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Video Analytics – Week Ending 3/11/12

Findings and Notes 16 alerts active this week, 432 total alerts 215 true positives, 217 false positives NYSE C15: Changes being tested: Camera Movement Detection (CMD) to disable alerts when camera moves RoU to ignore dome reflection spots when camera returns home

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Video Analytics – Week Ending 3/11/12

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  1. Findings and Notes • 16 alerts active this week, 432total alerts • 215true positives, 217 false positives • NYSE C15: • Changes being tested: • Camera Movement Detection (CMD) to disable alerts when camera moves • RoU to ignore dome reflection spots when camera returns home • 2 wkavg shows 35% reduction in FPs • CMD errors were reduced but testing continues with adjusted CMD sensitivity • FEDRS FRB#02: • Change deployed: • Aspect Ratio filter to reduce FPs due to loitering people • Next week’s charts will reflect full week of new profile Video Analytics – Week Ending 3/11/12 All (2.0) No Obj (1.2) (averages taken over weeklong periods, excepting when cameras are down)

  2. Video Analytics – Week Ending 3/11/12 AP-Abandoned Pkg L-Loitering GA-Gate Activity M-Motion

  3. Findings and Notes • 215true positives • Spike due to high activity at service elevator for floor cleaning Video Analytics – Tracking True Positives The number of true positives is not a direct indicator of the accuracy of the SVS system, because activity varies from week to week. Instead, the number of true positives is indicative of the operational environment.

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