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Correlation based in frame video tracker

  • US 20040175019A1
  • Filed: 03/03/2003
  • Published: 09/09/2004
  • Est. Priority Date: 03/03/2003
  • Status: Active Grant
First Claim
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1. A method to track objects in a video processing system from image frame to image frame, comprising the steps of:

  • capturing a first image;

    identifying an object of interest in said first image with a reference patch;

    capturing a second image;

    estimating a position of said object of interest in said second image through the use of a dead reckoning algorithm, and marking said position with a trial patch;

    cross correlating said trial patch and said reference patch;

    using said cross correlation to make corrections to said dead reckoning algorithm;

    further using said cross correlation to calculate tie points;

    using said tie points to establish a common coordinate system between said first and said second image; and

    identifying reference patches that have been identified by a classification algorithm, and releasing said reference patches to free up processing resources.

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