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Entropy coding of interleaved sub-blocks of a video block

  • US 8,483,282 B2
  • Filed: 10/08/2008
  • Issued: 07/09/2013
  • Est. Priority Date: 10/12/2007
  • Status: Expired due to Fees
First Claim
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1. A method of encoding a video block, the method comprising:

  • scanning the video block to define a one-dimensional vector of coefficients;

    dividing the one-dimensional vector of coefficients to define a set of one-dimensional vectors of sub-blocks of the video block;

    coding a syntax element that defines a number of non-zero value sub-blocks of the video block, wherein the non-zero value sub-blocks include at least one non-zero coefficient;

    interleaving coefficients of the non-zero value sub-blocks to define interleaved sub-blocks;

    entropy coding the interleaved sub-blocks; and

    skipping entropy coding of zero-value sub-blocks, wherein zero-value sub-blocks comprise sub-blocks of the video block that have all coefficients equal to zero.

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