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Transformation block optimization method

  • US 5,825,929 A
  • Filed: 06/04/1996
  • Issued: 10/20/1998
  • Est. Priority Date: 10/05/1995
  • Status: Expired due to Term
First Claim
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1. In a method of encoding in a compressed format video information within a video image frame sequence having first and second video image frames, a method of defining a transformation image frame component having video information in the first video image frame for transformation to the second video image frame, comprising:

  • defining the image frame component in the first video image frame and determining a signal-to-noise ratio for the video information within the image frame component;

    tentatively subdividing the image frame component into plural image frame subcomponents and determining a signal-to-noise ratio for the video information within the image frame subcomponents; and

    adopting the image frame subcomponents as image frame components whenever the signal-to-noise ratio for the image frame subcomponents is greater than the signal-to-noise ratio for the image frame component by more than a predetermined threshold.

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