公开(公告)号：US11184609B2

公开(公告)日：2021-11-23

申请号：US16471071

申请日：2018-01-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Suk Ko ,  Sung Chang Lim ,  Jung Won Kang ,  Dong San Jun ,  Seung Hyun Cho ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

公开(公告)号：US11128861B2

公开(公告)日：2021-09-21

申请号：US16099639

申请日：2017-06-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Suk Ko ,  Jin Ho Lee ,  Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/11 ,  H04N19/96 ,  H04N19/176 ,  H04N19/184 ,  H04N19/159 ,  H04N19/105 ,  H04N19/593

Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.

公开(公告)号：US11109032B2

公开(公告)日：2021-08-31

申请号：US16494027

申请日：2018-02-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHIPS & MEDIA, INC.

Inventor： Dae Yeon Kim ,  Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Hui Yong Kim

IPC: H04N19/13 ,  H04N19/103 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70

Abstract: According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.

公开(公告)号：US20210176481A1

公开(公告)日：2021-06-10

申请号：US17174843

申请日：2021-02-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/187 ,  H04N19/70 ,  H04N19/61 ,  H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/169 ,  H04N19/124 ,  H04N19/13 ,  H04N19/52 ,  H04N19/593 ,  H04N19/80 ,  H04N19/91 ,  H04N19/182

Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.

公开(公告)号：US11032559B2

公开(公告)日：2021-06-08

申请号：US16883293

申请日：2020-05-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N7/12 ,  H04N19/33 ,  H04N19/597 ,  H04N19/30

Abstract: Disclosed is technology associated with video encoding and decoding having a structure including one or more layers (quality, spatial, and view) and technology associated with a method that predicts an higher layer signal by using one or more reference layers in encoding and decoding an higher layer. In more detail, an interlayer prediction is capable of being performed by considering a characteristic of each layer by separating a spatial and quality reference layer list constituted by spatial and quality layers to be referred at the same view as a target layer and a view reference layer list constituted by the same spatial and quality layers as a target layer in encoding and decoding encoding and decoding pictures of an higher layer in encoding and decoding encoded and decoded pictures of the higher layer to improve encoding and decoding efficiency.

公开(公告)号：US10911756B2

公开(公告)日：2021-02-02

申请号：US16342310

申请日：2017-10-23

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 ,  Hyun Suk Ko ,  Sung Chang Lim ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Hae Chul Choi ,  Aram Back ,  Jin Soo Choi ,  Jae Gon Kim

IPC: H04N19/46 ,  H04N19/176 ,  H04N19/119 ,  H04N19/105 ,  H04N19/186

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.

公开(公告)号：US10819991B2

公开(公告)日：2020-10-27

申请号：US16166712

申请日：2018-10-22

Applicant: Electronics and Telecommunications Research Institute ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Ha Hyun Lee ,  Jung Won Kang ,  Jin Soo Choi ,  Jin Woong Kim ,  Dong Gyu Sim ,  Hyo Min Choi ,  Jung Hak Nam

IPC: H04N19/11 ,  H04N19/30 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/503 ,  H04N19/59 ,  H04N19/103 ,  H04N19/36

Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.

公开(公告)号：US10735752B2

公开(公告)日：2020-08-04

申请号：US15997106

申请日：2018-06-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N7/12 ,  H04N19/33 ,  H04N19/597 ,  H04N19/30

Abstract: Disclosed is technology associated with video encoding and decoding having a structure including one or more layers (quality, spatial, and view) and technology associated with a method that predicts an higher layer signal by using one or more reference layers in encoding and decoding an higher layer. In more detail, an interlayer prediction is capable of being performed by considering a characteristic of each layer by separating a spatial and quality reference layer list constituted by spatial and quality layers to be referred at the same view as a target layer and a view reference layer list constituted by the same spatial and quality layers as a target layer in encoding and decoding encoding and decoding pictures of an higher layer in encoding and decoding encoded and decoded pictures of the higher layer to improve encoding and decoding efficiency.

公开(公告)号：US10728541B2

公开(公告)日：2020-07-28

申请号：US15954432

申请日：2018-04-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Jong Ho Kim ,  Hae Chul Choi ,  Hui Yong Kim ,  Ha Hyun Lee ,  Jin Ho Lee ,  Se Yoon Jeong ,  Suk Hee Cho ,  Jin Soo Choi ,  Jin Woo Hong ,  Jin Woong Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/105 ,  H04N19/503 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/11 ,  H04N19/157

Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.

公开(公告)号：US10708614B2

公开(公告)日：2020-07-07

申请号：US16456629

申请日：2019-06-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Hui Yong Kim ,  Se Yoon Jeong ,  Suk Hee Cho ,  Jong Ho Kim ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn

IPC: H04N19/52

Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.