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    SIGNAL RESHAPING APPROXIMATION
    1.
    发明公开
    SIGNAL RESHAPING APPROXIMATION 审中-公开
    信号重构近似

    公开(公告)号：EP3272123A1

    公开(公告)日：2018-01-24

    申请号：EP16712649.9

    申请日：2016-03-17

    申请人： Dolby Laboratories Licensing Corporation

    发明人： SU, Guan-Ming ,  WANG, Qiuwei ,  CHOU, Hsuan-Ting ,  KAMBALLUR KOTTAYIL, Navaneeth

    IPC分类号： H04N19/30 ,  H04N19/126

    CPC分类号： H04N19/1887 ,  H04N19/179 ,  H04N19/192 ,  H04N19/30 ,  H04N19/70 ,  H04N21/47205 ,  H04N21/478

    摘要： Statistical values are computed based on received source images. An adaptive reshaping function is selected for one or more source images based on the one or more statistical values. A portion of source video content is adaptively reshaped, based on the selected adaptive reshaping function to generate a portion of reshaped video content. The portion of source video content is represented by the one or more source images. An approximation of an inverse of the selected adaptive reshaping function is generated. The reshaped video content and a set of adaptive reshaping parameters defining the approximation of the inverse of the selected adaptive reshaping function are encoded into a reshaped video signal. The reshaped video signal may be processed by a downstream recipient device to generate a version of reconstructed source images, for example, for rendering with a display device.

    METHOD AND APPARATUS FOR CODING OF INTRA PREDICTION MODE
    6.
    发明公开
    METHOD AND APPARATUS FOR CODING OF INTRA PREDICTION MODE 审中-公开
    方法和装置进行编码的INTRAPRÄDIKTIONSMODUS

    公开(公告)号：EP2721824A1

    公开(公告)日：2014-04-23

    申请号：EP12801060.0

    申请日：2012-06-14

    申请人： Mediatek Inc.

    发明人： CHUANG, Tzu-Der ,  CHEN, Ching-Yeh ,  HUANG, Yu-Wen ,  LIU, Shan ,  ZHOU, Zhi ,  LEI, Shaw-Min

    IPC分类号： H04N7/26 ,  G06K9/64 ,  G06K9/00

    CPC分类号： H04N19/11 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  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.