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Region-based refresh strategy for video compression

  • US 6,304,295 B1
  • Filed: 01/08/1999
  • Issued: 10/16/2001
  • Est. Priority Date: 09/18/1998
  • Status: Expired due to Fees
First Claim
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1. A method for compressing frames of a video sequence, comprising the steps of:

  • (a) dividing each frame into two or more regions, each region comprising a plurality of macroblocks;

    (b) selecting one or more macroblocks in each region to be intra-coded, wherein, for each frame, selection of the one or more macroblocks in each region is independent of selection of the one or more macroblocks in every other region of the frame; and

    (c) encoding each frame, wherein the selected macroblocks are intra-coded.

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