公开(公告)号：US10834388B2

公开(公告)日：2020-11-10

申请号：US16708734

申请日：2019-12-10

Applicant: Godo Kaisha IP Bridge 1

Inventor： Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N19/105 ,  G11B27/10 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/107 ,  H04N19/89 ,  H04N19/423 ,  H04N19/573 ,  H04N21/44 ,  H04N19/134 ,  H04N19/176

Abstract: 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：US10063890B2

公开(公告)日：2018-08-28

申请号：US15293707

申请日：2016-10-14

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N7/12 ,  H04N19/91 ,  H03M7/40 ,  H04N19/13 ,  H04N19/134 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/93 ,  H04N19/44 ,  H04N19/122 ,  H04N19/124 ,  H04N19/182 ,  H04L12/801 ,  H04N19/176 ,  H04N19/172

CPC classification number: 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

Abstract: The present invention is a variable length coding method 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 comprises: 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：US09942547B2

公开(公告)日：2018-04-10

申请号：US15239170

申请日：2016-08-17

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

IPC: H04N19/103 ,  H04N19/105 ,  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

CPC classification number: 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

Abstract: According to a picture coding method, a coded picture is stored, as a reference picture, into a storage unit; commands indicating correspondence between reference pictures 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.

公开(公告)号：US09521415B2

公开(公告)日：2016-12-13

申请号：US14879582

申请日：2015-10-09

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N11/02 ,  H04N19/129 ,  H04N19/176 ,  H04N19/182

CPC classification number: 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

Abstract: A variable length coding method is comprised of: a coefficient value scanning step in which an RL sequence generation unit, a reordering unit, and a binarization unit 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 and a table storage unit 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 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.

公开(公告)号：US10349054B2

公开(公告)日：2019-07-09

申请号：US15703103

申请日：2017-09-13

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N19/13 ,  H04N19/129 ,  H03M7/40 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/60 ,  H04N19/136 ,  H04N19/18 ,  H04N19/167 ,  H04N19/182

Abstract: A variable length coding method is comprised of: a coefficient value scanning step in which an RL sequence generation unit, a reordering unit, and a binarization unit 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 and a table storage unit 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 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.

公开(公告)号：US10034025B2

公开(公告)日：2018-07-24

申请号：US15293663

申请日：2016-10-14

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04B1/66 ,  H04N19/91 ,  H03M7/40 ,  H04N19/13 ,  H04N19/134 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/93 ,  H04N19/44 ,  H04N19/122 ,  H04N19/124 ,  H04N19/182 ,  H04L12/801 ,  H04N19/176 ,  H04N19/172

CPC classification number: 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

Abstract: The present invention is a variable length coding method 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 comprises: 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：US10027990B2

公开(公告)日：2018-07-17

申请号：US15293687

申请日：2016-10-14

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04B1/66 ,  H04N19/91 ,  H03M7/40 ,  H04N19/13 ,  H04N19/134 ,  H04N19/61 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/93 ,  H04N19/44 ,  H04N19/122 ,  H04N19/124 ,  H04N19/182 ,  H04L12/801 ,  H04N19/176 ,  H04N19/172

Abstract: The present invention is a variable length coding method 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 comprises: 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：US09794567B2

公开(公告)日：2017-10-17

申请号：US15297809

申请日：2016-10-19

Applicant: Godo Kaisha IP Bridge 1

Inventor： Satoshi Kondo ,  Shinya Kadono ,  Makoto Hagai ,  Kiyofumi Abe

IPC: H04N11/02 ,  H04N19/129 ,  H04N19/176 ,  H04N19/182

CPC classification number: 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

Abstract: A variable length coding method is comprised of: a coefficient value scanning step in which an RL sequence generation unit, a reordering unit, and a binarization unit 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 and a table storage unit 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 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.

公开(公告)号：US09706224B2

公开(公告)日：2017-07-11

申请号：US15270443

申请日：2016-09-20

Applicant: Godo Kaisha IP Bridge 1

Inventor： Makoto Hagai ,  Shinya Kadono ,  Satoshi Kondo ,  Kiyofumi Abe

IPC: H04N7/12 ,  H04N19/573 ,  H04N19/00 ,  H04N19/105 ,  H04N19/50 ,  H04N19/176 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/107 ,  H04N19/109 ,  H04N19/91 ,  H04N19/146 ,  H04N19/58 ,  H04N19/577 ,  H04N19/17 ,  H04N19/503 ,  H04N19/159 ,  H04N19/15 ,  H04N19/174 ,  H04N19/182

CPC classification number: 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

Abstract: 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：US09473775B2

公开(公告)日：2016-10-18

申请号：US14746116

申请日：2015-06-22

Applicant: Godo Kaisha IP Bridge 1

Inventor： Makoto Hagai ,  Shinya Kadono ,  Satoshi Kondo ,  Kiyofumi Abe

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/00 ,  H04N19/50 ,  H04N19/176 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/107 ,  H04N19/109 ,  H04N19/91 ,  H04N19/146 ,  H04N19/573 ,  H04N19/58 ,  H04N19/577 ,  H04N19/17 ,  H04N19/503 ,  H04N19/159

CPC classification number: 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

Abstract: 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.

Abstract translation: 运动图像编码装置包括：运动估计单元，用于通过将两个参考图像之一固定为由输入的默认参考图像编号DefRefNo指示的参考图像和用于执行变量的可变长度编码单元（107）来执行运动估计; 对编码残差数据ERes，预测类型PredType，参考图像编号RefNo2和运动矢量MV1，MV2进行长度编码，并将其作为编码运动图像数据Str输出。