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公开(公告)号：US12289449B2
公开(公告)日：2025-04-29
申请号：US18359384
申请日：2023-07-26
Applicant: Electronics and Telecommunications Research Institute , Industry Academy Cooperation Foundation of Sejong University
Inventor： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Jin Ho Lee , Ha Hyun Lee , Dong San Jun , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi , Yung Lyul Lee , Nam Uk Kim , Jun Woo Choi
IPC: H04N19/122 , H04N19/103 , H04N19/107 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/90
Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
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公开(公告)号：US12225189B2
公开(公告)日：2025-02-11
申请号：US18411515
申请日：2024-01-12
Inventor： 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: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
Abstract: 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.
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公开(公告)号：US12192483B2
公开(公告)日：2025-01-07
申请号：US18463848
申请日：2023-09-08
Inventor： 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: H04N19/159 , H04N19/105 , H04N19/126 , H04N19/13 , H04N19/176 , H04N19/50 , H04N19/593
Abstract: 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.
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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.
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公开(公告)号：US11936853B2
公开(公告)日：2024-03-19
申请号：US18094456
申请日：2023-01-09
Inventor： 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: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
CPC classification number: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11863798B2
公开(公告)日：2024-01-02
申请号：US16308208
申请日：2017-07-10
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor： 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: H04N19/91 , H04N19/149 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/182 , H04N19/146
CPC classification number: H04N19/91 , H04N19/146 , H04N19/149 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/44
Abstract: 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.
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公开(公告)号：US11800113B2
公开(公告)日：2023-10-24
申请号：US16301409
申请日：2017-07-11
Inventor： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Jin Ho Lee , Ha Hyun Lee , Dong San Jun , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/70 , H04N19/139 , H04N19/137 , H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/51 , H04N19/44 , H04N19/91 , H04N19/146
CPC classification number: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/91
Abstract: The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.
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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.
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公开(公告)号：US11575885B2
公开(公告)日：2023-02-07
申请号：US16338011
申请日：2017-09-29
Inventor： 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: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
Abstract: 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.
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20.发明授权公开(公告)号：US11477442B2
公开(公告)日：2022-10-18
申请号：US16336264
申请日：2017-09-26
Inventor： Dong San Jun , Ha Hyun Lee , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Lee , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/109 , H04N19/176 , H04N19/91 , H04N19/513 , H04N19/182 , H04N19/132 , H04N19/172 , H04N19/117 , H04N19/174 , H04N19/86 , H04N19/119
Abstract: An image encoding method and an image decoding method are provided. The image decoding method includes deriving a temporal merge candidate from a co-located block of a current block, generating a merge candidate list of the current block based on the derived temporal merge candidate, and generating a prediction block of the current block based on the generated merge candidate list. The deriving a temporal merge candidate includes scaling a motion vector derived from the co-located block based on a POC difference value between the current block and a reference picture of the current block and a POC difference value between the co-located block and a reference picture of the co-located block, and modifying the scaled motion vector based on motion vector scaling information between a neighboring block of the current block and a co-located block of the neighboring block.
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