aicctv
32f2237db7
- P2-6 tracking: global greedy IoU matching (all pairs, best overlap first) replaces track-iteration-order greedy, so a crossing worker's box can no longer be stolen by whichever track came first. Any track in a contended match (person overlapping 2 tracks, or track overlapping 2 persons) is reported via tracker.ambiguous(); run_once resets its detector + smoother state so FALLEN/baseline/immobility never ride an id swap onto the wrong person. A genuinely fallen worker re-confirms within prone_confirm_s. - P2-7 fall: STANDING -> FALLING now requires sustained prone (falling_confirm_s, 1.0s). One prone-looking frame (a bend, a bbox glitch) no longer arms the ghost detector's CRITICAL if the person then leaves. FALLEN / no_motion timing is unchanged (keyed off prone_since). - P2-8 app: run_once feeds the engine and smoothers only tracks re-detected this tick; a track coasting inside max_age with a frozen frame is no-data, so prone-confirm / no-motion / immobility timers cannot accrue on stale data. Re-detection still confirms the fall (dropout pauses evidence). TDD: 7 new tests verified failing on the pre-fix code (git stash), then 203 passed / 2 skipped (hardware) with the fixes. |
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