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Methods and apparatuses for coding and decoding depth map

  • US 10,455,251 B2
  • Filed: 06/19/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 01/10/2013
  • Status: Active Grant
First Claim
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1. A method for coding a depth map provided by an apparatus executing instructions stored in a non-transitory, computer-readable storage medium so as to configure the apparatus to provide the method of:

  • obtaining, by the apparatus, prediction data of a current image block of the depth map;

    determining, by the apparatus, according to an intra-frame prediction mode of the current image block, whether the intra-frame prediction mode belongs to a preset intra-frame prediction mode set, wherein in the case that the intra-frame prediction mode belongs to the preset intra-frame prediction mode set, determining a predicted pixel value from the obtained prediction data according to a preset step;

    obtaining, by the apparatus, a first average value of the prediction data according to the predicted pixel value, wherein the preset step is determined based on a size of the current image block;

    obtaining, by the apparatus, a residual of the current image block according to the first average value of the prediction data and a pixel value of a pixel of the current image block; and

    coding, by the apparatus, the residual of the current image block.

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