Coding transform system in image/video encoders and/or decoders

Coding transform system in image/video encoders and/or decoders

  • CN 1,620,816 A
  • Filed: 01/22/2003
  • Published: 05/25/2005
  • Est. Priority Date: 01/22/2002
  • Status: Active Application
First Claim
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1. one kind is carried out Methods for Coding to the data glossary of symbols, wherein said data symbol set comprises the first quantity data symbol and the value second quantity data symbol different with described first numerical value with first numerical value, wherein will carry out the glossary of symbols of variable length code and concentrate formation from described data symbol, and variable length code is applied to the described glossary of symbols that will carry out variable length code, it is characterized in that:

  • at least one characteristic of variable length code that is applied to carry out the glossary of symbols of variable length code is according to the number of the symbol that will carry out variable length code and by adaptive, and provide indication through the number of the symbol of variable length code, described indication is the variable length codeword of the number of the expression symbol that will carry out variable length code, and it is to select in the set from least two interchangeable variable length codewords set according to the number of the symbol that will carry out variable length code.

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