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公开(公告)号：US12075075B2
公开(公告)日：2024-08-27
申请号：US17419188
申请日：2019-12-27
申请人： Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人： Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim , Byeung Woo Jeon , Jee Yoon Park
IPC分类号： H04N19/44 , H04N19/159 , H04N19/176 , H04N19/186
CPC分类号： H04N19/44 , H04N19/159 , H04N19/176 , H04N19/186
摘要： Disclosed herein is a method of decoding an image. The method includes acquiring intra chroma prediction information of a current block from a bitstream, deriving an intra chroma prediction mode of the current block based on the intra chroma prediction information, and performing intra prediction with respect to the current block based on the intra chroma prediction mode. The intra chroma prediction mode may be any one of a linear model (LM)) mode, a derived luma (DM) mode, a Planar mode, a Vertical mode, a Horizontal mode and a DC mode, and a first bit of the intra chroma prediction information may be used to determine whether the intra chroma prediction mode is an LM mode.
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公开(公告)号：US11496737B2
公开(公告)日：2022-11-08
申请号：US17282720
申请日：2019-10-04
申请人： Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人： Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim , Byeung Woo Jeon , Jee Yoon Park
IPC分类号： H04N19/12 , H04N19/176 , H04N19/46 , H04N19/61
摘要： The present specification discloses a method of decoding an image. The method of decoding an image according to the method includes: obtaining transform skip information of a current block from a bitstream; obtaining multiple transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multiple transform selection information, wherein the multiple transform selection information is used to set each of a horizontal transform type and a vertical transform type.
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公开(公告)号：US11856197B2
公开(公告)日：2023-12-26
申请号：US17957862
申请日：2022-09-30
申请人： Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人： Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim , Byeung Woo Jeon , Jee Yoon Park
IPC分类号： H04N19/12 , H04N19/176 , H04N19/46 , H04N19/61
CPC分类号： H04N19/12 , H04N19/176 , H04N19/46 , H04N19/619
摘要： The present specification discloses a method of decoding an image. The method of decoding an image according to the method includes: obtaining transform skip information of a current block from a bitstream; obtaining multiple transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multiple transform selection information, wherein the multiple transform selection information is used to set each of a horizontal transform type and a vertical transform type.
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4.发明授权公开(公告)号：US11503316B2
公开(公告)日：2022-11-15
申请号：US17096952
申请日：2020-11-13
发明人： Seung Hyun Cho , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Mes Lee , Ha Hyun Lee , Dong San Jun , Hui Yong Kim , Byeung Woo Jeon , Nam Uk Kim , Seung Su Jeon , Jin Soo Choi
IPC分类号： H04N19/44 , H04N19/159 , H04N19/176
摘要： The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter(s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter(s); and performing intra prediction by using the generated function.
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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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8.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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9.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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