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Regions of interest for quality adjustments

  • US 8,576,908 B2
  • Filed: 07/02/2012
  • Issued: 11/05/2013
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying plural regions of interest for a picture, wherein the plural regions of interest comprise a first region of interest that overlaps at least in part with a second region of interest, wherein the first region of interest has first region-of-interest quantization step size information, and wherein the second region of interest has second region-of-interest quantization step size information;

    determining an overlap quantization setting for a portion of the picture that corresponds to the overlap, wherein the determining comprises choosing between the first region-of-interest quantization step size information and the second region-of-interest quantization step size information;

    adjusting quantization in the portion of the picture that corresponds to the overlap, wherein the adjusting is based at least in part on the overlap quantization setting; and

    encoding the picture using the adjusted quantization.

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