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    Picture coding method and picture decoding method
    51.
    发明授权
    Picture coding method and picture decoding method 有权
    图像编码方法和图像解码方法

    公开(公告)号：US07583731B2

    公开(公告)日：2009-09-01

    申请号：US11392734

    申请日：2006-03-30

    申请人： Makoto Hagai ,  Shinya Kadono

    发明人： Makoto Hagai ,  Shinya Kadono

    IPC分类号： H04N7/12

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/156 ,  H04N19/159 ,  H04N19/162 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82

    摘要： A picture coding apparatus (300) is a picture coding apparatus that codes a difference between picture data (Img) representing an input picture and predictive picture data (Pred) representing a predictive picture for the input picture and generates coded picture data, and includes a picture decoding unit (104) for decoding coded picture data (Img) after the picture data (Img) is coded; inter pixel filters A and B (303 and 304) for performing inter pixel filter operation for decoded picture data (Recon) obtained by the picture decoding unit (104); switches (301 and 302) for selecting one of the inter pixel filters; and an inter picture predicting unit (108) for generating the predictive picture data (Pred) for the input picture data (Img) using filtered decoded picture data (FilteredImg1), as reference picture data (Ref), obtained by the selected inter pixel filter.

    摘要翻译： 图像编码装置（300）是编码表示输入图像的图像数据（Img）与表示输入图像的预测图像的预测图像数据（Pred）之间的差的图像编码装置，生成编码图像数据，并且包括 在图像数据（Img）被编码之后，解码编码图像数据（Img）的图像解码单元（104） 用于对由图像解码单元（104）获得的解码图像数据（Recon）执行像素间滤波操作的像素间滤波器A和B（303和304）; 用于选择所述像素间滤波器之一的开关（301和302） 以及帧间预测单元，用于使用经过滤波的解码图像数据（FilteredImg1）作为参考图像数据（Ref），通过所选择的像素间滤波器（Ref）产生用于输入图像数据（Img）的预测图像数据（Pred） 。

    Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device
    53.
    发明授权
    Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device 有权
    运动图像预测方法，运动图像编码方法和装置，以及运动图像解码方法和装置

    公开(公告)号：US07542510B2

    公开(公告)日：2009-06-02

    申请号：US10500801

    申请日：2003-09-04

    申请人： Shinya Kadono ,  Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen

    发明人： Shinya Kadono ,  Chong Soon Lim ,  Teck Wee Foo ,  Sheng Mei Shen

    IPC分类号： H04N7/12 ,  G06K9/36

    CPC分类号： H04N19/51 ,  H04N19/105 ,  H04N19/114 ,  H04N19/119 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/31 ,  H04N19/503 ,  H04N19/577

    摘要： A moving picture prediction method for enabling a calculation amount and a storage capacity to be reduced in a prediction about a moving picture by scaling processing is provided. A method for predicting the value P of Time T from the value P0 of Time T0 and the value P1 of Time T1 includes a step of judging whether it is possible to generate a predictive value with a predetermined significant number of bits by scaling using Time T0, T1 and T (Step S90); a step of predicting the value P from the values P0 and P1 by scaling using Time T0, T1 and T when it is possible to generate a predictive value with the predetermined significant number of bits (Step S92); and a step of predicting the value P from the values P0 and P1 without using Time T0, T1 and T when it is impossible to generate a predictive value with the predetermined significant number of bits (Step S91).

    摘要翻译： 提供一种运动图像预测方法，用于通过缩放处理使关于运动图像的预测中的计算量和存储容量减小。 从时间T0的值P0和时间T1的值P1预测时间T的值P的方法包括以下步骤：通过使用时间T0进行缩放来判断是否可以通过缩放生成具有预定有效位数的预测值 ，T1和T（步骤S90）; 当可以产生具有预定有效位数的预测值时，通过使用时间T0，T1和T的缩放来从值P0和P1中预测值P的步骤（步骤S92）。 以及当不可能用预定的有效位数生成预测值时，不使用时间T0，T1和T，从值P0和P1预测值P的步骤（步骤S91）。

    Variable length coding method and variable length decoding method
    54.
    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：US07541948B2

    公开(公告)日：2009-06-02

    申请号：US11495600

    申请日：2006-07-31

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

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

    IPC分类号： H03M7/40

    CPC分类号： G06T9/005 ,  G11B20/1426 ,  H03M5/145 ,  H03M7/40 ,  H03M7/46 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/69 ,  H04N19/89 ,  H04N19/93

    摘要： An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes a reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values.

    摘要翻译： 图像编码装置提供游程长度编码单元RLE1，该游程长度编码单元RLE1对通过使用指示连续零系数的数量的运行值Run和可变长度编码处理的等级来计算通过将图像信号的频率分量量化为可变长度编码处理而获得的量化系数 值Lev，其表示零系数之后的非零系数的值。 游程长度编码单元RLE1包括用于重新排列水平值Lev的重排序单元Lreodr; 可变长度编码器LVLC，用于通过使用根据量化参数QP的值选择的码表来对重新排序的电平值ROLev进行编码; 用于重新排序运行值的重新排序单元Rreodr从量化系数的高频分量运行到低频分量; 以及可变长度编码器RVLC，用于通过使用根据已经处理的运行值的数量选择的代码表来对重排序的运行值RORun进行编码。

    PICTURE CODING METHOD AND PICTURE DECODING METHOD
    56.
    发明申请
    PICTURE CODING METHOD AND PICTURE DECODING METHOD 有权
    图像编码方法和图像解码方法

    公开(公告)号：US20090034616A1

    公开(公告)日：2009-02-05

    申请号：US12240379

    申请日：2008-09-29

    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： H04N7/12

    CPC分类号： G06T9/004 ,  H04N19/105 ,  H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61

    摘要： The method includes the following units: a coefficient number detecting unit (109) for detecting the number of coefficients which has a value other than 0 for each block according to the generated coefficient, a coefficient number storing unit (110) for storing the number of coefficients detected, a coefficient number coding unit (111) for selecting a table for variable length coding based on the numbers of coefficients in the coded blocks located on the periphery of a current block to be coded with reference to the selected table for variable length coding so as to perform variable length coding for the number of coefficients.

    摘要翻译： 该方法包括以下单元：用于根据生成的系数检测对于每个块具有不同于0的值的系数的数目的系数数量检测单元（109），用于存储数量的系数数量存储单元（110） 系数检测单元，用于参照所选择的可变长度编码表，基于位于当前要编码的当前块的外围的编码块中的系数数，选择用于可变长度编码的表的系数编码单元（111） 以便对系数数进行可变长度编码。

    Variable length coding method and variable length decoding method
    59.
    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：US07411526B2

    公开(公告)日：2008-08-12

    申请号：US11495601

    申请日：2006-07-31

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

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

    IPC分类号： H03M7/40

    CPC分类号： G06T9/005 ,  G11B20/1426 ,  H03M5/145 ,  H03M7/40 ,  H03M7/46 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/69 ,  H04N19/89 ,  H04N19/93

    摘要： An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes a reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values.

    摘要翻译： 图像编码装置提供游程长度编码单元RLE 1，其使通过使用指示连续零系数的数量的游程值Run来对通过将图像信号的频率分量量化为可变长度编码处理而获得的量化系数，以及 水平值Lev，表示零系数之后的非零系数的值。 行程编码单元RLE 1包括用于重新排列级别值Lev的重新排序单元Lreodr; 可变长度编码器LVLC，用于通过使用根据量化参数QP的值选择的码表来对重新排序的电平值ROLev进行编码; 重排序单元Rreodr用于重新排序运行值从量化系数的高频分量运行到低频分量; 以及可变长度编码器RVLC，用于通过使用根据已经处理的运行值的数量选择的代码表来对重排序的运行值RORun进行编码。

    Motion vector coding method and motion vector decoding method
    60.
    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：US07394853B2

    公开(公告)日：2008-07-01

    申请号：US10473322

    申请日：2003-04-10

    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： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

    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.

    摘要翻译： 一种使用多个运动矢量对当前块进行编码时提高编码运动矢量效率的运动矢量编码方法和装置。 该装置包括对从运动矢量检测单元输入的运动矢量进行编码的运动矢量编码单元。 基于运动矢量与从先前编码的相邻块的运动矢量获得的预测矢量之间的差来对每个当前块的运动矢量进行编码。 通过以下处理之一生成预测矢量：（A）从相邻块的运动矢量中选择引用相同图像的运动矢量，以生成预测矢量; （B）各个相邻块的运动矢量以预定顺序排列，从有序运动矢量中选择相同次序秩的运动矢量，以产生预测矢量; 和（C）当前块的第二运动矢量的预测矢量应为第一运动矢量，如果第二运动矢量和第一运动矢量指的是不同的图像，则第一运动矢量根据时间距离 在图像之间产生预测矢量。