- 专利标题: Method and apparatus for coding of intra prediction mode
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申请号: US14123093申请日: 2012-06-14
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公开(公告)号: US10123008B2公开(公告)日: 2018-11-06
- 发明人: Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
- 申请人: Tzu-Der Chuang , Ching-Yeh Chen , Yu-Wen Huang , Shan Liu , Zhi Zhou , Shaw-Min Lei
- 申请人地址: TW Zhubei
- 专利权人: HFI Innovation Inc.
- 当前专利权人: HFI Innovation Inc.
- 当前专利权人地址: TW Zhubei
- 代理机构: Wolf, Greenfield & Sacks, P.C.
- 国际申请: PCT/CN2012/076907 WO 20120614
- 国际公布: WO2012/171463 WO 20121220
- 主分类号: H04N7/32
- IPC分类号: H04N7/32 ; H04N7/26 ; H04N19/11 ; H04N19/159 ; H04N19/176 ; H04N19/70 ; H04N19/593 ; H04N19/463 ; H04N19/186 ; H04N19/136 ; H04N19/169 ; H04N19/44 ; H04N19/91
摘要:
Embodiments according to the present invention configure the intra prediction mode candidates into multi-level MPM sets, which comprise at least a first-level MPM set and a second-level MPM set. Encoding or decoding a current intra prediction mode is based on the multi-level MPM sets, where one syntax element of the syntax information to be generated or decoded respectively is associated with evaluating the current intra prediction mode using the first-level MPM set. A method and apparatus for chroma intra prediction mode encoding and decoding are also disclosed. The chroma intra prediction mode set includes a Luma-based chroma prediction Mode (LM), a Direct Mode (DM) and four other modes. The codeword set comprises variable-length codewords and fixed-length codewords, and the fixed-length codewords are longer than the variable-length codewords. The variable-length codewords are used for the DM and LM, and the fixed-length codewords are used for the four other modes.
公开/授权文献
- US20140086323A1 METHOD AND APPARATUS FOR CODING OF INTRA PREDICTION MODE 公开/授权日:2014-03-27