公开(公告)号：US20230362356A1

公开(公告)日：2023-11-09

申请号：US18353437

申请日：2023-07-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gun BANG ,  Hui Yong KIM

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/597

CPC classification number: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/597

Abstract: Disclosed are region-based image encoding/decoding method and apparatus. The method of decoding an image includes: determining a projection format of a 360-degree video image; determining, on the basis of the determined projection format, a spatial correlation degree between a current block and a neighboring block; and determining, on the basis of the determined spatial correlation degree, a candidate block for predicting the current block.

公开(公告)号：US20230231999A1

公开(公告)日：2023-07-20

申请号：US18186025

申请日：2023-03-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gun BANG ,  Hui Yong KIM ,  Dong Gyu SIM ,  Seoung Jun OH ,  Sea Nae PARK ,  Jun Taek PARK ,  Jong Seok LEE

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/117 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186

Abstract: There is provided an image decoding method comprising: deriving a first prediction value of a current block by using at least one sample included in a reference block, obtaining an illumination compensation parameter on the basis of a predetermined reference region, deriving a second prediction value of the current block by applying the illumination compensation parameter to the first prediction value and reconstructing the current block on the basis of the second prediction value.

公开(公告)号：US20230133166A1

公开(公告)日：2023-05-04

申请号：US18091542

申请日：2022-12-30

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

Inventor： Gun BANG ,  Won Sik CHEONG ,  Gi Mun UM ,  Nam Ho HUR ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/593 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96 ,  H04N19/107 ,  H04N19/44

Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

公开(公告)号：US20230036579A1

公开(公告)日：2023-02-02

申请号：US17955278

申请日：2022-09-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gun BANG ,  Woong LIM

IPC: H04N19/105 ,  H04N19/70 ,  H04N19/174 ,  H04N19/169

Abstract: Disclosed herein are a method, an apparatus and a storage medium for performing encoding/decoding on an image using a subpicture. A picture may be partitioned into various units such as subpictures and slices, and various syntax elements and structures may be used to specify the units. In an embodiment, there is a method for configuring a reference picture list for motion compensation in the case where the location of a reference subpicture to be referred to for motion compensation is different from the location of a target subpicture. Further, in an embodiment, there is provided a method for providing the configuration of a reference picture list and an override on the number of activated reference indexes.

公开(公告)号：US20220272321A1

公开(公告)日：2022-08-25

申请号：US17620563

申请日：2020-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gun BANG ,  Woong LIM ,  Hui-Yong KIM

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/174 ,  H04N19/46

Abstract: Disclosed herein are a method, apparatus, and storage medium for image encoding/decoding using a reference picture. A reference picture list is configured for encoding/decoding of a target block. Upon configuring the reference picture list, a sequence parameter set and a slice header are used. A picture is divided into sub-pictures and/or slices, and reference picture lists are configured for the sub-pictures and/or slices resulting from division. Reference picture lists for slices may be related to each other, and a current reference picture and a future reference picture in one reference picture list may be used in an additional reference picture list.

公开(公告)号：US20200154136A1

公开(公告)日：2020-05-14

申请号：US16743044

申请日：2020-01-15

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

Inventor： Gun BANG ,  Won Sik CHEONG ,  Gi Mun UM ,  Nam Ho HUR ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/593 ,  H04N19/44 ,  H04N19/107 ,  H04N19/96 ,  H04N19/46 ,  H04N19/176 ,  H04N19/597

Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

公开(公告)号：US20180359487A1

公开(公告)日：2018-12-13

申请号：US15775502

申请日：2016-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY- INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Gun BANG ,  Woo Woen GWUN ,  Gwang Soon LEE ,  Nam Ho HUR ,  Gwang Hoon PARK ,  Sung Jae YOON ,  Young Su HEO ,  Seok Jong HONG

IPC: H04N19/597 ,  H04N13/111 ,  H04N19/593

CPC classification number: H04N19/597 ,  H04N13/111 ,  H04N19/103 ,  H04N19/119 ,  H04N19/176 ,  H04N19/40 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/91

Abstract: The present invention relates to a video encoding/decoding method and apparatus, and more particularly, to a method and apparatus for generating a reference image for a multiview video. The video encoding method includes, in the presence of a second image having a different view from a first image having a first view, transforming the second image to have the first view, generating a reference image by adding the second image to a side of the first image, and storing the reference image in a reference picture list.

公开(公告)号：US20160381374A1

公开(公告)日：2016-12-29

申请号：US14903117

申请日：2014-04-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Gun BANG ,  Gwang Soon LEE ,  Nam Ho HUR ,  Gwang Hoon PARK ,  Young Su HEO ,  Kyung Yong KIM ,  Yoon Jin LEE

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/597

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: Disclosed are a video encoding/decoding method and apparatus including a plurality of views. The video decoding method including the plurality of views comprises the steps of: inducing basic combination motion candidates for a current Prediction Unit (PU) to configure a combination motion candidate list; inducing expanded combination motion candidates for the current PU when the current PU corresponds to a depth information map or a dependent view; and adding the expanded combination motion candidates to the combination motion candidate list.

Abstract translation: 公开了包括多个视图的视频编码/解码方法和装置。 包括多个视图的视频解码方法包括以下步骤：为当前预测单元（PU）引入基本组合运动候选以配置组合运动候选列表; 当当前PU对应于深度信息图或从属视图时，诱导当前PU的扩展组合运动候选; 以及将所扩展的组合运动候选添加到组合运动候选列表。