metadata/reconstruction.md

Reconstruction

What this release contains

• Public QA tables for eval and sft.
• Split manifests and split counts.
• Public release-relative references for each item.

What this release does not contain

• Full raw videos.
• Full extracted frame caches.
• Local absolute paths used during internal development.
• Separate structured task-meta fields.

How to use the public references

Each row exposes three reconstruction-oriented fields:

• visual_ref
• source_episode_ref
• reconstruction_key_json

These are designed to be stable, path-free references. They are sufficient to map a released item back to the corresponding source episode or recording once you have obtained the upstream dataset under its original terms.

Source-specific units

• GM-100: grouped by (task_id, episode_id).
• RH20T: grouped by recording_id.
• REASSEMBLE: grouped by recording_id.
• AIST-Bimanual: grouped by recording_id.

Expected workflow

1. Obtain upstream datasets under their original terms.
2. Use source, source_task_id, source_unit_id, camera, and frame_indices_json from the public release.
3. Reconstruct the required visual inputs with the source-specific evaluation scripts in the main codebase.

Release policy

This Hugging Face release is a reviewable minimal closed loop for metadata, QA, splits, statistics, and baseline results. Full visual reconstruction remains upstream-data dependent.