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公开(公告)号：US12041226B2
公开(公告)日：2024-07-16
申请号：US18358871
申请日：2023-07-25
申请人： Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
发明人： Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Jin Ho Lee , Dong San Jun , Hui Yong Kim , Gwang Hoon Park , Jin Soo Choi , Tae Hyun Kim , Dae Young Lee , Young Su Heo
IPC分类号： H04N19/105 , G06T3/02 , G06T5/50 , G06T5/80 , G06T7/246 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/174
CPC分类号： H04N19/105 , G06T5/50 , G06T5/80 , G06T7/248 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/51 , H04N19/521 , G06T3/02 , H04N19/174
摘要： The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
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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
发明人： 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分类号： H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
CPC分类号： H04N19/513 , H04N19/426 , H04N19/44 , H04N19/61
摘要： 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：US12010312B2
公开(公告)日：2024-06-11
申请号：US18160976
申请日：2023-01-27
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Hui Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Gwang Hoon Park , Kyung Yong Kim
IPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
CPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
摘要： A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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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
发明人： Jin Ho Lee , Jung Won Kang , Ha Hyun Lee , Sung Chang Lim , Hui Yong Kim
IPC分类号： H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
CPC分类号： H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
摘要： 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：US11943436B2
公开(公告)日：2024-03-26
申请号：US17676698
申请日：2022-02-21
发明人： Sung Chang Lim , Jung Won Kang , Ha Hyun Lee , Dong San Jun , Hyun Suk Ko , Jin Ho Lee , Hui Yong Kim
IPC分类号： H04N19/00 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/82
CPC分类号： H04N19/117 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/82
摘要： 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
发明人： 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分类号： H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
CPC分类号： H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
摘要： 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：US11778189B2
公开(公告)日：2023-10-03
申请号：US17565976
申请日：2021-12-30
发明人： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC分类号： H04N19/126 , H04N19/159 , H04N19/61 , H04N19/196 , H04N19/70 , H04N19/50 , H04N19/463 , H04N19/176
CPC分类号： H04N19/126 , H04N19/159 , H04N19/196 , H04N19/198 , H04N19/463 , H04N19/50 , H04N19/61 , H04N19/70 , H04N19/176
摘要： 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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28.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
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： 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分类号： H04N19/593 , H04N19/50 , H04N19/132 , H04N19/46 , H04N19/11 , H04N19/147 , H04N19/169 , H04N19/176
CPC分类号： H04N19/50 , H04N19/11 , H04N19/132 , H04N19/147 , H04N19/169 , H04N19/176 , H04N19/46 , H04N19/593
摘要： 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：US11765356B2
公开(公告)日：2023-09-19
申请号：US17828745
申请日：2022-05-31
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Hui Yong Kim , Sung Chang Lim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Gwang Hoon Park , Kyung Yong Kim
IPC分类号： H04N19/119 , H04N19/129 , H04N19/176 , H04N19/70 , H04N19/122 , H04N19/159 , H04N19/136 , H04N19/61 , H04N19/593 , H04N19/625 , H04N19/124 , H04N19/157 , H04N19/44
CPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
摘要： A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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公开(公告)号：US11677942B2
公开(公告)日：2023-06-13
申请号：US17510560
申请日：2021-10-26
发明人： Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Jae Gon Kim , Sang Yong Lee
IPC分类号： H04N19/119 , H04N19/105 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70 , H04N19/91 , H04N19/147
CPC分类号： H04N19/119 , H04N19/105 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/593 , H04N19/70 , H04N19/91 , H04N19/147
摘要： 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).
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