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Entropy encoding and decoding scheme

  • US 9,473,169 B2
  • Filed: 12/28/2015
  • Issued: 10/18/2016
  • Est. Priority Date: 01/14/2011
  • Status: Active Grant
First Claim
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1. A method for decoding comprising:

  • receiving, by a first decoder, a first portion of a bitstream;

    reconstructing, by the first decoder, source symbols of a first sequence of source symbols from codewords of the first portion of the bitstream;

    receiving, by a second decoder, a second portion of the bitstream;

    reconstructing, by the second decoder, source symbols of a second sequence of source symbols from codewords of the second portion of the bitstream;

    retrieving, by a composer, source symbols from the first sequence and source symbols from the second sequence; and

    composing, by the composer, a sequence of syntax elements having a value range which is sub-divided into a sequence of partitions from the first sequence of source symbols and the second sequence of source symbols by composing each syntax element from a respective number of source symbols by, for at least a subgroup of the syntax elements, determining the respective number of source symbols based on a value of the respective syntax elements and a partition of the sequence of partitions, and by summing-up the values of the respective number of source symbols so as to obtain the value of the syntax element,wherein the composer is configured to adapt one or more of limits between the partitions according to previously reconstructed source symbols.

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