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111.发明授权公开(公告)号：US11743486B2
公开(公告)日：2023-08-29
申请号：US17525053
申请日：2021-11-12
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
CPC classification number: 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.
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公开(公告)号：US11689742B2
公开(公告)日：2023-06-27
申请号：US17221229
申请日：2021-04-02
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/593 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80 , H04N19/176 , H04N19/96
CPC classification number: H04N19/593 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/182 , H04N19/44 , H04N19/80 , H04N19/82 , H04N19/176 , 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.
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公开(公告)号：US11689728B2
公开(公告)日：2023-06-27
申请号：US17503570
申请日：2021-10-18
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin woong Kim , Jae Gon Kim , Hae Chul Choi , Sang Yong Lee
IPC: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.
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公开(公告)号：US11689720B2
公开(公告)日：2023-06-27
申请号：US17277512
申请日：2019-09-19
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim
IPC: H04N19/119 , H04N19/176 , H04N19/96
CPC classification number: H04N19/119 , H04N19/176 , H04N19/96
Abstract: There is provided a method and apparatus of encoding/decoding an image. The method comprises decoding information on block partitioning of a current block included in a current picture from a bitstream; determining a partitioning method of the current block on the basis of the information; and partitioning the current block by using the determined partitioning method, wherein the partitioning method is determined on the basis of whether or not the current block includes a predetermined boundary.
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115.发明授权公开(公告)号：US11677940B2
公开(公告)日：2023-06-13
申请号：US16648470
申请日：2018-09-20
Inventor： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Jin Ho Lee , Ha Hyun Lee , Dong San Jun , Hui Yong Kim
IPC: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/169 , H04N19/46 , H04N19/96
CPC classification number: H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/46 , H04N19/96
Abstract: The present invention relates to an image encoding/decoding method. The image decoding method includes splitting a coding tree unit (CTU) into at least one coding unit (CU) according to a block splitting structure and performing CU-based decoding, in which the block partition structure is configured such that at least one of binary tree splitting and ternary tree splitting is performed after quadtree splitting is performed.
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Patent Agency Ranking
公开(公告)号：US11647184B2
公开(公告)日：2023-05-09
申请号：US17711230
申请日：2022-04-01
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Hui Yong Kim , Gwang Hoon Park , Kyung Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/12 , H04N19/11 , H04N19/176 , H04N19/129 , H04N19/186 , H04N19/159 , H04N19/18 , H04N19/61 , H04N19/96
CPC classification number: H04N19/11 , H04N19/12 , H04N19/129 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/61 , H04N19/96
Abstract: The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block, wherein the step of scanning the residual signal can determine a scanning type for a luminance signal and a chroma signal of the current block according to an intra prediction mode for a luminance sample of the current block.
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公开(公告)号：US11627325B2
公开(公告)日：2023-04-11
申请号：US17720646
申请日：2022-04-14
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Ha Hyun Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/159 , H04N19/105 , H04N19/117 , H04N19/126 , H04N19/13 , H04N19/43 , H04N19/50 , H04N19/593 , H04N19/61 , H04N19/176 , H04N19/182
Abstract: An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.
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公开(公告)号：US11553183B2
公开(公告)日：2023-01-10
申请号：US17144477
申请日：2021-01-08
Inventor： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/126 , H04N19/176 , H04N19/70 , H04N19/129 , H04N19/61 , H04N19/463 , H04N19/18 , H04N19/44 , H04N19/60 , H04N19/96
Abstract: 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.
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公开(公告)号：US11516496B2
公开(公告)日：2022-11-29
申请号：US16982972
申请日：2019-03-21
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim
IPC: H04N19/96 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/423 , H04N19/513
Abstract: The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.
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公开(公告)号：US11503282B2
公开(公告)日：2022-11-15
申请号：US17163218
申请日：2021-01-29
Inventor： Ha Hyun Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Jin Ho Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/61 , H04N19/159 , H04N19/107 , H04N19/70 , H04N19/593 , H04N19/176 , H04N19/196 , H04N19/13 , H04N19/157 , H04N19/169 , H04N19/11 , H04N19/50 , H04N19/137 , H04N19/513 , H04N19/105 , H04N19/109 , H04N19/52 , H04N19/91
Abstract: Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.
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