Annotations
How recorded identity pixels become boxes, masks and keypoints, and the two ways that derivation can quietly go wrong.
From pixels to labels
How recorded identity pixels become boxes, masks and keypoints, and which instances the QA gates drop.
Occlusion and truncation
Why occlusion needs no handling, why truncation is kept and flagged, and what the visible pixel count is good for.
Identity and cross-paint
Withheld identity, colour collisions and cross-painting: the failure the reference capture actually hit.
Keypoints and pose
Skeleton keypoints projected from native bones, and why pose is opt-in per class.