Single-camera tracking vs cross-camera re-identification, the honest accuracy metrics (MOTA/IDF1/HOTA, the single-to-cross-camera drop, never 100%), how a track surfaces via ONVIF Profile M (the per-device ObjectId caveat), where it runs (edge vs server/cloud), and the privacy line (a movement trail is personal data; face/gait is biometric) — on one page.
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