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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：US20230370634A1
公开(公告)日：2023-11-16
申请号：US18346917
申请日：2023-07-05
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/573 , H04N19/593 , H04N19/436 , H04N19/52 , H04N19/136 , H04N19/105 , H04N19/61
CPC classification number: H04N19/573 , H04N19/593 , H04N19/436 , H04N19/52 , H04N19/136 , H04N19/105 , H04N19/61
Abstract: The image decoding method according to the present invention comprises the steps of: determining the availability of a block adjacent to a current block; configuring a merge candidate list for the current block on the basis of the result of the determined availability; and performing motion compensation for the current block on the basis of the merge candidate list, wherein the step of determining availability comprises the steps of inducing block availability information on the adjacent block and inducing the availability of motion information on the adjacent block, and the step of determining the availability of the adjacent block is such that when there is more than one adjacent block, the availability of adjacent blocks can be determined in accordance with a predetermined order restriction.
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公开(公告)号：US20230370633A1
公开(公告)日：2023-11-16
申请号：US18346914
申请日：2023-07-05
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/573 , H04N19/593 , H04N19/61 , H04N19/105 , H04N19/52 , H04N19/436 , H04N19/136
CPC classification number: H04N19/573 , H04N19/593 , H04N19/61 , H04N19/105 , H04N19/52 , H04N19/436 , H04N19/136
Abstract: The image decoding method according to the present invention comprises the steps of: determining the availability of a block adjacent to a current block; configuring a merge candidate list for the current block on the basis of the result of the determined availability; and performing motion compensation for the current block on the basis of the merge candidate list, wherein the step of determining availability comprises the steps of inducing block availability information on the adjacent block and inducing the availability of motion information on the adjacent block, and the step of determining the availability of the adjacent block is such that when there is more than one adjacent block, the availability of adjacent blocks can be determined in accordance with a predetermined order restriction.
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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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115.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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Patent Agency Ranking
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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117.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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119.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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