| --- |
| license: cc-by-nc-4.0 |
| pretty_name: FrameCut3D |
| task_categories: |
| - image-to-3d |
| tags: |
| - 3d-generation |
| - gaussian-splatting |
| - benchmark |
| - truncation |
| size_categories: |
| - n<1K |
| configs: |
| - config_name: real |
| data_dir: real |
| default: true |
| - config_name: gso |
| data_dir: synthetic/gso |
| --- |
| |
| # FrameCut3D |
|
|
| FrameCut3D is a benchmark for **out-of-frame truncation** in single-image 3D generators: the object in the input |
| photo runs off the image frame, and the generator silently returns a truncated shape. It accompanies the paper |
| "FrameCut3D: Diagnosing Out-of-Frame Completion in Single-Image 3D Generators" (under review). |
|
|
| ## Real split (66 objects, `real/`) |
|
|
| Everyday objects captured with a handheld phone orbit. Each object folder contains: |
|
|
| | File | Description | |
| |---|---| |
| | `object.png` | Isolated full-object image (background removed), the complete input. | |
| | `cuts/cut40.png` ... `cut70.png` | Controlled truncation: the bottom 40 to 70% of the object's bounding box is masked. | |
| | `frame.jpg` | The full capture frame the object image was taken from. | |
| | `crop.png`, `crop.json` | Genuine frame truncation: the fixed center crop of the capture, with its severity and cut sides (6 objects are not cut). | |
| | `measured_geometry.ply` | Reference geometry from structure-from-motion and multi-view stereo on the orbit, support plane removed (coloured points). | |
| | `pseudo_gt.ply` | The generator's reconstruction from the complete image (TripoSplat Gaussians), used as pseudo ground truth. | |
| | `video.mp4` | The capture orbit (1080p, 30 fps). | |
| | `meta.json` | Label, description, category, geometry tier (1 solid to 4 reflective or transparent), symmetry flag, common/uncommon category flag. | |
|
|
| The measured geometry misses part of the surface next to the support plane. The paper quantifies this bias. |
| Coordinates are in the reconstruction frame (arbitrary scale and rotation); evaluation normalizes each shape to a |
| unit box and searches the rotation. |
|
|
| ## Synthetic splits (`synthetic/`) |
|
|
| - **GSO held-out split (`synthetic/gso/`, viewer config `gso`)**: 200 Google Scanned Objects, each rendered from three |
| views (azimuth 0, 120, 240 degrees, elevation 20 degrees, 1024x1024 RGBA). Per object and view: `input.png` and |
| `cuts/cut40.png` ... `cut70.png` (bottom 40 to 70% of the object's bounding box made transparent). Per object: |
| `surface.ply` with 50,000 ground-truth surface points in the render frame. GSO is CC BY 4.0 (Google LLC). |
| - `gso_200.json`: the same object list with categories and view settings. |
| - `objaverse_48.json`: the 48 Objaverse objects of the main synthetic split (UIDs, one view at azimuth 180, |
| elevation 20). Objaverse assets keep their original licences and are not redistributed here. |
|
|
| ## Scripts (`scripts/`) |
|
|
| `truncate.py` (cut rule and hidden band) and `bandmetrics.py` (Chamfer, F-score, hidden-band recall after alignment). |
|
|
| ## Load |
|
|
| ```python |
| from datasets import load_dataset |
| real = load_dataset("issai/FrameCut3D", "real", split="train") # 66 real objects |
| gso = load_dataset("issai/FrameCut3D", "gso", split="train") # 200 GSO objects x 3 views |
| ``` |
|
|
| ## Licence |
|
|
| CC BY-NC 4.0 for the real split and the annotations. GSO renders and surface points follow the GSO licence (CC BY 4.0, Google LLC); Objaverse assets keep their source licences. |
|
|
| ## Citation |
|
|
| The paper is under review. A citation will be added on publication. |
|
|
