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Polygon block matching method

  • US 5,796,855 A
  • Filed: 06/04/1996
  • Issued: 08/18/1998
  • Est. Priority Date: 10/05/1995
  • Status: Expired due to Term
First Claim
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1. A block matching motion estimation method for estimating motion of corresponding pixels between first and second video image frames, comprising:

  • defining a reference pixel block of multiple pixels relative to a first reference pixel in the first video image frame and a sample pixel block of multiple sample pixels in the second video image frame, the reference pixel block being a quadrilateral array of pixels;

    determining and storing for the pixels in the sample pixel block correlations to the pixels in the reference pixel block, including using shape of an arbitrary image feature to exclude pixels in the reference pixel block located outside the arbitrary image feature from correlation determinations; and

    identifying from the correlations a first sample pixel corresponding to the first reference pixel.

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