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Scanning camera-based video surveillance system

  • US 9,805,566 B2
  • Filed: 05/05/2016
  • Issued: 10/31/2017
  • Est. Priority Date: 09/08/2005
  • Status: Active Grant
First Claim
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1. A video surveillance system comprising:

  • a processor;

    a storage device storing software instructions; and

    a camera configured to pan, tilt, and zoom,wherein the software instructions, when executed by the processor, control the video surveillance system to perform operations comprising;

    controlling the camera to scan a scene using a first field of view;

    determining a first set of video primitives using first image data received from the camera during the scan, the first set of video primitives describing targets in the first field of view, motion of the camera during the scan, and the scene in the first field of view;

    detecting a target of interest in the first field of view using the first set of video primitives;

    based on information about the target of interest in the first set of video primitives, controlling the camera to continuously track the target of interest using a second field of view by moving the camera;

    determining a second set of video primitives using second image data received from the camera during the continuous tracking, the second set of video primitives describing the target of interest in the second field of view, motion of the camera during the continuous tracking, and the scene in the second field of view;

    determining a third field of view of the target of interest using information describing the target of interest in the second set of video primitives and based on image quality criteria;

    controlling the camera to obtain the third field of view;

    determining that the camera has obtained in the third field of view;

    determining a third set of video primitives using third image data received from the camera from the third field of view, the third set of video primitives describing the target of interest in the third field of view;

    determining an identity of the target of interest using the third set of video primitives; and

    issuing an alert including the identity of the target of interest.

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