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    Variable length coding method and variable length decoding method
    91.
    发明授权
    Variable length coding method and variable length decoding method 有权
    可变长度编码方法和可变长度解码方法

    公开(公告)号：US08804838B2

    公开(公告)日：2014-08-12

    申请号：US13603821

    申请日：2012-09-05

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

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

    IPC分类号： H04N11/02

    CPC分类号： H04N19/129 ,  H03M7/40 ,  H03M7/4006 ,  H04N19/00278 ,  H04N19/13 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/196 ,  H04N19/60 ,  H04N19/61

    摘要： A variable length coding method is comprised of: a coefficient value scanning step in which an RL sequence generation unit 203, a reordering unit 202, and a binarization unit 203 scan coefficient values within a block in a predetermined scanning order starting at a higher-frequency component toward a lower-frequency component; and an arithmetic coding step in which an arithmetic coding unit 205 and a table storage unit 204 perform arithmetic coding on the absolute values of the coefficient values according to the scanning order used in the coefficient value scanning step, by switching between probability tables 1˜4 for use, wherein, in the arithmetic coding step, a probability table to be used is switched to another probability table in one direction, when the arithmetic-coded absolute values of the coefficient values include an absolute value exceeding a predetermined threshold value.

    摘要翻译： 可变长度编码方法包括：系数值扫描步骤，其中RL序列生成单元203，重新排序单元202和二值化单元203以从较高频率开始的预定扫描顺序扫描块内的系数值 分量朝向较低频率分量; 以及算术编码步骤，其中算术编码单元205和表存储单元204通过在概率表1〜4之间切换，根据系数值扫描步骤中使用的扫描顺序对系数值的绝对值进行算术编码 其中，在算术编码步骤中，当所述系数值的算术编码绝对值包括超过预定阈值的绝对值时，要使用的概率表在一个方向切换到另一概率表。

    MOTION VECTOR CODING AND DECODING METHODS
    94.
    发明申请
    MOTION VECTOR CODING AND DECODING METHODS 有权
    运动矢量编码和解码方法

    公开(公告)号：US20120275520A1

    公开(公告)日：2012-11-01

    申请号：US13484368

    申请日：2012-05-31

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

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

    IPC分类号： H04N7/32 ,  H04N7/28

    CPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/52 ,  H04N19/573

    摘要： A coding apparatus includes a motion vector coding unit that codes an inputted motion vector. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors of coded neighboring blocks. The predicted vector is generated by one of the following methods: motion vectors referring to the same picture are selected from among the motion vectors for the neighboring blocks; motion vectors of respective neighboring blocks are ordered in a, predetermined order, and the motion vectors of the same order rank are selected from the ordered motion vectors; and the predicted vector of a second motion vector of the current block is the first motion vector, and if the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled according to the temporal distance between the pictures.

    摘要翻译： 编码装置包括：编码输入的运动矢量的运动矢量编码单元。 基于运动矢量与从编码的相邻块的运动矢量获得的预测矢量之间的差，对每个当前块的运动矢量进行编码。 通过以下方法之一生成预测矢量：从相邻块的运动矢量中选择参考相同图像的运动矢量; 按照预定顺序对各个相邻块的运动矢量进行排序，从有序运动矢量中选择相同次序秩的运动矢量; 并且当前块的第二运动矢量的预测向量是第一运动矢量，并且如果第二运动矢量和第一运动矢量指的是不同的图像，则根据图像之间的时间距离来缩放第一运动矢量。

    Motion vector coding method and motion vector decoding method
    95.
    发明授权
    Motion vector coding method and motion vector decoding method 有权
    运动矢量编码方法和运动矢量解码方法

    公开(公告)号：US08290047B2

    公开(公告)日：2012-10-16

    申请号：US11979012

    申请日：2007-10-30

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

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

    IPC分类号： H04N7/18

    CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/137 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/521 ,  H04N19/533 ,  H04N19/537 ,  H04N19/56 ,  H04N19/577 ,  H04N19/593 ,  H04N19/61

    摘要： A motion vector decoding apparatus decodes a coded motion vector of a current block in a moving picture. The motion vector decoding apparatus includes a neighboring block specification unit specifying a neighboring block which is located in the neighborhood of the current block and has already been decoded; a judgment unit judging whether or not the neighboring block has been coded using a motion vector of another block; a prediction unit deriving a predictive motion vector of the current block using a motion vector calculated from the motion vector of the other block as a motion vector of the neighboring block, when it is judged that the neighboring block has been coded using the motion vector of the other block; and a decoding unit decoding the coded motion vector of the current block using the predictive motion vector.

    摘要翻译： 运动矢量解码装置对运动图像中的当前块的编码运动矢量进行解码。 运动矢量解码装置包括指定位于当前块的附近并已被解码的相邻块的相邻块指定单元; 判断单元，判定相邻块是否已经使用另一个块的运动矢量进行了编码; 预测单元，当使用由所述其他块的运动矢量计算出的运动矢量作为所述相邻块的运动矢量导出当前块的预测运动矢量时，当使用所述相邻块的运动矢量判断所述相邻块已被编码时， 另一块 以及解码单元，使用预测运动矢量对当前块的编码运动矢量进行解码。

    Motion vector coding and decoding methods
    99.
    发明授权
    Motion vector coding and decoding methods 有权

    公开(公告)号：US08155201B2

    公开(公告)日：2012-04-10

    申请号：US11980681

    申请日：2007-10-31

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

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

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/52 ,  H04N19/573

    摘要： A motion vector coding method and apparatus that improves efficiency of coding motion vectors when a current block is coded using a plurality of motion vectors. The apparatus includes a motion vector coding unit that codes a motion vector inputted from a motion vector detecting unit. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors for previously coded neighboring blocks. The predicted vector is generated by one of the following processes: (A) the motion vectors which refer to the same picture are selected from among the motion vectors for the neighboring blocks so as to generate the predicted vector; (B) the motion vectors for the respective neighboring blocks are ordered in the predetermined order, and the motion vectors of the same order rank are selected from the ordered motion vectors so as to generate the predicted vector; and (C) the predicted vector for the second motion vector of the current block shall be the first motion vector, and if the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled according to the temporal distance between the pictures so as to generate the predicted vector.

    Motion vector coding and decoding method
    100.
    发明授权
    Motion vector coding and decoding method 有权

    公开(公告)号：US08155200B2

    公开(公告)日：2012-04-10

    申请号：US11980606

    申请日：2007-10-31

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

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

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/52 ,  H04N19/573

    摘要： A motion vector coding method and apparatus that improves efficiency of coding motion vectors when a current block is coded using a plurality of motion vectors. The apparatus includes a motion vector coding unit that codes a motion vector inputted from a motion vector detecting unit. A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors for previously coded neighboring blocks. The predicted vector is generated by one of the following processes: (A) the motion vectors which refer to the same picture are selected from among the motion vectors for the neighboring blocks so as to generate the predicted vector; (B) the motion vectors for the respective neighboring blocks are ordered in the predetermined order, and the motion vectors of the same order rank are selected from the ordered motion vectors so as to generate the predicted vector; and (C) the predicted vector for the second motion vector of the current block shall be the first motion vector, and if the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled according to the temporal distance between the pictures so as to generate the predicted vector.