公开(公告)号：US11924412B2

公开(公告)日：2024-03-05

申请号：US17746000

申请日：2022-05-17

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC分类号： H04N19/11 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176

CPC分类号： H04N19/11 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176

摘要： An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.

公开(公告)号：US11895329B2

公开(公告)日：2024-02-06

申请号：US17973835

申请日：2022-10-26

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： H04N19/583 ,  H04N19/51 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96 ,  H04N19/132 ,  H04N19/577 ,  H04N19/196 ,  H04N19/513 ,  H04N19/463 ,  H04N19/56

CPC分类号： H04N19/583 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/96 ,  H04N19/132 ,  H04N19/197 ,  H04N19/463 ,  H04N19/513 ,  H04N19/56 ,  H04N19/577

摘要： The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.

公开(公告)号：US11882272B2

公开(公告)日：2024-01-23

申请号：US17744845

申请日：2022-05-16

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： H04N19/107 ,  H04N19/176 ,  H04N19/117 ,  H04N19/147 ,  H04N19/119 ,  H04N19/11 ,  H04N19/105 ,  H04N19/30 ,  H04N19/91 ,  H04N19/146 ,  H04N19/44 ,  H04N19/126 ,  H04N19/52

CPC分类号： H04N19/107 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/126 ,  H04N19/146 ,  H04N19/147 ,  H04N19/176 ,  H04N19/30 ,  H04N19/44 ,  H04N19/52 ,  H04N19/91

摘要： The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.

公开(公告)号：US11825077B2

公开(公告)日：2023-11-21

申请号：US17724818

申请日：2022-04-20

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 ,  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分类号： H04N19/70 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/52

CPC分类号： H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/52

摘要： 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：US11805247B2

公开(公告)日：2023-10-31

申请号：US17401424

申请日：2021-08-13

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 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96 ,  H04N19/119

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

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：US11677940B2

公开(公告)日：2023-06-13

申请号：US16648470

申请日：2018-09-20

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC分类号： H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/169 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/46 ,  H04N19/96

摘要： The present invention relates to an image encoding/decoding method. The image decoding method includes splitting a coding tree unit (CTU) into at least one coding unit (CU) according to a block splitting structure and performing CU-based decoding, in which the block partition structure is configured such that at least one of binary tree splitting and ternary tree splitting is performed after quadtree splitting is performed.

公开(公告)号：US10958903B2

公开(公告)日：2021-03-23

申请号：US16336243

申请日：2017-09-26

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： H04N19/176 ,  H04N19/593 ,  H04N19/11

摘要： An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.

公开(公告)号：US10477247B2

公开(公告)日：2019-11-12

申请号：US15775465

申请日：2016-11-18

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Jin Ho Lee ,  Dong San Jun ,  Hui Yong Kim ,  Dong Gyu Sim ,  Seoung Jun Oh ,  Jin Soo Choi ,  Seoung Hwi Kim ,  Sea Nae Park ,  Yong Jo Ahn ,  Dong Kyu Lee

IPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/176 ,  H04N19/30 ,  H04N19/182 ,  H04N19/44 ,  H04N19/186 ,  H04N19/70 ,  H04N19/196 ,  H04N19/86 ,  H04N19/51 ,  H04N19/593

摘要： The present invention provides a method and apparatus for encoding/decoding an image and for adjusting a reconstructed pixel by scaling an offset of an in-loop filter having a scaled offset value. The method includes: obtaining information of a scale default value of a current block from a bitstream; obtaining offset parameter merge information of the current block from the bitstream; obtaining the offset parameter of the current block on the basis of the offset parameter merge information; determining whether a scale residual value of the current block is obtained from the bitstream on the basis of the offset parameter merge information; obtaining a scale value on the basis of the scale default value and the scale residual value; scaling an offset on the basis of the offset parameter and the scale value; and adjusting a pixel value of the current block on the basis of the scaled offset.

公开(公告)号：US11936853B2

公开(公告)日：2024-03-19

申请号：US18094456

申请日：2023-01-09

申请人： Electronics and Telecommunications Research Institute

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

IPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/96

CPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/96

摘要： The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.

公开(公告)号：US11863798B2

公开(公告)日：2024-01-02

申请号：US16308208

申请日：2017-07-10

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

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

IPC分类号： H04N19/91 ,  H04N19/149 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/182 ,  H04N19/146

CPC分类号： H04N19/91 ,  H04N19/146 ,  H04N19/149 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44

摘要： The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.