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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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122.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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124.发明公开公开(公告)号：US20230230284A1
公开(公告)日：2023-07-20
申请号：US18072146
申请日：2022-11-30
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
Inventor： Kwan Jung OH , Hui Yong KIM , Hyun Min BAN , Seung Mi CHOI , Jun Yeong CHA , Hyun Suk KO
IPC: G06T9/00
CPC classification number: G06T9/00
Abstract: The residual signal encoding and decoding method and apparatus based on a periodicity on phase signal are disclosed. One embodiment on a method for decoding an image, the method comprising: generating a prediction signal for a current signal, decoding an encoded residual signal from a bitstream, generating an initial reconstructed signal based on the prediction signal and the residual signal, and generating a transformed reconstructed signal by transforming a value of the initial reconstructed signal to have a size value of a preset range, wherein the generating of the transformed reconstructed signal generates the transformed reconstructed signal from the value of the initial reconstructed signal by using a clipping function with a minimum value of the preset range and a maximum value of the preset range as input values, and wherein the preset range is a period range of a signal.
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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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Patent Agency Ranking
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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公开(公告)号：US20230042486A1
公开(公告)日：2023-02-09
申请号：US17972894
申请日：2022-10-25
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 , H04N19/147 , H04N19/159 , H04N19/176
Abstract: A method and apparatus use a geometric modified image for video encoding/decoding. The encoding method may include: generating a geometric modified reference picture by geometrically modifying a reference picture; generating a prediction block of a current block within an encoding target picture by performing inter prediction by referencing the reference picture or the geometrically modified reference picture; and encoding inter-prediction information of the current block.
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公开(公告)号：US20220408091A1
公开(公告)日：2022-12-22
申请号：US17894843
申请日：2022-08-24
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Jae Gon KIM , Do Hyeon PARK , Yong Uk YOON , Yung Lyul LEE
IPC: H04N19/13 , H04N19/172 , H04N19/184
Abstract: There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.
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公开(公告)号：US20220345719A1
公开(公告)日：2022-10-27
申请号：US17857765
申请日：2022-07-05
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: H04N19/159 , H04N19/105 , H04N19/52 , H04N19/139 , H04N19/176 , H04N19/109 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/61
Abstract: An inter-prediction method according to the present invention comprises the steps of: deriving motion information of a current block; and generating a prediction block for the current block on the basis of the derived motion information. According to the present invention, computational complexity can be reduced and encoding efficiency can be improved.
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