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Video coding system

  • US 20030053545A1
  • Filed: 10/08/2002
  • Published: 03/20/2003
  • Est. Priority Date: 09/20/1996
  • Status: Abandoned Application
First Claim
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1. A motion estimation system for a video coder comprising:

  • means for receiving a video frame to be coded;

    a series of motion estimators of varying complexity, for estimating a motion vector field between the said received frame and a reference frame; and

    control means for selecting the subsequent motion estimator in the series only if a prediction error associated with the motion vector field estimated by the currently selected motion estimator exceeds a predetermined threshold.

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