公开(公告)号：US12238283B2

公开(公告)日：2025-02-25

申请号：US18157920

申请日：2023-01-23

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Ho Chan Ryu ,  Yong Jo Ahn

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

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：US12047594B2

公开(公告)日：2024-07-23

申请号：US18472915

申请日：2023-09-22

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/60 ,  H04N19/136 ,  H04N19/184 ,  H04N19/44

CPC classification number: H04N19/44 ,  H04N19/136 ,  H04N19/184 ,  H04N19/45 ,  H04N19/60

Abstract: The present invention relates to a method and a device for decoding an image, which improve encoding and decoding efficiency by performing various forms of transform and inverse transform during transform and inverse transform processes of a video coding technique.

公开(公告)号：US20230262258A1

公开(公告)日：2023-08-17

申请号：US18304084

申请日：2023-04-20

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/577 ,  H04N19/593

CPC classification number: H04N19/577 ,  H04N19/593 ,  H04N19/124

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：US11159825B2

公开(公告)日：2021-10-26

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 ,  H04N19/176 ,  H04N19/119 ,  H04N19/169 ,  H04N19/96 ,  H04N19/88 ,  H04N19/46 ,  H04N19/44 ,  H04N19/134

Abstract: A 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. Also disclosed is a block partitioning structure used for encoding and decoding video.

公开(公告)号：US10778987B2

公开(公告)日：2020-09-15

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 ,  H04N19/105 ,  H04N19/593 ,  H04N19/129 ,  H04N19/82 ,  H04N19/91 ,  H04N19/523 ,  H04N19/157 ,  H04N19/18 ,  H04N19/513 ,  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：US12238281B2

公开(公告)日：2025-02-25

申请号：US18351775

申请日：2023-07-13

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Dong Gyu Sim ,  Ho Chan Ryu ,  Yong Jo Ahn

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/615 ,  H04N19/635 ,  H04N19/82 ,  H04N19/91

Abstract: A device for encoding/decoding the image according to the present invention includes an intra prediction module configured to: determine an intra prediction mode of a current block; determine a scanning order of multiple sub blocks in the current block on the basis of the determined intra prediction mode; and perform intra prediction of the current block on the basis of the determined scanning order.

公开(公告)号：US12003781B2

公开(公告)日：2024-06-04

申请号：US18470976

申请日：2023-09-20

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Ho Chan Ryu ,  Yong Jo Ahn

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

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

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：US11991378B2

公开(公告)日：2024-05-21

申请号：US17491955

申请日：2021-10-01

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/60 ,  H04N19/136 ,  H04N19/184 ,  H04N19/44

CPC classification number: H04N19/44 ,  H04N19/136 ,  H04N19/184 ,  H04N19/45 ,  H04N19/60

Abstract: The present invention relates to a method and a device for decoding an image, which improve encoding and decoding efficiency by performing various forms of transform and inverse transform during transform and inverse transform processes of a video coding technique.

公开(公告)号：US11589045B2

公开(公告)日：2023-02-21

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：US20220303552A1

公开(公告)日：2022-09-22

申请号：US17836236

申请日：2022-06-09

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 ,  H04N19/105 ,  H04N19/82 ,  H04N19/593 ,  H04N19/91 ,  H04N19/523 ,  H04N19/157 ,  H04N19/18 ,  H04N19/513 ,  H04N19/129 ,  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.