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公开(公告)号：US12113964B2
公开(公告)日：2024-10-08
申请号：US18346697
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：US20240223800A1
公开(公告)日：2024-07-04
申请号：US18605285
申请日：2024-03-14
发明人： Narae CHOI , Minsoo Park , Minwoo Park , Anish Tamse , Seungsoo Jeong , Kiho Choi , Woongil Choi , Yinji Piao
IPC分类号： H04N19/593 , H04N19/11 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/82
CPC分类号： H04N19/593 , H04N19/11 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/82
摘要： A video decoding method includes predicting a current block according to an intra prediction mode of the current block, determining whether to apply position dependent intra prediction filtering to the current block according to the intra prediction mode of the current block, when the position dependent intra prediction filtering is applied to the current block, determining at least one of an upper reference sample, a left reference sample, an upper weight, and a left weight for the position dependent intra prediction filtering of a current sample of the current block according to the intra prediction mode of the current block, and applying the position dependent intra prediction filtering to the current sample of the current block according to at least one of the upper reference sample, the left reference sample, the upper weight, and the left weight.
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公开(公告)号：US20240163428A1
公开(公告)日：2024-05-16
申请号：US18417778
申请日：2024-01-19
发明人： Narae CHOI , Bora Jin , Yinji Piao , Minwoo Park
IPC分类号： H04N19/11 , H04N19/119 , H04N19/176
CPC分类号： H04N19/11 , H04N19/119 , H04N19/176
摘要： Provided are a video decoding method and a video decoding device, which, during video encoding and decoding processes, obtain most probable mode (MPM) information indicating whether to use MPMs of a current block determined based on at least two of a prediction mode of a left neighboring block adjacent to a left side of the current block, a prediction mode of an upper neighboring block adjacent to an upper side of the current block, and a right neighboring block adjacent to a right side of the current block, obtain extended intra mode set information indicating whether to use an extended intra mode set configured based on the MPMs, and determine an intra prediction mode of the current block based on the MPM information and the extended intra mode set information.
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公开(公告)号：US11962785B2
公开(公告)日：2024-04-16
申请号：US17967654
申请日：2022-10-17
发明人： Woongil Choi , Gahyun Ryu , Minsoo Park , Minwoo Park , Seungsoo Jeong , Kwangpyo Choi , Kiho Choi , Narae Choi , Anish Tamse , Yinji Piao
IPC分类号： H04N19/174 , H04N19/105 , H04N19/119 , H04N19/172 , H04N19/70
CPC分类号： H04N19/174 , H04N19/105 , H04N19/119 , H04N19/172 , H04N19/70
摘要： Provided is a video decoding method including obtaining identification information of a first tile and identification information of a last tile from a bitstream, wherein the first and last tiles are included in a first slice, determining an index difference between the first tile and the last tile, based on a result of comparing the identification information of the first tile with the identification information of the last tile, determining the number of tiles included in the first slice, by using the index difference between the first tile and the last tile, and decoding a plurality of tiles included in the first slice according to an encoding order by using the number of tiles included in the first slice, the identification information of the first tile, and the identification information of the last tile.
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公开(公告)号：US11949906B2
公开(公告)日：2024-04-02
申请号：US17981611
申请日：2022-11-07
发明人： Anish Tamse , Minwoo Park , Minsoo Park
IPC分类号： H04N19/00 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/40 , H04N19/513 , H04N19/52
CPC分类号： H04N19/52 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/40 , H04N19/513
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：US11943471B2
公开(公告)日：2024-03-26
申请号：US17962197
申请日：2022-10-07
发明人： Seungsoo Jeong , Chanyul Kim , Minsoo Park , Minwoo Park , Kiho Choi , Narae Choi , Woongil Choi , Anish Tamse , Yinji Piao
IPC分类号： H04N19/105 , H04N19/119 , H04N19/44 , H04N19/577
CPC分类号： H04N19/577 , H04N19/105 , H04N19/119 , H04N19/44
摘要： A video decoding method includes determining, based on an area of a current block, whether a multi-prediction combination mode for predicting the current block by combining prediction results obtained according to a plurality of prediction modes is applied to the current block, when the multi-prediction combination mode is applied to the current block, determining the plurality of prediction modes to be applied to the current block, generating a plurality of prediction blocks of the current block, according to the plurality of prediction modes, and determining a combined prediction block of the current block, by combining the plurality of prediction blocks according to respective weights.
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公开(公告)号：US11910007B2
公开(公告)日：2024-02-20
申请号：US17962156
申请日：2022-10-07
发明人： Seungsoo Jeong , Chanyul Kim , Minsoo Park , Minwoo Park , Kiho Choi , Narae Choi , Woongil Choi , Anish Tamse , Yinji Piao
IPC分类号： H04N19/105 , H04N19/119 , H04N19/44 , H04N19/577
CPC分类号： H04N19/577 , H04N19/105 , H04N19/119 , H04N19/44
摘要： A video decoding method includes determining, based on an area of a current block, whether a multi-prediction combination mode for predicting the current block by combining prediction results obtained according to a plurality of prediction modes is applied to the current block, when the multi-prediction combination mode is applied to the current block, determining the plurality of prediction modes to be applied to the current block, generating a plurality of prediction blocks of the current block, according to the plurality of prediction modes, and determining a combined prediction block of the current block, by combining the plurality of prediction blocks according to respective weights.
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公开(公告)号：US11871030B2
公开(公告)日：2024-01-09
申请号：US18185982
申请日：2023-03-17
发明人： Seungsoo Jeong , Minwoo Park
IPC分类号： H04N19/176 , H04N7/12 , H04N19/523 , H04N19/103 , H04N19/513
CPC分类号： H04N19/523 , H04N19/103 , H04N19/176 , H04N19/513
摘要： Provided is a video decoding method including: obtaining, from a sequence parameter set, sequence merge mode with motion vector difference (sequence MMVD) information indicating whether an MMVD mode is applicable in a current sequence; when the MMVD mode is applicable according to the sequence MMVD information, obtaining, from a bitstream, first MMVD information indicating whether the MMVD mode is applied in a first inter prediction mode for a current block included in the current sequence; when the MMVD mode is applicable in the first inter prediction mode according to the first MMVD information, reconstructing a motion vector of the current block which is to be used in the first inter prediction mode, by using a distance of a motion vector difference and a direction of a motion vector difference obtained from the bitstream; and reconstructing the current block by using the motion vector of the current block.
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公开(公告)号：US11863753B2
公开(公告)日：2024-01-02
申请号：US17475815
申请日：2021-09-15
发明人： Anish Tamse , Minwoo Park , Woongil Choi
IPC分类号： H04N19/13 , H04N19/103
CPC分类号： H04N19/13 , H04N19/103
摘要： A video decoding method includes obtaining an initial value of a context model for a syntax element, determining, based on the initial value, slope size information, slope sign information, offset size information, and offset sign information of the context model, determining an initial probability of the context model based on the slope size information, the slope sign information, the offset size information, the offset sign information, and a quantization parameter, obtaining at least one bin of a symbol indicating the syntax element by performing context adaptive binary arithmetic coding (CABAC) decoding based on the initial probability of the context model, and reconstructing a video based on the at least one bin.
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公开(公告)号：US20230362373A1
公开(公告)日：2023-11-09
申请号：US18354024
申请日：2023-07-18
发明人： Seungsoo JEONG , Anish Tamse , Minsoo Park , Minwoo Park
IPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/52 , H04N19/91
CPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/52 , H04N19/91
摘要： An image decoding method including: obtaining, from a bitstream, information related to a triangle prediction mode for a current block; splitting the current block into two triangular partitions, according to the information related to a triangle prediction mode; generating a merge list for a triangle prediction mode, according to a merge list generation method in a regular merge mode; selecting a motion vector for the two triangular partitions according to information indicating the motion vector from among motion vectors included in the merge list; obtaining, from a reference image, prediction blocks corresponding to the two triangular partitions, based on the motion vector; and reconstructing the current block, based on a final prediction block.
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