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MOVING PICTURE DECODING METHOD, MOVING PICTURE CODING METHOD, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE CODING APPARATUS, AND MOVING PICTURE CODING AND DECODING APPARATUS

  • US 20120163457A1
  • Filed: 12/27/2011
  • Published: 06/28/2012
  • Est. Priority Date: 12/28/2010
  • Status: Abandoned Application
First Claim
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1. A moving picture decoding method comprising:

  • analyzing a coded moving picture bitstream to obtain difference data of a target block among a plurality of blocks of two or more sizes;

    performing intra prediction on the target block to calculate values of predicted samples of the target block; and

    calculating reconstructed samples of the target block by adding the difference data and the values of the predicted samples,wherein in said performing of intra prediction,validity of each of reference samples that are located one of immediately above and immediately to the left of the target block is determined, and when the reference samples include both a valid reference sample and an invalid reference sample, the intra prediction is performed using the valid reference sample, andan intra-predicted reference sample is determined as a valid reference sample, and an inter-predicted reference sample is determined as an invalid reference sample.

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