公开(公告)号：US20230171390A1

公开(公告)日：2023-06-01

申请号：US17981426

申请日：2022-11-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong-Jun BAE ,  Jung-Won KANG ,  Soo-Woong KIM ,  Gun BANG ,  Jin-Ho LEE ,  Ha-Hyun LEE ,  Sung-Chang LIM

IPC: H04N13/161 ,  H04N19/30 ,  H04N19/187

CPC classification number: H04N13/161 ,  H04N19/30 ,  H04N19/187 ,  H04N2013/0077

Abstract: Disclosed herein are an image compression apparatus and method. The image conversion method includes generating a multi-plane image reconfigured into layers in a depth direction based on multiple pieces of multi-view image data, generating an aggregated layer by aggregating the layers of the multi-plane image into at least one layer, and converting a multi-plane image including the aggregated layer into a two-dimensional (2D) atlas image.

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.

公开(公告)号：US20220295059A1

公开(公告)日：2022-09-15

申请号：US17634944

申请日：2020-08-13

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 ,  Woo-Woen GWUN ,  Won-Jun LEE

IPC: H04N19/119 ,  H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176 ,  H04N19/186 ,  H04N19/139

Abstract: 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.