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.

公开(公告)号：US20140044167A1

公开(公告)日：2014-02-13

申请号：US13854499

申请日：2013-04-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soonheung JUNG ,  Dong-San JUN ,  Younhee KIM ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N7/26

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/147 ,  H04N19/82

Abstract: An apparatus for video encoding includes an image prediction unit configured to generate a prediction image about an input image; and a differential signal generation unit configured to generate a differential signal by subtracting the prediction image from the input image. Further, the apparatus includes a restoration image generation unit configured to generate a first restoration image about the input image using the prediction image; and an in-loop filter unit configured to produce a second restoration image that in-loop filtering has been performed, and after performing rate distortion optimization (RDO) by producing bit amount information necessary for restoring the second restoration image, provide result information of the RDO with the image prediction unit.

Abstract translation: 一种用于视频编码的装置包括：图像预测单元，被配置为生成关于输入图像的预测图像; 以及差分信号生成单元，被配置为通过从输入图像中减去预测图像来生成差分信号。 此外，该装置包括恢复图像生成单元，被配置为使用预测图像生成关于输入图像的第一恢复图像; 以及环路滤波器单元，被配置为产生已经执行了环路滤波的第二恢复图像，并且在通过产生恢复第二恢复图像所需的位量信息来执行速率失真优化（RDO）之后，提供 RDO与图像预测单元。

公开(公告)号：US20240236319A9

公开(公告)日：2024-07-11

申请号：US18403918

申请日：2024-01-04

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 ,  H04N19/593 ,  H04N19/61

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/124 ,  H04N19/593 ,  H04N19/61 ,  H04N19/176

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.

公开(公告)号：US20230421804A1

公开(公告)日：2023-12-28

申请号：US18462638

申请日：2023-09-07

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： 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: H04N19/573 ,  H04N19/176

CPC classification number: H04N19/573 ,  H04N19/176

Abstract: 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.

公开(公告)号：US20230032574A1

公开(公告)日：2023-02-02

申请号：US17965160

申请日：2022-10-13

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 ,  H04N19/70 ,  H04N19/513 ,  H04N19/19 ,  H04N19/122 ,  H04N19/176

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.

公开(公告)号：US20220353509A1

公开(公告)日：2022-11-03

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: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  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.