Data package spec
Schema & delivery
Every clip ships as a traceable package: raw MP4, annotation JSONL layers, per-clip metadata, session records, QA report, and SHA256 manifest. Links below point to the live public sample pack.
Delivery formats
| Format | Contents |
|---|---|
| MP4 | Raw ego video, overlay previews, box previews |
| JSONL | action_segments, hand_keypoints, object_boxes, hand_boxes, contact |
| JSON | Per-clip metadata, session, QA report, summaries |
| CSV | Frame ↔ timestamp mapping per clip |
| Schema docs | annotation_schema.md, object_taxonomy.md, action_taxonomy.md |
Quick sync
aws s3 sync s3://ggn-egocentric-data-sample/sample_data_june ./Master_Sample_v1 --no-sign-requestOpen full file index
Annotation layers per clip
| Layer | Path pattern | Description |
|---|---|---|
| Action segments | annotations/action_segments.jsonl | Verb–noun phases, all clips |
| Hand keypoints | annotations/*_hand_keypoints.jsonl | 21 landmarks per hand, per frame |
| Object boxes | annotations/*_object_boxes.jsonl | 2D boxes + track IDs |
| Hand boxes | annotations/*_hand_boxes.jsonl | Left/right hand bboxes from keypoints |
| Contact | annotations/*_hand_object_contact.jsonl | Hand–object contact samples |
| Timestamps | annotations/timestamps/*.csv | frame_idx ↔ seconds |
| Metadata | metadata/*.json | QA, consent, SHA256, manipulator stats |