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INTRA PREDICTION FROM A PREDICTIVE BLOCK

  • US 20150195559A1
  • Filed: 01/08/2015
  • Published: 07/09/2015
  • Est. Priority Date: 01/09/2014
  • Status: Active Grant
First Claim
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1. A method of decoding video data, the method comprising:

  • determining a coding unit of a picture of the video data is coded using an intra block copy mode;

    determining from a plurality of vectors associated with the coding unit a vector for a first chroma block of the coding unit;

    locating a first chroma reference block using the vector, wherein the first chroma reference block is in the picture;

    predicting the first chroma block based on the first chroma reference block;

    using the same vector that was used to locate the first chroma reference block, locating a second chroma reference block for a second chroma block of the same coding unit, wherein the second chroma reference block is in the picture, and different from the first chroma reference block; and

    predicting the second chroma block of the coding unit based on the second chroma reference block.

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