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11.发明授权公开(公告)号：US11425390B2
公开(公告)日：2022-08-23
申请号：US16964878
申请日：2019-01-25
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： 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: H04N19/105 , H04N19/176 , H04N19/119 , H04N19/137 , H04N19/159
Abstract: 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：US11363260B2
公开(公告)日：2022-06-14
申请号：US16983218
申请日：2020-08-03
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Industry-Academia Cooperation Group of Sejong University
Inventor： Jin-Ho Lee , Jae-Gon Kim , Jung-Won Kang , Do-Hyeon Park , Yung-Lyul Lee , Ha-Hyun Lee , Sung-Chang Lim , Hui-Yong Kim , Ji-Hoon Do , Yong-Uk Yoon
IPC: H04N19/11 , H04N19/159 , H04N19/176 , H04N19/119 , H04N19/105
Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.
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公开(公告)号：US20220166977A1
公开(公告)日：2022-05-26
申请号：US17667141
申请日：2022-02-08
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： 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: H04N19/119 , H04N19/105 , H04N19/124 , H04N19/61 , H04N19/593
Abstract: 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：US11205257B2
公开(公告)日：2021-12-21
申请号：US16697585
申请日：2019-11-27
Inventor： Se-Yoon Jeong , Dae-Yeol Lee , Seung-Hyun Cho , Hyunsuk Ko , Youn-Hee Kim , Jong-Ho Kim , Jin-Wuk Seok , Joo-Young Lee , Woong Lim , Hui-Yong Kim , Jin-Soo Choi
Abstract: Disclosed herein are a method and apparatus for measuring video quality based on a perceptually sensitive region. The quality of video may be measured based on a perceptually sensitive region and a change in the perceptually sensitive region. The perceptually sensitive region includes a spatial perceptually sensitive region, a temporal perceptually sensitive region, and a spatio-temporal perceptually sensitive region. Perceptual weights are applied to a detected perceptually sensitive region and a change in the detected perceptually sensitive region. Distortion is calculated based on the perceptually sensitive region and the change in the perceptually sensitive region, and a result of quality measurement for a video is generated based on the calculated distortion.
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公开(公告)号：US10827173B2
公开(公告)日：2020-11-03
申请号：US16188587
申请日：2018-11-13
Inventor： Woong Lim , Seung-Hyun Cho , Joo-Young Lee , Youn-Hee Kim , Jin-Wuk Seok , Jong-Ho Kim , Dae-Yeol Lee , Se-Yoon Jeong , Hui-Yong Kim , Jin-Soo Choi
IPC: H04N19/124 , H04N19/70
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In quantization and dequantization, multiple quantization methods and multiple dequantization methods may be used. The multiple quantization methods include a variable-rate step quantization method and a fixed-rate step quantization method. The variable-rate step quantization method may be a quantization method in which an increment in a quantization step depending on an increase in a value of a quantization parameter by 1 is not fixed. The fixed-rate step quantization method may be a quantization method in which the increment in the quantization step depending on the increase of the value of the quantization parameter by 1 is fixed.
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Patent Agency Ranking
公开(公告)号：US10257528B2
公开(公告)日：2019-04-09
申请号：US15287345
申请日：2016-10-06
Inventor： Se-Yoon Jeong , Hui-Yong Kim , Jong-Ho Kim , Sung-Chang Lim , Shanglin Yang , C.-C. Jay Kuo , Qin Huang
IPC: H04N19/31 , H04N19/154 , H04N19/136 , H04N19/172 , H04N19/132
Abstract: Disclosed herein are a method and apparatus that adaptively perform encoding and decoding based on image quality. An encoding apparatus may determine optimal Frames Per Second (FPS) for a video and may encode the video based on the determined FPS. Further, the encoding apparatus may provide improved temporal scalability. A decoding apparatus may select a frame to be displayed from among frames of a video depending on a required minimum satisfied user ratio. Through the selection of the frame, the decoding apparatus may provide improved temporal scalability.
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公开(公告)号：US12244853B2
公开(公告)日：2025-03-04
申请号：US17529757
申请日：2021-11-18
Applicant: Electronics and Telecommunications Research Institute , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Hyunsuk Ko , Jung-Won Kang , Sung-Chang Lim , Jin-Ho Lee , Ha-Hyun Lee , Dong-San Jun , Hae-Chul Choi , Hui-Yong Kim , A-Ram Back
IPC: H04N19/593 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/184
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Encoding and decoding of a target block are performed using intra-prediction. The intra-prediction is intra-prediction that uses bidirectional intra-prediction and a remaining mode. In bidirectional intra-prediction, a prediction value for a target pixel in the target block is determined based on reference pixels in two directions of bidirectional intra-prediction. In intra-prediction using a remaining mode, the remaining mode indicates remaining intra-prediction modes other than MPMs present in an MPM list.
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18.发明公开公开(公告)号：US20240348788A1
公开(公告)日：2024-10-17
申请号：US18628969
申请日：2024-04-08
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
Inventor： Woong LIM , Jin-Young Lee , Gun Bang , Hui-Yong Kim
IPC: H04N19/137 , H04N19/159 , H04N19/176 , H04N19/182
CPC classification number: H04N19/137 , H04N19/159 , H04N19/176 , H04N19/182
Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using geometric partitioning. A target block may be geometrically partitioned, and multiple partitioned regions may be generated from geometric partitioning. Each partitioned region may have a non-square and a non-rectangular shape. Different prediction schemes may be applied to different partitioned regions. The different prediction schemes for multiple partitioned regions may be signaled as explicit information, and may be derived using information about a coding parameter for the target block or the like.
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公开(公告)号：US11956426B2
公开(公告)日：2024-04-09
申请号：US17739365
申请日：2022-05-09
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Korea Aerospace University , Industry-Academia Cooperation Group of Sejong University
Inventor： Jin-Ho Lee , Jae-Gon Kim , Jung-Won Kang , Do-Hyeon Park , Yung-Lyul Lee , Ha-Hyun Lee , Sung-Chang Lim , Hui-Yong Kim , Ji-Hoon Do , Yong-Uk Yoon
IPC: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
CPC classification number: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.
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公开(公告)号：US11943447B2
公开(公告)日：2024-03-26
申请号：US17864226
申请日：2022-07-13
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： 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: H04N19/105 , H04N19/119 , H04N19/137 , H04N19/159 , H04N19/176
CPC classification number: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
Abstract: 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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