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公开(公告)号：US20240022747A1
公开(公告)日：2024-01-18
申请号：US18475817
申请日：2023-09-27
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/44 , H04N19/52 , H04N19/503 , H04N19/50
CPC classification number: H04N19/44 , H04N19/52 , H04N19/503 , H04N19/50 , H04N19/597
Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20230421778A1
公开(公告)日：2023-12-28
申请号：US18463848
申请日：2023-09-08
Inventor： Dong San JUN , Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/159 , H04N19/105 , H04N19/593 , H04N19/13 , H04N19/126 , H04N19/176 , H04N19/50
CPC classification number: H04N19/159 , H04N19/105 , H04N19/593 , H04N19/13 , H04N19/126 , H04N19/176 , H04N19/50
Abstract: An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra prediction mode for a current block, selecting at least one reconstructed sample line neighboring to the current block, constructing a reference sample using at least one reconstructed sample included in the at least one reconstructed sample line, and performing intra prediction for the current block based on the intra prediction mode and the reference sample.
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公开(公告)号：US20230370585A1
公开(公告)日：2023-11-16
申请号：US18358871
申请日：2023-07-25
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Gwang Hoon PARK , Jin Soo CHOI , Tae Hyun KIM , Dae Young LEE , Young Su HEO
IPC: H04N19/105 , H04N19/159 , H04N19/137 , H04N19/172 , G06T5/00 , G06T7/246 , H04N19/51 , G06T5/50 , H04N19/176 , H04N19/139 , H04N19/513 , H04N19/174 , G06T3/00
CPC classification number: H04N19/105 , H04N19/159 , H04N19/137 , H04N19/172 , G06T5/006 , G06T7/248 , H04N19/51 , G06T5/50 , H04N19/176 , H04N19/139 , H04N19/521 , H04N19/174 , G06T3/0006
Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
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114.发明公开公开(公告)号：US20230362369A1
公开(公告)日：2023-11-09
申请号：US18353731
申请日：2023-07-17
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/174 , H04N19/119 , H04N19/172
CPC classification number: H04N19/119 , H04N19/172 , H04N19/174
Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving slice mode information on a slice included in a current picture, deriving slice identification information on the basis of the slice mode information, and decoding the slice on the basis of the slice identification information.
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公开(公告)号：US20230336779A1
公开(公告)日：2023-10-19
申请号：US18340762
申请日：2023-06-23
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80
CPC classification number: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80 , H04N19/176
Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.
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Patent Agency Ranking
116.发明公开公开(公告)号：US20230328250A1
公开(公告)日：2023-10-12
申请号：US18322742
申请日：2023-05-24
Inventor： Dae Yeon KIM , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/13 , H04N19/176 , H04N19/124 , H04N19/70 , H04N19/103
CPC classification number: H04N19/13 , H04N19/103 , H04N19/124 , H04N19/176 , H04N19/70
Abstract: 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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公开(公告)号：US20230247194A1
公开(公告)日：2023-08-03
申请号：US18191297
申请日：2023-03-28
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/11 , H04N19/176 , H04N19/129 , H04N19/186 , H04N19/159 , H04N19/12 , H04N19/18
CPC classification number: H04N19/11 , H04N19/12 , H04N19/18 , H04N19/129 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/61
Abstract: The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block, wherein the step of scanning the residual signal can determine a scanning type for a luminance signal and a chroma signal of the current block according to an intra prediction mode for a luminance sample of the current block.
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公开(公告)号：US20230199200A1
公开(公告)日：2023-06-22
申请号：US18108342
申请日：2023-02-10
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEOONG , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/176 , H04N19/129 , H04N19/136
CPC classification number: H04N19/176 , H04N19/129 , H04N19/136
Abstract: Provided is a transform coefficient scan method including: determining a reference transform block for a decoding target block; deriving a scanning map of the decoding target block using scanning information of the reference transform block; and performing inverse scanning on a transform coefficient of the decoding target block using the derived scanning map. According to the present invention, picture encoding/decoding efficiency may be improved.
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公开(公告)号：US20230188749A1
公开(公告)日：2023-06-15
申请号：US18164097
申请日：2023-02-03
Inventor： Jin Ho LEE , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Ha Hyun LEE , Jong Ho KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/176 , H04N19/82 , H04N19/136 , H04N19/44 , H04N19/105
CPC classification number: H04N19/593 , H04N19/44 , H04N19/82 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/182
Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive fitter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block: applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
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公开(公告)号：US20230132843A1
公开(公告)日：2023-05-04
申请号：US18087577
申请日：2022-12-22
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Wook Je JEONG , Hyun Gyu KIM
IPC: H04N19/13 , H04N19/176 , H04N19/70
Abstract: An image decoding method is disclosed in the present specification. A method of decoding an image, the method may comprises determining whether to perform a context update for a first syntax element of a current block, updating, on the basis of the determination, a context for entropy decoding of the first syntax element and generating, on the basis of the updated context, a bin for the first syntax element, and wherein whether to perform the context update is determined on the basis of the number of pre-decoded predetermined syntax elements for the current block.
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