公开(公告)号：US11102509B2

公开(公告)日：2021-08-24

申请号：US16496581

申请日：2018-04-27

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Jin Ho Lee ,  Ha Hyun Lee ,  Dong San Jun ,  Hui Yong Kim

IPC分类号： H04N19/00 ,  H04N19/593 ,  H04N19/176 ,  H04N19/184

摘要： The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.

公开(公告)号：US10687053B2

公开(公告)日：2020-06-16

申请号：US15775420

申请日：2016-11-18

申请人： Electronics and Telecommunications Research Institute

发明人： Dong San Jun ,  Jung Won Kang ,  Sung Chang Lim ,  Hyun Suk Ko ,  Jin Ho Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/147 ,  H04N19/573

摘要： The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.

公开(公告)号：US12120292B2

公开(公告)日：2024-10-15

申请号：US17972894

申请日：2022-10-25

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

发明人： 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分类号： H04N19/105 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/105 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176

摘要： 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：US12095999B2

公开(公告)日：2024-09-17

申请号：US18346488

申请日：2023-07-03

申请人： Electronics and Telecommunications Research Institute

发明人： Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Dong San Jun ,  Hyun Suk Ko ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/51 ,  H04N19/52 ,  H04N19/91

CPC分类号： H04N19/139 ,  H04N19/117 ,  H04N19/124 ,  H04N19/51 ,  H04N19/52 ,  H04N19/91

摘要： The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.

公开(公告)号：US11805256B2

公开(公告)日：2023-10-31

申请号：US16634922

申请日：2018-07-31

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Sung Chang Lim ,  Hyun Suk Ko ,  Jung Won Kang ,  Jin Ho Lee ,  Ha Hyun Lee ,  Dong San Jun ,  Hui Yong Kim

IPC分类号： H04N19/129 ,  H04N19/176 ,  H04N19/186 ,  H04N19/64

CPC分类号： H04N19/129 ,  H04N19/176 ,  H04N19/186 ,  H04N19/64

摘要： The present invention relates to an image encoding and decoding method. An image decoding method for the same may include: obtaining transform coefficients of a current block from a bitstream; determining a scanning unit and a scanning order of the current block; and rearranging the transform coefficients of the current block by scanning the same base on the determined scanning unit and scanning order.

公开(公告)号：US11800116B2

公开(公告)日：2023-10-24

申请号：US17591830

申请日：2022-02-03

申请人： Electronics and Telecommunications Research Institute

发明人： Dong San Jun ,  Jin Ho Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Ha Hyun Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/593 ,  H04N19/13 ,  H04N19/126 ,  H04N19/176 ,  H04N19/50

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/126 ,  H04N19/13 ,  H04N19/176 ,  H04N19/50 ,  H04N19/593

摘要： An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra prediction mode for a current block, selecting at least one reconstructed sample line neighboring to the current block, constructing a reference sample using at least one reconstructed sample included in the at least one reconstructed sample line, and performing intra prediction for the current block based on the intra prediction mode and the reference sample.

公开(公告)号：US11516463B2

公开(公告)日：2022-11-29

申请号：US17160845

申请日：2021-01-28

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

发明人： 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分类号： H04N19/105 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176

摘要： 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：US11509907B2

公开(公告)日：2022-11-22

申请号：US16650885

申请日：2018-09-28

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Dong San Jun ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim

IPC分类号： H04N19/147 ,  H04N19/176

摘要： An image encoding/decoding method is disclosed. An method of decoding an image of the present invention may comprise deriving at least one merge candidate of a current block, generating an initial merge candidate list of the current block by using the derived at least one merge candidate and generating a reconfigured merge candidate list by using the initial merge candidate list.

公开(公告)号：US11128862B2

公开(公告)日：2021-09-21

申请号：US16325253

申请日：2017-09-11

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Seung Hyun Cho ,  Jung Won Kang ,  Sung Chang Lim ,  Hyun Suk Ko ,  Dong San Jun ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC分类号： H04N19/11 ,  H04N19/96 ,  H04N19/105 ,  H04N19/176 ,  H04N19/119

摘要： An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra-prediction mode for a current block, determining whether or not a left boundary or an upper boundary of the current block is a boundary of a predetermined image region, configuring a reference sample by using at least one reconstructed sample included in at least one reconstructed sample line adjacent to the current block based on the determination result, and performing intra-prediction for the current block based on the intra-prediction mode and the reference sample.

公开(公告)号：US11039130B2

公开(公告)日：2021-06-15

申请号：US16342225

申请日：2017-10-24

申请人： Electronics and Telecommunications Research Institute ,  Industry-University Cooperation Foundation Korea Aerospace University ,  Hanbat National University Industry-Academic Cooperation Foundation

发明人： Jin Ho Lee ,  Sung Chang Lim ,  Jung Won Kang ,  Hyun Suk Ko ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jae Gon Kim ,  Do Hyeon Park ,  Jin Soo Choi ,  Hae Chul Choi

IPC分类号： H04N19/11 ,  G06F17/18 ,  H04N19/176 ,  H04N19/159 ,  H04N19/91 ,  H04N19/117 ,  H04N19/132 ,  H04N19/119 ,  H04N19/105 ,  H04N19/80 ,  H04N19/513 ,  H04N19/174 ,  H04N19/13

摘要： An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.