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公开(公告)号:US20200169691A1
公开(公告)日:2020-05-28
申请号:US16695886
申请日:2019-11-26
申请人: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
发明人: Se-Yoon JEONG , Min Hyuk KIM , Shinyoung YI , Jung-Won KANG , Hui-Yong KIM , Hakyeong KIM
摘要: Disclosed herein are a method and apparatus for luminance-adaptive opto-electrical transfer and luminance-adaptive electro-optical transfer. For video transmission and compression, opto-electrical transfer and electro-optical transfer are required. The surround luminance and luminance range of an image are taken into consideration when performing opto-electrical transfer and electro-optical transfer. An opto-electrical transfer function may be derived based on a contrast sensitivity function that takes into consideration the surround luminance of an image. Also, parameters relevant to surround luminance may be signaled from an encoding apparatus to a decoding apparatus, and an electro-optical transfer function may be derived based on the parameters.
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2.
公开(公告)号:US20220272368A1
公开(公告)日:2022-08-25
申请号:US17695648
申请日:2022-03-15
申请人: Electronics and Telecommunications Research Institute , RESEARCH AND BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
发明人: Dong-San JUN , Jung-Won KANG , Hyunsuk KO , Sung-Chang LIM , Jin-Ho LEE , Ha-Hyun LEE , Byeung-Woo JEON , Hui-Yong KIM , Jee-Yoon PARK
IPC分类号: H04N19/44 , H04N19/119 , H04N19/122 , H04N19/186 , H04N19/593 , H04N19/60 , H04N19/82
摘要: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Coding decision information of a representative channel of a target block is shared as coding decision information of a target channel of the target block, and decoding of the target block is performed using the coding decision information of the target channel. Since the coding decision information of the representative channel is shared with an additional channel, repeated signaling of identical coding decision information may be prevented. By means of this prevention, the efficiency of encoding and decoding of the target block or the like may be improved.
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公开(公告)号:US20200322628A1
公开(公告)日:2020-10-08
申请号:US16753155
申请日:2018-10-10
申请人: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人: Jin-Ho LEE , Jung-Won KANG , Hyunsuk KO , Sung-Chang LIM , Ha-Hyun LEE , Dong-San JUN , Hui-Yong KIM , Jae-Gon KIM , Do-Hyeon PARK , Yong-Uk YOON
IPC分类号: H04N19/573 , H04N19/176
摘要: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, inter-prediction information for a target block may be derived, and inter prediction for a target block may be performed using the derived inter-prediction information. Combined inter-prediction information may be performed by combining multiple pieces of inter-prediction information, and the combined inter-prediction information may be added as a candidate to a list used for inter prediction. One of candidates in the list may be selected for inter prediction for the target block, and inter prediction using the selected candidate may be performed.
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公开(公告)号:US20200169726A1
公开(公告)日:2020-05-28
申请号:US16088464
申请日:2017-04-07
发明人: Youn-Hee KIM , Jin-Wuk SEOK , Myung-Seok KI , Sung-Chang LIM , Hui-Yong KIM , Jin-Soo CHOI
IPC分类号: H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176
摘要: Disclosed herein are a method and apparatus for deriving motion prediction information and performing encoding and/or decoding on a video using the derived motion prediction information. Each of an encoding apparatus and a decoding apparatus generates a list for inter prediction of a target block. In the generation of the list, whether motion information of a candidate block is to be added to a list is determined based on information about the target block and the motion information. When the motion information passes a motion prediction boundary check, the motion information is added to the list. By means of the motion prediction boundary check, available motion information for prediction of the target block is selectively added to the list.
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公开(公告)号:US20200029077A1
公开(公告)日:2020-01-23
申请号:US16494507
申请日:2018-03-22
申请人: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
发明人: Jin-Ho LEE , Jung-Won KANG , Hyunsuk KO , Sung-Chang LIM , Dong-San JUN , Ha-Hyun LEE , Seung-Hyun CHO , Hui-Yong KIM , Hae-Chul CHOI , Dae-Hyeok GWON , Jae-Gon KIM , A-Ram BACK
IPC分类号: H04N19/119 , H04N19/105 , H04N19/593 , H04N19/124 , H04N19/61
摘要: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
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公开(公告)号:US20230032574A1
公开(公告)日:2023-02-02
申请号:US17965160
申请日:2022-10-13
申请人: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
发明人: Sung-Chang LIM , Jung-Won KANG , Hyunsuk KO , Jin-Ho LEE , Ha-Hyun LEE , Dong-San JUN , Seung-Hyun CHO , Hui-Yong KIM , Yung-Lyul LEE , Jun-Woo CHOI , Jin-Soo CHOI , Nam-Uk KIM , Myung-Jun KIM
IPC分类号: H04N19/117 , H04N19/132 , H04N19/44 , H04N19/80 , H04N19/70 , H04N19/513 , H04N19/19 , H04N19/122 , H04N19/176
摘要: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus, and more particularly, a method and apparatus for performing filtering in video encoding and decoding. An encoding apparatus may perform filtering on a target, and may generate filtering information indicating whether filtering has been performed on the target. Further, the encoding apparatus may generate a bitstream including filtering information. A decoding apparatus may determine, based on filtering information, whether to perform filtering on a target, and may perform filtering on the target. The decoding apparatus may receive filtering information from the encoding apparatus through a bitstream or may derive filtering information using additional information.
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公开(公告)号:US20220353509A1
公开(公告)日:2022-11-03
申请号:US17864226
申请日:2022-07-13
申请人: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人: Sung-Chang LIM , Jung-Won KANG , Hyunsuk KO , Jin-Ho LEE , Ha-Hyun LEE , Dong-San JUN , Hui-Yong KIM , Yung-Lyul LEE , Nam-Uk KIM , Jae-Gon KIM
IPC分类号: H04N19/137 , H04N19/105 , H04N19/176 , H04N19/119 , H04N19/159
摘要: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.
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公开(公告)号:US20220312009A1
公开(公告)日:2022-09-29
申请号:US17621151
申请日:2020-06-22
申请人: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
发明人: Gun BANG , Jin-Young LEE , Woong LIM , Hui-Yong KIM
IPC分类号: H04N19/119 , H04N19/172 , H04N19/96 , H04N19/117 , H04N19/86
摘要: Disclosed herein are a method and apparatus for image encoding and image decoding using region segmentation. A picture is divided into multiple sub-pictures, and encoding and/or decoding are performed on the multiple sub-pictures resulting from division. Encoding operations and/or decoding operations on the sub-pictures may be independently performed. Merging and filtering are applied to reconstructed sub-pictures generated by decoding, and a reconstructed picture is generated after processing of merging and filtering.
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9.
公开(公告)号:US20220295059A1
公开(公告)日:2022-09-15
申请号:US17634944
申请日:2020-08-13
申请人: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人: Jung-Won KANG , Ha-Hyun LEE , Sung-Chang LIM , Jin-Ho LEE , Hui-Yong KIM , Gwang-Hoon PARK , Tae-Hyun KIM , Dae-Young LEE , Woo-Woen GWUN , Won-Jun LEE
IPC分类号: H04N19/119 , H04N19/11 , H04N19/593 , H04N19/70 , H04N19/176 , H04N19/186 , H04N19/139
摘要: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using partitioning. Various prediction methods and prediction modes may be used for prediction of a block. When a block is partitioned, information related to partitioning, such as information indicating whether partitioning is to be performed and information specifying the type of partitioning, is signaled. Also, when partitioning is applied to the block, an available prediction method and an available prediction method in prediction for the block may be restricted in prediction for the block. For optimization of signaling, multiple pieces of information related to prediction may be signaled, wherein the pieces of information may have dependency relationships, and in some cases, additional information may be derived as specific values depending on the value of one piece of information, and signaling of the additional information may be skipped. There can be provided various methods for efficiently signaling multiple pieces of information based on the restrictions and dependency relationships.
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公开(公告)号:US20220277491A1
公开(公告)日:2022-09-01
申请号:US17615519
申请日:2020-05-29
发明人: Joo-Young LEE , Seung-Hyun CHO , Hyunsuk KO , Hyoung-Jin KWON , Youn-Hee KIM , Jong-Ho KIM , Se-Yoon JEONG , Hui-Yong KIM , Jin-Soo CHOI
摘要: Disclosed herein are a method and apparatus for image compression based on machine learning using a global context. The disclosed image compression network employs an existing image quality enhancement network for an end-to-end joint learning scheme. The image compression network may jointly optimize image compression enhancement and quality enhancement. The image compression networks and image quality enhancement networks may be easily combined within a unified architecture which minimizes total loss, and may be easily jointly optimized.
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