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11. 发明申请

US20090135917A1 PICTURE CODING METHOD AND PICTURE DECODING METHOD 有权
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20090135917A1
公开(公告)日：2009-05-28
申请号：US12361193
申请日：2009-01-28
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： H04N7/26
CPC分类号： H04N19/105 , G11B27/10 , G11B27/105 , H04N19/107 , H04N19/134 , H04N19/172 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/70 , H04N19/89 , H04N21/44016
摘要： In a picture coding method for generating a coded signal corresponding to each picture by coding a plurality of coded signals, a switching picture which is capable of switching a plurality of coded signals and subsequent pictures of the switching picture can refer to only a group of pictures of the same time in the coded signals. More specifically, the case where picture numbers of an adjacent picture of an S picture and the S picture are not continuous is not considered as an error.
摘要翻译：在通过对多个编码信号进行编码来生成与每个图像相对应的编码信号的图像编码方法中，能够切换多个编码信号的切换图像和切换图像的后续图像可以仅指一组图像同时在编码信号中。更具体地说，S图像和S图像的相邻图像的图像号不连续的情况不被认为是错误。

12. 发明申请

US20090034616A1 PICTURE CODING METHOD AND PICTURE DECODING METHOD 有权
标题翻译：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。

13. 发明申请

US20080260037A1 Variable length coding method and variable length decoding method 有权
公开(公告)号：US20080260037A1
公开(公告)日：2008-10-23
申请号：US11907772
申请日：2007-10-17
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
CPC分类号： H04N19/91 , H03M7/40 , H03M7/4006 , H04L47/29 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/134 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/93
摘要： A variable length coding method is provided for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and includes: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. Also, the coding may be non-arithmetic coding.

14. 发明授权

US07411526B2 Variable length coding method and variable length decoding method 有权
标题翻译：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。

15. 发明授权

US07394853B2 Motion vector coding method and motion vector decoding method 有权
标题翻译：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。

16. 发明授权

US07362807B2 Motion vector coding method and motion vector decoding method 有权
标题翻译：运动矢量编码方法和运动矢量解码方法
公开(公告)号：US07362807B2
公开(公告)日：2008-04-22
申请号：US10468203
申请日：2003-01-08
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 coding unit 117 executes processing including a neighboring block specification step (S100) of specifying a neighboring block which is located in the neighborhood of a current block; a judgment step (Steps S102, S104) of judging whether or not the neighboring block has been coded using a motion vector of another block; a prediction step (S106, S108) of 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; and a coding step (S110) of coding the motion vector of the current block using the predictive motion vector.
摘要翻译：运动矢量编码单元117执行包括指定位于当前块附近的相邻块的相邻块指定步骤（S100）的处理，判断步骤（步骤S102，S104），使用其他块的运动矢量来判断相邻块是否被编码; 使用从其他块的运动矢量计算的运动矢量作为相邻块的运动矢量导出当前块的预测运动矢量的预测步骤（S106，S108）以及使用预测运动矢量对当前块的运动矢量进行编码的编码步骤（S110）。

17. 发明申请

US20080069237A1 Motion vector coding and decoding methods 有权
标题翻译：运动矢量编码和解码方法
公开(公告)号：US20080069237A1
公开(公告)日：2008-03-20
申请号：US11980661
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： H04N7/32
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参照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。

18. 发明申请

US20080069231A1 Moving picture coding method and moving picture decoding method for performing inter picture prediction coding and inter picture prediction decoding using previously processed pictures as reference pictures 有权
标题翻译：运动图像编码方法和运动图像解码方法，用于使用先前处理的图像作为参考图像进行帧间预测编码和帧间预测解码
公开(公告)号：US20080069231A1
公开(公告)日：2008-03-20
申请号：US11980534
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： H04N7/26
CPC分类号： H04N19/577 , H04N19/103 , H04N19/105 , H04N19/107 , H04N19/127 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/51 , H04N19/573 , H04N19/58 , H04N19/61 , H04N19/70
摘要： A coding control unit (110) and a mode selection unit (109) are included. The coding control unit (110) determines the coding order for a plurality of consecutive B-pictures located between I-pictures and P-pictures so that the B-picture whose temporal distance from two previously coded pictures is farthest in display order is coded by priority, so as to reorder the B-pictures in coding order. When a current block is coded in direct mode, the mode selection unit 109 scales a forward motion vector of a block which is included in a backward reference picture of a current picture and co-located with the current block, so as to generate motion vectors of the current block, if the forward motion vector has been used for coding the co-located block.
摘要翻译：包括编码控制单元（110）和模式选择单元（109）。编码控制单元（110）确定位于I图像和P图像之间的多个连续B图像的编码顺序，使得其以两个先前编码图像的时间距离以显示顺序最远的B图像被编码为优先级，以便按照编码顺序重新排列B图像。当当前块以直接模式编码时，模式选择单元109对包含在当前画面的后向参考画面中并与当前块同位置的块的前向运动矢量进行缩放，以产生运动矢量如果前向运动矢量已被用于编码共位块。

19. 发明申请

US20080069212A1 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.

20. 发明申请

US20080063291A1 Moving picture coding method and moving picture decoding method Moving picture coding method and moving picture decoding method 有权
公开(公告)号：US20080063291A1
公开(公告)日：2008-03-13
申请号：US11976845
申请日：2007-10-29
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： G06K9/36
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.

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