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。

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.

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.

公开(公告)号：US20080063061A1

公开(公告)日：2008-03-13

申请号：US11980557

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

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.

公开(公告)号：US20080063060A1

公开(公告)日：2008-03-13

申请号：US11980556

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

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.

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.

公开(公告)号：US20080063055A1

公开(公告)日：2008-03-13

申请号：US11976551

申请日：2007-10-25

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： H04N7/32

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.

公开(公告)号：US20080056379A1

公开(公告)日：2008-03-06

申请号：US11976272

申请日：2007-10-23

申请人： Chong Lim ,  Teck Foo ,  Sheng Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

发明人： Chong Lim ,  Teck Foo ,  Sheng Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC分类号： H04B1/66

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：US20080056378A1

公开(公告)日：2008-03-06

申请号：US11976271

申请日：2007-10-23

申请人： Chong Lim ,  Teck Foo ,  Sheng Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

发明人： Chong Lim ,  Teck Foo ,  Sheng Shen ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC分类号： H04B1/66

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.

公开(公告)号：US07308149B2

公开(公告)日：2007-12-11

申请号：US11453085

申请日：2006-06-15

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 ,  H04B1/66 ,  H03M7/00

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.