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    • 8. 发明公开
    • PROCÉDÉ DE CODAGE ET DÉCODAGE D'IMAGES, DISPOSITIF DE CODAGE ET DÉCODAGE ET PROGRAMMES D'ORDINATEUR CORRESPONDANTS
    • 方法和解码图像进行编码以及解码器械及相关编码计算机程序
    • EP2724536A1
    • 2014-04-30
    • EP12734974.4
    • 2012-06-20
    • Orange
    • HENRY, FelixPATEUX, StéphaneCLARE, Gordon
    • H04N7/26
    • H04N19/119H04N19/124H04N19/13H04N19/136H04N19/137H04N19/174H04N19/176H04N19/196H04N19/197H04N19/436H04N19/44H04N19/50H04N19/503H04N19/51H04N19/593H04N19/61H04N19/625H04N19/70H04N19/91
    • The invention relates to an encoding method including cutting out (C1) the image from a plurality of blocks (MB) capable of containing symbols belonging to a predetermined set of symbols, grouping (C2) blocks in a predetermined number (P) of subsets of blocks (SE1, SE2,…SEk,…,SEP), encoding (C3), using an entropic module, each of said subsets of blocks, by combining digital information with the symbols of each block of a subset in question, said encoding step including, for the first block of the image, a sub-step (C33) of initializing status variables of said entropic encoding module, and then generating at least one sub-stream of data representative of at least one of said subsets of encoded blocks. In the event the current block is the first block being encoded of a subset of blocks in question, the probabilities of a symbol appearing for said first current block are those determined for a predetermined encoded and decoded block of at least one other subset. In the event the current unit is the last encoded unit of the subset in question, all of the digital information that was associated with the symbols during the encoding of the blocks of the said subset in question are written (C45) in the sub-stream representative of at least said subset in question, and the initialization sub-step is implemented (C46).
    • 一种用于译码包括方法; 分割的图像成块; 分组块为多个子集; 编码,使用的熵编码模块,每个子集,由数字信息用的一个子集,包括图像的第一个块的每个块的码元相关联,初始化编码模块的状态变量; 和生成数据代表块的编码子集中的至少一个的子流。 其中的当前块是编码对象的子集的第一个块,对于第一当前块的符号出现概率是确定性的开采基于那些用于至少一个其他子集的经编码和解码预定块。 当前块是子集的负载编码块:写入,在代表子集的子流,编码的子集的块,并且执行过程中与所述符号相关联的整个数字信息的初始化子步骤 ,