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Region merging and coding parameter reuse via merging

  • US 10,748,183 B2
  • Filed: 09/05/2019
  • Issued: 08/18/2020
  • Est. Priority Date: 04/13/2010
  • Status: Active Grant
First Claim
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1. A decoder for decoding arrays of information samples encoded in a data stream each representing a picture, the decoder comprising:

  • an extractor configured for;

    extracting, from the data stream, a merge indicator with respect to a region currently being decoded within an array of information samples, wherein the region currently being decoded is one of a plurality of regions obtained by dividing the array of information samples and the merge indicator is indicative of whether the region currently being decoded is to be reconstructed based on at least one motion coding parameter determined based on a candidate motion coding parameter, wherein the candidate motion coding parameter is selected from a set of candidate motion coding parameters; and

    a reconstructor configured for;

    computing, if an indication is to compute, the at least one motion coding parameter based on the candidate motion coding parameter, the computing including;

    determining a prediction of a motion vector of the at least one motion coding parameter based on a motion vector of the candidate motion coding parameter,extracting, from the data stream, a prediction residual of the motion vector of the at least one motion coding parameter, andcombining the prediction and the prediction residual of the motion vector of the at least one motion coding parameter to obtain the motion vector of the at least one motion coding parameter, andreconstructing the region currently being decoded based on the motion vector of the at least one motion coding parameter.

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