- 专利标题: Method and apparatus for improved entropy encoding and decoding
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申请号: US13879378申请日: 2011-10-06
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公开(公告)号: US09693056B2公开(公告)日: 2017-06-27
- 发明人: Yang Hu , Joel Sole , Xiaoan Lu , Peng Yin , Yunfei Zheng
- 申请人: Yang Hu , Joel Sole , Xiaoan Lu , Peng Yin , Yunfei Zheng
- 申请人地址: FR Issy les Moulineaux
- 专利权人: THOMSON LICENSING
- 当前专利权人: THOMSON LICENSING
- 当前专利权人地址: FR Issy les Moulineaux
- 代理商 Brian J. Dorini; Ronald J. Kolczynski
- 国际申请: PCT/US2011/055047 WO 20111006
- 国际公布: WO2012/051033 WO 20120419
- 主分类号: H04B1/66
- IPC分类号: H04B1/66 ; H04N19/60 ; H03M7/40 ; H04N19/70 ; H04N19/46 ; H04N19/13 ; H04N19/61
摘要:
Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.
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