Day 17: Manual Visual Inspection

Goal

Understand why humans must inspect pose outputs.

Learn

• Pose tools can miss fingertips, swap left and right hands, drift away from the body, fail during occlusion, or jitter during fast motion.
• Manual inspection means looking at the source video and the pose preview together, then deciding whether the sample is usable.
• Inspection is not just technical. Reviewers should ask whether the sample still preserves enough language information for the task.

Example

• Visual QA checklist: both hands visible, face visible, keypoints stay on the signer, no left/right hand swap, fingertips stable, mouth/eyebrow region usable, timing preserved, crop does not cut signing space, confidence not consistently low.
• If a clip fails only one frame, trimming or re-extraction may fix it. If a whole hand is missing, reject may be safer.

Practice

1. Make a visual QA checklist with at least eight items.
2. Add a decision column: keep, fix, re-extract, or reject.

Checkpoint

Quality note