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31.
公开(公告)号:US20220078477A1
公开(公告)日:2022-03-10
申请号:US17525053
申请日:2021-11-12
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: H04N19/52
Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.
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32.
公开(公告)号:US20220070474A1
公开(公告)日:2022-03-03
申请号:US17524570
申请日:2021-11-11
Inventor: Sung Chang LIM , Hyun Suk KO , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/159 , H04N19/105 , H04N19/132 , H04N19/176
Abstract: An image encoding/decoding method and apparatus for performing intra prediction mode based intra prediction are provided. An image decoding method may comprise decoding an intra prediction mode of a current block, deriving at least one intra prediction mode from the decoded intra prediction mode of the current block, generating two or more intra prediction blocks using the intra prediction mode of the current block and the derived intra prediction mode, and generating an intra prediction block of the current block based on the two or more intra prediction blocks.
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33.
公开(公告)号:US20220038682A1
公开(公告)日:2022-02-03
申请号:US17277541
申请日:2019-09-18
Inventor: Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/105 , H04N19/176 , H04N19/137 , H04N19/51 , H04N19/96
Abstract: An image encoding/decoding method is disclosed. Present invention of the method of decoding an image comprises deriving motion information of a current block by using a candidate list, generating a prediction block of the current block by using the motion information of the current block and adding the motion information of the current block in the candidate list, wherein the candidate list is used for inter prediction of a block to be decoded after the current block.
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34.
公开(公告)号:US20220014736A1
公开(公告)日:2022-01-13
申请号:US17319175
申请日:2021-05-13
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Hanbat National University Industry-Academic Cooperation Foundation
Inventor: Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Hyun Suk KO , Ha Hyun LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jae Gon KIM , Do Hyeon PARK , Jin Soo CHOI , Hae Chul CHOI
IPC: H04N19/11 , H04N19/176 , H04N19/159 , G06F17/18 , H04N19/91 , H04N19/117 , H04N19/132 , H04N19/119 , H04N19/105 , H04N19/80 , H04N19/513 , H04N19/174 , H04N19/13
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.
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35.
公开(公告)号:US20210274215A1
公开(公告)日:2021-09-02
申请号:US17260938
申请日:2019-07-16
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor: Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Gwang Hoon PARK , Tae Hyun KIM , Dae Young LEE
IPC: H04N19/56 , H04N19/139 , H04N19/105 , H04N19/96 , H04N19/176
Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention comprises the step of deriving a first candidate list for the current block by using motion information of neighboring blocks of the current block; deriving a second candidate list for the current block by using previously reconstructed motion information; deriving a third candidate list by using the first candidate list and the second candidate list; and deriving a prediction block for the current block by using the third candidate list.
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36.
公开(公告)号:US20210274197A1
公开(公告)日:2021-09-02
申请号:US17259842
申请日:2019-07-05
Applicant: Electronics and Telecommunications Research Institute , CHIPS&MEDIA, INC , 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 , Dae Yeon KIM , Do Hyeon PARK , Jae Gon KIM , Yong Uk YOON , Yung Lyul LEE
IPC: H04N19/18 , H04N19/119 , H04N19/129 , H04N19/176 , H04N19/60
Abstract: 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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37.
公开(公告)号:US20210136364A1
公开(公告)日:2021-05-06
申请号:US16766611
申请日:2018-11-22
Inventor: Hyun Suk KO , Jin Ho LEE , Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/11 , H04N19/176 , H04N19/105 , H04N19/593 , H04N19/132
Abstract: An image encoding/decoding method is disclosed. A method of decoding an image, the method comprising, deriving an intra prediction mode for a current block, decoding at least one original sample that is present in a rightmost column and a bottommost row (a bottom row) of the current block, constructing a reference sample by using the at least one decoded original sample and performing intra prediction on the current block by using the constructed reference sample.
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38.
公开(公告)号:US20210120261A1
公开(公告)日:2021-04-22
申请号:US16982972
申请日:2019-03-21
Inventor: Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/513 , H04N19/176 , H04N19/96 , H04N19/105 , H04N19/159 , H04N19/423
Abstract: The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.
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公开(公告)号:US20210051330A1
公开(公告)日:2021-02-18
申请号:US17038332
申请日:2020-09-30
Inventor: Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Dong San JUN , Hyun Suk KO , Jin Ho LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/139 , H04N19/52 , H04N19/51 , H04N19/117 , H04N19/124 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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公开(公告)号:US20210014488A1
公开(公告)日:2021-01-14
申请号:US16757002
申请日:2018-10-19
Inventor: Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/117 , H04N19/176 , H04N19/159 , H04N19/14 , H04N19/105
Abstract: The present invention relates to an image encoding and decoding method. An image decoding method for the same includes: determining a reference sample of a current block; performing filtering for the reference sample on the basis of a feature of an area where the reference sample is included; and performing intra-prediction by using the reference sample for which filtering is performed.
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