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公开(公告)号：US11303883B2
公开(公告)日：2022-04-12
申请号：US16939663
申请日：2020-07-27
发明人： Chang-Hyun Lee , Tammy Lee , Jianle Chen , Dae-sung Cho , Woo-jin Han , Il-koo Kim
IPC分类号： H04N19/103 , H04N19/119 , H04N19/176 , H04N19/57 , H04N19/46 , H04N19/61
摘要： A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
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公开(公告)号：US11295412B2
公开(公告)日：2022-04-05
申请号：US16838650
申请日：2020-04-02
发明人： Cheon Lee , Donghyun Kim , Yongsup Park , Jaeyeon Park , Iljun Ahn , Hyunseung Lee , Taegyoung Ahn , Youngsu Moon , Tammy Lee
摘要： An image processing apparatus applies an image to a first learning network model to optimize the edges of the image, applies the image to a second learning network model to optimize the texture of the image, and applies a first weight to the first image and a second weight to the second image based on information on the edge areas and the texture areas of the image to acquire an output image.
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公开(公告)号：US20210266554A1
公开(公告)日：2021-08-26
申请号：US17314475
申请日：2021-05-07
发明人： Vadim SEREGIN , Jianle Chen , Sun-il Lee , Tammy Lee
IPC分类号： H04N19/13 , H04N19/46 , H04N19/593 , H04N19/463 , H04N19/186
摘要： Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.
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公开(公告)号：US10893277B2
公开(公告)日：2021-01-12
申请号：US16680133
申请日：2019-11-11
发明人： Tammy Lee , Jianle Chen
IPC分类号： H04N19/159 , H04N19/105 , H04N19/176 , H04N19/11 , H04N19/136 , H04N19/182 , H04N19/593
摘要： A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is to sequentially replaced by using a directly adjacent pixel in a predetermined direction.
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105.发明授权公开(公告)号：US10542063B2
公开(公告)日：2020-01-21
申请号：US15519428
申请日：2015-10-15
发明人： Tammy Lee , Seung-hoon Han
摘要： Disclosed are a coded video data processing method and apparatus which consider a random access, and a coded video data generating method and apparatus which consider a random access. The coded video data processing method includes obtaining a bitstream of coded video data, obtaining metadata information used for video-processing of pictures having a decoding order after a random access point picture in the bitstream, and performing video-processing on decoded video data among the pictures having the decoding order after the random access point picture, based on the metadata information.
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106.发明授权公开(公告)号：US10257517B2
公开(公告)日：2019-04-09
申请号：US15457154
申请日：2017-03-13
发明人： Tammy Lee , Jianle Chen
IPC分类号： H04N19/18 , H04N19/13 , H04N19/30 , H04N19/119 , H04N19/136 , H04N19/176 , H04N19/61 , H04N19/96 , H04N19/157 , H04N19/426 , H04N19/60 , H04N19/91 , H04N19/12 , H04N19/186 , H04N19/46 , H04N19/70 , H04N19/184
摘要： Provided are video encoding and decoding methods and apparatuses. The video encoding method includes: encoding a video based on data units having a hierarchical structure; determining a context model used for entropy encoding a syntax element of a data unit based on at least one piece of additional information of the data units; and entropy encoding the syntax element by using the determined context model.
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公开(公告)号：US10212427B2
公开(公告)日：2019-02-19
申请号：US14299863
申请日：2014-06-09
发明人： Tammy Lee , Woo-jin Han , Il-koo Kim , Sun-il Lee
IPC分类号： H04N19/14 , H04N19/137 , H04N19/56 , H04N19/105 , H04N19/52 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/196 , H04N19/96 , H04N19/103 , H04N19/463 , H04N19/174 , H04N19/139 , H04N19/30 , H04N19/33
摘要： Provided are a method and apparatus for encoding a video by using block merging and a method and apparatus for decoding a video by using block merging. The method of encoding includes: determining an encoding mode indicating a current data unit for encoding of a picture and an encoding method including prediction encoding performed for the current data unit; determining an occurrence of merging with at least one neighboring data unit based on at least one of the encoding mode and a prediction mode; and determining prediction mode information, merging related information, and prediction related information, and determining encoding information of the data unit including the prediction mode information, the merging related information, and the prediction related information.
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公开(公告)号：US10110902B2
公开(公告)日：2018-10-23
申请号：US15851329
申请日：2017-12-21
发明人： Tammy Lee , Woo-jin Han , Kyo-hyuk Lee
IPC分类号： H04N19/139 , H04N19/105 , H04N19/96 , H04N19/86 , H04N19/61 , H04N19/52 , H04N19/513 , H04N19/176 , H04N19/159 , H04N19/147 , H04N19/124 , H04N19/117 , H04N19/70 , H04N19/184
摘要： Provided are methods and apparatuses for encoding and decoding a motion vector.
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公开(公告)号：US10085037B2
公开(公告)日：2018-09-25
申请号：US14723992
申请日：2015-05-28
发明人： Tammy Lee , Jianle Chen
IPC分类号： H04N19/51 , H04N19/13 , H04N19/61 , H04N19/91 , H04N19/52 , H04N19/593 , H04N19/82 , H04N19/96
CPC分类号： H04N19/52 , H04N19/13 , H04N19/51 , H04N19/593 , H04N19/61 , H04N19/82 , H04N19/91 , H04N19/96
摘要： Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
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公开(公告)号：US09942549B2
公开(公告)日：2018-04-10
申请号：US15416776
申请日：2017-01-26
发明人： Min-su Cheon , Woo-jin Han , Hae-kyung Jung , Il-koo Kim , Tammy Lee , Jianle Chen
IPC分类号： H04N19/30 , H04N19/122 , H04N19/159 , H04N19/13 , H04N19/124 , H04N19/119
CPC分类号： H04N19/122 , G06T9/00 , H04N19/107 , H04N19/119 , H04N19/124 , H04N19/13 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/30 , H04N19/50 , H04N19/503 , H04N19/60 , H04N19/61 , H04N19/91 , H04N19/96
摘要： A method of decoding an image in which wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of at least one prediction unit in the coding unit is determined independently from a size of at least one transformation unit in the coding unit.
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