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Method and apparatus for adaptively selecting context model for entropy coding

  • US 20060233254A1
  • Filed: 04/18/2006
  • Published: 10/19/2006
  • Est. Priority Date: 04/19/2005
  • Status: Active Grant
First Claim
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1. A method of coding a residual prediction flag indicating whether residual data for an enhancement layer block of a multi-layered video signal is predicted from residual data for a lower layer block corresponding to the residual data for the enhancement layer block, the method comprising:

  • calculating characteristic data for the lower layer block, wherein the characteristic data comprises at least one of energy of the residual data of the lower layer block and a value of a coded block pattern (CBP) of the lower layer block;

    determining a coding method for the residual prediction flag according to the characteristic data; and

    coding the residual prediction flag using the determined coding method.

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