Method and apparatus for entropy-coding/entropy-decoding video data using different binarization methods
US9374602B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 24, 2008 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a method and apparatus for entropy-encoding/entropy-decoding video data. The method of entropy-encoding video data includes binarizing coefficients of the frequency domain, which are generated by transforming a residual block of a current block into the frequency domain, using different binarization methods and performing binary arithmetic coding on the binarized coefficients. In this way, the coefficients are binarized adaptively according to whether the frequencies of the coefficients are high or low, thereby improving the compression efficiency of the video data.
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