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公开(公告)号：US20190200040A1
公开(公告)日：2019-06-27
申请号：US16301318
申请日：2017-07-12
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Ha Hyun LEE , Dong San JUN , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/583
CPC classification number: H04N19/583 , H04N19/146 , H04N19/176 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/91
Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.
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公开(公告)号：US20180316913A1
公开(公告)日：2018-11-01
申请号：US15772284
申请日：2016-11-18
Inventor： Dong San JUN , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/103 , H04N19/146 , H04N19/159 , H04N19/91 , H04N19/167 , H04N19/44
CPC classification number: H04N19/103 , H04N19/146 , H04N19/167 , H04N19/44
Abstract: Provided are method and apparatus methods and apparatuses for encoding an intra-prediction mode based on a secondary IPM. The present invention may comprises a first decision step of determining whether an intra-prediction mode of a current block is included in a first candidate mode set including M candidate modes (M is an integer equal to or greater than 1); a second decision step of determining whether the intra-prediction mode of the current block is included in a second candidate mode set including N candidate modes (N is an integer equal to or greater than 1) based on a first determination result representing a determination result of the first decision step; and an intra prediction mode encoding step of encoding the intra-prediction mode of the current block based on the first determination result or a second determination result representing a determination result of the second decision step.
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公开(公告)号：US20250133239A1
公开(公告)日：2025-04-24
申请号：US19005435
申请日：2024-12-30
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Dong San JUN , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI , Yung Lyul LEE , Jun Woo CHOI
IPC: H04N19/91 , H04N19/146 , H04N19/149 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/44
Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.
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公开(公告)号：US20250111542A1
公开(公告)日：2025-04-03
申请号：US18714539
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 , Jin Woong KIM , Hui Yong KIM , Hyun Min BAN , Seung Mi CHOI , Hyun Suk KO
IPC: G06T9/00
Abstract: The image encoding and decoding method and apparatus based on a periodicity on phase signal are disclosed. One embodiment on an encoding an image, the method comprising: generating a prediction signal for an input signal, calculating an initial residual signal, which is a difference value between the input signal and the prediction signal, generating a transformed residual signal by transforming a value of the initial residual signal to have a size value within a preset range, and encoding the transformed residual signal, wherein the transformed residual signal is generated based on a period of a signal, wherein the preset range is a range of the period of the signal.
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公开(公告)号：US20250097430A1
公开(公告)日：2025-03-20
申请号：US18968618
申请日：2024-12-04
Inventor： Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/137 , H04N19/105 , H04N19/13 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/91
Abstract: The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.
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Patent Agency Ranking
公开(公告)号：US20240323359A1
公开(公告)日：2024-09-26
申请号：US18737694
申请日：2024-06-07
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 , G06T3/02 , G06T5/50 , G06T5/80 , G06T7/246 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/51 , H04N19/513
CPC classification number: H04N19/105 , G06T5/50 , G06T5/80 , G06T7/248 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/51 , H04N19/521 , G06T3/02 , H04N19/174
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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公开(公告)号：US20240137507A1
公开(公告)日：2024-04-25
申请号：US18399315
申请日：2023-12-28
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/82
CPC classification number: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/82
Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise decoding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
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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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50.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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