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RGBD_DINOV3_HouseCat6D_final_copy.py ADDED
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
16
+ import torch
17
+ from custom_utils import ShapeNetCore
18
+ from custom_utils import _compute_fov,_sample_points_from_faces
19
+ from custom_utils import image_grid
20
+ from custom_utils.shapenet_base import HouseCatDataset
21
+ import matplotlib.pyplot as plt
22
+ import numpy as np
23
+ import k3d
24
+ import os
25
+ import json
26
+ import torch
27
+ from PIL import Image
28
+
29
+ import cv2
30
+ import imageio
31
+ import numpy as np
32
+ from PIL import Image
33
+ import matplotlib.pyplot as plt
34
+ from torchvision import transforms
35
+ from custom_utils.extractor import ViTExtractor
36
+ import torch.nn.functional as F
37
+ from sklearn.decomposition import PCA as sklearnPCA
38
+ import math
39
+ from custom_utils.utils_general import center_crop
40
+
41
+ from pytorch3d.io import load_objs_as_meshes, load_obj
42
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
43
+ from pytorch3d.structures import Meshes
44
+ from pytorch3d.renderer import (
45
+ PerspectiveCameras,
46
+ FoVPerspectiveCameras,
47
+ PointLights,
48
+ MeshRasterizer,
49
+ MeshRenderer,
50
+ RasterizationSettings,
51
+ HardPhongShader,
52
+ TexturesVertex,
53
+ look_at_view_transform,
54
+ ray_bundle_to_ray_points,
55
+ NDCMultinomialRaysampler,
56
+ TexturesUV,
57
+ BlendParams,
58
+
59
+ TexturesVertex
60
+ )
61
+
62
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
63
+ from pytorch3d.structures import Pointclouds
64
+ import torch
65
+ from pytorch3d.ops import sample_farthest_points, knn_points, knn_gather
66
+
67
+ from matplotlib import cm
68
+ import numpy as np
69
+ import matplotlib.pyplot as plt
70
+ from sklearn.decomposition import PCA
71
+ from mpl_toolkits.mplot3d import Axes3D
72
+ import open3d as o3d
73
+
74
+ import torch
75
+ import torch.nn as nn
76
+ import torch.nn.functional as F
77
+ from transformers import AutoConfig, AutoModel
78
+
79
+ class Dinov3PatchExtractor(nn.Module):
80
+ """
81
+ Returns patch tokens as [B, C, T] (C=384 for ViT-S/16).
82
+ Input must be ImageNet-normalized [B,3,H,W].
83
+ """
84
+ def __init__(self, model_id="facebook/dinov3-vits16-pretrain-lvd1689m", freeze=True):
85
+ super().__init__()
86
+ self.cfg = AutoConfig.from_pretrained(model_id)
87
+ self.C = self.cfg.hidden_size # 384
88
+ self.nreg = getattr(self.cfg, "num_register_tokens", 0)
89
+ self.backbone = AutoModel.from_pretrained(model_id).eval()
90
+ self.p = 16 # ViT-S/16 的 patch 大小
91
+ if freeze:
92
+ for p in self.backbone.parameters():
93
+ p.requires_grad = False
94
+
95
+ @torch.no_grad()
96
+ def forward(self, x): # x: [B,3,H,W], normalized
97
+ B, _, H, W = x.shape
98
+ out = self.backbone(x)
99
+ seq = out.last_hidden_state # [B, T_all, C]
100
+ patch_seq = seq[:, 1 + self.nreg :, :] # drop CLS + registers -> [B, T_patch, C]
101
+
102
+
103
+ # 关键:用输入尺寸和 patch 大小推 H_p, W_p
104
+ H_p = H // self.p
105
+ W_p = W // self.p
106
+ T = patch_seq.shape[1]
107
+
108
+ # 若预处理不是整除,或模型内部有 pad/裁剪,做个健壮性兜底
109
+ if H_p * W_p != T:
110
+ # 按长宽比从 T 的因子中挑最合理的 (H_p, W_p)
111
+ aspect = H / W
112
+ best = None
113
+ for h in range(1, int(math.sqrt(T)) + 1):
114
+ if T % h == 0:
115
+ w = T // h
116
+ for (hh, ww) in [(h, w), (w, h)]:
117
+ score = abs((hh / ww) - aspect)
118
+ if best is None or score < best[2]:
119
+ best = (hh, ww, score)
120
+ if best is None:
121
+ raise RuntimeError(f"Cannot factor T={T} into (H_p,W_p).")
122
+ H_p, W_p, _ = best
123
+
124
+ feat = patch_seq.view(B, H_p, W_p, self.C).permute(0, 3, 1, 2) # [B,C,H_p,W_p]
125
+ return feat
126
+
127
+
128
+ class DINOv3ExtractorAdapter:
129
+ """
130
+ Adapter to mimic ViTExtractor.extract_descriptors(batch, layer, facet, bin)
131
+ Returns descriptors with shape [B, 1, T, d] like ViTExtractor.
132
+ """
133
+ def __init__(self, model_id="facebook/dinov3-vits16-pretrain-lvd1689m", device="cuda"):
134
+ self.device = device
135
+ self.model = Dinov3PatchExtractor(model_id, freeze=True).to(device)
136
+ self.p = 16 # patch size for vits16
137
+ self.stride = (16, 16) # nominal stride on tokens
138
+ self.mean = (0.485, 0.456, 0.406) # ImageNet normalization
139
+ self.std = (0.229, 0.224, 0.225)
140
+
141
+ @torch.no_grad()
142
+ def extract_descriptors(self, batch, layer=11, facet='token', bin=False, include_cls=False):
143
+ """
144
+ batch: [B,3,H,W] normalized to ImageNet stats.
145
+ returns: [B, 1, T, d](T = H_p*W_p, d=384)
146
+ """
147
+ # DINOv3 doesn't expose q/k/v hooks like timm; we just use its final patch tokens.
148
+ # 先拿到 [B,C,H_p,W_p]
149
+ feat_map = self.model(batch.to(self.device)) # [B,384,H_p,W_p]
150
+ B, C, H_p, W_p = feat_map.shape
151
+ # 再回到 [B,1,T,d] 以兼容你现有代码
152
+ desc = feat_map.flatten(2).permute(0, 2, 1).unsqueeze(1) # [B,1,H_p*W_p,384]
153
+ return desc
154
+
155
+
156
+ def sample_points_on_sphere(num_points=80):
157
+ points = []
158
+ phi = (1 + math.sqrt(5)) / 2 # golden ratio
159
+
160
+ for i in range(num_points):
161
+ theta = 2 * math.pi * i / phi # azimuthal angle
162
+ z = 1 - (2 * i + 1) / num_points # z-coordinate, uniform from -1 to 1
163
+ radius = math.sqrt(1 - z * z) # radius for the xy-plane
164
+ x = radius * math.cos(theta)
165
+ y = radius * math.sin(theta)
166
+ points.append([x, y, z])
167
+
168
+ return torch.tensor(points, dtype=torch.float32)
169
+
170
+ def get_cube_vertices():
171
+ # Cube vertices (8 vertices)
172
+ return torch.tensor([[1, 1, 1],
173
+ [1, 1, -1],
174
+ [1, -1, 1],
175
+ [1, -1, -1],
176
+ [-1, 1, 1],
177
+ [-1, 1, -1],
178
+ [-1, -1, 1],
179
+ [-1, -1, -1]], dtype=torch.float32) # Ensure float type
180
+
181
+
182
+ def render(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
183
+ # prepare the camera
184
+ num_views = 8
185
+ # Get the cube vertices
186
+ #cube_vertices = get_cube_vertices()*scale
187
+ cube_vertices = sample_points_on_sphere(num_views)*scale
188
+ #up = torch.randn(1, 3)
189
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
190
+ up = up / torch.norm(up, dim=1)[:, None]
191
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
192
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
193
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
194
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
195
+
196
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
197
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
198
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
199
+ in_ndc=False)
200
+
201
+ # prepare the lights
202
+ raster_settings = RasterizationSettings(image_size=image_size)
203
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None], ambient_color=(light,),diffuse_color=(light,),device=device)
204
+
205
+ # move the data to the device
206
+ meshes = meshes.to(device)
207
+ cameras = cameras.to(device)
208
+ if len(cameras) != 1 and len(cameras) % len(meshes) != 0:
209
+ raise ValueError("Mismatch between batch dims of cameras and meshes.")
210
+ if len(cameras) > 1:
211
+ meshes = meshes.extend(len(cameras) // len(meshes))
212
+
213
+ # prepare the renderer
214
+ class MeshRendererWithDepth(torch.nn.Module):
215
+ def __init__(self, rasterizer, shader):
216
+ super().__init__()
217
+ self.rasterizer = rasterizer
218
+ self.shader = shader
219
+
220
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
221
+ fragments = self.rasterizer(meshes_world, **kwargs)
222
+ images = self.shader(fragments, meshes_world, **kwargs)
223
+ return images, fragments.zbuf
224
+
225
+
226
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
227
+ renderer = MeshRendererWithDepth(
228
+ rasterizer=MeshRasterizer(
229
+ cameras=cameras,
230
+ raster_settings=raster_settings,
231
+ ),
232
+ # Set background color to blue [R, G, B]
233
+
234
+ shader=HardPhongShader(
235
+ device=device,
236
+ cameras=cameras,
237
+ lights=lights,
238
+ blend_params=blend_params
239
+ )
240
+ )
241
+
242
+ images,fragments = renderer(meshes)
243
+ return images,fragments,cameras
244
+
245
+
246
+ def render_batch(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
247
+ # prepare the camera
248
+ num_views = 8
249
+ # Get the cube vertices
250
+ cube_vertices = get_cube_vertices()*scale
251
+ #cube_vertices = sample_points_on_sphere(num_views)*scale
252
+ up = torch.randn(1, 3)
253
+ # up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
254
+ up = up / torch.norm(up, dim=1)[:, None]
255
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
256
+
257
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
258
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
259
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
260
+
261
+
262
+ # prepare the renderer
263
+ class MeshRendererWithDepth(torch.nn.Module):
264
+ def __init__(self, rasterizer, shader):
265
+ super().__init__()
266
+ self.rasterizer = rasterizer
267
+ self.shader = shader
268
+
269
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
270
+ fragments = self.rasterizer(meshes_world, **kwargs)
271
+ images = self.shader(fragments, meshes_world, **kwargs)
272
+ return images, fragments.zbuf
273
+
274
+
275
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
276
+
277
+ batch_size = 10
278
+ all_images=[]
279
+ all_fragments=[]
280
+
281
+ # move the data to the device
282
+ meshes = meshes.extend(batch_size).to(device)
283
+ for i in range(0,R.shape[0],batch_size):
284
+ R_batch = R[i:i+batch_size]
285
+ T_batch = T[i:i+batch_size]
286
+ cameras_batch = PerspectiveCameras(device=device, R=R_batch, T=T_batch, image_size=((420,420),),
287
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
288
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
289
+ in_ndc=False).to(device)
290
+
291
+ # prepare the lights
292
+ raster_settings = RasterizationSettings(image_size=image_size)
293
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None],
294
+ ambient_color=(light,),diffuse_color=(light,),device=device)
295
+
296
+ renderer = MeshRendererWithDepth(
297
+ rasterizer=MeshRasterizer(
298
+ cameras=cameras_batch,
299
+ raster_settings=raster_settings,
300
+ ),
301
+ # Set background color to blue [R, G, B]
302
+ shader=HardPhongShader(
303
+ device=device,
304
+ cameras=cameras_batch,
305
+ lights=lights,
306
+ blend_params=blend_params
307
+ )
308
+ )
309
+ images,fragments = renderer(meshes)
310
+ all_images.append(images)
311
+ all_fragments.append(fragments)
312
+ all_images = torch.cat(all_images,dim=0)
313
+ all_fragments = torch.cat(all_fragments,dim=0)
314
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
315
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
316
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
317
+ in_ndc=False).to(device)
318
+ return all_images,all_fragments,cameras
319
+
320
+
321
+ def fuse_feature_rgbd(extractor,images,fragments,cameras):
322
+ dino_feat_masked_list = []
323
+ feature_point_cloud_list = []
324
+ for i in range(images.shape[0]):
325
+ image = images.cpu().numpy()[i, :, :, :3]
326
+ image_mask = images[i, ..., 3].cpu().numpy()!=0
327
+ crop_size = (420, 420)
328
+ crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
329
+ cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
330
+ #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
331
+ orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
332
+
333
+ to_tensor = transforms.ToTensor()
334
+ input_image = to_tensor(cropped_image_np).cuda(0)
335
+ input_image = input_image.unsqueeze(0)
336
+ #input_image=extractor.preprocess_pil(input_image)
337
+ mean = torch.tensor([0.485, 0.456, 0.406]).cuda(0)
338
+ std = torch.tensor([0.229, 0.224, 0.225]).cuda(0)
339
+ input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
340
+
341
+ _desc_q = extractor.extract_descriptors(input_image,layer=11, facet='key', include_cls=True).squeeze(1) # (1,900,384)
342
+ # _desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
343
+ #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
344
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
345
+ # _desc_q = _desc_q / (_norm_q)
346
+
347
+ desc = _desc_q[:,1:,:][None]
348
+ #cls_token_q = _desc_q[:,0,:] #B,C`
349
+
350
+ input_mask = to_tensor(crop_mask).cuda(0)
351
+ input_mask = input_mask.unsqueeze(0)
352
+
353
+ img_mask = to_tensor(image_mask)
354
+
355
+ img_mask = img_mask.permute(1,2,0)
356
+
357
+ dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
358
+ # create dino-feat with orignal size
359
+ dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
360
+ dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
361
+ # Fill the dino features into the original tensor at the specified bounding box
362
+ dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
363
+ # Apply the mask
364
+ dino_feat_masked = dino_feat_orig * img_mask
365
+ dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
366
+ dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
367
+
368
+ image_mask = images[i, ..., 3][None,None]
369
+ depth_image = fragments[i, ..., 0][None]*image_mask
370
+
371
+ # # Define the kernel for erosion (3x3 ones kernel)
372
+ # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
373
+ # # Number of erosion iterations
374
+ # iterations = 5
375
+
376
+ # # Perform iterative erosion
377
+ # for i in range(iterations):
378
+ # # Apply erosion using 2D convolution
379
+ # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
380
+ # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
381
+
382
+ feature_point_cloud = get_rgbd_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
383
+
384
+ index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
385
+ points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
386
+ colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
387
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
388
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
389
+ feature_point_cloud = torch.cat((points, colors), dim=1)
390
+
391
+ dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
392
+ feature_point_cloud_list.append(feature_point_cloud)
393
+ feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
394
+ dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
395
+ return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
396
+
397
+
398
+ def downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts=1024,k_nearest_neighbors=100, instance_points=None):
399
+ #N_1, C_1 = 2048, 384 # Example number of points and features
400
+ num_points_to_sample = num_pts
401
+ k_nearest_neighbors = k_nearest_neighbors
402
+
403
+ # Example input pointcloud and features (N_1, C_1), where N_1 is the number of points and C_1 is the feature dimension
404
+ pointcloud = feature_point_cloud[None,:,:3].cuda() # Shape (1, N_1, 3) for 3D coordinates
405
+ features = feature_point_cloud[None,:,3:].cuda() # Shape (1, N_1, C_1) for features
406
+
407
+ # Step 1: FPS to downsample the points
408
+ # We use sample_farthest_points to select num_points_to_sample points
409
+ sampled_points, sampled_indices = sample_farthest_points(pointcloud, K=num_points_to_sample) # Shape: (1, 1024, 3), (1, 1024)
410
+ if instance_points is not None:
411
+ sampled_points = instance_points
412
+
413
+ # Step 2: KNN to find nearest neighbors
414
+ # Find the k nearest neighbors for each sampled point in the original pointcloud
415
+ dists, knn_indices, _ = knn_points(sampled_points, pointcloud, K=k_nearest_neighbors, return_nn=False)
416
+
417
+ # Step 3: Gather the features of the k-nearest neighbors using the knn indices
418
+ # Use knn_gather to get neighbor features for each sampled point
419
+ neighbor_features = knn_gather(features, knn_indices) # Shape: (1, 1024, k, C_1)
420
+
421
+ # Step 4: Aggregate features from the neighbors (e.g., by averaging)
422
+ #aggregated_features,_ = torch.max(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
423
+ aggregated_features = torch.mean(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
424
+ return sampled_points, aggregated_features
425
+
426
+
427
+ def vis_pca(feature):
428
+ n_components=3 # the first component is to seperate the object from the background
429
+
430
+ pca = sklearnPCA(n_components=n_components)
431
+ feature = pca.fit_transform(feature.detach().cpu().numpy())
432
+ for show_channel in range(n_components):
433
+ # min max normalize the feature map
434
+ feature[:, show_channel] = (feature[:, show_channel] - feature[:, show_channel].mean()) / (feature[:, show_channel].std()*10)
435
+ feature_resized = np.clip(feature[:,:]+0.5,0,1)
436
+ return feature_resized
437
+
438
+
439
+ def patch2pixel_feats(patch_features, original_size):
440
+ """
441
+ 修改版:自动根据 T(patch 数量)和原图比例推算 (Hp, Wp)
442
+ """
443
+ H, W = original_size
444
+ B = patch_features.shape[0]
445
+ T = patch_features.shape[2]
446
+ C = patch_features.shape[3]
447
+
448
+ # ✅ 【修改1】自动寻找 (Hp, Wp),而不是用 sqrt(T)
449
+ aspect = H / W
450
+ best = None
451
+ for h in range(1, int(math.sqrt(T)) + 1):
452
+ if T % h == 0:
453
+ w = T // h
454
+ for hh, ww in [(h, w), (w, h)]:
455
+ score = abs((hh / ww) - aspect)
456
+ if best is None or score < best[2]:
457
+ best = (hh, ww, score)
458
+ Hp, Wp, _ = best # 比如 27, 25
459
+
460
+ # ✅ 【修改2】用 Hp, Wp 替代 num_patches
461
+ patch_features = patch_features.reshape(B, Hp, Wp, C)
462
+
463
+ # ✅ 【修改3】后面不变
464
+ patch_features = patch_features.permute(0, 3, 1, 2)
465
+ pixel_features = F.interpolate(
466
+ patch_features, size=(H, W), mode='bilinear', align_corners=False
467
+ )
468
+ pixel_features = pixel_features.squeeze().permute(1, 2, 0)
469
+
470
+ return pixel_features
471
+
472
+
473
+ def vis_pca_pixelwise(feature):
474
+ n_components = 4 # The number of PCA components to use
475
+ batch, feat_dim, height,width = feature.shape
476
+
477
+ # Reshape the feature to (num_pixels, feat_dim)
478
+ num_pixels = height * width
479
+ feature_reshaped = np.array(feature).transpose(0,2,3,1).reshape(-1, feat_dim)
480
+
481
+
482
+ # Apply PCA
483
+ pca = sklearnPCA(n_components=n_components)
484
+ feature_pca = pca.fit_transform(feature_reshaped)
485
+
486
+ # Min-max normalization for each component
487
+ # for show_channel in range(n_components):
488
+ # feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].min()) / \
489
+ # (feature_pca[:, show_channel].max() - feature_pca[:, show_channel].min() + 1e-8) # Small epsilon to avoid division by zero
490
+ for show_channel in range(n_components):
491
+ feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].mean()) / \
492
+ (feature_pca[:, show_channel].std()*10 + 1e-8) # Small epsilon to avoid division by zero
493
+
494
+ feature_pca = np.clip(feature_pca+0.5, 0, 1)
495
+ # Reshape the PCA result back to (height, width, n_components)
496
+ feature_resized = feature_pca.reshape(batch,height,width,n_components)[...,1:4]
497
+ return feature_resized
498
+
499
+ def normalize_mesh_verts(data):
500
+ # data [N, 3]
501
+ min_vals, _ = torch.min(data, dim=0)
502
+ max_vals, _ = torch.max(data, dim=0)
503
+ bbox_sizes = max_vals - min_vals
504
+ scale = torch.norm(bbox_sizes)
505
+ print("Scale:", scale)
506
+ normalized_verts = verts / scale
507
+ return normalized_verts
508
+
509
+ def plot_pointclouds_with_color_mapping(pc1_f, pc2_f,pc1,pc2, query_points, similarity_threshold=None):
510
+ """
511
+ Visualizes two 3D point clouds. The second point cloud (pc2) is color-mapped
512
+ using the 'viridis' colormap based on its similarity (proximity) to the sampled
513
+ query points in the first point cloud (pc1).
514
+
515
+ Parameters:
516
+ - pc1: np.ndarray of shape (N, 3), first point cloud #partial
517
+ - pc2: np.ndarray of shape (M, 3), second point cloud # global
518
+ - query_points: list of indices in pc1, representing the query points to compare.
519
+ - similarity_threshold: float, optional, threshold to cap the similarity distance.
520
+ """
521
+
522
+
523
+ pc1_f = pc1_f / np.linalg.norm(pc1_f, axis=1)[:, None] # Normalize the features
524
+ pc2_f = pc2_f / np.linalg.norm(pc2_f, axis=1)[:, None] # Normalize the features
525
+ # Create a figure with subplots
526
+ fig = plt.figure(figsize=(12, 10))
527
+ num_query_points = len(query_points)
528
+ # Set limits and labels
529
+ size = pc2.max() - pc2.min()
530
+ # Plot the first point cloud in the first subplot
531
+ ax1 = fig.add_subplot(1, num_query_points + 1, 1, projection='3d')
532
+ ax1.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color='grey', label='Point Cloud 1 (Left)', alpha=0.1,s=10)
533
+
534
+ # Define a color list for each query point
535
+ query_colors = cm.tab10(np.linspace(0, 1, num_query_points)) # Use tab10 colormap for distinct colors
536
+
537
+ # Highlight query points in pc1 with different colors
538
+ for i, idx in enumerate(query_points):
539
+ ax1.scatter(pc1[idx, 0], pc1[idx, 1], pc1[idx, 2],
540
+ color=query_colors[i], s=100, edgecolor='k', label=f'Query Point {idx}')
541
+
542
+ ax1.set_title('Point Cloud 1 with Query Points')
543
+ ax1.set_xlabel('X')
544
+ ax1.set_ylabel('Y')
545
+ ax1.set_zlabel('Z')
546
+ ax1.set_xlim(-size / 1.4, size / 1.4)
547
+ ax1.set_ylim(-size / 1.4, size / 1.4)
548
+ ax1.set_zlim(-size / 1.4, size / 1.4)
549
+ ax1.view_init(elev=45, azim=-45)
550
+ ax1.grid(True)
551
+ ax1.legend()
552
+
553
+ # Plot the second point cloud in the subsequent subplots
554
+ for k in range(num_query_points):
555
+
556
+ ax = fig.add_subplot(1, num_query_points + 1, k + 2, projection='3d')
557
+
558
+ # Calculate distances between query points in pc1 and all points in pc2
559
+ similarity =(pc1_f[query_points[k]][None]@ pc2_f.T).reshape(-1) # (1, 3) x (M, 3) = (1, M)
560
+ # For each point in pc2, take the minimum distance to any query point
561
+ min_similarity = np.min(similarity, axis=0)
562
+ # Optionally cap the similarity distances to a threshold (to avoid extreme values)
563
+ similarity_threshold= 0.3
564
+ if similarity_threshold is not None:
565
+ similarity = np.clip(similarity, similarity_threshold,1)
566
+ # Normalize the distances to a range of 0 to 1 for colormap mapping
567
+ similarity = (similarity - np.min(similarity)) / (np.max(similarity) - np.min(similarity))
568
+ colors = cm.plasma(similarity)
569
+
570
+ # Plot the second point cloud with color mapping based on similarity
571
+ ax.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color=colors, s=15, alpha=1.0, label='Point Cloud 2 (Right)', edgecolor='k')
572
+
573
+ ax.set_xlim(-size / 1.4, size / 1.4)
574
+ ax.set_ylim(-size / 1.4, size / 1.4)
575
+ ax.set_zlim(-size / 1.4, size / 1.4)
576
+ ax.set_title(f'QP_{query_points[k]}')
577
+ ax.set_xlabel('X')
578
+ ax.set_ylabel('Y')
579
+ ax.set_zlabel('Z')
580
+ ax.view_init(elev=45, azim=-45)
581
+ ax.grid(True)
582
+ ax.legend()
583
+
584
+ # Show the plot
585
+ plt.tight_layout()
586
+ plt.show()
587
+
588
+
589
+ def plot_pointclouds_3d_with_copca_old(global_sem_pcd, partial_sem_pcd, global_pcd, partial_pcd):
590
+ """
591
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
592
+
593
+ Parameters:
594
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
595
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
596
+ """
597
+
598
+
599
+ n_components = 3
600
+ # Step 1: Perform PCA on both global and partial point clouds
601
+ sem_pca = PCA(n_components=n_components)
602
+ sem_pca = sem_pca.fit(global_sem_pcd) # shape (N+M, 3)
603
+
604
+ transformed_sem_pcd_list = [sem_pca.transform(pcd) for pcd in [global_sem_pcd,partial_sem_pcd]]
605
+ sem_pcd_pca = np.concatenate(transformed_sem_pcd_list,axis=0)
606
+ for show_channel in range(n_components):
607
+ sem_pcd_pca[:, show_channel] = (sem_pcd_pca[:, show_channel] - sem_pcd_pca[:, show_channel].mean()) / \
608
+ (sem_pcd_pca[:, show_channel].std()*5 + 1e-8) # Small epsilon to avoid division by zero
609
+
610
+ # sem_pcd_pca_min = sem_pcd_pca.min()
611
+ # sem_pcd_pca_max = sem_pcd_pca.max()
612
+ # sem_pcd_pca = (sem_pcd_pca- sem_pcd_pca_min) / (sem_pcd_pca_max - sem_pcd_pca_min) # Normalize to [0, 1]
613
+
614
+ sem_pcd_pca = np.clip(sem_pcd_pca[:,:]+0.5, 0, 1)
615
+ global_pca = sem_pcd_pca[:global_sem_pcd.shape[0]] # shape (N, 3)
616
+ partial_pca = sem_pcd_pca[-partial_sem_pcd.shape[0]:] # shape (M, 3)
617
+
618
+ # Step 2: Create a 3D scatter plot
619
+ fig = plt.figure(figsize=(12, 6))
620
+ ax = fig.add_subplot(121, projection='3d')
621
+
622
+
623
+ # Global point cloud
624
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
625
+ c=global_pca, marker='o', s=100, alpha=1.0, label='Global Point Cloud')
626
+
627
+ # Set labels for each axis
628
+ # ax.set_xlabel('X axis')
629
+ # ax.set_ylabel('Y axis')
630
+ # ax.set_zlabel('Z axis')
631
+ ax.set_xlim(-0.5, 0.5)
632
+ ax.set_ylim(-0.5, 0.5)
633
+ ax.set_zlim(-0.5, 0.5)
634
+
635
+ ax1 = fig.add_subplot(122, projection='3d')
636
+
637
+ # Partial point cloud
638
+ ax1.scatter(partial_pcd[:, 0], partial_pcd[:, 1], partial_pcd[:, 2],
639
+ c=partial_pca, marker='o', s=100, alpha=1.0, label='Partial Point Cloud')
640
+
641
+ # ax1.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
642
+ # marker='o', s=10, alpha=0.1)
643
+ # Set labels for each axis
644
+ # ax1.set_xlabel('X axis')
645
+ # ax1.set_ylabel('Y axis')
646
+ # ax1.set_zlabel('Z axis')
647
+
648
+
649
+ ax1.set_xlim(-0.5, 0.5)
650
+ ax1.set_ylim(-0.5, 0.5)
651
+ ax1.set_zlim(-0.5, 0.5)
652
+ plt.tight_layout()
653
+
654
+ ax.view_init(120,-95)
655
+ ax1.view_init(120,-95)
656
+
657
+
658
+ ax.set_axis_off()
659
+ ax.set_facecolor((0, 0, 0, 0))
660
+ ax1.set_axis_off()
661
+ ax1.set_facecolor((0, 0, 0, 0))
662
+
663
+ plt.show()
664
+
665
+
666
+ def plot_pointclouds_3d_with_pca(global_sem_pcd, global_pcd):
667
+ """
668
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
669
+
670
+ Parameters:
671
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
672
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
673
+ """
674
+ #sem_pcd = np.concatenate((global_sem_pcd,partial_sem_pcd), axis=0) # shape (N+M, D)
675
+
676
+ # Step 1: Perform PCA on both global and partial point clouds
677
+ sem_pca = PCA(n_components=3)
678
+ sem_pcd_pca = sem_pca.fit_transform(global_sem_pcd) # shape (N+M, 3)
679
+
680
+ for i in range(3): # Iterate over each component (3 in total for RGB)
681
+ sem_pcd_pca_mean = sem_pcd_pca[:, i].mean()
682
+ sem_pcd_pca_std = sem_pcd_pca[:, i].std()
683
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - sem_pcd_pca_mean) / (sem_pcd_pca_std*5+1e-8) # Normalize to [0, 1]
684
+
685
+
686
+ global_pca = np.clip(sem_pcd_pca+0.5,0,1)
687
+ # scatter plot
688
+ fig = plt.figure(figsize=(6, 6))
689
+ ax = fig.add_subplot(111, projection='3d')
690
+
691
+ # Global point cloud
692
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
693
+ c=global_pca, marker='o', s=50, alpha=1.0, label='Global Point Cloud')
694
+
695
+ # Remove axes and background
696
+ ax.set_axis_off()
697
+
698
+ # Set background color to none
699
+ ax.set_facecolor((0, 0, 0, 0))
700
+ # # Set labels for each axis
701
+ # ax.set_xlabel('X axis')
702
+ # ax.set_ylabel('Y axis')
703
+ # ax.set_zlabel('Z axis')
704
+ ax.set_xlim(-0.5, 0.5)
705
+ ax.set_ylim(-0.5, 0.5)
706
+ ax.set_zlim(-0.5, 0.5)
707
+
708
+ ax.view_init(-73,102)
709
+
710
+ return fig
711
+
712
+
713
+ def plot_pointclouds_3d_with_copca(global_sem_pcd_list, global_pcd_list,co_pca=True):
714
+ """
715
+ Visualizes multiple point clouds in 3D, each in a separate subplot, after applying CoPCA.
716
+ Coloring them based on their PCA components.
717
+
718
+ Parameters:
719
+ - global_sem_pcd_list: list of numpy arrays for semantic point clouds (one per object).
720
+ - global_pcd_list: list of numpy arrays for global point clouds (one per object).
721
+ """
722
+ num_pcds = len(global_sem_pcd_list) # Number of point clouds
723
+ print("Number of point clouds to visualize:", num_pcds)
724
+ # Step 1: Perform CoPCA (Common PCA) on the semantic point clouds
725
+ # Concatenate all point clouds to perform common PCA
726
+ if co_pca:
727
+
728
+ concatenated_pcds = np.concatenate(global_sem_pcd_list, axis=0) # shape (N_total, D)
729
+ copca = PCA(n_components=3, random_state=0)
730
+ copca.fit(concatenated_pcds[:1024]) # Fit PCA on all point clouds together
731
+ transformed_sem_pcd_list = [copca.transform(pcd) for pcd in global_sem_pcd_list]
732
+
733
+
734
+ signs = np.sign(np.sum(transformed_sem_pcd_list[0], axis=0))
735
+ # Post-process to ensure consistent orientation of PCA components
736
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
737
+ # For each component (column), align sign based on the sum of values in the column
738
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
739
+ else:
740
+ copca = PCA(n_components=3)
741
+ transformed_sem_pcd_list = [copca.fit_transform(pcd) for pcd in global_sem_pcd_list]
742
+ # Post-process to ensure consistent orientation of PCA components
743
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
744
+ signs = np.sign(np.sum(transformed_pcd, axis=0))
745
+ # For each component (column), align sign based on the sum of values in the column
746
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
747
+
748
+
749
+
750
+ # Create a figure with subplots arranged in a grid (based on number of point clouds)
751
+ fig = plt.figure(figsize=(6 * num_pcds, 6)) # Adjust figure size based on the number of subplots
752
+
753
+ # Loop over the point clouds
754
+ for idx, (sem_pcd_pca, global_pcd) in enumerate(zip(transformed_sem_pcd_list, global_pcd_list)):
755
+ ax = fig.add_subplot(1, num_pcds, idx + 1, projection='3d')
756
+
757
+ # Step 2: Normalize the PCA-transformed data to use as colors
758
+ for i in range(3): # Iterate over each component (3 in total for RGB)
759
+ pca_mean = sem_pcd_pca[:, i].mean()
760
+ pca_std = sem_pcd_pca[:, i].std()
761
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - pca_mean) / (pca_std * 5 + 1e-8) # Normalize
762
+
763
+ global_pca_colors = np.clip(sem_pcd_pca + 0.5, 0, 1) # Map to [0, 1] for RGB
764
+
765
+ # Scatter plot for this point cloud in the current subplot
766
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
767
+ c=global_pca_colors, marker='o', s=50, alpha=1.0)
768
+
769
+ # Remove axes and background
770
+ ax.set_axis_off()
771
+ ax.set_facecolor((0, 0, 0, 0))
772
+
773
+ # Set axis limits for each subplot
774
+ ax.set_xlim(-0.5, 0.5)
775
+ ax.set_ylim(-0.5, 0.5)
776
+ ax.set_zlim(-0.5, 0.5)
777
+
778
+ # Set view angle
779
+ ax.view_init(-55, 102)
780
+
781
+ # Adjust spacing between subplots
782
+ plt.tight_layout()
783
+
784
+ return fig
785
+
786
+
787
+
788
+ def unnormalize(x):
789
+ # x.shape : [H,W,3]
790
+ mean = np.array([0.485, 0.456, 0.406])
791
+ std = np.array([0.229, 0.224, 0.225])
792
+ return x * std + mean
793
+
794
+
795
+ from custom_utils.housecat6d_dataset import HouseCat6DTrainingDataset
796
+ trainset = HouseCat6DTrainingDataset(image_size=420, sample_num=1024,data_dir='/media/xyz/data1/HouseCat6D')
797
+
798
+ vis = True
799
+ device = "cuda"
800
+ import matplotlib
801
+ matplotlib.use('TkAgg')
802
+
803
+ #cat_list = ['bottle','box','can','cup','cutlery','remote','shoe','tube','teapot']
804
+ cat_list = ['cup']
805
+
806
+
807
+ sem_global_list = []
808
+ sem_global_pcd_list = []
809
+
810
+ # load semantc feature and show
811
+ ########################################
812
+ save_dir = 'Yung/yung_large_files/semantic_feature/test_notebook/8v'
813
+ #save_dir = './80views_textured_token'
814
+ if True:
815
+ for cat in cat_list:
816
+ # # orriginal
817
+ # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
818
+ # instances = [line.strip() for line in f.readlines()]
819
+
820
+ # print(instances)
821
+ # revised
822
+ # instance try cup-grey_handle
823
+ instances = ['cup-grey_handle']
824
+ sem_global_list = []
825
+ sem_global_pcd_list = []
826
+
827
+ # Load the mean shape point cloud
828
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
829
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
830
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
831
+ M = meanshape_pcd_tensor.shape[0]
832
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float()
833
+ #make sure map to cuda0
834
+ average_aggregated_features = torch.load(f'//mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v_key/sem_cat_pcd_untex/cup_dino_feature.pt', map_location={"cuda:1": "cuda:0"})
835
+ sem_global_pcd_list.append(meanshape_points[0])
836
+ sem_global_list.append(average_aggregated_features[0].detach().cpu())
837
+ #fig =plot_pointclouds_3d_with_pca(average_aggregated_features[0].detach().cpu(),meanshape_points[0])
838
+ #fig.savefig('test.png')
839
+ for j,instance in enumerate(instances):
840
+ #break
841
+ print("Processing", instance)
842
+ #obj_path = f'/media/xyz/data/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
843
+ #instance_pcd_tensor = torch.load(f'{save_dir}/saved_pcd_untex/{cat}/{instance}_pcd.pt')[0]
844
+ #obj_path = f'/media/xyz/data1/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
845
+ # if instance != 'cup-grey_handle':
846
+ # # original pcd
847
+ instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
848
+ # Load the instance point cloud
849
+ instance_pcd_np = np.loadtxt(instance_pcd_path)
850
+ reference_scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
851
+
852
+ # else:
853
+ # instance_pcd_path = f'Yung/yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/normalized_groundtruth_pca.ply'
854
+ # pcd = o3d.io.read_point_cloud(instance_pcd_path)
855
+ # instance_pcd_np = np.asarray(pcd.points)
856
+
857
+ current_scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
858
+ scale_factor = reference_scale / current_scale
859
+ instance_pcd_np = instance_pcd_np * scale_factor
860
+
861
+ scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
862
+ print("Scale:", scale)
863
+
864
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
865
+ N = instance_pcd_tensor.shape[0]
866
+ instance_points = instance_pcd_tensor.view(1, N, 3).float()
867
+ try:
868
+ # aggregated_features = torch.load(f'{save_dir}/saved_dino_pcd_untex/{cat}/{instance}_dino_feature.pt')
869
+ aggregated_features = average_aggregated_features
870
+ except:
871
+ print(f"Warning: {instance} not found.")
872
+ continue
873
+ # plot_pointclouds_3d_with_pca(aggregated_features[0].detach().cpu(),
874
+ # instance_points[0])
875
+
876
+ sem_global_pcd_list.append(instance_points[0].detach().cpu())
877
+ sem_global_list.append(aggregated_features[0].detach().cpu())
878
+ if len(sem_global_list)>4:
879
+ break
880
+
881
+ fig = plot_pointclouds_3d_with_copca(sem_global_list,sem_global_pcd_list,co_pca=True)
882
+ fig.savefig(f'./{save_dir}/{cat}.png')
883
+ ###############################
884
+
885
+
886
+ # TODO: Change extractor model to dinov3
887
+ # 1) Build a ViT-S/16 backbone from timm (shape-compatible with your hooks)
888
+ extractor = DINOv3ExtractorAdapter(
889
+ model_id="facebook/dinov3-vits16-pretrain-lvd1689m", # ViT-S/16
890
+ device="cuda"
891
+ )
892
+ extractor.model = extractor.model.cuda(0)
893
+ # extractor = torch.hub.load('facebookresearch/dinov2', model_dict['small'], pretrained=True).cuda()
894
+
895
+
896
+ # cat_list = ['bottle','box','can','cup','cutlery','glass','remote','shoe','tube','teapot']
897
+ cat_list = ['cup']
898
+
899
+ #cat_list = ['teapot']
900
+ #TODO: if condition for tex rendering
901
+ for cat in cat_list:
902
+ # orriginal
903
+ with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
904
+ instances = [line.strip() for line in f.readlines()]
905
+
906
+ print(instances)
907
+ # #revised
908
+ # # instance try cup-grey_handle
909
+ # instances = ['cup-grey_handle']
910
+
911
+ aggregated_features_list = [] # N * [1, 1024, 384]
912
+ # Load the mean shape point cloud
913
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
914
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
915
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
916
+ M = meanshape_pcd_tensor.shape[0]
917
+ # modify for cuda0
918
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float().cuda(0)
919
+
920
+
921
+ for j,instance in enumerate(instances):
922
+ # if instance != 'bottle-85_alcool':
923
+ # continue
924
+ print("Processing", instance)
925
+ obj_path = f'pose_dataset/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
926
+ instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
927
+
928
+ # Load the instance point cloud
929
+ instance_pcd_np = np.loadtxt(instance_pcd_path)
930
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
931
+ N = instance_pcd_tensor.shape[0]
932
+ # modify for cuda0
933
+ instance_points = instance_pcd_tensor.view(1, N, 3).float().cuda(0)
934
+
935
+ try:
936
+ verts, faces, aux = load_obj(obj_path)
937
+ except ValueError as e:
938
+ print(f"Warning: {e}, attempting to load without material.")
939
+
940
+ try:
941
+ verts, faces, aux = load_obj(obj_path, load_textures=True)
942
+ except ValueError as e2:
943
+ print(f"Failed to load {obj_path} without material: {e2}")
944
+ continue
945
+
946
+ # 检查 verts_uvs 是否为 None
947
+ if aux.verts_uvs is not None:
948
+ verts_uvs = aux.verts_uvs[None, ...] # (1, V, 2)
949
+ faces_uvs = faces.textures_idx[None, ...] # (1, F, 3)
950
+ tex_maps = aux.texture_images
951
+
952
+ # tex_maps is a dictionary of {material name: texture image}.
953
+ # Take the first image:
954
+ if tex_maps:
955
+ texture_image = list(tex_maps.values())[0]
956
+ texture_image = texture_image[None, ...] # (1, H, W, 3)
957
+
958
+ # Create a textures object
959
+ tex = TexturesUV(verts_uvs=verts_uvs, faces_uvs=faces_uvs, maps=texture_image)
960
+ print(f"Loaded texture for {instance}.")
961
+ else:
962
+ # 如果 verts_uvs 是 None,直接跳过纹理处理,或者你可以设置默认行为
963
+ print(f"No UV coordinates for {instance}, skipping texture mapping.")
964
+ tex = None
965
+
966
+ # Initialise the mesh with textures
967
+ verts = normalize_mesh_verts(verts) # Housecat meshes are absolute scale
968
+ meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
969
+ # Rotate mesh 180 degrees around Y axis
970
+ rotation_matrix = torch.tensor([
971
+ [-1.0, 0.0, 0.0],
972
+ [0.0, 1.0, 0.0],
973
+ [0.0, 0.0, -1.0]
974
+ ], dtype=torch.float32, device="cpu")
975
+ verts = torch.matmul(verts, rotation_matrix.T)
976
+
977
+ meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=tex)
978
+
979
+ if meshes.textures is None:
980
+ meshes.textures = TexturesVertex(
981
+ verts_features=torch.ones_like(meshes.verts_padded(), device=device)
982
+ )
983
+
984
+ # render the mesh with 8 views, scale means the distance from the object to the camera
985
+ image_size=(420,420)
986
+ #images,fragments,cameras = render_batch(meshes,image_size=image_size,scale=1.0)
987
+ images,fragments,cameras = render(meshes,image_size=image_size,scale=2.0)
988
+
989
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
990
+ rgb = images.cpu().numpy()[:, :, :, :3]
991
+ image_grid(rgb, rows=1, cols=8, rgb=True)
992
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_rendering-texture_reverse.png')
993
+ plt.close()
994
+
995
+ # get the feature point cloud
996
+ feature_point_cloud, dino_feat_masked, feature_point_cloud_list = fuse_feature_rgbd(extractor,images,fragments,cameras)
997
+
998
+ # get the downsampled aggregated feature point cloud
999
+ num_pts= 1024
1000
+ nn_num= 100 # larger nn_num will make the feature more smooth
1001
+ sampled_points,aggregated_features = downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts,nn_num)
1002
+
1003
+ # #Needed
1004
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
1005
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1006
+ # partial_feature_point_cloud[index,3:],
1007
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
1008
+ # partial_feature_point_cloud[index,:3])
1009
+
1010
+
1011
+ q=0
1012
+
1013
+ if False:
1014
+ q+=1
1015
+ inputs = trainset[q]
1016
+ rgb = inputs['rgb'][None].cuda()
1017
+ pts = inputs['pts'][None]
1018
+ choose = inputs['choose'][None]
1019
+ model = inputs['model'][None].cuda()
1020
+ rgb = inputs['rgb'][None].cuda()
1021
+
1022
+ _desc_q = extractor.forward_features(rgb)["x_prenorm"][:, :]
1023
+ #_desc_q = extractor.extract_descriptors(rgb,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
1024
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
1025
+ # _desc_q = _desc_q / (_norm_q)
1026
+
1027
+ dino_feature = _desc_q[:,1:,:]
1028
+
1029
+
1030
+ #dino_feature = self.rgb_extractor.forward_features(rgb)["x_prenorm"][:, 1:]
1031
+ #rgb=self.rgb_extractor.preprocess_pil(rgb)
1032
+ #dino_feature = self.rgb_extractor.extract_descriptors(rgb,layer=11,facet='key') # (1,900,384)
1033
+ f_dim = dino_feature.shape[-1]
1034
+ num_patches =int(dino_feature.shape[1]**0.5) # 1
1035
+ b=1
1036
+ dino_feature = dino_feature.reshape(b, num_patches, num_patches, f_dim).permute(0,3,1,2)
1037
+
1038
+ dino_feature = F.interpolate(dino_feature, size=(num_patches * 14, num_patches * 14), mode='nearest')
1039
+ dino_feature_2d_vis = dino_feature.detach().cpu()[0] #384, 224,224
1040
+
1041
+ b, d = dino_feature.shape[0:2]
1042
+ dino_feature = dino_feature.reshape(b,d,-1)
1043
+ choose_2 = choose.unsqueeze(1).repeat(1, d, 1).cuda()
1044
+ dino_feature = torch.gather(dino_feature,2,choose_2).contiguous() # b,d,n
1045
+
1046
+ #dino_feature = dino_feature / torch.std(dino_feature, dim=1, keepdim=True)
1047
+ #dino_feature = torch.norm(dino_feature, dim=1, keepdim=True)
1048
+ #choose_dino = choose.unsqueeze(1).repeat(1, d, 1Z
1049
+ #sem_model = sem_model / torch.std(sem_model, dim=-1, keepdim=True)
1050
+ #visual_global_sem_high = sem_model.detach().cpu().numpy()[0] #1024,384
1051
+ visual_partial_sem_high = dino_feature.permute(0,2,1).detach().cpu().numpy()[0] #1024,128
1052
+
1053
+ #visual_global_sem_low = self.feature_mlp(sem_model.permute(0,2,1)).permute(0,2,1).detach().cpu().numpy()[0]
1054
+ #visual_partial_sem_low = rgb_local.permute(0,2,1).detach().cpu().numpy()[0]
1055
+ # transform the pts with GT 9D Pose into object coordinate
1056
+ translation_gt = inputs['translation_label'][None]
1057
+ rotation_gt = inputs['rotation_label'][None]
1058
+ size_gt = inputs['size_label'][None]
1059
+ pts_obj_frame = (inputs['pts'] - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
1060
+ #kpt_obj_frame = (kpt_3d - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
1061
+
1062
+ # dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
1063
+ # plt.imshow(dino_feature_2d_vis_pca[:,:,:3])
1064
+ # plt.show()
1065
+ # fig =plt.figure()
1066
+ # rgb_unnorm = unnormalize(rgb[0].permute(1,2,0).detach().cpu())
1067
+ # plt.imshow(rgb_unnorm)
1068
+ # plt.show()
1069
+ # image_mask = ((rgb_unnorm.clone().sum(axis=2) >0.1)*1.0)[None,None] # 224,224
1070
+
1071
+ # rgb_mask = np.array(image_mask[0,0,:,:,None]).repeat(384, axis=2).transpose(2,0,1)
1072
+
1073
+ # dino_feature_2d_vis[rgb_mask==0] = 0
1074
+ # masked_dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
1075
+ # plt.imshow(masked_dino_feature_2d_vis_pca[:,:,:])
1076
+ # plt.show()
1077
+
1078
+
1079
+ # print('self.pca.cateagg-partial')
1080
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
1081
+ # #average_aggregated_features = torch.load(f'sem_cat_pcd/{cat}_dino_feature.pt')
1082
+
1083
+ average_aggregated_features = torch.load(f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/sem_cat_pcd/{cat}_dino_feature.pt')
1084
+ # #plot_pointclouds_3d_with_copca(aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), pts_obj_frame)
1085
+
1086
+ plot_pointclouds_3d_with_copca_old(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1087
+ visual_partial_sem_high,
1088
+ sampled_points.squeeze(0).detach().cpu().numpy(),
1089
+ pts_obj_frame[0].detach().cpu().numpy())
1090
+ plt.show()
1091
+
1092
+
1093
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1094
+ # visual_partial_sem_high,
1095
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
1096
+ # pts_obj_frame[0].detach().cpu().numpy())
1097
+
1098
+
1099
+ # #query_points =np.random.choice(1024, 3)
1100
+ # query_points, sampled_indices = sample_farthest_points(pts_obj_frame, K=4) # Shape: (1, 1024, 3), (1, 1024)
1101
+ # plot_pointclouds_with_color_mapping(visual_partial_sem_high,
1102
+ # aggregated_features.squeeze(0).detach().cpu().numpy(),
1103
+ # pts_obj_frame[0].detach().cpu().numpy(),
1104
+ # model[0].detach().cpu().numpy(),
1105
+ # sampled_indices[0], similarity_threshold=None)
1106
+
1107
+
1108
+ # # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1109
+ # # plot_pointclouds_3d_with_pca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1110
+ # partial_feature_point_cloud = feature_point_cloud_list[5]
1111
+ # plot_pointclouds_3d_with_copca(visual_partial_sem_high,
1112
+ # partial_feature_point_cloud[index,3:],
1113
+ # pts_obj_frame[0].detach().cpu().numpy(),
1114
+ # partial_feature_point_cloud[index,:3])
1115
+
1116
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), aggregated_features.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy())
1117
+
1118
+ os.makedirs(f'{save_dir}/saved_dino_pcd_untex-try/{cat}', exist_ok=True)
1119
+ torch.save(aggregated_features, f'{save_dir}/saved_dino_pcd_untex-try/{cat}/{instance}_dinov3_feature-texture_reverse.pt')
1120
+
1121
+ os.makedirs(f'{save_dir}/saved_pcd_untex-try/{cat}', exist_ok=True)
1122
+ torch.save(sampled_points, f'{save_dir}/saved_pcd_untex-try/{cat}/{instance}_pcd-texture_reverse.pt')
1123
+
1124
+ aggregated_features_list.append(aggregated_features)
1125
+ # #break
1126
+ vis_dino = vis_pca_pixelwise(np.array(dino_feat_masked))
1127
+ vis_img = np.clip(vis_dino[:,:,:,:],a_min=0,a_max=1)
1128
+ image_grid(vis_img, rows=1, cols=8, rgb=True)
1129
+
1130
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
1131
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_dinov3-texture_reverse.png')
1132
+ plt.close()
1133
+ if False:
1134
+
1135
+ rgb = images.cpu().numpy()[:, :, :, :3]
1136
+ mask = images[:, ..., 3].cpu().numpy()!=0
1137
+ depth_image = fragments[:, ..., 0].cpu().numpy()*mask
1138
+ image_grid(rgb, rows=1, cols=8, rgb=True)
1139
+ # os.makedirs(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino', exist_ok=True)
1140
+ # plt.savefig(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino/{instance}_rgb.png')
1141
+ # image_grid(depth_image[...,None], rows=2, cols=4, rgb=True)
1142
+ # image_grid(mask[...,None], rows=2, cols=4, rgb=True)
1143
+
1144
+
1145
+
1146
+ fig = plt.figure(figsize=(10, 10))
1147
+ ax = fig.add_subplot(111, projection="3d")
1148
+ #ax.scatter(sampled_points[:, 2], sampled_points[:,0], sampled_points[:, 1], c="b")
1149
+ pca_color =vis_pca(feature_point_cloud[:, 3:])
1150
+ ax.scatter(feature_point_cloud[:, 2], feature_point_cloud[:, 0], feature_point_cloud[:, 1], c=pca_color,s=0.1)
1151
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1152
+ ax.set_xlabel("z")
1153
+ ax.set_ylabel("x")
1154
+ ax.set_zlabel("y")
1155
+ ax.set_xlim(-2, 2)
1156
+ ax.set_ylim(-2, 2)
1157
+ ax.set_zlim(-2, 2)
1158
+ plt.title("Sampled Dense Points from Mesh")
1159
+ plt.show()
1160
+
1161
+ fig = plt.figure(figsize=(10, 10))
1162
+ ax = fig.add_subplot(111, projection="3d")
1163
+ pca_color =vis_pca(aggregated_features.squeeze(0))
1164
+ sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1165
+ ax.scatter(sampled_points[:, 2], sampled_points[:, 0], sampled_points[:, 1], c=pca_color,s=50)
1166
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1167
+ ax.set_xlabel("z")
1168
+ ax.set_ylabel("x")
1169
+ ax.set_zlabel("y")
1170
+ ax.set_xlim(-2, 2)
1171
+ ax.set_ylim(-2, 2)
1172
+ ax.set_zlim(-2, 2)
1173
+ plt.title("Sampled Sparse Points from Mesh")
1174
+ plt.show()
1175
+ #break
1176
+ # Assign the aggregated features to the mean shape point cloud
1177
+ aggregated_features_tensor = torch.cat(aggregated_features_list, dim=0) #[N, 1024, 384]
1178
+ average_aggregated_features = aggregated_features_tensor.mean(dim=0, keepdim=True)
1179
+ print("Average Aggregated Features Shape:", average_aggregated_features.shape) # Should be (1, 1024, 384)
1180
+
1181
+ os.makedirs(f'{save_dir}/sem_cat_pcd_untex-try', exist_ok=True)
1182
+ torch.save(average_aggregated_features, f'{save_dir}/sem_cat_pcd_untex-try/{cat}_dinov3_feature.pt')
1183
+
1184
+ # fig = plt.figure(figsize=(10, 10))
1185
+ # ax = fig.add_subplot(111, projection="3d")
1186
+ # pca_color =vis_pca(average_aggregated_features.squeeze(0))
1187
+ # # sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1188
+ # meanshape_points = meanshape_points.squeeze(0).cpu().detach().numpy()
1189
+ # ax.scatter(meanshape_points[:, 2], meanshape_points[:, 0], meanshape_points[:, 1], c=pca_color,s=10.0, marker='o')
1190
+ # ax.set_xlabel("z")
1191
+ # ax.set_ylabel("x")
1192
+ # ax.set_zlabel("y")
1193
+ # ax.set_xlim(-2, 2)
1194
+ # ax.set_ylim(-2, 2)
1195
+ # ax.set_zlim(-2, 2)
1196
+ # plt.title("Shape Prior Dino")
1197
+ # plt.show()
1198
+
RGBD_DINOV3_HouseCat6D_wlcop.py ADDED
@@ -0,0 +1,1467 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import pickle
2
+ import torch
3
+ from custom_utils import ShapeNetCore
4
+ from custom_utils import _compute_fov,_sample_points_from_faces
5
+ from custom_utils import image_grid
6
+ from custom_utils.shapenet_base import HouseCatDataset
7
+ import matplotlib.pyplot as plt
8
+ import numpy as np
9
+ import k3d
10
+ import os
11
+ import json
12
+ import torch
13
+ from PIL import Image
14
+ import numpy as np
15
+ import torch
16
+ from plyfile import PlyData # pip install plyfile
17
+ from types import SimpleNamespace
18
+ from pathlib import Path
19
+ import open3d as o3d
20
+ import re
21
+
22
+ import cv2
23
+ import imageio
24
+ import numpy as np
25
+ from PIL import Image
26
+ import matplotlib.pyplot as plt
27
+ from torchvision import transforms
28
+ from custom_utils.extractor import ViTExtractor
29
+ import torch.nn.functional as F
30
+ from sklearn.decomposition import PCA as sklearnPCA
31
+ import math
32
+ from custom_utils.utils_general import center_crop
33
+
34
+ from pytorch3d.io import load_objs_as_meshes, load_obj
35
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
36
+ from pytorch3d.structures import Meshes
37
+ from pytorch3d.renderer import (
38
+ PerspectiveCameras,
39
+ FoVPerspectiveCameras,
40
+ PointLights,
41
+ MeshRasterizer,
42
+ MeshRenderer,
43
+ RasterizationSettings,
44
+ HardPhongShader,
45
+ TexturesVertex,
46
+ look_at_view_transform,
47
+ ray_bundle_to_ray_points,
48
+ NDCMultinomialRaysampler,
49
+ TexturesUV,
50
+ BlendParams,
51
+
52
+ TexturesVertex
53
+ )
54
+
55
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
56
+ from pytorch3d.structures import Pointclouds
57
+ import torch
58
+ from pytorch3d.ops import sample_farthest_points, knn_points, knn_gather
59
+
60
+ from matplotlib import cm
61
+ import numpy as np
62
+ import matplotlib.pyplot as plt
63
+ from sklearn.decomposition import PCA
64
+ from mpl_toolkits.mplot3d import Axes3D
65
+
66
+ import torch
67
+ import torch.nn as nn
68
+ import torch.nn.functional as F
69
+ from transformers import AutoConfig, AutoModel
70
+
71
+ class Dinov3PatchExtractor(nn.Module):
72
+ """
73
+ Returns patch tokens as [B, C, T] (C=384 for ViT-S/16).
74
+ Input must be ImageNet-normalized [B,3,H,W].
75
+ """
76
+ def __init__(self, model_id="facebook/dinov3-vits16-pretrain-lvd1689m", freeze=True):
77
+ super().__init__()
78
+ self.cfg = AutoConfig.from_pretrained(model_id)
79
+ self.C = self.cfg.hidden_size # 384
80
+ self.nreg = getattr(self.cfg, "num_register_tokens", 0)
81
+ self.backbone = AutoModel.from_pretrained(model_id).eval()
82
+ self.p = 16 # ViT-S/16 的 patch 大小
83
+ if freeze:
84
+ for p in self.backbone.parameters():
85
+ p.requires_grad = False
86
+
87
+ @torch.no_grad()
88
+ def forward(self, x): # x: [B,3,H,W], normalized
89
+ B, _, H, W = x.shape
90
+ out = self.backbone(x)
91
+ seq = out.last_hidden_state # [B, T_all, C]
92
+ patch_seq = seq[:, 1 + self.nreg :, :] # drop CLS + registers -> [B, T_patch, C]
93
+
94
+
95
+ # 关键:用输入尺寸和 patch 大小推 H_p, W_p
96
+ H_p = H // self.p
97
+ W_p = W // self.p
98
+ T = patch_seq.shape[1]
99
+
100
+ # 若预处理不是整除,或模型内部有 pad/裁剪,做个健壮性兜底
101
+ if H_p * W_p != T:
102
+ # 按长宽比从 T 的因子中挑最合理的 (H_p, W_p)
103
+ aspect = H / W
104
+ best = None
105
+ for h in range(1, int(math.sqrt(T)) + 1):
106
+ if T % h == 0:
107
+ w = T // h
108
+ for (hh, ww) in [(h, w), (w, h)]:
109
+ score = abs((hh / ww) - aspect)
110
+ if best is None or score < best[2]:
111
+ best = (hh, ww, score)
112
+ if best is None:
113
+ raise RuntimeError(f"Cannot factor T={T} into (H_p,W_p).")
114
+ H_p, W_p, _ = best
115
+
116
+ feat = patch_seq.view(B, H_p, W_p, self.C).permute(0, 3, 1, 2) # [B,C,H_p,W_p]
117
+ return feat
118
+
119
+
120
+ class DINOv3ExtractorAdapter:
121
+ """
122
+ Adapter to mimic ViTExtractor.extract_descriptors(batch, layer, facet, bin)
123
+ Returns descriptors with shape [B, 1, T, d] like ViTExtractor.
124
+ """
125
+ def __init__(self, model_id="facebook/dinov3-vits16-pretrain-lvd1689m", device="cuda"):
126
+ self.device = device
127
+ self.model = Dinov3PatchExtractor(model_id, freeze=True).to(device)
128
+ self.p = 16 # patch size for vits16
129
+ self.stride = (16, 16) # nominal stride on tokens
130
+ self.mean = (0.485, 0.456, 0.406) # ImageNet normalization
131
+ self.std = (0.229, 0.224, 0.225)
132
+
133
+ @torch.no_grad()
134
+ def extract_descriptors(self, batch, layer=11, facet='token', bin=False, include_cls=False):
135
+ """
136
+ batch: [B,3,H,W] normalized to ImageNet stats.
137
+ returns: [B, 1, T, d](T = H_p*W_p, d=384)
138
+ """
139
+ # DINOv3 doesn't expose q/k/v hooks like timm; we just use its final patch tokens.
140
+ # 先拿到 [B,C,H_p,W_p]
141
+ feat_map = self.model(batch.to(self.device)) # [B,384,H_p,W_p]
142
+ B, C, H_p, W_p = feat_map.shape
143
+ # 再回到 [B,1,T,d] 以兼容你现有代码
144
+ desc = feat_map.flatten(2).permute(0, 2, 1).unsqueeze(1) # [B,1,H_p*W_p,384]
145
+ return desc
146
+
147
+
148
+ def sample_points_on_sphere(num_points=80):
149
+ points = []
150
+ phi = (1 + math.sqrt(5)) / 2 # golden ratio
151
+
152
+ for i in range(num_points):
153
+ theta = 2 * math.pi * i / phi # azimuthal angle
154
+ z = 1 - (2 * i + 1) / num_points # z-coordinate, uniform from -1 to 1
155
+ radius = math.sqrt(1 - z * z) # radius for the xy-plane
156
+ x = radius * math.cos(theta)
157
+ y = radius * math.sin(theta)
158
+ points.append([x, y, z])
159
+
160
+ return torch.tensor(points, dtype=torch.float32)
161
+
162
+ def get_cube_vertices():
163
+ # Cube vertices (8 vertices)
164
+ return torch.tensor([[1, 1, 1],
165
+ [1, 1, -1],
166
+ [1, -1, 1],
167
+ [1, -1, -1],
168
+ [-1, 1, 1],
169
+ [-1, 1, -1],
170
+ [-1, -1, 1],
171
+ [-1, -1, -1]], dtype=torch.float32) # Ensure float type
172
+
173
+
174
+
175
+ def render(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
176
+ # prepare the camera
177
+ num_views = 8
178
+ # Get the cube vertices
179
+ #cube_vertices = get_cube_vertices()*scale
180
+ cube_vertices = sample_points_on_sphere(num_views)*scale
181
+ #up = torch.randn(1, 3)
182
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
183
+ up = up / torch.norm(up, dim=1)[:, None]
184
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
185
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
186
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
187
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
188
+
189
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
190
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
191
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
192
+ in_ndc=False)
193
+
194
+ # prepare the lights
195
+ raster_settings = RasterizationSettings(image_size=image_size)
196
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None], ambient_color=(light,),diffuse_color=(light,),device=device)
197
+
198
+ # move the data to the device
199
+ meshes = meshes.to(device)
200
+ cameras = cameras.to(device)
201
+ if len(cameras) != 1 and len(cameras) % len(meshes) != 0:
202
+ raise ValueError("Mismatch between batch dims of cameras and meshes.")
203
+ if len(cameras) > 1:
204
+ meshes = meshes.extend(len(cameras) // len(meshes))
205
+
206
+ # prepare the renderer
207
+ class MeshRendererWithDepth(torch.nn.Module):
208
+ def __init__(self, rasterizer, shader):
209
+ super().__init__()
210
+ self.rasterizer = rasterizer
211
+ self.shader = shader
212
+
213
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
214
+ fragments = self.rasterizer(meshes_world, **kwargs)
215
+ images = self.shader(fragments, meshes_world, **kwargs)
216
+ return images, fragments.zbuf
217
+
218
+
219
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
220
+ renderer = MeshRendererWithDepth(
221
+ rasterizer=MeshRasterizer(
222
+ cameras=cameras,
223
+ raster_settings=raster_settings,
224
+ ),
225
+ # Set background color to blue [R, G, B]
226
+
227
+ shader=HardPhongShader(
228
+ device=device,
229
+ cameras=cameras,
230
+ lights=lights,
231
+ blend_params=blend_params
232
+ )
233
+ )
234
+
235
+ images,fragments = renderer(meshes)
236
+ return images,fragments,cameras
237
+
238
+
239
+ def render_batch(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
240
+ # prepare the camera
241
+ num_views = 8
242
+ # Get the cube vertices
243
+ cube_vertices = get_cube_vertices()*scale
244
+ # cube_vertices = sample_points_on_sphere(num_views)*scale
245
+ #up = torch.randn(1, 3)
246
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
247
+ #up = up / torch.norm(up, dim=1)[:, None]
248
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
249
+
250
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
251
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
252
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
253
+
254
+
255
+ # prepare the renderer
256
+ class MeshRendererWithDepth(torch.nn.Module):
257
+ def __init__(self, rasterizer, shader):
258
+ super().__init__()
259
+ self.rasterizer = rasterizer
260
+ self.shader = shader
261
+
262
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
263
+ fragments = self.rasterizer(meshes_world, **kwargs)
264
+ images = self.shader(fragments, meshes_world, **kwargs)
265
+ return images, fragments.zbuf
266
+
267
+
268
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
269
+
270
+ batch_size = 10
271
+ all_images=[]
272
+ all_fragments=[]
273
+
274
+ # move the data to the device
275
+ meshes = meshes.extend(batch_size).to(device)
276
+ for i in range(0,R.shape[0],batch_size):
277
+ R_batch = R[i:i+batch_size]
278
+ T_batch = T[i:i+batch_size]
279
+ cameras_batch = PerspectiveCameras(device=device, R=R_batch, T=T_batch, image_size=((420,420),),
280
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
281
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
282
+ in_ndc=False).to(device)
283
+
284
+ # prepare the lights
285
+ raster_settings = RasterizationSettings(image_size=image_size)
286
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None],
287
+ ambient_color=(light,),diffuse_color=(light,),device=device)
288
+
289
+ renderer = MeshRendererWithDepth(
290
+ rasterizer=MeshRasterizer(
291
+ cameras=cameras_batch,
292
+ raster_settings=raster_settings,
293
+ ),
294
+ # Set background color to blue [R, G, B]
295
+ shader=HardPhongShader(
296
+ device=device,
297
+ cameras=cameras_batch,
298
+ lights=lights,
299
+ blend_params=blend_params
300
+ )
301
+ )
302
+ images,fragments = renderer(meshes)
303
+ all_images.append(images)
304
+ all_fragments.append(fragments)
305
+ all_images = torch.cat(all_images,dim=0)
306
+ all_fragments = torch.cat(all_fragments,dim=0)
307
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
308
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
309
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
310
+ in_ndc=False).to(device)
311
+ return all_images,all_fragments,cameras
312
+
313
+
314
+ # def fuse_feature_rgbd(extractor,images,fragments,cameras):
315
+ # dino_feat_masked_list = []
316
+ # feature_point_cloud_list = []
317
+ # for i in range(images.shape[0]):
318
+ # image = images.cpu().numpy()[i, :, :, :3]
319
+ # image_mask = images[i, ..., 3].cpu().numpy()!=0
320
+ # crop_size = (420, 420)
321
+ # crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
322
+ # cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
323
+ # #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
324
+ # orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
325
+
326
+ # to_tensor = transforms.ToTensor()
327
+ # input_image = to_tensor(cropped_image_np).cuda(0)
328
+ # input_image = input_image.unsqueeze(0)
329
+ # #input_image=extractor.preprocess_pil(input_image)
330
+ # mean = torch.tensor([0.485, 0.456, 0.406]).cuda(0)
331
+ # std = torch.tensor([0.229, 0.224, 0.225]).cuda(0)
332
+ # input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
333
+
334
+ # _desc_q = extractor.extract_descriptors(input_image,layer=11, facet='key', include_cls=True).squeeze(1) # (1,900,384)
335
+ # # _desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
336
+ # #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
337
+ # # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
338
+ # # _desc_q = _desc_q / (_norm_q)
339
+
340
+ # desc = _desc_q[:,1:,:][None]
341
+ # #cls_token_q = _desc_q[:,0,:] #B,C`
342
+
343
+ # input_mask = to_tensor(crop_mask).cuda(0)
344
+ # input_mask = input_mask.unsqueeze(0)
345
+
346
+ # img_mask = to_tensor(image_mask)
347
+
348
+ # img_mask = img_mask.permute(1,2,0)
349
+
350
+ # dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
351
+ # # create dino-feat with orignal size
352
+ # dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
353
+ # dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
354
+ # # Fill the dino features into the original tensor at the specified bounding box
355
+ # dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
356
+ # # Apply the mask
357
+ # dino_feat_masked = dino_feat_orig * img_mask
358
+ # dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
359
+ # dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
360
+
361
+ # image_mask = images[i, ..., 3][None,None]
362
+ # depth_image = fragments[i, ..., 0][None]*image_mask
363
+
364
+ # # # Define the kernel for erosion (3x3 ones kernel)
365
+ # # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
366
+ # # # Number of erosion iterations
367
+ # # iterations = 5
368
+
369
+ # # # Perform iterative erosion
370
+ # # for i in range(iterations):
371
+ # # # Apply erosion using 2D convolution
372
+ # # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
373
+ # # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
374
+
375
+ # feature_point_cloud = get_feature_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
376
+
377
+ # index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
378
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
379
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
380
+ # # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
381
+ # # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
382
+ # feature_point_cloud = torch.cat((points, colors), dim=1)
383
+
384
+ # dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
385
+ # feature_point_cloud_list.append(feature_point_cloud)
386
+ # feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
387
+ # dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
388
+ # return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
389
+ def fuse_feature_rgbd(extractor,images,fragments,cameras):
390
+ dino_feat_masked_list = []
391
+ feature_point_cloud_list = []
392
+ for i in range(images.shape[0]):
393
+ image = images.cpu().numpy()[i, :, :, :3]
394
+ image_mask = images[i, ..., 3].cpu().numpy()!=0
395
+ crop_size = (420, 420)
396
+ crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
397
+ cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
398
+ #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
399
+ orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
400
+
401
+ to_tensor = transforms.ToTensor()
402
+ input_image = to_tensor(cropped_image_np).cuda(0)
403
+ input_image = input_image.unsqueeze(0)
404
+ #input_image=extractor.preprocess_pil(input_image)
405
+ mean = torch.tensor([0.485, 0.456, 0.406]).cuda(0)
406
+ std = torch.tensor([0.229, 0.224, 0.225]).cuda(0)
407
+ input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
408
+
409
+ _desc_q = extractor.extract_descriptors(input_image,layer=11, facet='key', include_cls=True).squeeze(1) # (1,900,384)
410
+ # _desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
411
+ #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
412
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
413
+ # _desc_q = _desc_q / (_norm_q)
414
+
415
+ desc = _desc_q[:,1:,:][None]
416
+ #cls_token_q = _desc_q[:,0,:] #B,C`
417
+
418
+ input_mask = to_tensor(crop_mask).cuda(0)
419
+ input_mask = input_mask.unsqueeze(0)
420
+
421
+ img_mask = to_tensor(image_mask)
422
+
423
+ img_mask = img_mask.permute(1,2,0)
424
+
425
+ dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
426
+ # create dino-feat with orignal size
427
+ dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
428
+ dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
429
+ # Fill the dino features into the original tensor at the specified bounding box
430
+ dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
431
+ # Apply the mask
432
+ dino_feat_masked = dino_feat_orig * img_mask
433
+ dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
434
+ dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
435
+
436
+ image_mask = images[i, ..., 3][None,None]
437
+ depth_image = fragments[i, ..., 0][None]*image_mask
438
+
439
+ # # Define the kernel for erosion (3x3 ones kernel)
440
+ # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
441
+ # # Number of erosion iterations
442
+ # iterations = 5
443
+
444
+ # # Perform iterative erosion
445
+ # for i in range(iterations):
446
+ # # Apply erosion using 2D convolution
447
+ # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
448
+ # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
449
+
450
+ feature_point_cloud = get_rgbd_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
451
+
452
+ index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
453
+ points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
454
+ colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
455
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
456
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
457
+ feature_point_cloud = torch.cat((points, colors), dim=1)
458
+
459
+ dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
460
+ feature_point_cloud_list.append(feature_point_cloud)
461
+ feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
462
+ dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
463
+ return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
464
+
465
+ def downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts=1024,k_nearest_neighbors=100, instance_points=None):
466
+ #N_1, C_1 = 2048, 384 # Example number of points and features
467
+ num_points_to_sample = num_pts
468
+ k_nearest_neighbors = k_nearest_neighbors
469
+
470
+ # Example input pointcloud and features (N_1, C_1), where N_1 is the number of points and C_1 is the feature dimension
471
+ pointcloud = feature_point_cloud[None,:,:3].cuda(0) # Shape (1, N_1, 3) for 3D coordinates
472
+ features = feature_point_cloud[None,:,3:].cuda(0) # Shape (1, N_1, C_1) for features
473
+
474
+ # Step 1: FPS to downsample the points
475
+ # We use sample_farthest_points to select num_points_to_sample points
476
+ sampled_points, sampled_indices = sample_farthest_points(pointcloud, K=num_points_to_sample) # Shape: (1, 1024, 3), (1, 1024)
477
+ if instance_points is not None:
478
+ sampled_points = instance_points
479
+
480
+ # Step 2: KNN to find nearest neighbors
481
+ # Find the k nearest neighbors for each sampled point in the original pointcloud
482
+ dists, knn_indices, _ = knn_points(sampled_points, pointcloud, K=k_nearest_neighbors, return_nn=False)
483
+
484
+ # Step 3: Gather the features of the k-nearest neighbors using the knn indices
485
+ # Use knn_gather to get neighbor features for each sampled point
486
+ neighbor_features = knn_gather(features, knn_indices) # Shape: (1, 1024, k, C_1)
487
+
488
+ # Step 4: Aggregate features from the neighbors (e.g., by averaging)
489
+ #aggregated_features,_ = torch.max(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
490
+ aggregated_features = torch.mean(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
491
+ return sampled_points, aggregated_features
492
+
493
+
494
+ def vis_pca(feature):
495
+ n_components=3 # the first component is to seperate the object from the background
496
+
497
+ pca = sklearnPCA(n_components=n_components)
498
+ feature = pca.fit_transform(feature.detach().cpu().numpy())
499
+ for show_channel in range(n_components):
500
+ # min max normalize the feature map
501
+ feature[:, show_channel] = (feature[:, show_channel] - feature[:, show_channel].mean()) / (feature[:, show_channel].std()*10)
502
+ feature_resized = np.clip(feature[:,:]+0.5,0,1)
503
+ return feature_resized
504
+
505
+ def patch2pixel_feats(patch_features, original_size):
506
+ """
507
+ 修改版:自动根据 T(patch 数量)和原图比例推算 (Hp, Wp)
508
+ """
509
+ H, W = original_size
510
+ B = patch_features.shape[0]
511
+ T = patch_features.shape[2]
512
+ C = patch_features.shape[3]
513
+
514
+ # ✅ 【修改1】自动寻找 (Hp, Wp),而不是用 sqrt(T)
515
+ aspect = H / W
516
+ best = None
517
+ for h in range(1, int(math.sqrt(T)) + 1):
518
+ if T % h == 0:
519
+ w = T // h
520
+ for hh, ww in [(h, w), (w, h)]:
521
+ score = abs((hh / ww) - aspect)
522
+ if best is None or score < best[2]:
523
+ best = (hh, ww, score)
524
+ Hp, Wp, _ = best # 比如 27, 25
525
+
526
+ # ✅ 【修改2】用 Hp, Wp 替代 num_patches
527
+ patch_features = patch_features.reshape(B, Hp, Wp, C)
528
+
529
+ # ✅ 【修改3】后面不变
530
+ patch_features = patch_features.permute(0, 3, 1, 2)
531
+ pixel_features = F.interpolate(
532
+ patch_features, size=(H, W), mode='bilinear', align_corners=False
533
+ )
534
+ pixel_features = pixel_features.squeeze().permute(1, 2, 0)
535
+
536
+ return pixel_features
537
+
538
+ def vis_pca_pixelwise(feature):
539
+ n_components = 4 # The number of PCA components to use
540
+ batch, feat_dim, height,width = feature.shape
541
+
542
+ # Reshape the feature to (num_pixels, feat_dim)
543
+ num_pixels = height * width
544
+ feature_reshaped = np.array(feature).transpose(0,2,3,1).reshape(-1, feat_dim)
545
+
546
+
547
+ # Apply PCA
548
+ pca = sklearnPCA(n_components=n_components)
549
+ feature_pca = pca.fit_transform(feature_reshaped)
550
+
551
+ # Min-max normalization for each component
552
+ # for show_channel in range(n_components):
553
+ # feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].min()) / \
554
+ # (feature_pca[:, show_channel].max() - feature_pca[:, show_channel].min() + 1e-8) # Small epsilon to avoid division by zero
555
+ for show_channel in range(n_components):
556
+ feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].mean()) / \
557
+ (feature_pca[:, show_channel].std()*10 + 1e-8) # Small epsilon to avoid division by zero
558
+
559
+ feature_pca = np.clip(feature_pca+0.5, 0, 1)
560
+ # Reshape the PCA result back to (height, width, n_components)
561
+ feature_resized = feature_pca.reshape(batch,height,width,n_components)[...,1:4]
562
+ return feature_resized
563
+
564
+ def normalize_mesh_verts(data):
565
+ # data [N, 3]
566
+ min_vals, _ = torch.min(data, dim=0)
567
+ max_vals, _ = torch.max(data, dim=0)
568
+ bbox_sizes = max_vals - min_vals
569
+ scale = torch.norm(bbox_sizes)
570
+ # print("Scale:", scale)
571
+ normalized_verts = verts / scale
572
+ return normalized_verts
573
+
574
+ def plot_pointclouds_with_color_mapping(pc1_f, pc2_f,pc1,pc2, query_points, similarity_threshold=None):
575
+ """
576
+ Visualizes two 3D point clouds. The second point cloud (pc2) is color-mapped
577
+ using the 'viridis' colormap based on its similarity (proximity) to the sampled
578
+ query points in the first point cloud (pc1).
579
+
580
+ Parameters:
581
+ - pc1: np.ndarray of shape (N, 3), first point cloud #partial
582
+ - pc2: np.ndarray of shape (M, 3), second point cloud # global
583
+ - query_points: list of indices in pc1, representing the query points to compare.
584
+ - similarity_threshold: float, optional, threshold to cap the similarity distance.
585
+ """
586
+
587
+
588
+ pc1_f = pc1_f / np.linalg.norm(pc1_f, axis=1)[:, None] # Normalize the features
589
+ pc2_f = pc2_f / np.linalg.norm(pc2_f, axis=1)[:, None] # Normalize the features
590
+ # Create a figure with subplots
591
+ fig = plt.figure(figsize=(12, 10))
592
+ num_query_points = len(query_points)
593
+ # Set limits and labels
594
+ size = pc2.max() - pc2.min()
595
+ # Plot the first point cloud in the first subplot
596
+ ax1 = fig.add_subplot(1, num_query_points + 1, 1, projection='3d')
597
+ ax1.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color='grey', label='Point Cloud 1 (Left)', alpha=0.1,s=10)
598
+
599
+ # Define a color list for each query point
600
+ query_colors = cm.tab10(np.linspace(0, 1, num_query_points)) # Use tab10 colormap for distinct colors
601
+
602
+ # Highlight query points in pc1 with different colors
603
+ for i, idx in enumerate(query_points):
604
+ ax1.scatter(pc1[idx, 0], pc1[idx, 1], pc1[idx, 2],
605
+ color=query_colors[i], s=100, edgecolor='k', label=f'Query Point {idx}')
606
+
607
+ ax1.set_title('Point Cloud 1 with Query Points')
608
+ ax1.set_xlabel('X')
609
+ ax1.set_ylabel('Y')
610
+ ax1.set_zlabel('Z')
611
+ ax1.set_xlim(-size / 1.4, size / 1.4)
612
+ ax1.set_ylim(-size / 1.4, size / 1.4)
613
+ ax1.set_zlim(-size / 1.4, size / 1.4)
614
+ ax1.view_init(elev=45, azim=-45)
615
+ ax1.grid(True)
616
+ ax1.legend()
617
+
618
+ # Plot the second point cloud in the subsequent subplots
619
+ for k in range(num_query_points):
620
+
621
+ ax = fig.add_subplot(1, num_query_points + 1, k + 2, projection='3d')
622
+
623
+ # Calculate distances between query points in pc1 and all points in pc2
624
+ similarity =(pc1_f[query_points[k]][None]@ pc2_f.T).reshape(-1) # (1, 3) x (M, 3) = (1, M)
625
+ # For each point in pc2, take the minimum distance to any query point
626
+ min_similarity = np.min(similarity, axis=0)
627
+ # Optionally cap the similarity distances to a threshold (to avoid extreme values)
628
+ similarity_threshold= 0.3
629
+ if similarity_threshold is not None:
630
+ similarity = np.clip(similarity, similarity_threshold,1)
631
+ # Normalize the distances to a range of 0 to 1 for colormap mapping
632
+ similarity = (similarity - np.min(similarity)) / (np.max(similarity) - np.min(similarity))
633
+ colors = cm.plasma(similarity)
634
+
635
+ # Plot the second point cloud with color mapping based on similarity
636
+ ax.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color=colors, s=15, alpha=1.0, label='Point Cloud 2 (Right)', edgecolor='k')
637
+
638
+ ax.set_xlim(-size / 1.4, size / 1.4)
639
+ ax.set_ylim(-size / 1.4, size / 1.4)
640
+ ax.set_zlim(-size / 1.4, size / 1.4)
641
+ ax.set_title(f'QP_{query_points[k]}')
642
+ ax.set_xlabel('X')
643
+ ax.set_ylabel('Y')
644
+ ax.set_zlabel('Z')
645
+ ax.view_init(elev=45, azim=-45)
646
+ ax.grid(True)
647
+ ax.legend()
648
+
649
+ # Show the plot
650
+ plt.tight_layout()
651
+ plt.show()
652
+
653
+
654
+ def plot_pointclouds_3d_with_copca_old(global_sem_pcd, partial_sem_pcd, global_pcd, partial_pcd):
655
+ """
656
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
657
+
658
+ Parameters:
659
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
660
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
661
+ """
662
+
663
+
664
+ n_components = 3
665
+ # Step 1: Perform PCA on both global and partial point clouds
666
+ sem_pca = PCA(n_components=n_components)
667
+ sem_pca = sem_pca.fit(global_sem_pcd) # shape (N+M, 3)
668
+
669
+ transformed_sem_pcd_list = [sem_pca.transform(pcd) for pcd in [global_sem_pcd,partial_sem_pcd]]
670
+ sem_pcd_pca = np.concatenate(transformed_sem_pcd_list,axis=0)
671
+ for show_channel in range(n_components):
672
+ sem_pcd_pca[:, show_channel] = (sem_pcd_pca[:, show_channel] - sem_pcd_pca[:, show_channel].mean()) / \
673
+ (sem_pcd_pca[:, show_channel].std()*5 + 1e-8) # Small epsilon to avoid division by zero
674
+
675
+ # sem_pcd_pca_min = sem_pcd_pca.min()
676
+ # sem_pcd_pca_max = sem_pcd_pca.max()
677
+ # sem_pcd_pca = (sem_pcd_pca- sem_pcd_pca_min) / (sem_pcd_pca_max - sem_pcd_pca_min) # Normalize to [0, 1]
678
+
679
+ sem_pcd_pca = np.clip(sem_pcd_pca[:,:]+0.5, 0, 1)
680
+ global_pca = sem_pcd_pca[:global_sem_pcd.shape[0]] # shape (N, 3)
681
+ partial_pca = sem_pcd_pca[-partial_sem_pcd.shape[0]:] # shape (M, 3)
682
+
683
+ # Step 2: Create a 3D scatter plot
684
+ fig = plt.figure(figsize=(12, 6))
685
+ ax = fig.add_subplot(121, projection='3d')
686
+
687
+
688
+ # Global point cloud
689
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
690
+ c=global_pca, marker='o', s=100, alpha=1.0, label='Global Point Cloud')
691
+
692
+ # Set labels for each axis
693
+ # ax.set_xlabel('X axis')
694
+ # ax.set_ylabel('Y axis')
695
+ # ax.set_zlabel('Z axis')
696
+ ax.set_xlim(-0.5, 0.5)
697
+ ax.set_ylim(-0.5, 0.5)
698
+ ax.set_zlim(-0.5, 0.5)
699
+
700
+ ax1 = fig.add_subplot(122, projection='3d')
701
+
702
+ # Partial point cloud
703
+ ax1.scatter(partial_pcd[:, 0], partial_pcd[:, 1], partial_pcd[:, 2],
704
+ c=partial_pca, marker='o', s=100, alpha=1.0, label='Partial Point Cloud')
705
+
706
+ # ax1.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
707
+ # marker='o', s=10, alpha=0.1)
708
+ # Set labels for each axis
709
+ # ax1.set_xlabel('X axis')
710
+ # ax1.set_ylabel('Y axis')
711
+ # ax1.set_zlabel('Z axis')
712
+
713
+
714
+ ax1.set_xlim(-0.5, 0.5)
715
+ ax1.set_ylim(-0.5, 0.5)
716
+ ax1.set_zlim(-0.5, 0.5)
717
+ plt.tight_layout()
718
+
719
+ ax.view_init(120,-95)
720
+ ax1.view_init(120,-95)
721
+
722
+
723
+ ax.set_axis_off()
724
+ ax.set_facecolor((0, 0, 0, 0))
725
+ ax1.set_axis_off()
726
+ ax1.set_facecolor((0, 0, 0, 0))
727
+
728
+ plt.show()
729
+
730
+
731
+ def plot_pointclouds_3d_with_pca(global_sem_pcd, global_pcd):
732
+ """
733
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
734
+
735
+ Parameters:
736
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
737
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
738
+ """
739
+ #sem_pcd = np.concatenate((global_sem_pcd,partial_sem_pcd), axis=0) # shape (N+M, D)
740
+
741
+ # Step 1: Perform PCA on both global and partial point clouds
742
+ sem_pca = PCA(n_components=3)
743
+ sem_pcd_pca = sem_pca.fit_transform(global_sem_pcd) # shape (N+M, 3)
744
+
745
+ for i in range(3): # Iterate over each component (3 in total for RGB)
746
+ sem_pcd_pca_mean = sem_pcd_pca[:, i].mean()
747
+ sem_pcd_pca_std = sem_pcd_pca[:, i].std()
748
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - sem_pcd_pca_mean) / (sem_pcd_pca_std*5+1e-8) # Normalize to [0, 1]
749
+
750
+
751
+ global_pca = np.clip(sem_pcd_pca+0.5,0,1)
752
+ # scatter plot
753
+ fig = plt.figure(figsize=(6, 6))
754
+ ax = fig.add_subplot(111, projection='3d')
755
+
756
+ # Global point cloud
757
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
758
+ c=global_pca, marker='o', s=50, alpha=1.0, label='Global Point Cloud')
759
+
760
+ # Remove axes and background
761
+ ax.set_axis_off()
762
+
763
+ # Set background color to none
764
+ ax.set_facecolor((0, 0, 0, 0))
765
+ # # Set labels for each axis
766
+ # ax.set_xlabel('X axis')
767
+ # ax.set_ylabel('Y axis')
768
+ # ax.set_zlabel('Z axis')
769
+ ax.set_xlim(-0.5, 0.5)
770
+ ax.set_ylim(-0.5, 0.5)
771
+ ax.set_zlim(-0.5, 0.5)
772
+
773
+ ax.view_init(-73,102)
774
+
775
+ return fig
776
+
777
+
778
+ def plot_pointclouds_3d_with_copca(global_sem_pcd_list, global_pcd_list,co_pca=True):
779
+ """
780
+ Visualizes multiple point clouds in 3D, each in a separate subplot, after applying CoPCA.
781
+ Coloring them based on their PCA components.
782
+
783
+ Parameters:
784
+ - global_sem_pcd_list: list of numpy arrays for semantic point clouds (one per object).
785
+ - global_pcd_list: list of numpy arrays for global point clouds (one per object).
786
+ """
787
+ num_pcds = len(global_sem_pcd_list) # Number of point clouds
788
+ # Step 1: Perform CoPCA (Common PCA) on the semantic point clouds
789
+ # Concatenate all point clouds to perform common PCA
790
+ if co_pca:
791
+ concatenated_pcds = np.concatenate(global_sem_pcd_list, axis=0) # shape (N_total, D)
792
+ copca = PCA(n_components=3, random_state=0)
793
+ copca.fit(concatenated_pcds[:1024]) # Fit PCA on all point clouds together
794
+ transformed_sem_pcd_list = [copca.transform(pcd) for pcd in global_sem_pcd_list]
795
+
796
+
797
+ signs = np.sign(np.sum(transformed_sem_pcd_list[0], axis=0))
798
+ # Post-process to ensure consistent orientation of PCA components
799
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
800
+ # For each component (column), align sign based on the sum of values in the column
801
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
802
+ else:
803
+ copca = PCA(n_components=3)
804
+ transformed_sem_pcd_list = [copca.fit_transform(pcd) for pcd in global_sem_pcd_list]
805
+ # Post-process to ensure consistent orientation of PCA components
806
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
807
+ signs = np.sign(np.sum(transformed_pcd, axis=0))
808
+ # For each component (column), align sign based on the sum of values in the column
809
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
810
+
811
+
812
+
813
+ # Create a figure with subplots arranged in a grid (based on number of point clouds)
814
+ fig = plt.figure(figsize=(6 * num_pcds, 6)) # Adjust figure size based on the number of subplots
815
+
816
+ # Loop over the point clouds
817
+ for idx, (sem_pcd_pca, global_pcd) in enumerate(zip(transformed_sem_pcd_list, global_pcd_list)):
818
+ ax = fig.add_subplot(1, num_pcds, idx + 1, projection='3d')
819
+
820
+ # Step 2: Normalize the PCA-transformed data to use as colors
821
+ for i in range(3): # Iterate over each component (3 in total for RGB)
822
+ pca_mean = sem_pcd_pca[:, i].mean()
823
+ pca_std = sem_pcd_pca[:, i].std()
824
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - pca_mean) / (pca_std * 5 + 1e-8) # Normalize
825
+
826
+ global_pca_colors = np.clip(sem_pcd_pca + 0.5, 0, 1) # Map to [0, 1] for RGB
827
+
828
+ # Scatter plot for this point cloud in the current subplot
829
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
830
+ c=global_pca_colors, marker='o', s=10, alpha=1.0)
831
+
832
+ # Remove axes and background
833
+ ax.set_axis_off()
834
+ ax.set_facecolor((0, 0, 0, 0))
835
+
836
+ # Set axis limits for each subplot
837
+ ax.set_xlim(-0.5, 0.5)
838
+ ax.set_ylim(-0.5, 0.5)
839
+ ax.set_zlim(-0.5, 0.5)
840
+
841
+ # Set view angle
842
+ ax.view_init(-73, 102)
843
+
844
+ # Adjust spacing between subplots
845
+ plt.tight_layout()
846
+
847
+ return fig
848
+
849
+
850
+
851
+ def unnormalize(x):
852
+ # x.shape : [H,W,3]
853
+ mean = np.array([0.485, 0.456, 0.406])
854
+ std = np.array([0.229, 0.224, 0.225])
855
+ return x * std + mean
856
+
857
+ def parse_object_name(folder_name):
858
+ """
859
+ Parse folder name to extract category and instance name.
860
+
861
+ Examples:
862
+ google_scan-backpack_0288 -> category: backpack, instance: backpack_0288
863
+ omniobject3d-hammer_001 -> category: hammer, instance: hammer_001
864
+
865
+ Args:
866
+ folder_name: Name of the folder containing the mesh
867
+
868
+ Returns:
869
+ category: Object category
870
+ instance_name: Full instance name (category_id)
871
+ """
872
+ # Split by '-' to remove prefix (google_scan, omniobject3d, etc.)
873
+ if '-' in folder_name:
874
+ parts = folder_name.split('-', 1)
875
+ object_part = parts[1]
876
+ else:
877
+ object_part = folder_name
878
+
879
+ # Split by '_' to get category and id
880
+ parts = object_part.rsplit('_', 1)
881
+
882
+ if len(parts) == 2:
883
+ category = parts[0]
884
+ object_id = parts[1]
885
+ instance_name = f"{category}_{object_id}"
886
+ else:
887
+ # Fallback if no underscore found
888
+ category = object_part
889
+ instance_name = object_part
890
+
891
+ return category, instance_name
892
+
893
+ def find_original_folder(instance_name, dirlist):
894
+ """
895
+ Find the original folder name that corresponds to the given instance name.
896
+
897
+ Args:
898
+ instance_name (str): e.g. 'backpack_0288'
899
+ dirlist (list[str]): list of all folder names
900
+
901
+ Returns:
902
+ str or None: matching folder name (e.g. 'google_scan-backpack_0288') or None if not found
903
+ """
904
+ for folder in dirlist:
905
+ if instance_name in folder:
906
+ return folder
907
+ return None
908
+
909
+ def load_ply_as_obj(ply_path, device="cpu"):
910
+ """
911
+ Return (verts, faces, aux) in a PyTorch3D-OBJ-like shape for .ply files.
912
+
913
+ - faces: .verts_idx (F,3) long, .normals_idx None, .textures_idx (F,3) or None
914
+ - aux: .verts_uvs (V,2) float or None,
915
+ .normals (V,3) float or None,
916
+ .texture_images {material_name: img_tensor(H,W,3) in [0,1]},
917
+ .materials [material_name, ...],
918
+ .material_colors None
919
+ """
920
+ ply_path = Path(ply_path)
921
+ ply = PlyData.read(str(ply_path))
922
+
923
+ # ---- vertices ----
924
+ v = ply["vertex"].data # structured ndarray
925
+ verts_np = np.column_stack([v["x"], v["y"], v["z"]]).astype(np.float32)
926
+ verts = torch.from_numpy(verts_np).to(device)
927
+
928
+ # ---- faces (triangles only) ----
929
+ faces_raw = ply["face"].data["vertex_indices"] # array of python lists
930
+ tri = [idx for idx in faces_raw if len(idx) == 3]
931
+ faces_idx = torch.as_tensor(np.asarray(tri, dtype=np.int64), device=device)
932
+
933
+ faces = SimpleNamespace()
934
+ faces.verts_idx = faces_idx
935
+ faces.normals_idx = None
936
+ faces.textures_idx = None # will mirror verts_idx if UVs exist
937
+
938
+ # ---- aux ----
939
+ aux = SimpleNamespace()
940
+ names = v.dtype.names
941
+
942
+ # per-vertex normals (optional)
943
+ if {"nx", "ny", "nz"}.issubset(names):
944
+ normals_np = np.column_stack([v["nx"], v["ny"], v["nz"]]).astype(np.float32)
945
+ aux.normals = torch.from_numpy(normals_np).to(device)
946
+ else:
947
+ aux.normals = None
948
+
949
+ # per-vertex UVs (optional)
950
+ if {"texture_u", "texture_v"}.issubset(names):
951
+ uvs_np = np.column_stack([v["texture_u"], v["texture_v"]]).astype(np.float32)
952
+ aux.verts_uvs = torch.from_numpy(uvs_np).to(device)
953
+ faces.textures_idx = faces.verts_idx.clone()
954
+ else:
955
+ aux.verts_uvs = None
956
+
957
+ # texture image(s) from header comment like: "comment TextureFile obj_000400.png"
958
+ texture_images = {}
959
+ materials = []
960
+
961
+ for c in getattr(ply, "comments", []):
962
+ c = c.strip()
963
+ if c.lower().startswith("texturefile"):
964
+ # e.g. "TextureFile obj_000400.png"
965
+ parts = c.split(None, 1)
966
+ if len(parts) == 2:
967
+ tex_name = parts[1].strip()
968
+ tex_path = (ply_path.parent / tex_name)
969
+ if tex_path.exists():
970
+ try:
971
+ img = Image.open(tex_path).convert("RGB")
972
+ arr = np.asarray(img, dtype=np.float32) / 255.0 # H,W,3
973
+ texture_images["default"] = torch.from_numpy(arr) # dict value is tensor
974
+ materials.append("default")
975
+ except Exception:
976
+ pass # if unreadable, just skip
977
+
978
+ aux.texture_images = texture_images # DICT, not list
979
+ aux.materials = materials # keep order aligned with dict keys
980
+ aux.material_colors = None
981
+
982
+ return verts, faces, aux
983
+
984
+ def load_models_info(models_info_path):
985
+ """
986
+ Build mapping: index(int) -> (category:str, instance:str)
987
+
988
+ Rules:
989
+ - "clip/002/link1" -> category="clip-link1", instance="002"
990
+ - "bottle/003" -> category="bottle", instance="003"
991
+ - "hammer" -> category="hammer", instance="unknown"
992
+ Fallbacks:
993
+ - If 3+ segments but the 2nd isn't purely digits, we pick the first all-digit token as instance.
994
+ - If no digit token found, instance="unknown".
995
+ """
996
+ with open(models_info_path, "r") as f:
997
+ data = json.load(f)
998
+
999
+ def is_digits(s: str) -> bool:
1000
+ return re.fullmatch(r"\d+", s) is not None
1001
+
1002
+ mapping = {}
1003
+ for k, v in data.items():
1004
+ # Keys in JSON might be "0".."1260" (str) or int.
1005
+ try:
1006
+ idx = int(k)
1007
+ except Exception:
1008
+ continue
1009
+
1010
+ identifier = v.get("identifier", "")
1011
+ if "/" in identifier:
1012
+ identifier = (v.get("identifier") or "").strip()
1013
+ parts = [p for p in identifier.split('/') if p]
1014
+ if len(parts) == 3:
1015
+ # first + last for category, middle should be the numeric id
1016
+ cat_first, cat_last = parts[0], parts[-1]
1017
+ category = f"{cat_first}-{cat_last}"
1018
+ mid = parts[1]
1019
+ if is_digits(mid):
1020
+ instance = mid
1021
+ else:
1022
+ instance = "unknown"
1023
+ elif len(parts) == 2:
1024
+ category = parts[0]
1025
+ if is_digits(parts[1]):
1026
+ instance = parts[1]
1027
+ else:
1028
+ instance = "unknown"
1029
+ mapping[idx] = (category, instance)
1030
+ else:
1031
+ # Fallback: whole identifier as category, instance unknown
1032
+ mapping[idx] = (identifier, "unknown")
1033
+ return mapping
1034
+
1035
+ def load_trans2canon(json_path):
1036
+ """
1037
+ Load pace_convert.json and return a mapping:
1038
+ name(str) -> 4x4 numpy array
1039
+ Expects top-level key 'trans2canon'.
1040
+ """
1041
+ with open(json_path, 'r') as f:
1042
+ data = json.load(f)
1043
+ tdict = data.get("trans2canon", {})
1044
+ out = {}
1045
+ for k, v in tdict.items():
1046
+ M = np.asarray(v, dtype=float)
1047
+ if M.shape == (3, 3):
1048
+ out[k] = M
1049
+ else:
1050
+ raise ValueError(f"trans2canon[{k}] is not 3x3, got {M.shape}")
1051
+ return out
1052
+
1053
+ def lookup_transform(category, trans_map):
1054
+ """
1055
+ Try several name variants to find a transform for this category.
1056
+ Returns 4x4 np.ndarray if found, else None.
1057
+ """
1058
+ if category in trans_map:
1059
+ return trans_map[category]
1060
+ cat_safe = category.strip().replace(" ", "_")
1061
+ cat_safe = cat_safe.replace("-", "/")
1062
+ if cat_safe in trans_map:
1063
+ return trans_map[cat_safe]
1064
+ cat_lower = category.lower()
1065
+ if cat_lower in trans_map:
1066
+ return trans_map[cat_lower]
1067
+ cat_lower_safe = cat_lower.replace(" ", "_")
1068
+ return trans_map.get(cat_lower_safe, None)
1069
+
1070
+ def extract_index_from_fname(path: Path):
1071
+ """
1072
+ From 'obj_000123.ply' -> 123 (int).
1073
+ Works with any digits after 'obj_'.
1074
+ """
1075
+ m = re.match(r"obj_(\d+)\.", path.name)
1076
+ if not m:
1077
+ return None
1078
+ return int(m.group(1))
1079
+
1080
+ def load_ply_with_rotation(ply_path, R=None, device="cpu"):
1081
+ """
1082
+ Load a .ply mesh and optionally apply a 3x3 rotation matrix R.
1083
+ Returns (verts, faces, aux) in PyTorch3D-like format.
1084
+
1085
+ - ply_path: str or Path to the .ply file
1086
+ - R: 3x3 rotation tensor or ndarray (optional)
1087
+ - device: CPU or CUDA
1088
+ """
1089
+ # --- 1. Load mesh using your existing loader ---
1090
+ verts, faces, aux = load_ply_as_obj(ply_path, device=device)
1091
+
1092
+ # --- 2. Apply rotation if provided ---
1093
+ if R is not None:
1094
+ if not torch.is_tensor(R):
1095
+ R = torch.as_tensor(R, dtype=torch.float32)
1096
+ R = R.to(device).float()
1097
+
1098
+ # v' = v @ R^T (if R is column-major, which is the usual math convention)
1099
+ verts = verts @ R.T
1100
+
1101
+ if getattr(aux, "normals", None) is not None:
1102
+ aux.normals = aux.normals @ R.T
1103
+ aux.normals = torch.nn.functional.normalize(aux.normals, dim=1)
1104
+
1105
+ # --- 3. Return transformed mesh ---
1106
+ return verts, faces, aux
1107
+
1108
+ from custom_utils.housecat6d_dataset import HouseCat6DTrainingDataset
1109
+ # trainset = HouseCat6DTrainingDataset(image_size=420, sample_num=1024,data_dir='/media/hyunjun/NewDisk1/weihang/HouseCat6D')
1110
+
1111
+ vis = True
1112
+ device = "cuda"
1113
+
1114
+ cat = 'glass'
1115
+ #cat_list = ['bottle','box','can','cup','cutlery','remote','shoe','tube','teapot']
1116
+ #cat_list = ['bottle']
1117
+
1118
+
1119
+ #cat_list = ['teapot']
1120
+ cat_list = ['bottle','box','can','cup','cutlery','glass','remote','shoe','tube','teapot']
1121
+ sem_global_list = []
1122
+ sem_global_pcd_list = []
1123
+
1124
+ save_dir = './wlcop'
1125
+ if False:
1126
+ for cat in cat_list:
1127
+ sem_global_list = []
1128
+ sem_global_pcd_list = []
1129
+ with open(f'/home/xyz/anything6d_project/Datasets/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
1130
+ instances = [line.strip() for line in f.readlines()]
1131
+
1132
+ print(instances)
1133
+
1134
+ # Load the mean shape point cloud
1135
+ meanshape_path = f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
1136
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
1137
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
1138
+ M = meanshape_pcd_tensor.shape[0]
1139
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float()
1140
+ average_aggregated_features = torch.load(f'{save_dir}/sem_cat_pcd_tex/{cat}_dino_feature.pt')
1141
+ sem_global_pcd_list.append(meanshape_points[0])
1142
+ sem_global_list.append(average_aggregated_features[0].detach().cpu())
1143
+ #fig =plot_pointclouds_3d_with_pca(average_aggregated_features[0].detach().cpu(),meanshape_points[0])
1144
+ #fig.savefig('test.png')
1145
+ for j,instance in enumerate(instances):
1146
+
1147
+
1148
+ print("Processing", instance)
1149
+ obj_path = f'/media/xyz/data/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
1150
+ instance_pcd_path = f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/saved_pcd/{cat}/test/{instance}.txt'
1151
+
1152
+ # Load the instance point cloud
1153
+ instance_pcd_np = np.loadtxt(instance_pcd_path)
1154
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
1155
+ N = instance_pcd_tensor.shape[0]
1156
+ instance_points = instance_pcd_tensor.view(1, N, 3).float()
1157
+ try:
1158
+ aggregated_features = torch.load(f'{save_dir}/saved_dino_pcd_tex/{cat}/{instance}_dino_feature.pt')
1159
+ except:
1160
+ continue
1161
+ # plot_pointclouds_3d_with_pca(aggregated_features[0].detach().cpu(),
1162
+ # instance_points[0])
1163
+ sem_global_pcd_list.append(instance_points[0])
1164
+ sem_global_list.append(aggregated_features[0].detach().cpu())
1165
+ if j>6:
1166
+ break
1167
+
1168
+ plot_pointclouds_3d_with_copca(sem_global_list,sem_global_pcd_list,co_pca=True)
1169
+ plt.show()
1170
+ plt.close()
1171
+ a
1172
+
1173
+
1174
+ # model_dict={'small':'dinov2_vits14',
1175
+ # 'base':'dinov2_vitb14',
1176
+ # 'large':'dinov2_vitl14',
1177
+ # 'giant':'dinov2_vitg14'}
1178
+ # extractor = ViTExtractor(model_dict['small'],14)
1179
+ # extractor.model = extractor.model.cuda(0) # the stride of first conv control outputs resolution
1180
+
1181
+ # TODO: Change extractor model to dinov3
1182
+ # 1) Build a ViT-S/16 backbone from timm (shape-compatible with your hooks)
1183
+ extractor = DINOv3ExtractorAdapter(
1184
+ model_id="facebook/dinov3-vits16-pretrain-lvd1689m", # ViT-S/16
1185
+ device="cuda"
1186
+ )
1187
+ extractor.model = extractor.model.cuda(0)
1188
+ # End TODO
1189
+
1190
+ # --- 加载元数据 ---
1191
+ metadata_path = os.path.join("/media/hyunjun/NewDisk1/Datasets/wlcop/raw", "metadata.json")
1192
+ if not os.path.exists(metadata_path):
1193
+ raise FileNotFoundError("metadata.json not found. Please run create_metadata.py first.")
1194
+ with open(metadata_path, "r") as f:
1195
+ metadata_dict = json.load(f)
1196
+ # --- 构建有序的路径列表 (self.all_paths),这部分保持不变 ---
1197
+ path_to_idx = {path: int(index) for index, path in metadata_dict.items()}
1198
+
1199
+
1200
+ # load mean shape
1201
+ meanshap_path = "/media/hyunjun/NewDisk1/weihang/deep-linear-shapes/runs/wlcop173_supervisedK173_Affine_3/last_epoch_linearshape_model.pkl"
1202
+ # obj = torch.load(meanshap_path, map_location="cpu", weights_only=False)
1203
+ with open(meanshap_path, "rb") as f:
1204
+ pickle_data = pickle.load(f)
1205
+ # Convert to tensor dictionary
1206
+ id2meanshape_pcd_tensor = {
1207
+ i: torch.tensor(v["pos"]) for i, v in pickle_data.items() if v["pos"] is not None
1208
+ }
1209
+
1210
+
1211
+ # load id to name mapping
1212
+ shape_file = "/media/hyunjun/NewDisk1/Datasets/wlcop/raw/wlcop173_shape_names.txt"
1213
+ with open(shape_file, "r") as f:
1214
+ id2name = {i: line.strip() for i, line in enumerate(f) if line.strip()}
1215
+
1216
+ cat_list = [name for i, name in id2name.items() if name]
1217
+
1218
+
1219
+ # load source dir list of omni6d and pace
1220
+ omni6d_source_dir = "/media/hyunjun/NewDisk1/Omni6DPoseAPI/data/Omni6DPose/PAM/object_meshes"
1221
+ pace_source_dir = "/media/hyunjun/4ED38B1B5AFB74D5/PACE/models"
1222
+
1223
+ omni6d_dirlist = [
1224
+ os.path.join(omni6d_source_dir, d)
1225
+ for d in os.listdir(omni6d_source_dir)
1226
+ if os.path.isdir(os.path.join(omni6d_source_dir, d))
1227
+ ]
1228
+
1229
+ pace_dirlist = [
1230
+ os.path.join(pace_source_dir, d)
1231
+ for d in os.listdir(pace_source_dir)
1232
+ ]
1233
+
1234
+ # load the transformation matrix from pace to omni6d
1235
+ models_info_path = "/media/hyunjun/4ED38B1B5AFB74D5/PACE/models/models_info.json"
1236
+ id_map = load_models_info(models_info_path)
1237
+ trans_map = load_trans2canon("/media/hyunjun/NewDisk1/Datasets/pace_convert.json") # adjust path
1238
+
1239
+ #TODO: if condition for tex rendering
1240
+ for idx, cat in enumerate(cat_list):
1241
+
1242
+ if cat != 'drawing':
1243
+ continue
1244
+
1245
+ instances = [path for path in path_to_idx.keys() if cat == path.split('/')[-2]]
1246
+
1247
+ print(instances)
1248
+
1249
+ aggregated_features_list = [] # N * [1, 1024, 384]
1250
+ # Load the mean shape point cloud
1251
+ meanshape_pcd_tensor = id2meanshape_pcd_tensor[idx]
1252
+ M = meanshape_pcd_tensor.shape[0]
1253
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float().cuda(0)
1254
+
1255
+
1256
+ for j, instance in enumerate(instances):
1257
+ # if instance != 'bottle-85_alcool':
1258
+ # continue
1259
+ print("Processing", instance)
1260
+ instance_name = instance.split('/')[-1].replace('.txt','')
1261
+ # quickly check if the instance has been processed
1262
+ target_vis_file = f'{save_dir}/{cat}_rgb_dino/{instance_name}_dino.png'
1263
+ if os.path.exists(target_vis_file):
1264
+ aggregated_features_list.append(torch.load(f'{save_dir}/saved_dino_pcd_tex/{cat}/{instance_name}_dino_feature.pt'))
1265
+ # print(f"Skipping '{instance}', file already exists at: {target_vis_file}")
1266
+ continue # continue 会立即结束本次循环,进入下一次循环
1267
+
1268
+ obj_path = None # pcd file like .txt or .ply
1269
+ if "obj_" in instance.split('/')[-1]:
1270
+ name = instance.split('/')[-1].replace('.txt','.ply')
1271
+ obj_path = find_original_folder(name, pace_dirlist)
1272
+ else:
1273
+ name = instance.split('/')[-1].replace('.txt','')
1274
+ obj_path_base = find_original_folder(name, omni6d_dirlist)
1275
+ obj_path_base = Path(obj_path_base)
1276
+ obj_path = obj_path_base / 'Aligned.obj'
1277
+ if os.path.exists(obj_path):
1278
+ obj_path = os.path.join(omni6d_source_dir, obj_path)
1279
+ else:
1280
+ obj_path = list(obj_path_base.glob('*.obj'))[0]
1281
+ # obj_path = f'/media/hyunjun/NewDisk1/Datasets/wlcop/raw/{cat}/{instance}.obj'
1282
+ # instance_pcd_path = f'/media/hyunjun/NewDisk1/Datasets/wlcop/reconstructions/{cat}/{instance}.txt'
1283
+
1284
+ instance_pcd_path = instance.replace('.txt','.ply').replace('/raw/','/reconstructions/') # mesh file, like .obj, .ply
1285
+
1286
+ # Load the instance point cloud
1287
+ # instance_pcd_np = np.loadtxt(instance_pcd_path, delimiter=",")
1288
+ instance_pcd = o3d.io.read_point_cloud(instance_pcd_path)
1289
+ instance_pcd_np = np.asarray(instance_pcd.points) # shape (N, 3)
1290
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
1291
+ N = instance_pcd_tensor.shape[0]
1292
+ if N != 1024:
1293
+ print(f"Warning: {instance_name} has {N} points, expected 1024. Skipping.")
1294
+ continue
1295
+ instance_points = instance_pcd_tensor.view(1, N, 3).float().cuda(0)
1296
+
1297
+ try:
1298
+ suffix = Path(obj_path).suffix.lower() # works for both Path and str
1299
+
1300
+ if suffix == ".ply":
1301
+ idx = extract_index_from_fname(Path(obj_path))
1302
+ category, _ = id_map[idx]
1303
+ R = lookup_transform(category, trans_map)
1304
+ verts, faces, aux = load_ply_with_rotation(obj_path, R=R, device=device)
1305
+ elif suffix == ".obj":
1306
+ verts, faces, aux = load_obj(str(obj_path))
1307
+ except ValueError as e:
1308
+ print(f"Warning: {e}, attempting to load without material.")
1309
+
1310
+ try:
1311
+ if suffix == ".ply":
1312
+ vverts, faces, aux = load_ply_with_rotation(obj_path, R=R, device=device)
1313
+ elif suffix == ".obj":
1314
+ verts, faces, aux = load_obj(str(obj_path))
1315
+ except ValueError as e2:
1316
+ print(f"Failed to load {obj_path} without material: {e2}")
1317
+ continue
1318
+
1319
+ # 检查 verts_uvs 是否为 None
1320
+ if aux.verts_uvs is not None:
1321
+ verts_uvs = aux.verts_uvs[None, ...] # (1, V, 2)
1322
+ faces_uvs = faces.textures_idx[None, ...] # (1, F, 3)
1323
+ tex_maps = aux.texture_images
1324
+
1325
+ # tex_maps is a dictionary of {material name: texture image}.
1326
+ # Take the first image:
1327
+ # if tex_maps:
1328
+ # texture_image = list(tex_maps.values())[0]
1329
+ # texture_image = texture_image[None, ...] # (1, H, W, 3)
1330
+ dev = verts_uvs.device # the device we want everything on
1331
+ tex_maps = aux.texture_images # dict[str, Tensor(H,W,3)]
1332
+ if tex_maps:
1333
+ texture_image = list(tex_maps.values())[0]
1334
+ # ensure shape (1,H,W,3), dtype float32, device match
1335
+ if texture_image.dim() == 3:
1336
+ texture_image = texture_image.unsqueeze(0)
1337
+ texture_image = texture_image.to(dev).float().contiguous()
1338
+
1339
+ # Create a textures object
1340
+ tex = TexturesUV(verts_uvs=verts_uvs, faces_uvs=faces_uvs, maps=texture_image)
1341
+ else:
1342
+ # 如果 verts_uvs 是 None,直接跳过纹理处理,或者你可以设置默认行为
1343
+ print(f"No UV coordinates for {instance_name}, skipping texture mapping.")
1344
+ tex = None
1345
+
1346
+ # Initialise the mesh with textures
1347
+ verts = normalize_mesh_verts(verts) # Housecat meshes are absolute scale
1348
+ #meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
1349
+ meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=tex)
1350
+
1351
+
1352
+ if meshes.textures is None:
1353
+ meshes.textures = TexturesVertex(
1354
+ verts_features=torch.ones_like(meshes.verts_padded(), device=device)
1355
+ )
1356
+
1357
+ # render the mesh with 8 views, scale means the distance from the object to the camera
1358
+ image_size=(420,420)
1359
+ # images,fragments,cameras = render_batch(meshes,image_size=image_size,scale=2.0)
1360
+ images,fragments,cameras = render(meshes,image_size=image_size,scale=2.0)
1361
+
1362
+ # get the feature point cloud
1363
+ feature_point_cloud, dino_feat_masked, feature_point_cloud_list = fuse_feature_rgbd(extractor,images,fragments,cameras)
1364
+
1365
+ # get the downsampled aggregated feature point cloud
1366
+ num_pts= 1024
1367
+ nn_num= 1024 # larger nn_num will make the feature more smooth
1368
+ sampled_points,aggregated_features = downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts,nn_num,instance_points)
1369
+
1370
+ # #Needed
1371
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
1372
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1373
+ # partial_feature_point_cloud[index,3:],
1374
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
1375
+ # partial_feature_point_cloud[index,:3])
1376
+
1377
+
1378
+ q=0
1379
+
1380
+ os.makedirs(f'{save_dir}/saved_dino_pcd_tex/{cat}', exist_ok=True)
1381
+ torch.save(aggregated_features, f'{save_dir}/saved_dino_pcd_tex/{cat}/{instance_name}_dino_feature.pt')
1382
+
1383
+ aggregated_features_list.append(aggregated_features)
1384
+ # #break
1385
+ vis_dino = vis_pca_pixelwise(np.array(dino_feat_masked))
1386
+ vis_img = np.clip(vis_dino[:,:,:,:],a_min=0,a_max=1)
1387
+ image_grid(vis_img, rows=2, cols=4, rgb=True)
1388
+
1389
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino', exist_ok=True)
1390
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino/{instance_name}_dino.png')
1391
+ plt.close()
1392
+ if False:
1393
+
1394
+ rgb = images.cpu().numpy()[:, :, :, :3]
1395
+ mask = images[:, ..., 3].cpu().numpy()!=0
1396
+ depth_image = fragments[:, ..., 0].cpu().numpy()*mask
1397
+ image_grid(rgb, rows=1, cols=8, rgb=True)
1398
+ # os.makedirs(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino', exist_ok=True)
1399
+ # plt.savefig(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino/{instance}_rgb.png')
1400
+ # image_grid(depth_image[...,None], rows=2, cols=4, rgb=True)
1401
+ # image_grid(mask[...,None], rows=2, cols=4, rgb=True)
1402
+
1403
+
1404
+
1405
+ fig = plt.figure(figsize=(10, 10))
1406
+ ax = fig.add_subplot(111, projection="3d")
1407
+ #ax.scatter(sampled_points[:, 2], sampled_points[:,0], sampled_points[:, 1], c="b")
1408
+ pca_color =vis_pca(feature_point_cloud[:, 3:])
1409
+ ax.scatter(feature_point_cloud[:, 2], feature_point_cloud[:, 0], feature_point_cloud[:, 1], c=pca_color,s=0.1)
1410
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1411
+ ax.set_xlabel("z")
1412
+ ax.set_ylabel("x")
1413
+ ax.set_zlabel("y")
1414
+ ax.set_xlim(-2, 2)
1415
+ ax.set_ylim(-2, 2)
1416
+ ax.set_zlim(-2, 2)
1417
+ plt.title("Sampled Dense Points from Mesh")
1418
+ plt.show()
1419
+
1420
+ fig = plt.figure(figsize=(10, 10))
1421
+ ax = fig.add_subplot(111, projection="3d")
1422
+ pca_color =vis_pca(aggregated_features.squeeze(0))
1423
+ sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1424
+ ax.scatter(sampled_points[:, 2], sampled_points[:, 0], sampled_points[:, 1], c=pca_color,s=50)
1425
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1426
+ ax.set_xlabel("z")
1427
+ ax.set_ylabel("x")
1428
+ ax.set_zlabel("y")
1429
+ ax.set_xlim(-2, 2)
1430
+ ax.set_ylim(-2, 2)
1431
+ ax.set_zlim(-2, 2)
1432
+ plt.title("Sampled Sparse Points from Mesh")
1433
+ plt.show()
1434
+ #break
1435
+ # Assign the aggregated features to the mean shape point cloud
1436
+ if len(aggregated_features_list) == 0:
1437
+ print(f"No valid instances found for category {cat}, skipping saving average features.")
1438
+ continue
1439
+
1440
+ # quickly check if the category has been processed
1441
+ # target_feature_file = f'{save_dir}/sem_cat_pcd_tex/{cat}_dino_feature.pt'
1442
+ # if os.path.exists(target_feature_file):
1443
+ # # print(f"Skipping '{cat}', file already exists at: {target_feature_file}")
1444
+ # continue # continue 会立即结束本次循环,进入下一次循环
1445
+
1446
+ aggregated_features_tensor = torch.cat(aggregated_features_list, dim=0) #[N, 1024, 384]
1447
+ average_aggregated_features = aggregated_features_tensor.mean(dim=0, keepdim=True)
1448
+ print("Average Aggregated Features Shape:", average_aggregated_features.shape) # Should be (1, 1024, 384)
1449
+
1450
+ os.makedirs(f'{save_dir}/sem_cat_pcd_tex', exist_ok=True)
1451
+ torch.save(average_aggregated_features, f'{save_dir}/sem_cat_pcd_tex/{cat}_dino_feature.pt')
1452
+
1453
+ # fig = plt.figure(figsize=(10, 10))
1454
+ # ax = fig.add_subplot(111, projection="3d")
1455
+ # pca_color =vis_pca(average_aggregated_features.squeeze(0))
1456
+ # # sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1457
+ # meanshape_points = meanshape_points.squeeze(0).cpu().detach().numpy()
1458
+ # ax.scatter(meanshape_points[:, 2], meanshape_points[:, 0], meanshape_points[:, 1], c=pca_color,s=10.0, marker='o')
1459
+ # ax.set_xlabel("z")
1460
+ # ax.set_ylabel("x")
1461
+ # ax.set_zlabel("y")
1462
+ # ax.set_xlim(-2, 2)
1463
+ # ax.set_ylim(-2, 2)
1464
+ # ax.set_zlim(-2, 2)
1465
+ # plt.title("Shape Prior Dino")
1466
+ # plt.show()
1467
+
RGBD_DINO_HouseCat6D_final_copy.py ADDED
@@ -0,0 +1,1083 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import torch
2
+ from custom_utils import ShapeNetCore
3
+ from custom_utils import _compute_fov,_sample_points_from_faces
4
+ from custom_utils import image_grid
5
+ from custom_utils.shapenet_base import HouseCatDataset
6
+ import matplotlib.pyplot as plt
7
+ import numpy as np
8
+ import k3d
9
+ import os
10
+ import json
11
+ import torch
12
+ from PIL import Image
13
+
14
+ import cv2
15
+ import imageio
16
+ import numpy as np
17
+ from PIL import Image
18
+ import matplotlib.pyplot as plt
19
+ from torchvision import transforms
20
+ from custom_utils.extractor import ViTExtractor
21
+ import torch.nn.functional as F
22
+ from sklearn.decomposition import PCA as sklearnPCA
23
+ import math
24
+ from custom_utils.utils_general import center_crop
25
+
26
+ from pytorch3d.io import load_objs_as_meshes, load_obj
27
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
28
+ from pytorch3d.structures import Meshes
29
+ from pytorch3d.renderer import (
30
+ PerspectiveCameras,
31
+ FoVPerspectiveCameras,
32
+ PointLights,
33
+ MeshRasterizer,
34
+ MeshRenderer,
35
+ RasterizationSettings,
36
+ HardPhongShader,
37
+ TexturesVertex,
38
+ look_at_view_transform,
39
+ ray_bundle_to_ray_points,
40
+ NDCMultinomialRaysampler,
41
+ TexturesUV,
42
+ BlendParams,
43
+
44
+ TexturesVertex
45
+ )
46
+
47
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
48
+ from pytorch3d.structures import Pointclouds
49
+ import torch
50
+ from pytorch3d.ops import sample_farthest_points, knn_points, knn_gather
51
+
52
+ from matplotlib import cm
53
+ import numpy as np
54
+ import matplotlib.pyplot as plt
55
+ from sklearn.decomposition import PCA
56
+ from mpl_toolkits.mplot3d import Axes3D
57
+ import open3d as o3d
58
+
59
+
60
+ def sample_points_on_sphere(num_points=80):
61
+ points = []
62
+ phi = (1 + math.sqrt(5)) / 2 # golden ratio
63
+
64
+ for i in range(num_points):
65
+ theta = 2 * math.pi * i / phi # azimuthal angle
66
+ z = 1 - (2 * i + 1) / num_points # z-coordinate, uniform from -1 to 1
67
+ radius = math.sqrt(1 - z * z) # radius for the xy-plane
68
+ x = radius * math.cos(theta)
69
+ y = radius * math.sin(theta)
70
+ points.append([x, y, z])
71
+
72
+ return torch.tensor(points, dtype=torch.float32)
73
+
74
+ def get_cube_vertices():
75
+ # Cube vertices (8 vertices)
76
+ return torch.tensor([[1, 1, 1],
77
+ [1, 1, -1],
78
+ [1, -1, 1],
79
+ [1, -1, -1],
80
+ [-1, 1, 1],
81
+ [-1, 1, -1],
82
+ [-1, -1, 1],
83
+ [-1, -1, -1]], dtype=torch.float32) # Ensure float type
84
+
85
+
86
+ def render(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
87
+ # prepare the camera
88
+ num_views = 8
89
+ # Get the cube vertices
90
+ #cube_vertices = get_cube_vertices()*scale
91
+ cube_vertices = sample_points_on_sphere(num_views)*scale
92
+ #up = torch.randn(1, 3)
93
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
94
+ up = up / torch.norm(up, dim=1)[:, None]
95
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
96
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
97
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
98
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
99
+
100
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
101
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
102
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
103
+ in_ndc=False)
104
+
105
+ # prepare the lights
106
+ raster_settings = RasterizationSettings(image_size=image_size)
107
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None], ambient_color=(light,),diffuse_color=(light,),device=device)
108
+
109
+ # move the data to the device
110
+ meshes = meshes.to(device)
111
+ cameras = cameras.to(device)
112
+ if len(cameras) != 1 and len(cameras) % len(meshes) != 0:
113
+ raise ValueError("Mismatch between batch dims of cameras and meshes.")
114
+ if len(cameras) > 1:
115
+ meshes = meshes.extend(len(cameras) // len(meshes))
116
+
117
+ # prepare the renderer
118
+ class MeshRendererWithDepth(torch.nn.Module):
119
+ def __init__(self, rasterizer, shader):
120
+ super().__init__()
121
+ self.rasterizer = rasterizer
122
+ self.shader = shader
123
+
124
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
125
+ fragments = self.rasterizer(meshes_world, **kwargs)
126
+ images = self.shader(fragments, meshes_world, **kwargs)
127
+ return images, fragments.zbuf
128
+
129
+
130
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
131
+ renderer = MeshRendererWithDepth(
132
+ rasterizer=MeshRasterizer(
133
+ cameras=cameras,
134
+ raster_settings=raster_settings,
135
+ ),
136
+ # Set background color to blue [R, G, B]
137
+
138
+ shader=HardPhongShader(
139
+ device=device,
140
+ cameras=cameras,
141
+ lights=lights,
142
+ blend_params=blend_params
143
+ )
144
+ )
145
+
146
+ images,fragments = renderer(meshes)
147
+ return images,fragments,cameras
148
+
149
+
150
+ def render_batch(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
151
+ # prepare the camera
152
+ num_views = 8
153
+ # Get the cube vertices
154
+ cube_vertices = get_cube_vertices()*scale
155
+ #cube_vertices = sample_points_on_sphere(num_views)*scale
156
+ up = torch.randn(1, 3)
157
+ # up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
158
+ up = up / torch.norm(up, dim=1)[:, None]
159
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
160
+
161
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
162
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
163
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
164
+
165
+
166
+ # prepare the renderer
167
+ class MeshRendererWithDepth(torch.nn.Module):
168
+ def __init__(self, rasterizer, shader):
169
+ super().__init__()
170
+ self.rasterizer = rasterizer
171
+ self.shader = shader
172
+
173
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
174
+ fragments = self.rasterizer(meshes_world, **kwargs)
175
+ images = self.shader(fragments, meshes_world, **kwargs)
176
+ return images, fragments.zbuf
177
+
178
+
179
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
180
+
181
+ batch_size = 10
182
+ all_images=[]
183
+ all_fragments=[]
184
+
185
+ # move the data to the device
186
+ meshes = meshes.extend(batch_size).to(device)
187
+ for i in range(0,R.shape[0],batch_size):
188
+ R_batch = R[i:i+batch_size]
189
+ T_batch = T[i:i+batch_size]
190
+ cameras_batch = PerspectiveCameras(device=device, R=R_batch, T=T_batch, image_size=((420,420),),
191
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
192
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
193
+ in_ndc=False).to(device)
194
+
195
+ # prepare the lights
196
+ raster_settings = RasterizationSettings(image_size=image_size)
197
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None],
198
+ ambient_color=(light,),diffuse_color=(light,),device=device)
199
+
200
+ renderer = MeshRendererWithDepth(
201
+ rasterizer=MeshRasterizer(
202
+ cameras=cameras_batch,
203
+ raster_settings=raster_settings,
204
+ ),
205
+ # Set background color to blue [R, G, B]
206
+ shader=HardPhongShader(
207
+ device=device,
208
+ cameras=cameras_batch,
209
+ lights=lights,
210
+ blend_params=blend_params
211
+ )
212
+ )
213
+ images,fragments = renderer(meshes)
214
+ all_images.append(images)
215
+ all_fragments.append(fragments)
216
+ all_images = torch.cat(all_images,dim=0)
217
+ all_fragments = torch.cat(all_fragments,dim=0)
218
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
219
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
220
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
221
+ in_ndc=False).to(device)
222
+ return all_images,all_fragments,cameras
223
+
224
+
225
+ def fuse_feature_rgbd(extractor,images,fragments,cameras):
226
+ dino_feat_masked_list = []
227
+ feature_point_cloud_list = []
228
+ for i in range(images.shape[0]):
229
+ image = images.cpu().numpy()[i, :, :, :3]
230
+ image_mask = images[i, ..., 3].cpu().numpy()!=0
231
+ crop_size = (420, 420)
232
+ crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
233
+ cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
234
+ #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
235
+ orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
236
+
237
+ to_tensor = transforms.ToTensor()
238
+ input_image = to_tensor(cropped_image_np).cuda()
239
+ input_image = input_image.unsqueeze(0)
240
+ #input_image=extractor.preprocess_pil(input_image)
241
+ mean = torch.tensor([0.485, 0.456, 0.406]).cuda()
242
+ std = torch.tensor([0.229, 0.224, 0.225]).cuda()
243
+ input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
244
+
245
+ _desc_q = extractor.extract_descriptors(input_image,layer=11,include_cls=True).squeeze(1) # (1,900,384)
246
+ #_desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
247
+ #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
248
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
249
+ # _desc_q = _desc_q / (_norm_q)
250
+
251
+ desc = _desc_q[:,1:,:][None]
252
+ #cls_token_q = _desc_q[:,0,:] #B,C`
253
+
254
+ input_mask = to_tensor(crop_mask).cuda()
255
+ input_mask = input_mask.unsqueeze(0)
256
+
257
+ img_mask = to_tensor(image_mask)
258
+
259
+ img_mask = img_mask.permute(1,2,0)
260
+
261
+ dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
262
+ # create dino-feat with orignal size
263
+ dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
264
+ dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
265
+ # Fill the dino features into the original tensor at the specified bounding box
266
+ dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
267
+ # Apply the mask
268
+ dino_feat_masked = dino_feat_orig * img_mask
269
+ dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
270
+ dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
271
+
272
+ image_mask = images[i, ..., 3][None,None]
273
+ depth_image = fragments[i, ..., 0][None]*image_mask
274
+
275
+ # # Define the kernel for erosion (3x3 ones kernel)
276
+ # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
277
+ # # Number of erosion iterations
278
+ # iterations = 5
279
+
280
+ # # Perform iterative erosion
281
+ # for i in range(iterations):
282
+ # # Apply erosion using 2D convolution
283
+ # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
284
+ # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
285
+
286
+ feature_point_cloud = get_rgbd_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
287
+
288
+ index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
289
+ points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
290
+ colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
291
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
292
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
293
+ feature_point_cloud = torch.cat((points, colors), dim=1)
294
+
295
+ dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
296
+ feature_point_cloud_list.append(feature_point_cloud)
297
+ feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
298
+ dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
299
+ return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
300
+
301
+
302
+ def downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts=1024,k_nearest_neighbors=100, instance_points=None):
303
+ #N_1, C_1 = 2048, 384 # Example number of points and features
304
+ num_points_to_sample = num_pts
305
+ k_nearest_neighbors = k_nearest_neighbors
306
+
307
+ # Example input pointcloud and features (N_1, C_1), where N_1 is the number of points and C_1 is the feature dimension
308
+ pointcloud = feature_point_cloud[None,:,:3].cuda() # Shape (1, N_1, 3) for 3D coordinates
309
+ features = feature_point_cloud[None,:,3:].cuda() # Shape (1, N_1, C_1) for features
310
+
311
+ # Step 1: FPS to downsample the points
312
+ # We use sample_farthest_points to select num_points_to_sample points
313
+ sampled_points, sampled_indices = sample_farthest_points(pointcloud, K=num_points_to_sample) # Shape: (1, 1024, 3), (1, 1024)
314
+ if instance_points is not None:
315
+ sampled_points = instance_points
316
+
317
+ # Step 2: KNN to find nearest neighbors
318
+ # Find the k nearest neighbors for each sampled point in the original pointcloud
319
+ dists, knn_indices, _ = knn_points(sampled_points, pointcloud, K=k_nearest_neighbors, return_nn=False)
320
+
321
+ # Step 3: Gather the features of the k-nearest neighbors using the knn indices
322
+ # Use knn_gather to get neighbor features for each sampled point
323
+ neighbor_features = knn_gather(features, knn_indices) # Shape: (1, 1024, k, C_1)
324
+
325
+ # Step 4: Aggregate features from the neighbors (e.g., by averaging)
326
+ #aggregated_features,_ = torch.max(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
327
+ aggregated_features = torch.mean(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
328
+ return sampled_points, aggregated_features
329
+
330
+
331
+ def vis_pca(feature):
332
+ n_components=3 # the first component is to seperate the object from the background
333
+
334
+ pca = sklearnPCA(n_components=n_components)
335
+ feature = pca.fit_transform(feature.detach().cpu().numpy())
336
+ for show_channel in range(n_components):
337
+ # min max normalize the feature map
338
+ feature[:, show_channel] = (feature[:, show_channel] - feature[:, show_channel].mean()) / (feature[:, show_channel].std()*10)
339
+ feature_resized = np.clip(feature[:,:]+0.5,0,1)
340
+ return feature_resized
341
+
342
+
343
+ def patch2pixel_feats(patch_features, original_size):
344
+ # Calculate the number of patches along each dimension
345
+ num_patches = int(math.sqrt(patch_features.shape[2]))
346
+
347
+ batch_num = patch_features.shape[0]
348
+ feat_dim = patch_features.shape[3]
349
+ patch_features = patch_features.reshape(batch_num, num_patches, num_patches, feat_dim)
350
+ patch_features = patch_features.permute(0,3,1,2)
351
+
352
+ pixel_features = F.interpolate(patch_features, size=(original_size[0], original_size[1]), mode='bilinear')
353
+ pixel_features = pixel_features.squeeze().permute(1,2,0)
354
+
355
+ return pixel_features
356
+
357
+ def vis_pca_pixelwise(feature):
358
+ n_components = 4 # The number of PCA components to use
359
+ batch, feat_dim, height,width = feature.shape
360
+
361
+ # Reshape the feature to (num_pixels, feat_dim)
362
+ num_pixels = height * width
363
+ feature_reshaped = np.array(feature).transpose(0,2,3,1).reshape(-1, feat_dim)
364
+
365
+
366
+ # Apply PCA
367
+ pca = sklearnPCA(n_components=n_components)
368
+ feature_pca = pca.fit_transform(feature_reshaped)
369
+
370
+ # Min-max normalization for each component
371
+ # for show_channel in range(n_components):
372
+ # feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].min()) / \
373
+ # (feature_pca[:, show_channel].max() - feature_pca[:, show_channel].min() + 1e-8) # Small epsilon to avoid division by zero
374
+ for show_channel in range(n_components):
375
+ feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].mean()) / \
376
+ (feature_pca[:, show_channel].std()*10 + 1e-8) # Small epsilon to avoid division by zero
377
+
378
+ feature_pca = np.clip(feature_pca+0.5, 0, 1)
379
+ # Reshape the PCA result back to (height, width, n_components)
380
+ feature_resized = feature_pca.reshape(batch,height,width,n_components)[...,1:4]
381
+ return feature_resized
382
+
383
+ def normalize_mesh_verts(data):
384
+ # data [N, 3]
385
+ min_vals, _ = torch.min(data, dim=0)
386
+ max_vals, _ = torch.max(data, dim=0)
387
+ bbox_sizes = max_vals - min_vals
388
+ scale = torch.norm(bbox_sizes)
389
+ print("Scale:", scale)
390
+ normalized_verts = verts / scale
391
+ return normalized_verts
392
+
393
+ def plot_pointclouds_with_color_mapping(pc1_f, pc2_f,pc1,pc2, query_points, similarity_threshold=None):
394
+ """
395
+ Visualizes two 3D point clouds. The second point cloud (pc2) is color-mapped
396
+ using the 'viridis' colormap based on its similarity (proximity) to the sampled
397
+ query points in the first point cloud (pc1).
398
+
399
+ Parameters:
400
+ - pc1: np.ndarray of shape (N, 3), first point cloud #partial
401
+ - pc2: np.ndarray of shape (M, 3), second point cloud # global
402
+ - query_points: list of indices in pc1, representing the query points to compare.
403
+ - similarity_threshold: float, optional, threshold to cap the similarity distance.
404
+ """
405
+
406
+
407
+ pc1_f = pc1_f / np.linalg.norm(pc1_f, axis=1)[:, None] # Normalize the features
408
+ pc2_f = pc2_f / np.linalg.norm(pc2_f, axis=1)[:, None] # Normalize the features
409
+ # Create a figure with subplots
410
+ fig = plt.figure(figsize=(12, 10))
411
+ num_query_points = len(query_points)
412
+ # Set limits and labels
413
+ size = pc2.max() - pc2.min()
414
+ # Plot the first point cloud in the first subplot
415
+ ax1 = fig.add_subplot(1, num_query_points + 1, 1, projection='3d')
416
+ ax1.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color='grey', label='Point Cloud 1 (Left)', alpha=0.1,s=10)
417
+
418
+ # Define a color list for each query point
419
+ query_colors = cm.tab10(np.linspace(0, 1, num_query_points)) # Use tab10 colormap for distinct colors
420
+
421
+ # Highlight query points in pc1 with different colors
422
+ for i, idx in enumerate(query_points):
423
+ ax1.scatter(pc1[idx, 0], pc1[idx, 1], pc1[idx, 2],
424
+ color=query_colors[i], s=100, edgecolor='k', label=f'Query Point {idx}')
425
+
426
+ ax1.set_title('Point Cloud 1 with Query Points')
427
+ ax1.set_xlabel('X')
428
+ ax1.set_ylabel('Y')
429
+ ax1.set_zlabel('Z')
430
+ ax1.set_xlim(-size / 1.4, size / 1.4)
431
+ ax1.set_ylim(-size / 1.4, size / 1.4)
432
+ ax1.set_zlim(-size / 1.4, size / 1.4)
433
+ ax1.view_init(elev=45, azim=-45)
434
+ ax1.grid(True)
435
+ ax1.legend()
436
+
437
+ # Plot the second point cloud in the subsequent subplots
438
+ for k in range(num_query_points):
439
+
440
+ ax = fig.add_subplot(1, num_query_points + 1, k + 2, projection='3d')
441
+
442
+ # Calculate distances between query points in pc1 and all points in pc2
443
+ similarity =(pc1_f[query_points[k]][None]@ pc2_f.T).reshape(-1) # (1, 3) x (M, 3) = (1, M)
444
+ # For each point in pc2, take the minimum distance to any query point
445
+ min_similarity = np.min(similarity, axis=0)
446
+ # Optionally cap the similarity distances to a threshold (to avoid extreme values)
447
+ similarity_threshold= 0.3
448
+ if similarity_threshold is not None:
449
+ similarity = np.clip(similarity, similarity_threshold,1)
450
+ # Normalize the distances to a range of 0 to 1 for colormap mapping
451
+ similarity = (similarity - np.min(similarity)) / (np.max(similarity) - np.min(similarity))
452
+ colors = cm.plasma(similarity)
453
+
454
+ # Plot the second point cloud with color mapping based on similarity
455
+ ax.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color=colors, s=15, alpha=1.0, label='Point Cloud 2 (Right)', edgecolor='k')
456
+
457
+ ax.set_xlim(-size / 1.4, size / 1.4)
458
+ ax.set_ylim(-size / 1.4, size / 1.4)
459
+ ax.set_zlim(-size / 1.4, size / 1.4)
460
+ ax.set_title(f'QP_{query_points[k]}')
461
+ ax.set_xlabel('X')
462
+ ax.set_ylabel('Y')
463
+ ax.set_zlabel('Z')
464
+ ax.view_init(elev=45, azim=-45)
465
+ ax.grid(True)
466
+ ax.legend()
467
+
468
+ # Show the plot
469
+ plt.tight_layout()
470
+ plt.show()
471
+
472
+
473
+ def plot_pointclouds_3d_with_copca_old(global_sem_pcd, partial_sem_pcd, global_pcd, partial_pcd):
474
+ """
475
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
476
+
477
+ Parameters:
478
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
479
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
480
+ """
481
+
482
+
483
+ n_components = 3
484
+ # Step 1: Perform PCA on both global and partial point clouds
485
+ sem_pca = PCA(n_components=n_components)
486
+ sem_pca = sem_pca.fit(global_sem_pcd) # shape (N+M, 3)
487
+
488
+ transformed_sem_pcd_list = [sem_pca.transform(pcd) for pcd in [global_sem_pcd,partial_sem_pcd]]
489
+ sem_pcd_pca = np.concatenate(transformed_sem_pcd_list,axis=0)
490
+ for show_channel in range(n_components):
491
+ sem_pcd_pca[:, show_channel] = (sem_pcd_pca[:, show_channel] - sem_pcd_pca[:, show_channel].mean()) / \
492
+ (sem_pcd_pca[:, show_channel].std()*5 + 1e-8) # Small epsilon to avoid division by zero
493
+
494
+ # sem_pcd_pca_min = sem_pcd_pca.min()
495
+ # sem_pcd_pca_max = sem_pcd_pca.max()
496
+ # sem_pcd_pca = (sem_pcd_pca- sem_pcd_pca_min) / (sem_pcd_pca_max - sem_pcd_pca_min) # Normalize to [0, 1]
497
+
498
+ sem_pcd_pca = np.clip(sem_pcd_pca[:,:]+0.5, 0, 1)
499
+ global_pca = sem_pcd_pca[:global_sem_pcd.shape[0]] # shape (N, 3)
500
+ partial_pca = sem_pcd_pca[-partial_sem_pcd.shape[0]:] # shape (M, 3)
501
+
502
+ # Step 2: Create a 3D scatter plot
503
+ fig = plt.figure(figsize=(12, 6))
504
+ ax = fig.add_subplot(121, projection='3d')
505
+
506
+
507
+ # Global point cloud
508
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
509
+ c=global_pca, marker='o', s=100, alpha=1.0, label='Global Point Cloud')
510
+
511
+ # Set labels for each axis
512
+ # ax.set_xlabel('X axis')
513
+ # ax.set_ylabel('Y axis')
514
+ # ax.set_zlabel('Z axis')
515
+ ax.set_xlim(-0.5, 0.5)
516
+ ax.set_ylim(-0.5, 0.5)
517
+ ax.set_zlim(-0.5, 0.5)
518
+
519
+ ax1 = fig.add_subplot(122, projection='3d')
520
+
521
+ # Partial point cloud
522
+ ax1.scatter(partial_pcd[:, 0], partial_pcd[:, 1], partial_pcd[:, 2],
523
+ c=partial_pca, marker='o', s=100, alpha=1.0, label='Partial Point Cloud')
524
+
525
+ # ax1.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
526
+ # marker='o', s=10, alpha=0.1)
527
+ # Set labels for each axis
528
+ # ax1.set_xlabel('X axis')
529
+ # ax1.set_ylabel('Y axis')
530
+ # ax1.set_zlabel('Z axis')
531
+
532
+
533
+ ax1.set_xlim(-0.5, 0.5)
534
+ ax1.set_ylim(-0.5, 0.5)
535
+ ax1.set_zlim(-0.5, 0.5)
536
+ plt.tight_layout()
537
+
538
+ ax.view_init(120,-95)
539
+ ax1.view_init(120,-95)
540
+
541
+
542
+ ax.set_axis_off()
543
+ ax.set_facecolor((0, 0, 0, 0))
544
+ ax1.set_axis_off()
545
+ ax1.set_facecolor((0, 0, 0, 0))
546
+
547
+ plt.show()
548
+
549
+
550
+ def plot_pointclouds_3d_with_pca(global_sem_pcd, global_pcd):
551
+ """
552
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
553
+
554
+ Parameters:
555
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
556
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
557
+ """
558
+ #sem_pcd = np.concatenate((global_sem_pcd,partial_sem_pcd), axis=0) # shape (N+M, D)
559
+
560
+ # Step 1: Perform PCA on both global and partial point clouds
561
+ sem_pca = PCA(n_components=3)
562
+ sem_pcd_pca = sem_pca.fit_transform(global_sem_pcd) # shape (N+M, 3)
563
+
564
+ for i in range(3): # Iterate over each component (3 in total for RGB)
565
+ sem_pcd_pca_mean = sem_pcd_pca[:, i].mean()
566
+ sem_pcd_pca_std = sem_pcd_pca[:, i].std()
567
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - sem_pcd_pca_mean) / (sem_pcd_pca_std*5+1e-8) # Normalize to [0, 1]
568
+
569
+
570
+ global_pca = np.clip(sem_pcd_pca+0.5,0,1)
571
+ # scatter plot
572
+ fig = plt.figure(figsize=(6, 6))
573
+ ax = fig.add_subplot(111, projection='3d')
574
+
575
+ # Global point cloud
576
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
577
+ c=global_pca, marker='o', s=50, alpha=1.0, label='Global Point Cloud')
578
+
579
+ # Remove axes and background
580
+ ax.set_axis_off()
581
+
582
+ # Set background color to none
583
+ ax.set_facecolor((0, 0, 0, 0))
584
+ # # Set labels for each axis
585
+ # ax.set_xlabel('X axis')
586
+ # ax.set_ylabel('Y axis')
587
+ # ax.set_zlabel('Z axis')
588
+ ax.set_xlim(-0.5, 0.5)
589
+ ax.set_ylim(-0.5, 0.5)
590
+ ax.set_zlim(-0.5, 0.5)
591
+
592
+ ax.view_init(-73,102)
593
+
594
+ return fig
595
+
596
+
597
+ def plot_pointclouds_3d_with_copca(global_sem_pcd_list, global_pcd_list,co_pca=True):
598
+ """
599
+ Visualizes multiple point clouds in 3D, each in a separate subplot, after applying CoPCA.
600
+ Coloring them based on their PCA components.
601
+
602
+ Parameters:
603
+ - global_sem_pcd_list: list of numpy arrays for semantic point clouds (one per object).
604
+ - global_pcd_list: list of numpy arrays for global point clouds (one per object).
605
+ """
606
+ num_pcds = len(global_sem_pcd_list) # Number of point clouds
607
+ print("Number of point clouds to visualize:", num_pcds)
608
+ # Step 1: Perform CoPCA (Common PCA) on the semantic point clouds
609
+ # Concatenate all point clouds to perform common PCA
610
+ if co_pca:
611
+
612
+ concatenated_pcds = np.concatenate(global_sem_pcd_list, axis=0) # shape (N_total, D)
613
+ copca = PCA(n_components=3, random_state=0)
614
+ copca.fit(concatenated_pcds[:1024]) # Fit PCA on all point clouds together
615
+ transformed_sem_pcd_list = [copca.transform(pcd) for pcd in global_sem_pcd_list]
616
+
617
+
618
+ signs = np.sign(np.sum(transformed_sem_pcd_list[0], axis=0))
619
+ # Post-process to ensure consistent orientation of PCA components
620
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
621
+ # For each component (column), align sign based on the sum of values in the column
622
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
623
+ else:
624
+ copca = PCA(n_components=3)
625
+ transformed_sem_pcd_list = [copca.fit_transform(pcd) for pcd in global_sem_pcd_list]
626
+ # Post-process to ensure consistent orientation of PCA components
627
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
628
+ signs = np.sign(np.sum(transformed_pcd, axis=0))
629
+ # For each component (column), align sign based on the sum of values in the column
630
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
631
+
632
+
633
+
634
+ # Create a figure with subplots arranged in a grid (based on number of point clouds)
635
+ fig = plt.figure(figsize=(6 * num_pcds, 6)) # Adjust figure size based on the number of subplots
636
+
637
+ # Loop over the point clouds
638
+ for idx, (sem_pcd_pca, global_pcd) in enumerate(zip(transformed_sem_pcd_list, global_pcd_list)):
639
+ ax = fig.add_subplot(1, num_pcds, idx + 1, projection='3d')
640
+
641
+ # Step 2: Normalize the PCA-transformed data to use as colors
642
+ for i in range(3): # Iterate over each component (3 in total for RGB)
643
+ pca_mean = sem_pcd_pca[:, i].mean()
644
+ pca_std = sem_pcd_pca[:, i].std()
645
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - pca_mean) / (pca_std * 5 + 1e-8) # Normalize
646
+
647
+ global_pca_colors = np.clip(sem_pcd_pca + 0.5, 0, 1) # Map to [0, 1] for RGB
648
+
649
+ # Scatter plot for this point cloud in the current subplot
650
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
651
+ c=global_pca_colors, marker='o', s=50, alpha=1.0)
652
+
653
+ # Remove axes and background
654
+ ax.set_axis_off()
655
+ ax.set_facecolor((0, 0, 0, 0))
656
+
657
+ # Set axis limits for each subplot
658
+ ax.set_xlim(-0.5, 0.5)
659
+ ax.set_ylim(-0.5, 0.5)
660
+ ax.set_zlim(-0.5, 0.5)
661
+
662
+ # Set view angle
663
+ ax.view_init(-55, 102)
664
+
665
+ # Adjust spacing between subplots
666
+ plt.tight_layout()
667
+
668
+ return fig
669
+
670
+
671
+
672
+ def unnormalize(x):
673
+ # x.shape : [H,W,3]
674
+ mean = np.array([0.485, 0.456, 0.406])
675
+ std = np.array([0.229, 0.224, 0.225])
676
+ return x * std + mean
677
+
678
+
679
+ from custom_utils.housecat6d_dataset import HouseCat6DTrainingDataset
680
+ trainset = HouseCat6DTrainingDataset(image_size=420, sample_num=1024,data_dir='/media/xyz/data1/HouseCat6D')
681
+
682
+ vis = True
683
+ device = "cuda"
684
+ import matplotlib
685
+ matplotlib.use('TkAgg')
686
+
687
+ #cat_list = ['bottle','box','can','cup','cutlery','remote','shoe','tube','teapot']
688
+ cat_list = ['cup']
689
+
690
+
691
+ sem_global_list = []
692
+ sem_global_pcd_list = []
693
+
694
+ # load semantc feature and show
695
+ ########################################
696
+ save_dir = 'Yung/yung_large_files/semantic_feature/test_notebook/8v'
697
+ #save_dir = './80views_textured_token'
698
+ if True:
699
+ for cat in cat_list:
700
+ # # orriginal
701
+ # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
702
+ # instances = [line.strip() for line in f.readlines()]
703
+
704
+ # print(instances)
705
+ # revised
706
+ # instance try cup-grey_handle
707
+ instances = ['cup-grey_handle']
708
+ sem_global_list = []
709
+ sem_global_pcd_list = []
710
+
711
+ # Load the mean shape point cloud
712
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
713
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
714
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
715
+ M = meanshape_pcd_tensor.shape[0]
716
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float()
717
+ #make sure map to cuda0
718
+ average_aggregated_features = torch.load(f'//mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v_key/sem_cat_pcd_untex/cup_dino_feature.pt', map_location={"cuda:1": "cuda:0"})
719
+ sem_global_pcd_list.append(meanshape_points[0])
720
+ sem_global_list.append(average_aggregated_features[0].detach().cpu())
721
+ #fig =plot_pointclouds_3d_with_pca(average_aggregated_features[0].detach().cpu(),meanshape_points[0])
722
+ #fig.savefig('test.png')
723
+ for j,instance in enumerate(instances):
724
+ #break
725
+ print("Processing", instance)
726
+ #obj_path = f'/media/xyz/data/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
727
+ #instance_pcd_tensor = torch.load(f'{save_dir}/saved_pcd_untex/{cat}/{instance}_pcd.pt')[0]
728
+ #obj_path = f'/media/xyz/data1/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
729
+ # if instance != 'cup-grey_handle':
730
+ # # original pcd
731
+ instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
732
+ # Load the instance point cloud
733
+ instance_pcd_np = np.loadtxt(instance_pcd_path)
734
+ reference_scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
735
+
736
+ # else:
737
+ # instance_pcd_path = f'Yung/yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/normalized_groundtruth_pca.ply'
738
+ # pcd = o3d.io.read_point_cloud(instance_pcd_path)
739
+ # instance_pcd_np = np.asarray(pcd.points)
740
+
741
+ current_scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
742
+ scale_factor = reference_scale / current_scale
743
+ instance_pcd_np = instance_pcd_np * scale_factor
744
+
745
+ scale = np.linalg.norm(instance_pcd_np.max(axis=0) - instance_pcd_np.min(axis=0))
746
+ print("Scale:", scale)
747
+
748
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
749
+ N = instance_pcd_tensor.shape[0]
750
+ instance_points = instance_pcd_tensor.view(1, N, 3).float()
751
+ try:
752
+ # aggregated_features = torch.load(f'{save_dir}/saved_dino_pcd_untex/{cat}/{instance}_dino_feature.pt')
753
+ aggregated_features = average_aggregated_features
754
+ except:
755
+ print(f"Warning: {instance} not found.")
756
+ continue
757
+ # plot_pointclouds_3d_with_pca(aggregated_features[0].detach().cpu(),
758
+ # instance_points[0])
759
+
760
+ sem_global_pcd_list.append(instance_points[0].detach().cpu())
761
+ sem_global_list.append(aggregated_features[0].detach().cpu())
762
+ if len(sem_global_list)>4:
763
+ break
764
+
765
+ fig = plot_pointclouds_3d_with_copca(sem_global_list,sem_global_pcd_list,co_pca=True)
766
+ fig.savefig(f'./{save_dir}/{cat}.png')
767
+ ###############################
768
+
769
+
770
+ model_dict={'small':'dinov2_vits14',
771
+ 'base':'dinov2_vitb14',
772
+ 'large':'dinov2_vitl14',
773
+ 'giant':'dinov2_vitg14'}
774
+ extractor = ViTExtractor(model_dict['small'],14)
775
+ # use GPPU0
776
+ extractor.model = extractor.model.cuda(0) # the stride of first conv control outputs resolution
777
+
778
+ # extractor = torch.hub.load('facebookresearch/dinov2', model_dict['small'], pretrained=True).cuda()
779
+
780
+
781
+ # cat_list = ['bottle','box','can','cup','cutlery','glass','remote','shoe','tube','teapot']
782
+ cat_list = ['cup']
783
+
784
+ #cat_list = ['teapot']
785
+ #TODO: if condition for tex rendering
786
+ for cat in cat_list:
787
+ # orriginal
788
+ with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
789
+ instances = [line.strip() for line in f.readlines()]
790
+
791
+ print(instances)
792
+ # #revised
793
+ # # instance try cup-grey_handle
794
+ # instances = ['cup-grey_handle']
795
+
796
+ aggregated_features_list = [] # N * [1, 1024, 384]
797
+ # Load the mean shape point cloud
798
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
799
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
800
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
801
+ M = meanshape_pcd_tensor.shape[0]
802
+ # modify for cuda0
803
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float().cuda(0)
804
+
805
+
806
+ for j,instance in enumerate(instances):
807
+ # if instance != 'bottle-85_alcool':
808
+ # continue
809
+ print("Processing", instance)
810
+ obj_path = f'pose_dataset/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
811
+ instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
812
+
813
+ # Load the instance point cloud
814
+ instance_pcd_np = np.loadtxt(instance_pcd_path)
815
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
816
+ N = instance_pcd_tensor.shape[0]
817
+ # modify for cuda0
818
+ instance_points = instance_pcd_tensor.view(1, N, 3).float().cuda(0)
819
+
820
+ try:
821
+ verts, faces, aux = load_obj(obj_path)
822
+ except ValueError as e:
823
+ print(f"Warning: {e}, attempting to load without material.")
824
+
825
+ try:
826
+ verts, faces, aux = load_obj(obj_path, load_textures=True)
827
+ except ValueError as e2:
828
+ print(f"Failed to load {obj_path} without material: {e2}")
829
+ continue
830
+
831
+ # 检查 verts_uvs 是否为 None
832
+ if aux.verts_uvs is not None:
833
+ verts_uvs = aux.verts_uvs[None, ...] # (1, V, 2)
834
+ faces_uvs = faces.textures_idx[None, ...] # (1, F, 3)
835
+ tex_maps = aux.texture_images
836
+
837
+ # tex_maps is a dictionary of {material name: texture image}.
838
+ # Take the first image:
839
+ if tex_maps:
840
+ texture_image = list(tex_maps.values())[0]
841
+ texture_image = texture_image[None, ...] # (1, H, W, 3)
842
+
843
+ # Create a textures object
844
+ tex = TexturesUV(verts_uvs=verts_uvs, faces_uvs=faces_uvs, maps=texture_image)
845
+ print(f"Loaded texture for {instance}.")
846
+ else:
847
+ # 如果 verts_uvs 是 None,直接跳过纹理处理,或者你可以设置默认行为
848
+ print(f"No UV coordinates for {instance}, skipping texture mapping.")
849
+ tex = None
850
+
851
+ # Initialise the mesh with textures
852
+ verts = normalize_mesh_verts(verts) # Housecat meshes are absolute scale
853
+ # meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
854
+ # Rotate mesh 180 degrees around Y axis
855
+ # rotation_matrix = torch.tensor([
856
+ # [-1.0, 0.0, 0.0],
857
+ # [0.0, 1.0, 0.0],
858
+ # [0.0, 0.0, -1.0]
859
+ # ], dtype=torch.float32, device="cpu")
860
+ # verts = torch.matmul(verts, rotation_matrix.T)
861
+
862
+ meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
863
+
864
+ if meshes.textures is None:
865
+ meshes.textures = TexturesVertex(
866
+ verts_features=torch.ones_like(meshes.verts_padded(), device=device)
867
+ )
868
+
869
+ # render the mesh with 8 views, scale means the distance from the object to the camera
870
+ image_size=(420,420)
871
+ #images,fragments,cameras = render_batch(meshes,image_size=image_size,scale=1.0)
872
+ images,fragments,cameras = render(meshes,image_size=image_size,scale=2.0)
873
+
874
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
875
+ rgb = images.cpu().numpy()[:, :, :, :3]
876
+ image_grid(rgb, rows=1, cols=8, rgb=True)
877
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_rendering-notexture.png')
878
+ plt.close()
879
+
880
+ # get the feature point cloud
881
+ feature_point_cloud, dino_feat_masked, feature_point_cloud_list = fuse_feature_rgbd(extractor,images,fragments,cameras)
882
+
883
+ # get the downsampled aggregated feature point cloud
884
+ num_pts= 1024
885
+ nn_num= 100 # larger nn_num will make the feature more smooth
886
+ sampled_points,aggregated_features = downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts,nn_num)
887
+
888
+ # #Needed
889
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
890
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
891
+ # partial_feature_point_cloud[index,3:],
892
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
893
+ # partial_feature_point_cloud[index,:3])
894
+
895
+
896
+ q=0
897
+
898
+ if False:
899
+ q+=1
900
+ inputs = trainset[q]
901
+ rgb = inputs['rgb'][None].cuda()
902
+ pts = inputs['pts'][None]
903
+ choose = inputs['choose'][None]
904
+ model = inputs['model'][None].cuda()
905
+ rgb = inputs['rgb'][None].cuda()
906
+
907
+ _desc_q = extractor.forward_features(rgb)["x_prenorm"][:, :]
908
+ #_desc_q = extractor.extract_descriptors(rgb,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
909
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
910
+ # _desc_q = _desc_q / (_norm_q)
911
+
912
+ dino_feature = _desc_q[:,1:,:]
913
+
914
+
915
+ #dino_feature = self.rgb_extractor.forward_features(rgb)["x_prenorm"][:, 1:]
916
+ #rgb=self.rgb_extractor.preprocess_pil(rgb)
917
+ #dino_feature = self.rgb_extractor.extract_descriptors(rgb,layer=11,facet='key') # (1,900,384)
918
+ f_dim = dino_feature.shape[-1]
919
+ num_patches =int(dino_feature.shape[1]**0.5) # 1
920
+ b=1
921
+ dino_feature = dino_feature.reshape(b, num_patches, num_patches, f_dim).permute(0,3,1,2)
922
+
923
+ dino_feature = F.interpolate(dino_feature, size=(num_patches * 14, num_patches * 14), mode='nearest')
924
+ dino_feature_2d_vis = dino_feature.detach().cpu()[0] #384, 224,224
925
+
926
+ b, d = dino_feature.shape[0:2]
927
+ dino_feature = dino_feature.reshape(b,d,-1)
928
+ choose_2 = choose.unsqueeze(1).repeat(1, d, 1).cuda()
929
+ dino_feature = torch.gather(dino_feature,2,choose_2).contiguous() # b,d,n
930
+
931
+ #dino_feature = dino_feature / torch.std(dino_feature, dim=1, keepdim=True)
932
+ #dino_feature = torch.norm(dino_feature, dim=1, keepdim=True)
933
+ #choose_dino = choose.unsqueeze(1).repeat(1, d, 1Z
934
+ #sem_model = sem_model / torch.std(sem_model, dim=-1, keepdim=True)
935
+ #visual_global_sem_high = sem_model.detach().cpu().numpy()[0] #1024,384
936
+ visual_partial_sem_high = dino_feature.permute(0,2,1).detach().cpu().numpy()[0] #1024,128
937
+
938
+ #visual_global_sem_low = self.feature_mlp(sem_model.permute(0,2,1)).permute(0,2,1).detach().cpu().numpy()[0]
939
+ #visual_partial_sem_low = rgb_local.permute(0,2,1).detach().cpu().numpy()[0]
940
+ # transform the pts with GT 9D Pose into object coordinate
941
+ translation_gt = inputs['translation_label'][None]
942
+ rotation_gt = inputs['rotation_label'][None]
943
+ size_gt = inputs['size_label'][None]
944
+ pts_obj_frame = (inputs['pts'] - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
945
+ #kpt_obj_frame = (kpt_3d - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
946
+
947
+ # dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
948
+ # plt.imshow(dino_feature_2d_vis_pca[:,:,:3])
949
+ # plt.show()
950
+ # fig =plt.figure()
951
+ # rgb_unnorm = unnormalize(rgb[0].permute(1,2,0).detach().cpu())
952
+ # plt.imshow(rgb_unnorm)
953
+ # plt.show()
954
+ # image_mask = ((rgb_unnorm.clone().sum(axis=2) >0.1)*1.0)[None,None] # 224,224
955
+
956
+ # rgb_mask = np.array(image_mask[0,0,:,:,None]).repeat(384, axis=2).transpose(2,0,1)
957
+
958
+ # dino_feature_2d_vis[rgb_mask==0] = 0
959
+ # masked_dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
960
+ # plt.imshow(masked_dino_feature_2d_vis_pca[:,:,:])
961
+ # plt.show()
962
+
963
+
964
+ # print('self.pca.cateagg-partial')
965
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
966
+ # #average_aggregated_features = torch.load(f'sem_cat_pcd/{cat}_dino_feature.pt')
967
+
968
+ average_aggregated_features = torch.load(f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/sem_cat_pcd/{cat}_dino_feature.pt')
969
+ # #plot_pointclouds_3d_with_copca(aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), pts_obj_frame)
970
+
971
+ plot_pointclouds_3d_with_copca_old(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
972
+ visual_partial_sem_high,
973
+ sampled_points.squeeze(0).detach().cpu().numpy(),
974
+ pts_obj_frame[0].detach().cpu().numpy())
975
+ plt.show()
976
+
977
+
978
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
979
+ # visual_partial_sem_high,
980
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
981
+ # pts_obj_frame[0].detach().cpu().numpy())
982
+
983
+
984
+ # #query_points =np.random.choice(1024, 3)
985
+ # query_points, sampled_indices = sample_farthest_points(pts_obj_frame, K=4) # Shape: (1, 1024, 3), (1, 1024)
986
+ # plot_pointclouds_with_color_mapping(visual_partial_sem_high,
987
+ # aggregated_features.squeeze(0).detach().cpu().numpy(),
988
+ # pts_obj_frame[0].detach().cpu().numpy(),
989
+ # model[0].detach().cpu().numpy(),
990
+ # sampled_indices[0], similarity_threshold=None)
991
+
992
+
993
+ # # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
994
+ # # plot_pointclouds_3d_with_pca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
995
+ # partial_feature_point_cloud = feature_point_cloud_list[5]
996
+ # plot_pointclouds_3d_with_copca(visual_partial_sem_high,
997
+ # partial_feature_point_cloud[index,3:],
998
+ # pts_obj_frame[0].detach().cpu().numpy(),
999
+ # partial_feature_point_cloud[index,:3])
1000
+
1001
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), aggregated_features.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy())
1002
+
1003
+ os.makedirs(f'{save_dir}/saved_dino_pcd_untex-try/{cat}', exist_ok=True)
1004
+ torch.save(aggregated_features, f'{save_dir}/saved_dino_pcd_untex-try/{cat}/{instance}_dino_feature-notexture.pt')
1005
+
1006
+ os.makedirs(f'{save_dir}/saved_pcd_untex-try/{cat}', exist_ok=True)
1007
+ torch.save(sampled_points, f'{save_dir}/saved_pcd_untex-try/{cat}/{instance}_pcd-notexture.pt')
1008
+
1009
+ aggregated_features_list.append(aggregated_features)
1010
+ # #break
1011
+ vis_dino = vis_pca_pixelwise(np.array(dino_feat_masked))
1012
+ vis_img = np.clip(vis_dino[:,:,:,:],a_min=0,a_max=1)
1013
+ image_grid(vis_img, rows=1, cols=8, rgb=True)
1014
+
1015
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
1016
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_dino-notexture.png')
1017
+ plt.close()
1018
+ if False:
1019
+
1020
+ rgb = images.cpu().numpy()[:, :, :, :3]
1021
+ mask = images[:, ..., 3].cpu().numpy()!=0
1022
+ depth_image = fragments[:, ..., 0].cpu().numpy()*mask
1023
+ image_grid(rgb, rows=1, cols=8, rgb=True)
1024
+ # os.makedirs(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino', exist_ok=True)
1025
+ # plt.savefig(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino/{instance}_rgb.png')
1026
+ # image_grid(depth_image[...,None], rows=2, cols=4, rgb=True)
1027
+ # image_grid(mask[...,None], rows=2, cols=4, rgb=True)
1028
+
1029
+
1030
+
1031
+ fig = plt.figure(figsize=(10, 10))
1032
+ ax = fig.add_subplot(111, projection="3d")
1033
+ #ax.scatter(sampled_points[:, 2], sampled_points[:,0], sampled_points[:, 1], c="b")
1034
+ pca_color =vis_pca(feature_point_cloud[:, 3:])
1035
+ ax.scatter(feature_point_cloud[:, 2], feature_point_cloud[:, 0], feature_point_cloud[:, 1], c=pca_color,s=0.1)
1036
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1037
+ ax.set_xlabel("z")
1038
+ ax.set_ylabel("x")
1039
+ ax.set_zlabel("y")
1040
+ ax.set_xlim(-2, 2)
1041
+ ax.set_ylim(-2, 2)
1042
+ ax.set_zlim(-2, 2)
1043
+ plt.title("Sampled Dense Points from Mesh")
1044
+ plt.show()
1045
+
1046
+ fig = plt.figure(figsize=(10, 10))
1047
+ ax = fig.add_subplot(111, projection="3d")
1048
+ pca_color =vis_pca(aggregated_features.squeeze(0))
1049
+ sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1050
+ ax.scatter(sampled_points[:, 2], sampled_points[:, 0], sampled_points[:, 1], c=pca_color,s=50)
1051
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1052
+ ax.set_xlabel("z")
1053
+ ax.set_ylabel("x")
1054
+ ax.set_zlabel("y")
1055
+ ax.set_xlim(-2, 2)
1056
+ ax.set_ylim(-2, 2)
1057
+ ax.set_zlim(-2, 2)
1058
+ plt.title("Sampled Sparse Points from Mesh")
1059
+ plt.show()
1060
+ #break
1061
+ # Assign the aggregated features to the mean shape point cloud
1062
+ aggregated_features_tensor = torch.cat(aggregated_features_list, dim=0) #[N, 1024, 384]
1063
+ average_aggregated_features = aggregated_features_tensor.mean(dim=0, keepdim=True)
1064
+ print("Average Aggregated Features Shape:", average_aggregated_features.shape) # Should be (1, 1024, 384)
1065
+
1066
+ os.makedirs(f'{save_dir}/sem_cat_pcd_untex-try', exist_ok=True)
1067
+ torch.save(average_aggregated_features, f'{save_dir}/sem_cat_pcd_untex-try/{cat}_dino_feature.pt')
1068
+
1069
+ # fig = plt.figure(figsize=(10, 10))
1070
+ # ax = fig.add_subplot(111, projection="3d")
1071
+ # pca_color =vis_pca(average_aggregated_features.squeeze(0))
1072
+ # # sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1073
+ # meanshape_points = meanshape_points.squeeze(0).cpu().detach().numpy()
1074
+ # ax.scatter(meanshape_points[:, 2], meanshape_points[:, 0], meanshape_points[:, 1], c=pca_color,s=10.0, marker='o')
1075
+ # ax.set_xlabel("z")
1076
+ # ax.set_ylabel("x")
1077
+ # ax.set_zlabel("y")
1078
+ # ax.set_xlim(-2, 2)
1079
+ # ax.set_ylim(-2, 2)
1080
+ # ax.set_zlim(-2, 2)
1081
+ # plt.title("Shape Prior Dino")
1082
+ # plt.show()
1083
+
RGBD_DINO_HouseCat6D_final_copy_amodal.py ADDED
@@ -0,0 +1,1109 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import torch
2
+ from custom_utils import ShapeNetCore
3
+ from custom_utils import _compute_fov,_sample_points_from_faces
4
+ from custom_utils import image_grid
5
+ from custom_utils.shapenet_base import HouseCatDataset
6
+ import matplotlib.pyplot as plt
7
+ import numpy as np
8
+ import k3d
9
+ import os
10
+ import json
11
+ import torch
12
+ from PIL import Image
13
+
14
+ import cv2
15
+ import imageio
16
+ import numpy as np
17
+ from PIL import Image
18
+ import matplotlib.pyplot as plt
19
+ from torchvision import transforms
20
+ from custom_utils.extractor import ViTExtractor
21
+ import torch.nn.functional as F
22
+ from sklearn.decomposition import PCA as sklearnPCA
23
+ import math
24
+ from custom_utils.utils_general import center_crop
25
+
26
+ from pytorch3d.io import load_objs_as_meshes, load_obj
27
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
28
+ from pytorch3d.structures import Meshes
29
+ from pytorch3d.renderer import (
30
+ PerspectiveCameras,
31
+ FoVPerspectiveCameras,
32
+ PointLights,
33
+ MeshRasterizer,
34
+ MeshRenderer,
35
+ RasterizationSettings,
36
+ HardPhongShader,
37
+ TexturesVertex,
38
+ look_at_view_transform,
39
+ ray_bundle_to_ray_points,
40
+ NDCMultinomialRaysampler,
41
+ TexturesUV,
42
+ BlendParams,
43
+
44
+ TexturesVertex
45
+ )
46
+
47
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
48
+ from pytorch3d.structures import Pointclouds
49
+ import torch
50
+ from pytorch3d.ops import sample_farthest_points, knn_points, knn_gather
51
+
52
+ from matplotlib import cm
53
+ import numpy as np
54
+ import matplotlib.pyplot as plt
55
+ from sklearn.decomposition import PCA
56
+ from mpl_toolkits.mplot3d import Axes3D
57
+
58
+
59
+ def sample_points_on_sphere(num_points=80):
60
+ points = []
61
+ phi = (1 + math.sqrt(5)) / 2 # golden ratio
62
+
63
+ for i in range(num_points):
64
+ theta = 2 * math.pi * i / phi # azimuthal angle
65
+ z = 1 - (2 * i + 1) / num_points # z-coordinate, uniform from -1 to 1
66
+ radius = math.sqrt(1 - z * z) # radius for the xy-plane
67
+ x = radius * math.cos(theta)
68
+ y = radius * math.sin(theta)
69
+ points.append([x, y, z])
70
+
71
+ return torch.tensor(points, dtype=torch.float32)
72
+
73
+ def get_cube_vertices():
74
+ # Cube vertices (8 vertices)
75
+ return torch.tensor([[1, 1, 1],
76
+ [1, 1, -1],
77
+ [1, -1, 1],
78
+ [1, -1, -1],
79
+ [-1, 1, 1],
80
+ [-1, 1, -1],
81
+ [-1, -1, 1],
82
+ [-1, -1, -1]], dtype=torch.float32) # Ensure float type
83
+
84
+
85
+ def render(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
86
+ # prepare the camera
87
+ num_views = 8
88
+ # Get the cube vertices
89
+ #cube_vertices = get_cube_vertices()*scale
90
+ cube_vertices = sample_points_on_sphere(num_views)*scale
91
+ #up = torch.randn(1, 3)
92
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
93
+ up = up / torch.norm(up, dim=1)[:, None]
94
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
95
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
96
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
97
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
98
+
99
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
100
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
101
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
102
+ in_ndc=False)
103
+
104
+ # prepare the lights
105
+ raster_settings = RasterizationSettings(image_size=image_size)
106
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None], ambient_color=(light,),diffuse_color=(light,),device=device)
107
+
108
+ # move the data to the device
109
+ meshes = meshes.to(device)
110
+ cameras = cameras.to(device)
111
+ if len(cameras) != 1 and len(cameras) % len(meshes) != 0:
112
+ raise ValueError("Mismatch between batch dims of cameras and meshes.")
113
+ if len(cameras) > 1:
114
+ meshes = meshes.extend(len(cameras) // len(meshes))
115
+
116
+ # prepare the renderer
117
+ class MeshRendererWithDepth(torch.nn.Module):
118
+ def __init__(self, rasterizer, shader):
119
+ super().__init__()
120
+ self.rasterizer = rasterizer
121
+ self.shader = shader
122
+
123
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
124
+ fragments = self.rasterizer(meshes_world, **kwargs)
125
+ images = self.shader(fragments, meshes_world, **kwargs)
126
+ return images, fragments.zbuf
127
+
128
+
129
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
130
+ renderer = MeshRendererWithDepth(
131
+ rasterizer=MeshRasterizer(
132
+ cameras=cameras,
133
+ raster_settings=raster_settings,
134
+ ),
135
+ # Set background color to blue [R, G, B]
136
+
137
+ shader=HardPhongShader(
138
+ device=device,
139
+ cameras=cameras,
140
+ lights=lights,
141
+ blend_params=blend_params
142
+ )
143
+ )
144
+
145
+ images,fragments = renderer(meshes)
146
+ return images,fragments,cameras
147
+
148
+
149
+ def render_batch(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
150
+ # prepare the camera
151
+ num_views = 8
152
+ # Get the cube vertices
153
+ cube_vertices = get_cube_vertices()*scale
154
+ #cube_vertices = sample_points_on_sphere(num_views)*scale
155
+ up = torch.randn(1, 3)
156
+ # up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
157
+ up = up / torch.norm(up, dim=1)[:, None]
158
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
159
+
160
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
161
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
162
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
163
+
164
+
165
+ # prepare the renderer
166
+ class MeshRendererWithDepth(torch.nn.Module):
167
+ def __init__(self, rasterizer, shader):
168
+ super().__init__()
169
+ self.rasterizer = rasterizer
170
+ self.shader = shader
171
+
172
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
173
+ fragments = self.rasterizer(meshes_world, **kwargs)
174
+ images = self.shader(fragments, meshes_world, **kwargs)
175
+ return images, fragments.zbuf
176
+
177
+
178
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
179
+
180
+ batch_size = 10
181
+ all_images=[]
182
+ all_fragments=[]
183
+
184
+ # move the data to the device
185
+ meshes = meshes.extend(batch_size).to(device)
186
+ for i in range(0,R.shape[0],batch_size):
187
+ R_batch = R[i:i+batch_size]
188
+ T_batch = T[i:i+batch_size]
189
+ cameras_batch = PerspectiveCameras(device=device, R=R_batch, T=T_batch, image_size=((420,420),),
190
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
191
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
192
+ in_ndc=False).to(device)
193
+
194
+ # prepare the lights
195
+ raster_settings = RasterizationSettings(image_size=image_size)
196
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None],
197
+ ambient_color=(light,),diffuse_color=(light,),device=device)
198
+
199
+ renderer = MeshRendererWithDepth(
200
+ rasterizer=MeshRasterizer(
201
+ cameras=cameras_batch,
202
+ raster_settings=raster_settings,
203
+ ),
204
+ # Set background color to blue [R, G, B]
205
+ shader=HardPhongShader(
206
+ device=device,
207
+ cameras=cameras_batch,
208
+ lights=lights,
209
+ blend_params=blend_params
210
+ )
211
+ )
212
+ images,fragments = renderer(meshes)
213
+ all_images.append(images)
214
+ all_fragments.append(fragments)
215
+ all_images = torch.cat(all_images,dim=0)
216
+ all_fragments = torch.cat(all_fragments,dim=0)
217
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
218
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
219
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
220
+ in_ndc=False).to(device)
221
+ return all_images,all_fragments,cameras
222
+
223
+
224
+ def fuse_feature_rgbd(extractor,images,fragments,cameras):
225
+ dino_feat_masked_list = []
226
+ feature_point_cloud_list = []
227
+ for i in range(images.shape[0]):
228
+ image = images.cpu().numpy()[i, :, :, :3]
229
+ image_mask = images[i, ..., 3].cpu().numpy()!=0
230
+ crop_size = (420, 420)
231
+ crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
232
+ cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
233
+ #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
234
+ orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
235
+
236
+ to_tensor = transforms.ToTensor()
237
+ input_image = to_tensor(cropped_image_np).cuda()
238
+ input_image = input_image.unsqueeze(0)
239
+ #input_image=extractor.preprocess_pil(input_image)
240
+ mean = torch.tensor([0.485, 0.456, 0.406]).cuda()
241
+ std = torch.tensor([0.229, 0.224, 0.225]).cuda()
242
+ input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
243
+
244
+ _desc_q = extractor.extract_descriptors(input_image,layer=11,include_cls=True).squeeze(1) # (1,900,384)
245
+ #_desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
246
+ #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
247
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
248
+ # _desc_q = _desc_q / (_norm_q)
249
+
250
+ desc = _desc_q[:,1:,:][None]
251
+ #cls_token_q = _desc_q[:,0,:] #B,C`
252
+
253
+ input_mask = to_tensor(crop_mask).cuda()
254
+ input_mask = input_mask.unsqueeze(0)
255
+
256
+ img_mask = to_tensor(image_mask)
257
+
258
+ img_mask = img_mask.permute(1,2,0)
259
+
260
+ dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
261
+ # create dino-feat with orignal size
262
+ dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
263
+ dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
264
+ # Fill the dino features into the original tensor at the specified bounding box
265
+ dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
266
+ # Apply the mask
267
+ dino_feat_masked = dino_feat_orig * img_mask
268
+ dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
269
+ dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
270
+
271
+ image_mask = images[i, ..., 3][None,None]
272
+ depth_image = fragments[i, ..., 0][None]*image_mask
273
+
274
+ # # Define the kernel for erosion (3x3 ones kernel)
275
+ # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
276
+ # # Number of erosion iterations
277
+ # iterations = 5
278
+
279
+ # # Perform iterative erosion
280
+ # for i in range(iterations):
281
+ # # Apply erosion using 2D convolution
282
+ # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
283
+ # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
284
+
285
+ feature_point_cloud = get_rgbd_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
286
+
287
+ index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
288
+ points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
289
+ colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
290
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
291
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
292
+ feature_point_cloud = torch.cat((points, colors), dim=1)
293
+
294
+ dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
295
+ feature_point_cloud_list.append(feature_point_cloud)
296
+ feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
297
+ dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
298
+ return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
299
+
300
+
301
+ def downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts=1024,k_nearest_neighbors=100, instance_points=None):
302
+ #N_1, C_1 = 2048, 384 # Example number of points and features
303
+ num_points_to_sample = num_pts
304
+ k_nearest_neighbors = k_nearest_neighbors
305
+
306
+ # Example input pointcloud and features (N_1, C_1), where N_1 is the number of points and C_1 is the feature dimension
307
+ pointcloud = feature_point_cloud[None,:,:3].cuda() # Shape (1, N_1, 3) for 3D coordinates
308
+ features = feature_point_cloud[None,:,3:].cuda() # Shape (1, N_1, C_1) for features
309
+
310
+ # Step 1: FPS to downsample the points
311
+ # We use sample_farthest_points to select num_points_to_sample points
312
+ sampled_points, sampled_indices = sample_farthest_points(pointcloud, K=num_points_to_sample) # Shape: (1, 1024, 3), (1, 1024)
313
+ if instance_points is not None:
314
+ sampled_points = instance_points
315
+
316
+ # Step 2: KNN to find nearest neighbors
317
+ # Find the k nearest neighbors for each sampled point in the original pointcloud
318
+ dists, knn_indices, _ = knn_points(sampled_points, pointcloud, K=k_nearest_neighbors, return_nn=False)
319
+
320
+ # Step 3: Gather the features of the k-nearest neighbors using the knn indices
321
+ # Use knn_gather to get neighbor features for each sampled point
322
+ neighbor_features = knn_gather(features, knn_indices) # Shape: (1, 1024, k, C_1)
323
+
324
+ # Step 4: Aggregate features from the neighbors (e.g., by averaging)
325
+ #aggregated_features,_ = torch.max(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
326
+ aggregated_features = torch.mean(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
327
+ return sampled_points, aggregated_features
328
+
329
+
330
+ def vis_pca(feature):
331
+ n_components=3 # the first component is to seperate the object from the background
332
+
333
+ pca = sklearnPCA(n_components=n_components)
334
+ feature = pca.fit_transform(feature.detach().cpu().numpy())
335
+ for show_channel in range(n_components):
336
+ # min max normalize the feature map
337
+ feature[:, show_channel] = (feature[:, show_channel] - feature[:, show_channel].mean()) / (feature[:, show_channel].std()*10)
338
+ feature_resized = np.clip(feature[:,:]+0.5,0,1)
339
+ return feature_resized
340
+
341
+
342
+ def patch2pixel_feats(patch_features, original_size):
343
+ # Calculate the number of patches along each dimension
344
+ num_patches = int(math.sqrt(patch_features.shape[2]))
345
+
346
+ batch_num = patch_features.shape[0]
347
+ feat_dim = patch_features.shape[3]
348
+ patch_features = patch_features.reshape(batch_num, num_patches, num_patches, feat_dim)
349
+ patch_features = patch_features.permute(0,3,1,2)
350
+
351
+ pixel_features = F.interpolate(patch_features, size=(original_size[0], original_size[1]), mode='bilinear')
352
+ pixel_features = pixel_features.squeeze().permute(1,2,0)
353
+
354
+ return pixel_features
355
+
356
+ def vis_pca_pixelwise(feature):
357
+ n_components = 4 # The number of PCA components to use
358
+ batch, feat_dim, height,width = feature.shape
359
+
360
+ # Reshape the feature to (num_pixels, feat_dim)
361
+ num_pixels = height * width
362
+ feature_reshaped = np.array(feature).transpose(0,2,3,1).reshape(-1, feat_dim)
363
+
364
+
365
+ # Apply PCA
366
+ pca = sklearnPCA(n_components=n_components)
367
+ feature_pca = pca.fit_transform(feature_reshaped)
368
+
369
+ # Min-max normalization for each component
370
+ # for show_channel in range(n_components):
371
+ # feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].min()) / \
372
+ # (feature_pca[:, show_channel].max() - feature_pca[:, show_channel].min() + 1e-8) # Small epsilon to avoid division by zero
373
+ for show_channel in range(n_components):
374
+ feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].mean()) / \
375
+ (feature_pca[:, show_channel].std()*10 + 1e-8) # Small epsilon to avoid division by zero
376
+
377
+ feature_pca = np.clip(feature_pca+0.5, 0, 1)
378
+ # Reshape the PCA result back to (height, width, n_components)
379
+ feature_resized = feature_pca.reshape(batch,height,width,n_components)[...,1:4]
380
+ return feature_resized
381
+
382
+ def normalize_mesh_verts(data):
383
+ # data [N, 3]
384
+ min_vals, _ = torch.min(data, dim=0)
385
+ max_vals, _ = torch.max(data, dim=0)
386
+ bbox_sizes = max_vals - min_vals
387
+ scale = torch.norm(bbox_sizes)
388
+ print("Scale:", scale)
389
+ normalized_verts = verts / scale
390
+ return normalized_verts
391
+
392
+ def plot_pointclouds_with_color_mapping(pc1_f, pc2_f,pc1,pc2, query_points, similarity_threshold=None):
393
+ """
394
+ Visualizes two 3D point clouds. The second point cloud (pc2) is color-mapped
395
+ using the 'viridis' colormap based on its similarity (proximity) to the sampled
396
+ query points in the first point cloud (pc1).
397
+
398
+ Parameters:
399
+ - pc1: np.ndarray of shape (N, 3), first point cloud #partial
400
+ - pc2: np.ndarray of shape (M, 3), second point cloud # global
401
+ - query_points: list of indices in pc1, representing the query points to compare.
402
+ - similarity_threshold: float, optional, threshold to cap the similarity distance.
403
+ """
404
+
405
+
406
+ pc1_f = pc1_f / np.linalg.norm(pc1_f, axis=1)[:, None] # Normalize the features
407
+ pc2_f = pc2_f / np.linalg.norm(pc2_f, axis=1)[:, None] # Normalize the features
408
+ # Create a figure with subplots
409
+ fig = plt.figure(figsize=(12, 10))
410
+ num_query_points = len(query_points)
411
+ # Set limits and labels
412
+ size = pc2.max() - pc2.min()
413
+ # Plot the first point cloud in the first subplot
414
+ ax1 = fig.add_subplot(1, num_query_points + 1, 1, projection='3d')
415
+ ax1.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color='grey', label='Point Cloud 1 (Left)', alpha=0.1,s=10)
416
+
417
+ # Define a color list for each query point
418
+ query_colors = cm.tab10(np.linspace(0, 1, num_query_points)) # Use tab10 colormap for distinct colors
419
+
420
+ # Highlight query points in pc1 with different colors
421
+ for i, idx in enumerate(query_points):
422
+ ax1.scatter(pc1[idx, 0], pc1[idx, 1], pc1[idx, 2],
423
+ color=query_colors[i], s=100, edgecolor='k', label=f'Query Point {idx}')
424
+
425
+ ax1.set_title('Point Cloud 1 with Query Points')
426
+ ax1.set_xlabel('X')
427
+ ax1.set_ylabel('Y')
428
+ ax1.set_zlabel('Z')
429
+ ax1.set_xlim(-size / 1.4, size / 1.4)
430
+ ax1.set_ylim(-size / 1.4, size / 1.4)
431
+ ax1.set_zlim(-size / 1.4, size / 1.4)
432
+ ax1.view_init(elev=45, azim=-45)
433
+ ax1.grid(True)
434
+ ax1.legend()
435
+
436
+ # Plot the second point cloud in the subsequent subplots
437
+ for k in range(num_query_points):
438
+
439
+ ax = fig.add_subplot(1, num_query_points + 1, k + 2, projection='3d')
440
+
441
+ # Calculate distances between query points in pc1 and all points in pc2
442
+ similarity =(pc1_f[query_points[k]][None]@ pc2_f.T).reshape(-1) # (1, 3) x (M, 3) = (1, M)
443
+ # For each point in pc2, take the minimum distance to any query point
444
+ min_similarity = np.min(similarity, axis=0)
445
+ # Optionally cap the similarity distances to a threshold (to avoid extreme values)
446
+ similarity_threshold= 0.3
447
+ if similarity_threshold is not None:
448
+ similarity = np.clip(similarity, similarity_threshold,1)
449
+ # Normalize the distances to a range of 0 to 1 for colormap mapping
450
+ similarity = (similarity - np.min(similarity)) / (np.max(similarity) - np.min(similarity))
451
+ colors = cm.plasma(similarity)
452
+
453
+ # Plot the second point cloud with color mapping based on similarity
454
+ ax.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color=colors, s=15, alpha=1.0, label='Point Cloud 2 (Right)', edgecolor='k')
455
+
456
+ ax.set_xlim(-size / 1.4, size / 1.4)
457
+ ax.set_ylim(-size / 1.4, size / 1.4)
458
+ ax.set_zlim(-size / 1.4, size / 1.4)
459
+ ax.set_title(f'QP_{query_points[k]}')
460
+ ax.set_xlabel('X')
461
+ ax.set_ylabel('Y')
462
+ ax.set_zlabel('Z')
463
+ ax.view_init(elev=45, azim=-45)
464
+ ax.grid(True)
465
+ ax.legend()
466
+
467
+ # Show the plot
468
+ plt.tight_layout()
469
+ plt.show()
470
+
471
+
472
+ def plot_pointclouds_3d_with_copca_old(global_sem_pcd, partial_sem_pcd, global_pcd, partial_pcd):
473
+ """
474
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
475
+
476
+ Parameters:
477
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
478
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
479
+ """
480
+
481
+
482
+ n_components = 3
483
+ # Step 1: Perform PCA on both global and partial point clouds
484
+ sem_pca = PCA(n_components=n_components)
485
+ sem_pca = sem_pca.fit(global_sem_pcd) # shape (N+M, 3)
486
+
487
+ transformed_sem_pcd_list = [sem_pca.transform(pcd) for pcd in [global_sem_pcd,partial_sem_pcd]]
488
+ sem_pcd_pca = np.concatenate(transformed_sem_pcd_list,axis=0)
489
+ for show_channel in range(n_components):
490
+ sem_pcd_pca[:, show_channel] = (sem_pcd_pca[:, show_channel] - sem_pcd_pca[:, show_channel].mean()) / \
491
+ (sem_pcd_pca[:, show_channel].std()*5 + 1e-8) # Small epsilon to avoid division by zero
492
+
493
+ # sem_pcd_pca_min = sem_pcd_pca.min()
494
+ # sem_pcd_pca_max = sem_pcd_pca.max()
495
+ # sem_pcd_pca = (sem_pcd_pca- sem_pcd_pca_min) / (sem_pcd_pca_max - sem_pcd_pca_min) # Normalize to [0, 1]
496
+
497
+ sem_pcd_pca = np.clip(sem_pcd_pca[:,:]+0.5, 0, 1)
498
+ global_pca = sem_pcd_pca[:global_sem_pcd.shape[0]] # shape (N, 3)
499
+ partial_pca = sem_pcd_pca[-partial_sem_pcd.shape[0]:] # shape (M, 3)
500
+
501
+ # Step 2: Create a 3D scatter plot
502
+ fig = plt.figure(figsize=(12, 6))
503
+ ax = fig.add_subplot(121, projection='3d')
504
+
505
+
506
+ # Global point cloud
507
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
508
+ c=global_pca, marker='o', s=100, alpha=1.0, label='Global Point Cloud')
509
+
510
+ # Set labels for each axis
511
+ # ax.set_xlabel('X axis')
512
+ # ax.set_ylabel('Y axis')
513
+ # ax.set_zlabel('Z axis')
514
+ ax.set_xlim(-0.5, 0.5)
515
+ ax.set_ylim(-0.5, 0.5)
516
+ ax.set_zlim(-0.5, 0.5)
517
+
518
+ ax1 = fig.add_subplot(122, projection='3d')
519
+
520
+ # Partial point cloud
521
+ ax1.scatter(partial_pcd[:, 0], partial_pcd[:, 1], partial_pcd[:, 2],
522
+ c=partial_pca, marker='o', s=100, alpha=1.0, label='Partial Point Cloud')
523
+
524
+ # ax1.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
525
+ # marker='o', s=10, alpha=0.1)
526
+ # Set labels for each axis
527
+ # ax1.set_xlabel('X axis')
528
+ # ax1.set_ylabel('Y axis')
529
+ # ax1.set_zlabel('Z axis')
530
+
531
+
532
+ ax1.set_xlim(-0.5, 0.5)
533
+ ax1.set_ylim(-0.5, 0.5)
534
+ ax1.set_zlim(-0.5, 0.5)
535
+ plt.tight_layout()
536
+
537
+ ax.view_init(120,-95)
538
+ ax1.view_init(120,-95)
539
+
540
+
541
+ ax.set_axis_off()
542
+ ax.set_facecolor((0, 0, 0, 0))
543
+ ax1.set_axis_off()
544
+ ax1.set_facecolor((0, 0, 0, 0))
545
+
546
+ plt.show()
547
+
548
+
549
+ def plot_pointclouds_3d_with_pca(global_sem_pcd, global_pcd):
550
+ """
551
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
552
+
553
+ Parameters:
554
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
555
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
556
+ """
557
+ #sem_pcd = np.concatenate((global_sem_pcd,partial_sem_pcd), axis=0) # shape (N+M, D)
558
+
559
+ # Step 1: Perform PCA on both global and partial point clouds
560
+ sem_pca = PCA(n_components=3)
561
+ sem_pcd_pca = sem_pca.fit_transform(global_sem_pcd) # shape (N+M, 3)
562
+
563
+ for i in range(3): # Iterate over each component (3 in total for RGB)
564
+ sem_pcd_pca_mean = sem_pcd_pca[:, i].mean()
565
+ sem_pcd_pca_std = sem_pcd_pca[:, i].std()
566
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - sem_pcd_pca_mean) / (sem_pcd_pca_std*5+1e-8) # Normalize to [0, 1]
567
+
568
+
569
+ global_pca = np.clip(sem_pcd_pca+0.5,0,1)
570
+ # scatter plot
571
+ fig = plt.figure(figsize=(6, 6))
572
+ ax = fig.add_subplot(111, projection='3d')
573
+
574
+ # Global point cloud
575
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
576
+ c=global_pca, marker='o', s=50, alpha=1.0, label='Global Point Cloud')
577
+
578
+ # Remove axes and background
579
+ ax.set_axis_off()
580
+
581
+ # Set background color to none
582
+ ax.set_facecolor((0, 0, 0, 0))
583
+ # # Set labels for each axis
584
+ # ax.set_xlabel('X axis')
585
+ # ax.set_ylabel('Y axis')
586
+ # ax.set_zlabel('Z axis')
587
+ ax.set_xlim(-0.5, 0.5)
588
+ ax.set_ylim(-0.5, 0.5)
589
+ ax.set_zlim(-0.5, 0.5)
590
+
591
+ ax.view_init(-73,102)
592
+
593
+ return fig
594
+
595
+
596
+ def plot_pointclouds_3d_with_copca(global_sem_pcd_list, global_pcd_list,co_pca=True):
597
+ """
598
+ Visualizes multiple point clouds in 3D, each in a separate subplot, after applying CoPCA.
599
+ Coloring them based on their PCA components.
600
+
601
+ Parameters:
602
+ - global_sem_pcd_list: list of numpy arrays for semantic point clouds (one per object).
603
+ - global_pcd_list: list of numpy arrays for global point clouds (one per object).
604
+ """
605
+ num_pcds = len(global_sem_pcd_list) # Number of point clouds
606
+ print("Number of point clouds to visualize:", num_pcds)
607
+ # Step 1: Perform CoPCA (Common PCA) on the semantic point clouds
608
+ # Concatenate all point clouds to perform common PCA
609
+ if co_pca:
610
+ concatenated_pcds = np.concatenate(global_sem_pcd_list, axis=0) # shape (N_total, D)
611
+ copca = PCA(n_components=3, random_state=0)
612
+ copca.fit(concatenated_pcds[:1024]) # Fit PCA on all point clouds together
613
+ transformed_sem_pcd_list = [copca.transform(pcd) for pcd in global_sem_pcd_list]
614
+
615
+
616
+ signs = np.sign(np.sum(transformed_sem_pcd_list[0], axis=0))
617
+ # Post-process to ensure consistent orientation of PCA components
618
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
619
+ # For each component (column), align sign based on the sum of values in the column
620
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
621
+ else:
622
+ copca = PCA(n_components=3)
623
+ transformed_sem_pcd_list = [copca.fit_transform(pcd) for pcd in global_sem_pcd_list]
624
+ # Post-process to ensure consistent orientation of PCA components
625
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
626
+ signs = np.sign(np.sum(transformed_pcd, axis=0))
627
+ # For each component (column), align sign based on the sum of values in the column
628
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
629
+
630
+
631
+
632
+ # Create a figure with subplots arranged in a grid (based on number of point clouds)
633
+ fig = plt.figure(figsize=(6 * num_pcds, 6)) # Adjust figure size based on the number of subplots
634
+
635
+ # Loop over the point clouds
636
+ for idx, (sem_pcd_pca, global_pcd) in enumerate(zip(transformed_sem_pcd_list, global_pcd_list)):
637
+ ax = fig.add_subplot(1, num_pcds, idx + 1, projection='3d')
638
+
639
+ # Step 2: Normalize the PCA-transformed data to use as colors
640
+ for i in range(3): # Iterate over each component (3 in total for RGB)
641
+ pca_mean = sem_pcd_pca[:, i].mean()
642
+ pca_std = sem_pcd_pca[:, i].std()
643
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - pca_mean) / (pca_std * 5 + 1e-8) # Normalize
644
+
645
+ global_pca_colors = np.clip(sem_pcd_pca + 0.5, 0, 1) # Map to [0, 1] for RGB
646
+
647
+ # Scatter plot for this point cloud in the current subplot
648
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
649
+ c=global_pca_colors, marker='o', s=50, alpha=1.0)
650
+
651
+ # Remove axes and background
652
+ ax.set_axis_off()
653
+ ax.set_facecolor((0, 0, 0, 0))
654
+
655
+ # Set axis limits for each subplot
656
+ ax.set_xlim(-0.5, 0.5)
657
+ ax.set_ylim(-0.5, 0.5)
658
+ ax.set_zlim(-0.5, 0.5)
659
+
660
+ # Set view angle
661
+ ax.view_init(-55, 102)
662
+
663
+ # Adjust spacing between subplots
664
+ plt.tight_layout()
665
+
666
+ return fig
667
+
668
+
669
+
670
+ def unnormalize(x):
671
+ # x.shape : [H,W,3]
672
+ mean = np.array([0.485, 0.456, 0.406])
673
+ std = np.array([0.229, 0.224, 0.225])
674
+ return x * std + mean
675
+
676
+
677
+ from custom_utils.housecat6d_dataset import HouseCat6DTrainingDataset
678
+ trainset = HouseCat6DTrainingDataset(image_size=420, sample_num=1024,data_dir='/media/xyz/data1/HouseCat6D')
679
+
680
+ vis = True
681
+ device = "cuda"
682
+ import matplotlib
683
+ import open3d as o3d
684
+ from pytorch3d.io import load_objs_as_meshes
685
+ import trimesh
686
+ matplotlib.use('TkAgg')
687
+
688
+ #cat_list = ['bottle','box','can','cup','cutlery','remote','shoe','tube','teapot']
689
+ cat_list = ['cup']
690
+
691
+
692
+ sem_global_list = []
693
+ sem_global_pcd_list = []
694
+
695
+ # # load semantc feature and show
696
+ # ########################################
697
+ save_dir = 'Yung/yung_large_files/semantic_feature/test_notebook/8v'
698
+ # #save_dir = './80views_textured_token'
699
+ # if True:
700
+ # for cat in cat_list:
701
+ # # # orriginal
702
+ # # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
703
+ # # instances = [line.strip() for line in f.readlines()]
704
+
705
+ # # print(instances)
706
+ # # revised
707
+ # # instance try cup-grey_handle
708
+ # instances = ['cup-grey_handle']
709
+ # sem_global_list = []
710
+ # sem_global_pcd_list = []
711
+
712
+ # # Load the mean shape point cloud
713
+ # meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
714
+ # meanshape_pcd_np = np.loadtxt(meanshape_path)
715
+
716
+ # meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
717
+ # M = meanshape_pcd_tensor.shape[0]
718
+ # meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float()
719
+ # #make sure map to cuda0
720
+ # average_aggregated_features = torch.load(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v_key/sem_cat_pcd_untex/{cat}_dino_feature.pt', map_location={"cuda:1": "cuda:0"})
721
+ # sem_global_pcd_list.append(meanshape_points[0])
722
+ # sem_global_list.append(average_aggregated_features[0].detach().cpu())
723
+ # #fig =plot_pointclouds_3d_with_pca(average_aggregated_features[0].detach().cpu(),meanshape_points[0])
724
+ # #fig.savefig('test.png')
725
+ # for j,instance in enumerate(instances):
726
+ # #break
727
+ # print("Processing", instance)
728
+ # #obj_path = f'/media/xyz/data/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
729
+ # #instance_pcd_tensor = torch.load(f'{save_dir}/saved_pcd_untex/{cat}/{instance}_pcd.pt')[0]
730
+ # #obj_path = f'/media/xyz/data1/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
731
+ # # instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
732
+ # # instance_pcd_np = np.loadtxt(instance_pcd_path)
733
+ # instance_pcd_path = f'Yung/yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/input_pca.ply'
734
+ # pcd = o3d.io.read_point_cloud(instance_pcd_path)
735
+ # instance_pcd_np = np.asarray(pcd.points)
736
+
737
+ # # Rotate 180 degrees around y axis
738
+ # rotation_matrix = np.array([
739
+ # [-1, 0, 0],
740
+ # [0, 1, 0],
741
+ # [0, 0, -1]
742
+ # ])
743
+ # instance_pcd_np = instance_pcd_np @ rotation_matrix.T
744
+
745
+
746
+ # # Load the instance point cloud
747
+ # instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
748
+ # N = instance_pcd_tensor.shape[0]
749
+ # instance_points = instance_pcd_tensor.view(1, N, 3).float()
750
+ # try:
751
+ # # aggregated_features = torch.load(f'{save_dir}/saved_dino_pcd_untex/{cat}/{instance}_dino_feature.pt')
752
+ # aggregated_features = average_aggregated_features
753
+ # except:
754
+ # print(f"Warning: {instance} not found.")
755
+ # continue
756
+ # # plot_pointclouds_3d_with_pca(aggregated_features[0].detach().cpu(),
757
+ # # instance_points[0])
758
+ # sem_global_pcd_list.append(instance_points[0].detach().cpu())
759
+ # sem_global_list.append(aggregated_features[0].detach().cpu())
760
+ # if len(sem_global_list)>4:
761
+ # break
762
+
763
+ # fig = plot_pointclouds_3d_with_copca(sem_global_list,sem_global_pcd_list,co_pca=True)
764
+ # fig.savefig(f'./{save_dir}/{cat}_amodal.png')
765
+ # ###############################
766
+
767
+
768
+ model_dict={'small':'dinov2_vits14',
769
+ 'base':'dinov2_vitb14',
770
+ 'large':'dinov2_vitl14',
771
+ 'giant':'dinov2_vitg14'}
772
+ extractor = ViTExtractor(model_dict['small'],14)
773
+ # use GPPU0
774
+ extractor.model = extractor.model.cuda(0) # the stride of first conv control outputs resolution
775
+
776
+ # extractor = torch.hub.load('facebookresearch/dinov2', model_dict['small'], pretrained=True).cuda()
777
+
778
+
779
+ # cat_list = ['bottle','box','can','cup','cutlery','glass','remote','shoe','tube','teapot']
780
+ cat_list = ['cup']
781
+
782
+ #cat_list = ['teapot']
783
+ #TODO: if condition for tex rendering
784
+ for cat in cat_list:
785
+ # # orriginal
786
+ # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
787
+ # instances = [line.strip() for line in f.readlines()]
788
+
789
+ # print(instances)
790
+ #revised
791
+ # instance try cup-grey_handle
792
+ instances = ['cup-grey_handle']
793
+
794
+ aggregated_features_list = [] # N * [1, 1024, 384]
795
+ # Load the mean shape point cloud
796
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
797
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
798
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
799
+ M = meanshape_pcd_tensor.shape[0]
800
+ # modify for cuda0
801
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float().cuda(0)
802
+
803
+
804
+ for j,instance in enumerate(instances):
805
+ # #original
806
+ # # if instance != 'bottle-85_alcool':
807
+ # # continue
808
+ # print("Processing", instance)
809
+ # obj_path = f'pose_dataset/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
810
+ # instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
811
+
812
+ # # Load the instance point cloud
813
+ # instance_pcd_np = np.loadtxt(instance_pcd_path)
814
+ # try:
815
+ # verts, faces, aux = load_obj(obj_path)
816
+ # except ValueError as e:
817
+ # print(f"Warning: {e}, attempting to load without material.")
818
+
819
+ # try:
820
+ # verts, faces, aux = load_obj(obj_path, load_textures=True)
821
+ # except ValueError as e2:
822
+ # print(f"Failed to load {obj_path} without material: {e2}")
823
+ # continue
824
+ # meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
825
+
826
+ #modify for amodal
827
+ print("Processing", instance)
828
+ obj_path = f'/mnt/4T/Yung/yung_large_files/pose_can_results/output_orientation_Matters/Amodal3r_HouseCat6D_test/scene01/000000/cup-grey_handle/mesh.glb'
829
+ instance_pcd_path = f"/mnt/4T/Yung/yung_large_files/pose_can_results/output_orientation_Matters/Amodal3r_HouseCat6D_test/scene01/000000/cup-grey_handle/mesh_downsampled.npz"
830
+ instance_pcd_np = np.load(instance_pcd_path)['coord']
831
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
832
+ N = instance_pcd_tensor.shape[0]
833
+ # modify for cuda0
834
+ instance_points = instance_pcd_tensor.view(1, N, 3).float().cuda(0)
835
+
836
+ try:
837
+ verts, faces, aux = load_obj(obj_path)
838
+ except Exception as e:
839
+ print(f"Warning: Failed to load OBJ with load_obj: {e}")
840
+ try:
841
+ mesh = trimesh.load(obj_path, force='mesh')
842
+ verts = torch.from_numpy(mesh.vertices).float()
843
+ faces = torch.from_numpy(mesh.faces).long()
844
+
845
+ # Extract texture information from trimesh
846
+ tex = None
847
+ if isinstance(mesh, trimesh.Scene):
848
+ # Extract the first geometry from the scene
849
+ if len(mesh.geometry) == 0:
850
+ raise ValueError(f"No geometry found in scene for {obj_path}")
851
+ mesh = list(mesh.geometry.values())[0]
852
+
853
+ # Extract texture information from the mesh
854
+ color_visual = mesh.visual.to_color()
855
+ if hasattr(color_visual, "vertex_colors") and color_visual.vertex_colors is not None:
856
+ # Create vertex textures from vertex colors
857
+ print("Using vertex colors for texture.")
858
+ vertex_colors = torch.from_numpy(color_visual.vertex_colors[:, :3].astype(np.float32)) / 255.0
859
+ tex = TexturesVertex(verts_features=vertex_colors[None])
860
+ elif hasattr(color_visual, "face_colors") and color_visual.face_colors is not None:
861
+ # Average face colors to vertices
862
+ print("Using face colors to compute vertex colors for texture.")
863
+ vertex_colors = np.zeros((len(mesh.vertices), 3))
864
+ vertex_counts = np.zeros(len(mesh.vertices))
865
+ for face, color in zip(mesh.faces, color_visual.face_colors):
866
+ vertex_colors[face] += color[:3]
867
+ vertex_counts[face] += 1
868
+ vertex_colors = vertex_colors / (vertex_counts[:, None] + 1e-8)
869
+ vertex_colors = torch.from_numpy(vertex_colors.astype(np.float32)) / 255.0
870
+ tex = TexturesVertex(verts_features=vertex_colors[None])
871
+ else:
872
+ print("No vertex or face colors found; proceeding without texture.")
873
+ tex = None
874
+
875
+
876
+ except Exception as e2:
877
+ print(f"Warning: Failed to load GLB with trimesh: {e2}")
878
+ continue
879
+
880
+
881
+ # Initialise the mesh with textures
882
+ verts = normalize_mesh_verts(verts) # Housecat meshes are absolute scale
883
+ # original
884
+ # meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=tex)
885
+ # revised for amodal
886
+ meshes = Meshes(verts=[verts], faces=[faces], textures=tex)
887
+
888
+ if meshes.textures is None:
889
+ meshes.textures = TexturesVertex(
890
+ verts_features=torch.ones_like(meshes.verts_padded(), device=device)
891
+ )
892
+
893
+ # render the mesh with 8 views, scale means the distance from the object to the camera
894
+ image_size=(420,420)
895
+ #images,fragments,cameras = render_batch(meshes,image_size=image_size,scale=1.0)
896
+ images,fragments,cameras = render(meshes,image_size=image_size,scale=2.0)
897
+
898
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
899
+ rgb = images.cpu().numpy()[:, :, :, :3]
900
+ image_grid(rgb, rows=1, cols=8, rgb=True)
901
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_rendering-texture_amodal.png')
902
+ plt.close()
903
+
904
+ # get the feature point cloud
905
+ feature_point_cloud, dino_feat_masked, feature_point_cloud_list = fuse_feature_rgbd(extractor,images,fragments,cameras)
906
+
907
+ # get the downsampled aggregated feature point cloud
908
+ num_pts= 1024
909
+ nn_num= 100 # larger nn_num will make the feature more smooth
910
+ sampled_points,aggregated_features = downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts,nn_num)
911
+
912
+ # #Needed
913
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
914
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
915
+ # partial_feature_point_cloud[index,3:],
916
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
917
+ # partial_feature_point_cloud[index,:3])
918
+
919
+
920
+ q=0
921
+
922
+ if False:
923
+ q+=1
924
+ inputs = trainset[q]
925
+ rgb = inputs['rgb'][None].cuda()
926
+ pts = inputs['pts'][None]
927
+ choose = inputs['choose'][None]
928
+ model = inputs['model'][None].cuda()
929
+ rgb = inputs['rgb'][None].cuda()
930
+
931
+ _desc_q = extractor.forward_features(rgb)["x_prenorm"][:, :]
932
+ #_desc_q = extractor.extract_descriptors(rgb,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
933
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
934
+ # _desc_q = _desc_q / (_norm_q)
935
+
936
+ dino_feature = _desc_q[:,1:,:]
937
+
938
+
939
+ #dino_feature = self.rgb_extractor.forward_features(rgb)["x_prenorm"][:, 1:]
940
+ #rgb=self.rgb_extractor.preprocess_pil(rgb)
941
+ #dino_feature = self.rgb_extractor.extract_descriptors(rgb,layer=11,facet='key') # (1,900,384)
942
+ f_dim = dino_feature.shape[-1]
943
+ num_patches =int(dino_feature.shape[1]**0.5) # 1
944
+ b=1
945
+ dino_feature = dino_feature.reshape(b, num_patches, num_patches, f_dim).permute(0,3,1,2)
946
+
947
+ dino_feature = F.interpolate(dino_feature, size=(num_patches * 14, num_patches * 14), mode='nearest')
948
+ dino_feature_2d_vis = dino_feature.detach().cpu()[0] #384, 224,224
949
+
950
+ b, d = dino_feature.shape[0:2]
951
+ dino_feature = dino_feature.reshape(b,d,-1)
952
+ choose_2 = choose.unsqueeze(1).repeat(1, d, 1).cuda()
953
+ dino_feature = torch.gather(dino_feature,2,choose_2).contiguous() # b,d,n
954
+
955
+ #dino_feature = dino_feature / torch.std(dino_feature, dim=1, keepdim=True)
956
+ #dino_feature = torch.norm(dino_feature, dim=1, keepdim=True)
957
+ #choose_dino = choose.unsqueeze(1).repeat(1, d, 1Z
958
+ #sem_model = sem_model / torch.std(sem_model, dim=-1, keepdim=True)
959
+ #visual_global_sem_high = sem_model.detach().cpu().numpy()[0] #1024,384
960
+ visual_partial_sem_high = dino_feature.permute(0,2,1).detach().cpu().numpy()[0] #1024,128
961
+
962
+ #visual_global_sem_low = self.feature_mlp(sem_model.permute(0,2,1)).permute(0,2,1).detach().cpu().numpy()[0]
963
+ #visual_partial_sem_low = rgb_local.permute(0,2,1).detach().cpu().numpy()[0]
964
+ # transform the pts with GT 9D Pose into object coordinate
965
+ translation_gt = inputs['translation_label'][None]
966
+ rotation_gt = inputs['rotation_label'][None]
967
+ size_gt = inputs['size_label'][None]
968
+ pts_obj_frame = (inputs['pts'] - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
969
+ #kpt_obj_frame = (kpt_3d - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
970
+
971
+ # dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
972
+ # plt.imshow(dino_feature_2d_vis_pca[:,:,:3])
973
+ # plt.show()
974
+ # fig =plt.figure()
975
+ # rgb_unnorm = unnormalize(rgb[0].permute(1,2,0).detach().cpu())
976
+ # plt.imshow(rgb_unnorm)
977
+ # plt.show()
978
+ # image_mask = ((rgb_unnorm.clone().sum(axis=2) >0.1)*1.0)[None,None] # 224,224
979
+
980
+ # rgb_mask = np.array(image_mask[0,0,:,:,None]).repeat(384, axis=2).transpose(2,0,1)
981
+
982
+ # dino_feature_2d_vis[rgb_mask==0] = 0
983
+ # masked_dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
984
+ # plt.imshow(masked_dino_feature_2d_vis_pca[:,:,:])
985
+ # plt.show()
986
+
987
+
988
+ # print('self.pca.cateagg-partial')
989
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
990
+ # #average_aggregated_features = torch.load(f'sem_cat_pcd/{cat}_dino_feature.pt')
991
+
992
+ average_aggregated_features = torch.load(f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/sem_cat_pcd/{cat}_dino_feature.pt')
993
+ # #plot_pointclouds_3d_with_copca(aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), pts_obj_frame)
994
+
995
+ plot_pointclouds_3d_with_copca_old(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
996
+ visual_partial_sem_high,
997
+ sampled_points.squeeze(0).detach().cpu().numpy(),
998
+ pts_obj_frame[0].detach().cpu().numpy())
999
+ plt.show()
1000
+
1001
+
1002
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1003
+ # visual_partial_sem_high,
1004
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
1005
+ # pts_obj_frame[0].detach().cpu().numpy())
1006
+
1007
+
1008
+ # #query_points =np.random.choice(1024, 3)
1009
+ # query_points, sampled_indices = sample_farthest_points(pts_obj_frame, K=4) # Shape: (1, 1024, 3), (1, 1024)
1010
+ # plot_pointclouds_with_color_mapping(visual_partial_sem_high,
1011
+ # aggregated_features.squeeze(0).detach().cpu().numpy(),
1012
+ # pts_obj_frame[0].detach().cpu().numpy(),
1013
+ # model[0].detach().cpu().numpy(),
1014
+ # sampled_indices[0], similarity_threshold=None)
1015
+
1016
+
1017
+ # # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1018
+ # # plot_pointclouds_3d_with_pca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1019
+ # partial_feature_point_cloud = feature_point_cloud_list[5]
1020
+ # plot_pointclouds_3d_with_copca(visual_partial_sem_high,
1021
+ # partial_feature_point_cloud[index,3:],
1022
+ # pts_obj_frame[0].detach().cpu().numpy(),
1023
+ # partial_feature_point_cloud[index,:3])
1024
+
1025
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), aggregated_features.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy())
1026
+
1027
+
1028
+
1029
+ os.makedirs(f'{save_dir}/saved_dino_pcd_untex-try/{cat}', exist_ok=True)
1030
+ torch.save(aggregated_features, f'{save_dir}/saved_dino_pcd_untex-try/{cat}/{instance}_dino_feature-texture_amodal.pt')
1031
+
1032
+ os.makedirs(f'{save_dir}/saved_pcd_untex-try/{cat}', exist_ok=True)
1033
+ torch.save(sampled_points, f'{save_dir}/saved_pcd_untex-try/{cat}/{instance}_pcd-texture_amodal.pt')
1034
+
1035
+ aggregated_features_list.append(aggregated_features)
1036
+ # #break
1037
+ vis_dino = vis_pca_pixelwise(np.array(dino_feat_masked))
1038
+ vis_img = np.clip(vis_dino[:,:,:,:],a_min=0,a_max=1)
1039
+ image_grid(vis_img, rows=1, cols=8, rgb=True)
1040
+
1041
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
1042
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_dino-texture_amodal.png')
1043
+ plt.close()
1044
+ if False:
1045
+
1046
+ rgb = images.cpu().numpy()[:, :, :, :3]
1047
+ mask = images[:, ..., 3].cpu().numpy()!=0
1048
+ depth_image = fragments[:, ..., 0].cpu().numpy()*mask
1049
+ image_grid(rgb, rows=1, cols=8, rgb=True)
1050
+ # os.makedirs(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino', exist_ok=True)
1051
+ # plt.savefig(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino/{instance}_rgb.png')
1052
+ # image_grid(depth_image[...,None], rows=2, cols=4, rgb=True)
1053
+ # image_grid(mask[...,None], rows=2, cols=4, rgb=True)
1054
+
1055
+
1056
+
1057
+ fig = plt.figure(figsize=(10, 10))
1058
+ ax = fig.add_subplot(111, projection="3d")
1059
+ #ax.scatter(sampled_points[:, 2], sampled_points[:,0], sampled_points[:, 1], c="b")
1060
+ pca_color =vis_pca(feature_point_cloud[:, 3:])
1061
+ ax.scatter(feature_point_cloud[:, 2], feature_point_cloud[:, 0], feature_point_cloud[:, 1], c=pca_color,s=0.1)
1062
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1063
+ ax.set_xlabel("z")
1064
+ ax.set_ylabel("x")
1065
+ ax.set_zlabel("y")
1066
+ ax.set_xlim(-2, 2)
1067
+ ax.set_ylim(-2, 2)
1068
+ ax.set_zlim(-2, 2)
1069
+ plt.title("Sampled Dense Points from Mesh")
1070
+ plt.show()
1071
+
1072
+ fig = plt.figure(figsize=(10, 10))
1073
+ ax = fig.add_subplot(111, projection="3d")
1074
+ pca_color =vis_pca(aggregated_features.squeeze(0))
1075
+ sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1076
+ ax.scatter(sampled_points[:, 2], sampled_points[:, 0], sampled_points[:, 1], c=pca_color,s=50)
1077
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1078
+ ax.set_xlabel("z")
1079
+ ax.set_ylabel("x")
1080
+ ax.set_zlabel("y")
1081
+ ax.set_xlim(-2, 2)
1082
+ ax.set_ylim(-2, 2)
1083
+ ax.set_zlim(-2, 2)
1084
+ plt.title("Sampled Sparse Points from Mesh")
1085
+ plt.show()
1086
+ #break
1087
+ # Assign the aggregated features to the mean shape point cloud
1088
+ aggregated_features_tensor = torch.cat(aggregated_features_list, dim=0) #[N, 1024, 384]
1089
+ average_aggregated_features = aggregated_features_tensor.mean(dim=0, keepdim=True)
1090
+ print("Average Aggregated Features Shape:", average_aggregated_features.shape) # Should be (1, 1024, 384)
1091
+
1092
+ os.makedirs(f'{save_dir}/sem_cat_pcd_untex-try', exist_ok=True)
1093
+ torch.save(average_aggregated_features, f'{save_dir}/sem_cat_pcd_untex-try/{cat}_dino_feature.pt')
1094
+
1095
+ # fig = plt.figure(figsize=(10, 10))
1096
+ # ax = fig.add_subplot(111, projection="3d")
1097
+ # pca_color =vis_pca(average_aggregated_features.squeeze(0))
1098
+ # # sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1099
+ # meanshape_points = meanshape_points.squeeze(0).cpu().detach().numpy()
1100
+ # ax.scatter(meanshape_points[:, 2], meanshape_points[:, 0], meanshape_points[:, 1], c=pca_color,s=10.0, marker='o')
1101
+ # ax.set_xlabel("z")
1102
+ # ax.set_ylabel("x")
1103
+ # ax.set_zlabel("y")
1104
+ # ax.set_xlim(-2, 2)
1105
+ # ax.set_ylim(-2, 2)
1106
+ # ax.set_zlim(-2, 2)
1107
+ # plt.title("Shape Prior Dino")
1108
+ # plt.show()
1109
+
RGBD_DINO_HouseCat6D_final_copy_sam3d.py ADDED
@@ -0,0 +1,1131 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import torch
2
+ from custom_utils import ShapeNetCore
3
+ from custom_utils import _compute_fov,_sample_points_from_faces
4
+ from custom_utils import image_grid
5
+ from custom_utils.shapenet_base import HouseCatDataset
6
+ import matplotlib.pyplot as plt
7
+ import numpy as np
8
+ import k3d
9
+ import os
10
+ import json
11
+ import torch
12
+ from PIL import Image
13
+
14
+ import cv2
15
+ import imageio
16
+ import numpy as np
17
+ from PIL import Image
18
+ import matplotlib.pyplot as plt
19
+ from torchvision import transforms
20
+ from custom_utils.extractor import ViTExtractor
21
+ import torch.nn.functional as F
22
+ from sklearn.decomposition import PCA as sklearnPCA
23
+ import math
24
+ from custom_utils.utils_general import center_crop
25
+
26
+ from pytorch3d.io import load_objs_as_meshes, load_obj
27
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
28
+ from pytorch3d.structures import Meshes
29
+ from pytorch3d.renderer import (
30
+ PerspectiveCameras,
31
+ FoVPerspectiveCameras,
32
+ PointLights,
33
+ MeshRasterizer,
34
+ MeshRenderer,
35
+ RasterizationSettings,
36
+ HardPhongShader,
37
+ TexturesVertex,
38
+ look_at_view_transform,
39
+ ray_bundle_to_ray_points,
40
+ NDCMultinomialRaysampler,
41
+ TexturesUV,
42
+ BlendParams,
43
+
44
+ TexturesVertex
45
+ )
46
+
47
+ from pytorch3d.implicitron.tools.point_cloud_utils import get_rgbd_point_cloud
48
+ from pytorch3d.structures import Pointclouds
49
+ import torch
50
+ from pytorch3d.ops import sample_farthest_points, knn_points, knn_gather
51
+
52
+ from matplotlib import cm
53
+ import numpy as np
54
+ import matplotlib.pyplot as plt
55
+ from sklearn.decomposition import PCA
56
+ from mpl_toolkits.mplot3d import Axes3D
57
+
58
+
59
+ def sample_points_on_sphere(num_points=80):
60
+ points = []
61
+ phi = (1 + math.sqrt(5)) / 2 # golden ratio
62
+
63
+ for i in range(num_points):
64
+ theta = 2 * math.pi * i / phi # azimuthal angle
65
+ z = 1 - (2 * i + 1) / num_points # z-coordinate, uniform from -1 to 1
66
+ radius = math.sqrt(1 - z * z) # radius for the xy-plane
67
+ x = radius * math.cos(theta)
68
+ y = radius * math.sin(theta)
69
+ points.append([x, y, z])
70
+
71
+ return torch.tensor(points, dtype=torch.float32)
72
+
73
+ def get_cube_vertices():
74
+ # Cube vertices (8 vertices)
75
+ return torch.tensor([[1, 1, 1],
76
+ [1, 1, -1],
77
+ [1, -1, 1],
78
+ [1, -1, -1],
79
+ [-1, 1, 1],
80
+ [-1, 1, -1],
81
+ [-1, -1, 1],
82
+ [-1, -1, -1]], dtype=torch.float32) # Ensure float type
83
+
84
+
85
+ def render(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
86
+ # prepare the camera
87
+ num_views = 8
88
+ # Get the cube vertices
89
+ #cube_vertices = get_cube_vertices()*scale
90
+ cube_vertices = sample_points_on_sphere(num_views)*scale
91
+ #up = torch.randn(1, 3)
92
+ up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
93
+ up = up / torch.norm(up, dim=1)[:, None]
94
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
95
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
96
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
97
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
98
+
99
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
100
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
101
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
102
+ in_ndc=False)
103
+
104
+ # prepare the lights
105
+ raster_settings = RasterizationSettings(image_size=image_size)
106
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None], ambient_color=(light,),diffuse_color=(light,),device=device)
107
+
108
+ # move the data to the device
109
+ meshes = meshes.to(device)
110
+ cameras = cameras.to(device)
111
+ if len(cameras) != 1 and len(cameras) % len(meshes) != 0:
112
+ raise ValueError("Mismatch between batch dims of cameras and meshes.")
113
+ if len(cameras) > 1:
114
+ meshes = meshes.extend(len(cameras) // len(meshes))
115
+
116
+ # prepare the renderer
117
+ class MeshRendererWithDepth(torch.nn.Module):
118
+ def __init__(self, rasterizer, shader):
119
+ super().__init__()
120
+ self.rasterizer = rasterizer
121
+ self.shader = shader
122
+
123
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
124
+ fragments = self.rasterizer(meshes_world, **kwargs)
125
+ images = self.shader(fragments, meshes_world, **kwargs)
126
+ return images, fragments.zbuf
127
+
128
+
129
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
130
+ renderer = MeshRendererWithDepth(
131
+ rasterizer=MeshRasterizer(
132
+ cameras=cameras,
133
+ raster_settings=raster_settings,
134
+ ),
135
+ # Set background color to blue [R, G, B]
136
+
137
+ shader=HardPhongShader(
138
+ device=device,
139
+ cameras=cameras,
140
+ lights=lights,
141
+ blend_params=blend_params
142
+ )
143
+ )
144
+
145
+ images,fragments = renderer(meshes)
146
+ return images,fragments,cameras
147
+
148
+
149
+ def render_batch(meshes,scale=3.0,image_size=(420,420),light=(0.3,0.3,0.3)):
150
+ # prepare the camera
151
+ num_views = 8
152
+ # Get the cube vertices
153
+ cube_vertices = get_cube_vertices()*scale
154
+ #cube_vertices = sample_points_on_sphere(num_views)*scale
155
+ up = torch.randn(1, 3)
156
+ # up=torch.tensor([[0.0, 0.0, 1.0]], dtype=torch.float32)
157
+ up = up / torch.norm(up, dim=1)[:, None]
158
+ R, T = look_at_view_transform(eye=cube_vertices, at=torch.tensor([[0.0, 0.0, 0.0]], dtype=torch.float32), up=up)
159
+
160
+ cam_K= np.array([[572, 0.0, image_size[0]//2], [0.0, 572, image_size[1]//2], [0.0, 0.0, 1.0]])
161
+ fx,_,cx,_,fy,cy,_,_,_=cam_K.reshape(9)
162
+ fov_x, fov_y = _compute_fov(cam_K, 420, 420)
163
+
164
+
165
+ # prepare the renderer
166
+ class MeshRendererWithDepth(torch.nn.Module):
167
+ def __init__(self, rasterizer, shader):
168
+ super().__init__()
169
+ self.rasterizer = rasterizer
170
+ self.shader = shader
171
+
172
+ def forward(self, meshes_world, **kwargs) -> torch.Tensor:
173
+ fragments = self.rasterizer(meshes_world, **kwargs)
174
+ images = self.shader(fragments, meshes_world, **kwargs)
175
+ return images, fragments.zbuf
176
+
177
+
178
+ blend_params = BlendParams(background_color=(0.0, 0.0, 0.0)) # Blue background
179
+
180
+ batch_size = 10
181
+ all_images=[]
182
+ all_fragments=[]
183
+
184
+ # move the data to the device
185
+ meshes = meshes.extend(batch_size).to(device)
186
+ for i in range(0,R.shape[0],batch_size):
187
+ R_batch = R[i:i+batch_size]
188
+ T_batch = T[i:i+batch_size]
189
+ cameras_batch = PerspectiveCameras(device=device, R=R_batch, T=T_batch, image_size=((420,420),),
190
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
191
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
192
+ in_ndc=False).to(device)
193
+
194
+ # prepare the lights
195
+ raster_settings = RasterizationSettings(image_size=image_size)
196
+ lights = PointLights(location=torch.tensor([0.0, 1.0, -2.0], device=device)[None],
197
+ ambient_color=(light,),diffuse_color=(light,),device=device)
198
+
199
+ renderer = MeshRendererWithDepth(
200
+ rasterizer=MeshRasterizer(
201
+ cameras=cameras_batch,
202
+ raster_settings=raster_settings,
203
+ ),
204
+ # Set background color to blue [R, G, B]
205
+ shader=HardPhongShader(
206
+ device=device,
207
+ cameras=cameras_batch,
208
+ lights=lights,
209
+ blend_params=blend_params
210
+ )
211
+ )
212
+ images,fragments = renderer(meshes)
213
+ all_images.append(images)
214
+ all_fragments.append(fragments)
215
+ all_images = torch.cat(all_images,dim=0)
216
+ all_fragments = torch.cat(all_fragments,dim=0)
217
+ cameras = PerspectiveCameras(device=device, R=R, T=T, image_size=((420,420),),
218
+ focal_length=torch.tensor([[fx, fy]], dtype=torch.float32),
219
+ principal_point=torch.tensor([[cx, cy]], dtype=torch.float32),
220
+ in_ndc=False).to(device)
221
+ return all_images,all_fragments,cameras
222
+
223
+
224
+ def fuse_feature_rgbd(extractor,images,fragments,cameras):
225
+ dino_feat_masked_list = []
226
+ feature_point_cloud_list = []
227
+ for i in range(images.shape[0]):
228
+ image = images.cpu().numpy()[i, :, :, :3]
229
+ image_mask = images[i, ..., 3].cpu().numpy()!=0
230
+ crop_size = (420, 420)
231
+ crop_image, crop_mask, bbox = center_crop(image, image_mask, crop_size)
232
+ cropped_image_np = cv2.resize(crop_image, crop_size, interpolation=cv2.INTER_AREA)
233
+ #cropped_mask = cv2.resize(crop_mask*1.0, crop_size, interpolation=cv2.INTER_NEAREST)!=0 # Use nearest neighbor interpolation for masks
234
+ orignal_size = (int(bbox[2]-bbox[0]), int(bbox[3]-bbox[1])) #K,K
235
+
236
+ to_tensor = transforms.ToTensor()
237
+ input_image = to_tensor(cropped_image_np).cuda()
238
+ input_image = input_image.unsqueeze(0)
239
+ #input_image=extractor.preprocess_pil(input_image)
240
+ mean = torch.tensor([0.485, 0.456, 0.406]).cuda()
241
+ std = torch.tensor([0.229, 0.224, 0.225]).cuda()
242
+ input_image = (input_image - mean[None, :, None, None]) / std[None, :, None, None]
243
+
244
+ _desc_q = extractor.extract_descriptors(input_image,layer=11,include_cls=True).squeeze(1) # (1,900,384)
245
+ #_desc_q = extractor.forward_features(input_image)["x_prenorm"][:, :] # (1,900,384)
246
+ #_desc_q = extractor.extract_descriptors(input_image,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
247
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
248
+ # _desc_q = _desc_q / (_norm_q)
249
+
250
+ desc = _desc_q[:,1:,:][None]
251
+ #cls_token_q = _desc_q[:,0,:] #B,C`
252
+
253
+ input_mask = to_tensor(crop_mask).cuda()
254
+ input_mask = input_mask.unsqueeze(0)
255
+
256
+ img_mask = to_tensor(image_mask)
257
+
258
+ img_mask = img_mask.permute(1,2,0)
259
+
260
+ dino_feat = patch2pixel_feats(desc, original_size=orignal_size) #reize back to K,K =>( K, K, 384)
261
+ # create dino-feat with orignal size
262
+ dino_height, dino_width, feat_dim = (image_size[0],image_size[1], desc.shape[-1])
263
+ dino_feat_orig = torch.zeros(dino_height,dino_width,feat_dim)
264
+ # Fill the dino features into the original tensor at the specified bounding box
265
+ dino_feat_orig[bbox[1]:bbox[3], bbox[0]:bbox[2],:] = dino_feat #reize back to K,K =>(420, 420, 384) #gradint is not supported for this operation
266
+ # Apply the mask
267
+ dino_feat_masked = dino_feat_orig * img_mask
268
+ dino_feat_masked = dino_feat_masked.permute(2,0,1).unsqueeze(0)
269
+ dino_feat_masked_low = F.interpolate(dino_feat_masked, size=(30, 30), mode='bilinear')
270
+
271
+ image_mask = images[i, ..., 3][None,None]
272
+ depth_image = fragments[i, ..., 0][None]*image_mask
273
+
274
+ # # Define the kernel for erosion (3x3 ones kernel)
275
+ # kernel = torch.ones((1, 1, 5, 5), dtype=torch.float).cuda()
276
+ # # Number of erosion iterations
277
+ # iterations = 5
278
+
279
+ # # Perform iterative erosion
280
+ # for i in range(iterations):
281
+ # # Apply erosion using 2D convolution
282
+ # eroded_mask = F.conv2d(image_mask, kernel, padding=2)
283
+ # image_mask = (eroded_mask == kernel.sum()).float() # Update mask to eroded version
284
+
285
+ feature_point_cloud = get_rgbd_point_cloud(cameras[i], dino_feat_masked.to(device), depth_map=depth_image,mask=image_mask)#everthing on GPU
286
+
287
+ index = np.random.choice(feature_point_cloud.points_list()[0].shape[0], 4096, replace=True)
288
+ points = feature_point_cloud.points_list()[0].detach().cpu()[index,:]
289
+ colors = feature_point_cloud.features_list()[0].detach().cpu()[index,:]
290
+ # points = feature_point_cloud.points_list()[0].detach().cpu()[:,:]
291
+ # colors = feature_point_cloud.features_list()[0].detach().cpu()[:,:]
292
+ feature_point_cloud = torch.cat((points, colors), dim=1)
293
+
294
+ dino_feat_masked_list.append(dino_feat_masked_low.detach().cpu())
295
+ feature_point_cloud_list.append(feature_point_cloud)
296
+ feature_point_cloud = torch.cat(feature_point_cloud_list, dim=0)
297
+ dino_feat_masked = torch.cat(dino_feat_masked_list, dim=0)
298
+ return feature_point_cloud,dino_feat_masked, feature_point_cloud_list
299
+
300
+
301
+ def downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts=1024,k_nearest_neighbors=100, instance_points=None):
302
+ #N_1, C_1 = 2048, 384 # Example number of points and features
303
+ num_points_to_sample = num_pts
304
+ k_nearest_neighbors = k_nearest_neighbors
305
+
306
+ # Example input pointcloud and features (N_1, C_1), where N_1 is the number of points and C_1 is the feature dimension
307
+ pointcloud = feature_point_cloud[None,:,:3].cuda() # Shape (1, N_1, 3) for 3D coordinates
308
+ features = feature_point_cloud[None,:,3:].cuda() # Shape (1, N_1, C_1) for features
309
+
310
+ # Step 1: FPS to downsample the points
311
+ # We use sample_farthest_points to select num_points_to_sample points
312
+ sampled_points, sampled_indices = sample_farthest_points(pointcloud, K=num_points_to_sample) # Shape: (1, 1024, 3), (1, 1024)
313
+ if instance_points is not None:
314
+ sampled_points = instance_points
315
+
316
+ # Step 2: KNN to find nearest neighbors
317
+ # Find the k nearest neighbors for each sampled point in the original pointcloud
318
+ dists, knn_indices, _ = knn_points(sampled_points, pointcloud, K=k_nearest_neighbors, return_nn=False)
319
+
320
+ # Step 3: Gather the features of the k-nearest neighbors using the knn indices
321
+ # Use knn_gather to get neighbor features for each sampled point
322
+ neighbor_features = knn_gather(features, knn_indices) # Shape: (1, 1024, k, C_1)
323
+
324
+ # Step 4: Aggregate features from the neighbors (e.g., by averaging)
325
+ #aggregated_features,_ = torch.max(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
326
+ aggregated_features = torch.mean(neighbor_features,dim=-2) # Shape: (1, 1024, C_1)
327
+ return sampled_points, aggregated_features
328
+
329
+
330
+ def vis_pca(feature):
331
+ n_components=3 # the first component is to seperate the object from the background
332
+
333
+ pca = sklearnPCA(n_components=n_components)
334
+ feature = pca.fit_transform(feature.detach().cpu().numpy())
335
+ for show_channel in range(n_components):
336
+ # min max normalize the feature map
337
+ feature[:, show_channel] = (feature[:, show_channel] - feature[:, show_channel].mean()) / (feature[:, show_channel].std()*10)
338
+ feature_resized = np.clip(feature[:,:]+0.5,0,1)
339
+ return feature_resized
340
+
341
+
342
+ def patch2pixel_feats(patch_features, original_size):
343
+ # Calculate the number of patches along each dimension
344
+ num_patches = int(math.sqrt(patch_features.shape[2]))
345
+
346
+ batch_num = patch_features.shape[0]
347
+ feat_dim = patch_features.shape[3]
348
+ patch_features = patch_features.reshape(batch_num, num_patches, num_patches, feat_dim)
349
+ patch_features = patch_features.permute(0,3,1,2)
350
+
351
+ pixel_features = F.interpolate(patch_features, size=(original_size[0], original_size[1]), mode='bilinear')
352
+ pixel_features = pixel_features.squeeze().permute(1,2,0)
353
+
354
+ return pixel_features
355
+
356
+ def vis_pca_pixelwise(feature):
357
+ n_components = 4 # The number of PCA components to use
358
+ batch, feat_dim, height,width = feature.shape
359
+
360
+ # Reshape the feature to (num_pixels, feat_dim)
361
+ num_pixels = height * width
362
+ feature_reshaped = np.array(feature).transpose(0,2,3,1).reshape(-1, feat_dim)
363
+
364
+
365
+ # Apply PCA
366
+ pca = sklearnPCA(n_components=n_components)
367
+ feature_pca = pca.fit_transform(feature_reshaped)
368
+
369
+ # Min-max normalization for each component
370
+ # for show_channel in range(n_components):
371
+ # feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].min()) / \
372
+ # (feature_pca[:, show_channel].max() - feature_pca[:, show_channel].min() + 1e-8) # Small epsilon to avoid division by zero
373
+ for show_channel in range(n_components):
374
+ feature_pca[:, show_channel] = (feature_pca[:, show_channel] - feature_pca[:, show_channel].mean()) / \
375
+ (feature_pca[:, show_channel].std()*10 + 1e-8) # Small epsilon to avoid division by zero
376
+
377
+ feature_pca = np.clip(feature_pca+0.5, 0, 1)
378
+ # Reshape the PCA result back to (height, width, n_components)
379
+ feature_resized = feature_pca.reshape(batch,height,width,n_components)[...,1:4]
380
+ return feature_resized
381
+
382
+ def normalize_mesh_verts(data):
383
+ # data [N, 3]
384
+ min_vals, _ = torch.min(data, dim=0)
385
+ max_vals, _ = torch.max(data, dim=0)
386
+ bbox_sizes = max_vals - min_vals
387
+ scale = torch.norm(bbox_sizes)
388
+ print("Scale:", scale)
389
+ normalized_verts = verts / scale
390
+ return normalized_verts
391
+
392
+ def plot_pointclouds_with_color_mapping(pc1_f, pc2_f,pc1,pc2, query_points, similarity_threshold=None):
393
+ """
394
+ Visualizes two 3D point clouds. The second point cloud (pc2) is color-mapped
395
+ using the 'viridis' colormap based on its similarity (proximity) to the sampled
396
+ query points in the first point cloud (pc1).
397
+
398
+ Parameters:
399
+ - pc1: np.ndarray of shape (N, 3), first point cloud #partial
400
+ - pc2: np.ndarray of shape (M, 3), second point cloud # global
401
+ - query_points: list of indices in pc1, representing the query points to compare.
402
+ - similarity_threshold: float, optional, threshold to cap the similarity distance.
403
+ """
404
+
405
+
406
+ pc1_f = pc1_f / np.linalg.norm(pc1_f, axis=1)[:, None] # Normalize the features
407
+ pc2_f = pc2_f / np.linalg.norm(pc2_f, axis=1)[:, None] # Normalize the features
408
+ # Create a figure with subplots
409
+ fig = plt.figure(figsize=(12, 10))
410
+ num_query_points = len(query_points)
411
+ # Set limits and labels
412
+ size = pc2.max() - pc2.min()
413
+ # Plot the first point cloud in the first subplot
414
+ ax1 = fig.add_subplot(1, num_query_points + 1, 1, projection='3d')
415
+ ax1.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color='grey', label='Point Cloud 1 (Left)', alpha=0.1,s=10)
416
+
417
+ # Define a color list for each query point
418
+ query_colors = cm.tab10(np.linspace(0, 1, num_query_points)) # Use tab10 colormap for distinct colors
419
+
420
+ # Highlight query points in pc1 with different colors
421
+ for i, idx in enumerate(query_points):
422
+ ax1.scatter(pc1[idx, 0], pc1[idx, 1], pc1[idx, 2],
423
+ color=query_colors[i], s=100, edgecolor='k', label=f'Query Point {idx}')
424
+
425
+ ax1.set_title('Point Cloud 1 with Query Points')
426
+ ax1.set_xlabel('X')
427
+ ax1.set_ylabel('Y')
428
+ ax1.set_zlabel('Z')
429
+ ax1.set_xlim(-size / 1.4, size / 1.4)
430
+ ax1.set_ylim(-size / 1.4, size / 1.4)
431
+ ax1.set_zlim(-size / 1.4, size / 1.4)
432
+ ax1.view_init(elev=45, azim=-45)
433
+ ax1.grid(True)
434
+ ax1.legend()
435
+
436
+ # Plot the second point cloud in the subsequent subplots
437
+ for k in range(num_query_points):
438
+
439
+ ax = fig.add_subplot(1, num_query_points + 1, k + 2, projection='3d')
440
+
441
+ # Calculate distances between query points in pc1 and all points in pc2
442
+ similarity =(pc1_f[query_points[k]][None]@ pc2_f.T).reshape(-1) # (1, 3) x (M, 3) = (1, M)
443
+ # For each point in pc2, take the minimum distance to any query point
444
+ min_similarity = np.min(similarity, axis=0)
445
+ # Optionally cap the similarity distances to a threshold (to avoid extreme values)
446
+ similarity_threshold= 0.3
447
+ if similarity_threshold is not None:
448
+ similarity = np.clip(similarity, similarity_threshold,1)
449
+ # Normalize the distances to a range of 0 to 1 for colormap mapping
450
+ similarity = (similarity - np.min(similarity)) / (np.max(similarity) - np.min(similarity))
451
+ colors = cm.plasma(similarity)
452
+
453
+ # Plot the second point cloud with color mapping based on similarity
454
+ ax.scatter(pc2[:, 0], pc2[:, 1], pc2[:, 2], color=colors, s=15, alpha=1.0, label='Point Cloud 2 (Right)', edgecolor='k')
455
+
456
+ ax.set_xlim(-size / 1.4, size / 1.4)
457
+ ax.set_ylim(-size / 1.4, size / 1.4)
458
+ ax.set_zlim(-size / 1.4, size / 1.4)
459
+ ax.set_title(f'QP_{query_points[k]}')
460
+ ax.set_xlabel('X')
461
+ ax.set_ylabel('Y')
462
+ ax.set_zlabel('Z')
463
+ ax.view_init(elev=45, azim=-45)
464
+ ax.grid(True)
465
+ ax.legend()
466
+
467
+ # Show the plot
468
+ plt.tight_layout()
469
+ plt.show()
470
+
471
+
472
+ def plot_pointclouds_3d_with_copca_old(global_sem_pcd, partial_sem_pcd, global_pcd, partial_pcd):
473
+ """
474
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
475
+
476
+ Parameters:
477
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
478
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
479
+ """
480
+
481
+
482
+ n_components = 3
483
+ # Step 1: Perform PCA on both global and partial point clouds
484
+ sem_pca = PCA(n_components=n_components)
485
+ sem_pca = sem_pca.fit(global_sem_pcd) # shape (N+M, 3)
486
+
487
+ transformed_sem_pcd_list = [sem_pca.transform(pcd) for pcd in [global_sem_pcd,partial_sem_pcd]]
488
+ sem_pcd_pca = np.concatenate(transformed_sem_pcd_list,axis=0)
489
+ for show_channel in range(n_components):
490
+ sem_pcd_pca[:, show_channel] = (sem_pcd_pca[:, show_channel] - sem_pcd_pca[:, show_channel].mean()) / \
491
+ (sem_pcd_pca[:, show_channel].std()*5 + 1e-8) # Small epsilon to avoid division by zero
492
+
493
+ # sem_pcd_pca_min = sem_pcd_pca.min()
494
+ # sem_pcd_pca_max = sem_pcd_pca.max()
495
+ # sem_pcd_pca = (sem_pcd_pca- sem_pcd_pca_min) / (sem_pcd_pca_max - sem_pcd_pca_min) # Normalize to [0, 1]
496
+
497
+ sem_pcd_pca = np.clip(sem_pcd_pca[:,:]+0.5, 0, 1)
498
+ global_pca = sem_pcd_pca[:global_sem_pcd.shape[0]] # shape (N, 3)
499
+ partial_pca = sem_pcd_pca[-partial_sem_pcd.shape[0]:] # shape (M, 3)
500
+
501
+ # Step 2: Create a 3D scatter plot
502
+ fig = plt.figure(figsize=(12, 6))
503
+ ax = fig.add_subplot(121, projection='3d')
504
+
505
+
506
+ # Global point cloud
507
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
508
+ c=global_pca, marker='o', s=100, alpha=1.0, label='Global Point Cloud')
509
+
510
+ # Set labels for each axis
511
+ # ax.set_xlabel('X axis')
512
+ # ax.set_ylabel('Y axis')
513
+ # ax.set_zlabel('Z axis')
514
+ ax.set_xlim(-0.5, 0.5)
515
+ ax.set_ylim(-0.5, 0.5)
516
+ ax.set_zlim(-0.5, 0.5)
517
+
518
+ ax1 = fig.add_subplot(122, projection='3d')
519
+
520
+ # Partial point cloud
521
+ ax1.scatter(partial_pcd[:, 0], partial_pcd[:, 1], partial_pcd[:, 2],
522
+ c=partial_pca, marker='o', s=100, alpha=1.0, label='Partial Point Cloud')
523
+
524
+ # ax1.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
525
+ # marker='o', s=10, alpha=0.1)
526
+ # Set labels for each axis
527
+ # ax1.set_xlabel('X axis')
528
+ # ax1.set_ylabel('Y axis')
529
+ # ax1.set_zlabel('Z axis')
530
+
531
+
532
+ ax1.set_xlim(-0.5, 0.5)
533
+ ax1.set_ylim(-0.5, 0.5)
534
+ ax1.set_zlim(-0.5, 0.5)
535
+ plt.tight_layout()
536
+
537
+ ax.view_init(120,-95)
538
+ ax1.view_init(120,-95)
539
+
540
+
541
+ ax.set_axis_off()
542
+ ax.set_facecolor((0, 0, 0, 0))
543
+ ax1.set_axis_off()
544
+ ax1.set_facecolor((0, 0, 0, 0))
545
+
546
+ plt.show()
547
+
548
+
549
+ def plot_pointclouds_3d_with_pca(global_sem_pcd, global_pcd):
550
+ """
551
+ Visualizes two point clouds in 3D, coloring them based on their PCA components.
552
+
553
+ Parameters:
554
+ - global_pointcloud: numpy array of shape (N, D) for global point cloud.
555
+ - partial_pointcloud: numpy array of shape (M, D) for partial point cloud.
556
+ """
557
+ #sem_pcd = np.concatenate((global_sem_pcd,partial_sem_pcd), axis=0) # shape (N+M, D)
558
+
559
+ # Step 1: Perform PCA on both global and partial point clouds
560
+ sem_pca = PCA(n_components=3)
561
+ sem_pcd_pca = sem_pca.fit_transform(global_sem_pcd) # shape (N+M, 3)
562
+
563
+ for i in range(3): # Iterate over each component (3 in total for RGB)
564
+ sem_pcd_pca_mean = sem_pcd_pca[:, i].mean()
565
+ sem_pcd_pca_std = sem_pcd_pca[:, i].std()
566
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - sem_pcd_pca_mean) / (sem_pcd_pca_std*5+1e-8) # Normalize to [0, 1]
567
+
568
+
569
+ global_pca = np.clip(sem_pcd_pca+0.5,0,1)
570
+ # scatter plot
571
+ fig = plt.figure(figsize=(6, 6))
572
+ ax = fig.add_subplot(111, projection='3d')
573
+
574
+ # Global point cloud
575
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
576
+ c=global_pca, marker='o', s=50, alpha=1.0, label='Global Point Cloud')
577
+
578
+ # Remove axes and background
579
+ ax.set_axis_off()
580
+
581
+ # Set background color to none
582
+ ax.set_facecolor((0, 0, 0, 0))
583
+ # # Set labels for each axis
584
+ # ax.set_xlabel('X axis')
585
+ # ax.set_ylabel('Y axis')
586
+ # ax.set_zlabel('Z axis')
587
+ ax.set_xlim(-0.5, 0.5)
588
+ ax.set_ylim(-0.5, 0.5)
589
+ ax.set_zlim(-0.5, 0.5)
590
+
591
+ ax.view_init(-73,102)
592
+
593
+ return fig
594
+
595
+
596
+ def plot_pointclouds_3d_with_copca(global_sem_pcd_list, global_pcd_list,co_pca=True):
597
+ """
598
+ Visualizes multiple point clouds in 3D, each in a separate subplot, after applying CoPCA.
599
+ Coloring them based on their PCA components.
600
+
601
+ Parameters:
602
+ - global_sem_pcd_list: list of numpy arrays for semantic point clouds (one per object).
603
+ - global_pcd_list: list of numpy arrays for global point clouds (one per object).
604
+ """
605
+ num_pcds = len(global_sem_pcd_list) # Number of point clouds
606
+ print("Number of point clouds to visualize:", num_pcds)
607
+ # Step 1: Perform CoPCA (Common PCA) on the semantic point clouds
608
+ # Concatenate all point clouds to perform common PCA
609
+ if co_pca:
610
+ concatenated_pcds = np.concatenate(global_sem_pcd_list, axis=0) # shape (N_total, D)
611
+ copca = PCA(n_components=3, random_state=0)
612
+ copca.fit(concatenated_pcds[:1024]) # Fit PCA on all point clouds together
613
+ transformed_sem_pcd_list = [copca.transform(pcd) for pcd in global_sem_pcd_list]
614
+
615
+
616
+ signs = np.sign(np.sum(transformed_sem_pcd_list[0], axis=0))
617
+ # Post-process to ensure consistent orientation of PCA components
618
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
619
+ # For each component (column), align sign based on the sum of values in the column
620
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
621
+ else:
622
+ copca = PCA(n_components=3)
623
+ transformed_sem_pcd_list = [copca.fit_transform(pcd) for pcd in global_sem_pcd_list]
624
+ # Post-process to ensure consistent orientation of PCA components
625
+ for i, transformed_pcd in enumerate(transformed_sem_pcd_list):
626
+ signs = np.sign(np.sum(transformed_pcd, axis=0))
627
+ # For each component (column), align sign based on the sum of values in the column
628
+ transformed_sem_pcd_list[i] = transformed_pcd * signs
629
+
630
+
631
+
632
+ # Create a figure with subplots arranged in a grid (based on number of point clouds)
633
+ fig = plt.figure(figsize=(6 * num_pcds, 6)) # Adjust figure size based on the number of subplots
634
+
635
+ # Loop over the point clouds
636
+ for idx, (sem_pcd_pca, global_pcd) in enumerate(zip(transformed_sem_pcd_list, global_pcd_list)):
637
+ ax = fig.add_subplot(1, num_pcds, idx + 1, projection='3d')
638
+
639
+ # Step 2: Normalize the PCA-transformed data to use as colors
640
+ for i in range(3): # Iterate over each component (3 in total for RGB)
641
+ pca_mean = sem_pcd_pca[:, i].mean()
642
+ pca_std = sem_pcd_pca[:, i].std()
643
+ sem_pcd_pca[:, i] = (sem_pcd_pca[:, i] - pca_mean) / (pca_std * 5 + 1e-8) # Normalize
644
+
645
+ global_pca_colors = np.clip(sem_pcd_pca + 0.5, 0, 1) # Map to [0, 1] for RGB
646
+
647
+ # Scatter plot for this point cloud in the current subplot
648
+ ax.scatter(global_pcd[:, 0], global_pcd[:, 1], global_pcd[:, 2],
649
+ c=global_pca_colors, marker='o', s=50, alpha=1.0)
650
+
651
+ # Remove axes and background
652
+ ax.set_axis_off()
653
+ ax.set_facecolor((0, 0, 0, 0))
654
+
655
+ # Set axis limits for each subplot
656
+ ax.set_xlim(-0.5, 0.5)
657
+ ax.set_ylim(-0.5, 0.5)
658
+ ax.set_zlim(-0.5, 0.5)
659
+
660
+ # Set view angle
661
+ ax.view_init(-55, 102)
662
+
663
+ # Adjust spacing between subplots
664
+ plt.tight_layout()
665
+
666
+ return fig
667
+
668
+
669
+
670
+ def unnormalize(x):
671
+ # x.shape : [H,W,3]
672
+ mean = np.array([0.485, 0.456, 0.406])
673
+ std = np.array([0.229, 0.224, 0.225])
674
+ return x * std + mean
675
+
676
+
677
+ from custom_utils.housecat6d_dataset import HouseCat6DTrainingDataset
678
+ trainset = HouseCat6DTrainingDataset(image_size=420, sample_num=1024,data_dir='/media/xyz/data1/HouseCat6D')
679
+
680
+ vis = True
681
+ device = "cuda"
682
+ import matplotlib
683
+ import open3d as o3d
684
+ from pytorch3d.io import load_objs_as_meshes
685
+ import trimesh
686
+ matplotlib.use('TkAgg')
687
+
688
+ #cat_list = ['bottle','box','can','cup','cutlery','remote','shoe','tube','teapot']
689
+ cat_list = ['cup']
690
+
691
+
692
+ sem_global_list = []
693
+ sem_global_pcd_list = []
694
+
695
+ # # load semantc feature and show
696
+ # ########################################
697
+ save_dir = 'Yung/yung_large_files/semantic_feature/test_notebook/8v'
698
+ # #save_dir = './80views_textured_token'
699
+ # if True:
700
+ # for cat in cat_list:
701
+ # # # orriginal
702
+ # # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
703
+ # # instances = [line.strip() for line in f.readlines()]
704
+
705
+ # # print(instances)
706
+ # # revised
707
+ # # instance try cup-grey_handle
708
+ # instances = ['cup-grey_handle']
709
+ # sem_global_list = []
710
+ # sem_global_pcd_list = []
711
+
712
+ # # Load the mean shape point cloud
713
+ # meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
714
+ # meanshape_pcd_np = np.loadtxt(meanshape_path)
715
+
716
+ # meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
717
+ # M = meanshape_pcd_tensor.shape[0]
718
+ # meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float()
719
+ # #make sure map to cuda0
720
+ # average_aggregated_features = torch.load(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v_key/sem_cat_pcd_untex/{cat}_dino_feature.pt', map_location={"cuda:1": "cuda:0"})
721
+ # sem_global_pcd_list.append(meanshape_points[0])
722
+ # sem_global_list.append(average_aggregated_features[0].detach().cpu())
723
+ # #fig =plot_pointclouds_3d_with_pca(average_aggregated_features[0].detach().cpu(),meanshape_points[0])
724
+ # #fig.savefig('test.png')
725
+ # for j,instance in enumerate(instances):
726
+ # #break
727
+ # print("Processing", instance)
728
+ # #obj_path = f'/media/xyz/data/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
729
+ # #instance_pcd_tensor = torch.load(f'{save_dir}/saved_pcd_untex/{cat}/{instance}_pcd.pt')[0]
730
+ # #obj_path = f'/media/xyz/data1/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
731
+ # # instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
732
+ # # instance_pcd_np = np.loadtxt(instance_pcd_path)
733
+ # instance_pcd_path = f'Yung/yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/input_pca.ply'
734
+ # pcd = o3d.io.read_point_cloud(instance_pcd_path)
735
+ # instance_pcd_np = np.asarray(pcd.points)
736
+
737
+ # # Rotate 180 degrees around y axis
738
+ # rotation_matrix = np.array([
739
+ # [-1, 0, 0],
740
+ # [0, 1, 0],
741
+ # [0, 0, -1]
742
+ # ])
743
+ # instance_pcd_np = instance_pcd_np @ rotation_matrix.T
744
+
745
+
746
+ # # Load the instance point cloud
747
+ # instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
748
+ # N = instance_pcd_tensor.shape[0]
749
+ # instance_points = instance_pcd_tensor.view(1, N, 3).float()
750
+ # try:
751
+ # # aggregated_features = torch.load(f'{save_dir}/saved_dino_pcd_untex/{cat}/{instance}_dino_feature.pt')
752
+ # aggregated_features = average_aggregated_features
753
+ # except:
754
+ # print(f"Warning: {instance} not found.")
755
+ # continue
756
+ # # plot_pointclouds_3d_with_pca(aggregated_features[0].detach().cpu(),
757
+ # # instance_points[0])
758
+ # sem_global_pcd_list.append(instance_points[0].detach().cpu())
759
+ # sem_global_list.append(aggregated_features[0].detach().cpu())
760
+ # if len(sem_global_list)>4:
761
+ # break
762
+
763
+ # fig = plot_pointclouds_3d_with_copca(sem_global_list,sem_global_pcd_list,co_pca=True)
764
+ # fig.savefig(f'./{save_dir}/{cat}_sam3d.png')
765
+ # ###############################
766
+
767
+
768
+ model_dict={'small':'dinov2_vits14',
769
+ 'base':'dinov2_vitb14',
770
+ 'large':'dinov2_vitl14',
771
+ 'giant':'dinov2_vitg14'}
772
+ extractor = ViTExtractor(model_dict['small'],14)
773
+ # use GPPU0
774
+ extractor.model = extractor.model.cuda(0) # the stride of first conv control outputs resolution
775
+
776
+ # extractor = torch.hub.load('facebookresearch/dinov2', model_dict['small'], pretrained=True).cuda()
777
+
778
+
779
+ # cat_list = ['bottle','box','can','cup','cutlery','glass','remote','shoe','tube','teapot']
780
+ cat_list = ['cup']
781
+
782
+ #cat_list = ['teapot']
783
+ #TODO: if condition for tex rendering
784
+ for cat in cat_list:
785
+ # # orriginal
786
+ # with open(f'/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/housecat_{cat}/raw/housecat1_train.txt', 'r') as f:
787
+ # instances = [line.strip() for line in f.readlines()]
788
+
789
+ # print(instances)
790
+ #revised
791
+ # # instance try cup-grey_handle
792
+ # instances = ['cup-grey_handle']
793
+
794
+ # instance try cup-grey_handle
795
+ instances = ['cup-grey_handle']
796
+
797
+
798
+ aggregated_features_list = [] # N * [1, 1024, 384]
799
+ # Load the mean shape point cloud
800
+ meanshape_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/mean_shape/mean_shape_pcd_1.txt'
801
+ meanshape_pcd_np = np.loadtxt(meanshape_path)
802
+ meanshape_pcd_tensor = torch.from_numpy(meanshape_pcd_np)
803
+ M = meanshape_pcd_tensor.shape[0]
804
+ # modify for cuda0
805
+ meanshape_points = meanshape_pcd_tensor.view(1, M, 3).float().cuda(0)
806
+
807
+
808
+ for j,instance in enumerate(instances):
809
+ # #original
810
+ # # if instance != 'bottle-85_alcool':
811
+ # # continue
812
+ # print("Processing", instance)
813
+ # obj_path = f'pose_dataset/HouseCat6D/obj_models_small_size_final/{cat}/{instance}.obj'
814
+ # instance_pcd_path = f'Yung/yung_large_files/semantic_feature/test_notebook/saved_pcd/{cat}/test/{instance}.txt'
815
+
816
+ # # Load the instance point cloud
817
+ # instance_pcd_np = np.loadtxt(instance_pcd_path)
818
+ # try:
819
+ # verts, faces, aux = load_obj(obj_path)
820
+ # except ValueError as e:
821
+ # print(f"Warning: {e}, attempting to load without material.")
822
+
823
+ # try:
824
+ # verts, faces, aux = load_obj(obj_path, load_textures=True)
825
+ # except ValueError as e2:
826
+ # print(f"Failed to load {obj_path} without material: {e2}")
827
+ # continue
828
+ # meshes = Meshes(verts=[verts], faces=[faces.verts_idx], textures=None)
829
+
830
+ #modify for sam3d
831
+ print("Processing", instance)
832
+ obj_path = f'/mnt/4T/Yung/pose_repo_temp/sam-3d-objects/notebook/gaussians/single/housecat6d_relight/000000_relight_msr_000000_cup-grey_handle.ply'
833
+ instance_pcd_path = obj_path
834
+ pcd = o3d.io.read_point_cloud(instance_pcd_path)
835
+ instance_pcd_np = np.asarray(pcd.points)
836
+ instance_pcd_tensor = torch.from_numpy(instance_pcd_np)
837
+ N = instance_pcd_tensor.shape[0]
838
+ # modify for cuda0
839
+ instance_points = instance_pcd_tensor.view(1, N, 3).float().cuda(0)
840
+
841
+ try:
842
+ pcd = o3d.io.read_point_cloud(obj_path)
843
+ pcd.estimate_normals(
844
+ search_param=o3d.geometry.KDTreeSearchParamHybrid(
845
+ radius=0.02,
846
+ max_nn=30
847
+ )
848
+ )
849
+
850
+ # Poisson
851
+ mesh, densities = o3d.geometry.TriangleMesh.create_from_point_cloud_poisson(
852
+ pcd, depth=8
853
+ )
854
+
855
+ # Density trimming
856
+ densities = np.asarray(densities)
857
+ mesh = mesh.select_by_index(
858
+ np.where(densities > np.quantile(densities, 0.05))[0]
859
+ )
860
+
861
+ # Keep largest component
862
+ clusters, counts, _ = mesh.cluster_connected_triangles()
863
+ clusters = np.asarray(clusters)
864
+ counts = np.asarray(counts)
865
+ mesh.remove_triangles_by_mask(clusters != counts.argmax())
866
+ mesh.remove_unreferenced_vertices()
867
+
868
+ verts = np.asarray(mesh.vertices)
869
+ faces = np.asarray(mesh.triangles)
870
+ print(f"Loaded PLY with {verts.shape[0]} vertices and {faces.shape[0]} faces.")
871
+
872
+ # Extract texture colors from point cloud
873
+ tex = None
874
+ if pcd.has_colors():
875
+ print("Point cloud has colors, extracting texture.")
876
+ colors = np.asarray(pcd.colors)
877
+ # Map point cloud colors to mesh vertices using nearest neighbor
878
+ pcd_tree = o3d.geometry.KDTreeFlann(pcd)
879
+ vertex_colors = np.zeros((verts.shape[0], 3))
880
+ for i, vert in enumerate(verts):
881
+ _, idx, _ = pcd_tree.search_knn_vector_3d(vert, 1)
882
+ vertex_colors[i] = colors[idx[0]]
883
+ tex = torch.from_numpy(vertex_colors).float().to(device=device)
884
+
885
+ except Exception as e:
886
+ print(f"Warning: Failed to load PLY: {e}")
887
+ continue
888
+
889
+ # Initialise the mesh with textures
890
+ verts = torch.from_numpy(verts).float()
891
+ verts = normalize_mesh_verts(verts)
892
+
893
+ if isinstance(faces, np.ndarray):
894
+ faces = torch.from_numpy(faces)
895
+
896
+ faces = faces.to(device=device, dtype=torch.int64)
897
+ verts = verts.to(device=device, dtype=torch.float32)
898
+ # Ensure shape is (1, V, 3)
899
+ if tex.dim() == 2:
900
+ tex = tex.unsqueeze(0)
901
+
902
+ tex = TexturesVertex(verts_features=tex)
903
+
904
+ meshes = Meshes(verts=[verts], faces=[faces], textures=None)
905
+
906
+
907
+ if meshes.textures is None:
908
+ meshes.textures = TexturesVertex(
909
+ verts_features=torch.ones_like(meshes.verts_padded(), device=device)
910
+ )
911
+
912
+ # Also save as OBJ format to preserve texture information
913
+ o3d.io.write_triangle_mesh(f'{save_dir}/mesh_{instance}.obj', mesh)
914
+
915
+ # render the mesh with 8 views, scale means the distance from the object to the camera
916
+ image_size=(420,420)
917
+ #images,fragments,cameras = render_batch(meshes,image_size=image_size,scale=1.0)
918
+ images,fragments,cameras = render(meshes,image_size=image_size,scale=2.0)
919
+
920
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
921
+ rgb = images.cpu().numpy()[:, :, :, :3]
922
+ image_grid(rgb, rows=1, cols=8, rgb=True)
923
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_rendering-sam3d.png')
924
+ plt.close()
925
+
926
+ # get the feature point cloud
927
+ feature_point_cloud, dino_feat_masked, feature_point_cloud_list = fuse_feature_rgbd(extractor,images,fragments,cameras)
928
+
929
+ # get the downsampled aggregated feature point cloud
930
+ num_pts= 1024
931
+ nn_num= 100 # larger nn_num will make the feature more smooth
932
+ sampled_points,aggregated_features = downsample_with_knn_feature_aggregation(feature_point_cloud,num_pts,nn_num)
933
+
934
+ # #Needed
935
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
936
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
937
+ # partial_feature_point_cloud[index,3:],
938
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
939
+ # partial_feature_point_cloud[index,:3])
940
+
941
+
942
+ q=0
943
+
944
+ if False:
945
+ q+=1
946
+ inputs = trainset[q]
947
+ rgb = inputs['rgb'][None].cuda()
948
+ pts = inputs['pts'][None]
949
+ choose = inputs['choose'][None]
950
+ model = inputs['model'][None].cuda()
951
+ rgb = inputs['rgb'][None].cuda()
952
+
953
+ _desc_q = extractor.forward_features(rgb)["x_prenorm"][:, :]
954
+ #_desc_q = extractor.extract_descriptors(rgb,layer=11,facet='token',include_cls=True).squeeze(1) # B,L,C
955
+ # _norm_q = torch.linalg.norm(_desc_q, dim=-1)[:, :, None]
956
+ # _desc_q = _desc_q / (_norm_q)
957
+
958
+ dino_feature = _desc_q[:,1:,:]
959
+
960
+
961
+ #dino_feature = self.rgb_extractor.forward_features(rgb)["x_prenorm"][:, 1:]
962
+ #rgb=self.rgb_extractor.preprocess_pil(rgb)
963
+ #dino_feature = self.rgb_extractor.extract_descriptors(rgb,layer=11,facet='key') # (1,900,384)
964
+ f_dim = dino_feature.shape[-1]
965
+ num_patches =int(dino_feature.shape[1]**0.5) # 1
966
+ b=1
967
+ dino_feature = dino_feature.reshape(b, num_patches, num_patches, f_dim).permute(0,3,1,2)
968
+
969
+ dino_feature = F.interpolate(dino_feature, size=(num_patches * 14, num_patches * 14), mode='nearest')
970
+ dino_feature_2d_vis = dino_feature.detach().cpu()[0] #384, 224,224
971
+
972
+ b, d = dino_feature.shape[0:2]
973
+ dino_feature = dino_feature.reshape(b,d,-1)
974
+ choose_2 = choose.unsqueeze(1).repeat(1, d, 1).cuda()
975
+ dino_feature = torch.gather(dino_feature,2,choose_2).contiguous() # b,d,n
976
+
977
+ #dino_feature = dino_feature / torch.std(dino_feature, dim=1, keepdim=True)
978
+ #dino_feature = torch.norm(dino_feature, dim=1, keepdim=True)
979
+ #choose_dino = choose.unsqueeze(1).repeat(1, d, 1Z
980
+ #sem_model = sem_model / torch.std(sem_model, dim=-1, keepdim=True)
981
+ #visual_global_sem_high = sem_model.detach().cpu().numpy()[0] #1024,384
982
+ visual_partial_sem_high = dino_feature.permute(0,2,1).detach().cpu().numpy()[0] #1024,128
983
+
984
+ #visual_global_sem_low = self.feature_mlp(sem_model.permute(0,2,1)).permute(0,2,1).detach().cpu().numpy()[0]
985
+ #visual_partial_sem_low = rgb_local.permute(0,2,1).detach().cpu().numpy()[0]
986
+ # transform the pts with GT 9D Pose into object coordinate
987
+ translation_gt = inputs['translation_label'][None]
988
+ rotation_gt = inputs['rotation_label'][None]
989
+ size_gt = inputs['size_label'][None]
990
+ pts_obj_frame = (inputs['pts'] - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
991
+ #kpt_obj_frame = (kpt_3d - translation_gt.unsqueeze(1)) / (torch.norm(size_gt, dim=1).view(b, 1, 1) + 1e-8) @ rotation_gt
992
+
993
+ # dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
994
+ # plt.imshow(dino_feature_2d_vis_pca[:,:,:3])
995
+ # plt.show()
996
+ # fig =plt.figure()
997
+ # rgb_unnorm = unnormalize(rgb[0].permute(1,2,0).detach().cpu())
998
+ # plt.imshow(rgb_unnorm)
999
+ # plt.show()
1000
+ # image_mask = ((rgb_unnorm.clone().sum(axis=2) >0.1)*1.0)[None,None] # 224,224
1001
+
1002
+ # rgb_mask = np.array(image_mask[0,0,:,:,None]).repeat(384, axis=2).transpose(2,0,1)
1003
+
1004
+ # dino_feature_2d_vis[rgb_mask==0] = 0
1005
+ # masked_dino_feature_2d_vis_pca = vis_pca_pixelwise(dino_feature_2d_vis[None])[0]
1006
+ # plt.imshow(masked_dino_feature_2d_vis_pca[:,:,:])
1007
+ # plt.show()
1008
+
1009
+
1010
+ # print('self.pca.cateagg-partial')
1011
+ # index = np.random.choice(partial_feature_point_cloud.shape[0], 1024, replace=False)
1012
+ # #average_aggregated_features = torch.load(f'sem_cat_pcd/{cat}_dino_feature.pt')
1013
+
1014
+ average_aggregated_features = torch.load(f'/home/xyz/anything6d_project/Sem-GCE-AG-Pose/sem_cat_pcd/{cat}_dino_feature.pt')
1015
+ # #plot_pointclouds_3d_with_copca(aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), pts_obj_frame)
1016
+
1017
+ plot_pointclouds_3d_with_copca_old(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1018
+ visual_partial_sem_high,
1019
+ sampled_points.squeeze(0).detach().cpu().numpy(),
1020
+ pts_obj_frame[0].detach().cpu().numpy())
1021
+ plt.show()
1022
+
1023
+
1024
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(),
1025
+ # visual_partial_sem_high,
1026
+ # sampled_points.squeeze(0).detach().cpu().numpy(),
1027
+ # pts_obj_frame[0].detach().cpu().numpy())
1028
+
1029
+
1030
+ # #query_points =np.random.choice(1024, 3)
1031
+ # query_points, sampled_indices = sample_farthest_points(pts_obj_frame, K=4) # Shape: (1, 1024, 3), (1, 1024)
1032
+ # plot_pointclouds_with_color_mapping(visual_partial_sem_high,
1033
+ # aggregated_features.squeeze(0).detach().cpu().numpy(),
1034
+ # pts_obj_frame[0].detach().cpu().numpy(),
1035
+ # model[0].detach().cpu().numpy(),
1036
+ # sampled_indices[0], similarity_threshold=None)
1037
+
1038
+
1039
+ # # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1040
+ # # plot_pointclouds_3d_with_pca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,3:], sampled_points.squeeze(0).detach().cpu().numpy(), partial_feature_point_cloud[index,:3])
1041
+ # partial_feature_point_cloud = feature_point_cloud_list[5]
1042
+ # plot_pointclouds_3d_with_copca(visual_partial_sem_high,
1043
+ # partial_feature_point_cloud[index,3:],
1044
+ # pts_obj_frame[0].detach().cpu().numpy(),
1045
+ # partial_feature_point_cloud[index,:3])
1046
+
1047
+ # plot_pointclouds_3d_with_copca(average_aggregated_features.squeeze(0).detach().cpu().numpy(), aggregated_features.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy(), sampled_points.squeeze(0).detach().cpu().numpy())
1048
+
1049
+
1050
+
1051
+ os.makedirs(f'{save_dir}/saved_dino_pcd_untex-try/{cat}', exist_ok=True)
1052
+ torch.save(aggregated_features, f'{save_dir}/saved_dino_pcd_untex-try/{cat}/{instance}_dino_feature-notexture_sam3d.pt')
1053
+
1054
+ os.makedirs(f'{save_dir}/saved_pcd_untex-try/{cat}', exist_ok=True)
1055
+ torch.save(sampled_points, f'{save_dir}/saved_pcd_untex-try/{cat}/{instance}_pcd-notexture_sam3d.pt')
1056
+
1057
+ aggregated_features_list.append(aggregated_features)
1058
+ # #break
1059
+ vis_dino = vis_pca_pixelwise(np.array(dino_feat_masked))
1060
+ vis_img = np.clip(vis_dino[:,:,:,:],a_min=0,a_max=1)
1061
+ image_grid(vis_img, rows=1, cols=8, rgb=True)
1062
+
1063
+ os.makedirs(f'{save_dir}/{cat}_rgb_dino_untex-try', exist_ok=True)
1064
+ plt.savefig(f'{save_dir}/{cat}_rgb_dino_untex-try/{instance}_dino-notexture_sam3d.png')
1065
+ plt.close()
1066
+ if False:
1067
+
1068
+ rgb = images.cpu().numpy()[:, :, :, :3]
1069
+ mask = images[:, ..., 3].cpu().numpy()!=0
1070
+ depth_image = fragments[:, ..., 0].cpu().numpy()*mask
1071
+ image_grid(rgb, rows=1, cols=8, rgb=True)
1072
+ # os.makedirs(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino', exist_ok=True)
1073
+ # plt.savefig(f'/home/tulrfpf/code/PointFlowRenderer/{cat}_rgb_dino/{instance}_rgb.png')
1074
+ # image_grid(depth_image[...,None], rows=2, cols=4, rgb=True)
1075
+ # image_grid(mask[...,None], rows=2, cols=4, rgb=True)
1076
+
1077
+
1078
+
1079
+ fig = plt.figure(figsize=(10, 10))
1080
+ ax = fig.add_subplot(111, projection="3d")
1081
+ #ax.scatter(sampled_points[:, 2], sampled_points[:,0], sampled_points[:, 1], c="b")
1082
+ pca_color =vis_pca(feature_point_cloud[:, 3:])
1083
+ ax.scatter(feature_point_cloud[:, 2], feature_point_cloud[:, 0], feature_point_cloud[:, 1], c=pca_color,s=0.1)
1084
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1085
+ ax.set_xlabel("z")
1086
+ ax.set_ylabel("x")
1087
+ ax.set_zlabel("y")
1088
+ ax.set_xlim(-2, 2)
1089
+ ax.set_ylim(-2, 2)
1090
+ ax.set_zlim(-2, 2)
1091
+ plt.title("Sampled Dense Points from Mesh")
1092
+ plt.show()
1093
+
1094
+ fig = plt.figure(figsize=(10, 10))
1095
+ ax = fig.add_subplot(111, projection="3d")
1096
+ pca_color =vis_pca(aggregated_features.squeeze(0))
1097
+ sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1098
+ ax.scatter(sampled_points[:, 2], sampled_points[:, 0], sampled_points[:, 1], c=pca_color,s=50)
1099
+ #create_camera_geometry_batch(ax=ax,R_batch=R,T_batch=T,order=(2,0,1))
1100
+ ax.set_xlabel("z")
1101
+ ax.set_ylabel("x")
1102
+ ax.set_zlabel("y")
1103
+ ax.set_xlim(-2, 2)
1104
+ ax.set_ylim(-2, 2)
1105
+ ax.set_zlim(-2, 2)
1106
+ plt.title("Sampled Sparse Points from Mesh")
1107
+ plt.show()
1108
+ #break
1109
+ # Assign the aggregated features to the mean shape point cloud
1110
+ aggregated_features_tensor = torch.cat(aggregated_features_list, dim=0) #[N, 1024, 384]
1111
+ average_aggregated_features = aggregated_features_tensor.mean(dim=0, keepdim=True)
1112
+ print("Average Aggregated Features Shape:", average_aggregated_features.shape) # Should be (1, 1024, 384)
1113
+
1114
+ os.makedirs(f'{save_dir}/sem_cat_pcd_untex-try', exist_ok=True)
1115
+ torch.save(average_aggregated_features, f'{save_dir}/sem_cat_pcd_untex-try/{cat}_dino_feature.pt')
1116
+
1117
+ # fig = plt.figure(figsize=(10, 10))
1118
+ # ax = fig.add_subplot(111, projection="3d")
1119
+ # pca_color =vis_pca(average_aggregated_features.squeeze(0))
1120
+ # # sampled_points= sampled_points.squeeze(0).cpu().detach().numpy()
1121
+ # meanshape_points = meanshape_points.squeeze(0).cpu().detach().numpy()
1122
+ # ax.scatter(meanshape_points[:, 2], meanshape_points[:, 0], meanshape_points[:, 1], c=pca_color,s=10.0, marker='o')
1123
+ # ax.set_xlabel("z")
1124
+ # ax.set_ylabel("x")
1125
+ # ax.set_zlabel("y")
1126
+ # ax.set_xlim(-2, 2)
1127
+ # ax.set_ylim(-2, 2)
1128
+ # ax.set_zlim(-2, 2)
1129
+ # plt.title("Shape Prior Dino")
1130
+ # plt.show()
1131
+
feature_alignment.py ADDED
@@ -0,0 +1,187 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import numpy as np
2
+ import open3d as o3d
3
+ import os
4
+ import copy
5
+ import trimesh
6
+ import torch
7
+ from sklearn.decomposition import PCA
8
+
9
+ def align_point_clouds(pcd1_path, pcd2_path, geometric_features1_path, geometric_features2_path,
10
+ semantic_features1_path, semantic_features2_path, distance_threshold=0.05, output_path="aligned_combined.ply"):
11
+ # # Load point clouds
12
+ # pcd1 = o3d.io.read_point_cloud(pcd1_path)
13
+ # pcd2 = o3d.io.read_point_cloud(pcd2_path)
14
+
15
+ # Load point clouds
16
+ pcd1 = torch.load(pcd1_path, map_location="cpu")
17
+
18
+ # Rotate pcd1 90 degrees along x axis
19
+ rotation_x = torch.tensor([
20
+ [1, 0, 0],
21
+ [0, 0, -1],
22
+ [0, 1, 0]
23
+ ], dtype=pcd1.dtype)
24
+
25
+ rotation_z = torch.tensor([
26
+ [0, -1, 0],
27
+ [1, 0, 0],
28
+ [0, 0, 1]
29
+ ], dtype=pcd1.dtype)
30
+
31
+
32
+ pcd1 = torch.matmul(pcd1, rotation_x.T)
33
+ pcd1 = torch.matmul(pcd1, rotation_z.T)
34
+ pcd2 = torch.load(pcd2_path, map_location="cpu")
35
+
36
+ # Convert to Open3D point clouds
37
+ # pcd is a torch.Tensor
38
+ pcd_np1 = pcd1.detach().cpu().numpy().astype(np.float64)
39
+ pcd1 = o3d.geometry.PointCloud()
40
+ pcd1.points = o3d.utility.Vector3dVector(pcd_np1.reshape(-1, 3))
41
+ pcd_np2 = pcd2.detach().cpu().numpy().astype(np.float64)
42
+ pcd2 = o3d.geometry.PointCloud()
43
+ pcd2.points = o3d.utility.Vector3dVector(pcd_np2.reshape(-1, 3))
44
+
45
+ # Load geometric features
46
+ geometric_features1 = np.load(geometric_features1_path)
47
+ geometric_features2 = np.load(geometric_features2_path)
48
+
49
+ # Load semantic features
50
+ semantic_features1 = torch.load(semantic_features1_path, map_location="cpu").numpy().reshape(1024, 384)
51
+ semantic_features2 = torch.load(semantic_features2_path, map_location="cpu").numpy().reshape(1024, 384)
52
+
53
+ # Concatenate geometric and semantic features
54
+ print(f"geometric_features1 shape: {geometric_features1.shape}")
55
+ print(f"semantic_features1 shape: {semantic_features1.shape}")
56
+
57
+ # combined_features1 = np.concatenate([geometric_features1, semantic_features1], axis=1)
58
+ # combined_features2 = np.concatenate([geometric_features2, semantic_features2], axis=1)
59
+ combined_features1 = semantic_features1
60
+ combined_features2 = semantic_features2
61
+
62
+ # save original combined
63
+ original_pcd = pcd1 + pcd2
64
+ os.makedirs(output_path, exist_ok=True)
65
+ o3d.io.write_point_cloud(f"{output_path}/original.ply", original_pcd)
66
+
67
+ # save a separated view so pcd1 and pcd2 are in the same file but easily distinguishable
68
+ bbox1 = np.asarray(pcd1.get_max_bound()) - np.asarray(pcd1.get_min_bound())
69
+ bbox2 = np.asarray(pcd2.get_max_bound()) - np.asarray(pcd2.get_min_bound())
70
+ max_extent = max(np.max(bbox1), np.max(bbox2), 1e-6)
71
+ offset = max_extent * 1.5
72
+ p1 = copy.deepcopy(pcd1)
73
+ p2 = copy.deepcopy(pcd2)
74
+ p1.translate([-offset / 2, 0, 0])
75
+ p2.translate([ offset / 2, 0, 0])
76
+ separated_pcd = p1 + p2
77
+ o3d.io.write_point_cloud(f"{output_path}/original_separate.ply", separated_pcd)
78
+
79
+ print(f"pcd1 points shape: {np.asarray(pcd1.points).shape}")
80
+ print(f"pcd2 points shape: {np.asarray(pcd2.points).shape}")
81
+ print(f"combined_features1 shape: {combined_features1.shape}")
82
+ print(f"combined_features2 shape: {combined_features2.shape}")
83
+
84
+ # Convert combined features to Open3D format
85
+ f1 = o3d.pipelines.registration.Feature()
86
+ f1.data = combined_features1.T
87
+ f2 = o3d.pipelines.registration.Feature()
88
+ f2.data = combined_features2.T
89
+
90
+ # RANSAC-based initial alignment
91
+ result_ransac = o3d.pipelines.registration.registration_ransac_based_on_feature_matching(
92
+ pcd1, pcd2, f1, f2, True, distance_threshold,
93
+ o3d.pipelines.registration.TransformationEstimationPointToPoint(False), 4,
94
+ [o3d.pipelines.registration.CorrespondenceCheckerBasedOnEdgeLength(0.9),
95
+ o3d.pipelines.registration.CorrespondenceCheckerBasedOnDistance(distance_threshold)],
96
+ o3d.pipelines.registration.RANSACConvergenceCriteria(4000000, 500)
97
+ )
98
+
99
+ # ICP refinement
100
+ result_icp = o3d.pipelines.registration.registration_icp(
101
+ pcd1, pcd2, distance_threshold, result_ransac.transformation,
102
+ o3d.pipelines.registration.TransformationEstimationPointToPoint()
103
+ )
104
+ # Transform and visualize
105
+ pcd1.transform(result_icp.transformation)
106
+
107
+ # Save aligned point clouds separated for easy comparison
108
+ bbox1 = np.asarray(pcd1.get_max_bound()) - np.asarray(pcd1.get_min_bound())
109
+ bbox2 = np.asarray(pcd2.get_max_bound()) - np.asarray(pcd2.get_min_bound())
110
+ max_extent = max(np.max(bbox1), np.max(bbox2), 1e-6)
111
+ offset = max_extent * 1.5
112
+ p1 = copy.deepcopy(pcd1)
113
+ p2 = copy.deepcopy(pcd2)
114
+ p1.translate([-offset / 2, 0, 0])
115
+ p2.translate([ offset / 2, 0, 0])
116
+
117
+ # Apply PCA to combined features separately for RGB coloring
118
+ pca1 = PCA(n_components=3)
119
+ pca_features1 = pca1.fit_transform(combined_features1)
120
+
121
+ pca2 = PCA(n_components=3)
122
+ pca_features2 = pca2.fit_transform(combined_features2)
123
+
124
+ # Normalize to [0, 1] range for RGB
125
+ pca_features1_normalized = (pca_features1 - pca_features1.min(axis=0)) / (pca_features1.max(axis=0) - pca_features1.min(axis=0) + 1e-6)
126
+ pca_features2_normalized = (pca_features2 - pca_features2.min(axis=0)) / (pca_features2.max(axis=0) - pca_features2.min(axis=0) + 1e-6)
127
+
128
+ p1.colors = o3d.utility.Vector3dVector(pca_features1_normalized)
129
+ p2.colors = o3d.utility.Vector3dVector(pca_features2_normalized)
130
+
131
+ transformed_separate = p1 + p2
132
+ o3d.io.write_point_cloud(f"{output_path}/transformed_separate.ply", transformed_separate)
133
+
134
+ return result_icp.transformation
135
+
136
+ # Example usage:
137
+ # align_point_clouds("path_to_pcd1.ply", "path_to_pcd2.ply", "path_to_features1.npy", "path_to_features2.npy", output_path="aligned_combined.ply")
138
+ transformation = align_point_clouds(
139
+ f"/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_pcd_untex-try/cup/cup-grey_handle_pcd-texture_amodal.pt",
140
+ f"/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_pcd_untex-try/cup/cup-grey_handle_pcd-texture.pt",
141
+ f"yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/input_features.npy",
142
+ f"yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/normalized_groundtruth_features.npy",
143
+ f"/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_dino_pcd_untex-try/cup/cup-grey_handle_dino_feature-texture_amodal.pt",
144
+ f"/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_dino_pcd_untex-try/cup/cup-grey_handle_dino_feature-texture.pt",
145
+ output_path=f"yung_large_files/pose_can_results/housecat6d_sonata_feature/scene01/000000/cup-grey_handle/semantic_feature-texture"
146
+ )
147
+ # meshfile_name = f"yung_large_files/pose_can_results/output_orientation_Matters/Amodal3r_HouseCat6D_test/scene01/000000/cup-grey_handle/mesh.glb"
148
+ # mesh = trimesh.load(meshfile_name, force='mesh')
149
+ # mesh.apply_transform(transformation)
150
+ # # Save the transformed mesh as GLB
151
+ # transformed_mesh_path = os.path.join(os.path.dirname(meshfile_name), "mesh_transformed_w_semanticand_geometric_feature.glb")
152
+ # # trimesh.export will include vertex colors if present
153
+ # mesh.export(transformed_mesh_path)
154
+
155
+ # # Visualization of features using PCA for color mapping
156
+ # import matplotlib.pyplot as plt
157
+
158
+ # # Load the feature file and point cloud
159
+ # features = torch.load("/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_dino_pcd_untex-try/cup/cup-grey_handle_dinov3_feature-texture.pt", map_location="cpu")
160
+ # # pcd = o3d.io.read_point_cloud("/mnt/4T/Yung/yung_large_files/pose_can_results/output_orientation_Matters/Amodal3r_HouseCat6D_test/scene01/000000/cup-grey_handle/mesh_downsampled.ply")
161
+ # pcd = torch.load("/mnt/4T/Yung/yung_large_files/semantic_feature/test_notebook/8v/saved_pcd_untex-try/cup/cup-grey_handle_pcd-texture.pt", map_location="cpu")
162
+
163
+ # # pcd is a torch.Tensor
164
+ # pcd_np = pcd.detach().cpu().numpy().astype(np.float64)
165
+ # # pcd_np = np.asarray(pcd.points).astype(np.float64)
166
+
167
+ # # Ensure shape is (N,3)
168
+ # pcd_np = pcd_np.reshape(-1, 3)
169
+
170
+ # print(features.shape)
171
+ # # Convert features to numpy and reshape to 2D
172
+ # features_np = features.detach().cpu().numpy().squeeze(0)
173
+ # print(features_np.shape)
174
+
175
+ # # Apply PCA to reduce features to 3 components for RGB coloring
176
+ # pca = PCA(n_components=3)
177
+ # pca_features = pca.fit_transform(features_np)
178
+
179
+ # # Normalize to [0, 1] range for RGB
180
+ # pca_features_normalized = (pca_features - pca_features.min(axis=0)) / (pca_features.max(axis=0) - pca_features.min(axis=0) + 1e-6)
181
+
182
+ # # Create point cloud and apply PCA colors
183
+ # pcd_o3d = o3d.geometry.PointCloud()
184
+ # pcd_o3d.points = o3d.utility.Vector3dVector(pcd_np)
185
+ # pcd_o3d.colors = o3d.utility.Vector3dVector(pca_features_normalized)
186
+ # o3d.io.write_point_cloud("pcd_colored_new.ply", pcd_o3d)
187
+