feat(reid): R6 scene-adaptive ReID accept threshold (tighten in look-alike scenes)#94
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Adds `adaptive_threshold_hi()` pure helper to reid.py that raises the recovery accept threshold toward the most-similar candidate pair (max pairwise cosine + margin), clamped to [base_hi, cap]. Wires `eff_hi` into `_maybe_reid_recover` in camera_worker so look-alike scenes demand higher confidence before rebinding — prevents ID switches without loosening the threshold in distinct scenes. Behavior is identical when <2 candidates or ReID is disabled. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Second **pre-release** of the 2.2.0 reliability + performance roadmap, for real-hardware validation before the stable 2.2.0. Bumps `__version__` to `2.2.0-rc2`; on merge, tag `v2.2.0-rc2` triggers the pre-release installer build. **New since rc1 (all merged, CI-green + multi-agent-reviewed):** - #92 CPU subservice governor — fewer CPU spikes (phase-stagger) + cadence throttle under load - #93 preview-rate-cap (~20fps) - #90 live GPU-acceleration verdict in the Services panel - #91 OpenVINO auto-install for Intel - #94 scene-adaptive ReID threshold - #95/#96 opt-in fused TargetAssociator (off by default) - #97 batched detect_batch primitive **Validate especially:** CPU usage/spikes with all subservices running (your priority), and \`python -m autoptz --bench\` / the Services-panel verdict on Intel-Mac+AMD. To try the new tracking logic, set \`tracking.use_target_associator = true\`. Follow-ups after your validation: P4 coalescing scheduler, wire the associator ReID/pose cues + flip its default, int8 CPU quant, stable Win/Linux device binding. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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The ReID recovery match used a FIXED
reid_threshold_hi(0.70). When two people in frame genuinely look alike (high inter-person appearance similarity), 0.70 can be too low and the lost target re-binds onto the wrong look-alike (an ID switch). When everyone looks distinct, 0.70 is fine.Safe scope: a pure
reid.adaptive_threshold_hi(candidates, base_hi)raises the recovery accept threshold toward the observed max inter-person cosine (clamp(max(base, max_pairwise+0.05), base, 0.95)) — demanding MORE confidence to re-bind in ambiguous scenes, but NEVER below the configured base, and only on the recovery path (target already lost). So it can only tighten matching where wrong-recovery is likely; it cannot regress vs. today. Wired into_maybe_reid_recover(both the scoring and confirmation calls);threshold_lounchanged; identical behavior with <2 candidates or ReID disabled.25 new pure tests; full suite green.
Roadmap item R6 (adaptivity). Real-scene validation (look-alike crowds vs distinct) at the final RC.
🤖 Generated with Claude Code