公开(公告)号：US10986362B2

公开(公告)日：2021-04-20

申请号：US16749482

申请日：2020-01-22

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/52 ,  H04N21/2743 ,  H04N19/503 ,  G06F1/03 ,  H04N19/51 ,  H04N19/61 ,  H04N19/43 ,  H04N19/577 ,  H04N19/513 ,  H04N19/587 ,  H04N19/625 ,  H04N19/105 ,  H04N19/124 ,  H04N19/30 ,  H04N19/172 ,  H04N19/176

Abstract: A motion vector derivation unit includes a comparison unit for comparing a parameter TR1 for a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit for switching selection between the maximum value of a pre-stored parameter TR and the parameter TR1 according to the comparison result by the comparison unit; a multiplier parameter table (for multipliers); and a multiplier parameter table (for divisors) for associating the parameter TR1 with a value approximate to the inverse value (1/TR1) of this parameter TR1.

公开(公告)号：US10911770B2

公开(公告)日：2021-02-02

申请号：US16597356

申请日：2019-10-09

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Takashi Hashimoto ,  Takahiro Nishi ,  Tadamasa Toma ,  Kiyofumi Abe ,  Ryuichi Kanoh

IPC: H04N19/176 ,  H04N19/105 ,  H04N19/513

Abstract: A decoder that decodes a current block using a motion vector includes: a processor; and memory. Using the memory, the processor: derives a first candidate vector from one or more candidate vectors of one or more neighboring blocks that neighbor the current block; determines, in a first reference picture for the current block, a first adjacent region that includes a position indicated by the first candidate vector; calculates evaluation values of a plurality of candidate regions included in the first adjacent region; and determines a first motion vector of the current block, based on a first candidate region having a smallest evaluation value among the evaluation values. The first adjacent region is included in a first motion estimation region determined based on the position indicated by the first candidate vector.

公开(公告)号：US10728543B2

公开(公告)日：2020-07-28

申请号：US16702254

申请日：2019-12-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kiyofumi Abe ,  Takahiro Nishi ,  Tadamasa Toma ,  Ryuichi Kanoh

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/14 ,  H04N19/573 ,  H04N19/176 ,  H04N19/52 ,  H04N19/139

Abstract: An encoder includes memory and circuitry. Using the memory, the circuitry: in a first operating mode, derives a first motion vector in a unit of a prediction block obtained by splitting an image included in a video, and performs, in the unit of the prediction block, a first motion compensation process that generates a prediction image by referring to a spatial gradient of luminance in an image generated by performing motion compensation using the first motion vector derived; and in a second operating mode, derives a second motion vector in a unit of a sub-block obtained by splitting the prediction block, and performs, in the unit of the sub-block, a second motion compensation process that generates a prediction image without referring to a spatial gradient of luminance in an image generated by performing motion compensation using the second motion vector derived.

公开(公告)号：US10264278B2

公开(公告)日：2019-04-16

申请号：US15358895

申请日：2016-11-22

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/52 ,  G06F1/03 ,  H04N21/2743 ,  H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/43 ,  H04N19/577 ,  H04N19/513 ,  H04N19/587 ,  H04N19/625 ,  H04N19/105 ,  H04N19/124 ,  H04N19/30 ,  H04N19/172 ,  H04N19/176

Abstract: A motion vector derivation unit includes a comparison unit for comparing a parameter TR1 for a reference vector with a predetermined value to determine whether it exceeds the predetermined value or not; a switching unit for switching selection between the maximum value of a pre-stored parameter TR and the parameter TR1 according to the comparison result by the comparison unit; a multiplier parameter table (for multipliers); and a multiplier parameter table (for divisors) for associating the parameter TR1 with a value approximate to the inverse value (1/TR1) of this parameter TR1.

公开(公告)号：US10097855B2

公开(公告)日：2018-10-09

申请号：US15640829

申请日：2017-07-03

Applicant: Panasonic Intellectual Property Corporation of America

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

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

Abstract: 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：US09948947B2

公开(公告)日：2018-04-17

申请号：US15640824

申请日：2017-07-03

Applicant: Panasonic Intellectual Property Corporation of America

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

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

CPC classification number: 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

Abstract: 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：US09723324B2

公开(公告)日：2017-08-01

申请号：US15338807

申请日：2016-10-31

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/513 ,  H04N19/52 ,  H04N19/159 ,  H04N19/30 ,  H04N19/573 ,  H04N19/176 ,  H04N19/172 ,  H04N19/184

CPC classification number: 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

Abstract: 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：US09516307B2

公开(公告)日：2016-12-06

申请号：US14297941

申请日：2014-06-06

Applicant: Panasonic Intellectual Property Corporation of America

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

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

CPC classification number: 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

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.

Abstract translation: 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。

公开(公告)号：US09451278B2

公开(公告)日：2016-09-20

申请号：US14840492

申请日：2015-08-31

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/105 ,  H04N19/52 ,  H04N19/56 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/61 ,  H04N19/593 ,  H04N19/517 ,  H04N19/577 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/537 ,  H04N19/533 ,  H04N19/172 ,  H04N19/184

CPC classification number: 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

Abstract: A motion vector coding unit executes processing including a neighboring block specification step of specifying a neighboring block which is located in the neighborhood of a current block; a judgment step of judging whether or not the neighboring block has been coded using a motion vector of another block; a prediction step 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 of coding the motion vector of the current block using the predictive motion vector.

公开(公告)号：US09264730B2

公开(公告)日：2016-02-16

申请号：US14602696

申请日：2015-01-22

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N11/02 ,  H04N19/513 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/103 ,  H04N19/107 ,  H04N19/127 ,  H04N19/136 ,  H04N19/137 ,  H04N19/16 ,  H04N19/423 ,  H04N19/583 ,  H04N19/573 ,  H04N19/58 ,  H04N19/577

CPC classification number: 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

Abstract: 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.