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11.发明申请公开(公告)号：US20210218992A1
公开(公告)日：2021-07-15
申请号：US17214059
申请日：2021-03-26
Applicant: LG Electronics Inc.
Inventor： Yong Joon JEON , Seung Wook PARK , Jae Hyun LIM , Jung Sun KIM , Joon Young PARK , Young Hee CHOI , Jae Won SUNG , Byeong Moon JEON
IPC: H04N19/593 , G06T9/00 , H04N19/11 , H04N19/132 , H04N19/136 , H04N19/70 , H04N19/176 , H04N19/186 , H04N19/423 , H04N19/44 , H04N19/16
Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.
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公开(公告)号：US20210084320A1
公开(公告)日：2021-03-18
申请号：US17107083
申请日：2020-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Joon Young Park , SeungWook PARK , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON
IPC: H04N19/44 , H04N19/70 , H04N19/196 , H04N19/11 , H04N19/176 , H04N19/184 , H04N19/587 , H04N19/61
Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed, specifying a bock type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.
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公开(公告)号：US20210076067A1
公开(公告)日：2021-03-11
申请号：US17100162
申请日：2020-11-20
Applicant: LG Electronics Inc.
Inventor： Jae Won SUNG , Seung Wook PARK , Yong Joon JEON , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON , Joon Young PARK
IPC: H04N19/593 , H04N19/105 , H04N19/176 , H04N19/61 , H04N19/14 , H04N19/157 , H04N19/182 , H04N19/44 , H04N19/86 , H04N19/46
Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.
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公开(公告)号：US20190238875A1
公开(公告)日：2019-08-01
申请号：US16380345
申请日：2019-04-10
Applicant: LG ELECTRONICS INC.
Inventor： Joon Young PARK , Seung Wook PARK , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON
IPC: H04N19/44 , H04N19/11 , H04N19/196 , H04N19/70 , H04N19/176 , H04N19/587 , H04N19/184 , H04N19/61
CPC classification number: H04N19/44 , H04N19/11 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/587 , H04N19/61 , H04N19/70
Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed, specifying a block type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.
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公开(公告)号：US20190110074A1
公开(公告)日：2019-04-11
申请号：US16210700
申请日：2018-12-05
Applicant: LG Electronics Inc.
Inventor： Jae Won SUNG , Seung Wook PARK , Yong Joon JEON , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON , Joon Young PARK
IPC: H04N19/593 , H04N19/46 , H04N19/86 , H04N19/44 , H04N19/182 , H04N19/105 , H04N19/14 , H04N19/61 , H04N19/176 , H04N19/157
Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.
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Patent Agency Ranking
公开(公告)号：US20160212445A1
公开(公告)日：2016-07-21
申请号：US15007896
申请日：2016-01-27
Applicant: LG ELECTRONICS INC.
Inventor： Jae Won SUNG , Seung Wook PARK , Yong Joon JEON , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON , Joon Young PARK
IPC: H04N19/593 , H04N19/86 , H04N19/105 , H04N19/44 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/14
CPC classification number: H04N19/593 , H04N19/105 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/46 , H04N19/61 , H04N19/86
Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.
Abstract translation: 公开了一种解码视频信号的方法和装置。 一种解码视频信号的方法包括获取当前块的块类型信息，基于块类型信息确认当前块的预测模式，如果当前块的预测模式是根据该块类型信息的帧内预测模式， 使用当前块的至少一个相邻像素的至少一个相关参数信息，使用相关参数信息获得当前块的帧内预测值，并使用当前块的帧内预测值重构当前块。
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公开(公告)号：US20250016374A1
公开(公告)日：2025-01-09
申请号：US18896433
申请日：2024-09-25
Applicant: LG ELECTRONICS INC.
Inventor： Jung Sun KIM , Seung Wook PARK , Young Hee CHOI , Jae Won SUNG , Byeong Moon JEON , Joon young PARK
IPC: H04N19/61 , H04N19/119 , H04N19/122 , H04N19/129 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/625
Abstract: The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the nonzero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform block by prioritizing the position of the pixel having the greatest number of the nonzero transform coefficients; and decoding the transform coefficients arranged in the scan order changed in the previous step, wherein the first transform block and the second transform block have sizes corresponding to the transform size flag, and are contained in the current macroblock.
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公开(公告)号：US20240223791A1
公开(公告)日：2024-07-04
申请号：US18435754
申请日：2024-02-07
Applicant: LG ELECTRONICS INC.
Inventor： Joon Young PARK , Seung Wook PARK , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON
IPC: H04N19/44 , H04N19/11 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/587 , H04N19/61 , H04N19/70
CPC classification number: H04N19/44 , H04N19/11 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/587 , H04N19/61 , H04N19/70
Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed, specifying a bock type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.
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19.发明公开公开(公告)号：US20230276071A1
公开(公告)日：2023-08-31
申请号：US18142891
申请日：2023-05-03
Applicant: LG Electronics Inc.
Inventor： Yong Joon JEON , Seung Wook PARK , Jae Hyun LIM , Jung Sun KIM , Joon Young PARK , Young Hee CHOI , Jae Won SUNG , Byeong Moon JEON
IPC: H04N19/593 , H04N19/70 , H04N19/11 , H04N19/132 , H04N19/186 , H04N19/16 , G06T9/00 , H04N19/136 , H04N19/176 , H04N19/423 , H04N19/44
CPC classification number: H04N19/593 , H04N19/70 , H04N19/11 , H04N19/132 , H04N19/186 , H04N19/16 , G06T9/004 , H04N19/136 , H04N19/176 , H04N19/423 , H04N19/44
Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.
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公开(公告)号：US20220295098A1
公开(公告)日：2022-09-15
申请号：US17831919
申请日：2022-06-03
Applicant: LG Electronics Inc.
Inventor： Jae Won SUNG , Seung Wook PARK , Yong Joon JEON , Jung Sun KIM , Young Hee CHOI , Byeong Moon JEON , Joon Young PARK
IPC: H04N19/593 , H04N19/105 , H04N19/176 , H04N19/61 , H04N19/14 , H04N19/157 , H04N19/182 , H04N19/44 , H04N19/86 , H04N19/46
Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.
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