×

Computer vision-based object tracking system

  • US 8,803,978 B2
  • Filed: 05/23/2006
  • Issued: 08/12/2014
  • Est. Priority Date: 05/23/2006
  • Status: Active Grant
First Claim
Patent Images

1. A computer-implemented method of utilizing a camera device to track an object, the method comprising:

  • utilizing the camera device in a detection mode to detect movement of a point light source associated with the object within an overall image sensing area, the camera device having a first frame acquisition rate in the detection mode;

    switching from the detection mode to a tracking mode in response to the detected movement;

    determining a potential range of movement of the point light source based on a location of the detected movement and a given time period for potential movement of the point light source;

    determining boundaries of a region of interest within the overall image sensing area based at least in part upon the determined potential range of movement of the point light source, wherein the boundaries of the region of interest define an area that is less than the overall image sensing area in the detection mode; and

    utilizing the camera device in the tracking mode, in which a frame acquisition rate of the camera device is increased to a second frame acquisition rate that is higher than the first frame acquisition rate in the detection mode, to track the point light source within the determined boundaries of the region of interest.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×