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：US12206895B2

公开(公告)日：2025-01-21

申请号：US18048397

申请日：2022-10-20

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182

Abstract: A video coding/decoding method and device, according to the present invention, may enable: deriving an intra-frame prediction mode of a current block; configuring a reference pixel for the intra-frame prediction of the current block; and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference pixel. The intra-frame prediction mode of the current block is derived on the basis of any one of MPM candidates or a predetermined default mode.

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：US11595664B2

公开(公告)日：2023-02-28

申请号：US17044765

申请日：2019-04-03

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn

IPC: 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：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：US11166039B2

公开(公告)日：2021-11-02

申请号：US16962730

申请日：2019-01-15

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/44 ,  H04N19/136 ,  H04N19/184 ,  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：US20210329237A1

公开(公告)日：2021-10-21

申请号：US17363777

申请日：2021-06-30

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Ho Chan RYU ,  Yong Jo Ahn

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/66 ,  H04N19/46

Abstract: The present invention relates to a block partitioning structure in video coding technology, and a video encoding and decoding method and apparatus using the same, wherein the video encoding and decoding method includes the steps of acquiring quad-partitioning information of a block; acquiring bi-partitioning information of the block when the acquired quad-partitioning information of the block does not indicate four partitions; acquiring partitioning direction information for bi-partitioning of the block when the acquired bi-partitioning information of the block indicates two partitions; acquiring information on whether to perform any other type of partitioning, when the acquired bi-partitioning information of the block does not indicate two partitions; and acquiring additional information required for the any other type of partitioning, when the acquired information on whether to perform any other type of partitioning indicates that the any other type of partitioning is performed.

公开(公告)号：US11153574B2

公开(公告)日：2021-10-19

申请号：US16968942

申请日：2019-02-21

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Yong Jo Ahn ,  Ho Chan Ryu

IPC: H04N19/00 ,  H04N19/159 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176

Abstract: The present invention provides an image encoding method and an image decoding method. The image decoding method of the present invention may comprise: obtaining intra-frame prediction information of a current block from a bitstream; inducing an intra-frame prediction mode of the current block on the basis of the intra-frame prediction information; determining a reference region for intra-frame prediction of the current block; and performing intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference region.