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公开(公告)号：US20240333955A1
公开(公告)日：2024-10-03
申请号：US18743832
申请日：2024-06-14
发明人： Yong Jo AHN , Ho Chan RYU
IPC分类号： H04N19/44 , H04N19/136 , H04N19/184 , H04N19/60
CPC分类号： H04N19/44 , H04N19/136 , H04N19/184 , H04N19/45 , H04N19/60
摘要： The present invention relates to a method and a device for decoding an image, which improve encoding and decoding efficiency by performing various forms of transform and inverse transform during transform and inverse transform processes of a video coding technique.
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2.发明公开公开(公告)号：US20240015306A1
公开(公告)日：2024-01-11
申请号：US18469838
申请日：2023-09-19
发明人： Yong Jo AHN , Ho Chan RYU
IPC分类号： H04N19/159 , H04N19/105 , H04N19/139 , H04N19/176
CPC分类号： H04N19/159 , H04N19/105 , H04N19/139 , H04N19/176
摘要： The present invention provides an image encoding method and an image decoding method. The image decoding method of the present invention may comprise: obtaining intra-frame prediction information of a current block from a bitstream; inducing an intra-frame prediction mode of the current block on the basis of the intra-frame prediction information; determining a reference region for intra-frame prediction of the current block; and performing intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference region.
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3.发明公开公开(公告)号：US20230164317A1
公开(公告)日：2023-05-25
申请号：US18157920
申请日：2023-01-23
发明人： Ho Chan RYU , Yong Jo AHN
IPC分类号： H04N19/119 , H04N19/44 , H04N19/186 , H04N19/513 , H04N19/593 , H04N19/176 , H04N19/70 , H04N19/157
CPC分类号： H04N19/119 , H04N19/44 , H04N19/186 , H04N19/513 , H04N19/593 , H04N19/176 , H04N19/70 , H04N19/157
摘要： The present invention relates to a block partitioning structure from among the video coding schemes and to a method and apparatus for encoding and decoding the block partitioning structure, the method comprising the steps of: acquiring block partitioning data; partitioning a block by means of the acquired block partitioning data; and encoding and decoding by means of the partitioned block. The encoding and decoding method and apparatus according to the present invention has the benefit of improving encoding efficiency with respect to the existing video compression schemes.
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公开(公告)号：US20220303553A1
公开(公告)日：2022-09-22
申请号：US17836347
申请日：2022-06-09
发明人： Yong Jo AHN , Dong Gyu SIM , Ho Chan RYU , Seanae PARK , Byung Tae OH , Byung Cheol SONG
IPC分类号： H04N19/159 , H04N19/105 , H04N19/82 , H04N19/593 , H04N19/91 , H04N19/523 , H04N19/157 , H04N19/18 , H04N19/513 , H04N19/129 , H04N19/13 , H04N19/176
摘要： A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.
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公开(公告)号：US20210329237A1
公开(公告)日：2021-10-21
申请号：US17363777
申请日：2021-06-30
发明人： Ho Chan RYU , Yong Jo Ahn
IPC分类号： H04N19/119 , H04N19/176 , H04N19/66 , H04N19/46
摘要： The present invention relates to a block partitioning structure in video coding technology, and a video encoding and decoding method and apparatus using the same, wherein the video encoding and decoding method includes the steps of acquiring quad-partitioning information of a block; acquiring bi-partitioning information of the block when the acquired quad-partitioning information of the block does not indicate four partitions; acquiring partitioning direction information for bi-partitioning of the block when the acquired bi-partitioning information of the block indicates two partitions; acquiring information on whether to perform any other type of partitioning, when the acquired bi-partitioning information of the block does not indicate two partitions; and acquiring additional information required for the any other type of partitioning, when the acquired information on whether to perform any other type of partitioning indicates that the any other type of partitioning is performed.
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6.发明申请公开(公告)号：US20200275122A1
公开(公告)日：2020-08-27
申请号：US16647665
申请日：2018-09-18
发明人： Yong Jo AHN , Ho Chan RYU
IPC分类号： H04N19/577 , H04N19/593
摘要： The present invention relates to block merging according to block split among video coding techniques, and a method and an apparatus for coding and decoding a video, in which in generating and modifying a block merging list, spatial merging candidate blocks of the block merging list are changed according to a split type and order of a current coding unit.
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公开(公告)号：US20190253710A1
公开(公告)日：2019-08-15
申请号：US16395109
申请日：2019-04-25
发明人： Ho Chan RYU , Yong Jo AHN
IPC分类号： H04N19/119 , H04N19/66 , H04N19/176
CPC分类号： H04N19/119 , H04N19/176 , H04N19/46 , H04N19/66
摘要： The present invention relates to a block partitioning structure in video coding technology, and a video encoding and decoding method and apparatus using the same, wherein the video encoding and decoding method includes the steps of: acquiring quad-partitioning information of a block; acquiring bi-partitioning information of the block when the acquired quad-partitioning information of the block does not indicate four partitions; acquiring partitioning direction information for bi-partitioning of the block when the acquired bi-partitioning information of the block indicates two partitions; acquiring information on whether to perform any other type of partitioning, when the acquired bi-partitioning information of the block does not indicate two partitions; and acquiring additional information required for the any other type of partitioning, when the acquired information on whether to perform any other type of partitioning indicates that the any other type of partitioning is performed.
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公开(公告)号：US20190158827A1
公开(公告)日：2019-05-23
申请号：US16096704
申请日：2017-04-19
发明人： Dong Gyu SIM , Ho Chan RYU , Yong Jo AHN
IPC分类号： H04N19/11 , H04N19/513 , H04N19/82 , H04N19/176
摘要： A device for encoding/decoding the image according to the present invention includes an intra prediction module configured to: determine an intra prediction mode of a current block; determine a scanning order of multiple sub blocks in the current block on the basis of the determined intra prediction mode; and perform intra prediction of the current block on the basis of the determined scanning order.
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公开(公告)号：US20230353757A1
公开(公告)日：2023-11-02
申请号：US18350040
申请日：2023-07-11
发明人： Yong Jo AHN , Dong Gyu SIM , Ho Chan RYU , Seanae PARK , Byung Tae OH , Byung Cheol SONG
IPC分类号： H04N19/159 , H04N19/105 , H04N19/593 , H04N19/91 , H04N19/523 , H04N19/513 , H04N19/13 , H04N19/82 , H04N19/157 , H04N19/18 , H04N19/129 , H04N19/176
CPC分类号： H04N19/159 , H04N19/105 , H04N19/129 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/513 , H04N19/523 , H04N19/593 , H04N19/82 , H04N19/91
摘要： A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.
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公开(公告)号：US20210051334A1
公开(公告)日：2021-02-18
申请号：US16968942
申请日：2019-02-21
发明人： Yong Jo AHN , Ho Chan RYU
IPC分类号： H04N19/159 , H04N19/105 , H04N19/176 , H04N19/139
摘要： The present invention provides an image encoding method and an image decoding method. The image decoding method of the present invention may comprise: obtaining intra-frame prediction information of a current block from a bitstream; inducing an intra-frame prediction mode of the current block on the basis of the intra-frame prediction information; determining a reference region for intra-frame prediction of the current block; and performing intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the reference region.
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