Signaling of prediction size unit in accordance with video coding

  • US 9,332,283 B2
  • Filed: 06/14/2012
  • Issued: 05/03/2016
  • Est. Priority Date: 09/27/2011
  • Status: Active Grant
First Claim
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1. A video processing device comprising:

  • a video encoder configured to;

    encode an input video signal to generate an output bitstream;

    employ a single binary tree when processing at least one P slice and at least one B slice to generate the output bitstream, wherein the at least one P slice is used for unidirectional prediction forward or behind in at least one frame sequence, and wherein the at least one B slice is used for bidirectional prediction both forward and behind in the at least one frame sequence;

    employ the single binary tree to encode coding unit (CU) prediction based on a selected CU that is selected from a plurality of CUs when generating a first syntax element for both the at least one P slice and the at least one B slice that undergo entropy encoding to generate the output bitstream, wherein the first syntax element specifies intra-prediction processing or inter-prediction processing for the selected CU; and

    employ the single binary tree to encode prediction unit (PU) partition mode based on the selected CU when generating a second syntax element for both the at least one P slice and the at least one B slice that undergo the entropy encoding to generate to generate the output bitstream, wherein the second syntax element specifies the PU partition mode for the selected CU, wherein the PU partition mode is based on a size N×

    N PU when the selected CU is a smallest CU (SCU) of the plurality of CUs and is based on a different size PU than the size N×

    N PU when the selected CU is another CU than the SCU of the plurality of CUs, wherein N is a positive integer.

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