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公开(公告)号：US12126815B2
公开(公告)日：2024-10-22
申请号：US18300282
申请日：2023-04-13
申请人： Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
发明人： Hui Yong Kim , Gwang Hoon Park , Kyung Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/159 , H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/52 , H04N19/61
CPC分类号： H04N19/159 , H04N19/105 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/52 , H04N19/61
摘要： An inter-prediction method according to the present invention comprises the steps of: deriving motion information of a current block; and generating a prediction block for the current block on the basis of the derived motion information. According to the present invention, computational complexity can be reduced and encoding efficiency can be improved.
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公开(公告)号：US12101470B2
公开(公告)日：2024-09-24
申请号：US18311990
申请日：2023-05-04
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 , H04N19/147 , H04N19/176 , H04N19/573
CPC分类号： H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , 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.
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公开(公告)号：US12069299B2
公开(公告)日：2024-08-20
申请号：US17437356
申请日：2020-03-06
发明人： Ha Hyun Lee , Jung Won Kang , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/593 , H04N19/105 , H04N19/139 , H04N19/169 , H04N19/176 , H04N19/52
CPC分类号： H04N19/593 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/1883 , H04N19/52
摘要： Disclosed herein is an image encoding/decoding method. The image decoding method includes a step of comparing block vector information included in a history-based candidate list with a block vector of a neighboring block used as an intra block copy (IBC) block vector candidate for IBC prediction of a current block, and a step of adding the block vector information included in the history-based candidate list to an IBC block vector candidate list based on the comparing. The step of comparing is performed only with respect to a candidate lastly included in the history-based candidate list.
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4.发明授权公开(公告)号：US12069258B2
公开(公告)日：2024-08-20
申请号：US17876620
申请日：2022-07-29
申请人： Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION OF KOREA AEROSPACE UNIVERSITY , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
发明人： Jin Ho Lee , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Ha Hyun Lee , Dong San Jun , Seung Hyun Cho , Hui Yong Kim , Hae Chul Choi , Aram Back , Jin Soo Choi , Jae Gon Kim
IPC分类号： H04N19/46 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/186
CPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/46
摘要： An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.
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5.发明授权公开(公告)号：US12069247B2
公开(公告)日：2024-08-20
申请号：US18110702
申请日：2023-02-16
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： 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分类号： H04N19/105 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/51
CPC分类号： H04N19/105 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/51
摘要： 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.
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公开(公告)号：US12041226B2
公开(公告)日：2024-07-16
申请号：US18358871
申请日：2023-07-25
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 , 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分类号： 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
摘要： 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：US12028545B2
公开(公告)日：2024-07-02
申请号：US17538797
申请日：2021-11-30
发明人： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Dong San Jun , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
CPC分类号： H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
摘要： The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
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公开(公告)号：US12010312B2
公开(公告)日：2024-06-11
申请号：US18160976
申请日：2023-01-27
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Hui Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Gwang Hoon Park , Kyung Yong Kim
IPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
CPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
摘要： A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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公开(公告)号：US11979555B2
公开(公告)日：2024-05-07
申请号：US17418514
申请日：2019-12-27
发明人： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC分类号： H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC分类号： H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
摘要： Disclosed herein is a method of decoding an image including deriving intra prediction mode of a current block using an intra prediction mode of a neighbor block adjacent to the current block, constructing a reference sample of the current block, and performing intra prediction with respect to the current block using the intra prediction mode of the current block and the reference sample. The deriving of the intra prediction mode of the current block includes constructing a most probable mode (MPM) list based on whether the intra prediction mode of the current block is a Planar mode.
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公开(公告)号：US11943436B2
公开(公告)日：2024-03-26
申请号：US17676698
申请日：2022-02-21
发明人： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Dong San Jun , Hyun Suk Ko , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/00 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/82
CPC分类号： H04N19/117 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/82
摘要： The present it relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise c coding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
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