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公开(公告)号：US12096002B2
公开(公告)日：2024-09-17
申请号：US17318020
申请日：2021-05-12
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/59 , H04N19/61 , H04N19/80
CPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/59 , H04N19/61 , H04N19/80
摘要： Disclosed are an image encoding/decoding method and apparatus. The method and apparatus select at least one reference pixel line from among multiple reference pixel lines and derive a predicted value of a pixel within a current block by using the value of at least one pixel within the selected reference pixel line(s). Alternatively, the method and apparatus derive an intra prediction mode of a reconstructed pixel region on the basis of a reference pixel region of at least one reconstructed pixel region, derive an intra prediction mode of a current block on the basis of the derived intra prediction mode of the reconstructed pixel region, obtain an intra prediction block of the current block by using the derived intra prediction mode, and reconstruct the current block by summing the obtained intra prediction block and a residual block of the current block.
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公开(公告)号：US11909970B2
公开(公告)日：2024-02-20
申请号：US18468555
申请日：2023-09-15
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/192 , H04N19/96
CPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/192 , H04N19/96
摘要： The present invention provides an image encoding method and an image decoding method. The image encoding method of the present invention comprises: a first dividing step of dividing a current image into a plurality of blocks; and a second dividing step of dividing, into a plurality of sub blocks, a block, which is to be divided and includes a boundary of the current image, among the plurality of blocks, wherein the second dividing step is recursively performed by setting a sub block including the boundary of the current images as the block to be divided, until the sub block including the boundary of the current image does not exist among the sub blocks.
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公开(公告)号：US11856208B1
公开(公告)日：2023-12-26
申请号：US18244960
申请日：2023-09-12
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/176 , H04N19/105 , H04N19/136 , H04N19/132 , H04N19/167 , H04N19/196 , H04N19/50 , H04N19/503
CPC分类号： H04N19/176 , H04N19/105 , H04N19/132 , H04N19/136 , H04N19/167 , H04N19/196 , H04N19/50 , H04N19/503
摘要： A method for decoding an image signal according to the present invention may comprise the steps of: determining whether there is a brightness change between a current image including a current block and a reference image of the current image; if it is determined that there is a brightness change between the current image and the reference image, determining weight prediction parameter candidates for the current block; determining a weight prediction parameter for the current block on the basis of index information which specifies any one of the weight prediction parameter candidates; and performing a prediction on the current block on the basis of the weight prediction parameter.
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4.发明授权公开(公告)号：US11792426B2
公开(公告)日：2023-10-17
申请号：US17253720
申请日：2019-06-18
发明人： Joo Hee Moon , Jae Min Ha , Dong Jae Won , Sung Won Lim
IPC分类号： H04N19/593 , H04N19/105 , H04N19/176 , H04N19/182 , H04N19/46
CPC分类号： H04N19/593 , H04N19/105 , H04N19/176 , H04N19/182 , H04N19/46
摘要： Disclosed herein are an image encoding method and an image decoding method. The image decoding method of the present disclosure may include reconstructing reference pixel line information, selecting, based on the reference pixel line information, at least one reference pixel line among a plurality of reference pixel lines, and generating a prediction block for a current block by performing intra prediction for the current block based on the selected reference pixel line.
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公开(公告)号：US11792409B2
公开(公告)日：2023-10-17
申请号：US17318144
申请日：2021-05-12
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/59 , H04N19/61 , H04N19/80
CPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/59 , H04N19/61 , H04N19/80
摘要： Disclosed are an image encoding/decoding method and apparatus. The method and apparatus select at least one reference pixel line from among multiple reference pixel lines and derive a predicted value of a pixel within a current block by using the value of at least one pixel within the selected reference pixel line(s). Alternatively, the method and apparatus derive an intra prediction mode of a reconstructed pixel region on the basis of a reference pixel region of at least one reconstructed pixel region, derive an intra prediction mode of a current block on the basis of the derived intra prediction mode of the reconstructed pixel region, obtain an intra prediction block of the current block by using the derived intra prediction mode, and reconstruct the current block by summing the obtained intra prediction block and a residual block of the current block.
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公开(公告)号：US11425426B2
公开(公告)日：2022-08-23
申请号：US16482457
申请日：2018-01-31
发明人： Joo Hee Moon , Jae Min Ha , Dong Jae Won , Sung Won Lim
IPC分类号： H04N19/91 , H04N19/176 , H04N19/70 , H04N19/132 , H04N19/60
摘要： The present invention relates to an image encoding/decoding method and device, and the image encoding method or device according to an embodiment of the present invention may encode a position of a reference coefficient within a current transform block to be encoded, and encoding skip region information of a skip region selected on the basis of the position of the reference coefficient. The skip region information may represent whether or not coefficients within the skip region have an identical coefficient value.
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公开(公告)号：US11082700B2
公开(公告)日：2021-08-03
申请号：US16860112
申请日：2020-04-28
发明人： Joo Hee Moon , Dong Jae Won , Sung Won Lim
IPC分类号： H04N19/14 , H04N19/11 , H04N19/176 , H04N19/593
摘要： A method for encoding image signal, according to the present invention, can: encode a partial block coefficient flag indicating whether a coefficient of a current partial block is a non-zero coefficient; encode a first flag indicating whether an absolute value of the coefficient is greater than 1, encode a second flag indicating whether the absolute value of the coefficient is greater than 2; encode the residual coefficients, which have not been encoded, on the basis of the first flag or the second flag in the current partial block; and encode a code for the coefficient of the current partial block.
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公开(公告)号：US10979709B2
公开(公告)日：2021-04-13
申请号：US16341830
申请日：2017-10-12
发明人： Joo Hee Moon , Dong Jae Won , Sung Won Lim
IPC分类号： H04N19/119 , H04N19/176 , H04N19/129 , H04N19/159 , H04N19/593 , H04N19/61
摘要： The present invention provides an image encoding method and an image decoding method. The image decoding method, according to the present invention, comprises the steps of: determining a transformation performing region; segmenting the determined transformation performing region into at least one sub-transform block by using at least one of quadtree segmentation and binary tree segmentation; and performing inverse transformation on the at least one sub-transform block.
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公开(公告)号：US11902521B2
公开(公告)日：2024-02-13
申请号：US18468547
申请日：2023-09-15
发明人： Joo Hee Moon , Sung Won Lim , Dong Jae Won
IPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/192 , H04N19/96
CPC分类号： H04N19/119 , H04N19/105 , H04N19/176 , H04N19/192 , H04N19/96
摘要： The present invention provides an image encoding method and an image decoding method. The image encoding method of the present invention comprises: a first dividing step of dividing a current image into a plurality of blocks; and a second dividing step of dividing, into a plurality of sub blocks, a block, which is to be divided and includes a boundary of the current image, among the plurality of blocks, wherein the second dividing step is recursively performed by setting a sub block including the boundary of the current images as the block to be divided, until the sub block including the boundary of the current image does not exist among the sub blocks.
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公开(公告)号：US11665337B2
公开(公告)日：2023-05-30
申请号：US17580937
申请日：2022-01-21
发明人： Joo Hee Moon , Dong Jae Won , Sung Won Lim
IPC分类号： H04N19/103 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/51 , H04N19/117
CPC分类号： H04N19/103 , H04N19/117 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/51
摘要： Disclosed are an image encoding/decoding method and apparatus. The image decoding method includes decoding coding mode information of a current coding block, dividing the current coding block into at least one prediction block, and generating prediction samples of the at least one prediction block on the basis of the decoded coding mode, in which the coding mode information is information indicating any one mode among intra mode, inter mode, and hybrid mode.
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