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公开(公告)号：US12034924B2
公开(公告)日：2024-07-09
申请号：US17967542
申请日：2022-10-17
发明人： Woong-il Choi , Sun-il Lee , Ki-ho Choi
IPC分类号： H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176
CPC分类号： H04N19/117 , H04N19/105 , H04N19/159 , H04N19/176
摘要： Provided is a video decoding method of applying a deblocking filter to neighboring pixels adjacent to a boundary of a current block, the video decoding method including selecting a deblocking filter to be applied to the neighboring pixels from among a plurality of deblocking filters according to pixel values of the neighboring pixels and a size of the current block, and applying the selected deblocking filter to the neighboring pixels, wherein the plurality of deblocking filters include three or more deblocking filters having different ranges of neighboring pixels to which deblocking filtering is applied.
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公开(公告)号：US10764595B2
公开(公告)日：2020-09-01
申请号：US16007375
申请日：2018-06-13
发明人： Sun-il Lee , Won Woo Ro , Kyungah Kim , Minsik Kim , Chan-yul Kim
IPC分类号： H04N11/02 , H04N19/436 , H04N19/46 , H04N19/172 , H04N19/44 , H04N19/176 , H04N19/119 , H04N19/14
摘要： Provided is an image encoding method including extracting feature points from a picture; generating at least two clusters by performing feature point clustering on the extracted feature points; determining at least two split sections in the picture, the at least two split sections respectively corresponding to the at least two clusters; parallel-encoding the at least two split sections; and generating a bitstream including information about the at least two split sections. A size and a shape of each of the at least two split sections may be individually determined.
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公开(公告)号：US10212452B2
公开(公告)日：2019-02-19
申请号：US15586935
申请日：2017-05-04
发明人： Jung-hye Min , Sun-il Lee , Woo-jin Han
IPC分类号： H04N7/00 , H04N19/105 , H04N19/593 , H04N19/176 , H04N19/11 , H04N19/14 , H04N19/167 , H04N19/182 , H04N19/196 , H04N19/513 , H04N19/80 , H04N19/91 , H04N19/82
摘要： An apparatus for decoding an image, the apparatus including an entropy decoder configured to extract an intra prediction mode of a current block, and an intra prediction performer configured to determine a number of neighboring pixels located on a left side of the current block or an upper side of the current block, determine a location of one or more neighboring pixels, the intra prediction mode indicating a particular direction among a plurality of directions, the particular direction being indicated by using one of a dx number in a horizontal direction and a fixed number in a vertical direction, and the location of the one or more neighboring pixels being determined based on a shift operation.
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公开(公告)号：US10158890B2
公开(公告)日：2018-12-18
申请号：US15625709
申请日：2017-06-16
发明人： Woong-Il Choi , Woo-jin Han , Tammy Lee , Sun-il Lee
IPC分类号： H04N19/91 , H04N19/30 , H04N19/70 , H04N19/176
摘要： Entropy encoding and entropy decoding of image data are respectively performed whereby context modeling is performed on a context unit of blocks of the image data based on a context model of a previously encoded or decoded block.
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公开(公告)号：US10110894B2
公开(公告)日：2018-10-23
申请号：US15869809
申请日：2018-01-12
发明人： Il-koo Kim , Jung-hye Min , Hae-kyung Jung , Sun-il Lee , Min-su Cheon
IPC分类号： H04N19/103 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/172 , H04N19/46 , H04N19/122 , H04N19/61 , H04N19/96 , H04N19/132 , H04N19/196 , H04N19/597
摘要： A method of encoding a video includes: splitting a picture into a maximum coding unit; for the maximum coding unit, determining coding units having a tree structure including coding units of coded depths and determining encoding modes for the coding units of the coded depths by performing encoding based on coding units according to depths, the coding units according to depths obtained by hierarchically splitting the maximum coding unit as a depth deepens; and outputting information about a maximum coding unit size and, for the maximum coding unit, information indicating an order of split information and skip mode information which is selectively determined for the coding units according to depths, information about the encoding modes for the coding units of the coded depths including the split information and the skip mode information which are arranged according to the order, and encoded video data.
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公开(公告)号：US09654797B2
公开(公告)日：2017-05-16
申请号：US14627810
申请日：2015-02-20
发明人： Jung-hye Min , Sun-il Lee , Woo-jin Han
IPC分类号： H04N7/32 , H04N19/593 , H04N19/105 , H04N19/176 , H04N19/11 , H04N19/14 , H04N19/167 , H04N19/182 , H04N19/196 , H04N19/513 , H04N19/80 , H04N19/91
CPC分类号： H04N19/593 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/167 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/513 , H04N19/80 , H04N19/91
摘要： A method for decoding an image, the method including extracting an intra prediction mode of a current block, determining a number of neighboring pixels located on a left side of the current block or an upper side of the current block, and determining a location of one or more neighboring pixels, the intra prediction mode indicating a particular direction among a plurality of directions, the particular direction being indicated by using one of a dx number in a horizontal direction and a fixed number in a vertical direction, and the location of the one or more neighboring pixels being determined based on a shift operation.
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公开(公告)号：US09407916B2
公开(公告)日：2016-08-02
申请号：US14643424
申请日：2015-03-10
发明人： Sun-il Lee , Hae-kyung Jung , Min-su Cheon
IPC分类号： H04N19/122 , H04N19/12 , H04N19/176 , H04N19/13 , H04N19/157 , H04N19/18 , H04N19/196 , H04N19/91 , H04N19/192 , H04N19/149 , H04N19/70
CPC分类号： H04N19/12 , H04N19/122 , H04N19/13 , H04N19/149 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/192 , H04N19/196 , H04N19/70 , H04N19/91
摘要： Provided are a method and a device for encoding a video by using a data unit of a hierarchical structure, and a method and a device for decoding the same. A video encoding device includes: a hierarchical encoder configured to encode a picture of a video based on a data unit of a hierarchical structure; and an entropy coder configured to determine a context model used for entropy coding of a symbol based on hierarchical information of a data unit to which the symbol of the encoded picture belongs, and to entropy encode the symbol using the determined context model.
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公开(公告)号：US09313507B2
公开(公告)日：2016-04-12
申请号：US14643511
申请日：2015-03-10
发明人： Sun-il Lee , Hae-kyung Jung , Min-su Cheon
IPC分类号： H04N19/12 , H04N19/157 , H04N19/18 , H04N19/13 , H04N19/176 , H04N19/196 , H04N19/91 , H04N19/192 , H04N19/122 , H04N19/149 , H04N19/70
CPC分类号： H04N19/12 , H04N19/122 , H04N19/13 , H04N19/149 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/192 , H04N19/196 , H04N19/70 , H04N19/91
摘要： Provided are a method and a device for encoding a video by using a data unit of a hierarchical structure, and a method and a device for decoding the same. A video encoding device includes: a hierarchical encoder configured to encode a picture of a video based on a data unit of a hierarchical structure; and an entropy coder configured to determine a context model used for entropy coding of a symbol based on hierarchical information of a data unit to which the symbol of the encoded picture belongs, and to entropy encode the symbol using the determined context model.
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公开(公告)号：US12047569B2
公开(公告)日：2024-07-23
申请号：US17967352
申请日：2022-10-17
发明人： Woong-il Choi , Sun-il Lee , Ki-ho Choi
IPC分类号： H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176
CPC分类号： H04N19/117 , H04N19/105 , H04N19/159 , H04N19/176
摘要： Provided is a video decoding method of applying a deblocking filter to neighboring pixels adjacent to a boundary of a current block, the video decoding method including selecting a deblocking filter to be applied to the neighboring pixels from among a plurality of deblocking filters according to pixel values of the neighboring pixels and a size of the current block, and applying the selected deblocking filter to the neighboring pixels, wherein the plurality of deblocking filters include three or more deblocking filters having different ranges of neighboring pixels to which deblocking filtering is applied.
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公开(公告)号：US11831904B2
公开(公告)日：2023-11-28
申请号：US17971883
申请日：2022-10-24
发明人： Jin-young Lee , Seung-soo Jeong , Jung-hye Min , Sun-il Lee
IPC分类号： H04N11/02 , H04N19/52 , H04N19/176 , H04N19/70 , H04N19/182 , H04N19/51
CPC分类号： H04N19/52 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/70
摘要： A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.
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