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id string | image string | width int32 | height int32 | polygons list | labels list | relations dict |
|---|---|---|---|---|---|---|
0000 | images/train/0000.png | 3,584 | 2,048 | [
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0001 | images/train/0001.png | 6,400 | 6,912 | [
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[
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[
4664.8935546875,
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[
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[
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0011 | images/train/0011.png | 7,936 | 7,424 | [[[1552.0831298828125,2470.8330078125],[1628.8482666015625,2416.6435546875],[4218.62548828125,6085.3(...TRUNCATED) | [30,30,30,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,(...TRUNCATED) | {"subject_index":[86,87,88,89,90,93,94,96,98,99,100,101,102,103,104,105,106,107,107,155,156,158,159,(...TRUNCATED) |
0016 | images/train/0016.png | 2,560 | 3,072 | [[[1250.19921875,903.1873168945312],[1263.16162109375,882.3550415039062],[1281.88134765625,894.00286(...TRUNCATED) | [
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0019 | images/train/0019.png | 5,406 | 7,681 | [[[2140.408447265625,489.3877868652344],[2151.020751953125,446.5306091308594],[2202.525634765625,459(...TRUNCATED) | [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1(...TRUNCATED) | {"subject_index":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,23,24,25,26,28,29,30,31,36(...TRUNCATED) |
0022 | images/train/0022.png | 6,041 | 3,971 | [[[4489.412109375,679.0197143554688],[4527.94140625,666.1765747070312],[4539.01953125,699.4118041992(...TRUNCATED) | [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1(...TRUNCATED) | {"subject_index":[0,1,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,3(...TRUNCATED) |
0023 | images/train/0023.png | 3,293 | 4,083 | [[[621.45654296875,1613.0819091796875],[979.0001220703125,1554.0540771484375],[1049.7611083984375,19(...TRUNCATED) | [22,22,44,44,44,44,44,44,44,44,44,44,44,44,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,45,45,45,11,(...TRUNCATED) | {"subject_index":[2,3,14,15,16,17,18,19,20,21,22,23,24,25,11,9,10,11,9,10,13,8,6,7],"object_index":[(...TRUNCATED) |
0024 | images/train/0024.png | 9,781 | 5,469 | [[[1733.396240234375,1728.125732421875],[2131.535888671875,1572.733642578125],[2271.472900390625,193(...TRUNCATED) | [22,22,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,10,10,10,10,10,10,10,10,10,10,10,(...TRUNCATED) | {"subject_index":[22,23,25,24,26,28,29,30,31,32,33,4,5,10,11,12,13,14,17,18,19,20,21,2,6,3,7,48,27,4(...TRUNCATED) |
0025 | images/train/0025.png | 5,319 | 5,363 | [[[3657.10546875,4516.13330078125],[4133.33349609375,4376.66650390625],[4226.22802734375,4693.866699(...TRUNCATED) | [
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11,
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11,
11,
11,
11,
11,
11
] | {"subject_index":[2,3,4,5,6,7,8,9,10,11,10,12,13,2,2,3,2,2,3,5,5,5,6,6,7,5,5,5,6,6,7,9,9,10],"object(...TRUNCATED) |
0030 | images/train/0030.png | 5,376 | 5,120 | [[[1690.2239990234375,538.1507568359375],[1958.2513427734375,479.1210021972656],[1969.8414306640625,(...TRUNCATED) | [31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,7,7,7,(...TRUNCATED) | {"subject_index":[0,1,2,4,466,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,7(...TRUNCATED) |
End of preview.
STAR Relationship
STAR Relationship 是一个遥感场景图生成(Scene Graph Generation,SGG)数据集。仓库将原始大尺寸图片与结构化标注分开保存:
- 图片以普通文件形式位于
images/。 - train、validation 和 test 的结构化标注以 Parquet 保存。
- Dataset 中的
image字段是图片相对于仓库根目录的路径,不包含图片字节,也不会自动解码为 PIL 对象。
完整仓库约为 127 GB。使用 snapshot_download() 下载完整仓库前,请确认本地有足够的磁盘空间。
仓库结构
wliafe/star
├── README.md
├── images
│ ├── train
│ │ └── 0000.png
│ ├── validation
│ │ └── 0002.png
│ └── test
│ └── 0004.png
└── data
├── train-*.parquet
├── validation-*.parquet
└── test-*.parquet
本地源数据中的 val 在 Hugging Face Dataset 中命名为 validation。
数据字段
每行表示一张图片及其场景图标注:
id:图片文件名去除扩展名后的样本 ID。image:仓库相对路径,例如images/train/0000.png。width、height:原图宽高。polygons:对象 polygon 列表;每个点为[x, y],保留原始坐标和顶点顺序。labels:与polygons一一对应的对象类别。relations.subject_index:关系主语在对象数组中的索引。relations.object_index:关系宾语在对象数组中的索引。relations.predicate:关系类别。
test split 只有图片,polygons、labels 和三个关系数组均为空。
下载并读取
repo_type="dataset" 是 snapshot_download() 的参数;load_dataset() 直接使用仓库 ID,不需要传入 repo_type。
from pathlib import Path
from datasets import load_dataset
from huggingface_hub import snapshot_download
repo_dir = Path(
snapshot_download(
repo_id="wliafe/star",
repo_type="dataset",
)
)
dataset = load_dataset("wliafe/star")
sample = dataset["train"][0]
image_path = repo_dir / sample["image"]
print(sample["id"])
print(sample["image"])
print(image_path)
assert image_path.is_file()
snapshot_download() 返回仓库快照根目录,因此将它与 sample["image"] 拼接即可得到本地图片路径。不要直接把相对路径解释为当前工作目录下的文件。
使用 Pillow
from PIL import Image
with Image.open(image_path) as image:
image.load()
print(image.size)
使用 OpenCV
import cv2
image = cv2.imread(str(image_path), cv2.IMREAD_UNCHANGED)
if image is None:
raise RuntimeError(f"无法读取图片:{image_path}")
print(image.shape)
固定数据版本
如果训练或评测需要可复现的数据版本,请为下载和 Dataset 加载指定同一个完整 commit revision:
from pathlib import Path
from datasets import load_dataset
from huggingface_hub import snapshot_download
revision = "<full-commit-sha>"
repo_dir = Path(
snapshot_download(
repo_id="wliafe/star",
repo_type="dataset",
revision=revision,
)
)
dataset = load_dataset("wliafe/star", revision=revision)
image_path = repo_dir / dataset["train"][0]["image"]
这样 Parquet 标注与原始图片始终来自同一个仓库版本。
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