公开(公告)号：US20160191915A1

公开(公告)日：2016-06-30

申请号：US15060051

申请日：2016-03-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Jae Gon KIM ,  Sang Yong LEE

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/70 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/91 ,  H04N19/157

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/132 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91

Abstract: 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).

Abstract translation: 本发明涉及视频编码/解码方法和装置，其中根据本发明的视频编码方法包括以下步骤：获取外围块的信息; 基于外围块的信息设置关于当前块的信息; 以及基于所设置的信息对当前块进行编码，其中当前块和外围块可以是CU（编码单元）。

公开(公告)号：US20150334396A1

公开(公告)日：2015-11-19

申请号：US14373270

申请日：2013-01-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/126 ,  H04N19/61 ,  H04N19/196 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/126 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/198 ,  H04N19/463 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70

Abstract: The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.

Abstract translation: 本发明涉及一种用于对量化矩阵进行编码和解码的方法及其使用方法，根据本发明的用于编码量化矩阵的方法包括以下步骤：确定用于量化和量化的量化矩阵; 确定用于量化矩阵的量化的预测方法; 以及基于所确定的预测方法编码量化矩阵信息，其中所述预测方法可以是量化矩阵中的系数之间的预测方法或量化矩阵的副本。

公开(公告)号：US20150117521A1

公开(公告)日：2015-04-30

申请号：US14525626

申请日：2014-10-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Se Yoon JEONG ,  Jong Ho KIM ,  Hui Yong KIM ,  Dae Yeol LEE ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/186 ,  H04N19/61 ,  H04N19/176 ,  H04N19/50 ,  H04N19/124

CPC classification number: H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

Abstract: The present invention provides an image encoding apparatus carrying out inter-color prediction, comprising a residual block acquisition module obtaining a residual block with respect to a first color component and a residual block with respect to a second color component from a difference between an input block and a prediction block; an inter-color component prediction module carrying out inter-color component prediction by generating a residual signal reflecting a difference between a residual block with respect to the first color component and a residual block with respect to the second color component; a transform module generating a transformat coefficient by carrying out transformation with respect to the residual signal; a quantization module generating quantized data by carrying out quantization with respect to the transform coefficient; and an entropy encoding module carrying out entropy encoding by removing statistical redundancy of the quantized data.

Abstract translation: 本发明提供一种执行彩色间预测的图像编码装置，包括：残差块获取模块，根据输入块之间的差异获得关于第一颜色分量的残差块和相对于第二颜色分量的残差块 和预测块; 颜色分量预测模块，通过产生反映相对于所述第一颜色分量的残差块和相对于所述第二颜色分量的残差块之间的差异的残差信号来执行颜色间分量预测; 变换模块，通过对残差信号进行变换来生成变换系数; 量化模块，通过对变换系数进行量化，生成量化数据; 以及通过去除量化数据的统计冗余来执行熵编码的熵编码模块。

公开(公告)号：US20140192873A1

公开(公告)日：2014-07-10

申请号：US14202943

申请日：2014-03-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Ho LEE ,  Hui Yong KIM ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/593

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/136 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/80 ,  H04N19/82 ,  H04N19/96

Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.

公开(公告)号：US20250133239A1

公开(公告)日：2025-04-24

申请号：US19005435

申请日：2024-12-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Hyun Suk KO ,  Jin Ho LEE ,  Dong San JUN ,  Ha Hyun LEE ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI ,  Yung Lyul LEE ,  Jun Woo CHOI

IPC: H04N19/91 ,  H04N19/146 ,  H04N19/149 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44

Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.

公开(公告)号：US20250106389A1

公开(公告)日：2025-03-27

申请号：US18976452

申请日：2024-12-11

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

Inventor： 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: H04N19/105 ,  H04N19/103 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52

Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.

公开(公告)号：US20250097430A1

公开(公告)日：2025-03-20

申请号：US18968618

申请日：2024-12-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Hyun Suk KO ,  Jin Ho LEE ,  Ha Hyun LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Jin Soo CHOI

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/13 ,  H04N19/146 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/513 ,  H04N19/91

Abstract: The present invention relates to a video encoding and decoding method. A video decoding method for the same may include: obtaining granularity information; determining a sharing region based on the granularity information; and generating a prediction block of a current block by using motion information of the sharing region when the current block corresponds to the sharing region.

公开(公告)号：US20250080723A1

公开(公告)日：2025-03-06

申请号：US18951139

申请日：2024-11-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Ho LEE ,  Jung Won KANG ,  Ha Hyun LEE ,  Sung Chang LIM ,  Hui Yong KIM

IPC: H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: Provided are an image encoding/decoding method and device. An image decoding method according to the present invention comprises the steps of: determining an intra prediction mode of a current block; and generating a prediction block of the current block by performing prediction on the basis of the intra prediction mode of the current block. An intra prediction mode for a luminance block of the current block is derived by means of a most probable mode (MPM) list comprises a plurality of MPM candidates. The MPM list can be constructed independently from as to whether a plurality of reference sample lines are used and whether a divided prediction is performed by means of a sub-block.

公开(公告)号：US20250080721A1

公开(公告)日：2025-03-06

申请号：US18949948

申请日：2024-11-15

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

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

Abstract: Disclosed herein is an image encoding/decoding method. The method of decoding the image includes structuring a motion information candidate list of a current block, selecting a first motion information candidate used for prediction of a first subblock in the current block from the motion information candidate list, selecting a second motion information candidate used for prediction of a second subblock in the current block from the motion information candidate list, generating a prediction sample of the first subblock by performing inter prediction with respect to the first subblock based on the first motion information candidate, and generating a prediction sample of the second subblock by performing inter prediction with the second subblock based on the second motion information candidate. The first and second motion information candidates are any one of candidates in first and second prediction directions in the motion information candidate list, respectively.

公开(公告)号：US20250047837A1

公开(公告)日：2025-02-06

申请号：US18923584

申请日：2024-10-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Hui Yong KIM

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/51 ,  H04N19/96

Abstract: An image encoding/decoding method is disclosed. Present invention of the method of decoding an image comprises deriving motion information of a current block by using a candidate list, generating a prediction block of the current block by using the motion information of the current block and adding the motion information of the current block in the candidate list, wherein the candidate list is used for inter prediction of a block to be decoded after the current block.