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Identifying Spurious Regions In A Video Frame

  • US 20080170751A1
  • Filed: 02/06/2006
  • Published: 07/17/2008
  • Est. Priority Date: 02/04/2005
  • Status: Active Grant
First Claim
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1. A method of tracking an object appearing in a video sequence comprising a plurality of frames, each frame comprising a plurality of pixels, the method comprising:

  • (i) comparing first and second frames of the video sequence to identify a region of pixels therein representing an object having inter-frame motion;

    (ii) determining whether said region appears in a predetermined number of subsequent frames, and, if so, assigning a motion parameter to said region indicative of the change in position thereof over said predetermined number of frames;

    (iii) comparing said motion parameter with a threshold value to determine whether or not said region is to be tracked; and

    (iv) if the region is to be tracked, recording the frame position of said region for subsequent frames in which said region is identified.

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