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    Moving picture coding method and moving picture decoding method
    51.
    发明申请
    Moving picture coding method and moving picture decoding method 有权

    公开(公告)号：US20080069212A1

    公开(公告)日：2008-03-20

    申请号：US11976826

    申请日：2007-10-29

    申请人： Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

    发明人： Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

    IPC分类号： H04N7/12 ,  H04Q7/20

    CPC分类号： H04N19/00024 ,  H04N19/105 ,  H04N19/114 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/156 ,  H04N19/162 ,  H04N19/164 ,  H04N19/177 ,  H04N19/51 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61

    摘要： A moving picture coding apparatus (10a) according to the present invention includes a level analyzer (100a) that decides the maximum number of intra frame pixels which can be coded (Nfpx) and the maximum number of storage pixels which can be stored in a picture memory of a decoding apparatus (Nspx) on the basis of a level identifier (Lst) indicating a coding level that is designated by the user, thereby judging whether coding of an input image is possible or not and calculating the maximum number of reference pictures (Nrpn) as the number of reference candidate pictures which can be referred to at inter picture prediction coding, on the basis of the maximum number of intra frame pixels (Nfpx) and the input image size (the number of vertical pixels (Nhpx) and the number of horizontal pixels (Nwpx)). A decoding apparatus to which a bit stream from the moving picture coding apparatus (10a) is supplied can always decode the bit stream satisfactorily, and perform inter picture prediction decoding corresponding to the inter picture prediction coding on the coding end. Consequently, memory areas of a coding apparatus and a decoding apparatus that are adapted to a coding method in which there is no restraint on the capacity of the memory area can be designed.

    Moving picture coding method and moving picture decoding method
    55.
    发明申请
    Moving picture coding method and moving picture decoding method 有权

    公开(公告)号：US20080063058A1

    公开(公告)日：2008-03-13

    申请号：US11976844

    申请日：2007-10-29

    申请人： Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

    发明人： Kiyofumi Abe ,  Shinya Kadono ,  Makoto Hagai ,  Satoshi Kondo

    IPC分类号： H04N7/12

    CPC分类号： H04N19/00024 ,  H04N19/105 ,  H04N19/114 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/156 ,  H04N19/162 ,  H04N19/164 ,  H04N19/177 ,  H04N19/51 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61

    摘要： A moving picture coding apparatus (10a) according to the present invention includes a level analyzer (100a) that decides the maximum number of intra frame pixels which can be coded (Nfpx) and the maximum number of storage pixels which can be stored in a picture memory of a decoding apparatus (Nspx) on the basis of a level identifier (Lst) indicating a coding level that is designated by the user, thereby judging whether coding of an input image is possible or not and calculating the maximum number of reference pictures (Nrpn) as the number of reference candidate pictures which can be referred to at inter picture prediction coding, on the basis of the maximum number of intra frame pixels (Nfpx) and the input image size (the number of vertical pixels (Nhpx) and the number of horizontal pixels (Nwpx)). A decoding apparatus to which a bit stream from the moving picture coding apparatus (10a) is supplied can always decode the bit stream satisfactorily, and perform inter picture prediction decoding corresponding to the inter picture prediction coding on the coding end. Consequently, memory areas of a coding apparatus and a decoding apparatus that are adapted to a coding method in which there is no restraint on the capacity of the memory area can be designed.

    Moving picture coding method and moving picture decoding method
    58.
    发明授权
    Moving picture coding method and moving picture decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号：US07308145B2

    公开(公告)日：2007-12-11

    申请号：US10491153

    申请日：2003-07-22

    申请人： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

    发明人： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

    IPC分类号： G06T9/00 ,  H04N7/32 ,  H04N7/64

    CPC分类号： H04N19/105 ,  H04N19/103 ,  H04N19/117 ,  H04N19/134 ,  H04N19/137 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/18 ,  H04N19/182 ,  H04N19/42 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

    摘要： According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated.

    摘要翻译： 根据本发明的图像编码方法，将由图像号码识别的编码图像作为参考图像存储到存储单元中; 生成用于指定用于生成预测图像的参考图像和系数的图像编号和参考索引之间的对应关系的命令; 通过参考索引来指定对当前要编码的图像中的当前块执行运动补偿时使用的参考图像; 通过使用与参考索引相对应的系数对通过指定参考图片内的运动估计获得的块执行线性预测来生成预测图像; 输出编码图像信号，该编码图像信号包括通过编码作为当前编码图像中的当前块与预测图像之间的差的预测误差获得的编码信号，命令，参考索引和系数。 此时，指示最大参考指标值的信息被编码并包括在编码图像信号中，并且生成指示至少一个图像编号和多个参考索引之间的对应关系的命令。