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公开(公告)号：US12200221B2
公开(公告)日：2025-01-14
申请号：US18464472
申请日：2023-09-11
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: H04N19/124 , H04N19/105 , H04N19/13 , H04N19/137 , 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.
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公开(公告)号：US12200203B2
公开(公告)日：2025-01-14
申请号：US17879237
申请日：2022-08-02
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC: H04N19/11 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/593
Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current block by using an intra-prediction mode of a neighbor block adjacent to the current block, configuring a reference sample of the current block, and performing intra-prediction on the current block by using the intra-prediction mode and the reference sample, wherein when the intra-prediction mode of the neighbor block is unavailable, the intra-prediction mode of the neighbor block may be replaced with a planar mode.
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公开(公告)号：US12192491B2
公开(公告)日：2025-01-07
申请号：US17616481
申请日：2020-09-21
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Dae Yeon Kim , Ju Ock Lee
IPC: H04N19/169 , H04N19/119 , H04N19/172 , H04N19/593 , H04N19/70
Abstract: An image encoding/decoding method and apparatus are disclosed. The method of decoding an image according to the present invention, comprises, obtaining a single stream including subpicture information of a plurality of subpictures; selecting a subpicture to be extracted from among the plurality of subpictures; determining the single stream as a stream to be extracted and obtaining a sub stream for the subpicture to be extracted from the stream to be extracted, by removing or using at least one piece of subpicture information included in the stream to be extracted.
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4.发明授权公开(公告)号：US12170756B2
公开(公告)日：2024-12-17
申请号：US17277541
申请日：2019-09-18
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.
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5.发明授权公开(公告)号：US12155826B2
公开(公告)日：2024-11-26
申请号：US17779478
申请日：2020-11-23
Inventor： Jin Ho Lee , Jung Won Kang , Soo Woong Kim , Gun Bang , Ha Hyun Lee , Sung Chang Lim
IPC: H04N19/119 , H04N19/103 , H04N19/105 , H04N19/107 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/11 , H04N19/593
Abstract: Disclosed herein are an image encoding/decoding method and apparatus. The image decoding method includes acquiring a partitioning index of a current block from a bitstream, and generating a prediction sample of the current block by weighted-summing a prediction sample of a first subblock of the current block and a prediction sample of a second subblock of the current block based on the partitioning index. The partitioning index indicates a partitioning distance and a partitioning direction included in a predefined table.
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Patent Agency Ranking
公开(公告)号：US12101483B2
公开(公告)日：2024-09-24
申请号：US18087577
申请日：2022-12-22
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Jin Ho Lee , Hui Yong Kim , Dae Yeon Kim , Wook Je Jeong , Hyun Gyu Kim
IPC: H04N19/13 , H04N19/176 , H04N19/70
CPC classification number: H04N19/13 , H04N19/176 , H04N19/70
Abstract: An image decoding method is disclosed in the present specification. A method of decoding an image, the method may comprises determining whether to perform a context update for a first syntax element of a current block, updating, on the basis of the determination, a context for entropy decoding of the first syntax element and generating, on the basis of the updated context, a bin for the first syntax element, and wherein whether to perform the context update is determined on the basis of the number of pre-decoded predetermined syntax elements for the current block.
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公开(公告)号：US12101476B2
公开(公告)日：2024-09-24
申请号：US17778351
申请日：2020-11-23
Inventor： Sung Chang Lim , Jung Won Kang , Soo Woong Kim , Gun Bang , Jin Ho Lee , Ha Hyun Lee
IPC: H04N19/117 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/82
CPC classification number: H04N19/117 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/82
Abstract: The present invention relates to a video decoding method, according to embodiment of the invention, image decoding method comprises, acquiring a reconstructed luma block of a current block, determining whether a cross-component adaptive loop filter is applied to the current block, acquiring a reconstructed chroma block of the current block, to which an adaptive loop filter is applied, when the cross-component adaptive loop filter is applied to the current block and acquiring a final reconstructed chroma block of the current block, to which the cross-component loop filter is applied, using the reconstructed luma block and the reconstructed chroma block, to which the adaptive loop filter is applied.
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8.发明授权公开(公告)号：US12081774B2
公开(公告)日：2024-09-03
申请号：US17614935
申请日：2020-05-29
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim , Jae Gon Kim , Do Hyeon Park , Ji Hoon Do , Yong Uk Yoon
IPC: H04N19/176 , H04N19/119 , H04N19/18 , H04N19/50
CPC classification number: H04N19/176 , H04N19/119 , H04N19/18 , H04N19/50
Abstract: Disclosed herein is a video decoding method including determining a zero-out width threshold and a zero-out height threshold for distinguishing between a transform coefficient coding region and a zero-out region of a current block according to a size of the current block, determining the transform coefficient coding region and the zero-out region of the current block according to the zero-out width threshold and the zero-out height threshold, acquiring transform coefficient information of the transform coefficient coding region from a bitstream and determining a level of a transform coefficient of the transform coefficient coding region according to the transform coefficient information, determining a level of a transform coefficient of the zero-out region as 0 without acquiring transform coefficient information, and reconstructing the current block by inversely transforming the transform coefficient of the current block.
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公开(公告)号：US12081768B2
公开(公告)日：2024-09-03
申请号：US17611871
申请日：2020-06-19
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim , Jae Gon Kim , Do Hyeon Park , Ji Hoon Do , Yong Uk Yoon
IPC: H04N19/14 , H04N19/12 , H04N19/176 , H04N19/60
CPC classification number: H04N19/14 , H04N19/12 , H04N19/176 , H04N19/60
Abstract: Disclosed herein are an image encoding/decoding method and apparatus. The image decoding method of the present disclosure may include obtaining maximum transform block size information, deriving a maximum transform block size on the basis of the maximum transform block size information, and, determining ether or not a secondary inverse transform is applied to the current block on the basis of the maximum transform block size and a horizontal size and a vertical size of a current block.
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公开(公告)号：US12075090B2
公开(公告)日：2024-08-27
申请号：US18164097
申请日：2023-02-03
Inventor： Jin Ho Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Ha Hyun Lee , Jong Ho Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/117 , H04N19/105 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/82 , H04N19/147 , H04N19/182
CPC classification number: H04N19/593 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/44 , H04N19/82 , H04N19/147 , H04N19/182
Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
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