| --- |
| language: |
| - en |
| - zh |
| license: cc-by-4.0 |
| task_categories: |
| - other |
| tags: |
| - 3d |
| - point-cloud |
| - visual-grounding |
| - sequential |
| - indoor-scene |
| size_categories: |
| - 100K<n<1M |
| --- |
| |
| # Sequential 3D Visual Grounding Dataset |
|
|
| 5 indoor datasets (ScanNet, HM3D, 3RScan, ARKitScenes, MultiScan) · 10301 scenes · 117885 sequences · 579872 steps |
|
|
| ## Overview |
|
|
| | Dataset | Scenes | Train | Val | Test | |
| |---------|-------:|------:|----:|-----:| |
| | ScanNet | 1513 | 14501 | 1700 | 1808 | |
| | HM3D | 2302 | 33302 | 7663 | 4232 | |
| | 3RScan | 1381 | 13826 | 4864 | 1937 | |
| | ARKitScenes | 4834 | 24349 | 1394 | 2653 | |
| | MultiScan | 271 | 4133 | 858 | 665 | |
| | **Total** | **10301** | **90111** | **16479** | **11295** | |
|
|
| ## Annotation |
|
|
| Each step has one **target** (the object to locate) and zero or more **anchors** (reference objects). |
| Anchors are extracted from prepositional objects, verified against scene instances, and enforced different from target. |
|
|
| - target_id non-null: 99.98% |
| - Anchor distribution: 0 = 1.8%, 1 = 36.0%, ≥2 = 62.2% |
| - 0 out-of-range / anchor==target violations |
| |
| Full spec: [DATASET_RECONSTRUCTION_GUIDE.md](DATASET_RECONSTRUCTION_GUIDE.md) (English + 中文) |
| |
| ## Structure |
| |
| ``` |
| ├── annotations/ |
| │ ├── dynamic_data/ # {dataset}_{train,val,test}.json |
| │ ├── splits/ # {dataset}_{train,val,test}.txt |
| │ └── meta_data/ # 607 categories, synonym map, label TSV |
| ├── scan_data/ # 3D-VisTA instance attributes |
| │ └── {Dataset}/scan_data/ |
| │ ├── instance_id_to_name/ # {scene}.json (list[str]) |
| │ ├── instance_id_to_loc/ # {scene}.npy ((n,6) center+size) |
| │ └── instance_id_to_gmm_color/ # {scene}.json (color GMM) |
| └── final_qc_report.json |
| ``` |
| |
| ## Usage |
| |
| 1. Point 3D-VisTA's `SCAN_FAMILY_BASE` to `scan_data/`. |
| 2. Load `annotations/dynamic_data/{dataset}_{split}.json`. |
| 3. Strip `{Dataset}_` prefix from `scan_id` to get the scene name. |
|
|
| Source code and reproduction scripts: [GitHub](https://github.com/itszhaoziyan-n/sequential-grounding-data) |
|
|
| ## Sources |
|
|
| - Point clouds: [SceneVerse](https://scene-verse.github.io/) |
| - Sequential annotations: [SG3D](https://github.com/sg-3d/sg3d) + SceneVerse SSG |
| - Target/anchor definition: v2 grounding-centric (this work) |
|
|
| ## License |
|
|
| Refer to the original dataset licenses (ScanNet, HM3D, 3RScan, ARKitScenes, MultiScan) and SceneVerse terms. |
|
|
