公开(公告)号：US20190082178A1

公开(公告)日：2019-03-14

申请号：US16084995

申请日：2017-03-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Youn-Hee KIM ,  Jin-Wuk SEOK ,  Hui-Yong KIM ,  Myung-Seok KI ,  Sung-Chang LIM ,  Jin-Soo CHOI

IPC: H04N19/119 ,  H04N19/114 ,  H04N19/174 ,  H04N19/136

Abstract: Disclosed herein are a method and apparatus for video encoding and decoding using picture partition information. Each of the pictures in a video is partitioned into tiles or slices based on picture partition information. Each picture is partitioned using one of at least two different methods based on the picture partition information. The picture partition information may indicate two or more picture partitioning methods. The picture partitioning methods may be changed either periodically or according to a specific rule. The picture partition information may describe such a periodic change or the specified rule.

公开(公告)号：US20170104993A1

公开(公告)日：2017-04-13

申请号：US15287345

申请日：2016-10-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Se-Yoon JEONG ,  Hui-Yong KIM ,  Jong-Ho KIM ,  Sung-Chang LIM ,  Shanglin Yang ,  C.-C. Jay Kuo ,  Qin Huang

IPC: H04N19/109 ,  H04N19/114 ,  H04N19/31 ,  H04N19/177

CPC classification number: H04N19/31 ,  H04N19/132 ,  H04N19/136 ,  H04N19/154 ,  H04N19/172

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.

公开(公告)号：US20220312005A1

公开(公告)日：2022-09-29

申请号：US17620595

申请日：2020-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Chang LIM ,  Jung-Won KANG ,  Ha-Hyun LEE ,  Jin-Ho LEE ,  Hui-Yong KIM

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/70

Abstract: Disclosed herein are a method, apparatus, and storage medium for image encoding/decoding. In the image decoding method, whether filtering is to be performed across a boundary of a target block is determined, and filtering strength for the boundary of the target block and the number of samples to be used for filtering are determined. Based on this determination, filtering across the boundary of the target block is performed. When the filtering strength and the number of samples are determined, coding parameters related to the target block and a neighbor block, such as a block size and a prediction mode, are used.

公开(公告)号：US20220311996A1

公开(公告)日：2022-09-29

申请号：US17621174

申请日：2020-06-22

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Gun BANG ,  Gwang-Hoon PARK ,  Woong LIM ,  Hui-Yong KIM ,  Woo-Woen GWUN ,  Tae-Hyun KIM ,  Dae-Young LEE ,  Won-Jun LEE

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

Abstract: Disclosed herein are a method and apparatus for image encoding and decoding using prediction based on a block shape. Whether a prediction mode is available for a target block is determined. The determination is performed based on the shape of the target block. When the prediction mode is determined to be unavailable for the target block, signaling related to the prediction mode may be omitted, and determination of an additional prediction mode is performed. When the prediction mode is determined to be available for the target block, information indicating whether the prediction mode is to be used for the target block is signaled.

公开(公告)号：US20220303528A1

公开(公告)日：2022-09-22

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 ,  H04N19/176 ,  H04N19/159 ,  H04N19/119

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.

公开(公告)号：US20210037245A1

公开(公告)日：2021-02-04

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: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/119 ,  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.

公开(公告)号：US20200351509A1

公开(公告)日：2020-11-05

申请号：US16760609

申请日：2018-10-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joo-Young LEE ,  Seung-Hyun CHO ,  Youn-Hee KIM ,  Jin-Wuk SEOK ,  Woong LIM ,  Jong-Ho KIM ,  Dae-Yeol LEE ,  Se-Yoon JEONG ,  Hui-Yong KIM ,  Jin-Soo CHOI

IPC: H04N19/42 ,  G06N3/08 ,  G06N3/04 ,  H04N19/136

Abstract: A method and apparatus for image compression using a latent variable are provided. The multiple components of the latent variable may be sorted in order of importance. Through sorting, when the feature information of only some of the multiple components is used, the quality of a reconstructed image may be improved. In order to generate a latent variable, the components of which are sorted in order of importance, learning may be performed in various manners. Also, less important information may be eliminated from the latent variable, and processing, such as quantization, may be applied to the latent variable. Through elimination and processing, the amount of data for the latent variable may be reduced.

公开(公告)号：US20200084441A1

公开(公告)日：2020-03-12

申请号：US16494330

申请日：2018-03-22

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 ,  Hyunsuk KO ,  Ha-Hyun LEE ,  Dong-San JUN ,  Seung-Hyun CHO ,  Hui-Yong KIM ,  Jae-Gon KIM ,  Do-Hyeon PARK ,  Hae-Chul CHOI

IPC: H04N19/105 ,  H04N19/51 ,  H04N19/176 ,  H04N19/139

Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In the encoding and decoding of a video, a prediction mode may be selected from among multiple prediction modes using prediction mode information for a target block, and prediction may be performed on the target block based on the selected prediction mode, wherein the prediction mode information includes information related to a reference block, and wherein the reference block comprises one or more of a spatially neighboring block that is spatially adjacent to the target block and a temporally neighboring block that is temporally adjacent to the target block. When the selected prediction mode includes a plurality of prediction modes, a prediction mode to be used for prediction of the target block may be decided on among the plurality of selected prediction modes through signaling of the prediction mode decision information.

公开(公告)号：US20190281290A1

公开(公告)日：2019-09-12

申请号：US16299661

申请日：2019-03-12

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 ,  H04N19/105 ,  H04N19/119 ,  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.

公开(公告)号：US20190268594A1

公开(公告)日：2019-08-29

申请号：US16461943

申请日：2017-11-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY

Inventor： 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: H04N19/117 ,  H04N19/132 ,  H04N19/44 ,  H04N19/80 ,  H04N19/176 ,  H04N19/513 ,  H04N19/19 ,  H04N19/122 ,  H04N19/70

Abstract: 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.