| # MANUS-HaGRID Annotation Format |
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| Each WebDataset sample contains a `.json` metadata member plus available multimodal files for that sample. |
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| ## Per-Sample JSON in Shards |
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| The shard-local `.json` member records source id, split, gesture label when available, and `available_files`. The public manifest adds release-level source and license fields. |
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| ## Public Manifest Fields |
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| ```json |
| { |
| "manus_sample_id": "v2_test_grabbing_00000001", |
| "config": "hagrid_v2", |
| "split": "test", |
| "source_dataset": "HaGRIDv2", |
| "source_version": "HaGRIDv2", |
| "source_split": "test", |
| "source_image_id": "grabbing_00000001", |
| "source_license_id": "hagrid-specific-cc-by-sa-4.0-variant", |
| "source_license_name": "HaGRID-specific Creative Commons Attribution-ShareAlike 4.0 variant", |
| "contains_source_pixels": true, |
| "processing_pipeline_version": "manus-hagrid-v1.0", |
| "available_modalities": ["full_rgb", "full_depth", "hand_rgb", "hand_depth", "mesh_front"] |
| } |
| ``` |
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| ## Modalities |
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| - `full_rgb.png`: full-scene RGB image. |
| - `full_depth.png`: full-scene depth map. |
| - `hand_rgb.png`: hand-region RGB crop, when available. |
| - `hand_depth.png`: hand-region depth crop. |
| - `hand_bbox.json` / `hand_depth_bbox.json`: crop bounding boxes. |
| - `bbox.json`, `normal.json`, `normal_oop.json`: available source annotations. |
| - `vertices.json`: hand mesh vertices or related mesh metadata. |
| - `mesh_front.png`, `mesh_back.png`, `mesh_left.png`, `mesh_right.png`, `mesh_top.png`, `mesh_bottom.png`: canonical mesh renderings where available. |
| - `six_view_bbox_*.json`, `extra_view_image_*`, `extra_view_bbox_*`: additional view metadata where available. |
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| Use `available_files` in each sample and `available_modalities` in the manifest to handle split-specific missing modalities. |
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