公开(公告)号：US09054734B2

公开(公告)日：2015-06-09

申请号：US11907771

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： H04B1/66 ,  H03M7/40 ,  H04N19/13 ,  H04N19/134 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/93 ,  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.

公开(公告)号：US09031133B2

公开(公告)日：2015-05-12

申请号：US11907775

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： H04B1/66 ,  H03M7/40 ,  H04N19/13 ,  H04N19/134 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/93 ,  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.

公开(公告)号：US08831100B2

公开(公告)日：2014-09-09

申请号：US12578816

申请日：2009-10-14

申请人： Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

发明人： Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

IPC分类号： H04N7/12

CPC分类号： H04N19/58 ,  H04N19/105 ,  H04N19/107 ,  H04N19/134 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/503 ,  H04N19/523 ,  H04N19/573 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61

摘要： A moving picture coding apparatus 1 includes a counter unit 102 which counts the number of pictures following an intra coded picture; and a motion estimation unit 101 which compares respectively only reference pictures which are the intra coded picture or the following pictures, selected from among a reference picture Ref1, a reference picture Ref2 and a reference picture Ref3 stored in memories 408˜410, with a picture signal Vin, and determines the reference picture whose inter picture differential value is smallest.

摘要翻译： 运动图像编码装置1包括对帧内编码图像后的图像数进行计数的计数器单元102; 以及运动估计单元101，其仅将存储在存储器408〜410中的参考图像Ref1，参考图像Ref2和参考图像Ref3中选择的作为帧内编码图像或后续图像的参考图像与图像进行比较 信号Vin，并确定帧间差分值最小的参考图像。

公开(公告)号：US08787448B2

公开(公告)日：2014-07-22

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： H04N7/12 ,  H04N11/04 ,  H04N7/50 ,  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.

公开(公告)号：US08605789B2

公开(公告)日：2013-12-10

申请号：US13606612

申请日：2012-09-07

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： H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/127 ,  H04N19/136 ,  H04N19/137 ,  H04N19/159 ,  H04N19/16 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/70

摘要： When a block (MB22) of which motion vector is referred to in the direct mode contains a plurality of motion vectors, 2 motion vectors MV23 and MV24, which are used for inter picture prediction of a current picture (P23) to be coded, are determined by scaling a value obtained from averaging the plurality of motion vectors or selecting one of the plurality of the motion vectors.

公开(公告)号：US08290048B2

公开(公告)日：2012-10-16

申请号：US12691195

申请日：2010-01-21

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），判断是否使用其他块的运动矢量编码了相邻块; 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）。

公开(公告)号：US20120213287A1

公开(公告)日：2012-08-23

申请号：US13461237

申请日：2012-05-01

申请人： Chong Soon LIM ,  Teck Wee Foo ,  Sheng Mei Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

发明人： Chong Soon LIM ,  Teck Wee Foo ,  Sheng Mei Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC分类号： H04N7/32

CPC分类号： G06T7/20 ,  G06T1/60 ,  G09G5/18 ,  G09G2360/12 ,  H04N19/126 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/52 ,  H04N19/55 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406 ,  H04N21/44004

摘要： A picture encoding method of the present invention is a picture encoding method of predictively encoding an input picture with reference to pictures stored in a picture buffer, decoding the encoded input picture, judging whether or not the decoded picture is a picture for reference and whether or not the decoded picture is a picture for output which needs to be stored until its display time, and storing, in the picture buffer, the picture for reference and the picture for output based on the determination result.

摘要翻译： 本发明的图像编码方法是参照存储在图像缓冲器中的图像对编码输入图像进行预测编码的图像编码方法，对经编码的输入图像进行解码，判断解码图像是否为参照图像， 解码图像不是直到其显示时间需要存储的用于输出的图像，并且基于确定结果将图像缓冲器存储在参考图像和图像中以用于输出。

公开(公告)号：US08213510B2

公开(公告)日：2012-07-03

申请号：US11980622

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.

公开(公告)号：US08184697B2

公开(公告)日：2012-05-22

申请号：US11976745

申请日：2007-10-26

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

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

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

CPC分类号： H04N19/573 ,  H04N19/00 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/146 ,  H04N19/15 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

摘要： A moving picture coding apparatus includes a motion estimation unit (101) for performing motion estimation by fixing the one of two reference pictures as a reference picture indicated by an inputted default reference picture number DefRefNo and a variable length coding unit (107) for performing variable length coding on coded residual data ERes, a prediction type PredType, a reference picture number RefNo2 and motion vectors MV1, MV2 on a block-by-block basis, and outputting them as coded moving picture data Str.

公开(公告)号：US08107533B2

公开(公告)日：2012-01-31

申请号：US11586596

申请日：2006-10-26

申请人： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai

发明人： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/00 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/127 ,  H04N19/136 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/16 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/43 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/51 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

摘要： According to the present invention, a moving picture coding apparatus (70) for performing inter-picture predictive coding for pictures constituting a moving picture is provided with a coding unit (103) for performing predictive error coding for image data; a decoding unit (105) for performing predictive error decoding for an output from the coding unit (103); a reference picture memory (117) for holding output data from the decoding unit (105); and a motion vector detection unit (108) for detecting motion vectors on the basis of the decoded image data stored in the memory. When coding a B picture as a target picture, information indicating whether or not the target picture should be used as a reference picture when coding another picture is added as header information. Therefore, in a decoding apparatus for decoding a bit stream Bs outputted from the moving picture coding apparatus (70), management of a memory for holding the reference picture can be facilitated on the basis of the header information.