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Motion estimation

  • US 6,445,741 B1
  • Filed: 04/26/2001
  • Issued: 09/03/2002
  • Est. Priority Date: 10/15/1997
  • Status: Expired due to Term
First Claim
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1. A method of estimating motion vectors from sub-sampled video data, the method comprising the steps:

  • recursively estimating, by means of a motion estimator and a first vector prediction memory, first vectors between a first current image with a first sub-sampling phase and an earlier image sub-sampled with a second sub-sampling phase;

    recursively estimating, by means of said motion estimator and a second vector prediction memory, second vectors between a second current image with the second sub-sampling phase and said first current image sub-sampled with the first sub-sampling phase; and

    combining said first and second vectors.

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