# Data Dictionary

## skeleton_pose.jsonl

Common fields include:

- `camera_id`: source camera identifier.
- `frame_number`: source-frame sequence number.
- `captured_at`: timezone-aware capture timestamp.
- `track_id`: anonymous persistent track identifier.
- `frame_width`: source-frame width used for normalization.
- `frame_height`: source-frame height used for normalization.
- `landmarks`: pose landmark collection.

## motion_observations.jsonl

Common fields include:

- `camera_id`
- `track_id`
- `frame_number`
- `captured_at`
- `motion_type`
- `confidence`

## motion_segments.jsonl

Common fields include:

- `camera_id`
- `track_id`
- `movement_type`
- `started_at`
- `ended_at`
- `duration_seconds`
- `confidence`

The exact schema version and technical source metadata are available
inside the metadata directory.