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：US10097824B2

公开(公告)日：2018-10-09

申请号：US15851970

申请日：2017-12-22

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/103 ,  H04N19/109 ,  H04N19/513 ,  H04N19/577 ,  H04N19/573 ,  H04N19/172 ,  H04N19/61 ,  H04N19/176 ,  H04N19/16

Abstract: A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.

公开(公告)号：US10091522B2

公开(公告)日：2018-10-02

申请号：US15617159

申请日：2017-06-08

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N19/513 ,  H04N19/112 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/577 ,  H04N19/119 ,  H04N19/105 ,  H04N19/573 ,  H04N19/172 ,  H04N19/184

Abstract: A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.

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：US09699455B2

公开(公告)日：2017-07-04

申请号：US15213617

申请日：2016-07-19

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N19/103 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/109 ,  H04N19/16 ,  H04N19/577 ,  H04N19/172 ,  H04N19/573

CPC classification number: H04N19/103 ,  H04N19/109 ,  H04N19/16 ,  H04N19/172 ,  H04N19/176 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61

Abstract: A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.

公开(公告)号：US09686552B2

公开(公告)日：2017-06-20

申请号：US14805549

申请日：2015-07-22

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/61 ,  H04N19/112 ,  H04N19/573 ,  H04N19/577

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/112 ,  H04N19/119 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

Abstract: A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.

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：US10412405B2

公开(公告)日：2019-09-10

申请号：US16117087

申请日：2018-08-30

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N19/513 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/61 ,  H04N19/112 ,  H04N19/573 ,  H04N19/577 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184

Abstract: A moving picture coding method for coding a picture with switching between frame coding and field coding adaptively on a block-by-block basis includes: determining the maximum number of reference indices for field coding for specifying fields which are to be referred to at the time of field coding, using the maximum number of reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding; and assigning to fields the reference indices for field coding for specifying fields which are to be referred to at the time of field coding, within a range of the determined maximum number thereof, using the reference indices for frame coding for specifying frames which are to be referred to at the time of frame coding.

公开(公告)号：US10375388B2

公开(公告)日：2019-08-06

申请号：US16118973

申请日：2018-08-31

Applicant: Godo Kaisha IP Bridge 1

Inventor： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo

IPC: H04N7/12 ,  H04N11/02 ,  H04N19/103 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61 ,  H04N19/109 ,  H04N19/16 ,  H04N19/577 ,  H04N19/172 ,  H04N19/573

Abstract: A moving picture coding apparatus includes a motion compensation coding unit for deciding a coding mode for coding a current block to be coded and for generating predictive image data based on the coding mode, and includes a direct mode enable/disable judgment unit for judging whether or not scaling processing can be performed when the coding mode decided by the motion compensation coding unit is a temporal direct mode. When it is judged that the scaling processing cannot be performed, the motion compensation coding unit performs motion compensation either by using another coding mode or without the scaling processing.