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71.发明申请公开(公告)号：US20220256187A1
公开(公告)日：2022-08-11
申请号：US17723725
申请日：2022-04-19
Inventor： Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/513 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/537
Abstract: The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.
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72.发明申请公开(公告)号：US20220070450A1
公开(公告)日：2022-03-03
申请号：US17401424
申请日：2021-08-13
Inventor： 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: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/96 , H04N19/119
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, 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.
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公开(公告)号：US20220030227A1
公开(公告)日：2022-01-27
申请号：US17401578
申请日：2021-08-13
Inventor： Hyun Suk KO , Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/11 , H04N19/176 , H04N19/159 , H04N19/105 , H04N19/593 , H04N19/184 , H04N19/96
Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.
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公开(公告)号：US20210392372A1
公开(公告)日：2021-12-16
申请号：US17372594
申请日：2021-07-12
Inventor： Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/593 , H04N19/176 , H04N19/184
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
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75.发明申请公开(公告)号：US20210368172A1
公开(公告)日：2021-11-25
申请号：US16648470
申请日：2018-09-20
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/119 , H04N19/96 , H04N19/159 , H04N19/46 , H04N19/186 , H04N19/169 , H04N19/176
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20200288150A1
公开(公告)日：2020-09-10
申请号：US16758121
申请日：2018-10-26
Inventor： Dong San JUN , Ha Hyun LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/176 , H04N19/119 , H04N19/159 , H04N19/44
Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise dividing a coding unit into a plurality of sub-units according to a block division structure and performing decoding based on the sub-unit, wherein the block division structure is a block division structure in which division is performed so as to include at least one sub-unit having a predetermined block form other than square and rectangle forms.
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77.发明申请公开(公告)号：US20200029071A1
公开(公告)日：2020-01-23
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 , H04N19/176 , H04N19/119 , H04N19/96 , H04N19/70 , H04N19/186 , H04N19/159
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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78.发明申请公开(公告)号：US20190222837A1
公开(公告)日：2019-07-18
申请号：US16302462
申请日：2017-07-17
Inventor： 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: H04N19/107 , H04N19/126 , H04N19/146 , H04N19/176 , H04N19/30 , H04N19/44 , H04N19/52 , H04N19/91
CPC classification number: H04N19/107 , H04N19/124 , H04N19/126 , H04N19/146 , H04N19/176 , H04N19/30 , H04N19/44 , H04N19/513 , H04N19/52 , H04N19/91
Abstract: 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.
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79.发明申请公开(公告)号：US20190208199A1
公开(公告)日：2019-07-04
申请号：US16325253
申请日：2017-09-11
Inventor： 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: H04N19/11 , H04N19/96 , H04N19/105 , H04N19/176 , H04N19/119
CPC classification number: H04N19/11 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/426 , H04N19/91 , H04N19/96
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, 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.
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公开(公告)号：US20190141334A1
公开(公告)日：2019-05-09
申请号：US16099998
申请日：2017-05-23
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/139 , H04N19/124 , H04N19/117 , H04N19/51 , H04N19/91
CPC classification number: H04N19/139 , H04N19/117 , H04N19/124 , H04N19/51 , H04N19/52 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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