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191.发明授权公开(公告)号：US11831910B2
公开(公告)日：2023-11-28
申请号：US16640129
申请日：2018-08-20
Inventor： Hyun Suk Ko , Ha Hyun Lee , Sung Chang Lim , Jung Won Kang , Jin Ho Lee , Dong San Jun , Hui Yong Kim
IPC: H04N19/593 , H04N19/11 , H04N19/176
CPC classification number: H04N19/593 , H04N19/11 , H04N19/176
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise reconstructing an intra prediction mode of a current block, determining a reference sample for intra prediction of the current block, and generating a prediction block of the current block by performing the intra prediction on the current block on the basis of the intra prediction mode and the reference sample. The determining of the reference sample or the intra prediction may be performed on the basis of a shape of the current block.
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公开(公告)号：US11812012B2
公开(公告)日：2023-11-07
申请号：US17474517
申请日：2021-09-14
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: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
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.
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公开(公告)号：US11778206B2
公开(公告)日：2023-10-03
申请号：US16656359
申请日：2019-10-17
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/176 , H04N19/105 , H04N19/52 , H04N19/70 , H04N19/463 , H04N19/33 , H04N19/31
CPC classification number: H04N19/187 , H04N19/105 , H04N19/176 , H04N19/31 , H04N19/33 , H04N19/463 , H04N19/52 , H04N19/70
Abstract: Disclosed are a method and an apparatus for image encoding/decoding that support a plurality of layers. The method for image decoding that supports a plurality of layers includes decoding information of a first layer which a picture of a second layer including a current decoding target block refers to; mapping the information of the first layer to a picture size of the second layer, configuring a reference picture list for the picture of the second layer by adding the mapped information of the first layer and generating prediction samples of the current decoding target block by predicting the current decoding target block of the second layer based on the reference picture list, and the information of the first layer includes at least one of a sample value and motion information of the first layer picture.
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公开(公告)号：US11743470B2
公开(公告)日：2023-08-29
申请号：US17511826
申请日：2021-10-27
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Dong San Jun , Hyun Suk Ko , Jin Ho Lee , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/139 , H04N19/117 , H04N19/51 , H04N19/105 , H04N19/50 , H04N19/52 , H04N19/124 , H04N19/91
CPC classification number: H04N19/139 , H04N19/117 , H04N19/124 , H04N19/51 , H04N19/52 , H04N19/91
Abstract: The present invention relates to a method of performing motion compensation by using motion vector prediction. To this end, a method of decoding an image may include: generating multiple motion vector candidate lists according to an inter-prediction direction of a current block; deriving multiple motion vectors for the current block by using the multiple motion vector candidate lists; determining multiple prediction blocks for the current block by using the multiple motion vectors; and obtaining a final prediction block for the current block based on the multiple prediction blocks.
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公开(公告)号：US11736696B2
公开(公告)日：2023-08-22
申请号：US17565968
申请日：2021-12-30
Inventor： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/126 , H04N19/159 , H04N19/61 , H04N19/196 , H04N19/70 , H04N19/50 , H04N19/463 , H04N19/176
CPC classification number: H04N19/126 , H04N19/159 , H04N19/196 , H04N19/198 , H04N19/463 , H04N19/50 , H04N19/61 , H04N19/70 , H04N19/176
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.
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Patent Agency Ranking
公开(公告)号：US11729380B2
公开(公告)日：2023-08-15
申请号：US17567632
申请日：2022-01-03
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/11 , H04N19/107 , H04N19/176 , H04N19/184 , H04N19/44 , H04N19/91
CPC classification number: H04N19/11 , H04N19/107 , H04N19/176 , H04N19/184 , H04N19/44 , H04N19/91
Abstract: An image decoding method, according to the present invention, includes the steps of: deriving an MPM candidate mode from neighboring blocks adjacent to a target block to be decoded; generating an MPM list using the MPM candidate mode derived from the neighboring blocks; and deriving an intra prediction mode for the target block to be decoded using the generated MPM list. According to the present invention, image compression efficiency can be improved.
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公开(公告)号：US11711523B2
公开(公告)日：2023-07-25
申请号：US17526365
申请日：2021-11-15
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: H04N19/00 , H04N19/159 , H04N19/52 , H04N19/436 , H04N19/593 , H04N19/503 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/51 , H04N19/61 , H04N19/176
CPC classification number: H04N19/159 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/436 , H04N19/503 , H04N19/51 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/176
Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
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198.发明授权公开(公告)号：US11706430B2
公开(公告)日：2023-07-18
申请号：US17540290
申请日：2021-12-02
Applicant: Electronics and Telecommunications Research Institute , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Ho Kim , Hui Yong Kim , Se Yoon Jeong , Sung Chang Lim , Ha Hyun Lee , Jin Ho Lee , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn , Mun Churl Kim , Bum Shik Lee
CPC classification number: H04N19/44 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/64 , H04N19/70
Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
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公开(公告)号：US11683475B2
公开(公告)日：2023-06-20
申请号：US17315637
申请日：2021-05-10
Inventor： Dong San Jun , Jung Won Kang , Sung Chang Lim , Hyun Suk Ko , Jin Ho Lee , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/147 , H04N19/573
CPC classification number: H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/573
Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
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公开(公告)号：US11616976B2
公开(公告)日：2023-03-28
申请号：US16620545
申请日：2018-06-05
Inventor： Sung Chang Lim , Jung Won Kang , Hyun Suk Ko , Dong San Jun , Jin Ho Lee , Ha Hyun Lee , Hui Yong Kim
IPC: H04N19/523 , H04N19/176 , H04N19/124 , H04N19/13
Abstract: Disclosed is an image encoding method. The method includes deriving a motion refinement candidate from among motion information of spatial neighboring blocks, motion information of a temporal neighboring blocks, predefined motion information, and motion information that most frequently occurs in a reference picture, performing a motion information refinement on the derived motion refinement candidate, and generating a prediction block of a current block by using the motion refinement candidate having undergone the motion information refinement.
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