公开(公告)号：US11190767B2

公开(公告)日：2021-11-30

申请号：US16877807

申请日：2020-05-19

申请人： Electronics and Telecommunications Research Institute

发明人： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jae Gon Kim ,  Sang Yong Lee

IPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/196 ,  H04N19/593 ,  H04N19/132 ,  H04N19/157 ,  H04N19/91 ,  H04N19/147

摘要： The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).

公开(公告)号：US11184609B2

公开(公告)日：2021-11-23

申请号：US16471071

申请日：2018-01-02

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： 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分类号： H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： 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

申请人： Electronics and Telecommunications Research Institute

发明人： 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分类号： H04N19/11 ,  H04N19/96 ,  H04N19/176 ,  H04N19/184 ,  H04N19/159 ,  H04N19/105 ,  H04N19/593

摘要： 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

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

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

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

摘要： 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：US11032559B2

公开(公告)日：2021-06-08

申请号：US16883293

申请日：2020-05-26

申请人： Electronics and Telecommunications Research Institute

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

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

摘要： 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：US10924742B2

公开(公告)日：2021-02-16

申请号：US16589276

申请日：2019-10-01

申请人： Electronics and Telecommunications Research Institute

发明人： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/126 ,  H04N19/176 ,  H04N19/70 ,  H04N19/129 ,  H04N19/61 ,  H04N19/463 ,  H04N19/18 ,  H04N19/44 ,  H04N19/60 ,  H04N19/96

摘要： A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients.

公开(公告)号：US10911756B2

公开(公告)日：2021-02-02

申请号：US16342310

申请日：2017-10-23

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY ,  HANBAT NATIONAL UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION

发明人： 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分类号： H04N19/46 ,  H04N19/176 ,  H04N19/119 ,  H04N19/105 ,  H04N19/186

摘要： 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：US10757444B2

公开(公告)日：2020-08-25

申请号：US16133303

申请日：2018-09-17

申请人： Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

发明人： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/577 ,  H04N19/503 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/109 ,  H04N19/52 ,  H04N19/119 ,  H04N19/61 ,  H04N19/107 ,  H04N19/82

摘要： According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.

公开(公告)号：US10757443B2

公开(公告)日：2020-08-25

申请号：US16133133

申请日：2018-09-17

申请人： Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

发明人： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC分类号： H04N19/577 ,  H04N19/503 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/109 ,  H04N19/52 ,  H04N19/119 ,  H04N19/61 ,  H04N19/107 ,  H04N19/82

摘要： According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.

公开(公告)号：US10735752B2

公开(公告)日：2020-08-04

申请号：US15997106

申请日：2018-06-04

申请人： Electronics and Telecommunications Research Institute

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

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

摘要： 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.