aicctv
f1ee7f0a36
Three keypoint-trust hardening fixes that reuse the codebase's existing "visible" confidence convention (no new tuning knobs): - P2-9 zone.py: _foot averaged both ankles unconditionally, so a hallucinated ankle (conf~0, often pinned to (0,0)) dragged the foot point into or out of a zone. Now averages only ankles with conf >= 0.2 and falls back to the bbox bottom-centre when neither is trustworthy. - P2-11 geometry.py: head_below_hips used the NOSE regardless of confidence. Now returns False when the nose is below the visibility threshold, so an unconfident/hallucinated nose can't fire the head-below-hips fall cue. The confident-nose path is unchanged (test_fall.py stays green). - P2-10 movenet_pose.py: the CPU MoveNet fallback is single-person, so at a multi-worker site every worker but one is silently invisible to fall/zone/ghost detection. Construction now logs a loud startup WARNING pointing to the Hailo backend. Tests: test_zone (bbox fallback), test_geometry (low-conf nose), and test_movenet_pose (caplog warning). Full python suite: 157 passed, 2 skipped. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Xmn8KZWqiQUguEMRtn6rW |
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