公开(公告)号：US20210306661A1

公开(公告)日：2021-09-30

申请号：US17345118

申请日：2021-06-11

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN ,  Ho Chan RYU

IPC: H04N19/577 ,  H04N19/593

Abstract: The present invention relates to block merging according to block split among video coding techniques, and a method and an apparatus for coding and decoding a video, in which in generating and modifying a block merging list, spatial merging candidate blocks of the block merging list are changed according to a split type and order of a current coding unit.

公开(公告)号：US20210185337A1

公开(公告)日：2021-06-17

申请号：US17256295

申请日：2019-07-01

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN

IPC: H04N19/44 ,  H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: A video coding method and device, according to the present invention, determine whether motion compensation is performed by sub-block unit, determine a search area for motion compensation of a current block, calculate a plurality of SAD candidates with respect to the search area, derive delta motion information of the current block on the basis of the plurality of SAD candidates, and can compensate for motion information of the current block by using pre-generated motion information and the delta motion information of the current block.

公开(公告)号：US20210120246A1

公开(公告)日：2021-04-22

申请号：US17137640

申请日：2020-12-30

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Ho Chan RYU ,  Yong Jo AHN

IPC: H04N19/119 ,  H04N19/44 ,  H04N19/186 ,  H04N19/513 ,  H04N19/593 ,  H04N19/176 ,  H04N19/70 ,  H04N19/157

Abstract: The present invention relates to a block partitioning structure from among the video coding schemes and to a method and apparatus for encoding and decoding the block partitioning structure, the method comprising the steps of: acquiring block partitioning data; partitioning a block by means of the acquired block partitioning data; and encoding and decoding by means of the partitioned block. The encoding and decoding method and apparatus according to the present invention has the benefit of improving encoding efficiency with respect to the existing video compression schemes.

公开(公告)号：US20190238889A1

公开(公告)日：2019-08-01

申请号：US16378499

申请日：2019-04-08

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Ho Chan RYU ,  Yong Jo AHN

IPC: H04N19/70 ,  H04N19/88 ,  H04N19/119 ,  H04N19/176

CPC classification number: H04N19/70 ,  H04N19/119 ,  H04N19/134 ,  H04N19/169 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/88

Abstract: The present invention relates to a block partitioning structure from among the video coding schemes, and a method and apparatus for encoding and decoding the block partitioning structure. The video encoding and decoding method comprises the steps of: combining two or more encoding units of maximum size into a single encoding unit group; acquiring encoding data corresponding to the combined single encoding unit group; and decoding, according to a decoding order, the two or more encoding units of maximum size contained in the single encoding unit group.

公开(公告)号：US20190089961A1

公开(公告)日：2019-03-21

申请号：US16087787

申请日：2017-03-22

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN ,  Dong Gyu SIM ,  Ho Chan RYU ,  Seanae PARK ,  Byung Tae OH ,  Byung Cheol SONG

IPC: H04N19/159 ,  H04N19/129 ,  H04N19/513 ,  H04N19/105 ,  H04N19/13 ,  H04N19/176

Abstract: A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.

公开(公告)号：US20250047870A1

公开(公告)日：2025-02-06

申请号：US18921545

申请日：2024-10-21

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN ,  Dong Gyu SIM ,  Ho Chan RYU ,  Seanae PARK ,  Byung Tae OH ,  Byung Cheol Cheol SONG

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/513 ,  H04N19/523 ,  H04N19/593 ,  H04N19/82 ,  H04N19/91

Abstract: A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.

公开(公告)号：US20230308678A1

公开(公告)日：2023-09-28

申请号：US18190892

申请日：2023-03-27

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN

IPC: H04N19/52 ,  H04N19/126 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/126 ,  H04N19/159 ,  H04N19/176

Abstract: In a video encoding/decoding method and device according to the present invention, a merge candidate of a current block may be determined, a merge candidate list may be configured on the basis of the merge candidate, motion information of the current block may be derived from the merge candidate list, and the motion information may be used to perform inter prediction of the current block.

公开(公告)号：US20230283784A1

公开(公告)日：2023-09-07

申请号：US18098453

申请日：2023-01-18

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo AHN

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

Abstract: In an image encoding/decoding method and device according to the present invention, a candidate list for motion information prediction of a current block is generated, a control point vector of the current block is derived on the basis of the candidate list and a candidate index, a motion vector of the current block is derived on the basis of the control point vector of the current block, and inter-prediction with respect to the current block can be performed by means of the motion vector.

公开(公告)号：US20230254513A1

公开(公告)日：2023-08-10

申请号：US18302186

申请日：2023-04-18

Applicant: Intellectual discovery Co., Ltd.

Inventor： Ho Chan RYU ,  Yong Jo AHN

IPC: H04N19/70 ,  H04N19/176 ,  H04N19/119 ,  H04N19/88 ,  H04N19/46 ,  H04N19/44 ,  H04N19/134 ,  H04N19/169 ,  H04N19/96

CPC classification number: H04N19/70 ,  H04N19/44 ,  H04N19/46 ,  H04N19/88 ,  H04N19/96 ,  H04N19/119 ,  H04N19/134 ,  H04N19/169 ,  H04N19/176

Abstract: The present invention relates to a block partitioning structure from among the video coding schemes, and a method and apparatus for encoding and decoding the block partitioning structure. The video encoding and decoding method comprises the steps of: combining two or more encoding units of maximum size into a single encoding unit group; acquiring encoding data corresponding to the combined single encoding unit group; and decoding, according to a decoding order, the two or more encoding units of maximum size contained in the single encoding unit group.

公开(公告)号：US20220132141A1

公开(公告)日：2022-04-28

申请号：US17570727

申请日：2022-01-07

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Yong Jo AHN ,  Ho Chan RYU

IPC: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an intra prediction scheme among video coding techniques and, more particularly, relates to a video decoding method and apparatus for diving a block into a plurality of sub-blocks when intra prediction is performed and sequentially performing infra prediction on each of the sub-blocks. The decoding method performed by a video decoding apparatus includes determining whether to perform sub-block-based intra prediction on a current coding unit, dividing the current coding unit into a plurality of sub-blocks, performing intra prediction on each of the sub-blocks when a result of determination of whether to perform sub-block-based intra prediction has a value of “true”, and directly performing block-based intra prediction on the current coding unit without dividing the current coding unit when the result of the determination has a value of “false”.