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Visualizing and updating learned trajectories in video surveillance systems

  • US 8,280,153 B2
  • Filed: 08/18/2009
  • Issued: 10/02/2012
  • Est. Priority Date: 08/18/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method of generating a display of information learned by a video surveillance system, comprising:

  • receiving a request to view a trajectory map for a scene depicted in a sequence of video frames captured by a video camera;

    retrieving a background image associated with the scene;

    retrieving one or more trajectories associated with one or more foreground objects depicted in the sequence of video frames, wherein each trajectory plots a path traversed by a respective foreground object in moving through the scene; and

    superimposing a visual representation of each retrieved trajectory over the background image at a location corresponding to the path traversed by the respective foreground object in moving through the scene.

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