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11.发明公开公开(公告)号：US20230353729A1
公开(公告)日：2023-11-02
申请号：US18346704
申请日：2023-07-03
发明人： Seungsoo JEONG , Gahyun Ryu , Minsoo Park , Minwoo Park , Kiho Choi , Narae Choi , Woongil Choi , Anish Tamse , Yinji Piao
IPC分类号： H04N19/105 , H04N19/159 , H04N19/176 , H04N19/177 , H04N19/91
CPC分类号： H04N19/105 , H04N19/159 , H04N19/176 , H04N19/177 , H04N19/91
摘要： Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.
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公开(公告)号：US11800103B2
公开(公告)日：2023-10-24
申请号：US17689402
申请日：2022-03-08
发明人： Minsoo Park , Minwoo Park , Kiho Choi , Seungsoo Jeong
IPC分类号： H04N19/82 , H04N19/119 , H04N19/117 , H04N19/176
CPC分类号： H04N19/119 , H04N19/117 , H04N19/176 , H04N19/82
摘要： An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.
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公开(公告)号：US20230059592A1
公开(公告)日：2023-02-23
申请号：US17981611
申请日：2022-11-07
发明人： Anish TAMSE , Minwoo Park , Minsoo Park
IPC分类号： H04N19/52 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/40
摘要： Provided are a video decoding method and apparatus for, in a video encoding and decoding procedure, when a merge candidate list of a current block is configured, determining whether the number of merge candidates included in the merge candidate list is greater than 1 and is smaller than a predetermined maximum merge candidate number, when the number of the merge candidates included in the merge candidate list is greater than 1 and is smaller than the predetermined maximum merge candidate number, determining an additional merge candidate by using a first merge candidate and a second merge candidate of the merge candidate list of the current block, configuring the merge candidate list by adding the determined additional merge candidate to the merge candidate list, and performing prediction on the current block, based on the merge candidate list.
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公开(公告)号：US11509906B2
公开(公告)日：2022-11-22
申请号：US17271087
申请日：2019-08-26
发明人： Anish Tamse , Woongil Choi , Minwoo Park , Seungsoo Jeong , Yinji Piao , Gahyun Ryu , Kiho Choi , Narae Choi , Minsoo Park
IPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/513
摘要： Provided is an image decoding method including determining a current chroma block having a rectangular shape corresponding to a current luma block included in one of a plurality of luma blocks, determining a piece of motion information for the current chroma block and a chroma block adjacent to the current chroma block by using motion information of the current chroma block and the adjacent chroma block, and performing inter prediction on the current chroma block and the adjacent chroma block by using the piece of motion information for the current chroma block and the adjacent chroma block to generate prediction blocks of the current chroma block and the adjacent chroma block.
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公开(公告)号：US11412251B2
公开(公告)日：2022-08-09
申请号：US17228308
申请日：2021-04-12
发明人： Seungsoo Jeong , Minwoo Park , Yumi Sohn , Kiho Choi
IPC分类号： H04N19/53 , H04N19/109 , H04N19/176
摘要： Provided are a video encoding and decoding method and apparatus for obtaining, in a video encoding and decoding process, motion vector resolution information from a bit stream by using a high-level syntax which is a group of information that is applied to a predefined data unit group; determining a motion vector resolution of a current block included in the predefined data unit group based on the motion vector resolution information; determining a prediction motion vector of the current block to be a motion vector of a candidate block from among at least one candidate block, based on the motion vector resolution of the current block; and determining a motion vector of the current block by using the prediction motion vector of the current block.
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公开(公告)号：US11388435B2
公开(公告)日：2022-07-12
申请号：US17228269
申请日：2021-04-12
发明人： Seungsoo Jeong , Minwoo Park , Yumi Sohn , Kiho Choi
IPC分类号： H04N19/53 , H04N19/109 , H04N19/176
摘要： Provided are a video encoding and decoding method and apparatus for obtaining, in a video encoding and decoding process, motion vector resolution information from a bit stream by using a high-level syntax which is a group of information that is applied to a predefined data unit group; determining a motion vector resolution of a current block included in the predefined data unit group based on the motion vector resolution information; determining a prediction motion vector of the current block to be a motion vector of a candidate block from among at least one candidate block, based on the motion vector resolution of the current block; and determining a motion vector of the current block by using the prediction motion vector of the current block.
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公开(公告)号：US11350089B2
公开(公告)日：2022-05-31
申请号：US17071600
申请日：2020-10-15
发明人： Narae Choi , Minwoo Park , Chanyul Kim , Minsoo Park , Yumi Sohn , Seungsoo Jeong , Kiho Choi , Woongil Choi , Anish Tamse , Yinji Piao
IPC分类号： H04N11/02 , H04N19/11 , H04N19/176
摘要： Provided are a video decoding method and apparatus and a video encoding method and apparatus which determine whether to use a Most Probable Mode (MPM) list, based on encoding information of a current block, obtain, from a bitstream, intra prediction mode index information indicating one of candidate intra prediction modes included in the MPM list, and determine an intra prediction mode of the current block by using the obtained intra prediction mode index information.
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公开(公告)号：US11234016B2
公开(公告)日：2022-01-25
申请号：US16954639
申请日：2019-01-15
发明人： Anish Tamse , Minwoo Park , Seungsoo Jeong , Jinyoung Lee
IPC分类号： H04N19/52 , H04N19/122 , H04N19/176 , H04N19/186 , H04N19/59
摘要： A method and apparatus for, in a video encoding and decoding procedure, selecting a candidate motion vector of a current block from a motion vector candidate list of the current block, determining a motion vector of the current block by performing a motion search based on the candidate motion vector, performing motion compensation by using the determined motion vector of the current block, and applying local luminance compensation to the current block based on whether the local luminance compensation is to be applied to the current block, wherein a cost function used for performing the motion search is determined based on whether the local luminance compensation is to be applied to the current block.
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公开(公告)号：US20210152827A1
公开(公告)日：2021-05-20
申请号：US17157459
申请日：2021-01-25
发明人： Minsoo Park , Minwoo Park , Kiho Choi , Seungsoo Jeong
IPC分类号： H04N19/119 , H04N19/117 , H04N19/82 , H04N19/176
摘要： An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.
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公开(公告)号：US11006144B2
公开(公告)日：2021-05-11
申请号：US16934228
申请日：2020-07-21
发明人： Seungsoo Jeong , Minwoo Park , Yumi Sohn , Kiho Choi
IPC分类号： H04N19/53 , H04N19/109 , H04N19/176
摘要： Provided are a video encoding and decoding method and apparatus for obtaining, in a video encoding and decoding process, motion vector resolution information from a bit stream by using a high-level syntax which is a group of information that is applied to a predefined data unit group; determining a motion vector resolution of a current block included in the predefined data unit group based on the motion vector resolution information; determining a prediction motion vector of the current block to be a motion vector of a candidate block from among at least one candidate block, based on the motion vector resolution of the current block; and determining a motion vector of the current block by using the prediction motion vector of the current block.
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