公开(公告)号：US12278983B2

公开(公告)日：2025-04-15

申请号：US18393911

申请日：2023-12-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gun Bang ,  Hui Yong Kim ,  Gwang Hoon Park ,  Woo Woen Gwun ,  Tae Hyun Kim ,  Won Jun Lee

IPC: H04N19/517 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

公开(公告)号：US12160565B2

公开(公告)日：2024-12-03

申请号：US17972894

申请日：2022-10-25

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Hui Yong Kim ,  Gwang Hoon Park ,  Jin Soo Choi ,  Tae Hyun Kim ,  Dae Young Lee ,  Young Su Heo

IPC: H04N19/105 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176

Abstract: A method and apparatus use a geometric modified image for video encoding/decoding. The encoding method may include: generating a geometric modified reference picture by geometrically modifying a reference picture; generating a prediction block of a current block within an encoding target picture by performing inter prediction by referencing the reference picture or the geometrically modified reference picture; and encoding inter-prediction information of the current block.

公开(公告)号：US11758128B2

公开(公告)日：2023-09-12

申请号：US17820539

申请日：2022-08-17

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Hui Yong Kim ,  Gwang Hoon Park ,  Jin Soo Choi ,  Tae Hyun Kim ,  Dae Young Lee ,  Young Su Heo

IPC: H04N19/105 ,  G06T5/00 ,  G06T5/50 ,  G06T7/246 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  G06T3/00 ,  H04N19/137 ,  H04N19/51 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/105 ,  G06T5/006 ,  G06T5/50 ,  G06T7/248 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/521 ,  G06T3/0006 ,  H04N19/174

Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.

公开(公告)号：US11412209B2

公开(公告)日：2022-08-09

申请号：US15776292

申请日：2016-11-18

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Hui Yong Kim ,  Gwang Hoon Park ,  Jin Soo Choi ,  Tae Hyun Kim ,  Dae Young Lee ,  Young Su Heo

IPC: H04N19/105 ,  G06T5/00 ,  G06T5/50 ,  H04N19/513 ,  H04N19/159 ,  G06T7/246 ,  H04N19/176 ,  H04N19/139 ,  H04N19/137 ,  H04N19/51 ,  H04N19/172 ,  H04N19/174 ,  G06T3/00

Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.

公开(公告)号：US11343490B2

公开(公告)日：2022-05-24

申请号：US17036162

申请日：2020-09-29

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi ,  Gwang Hoon Park ,  Tae Hyun Kim ,  Dae Young Lee

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/52

Abstract: An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample.

公开(公告)号：US12166974B2

公开(公告)日：2024-12-10

申请号：US17602690

申请日：2020-04-10

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Jin Ho Lee ,  Hui Yong Kim ,  Gwang Hoon Park ,  Tae Hyun Kim ,  Dae Young Lee ,  Woo Woen Gwun ,  Won Jun Lee

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184

Abstract: An image encoding/decoding method and apparatus is provided. The method of decoding an image includes decoding at least one of prediction mode information of a neighbor block of a current block and length information of the current block, deriving an intra prediction mode of the current block into a predetermined mode using the decoded information, and reconstructing the current block based on the intra prediction mode of the current block.

公开(公告)号：US12069247B2

公开(公告)日：2024-08-20

申请号：US18110702

申请日：2023-02-16

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Jin Ho Lee ,  Hui Yong Kim ,  Gwang Hoon Park ,  Tae Hyun Kim ,  Dae Young Lee

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/51

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/51

Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise deriving a candidate list for inter-prediction of a current block, deriving motion information of the current block by using the candidate list, deriving a cumulative coding information candidate by using the motion information of the current block, inserting the derived cumulative coding information candidate into a cumulative coding information candidate list and updating the candidate list by using the cumulative coding information candidate list, wherein the updated candidate list is used for inter-prediction of a block to be decoded after the current block.

公开(公告)号：US12041226B2

公开(公告)日：2024-07-16

申请号：US18358871

申请日：2023-07-25

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Hui Yong Kim ,  Gwang Hoon Park ,  Jin Soo Choi ,  Tae Hyun Kim ,  Dae Young Lee ,  Young Su Heo

IPC: H04N19/105 ,  G06T3/02 ,  G06T5/50 ,  G06T5/80 ,  G06T7/246 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/174

CPC classification number: H04N19/105 ,  G06T5/50 ,  G06T5/80 ,  G06T7/248 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/521 ,  G06T3/02 ,  H04N19/174

Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.

公开(公告)号：US11616946B2

公开(公告)日：2023-03-28

申请号：US17278212

申请日：2019-09-20

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Jin Ho Lee ,  Hui Yong Kim ,  Gwang Hoon Park ,  Tae Hyun Kim ,  Dae Young Lee

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/51

Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise deriving a candidate list for inter-prediction of a current block, deriving motion information of the current block by using the candidate list, deriving a cumulative coding information candidate by using the motion information of the current block, inserting the derived cumulative coding information candidate into a cumulative coding information candidate list and updating the candidate list by using the cumulative coding information candidate list, wherein the updated candidate list is used for inter-prediction of a block to be decoded after the current block.

公开(公告)号：US11102503B2

公开(公告)日：2021-08-24

申请号：US16736197

申请日：2020-01-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gun Bang ,  Hui Yong Kim ,  Gwang Hoon Park ,  Woo Woen Gwun ,  Tae Hyun Kim ,  Won Jun Lee

IPC: H04N19/517 ,  H04N19/176 ,  H04N19/184 ,  H04N19/182

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.