Day 14: Week 2 Review

Goal

Connect video, gloss, keypoints, and NPZ.

Learn

• A clean training example usually includes aligned video, frame timing, extracted motion, gloss or labels, metadata, and quality notes.
• Alignment matters. The gloss should match the exact frames used for training, not a longer clip with extra movement.
• Metadata makes the dataset auditable. It tells reviewers where the sample came from, how it was processed, and whether it is approved.

Example

• Sample metadata record: sample_id = asl_00042, source_video = raw/signer03/clip0042.mp4, frame_start = 18, frame_end = 82, gloss = THANK-YOU, pose_file = pose/asl_00042.npz, signer_ref = signer03, consent_id = c-2026-04, qa_status = approved, notes = clear face and both hands.
• If qa_status is review, the training script can skip the sample until a human resolves it.

Practice

1. Create one sample record with source video, signer ID, gloss, frame range, pose file, split, consent reference, and quality status.
2. Mark the sample keep, review, or reject and explain why.

Checkpoint

Quality note