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公开(公告)号：US12028545B2
公开(公告)日：2024-07-02
申请号：US17538797
申请日：2021-11-30
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Dong San Jun , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
CPC classification number: H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
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公开(公告)号：US11979555B2
公开(公告)日：2024-05-07
申请号：US17418514
申请日：2019-12-27
Inventor： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: Disclosed herein is a method of decoding an image including deriving intra prediction mode of a current block using an intra prediction mode of a neighbor block adjacent to the current block, constructing a reference sample of the current block, and performing intra prediction with respect to the current block using the intra prediction mode of the current block and the reference sample. The deriving of the intra prediction mode of the current block includes constructing a most probable mode (MPM) list based on whether the intra prediction mode of the current block is a Planar mode.
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公开(公告)号：US11949890B2
公开(公告)日：2024-04-02
申请号：US17951797
申请日：2022-09-23
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/124 , H04N19/13 , H04N19/169 , H04N19/182 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/503 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91
CPC classification number: H04N19/187 , H04N19/124 , H04N19/13 , H04N19/182 , H04N19/188 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91 , H04N19/33 , H04N19/503
Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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公开(公告)号：US11943436B2
公开(公告)日：2024-03-26
申请号：US17676698
申请日：2022-02-21
Inventor： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Dong San Jun , Hyun Suk Ko , Jin Ho Lee , Hui Yong Kim
IPC: H04N19/00 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/82
CPC classification number: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/82
Abstract: The present it relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise c coding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
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公开(公告)号：US11805243B2
公开(公告)日：2023-10-31
申请号：US17474514
申请日：2021-09-14
Inventor： Sung Chang Lim , Jong Ho Kim , Hae Chui 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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Patent Agency Ranking
76.发明授权公开(公告)号：US11770550B2
公开(公告)日：2023-09-26
申请号：US16533921
申请日：2019-08-07
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Sung Chang Lim , Hae Chul Choi , Se Yoon Jeong , Suk Hee Cho , Hui Yong Kim , Jin Ho Lee , Ha Hyun Lee , Jong Ho Kim , Jin Soo Choi , Jin Woong Kim , Gwang Hoon Park , Kyung Yong Kim , Dong Gyu Sim , Seoung Jun Oh
IPC: H04N19/593 , H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176
CPC classification number: H04N19/50 , H04N19/11 , H04N19/132 , H04N19/147 , H04N19/169 , H04N19/176 , H04N19/46 , H04N19/593
Abstract: Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not.
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公开(公告)号：US11676334B2
公开(公告)日：2023-06-13
申请号：US17111234
申请日：2020-12-03
Applicant: Electronics and Telecommunications Research Institute , HANDONG GLOBAL UNIVERCITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Ha Hyun Lee , Jung Won Kang , Soo Woong Kim , Gun Bang , Jin Ho Lee , Sung Chang Lim , Sung Soo Hwang , Se Hui Kang , Ji Won Moon , Mu Hyun Back , Jin Kyu Lee , Hyun Min Han
Abstract: The present invention relates to a plenoptic cloud generation method, the method of generating a plenoptic point cloud according to one embodiment of the present invention, the method comprises, obtaining a two-dimensional (2D) image for each view and depth information obtained from a plurality of cameras, determining a method of generating a plenoptic point cloud and generating the plenoptic point cloud by applying the determined method of generating the plenoptic point cloud to at least one of the 2D image for each view or the depth information, wherein the method of generating the plenoptic point cloud includes at least one of a simultaneous generation method of the point cloud and a sequential generation method of the point cloud.
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公开(公告)号：US11671603B2
公开(公告)日：2023-06-06
申请号：US17419220
申请日：2019-12-27
Applicant: Electronics and Telecommunications Research Institute , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Ha Hyun Lee , Jung Won Kang , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim , Hae Chul Choi , Dae Hyeok Gwon , Jae Ryun Choi
IPC: H04N19/00 , H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176
CPC classification number: H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176
Abstract: Disclosed herein is a method of decoding an image. The method includes determining a prediction mode of a current block as a merge mode with motion vector difference (MMVD), deriving a merge candidate list of the current block, deriving a motion vector predictor of the current block using the merge candidate list, deriving a motion vector difference of the current block, and deriving a motion vector of the current block using the motion vector predictor and the motion vector difference. Only some of candidates in the merge candidate list are used to derive the motion vector predictor.
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79.发明授权公开(公告)号：US11616946B2
公开(公告)日：2023-03-28
申请号：US17278212
申请日：2019-09-20
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 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/51
Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise deriving a candidate list for inter-prediction of a current block, deriving motion information of the current block by using the candidate list, deriving a cumulative coding information candidate by using the motion information of the current block, inserting the derived cumulative coding information candidate into a cumulative coding information candidate list and updating the candidate list by using the cumulative coding information candidate list, wherein the updated candidate list is used for inter-prediction of a block to be decoded after the current block.
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公开(公告)号：US11563954B2
公开(公告)日：2023-01-24
申请号：US16758121
申请日：2018-10-26
Inventor： Dong San Jun , Ha Hyun Lee , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Lee , Hui Yong Kim
IPC: H04N19/119 , H04N19/176 , H04N19/159 , H04N19/44
Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise dividing a coding unit into a plurality of sub-units according to a block division structure and performing decoding based on the sub-unit, wherein the block division structure is a block division structure in which division is performed so as to include at least one sub-unit having a predetermined block form other than square and rectangle forms.
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