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公开(公告)号：US20220279161A1
公开(公告)日：2022-09-01
申请号：US17608399
申请日：2020-04-29
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM
IPC分类号： H04N19/105 , H04N19/176 , H04N19/186 , H04N19/169 , H04N19/119 , H04N19/80 , H04N19/132
摘要： Disclosed herein is an image encoding/decoding method. A method of decoding an image includes determining an intra prediction mode of a current block, and generating a prediction block of the current block, by performing prediction based on the intra prediction mode. When the intra prediction mode of the current block is a matrix-based intra prediction (MIP) mode, a length of a reference sample used for intra prediction is derived based on a length of the current block.
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2.发明申请公开(公告)号：US20220086486A1
公开(公告)日：2022-03-17
申请号：US17420106
申请日：2019-12-27
申请人： Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Ji Yeon JUNG , Nam Uk KIM , Myung Jun KIM , Yang Woo KIM , Dae Yeon KIM , Jae Gon KIM
IPC分类号： H04N19/593 , H04N19/107 , H04N19/196 , H04N19/176 , H04N19/159 , H04N19/127 , H04N19/503
摘要： Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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公开(公告)号：US20220086443A1
公开(公告)日：2022-03-17
申请号：US17418690
申请日：2019-12-24
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM
IPC分类号： H04N19/124 , H04N19/159 , H04N19/176 , H04N19/186
摘要： Disclosed herein is a method of encoding/decoding an image. The image decoding method includes decoding information on a quantization matrix from a bitstream, acquiring a quantization matrix of a current block based on the information on the quantization matrix, and dequantizing the current block using the quantization matrix of the current block. The acquiring of the quantization matrix of the current block includes deriving a single identifier using at least one of a size of the current block, a prediction mode or a color component, and acquiring the quantization matrix of the current block based on the single identifier.
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公开(公告)号：US20210274223A1
公开(公告)日：2021-09-02
申请号：US17256165
申请日：2019-06-28
申请人： Electronics and Telecommunications Research Institute , CHIPS&MEDIA, INC , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Wook Je JEONG , Dong Jin PARK , Min Yong JEON , Yung Lyul LEE , Nam Uk KIM , Myung Jun KIM , Ji Youn JUNG , Jae Gon KIM
IPC分类号： H04N19/82 , H04N19/176 , H04N19/107
摘要： In the present specification, an image decoding method is disclosed. The image decoding method includes: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, wherein the number of samples used in filtering is determined on the basis of a size of the current block.
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公开(公告)号：US20240323449A1
公开(公告)日：2024-09-26
申请号：US18675857
申请日：2024-05-28
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , CHIPS&MEDIA, INC , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Wook Je JEONG , Dong Jin PARK , Min Yong JEON , Yung Lyul LEE , Nam Uk KIM , Myung Jun KIM , Ji Youn JUNG , Jae Gon KIM
IPC分类号： H04N19/82 , H04N19/107 , H04N19/176
CPC分类号： H04N19/82 , H04N19/107 , H04N19/176
摘要： An image decoding is performed by steps including: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, where the number of samples used in filtering is determined on the basis of a size of the current block.
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6.发明公开公开(公告)号：US20240073445A1
公开(公告)日：2024-02-29
申请号：US18504867
申请日：2023-11-08
发明人： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Dong Jin PARK
IPC分类号： H04N19/55 , H04N19/182 , H04N19/563
CPC分类号： H04N19/55 , H04N19/182 , H04N19/563
摘要： Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.
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7.发明公开公开(公告)号：US20240015323A1
公开(公告)日：2024-01-11
申请号：US18468512
申请日：2023-09-15
申请人： Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Ji Yeon JUNG , Nam Uk KIM , Myung Jun KIM , Yang Woo KIM , Dae Yeon KIM , Jae Gon KIM
IPC分类号： H04N19/593 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/503 , G06T9/00 , H04N19/189
CPC分类号： H04N19/593 , H04N19/107 , H04N19/127 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/503 , G06T9/004 , H04N19/189 , H04N19/132
摘要： Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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8.发明申请公开(公告)号：US20220109846A1
公开(公告)日：2022-04-07
申请号：US17419142
申请日：2019-12-27
申请人： Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Ji Yeon JUNG , Nam Uk KIM , Myung Jun KIM , Yang Woo KIM , Dae Yeon KIM , Jae Gon KIM , Do Hyeon PARK
IPC分类号： H04N19/132 , H04N19/186 , H04N19/176 , H04N19/159 , H04N19/105
摘要： An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.
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9.发明申请公开(公告)号：US20210274197A1
公开(公告)日：2021-09-02
申请号：US17259842
申请日：2019-07-05
申请人： Electronics and Telecommunications Research Institute , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
发明人： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Dae Yeon KIM , Do Hyeon PARK , Jae Gon KIM , Yong Uk YOON , Yung Lyul LEE
IPC分类号： H04N19/18 , H04N19/119 , H04N19/129 , H04N19/176 , H04N19/60
摘要： Disclosed in a method of decoding an image. The method includes determining a zero out region within a current block; partitioning a region except for the zero out region within the current block, on a per transform coefficient group basis; and decoding a transform coefficient on the per transform coefficient group basis.
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公开(公告)号：US20200029079A1
公开(公告)日：2020-01-23
申请号：US16494027
申请日：2018-02-27
发明人： Dae Yeon KIM , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC分类号： H04N19/13 , H04N19/176 , H04N19/103 , H04N19/124 , H04N19/70
摘要： According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.
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