Video encoding method and video decoding method for enabling bit depth scalability

Video encoding method and video decoding method for enabling bit depth scalability

  • CN 101,622,878 A
  • Filed: 01/10/2007
  • Published: 01/06/2010
  • Est. Priority Date: 01/10/2007
  • Status: Active Grant
First Claim
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1. one kind is used for the method for bit depth scalable mode to coding video data, wherein, by the basic layer video prediction enhancement-layer video of rebuilding, and wherein at least one sign is added to described data, to determine the process of bit depth scalability, wherein:

  • If described sign has first value, then do not utilize bit depth inter-layer prediction;

    If described index has second value, then expression utilizes the bit depth inter-layer prediction based on displacement;

    If described index has other value of non-described first value or described second value, then utilize bit depth inter-layer prediction based on the advanced bit depth prediction, wherein, described advanced bit depth prediction is smoothed histogram method or Local Polynomial approximation method.

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