Method and apparatus for adaptively selecting context model for entropy coding
US8351502B2 · kind B2 · utility
15Cited by
2References
72Claims
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Key dates
| Filing date | Apr 18, 2006 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Apr 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adaptively selecting a context model for entropy coding and a video decoder are provided. 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 includes the steps of calculating the energy of the residual data for the lower layer block, determining a coding method for the residual prediction flag according to the energy, and coding the residual prediction flag using the determined coding method.
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