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71.发明授权公开(公告)号：US10972748B2
公开(公告)日：2021-04-06
申请号：US16813352
申请日：2020-03-09
发明人： Tammy Lee , Jianle Chen
IPC分类号： H04N19/52 , H04N19/513 , H04N19/517 , H04N19/105 , H04N19/139 , H04N19/65 , H04N19/176
摘要： Provided are methods and apparatus for encoding and decoding motion information. The method of encoding motion information includes: obtaining a motion information candidate by using motion information of prediction units that are temporally or spatially related to a current prediction unit; adding, when the number of motion information included in the motion information candidate is smaller than a predetermined number n, alternative motion information to the motion information candidate so that the number of motion information included in the motion information candidate reaches the predetermined number n; determining motion information with respect to the current prediction unit from among the n motion information candidates; and encoding index information indicating the determined motion information as motion information of the current prediction unit.
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公开(公告)号：US10915993B2
公开(公告)日：2021-02-09
申请号：US16342047
申请日：2017-10-20
发明人： Kyung-Min Lim , Jae-Sung Lee , Tammy Lee , Chang-Han Kim , Eun-Young Lee
摘要： An image processing method of a display apparatus is disclosed. The image processing method includes analyzing a plurality of image frames constituting a virtual reality image and determining shake information of a camera which photographs the VR image, calculating a shake correction value of an image corresponding to a viewing area of a user from the VR image based on the shake information of the camera, and adjusting the viewing area based on the shake correction value and displaying an image corresponding to the adjusted viewing area in the VR image.
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公开(公告)号：US10771779B2
公开(公告)日：2020-09-08
申请号：US16538235
申请日：2019-08-12
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 , H04N19/46 , H04N19/176 , H04N19/119 , H04N19/57 , 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：US20200221094A1
公开(公告)日：2020-07-09
申请号：US16820191
申请日：2020-03-16
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：US10708616B2
公开(公告)日：2020-07-07
申请号：US16598031
申请日：2019-10-10
发明人： Tammy Lee , Woo-jin Han
IPC分类号： H04N19/56 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/52 , H04N19/61 , H04N19/172 , H04N19/176 , H04N19/513 , H04N19/184
摘要： A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.
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公开(公告)号：US10484709B2
公开(公告)日：2019-11-19
申请号：US16047567
申请日：2018-07-27
发明人： Tammy Lee , Woo-jin Han
IPC分类号： H04N19/56 , H04N19/52 , H04N19/61 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/172 , H04N19/176 , H04N19/513 , H04N19/184
摘要： A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.
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公开(公告)号：US10306262B2
公开(公告)日：2019-05-28
申请号：US16016031
申请日：2018-06-22
发明人： Woo-jin Han , Elena Alshina , Jung-hye Min , Alexander Alshin , Il-koo Kim , Nikolay Shlyakhov , Tammy Lee , Sun-il Lee , Min-su Cheon , Jianle Chen , Vadim Seregin , Yoon-mi Hong
IPC分类号： H04N19/50 , H04N19/59 , H04N19/176 , H04N19/196 , H04N19/80 , H04N19/119 , H04N19/147 , H04N19/61 , H04N19/96 , H04N19/513 , H04N19/593 , H04N19/44 , H04N19/52 , H04N19/172 , H04N19/159 , H04N19/139 , H04N19/117 , H04N19/82 , H04N19/86 , H04N19/30 , H04N19/184
摘要： A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.
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公开(公告)号：US10284878B2
公开(公告)日：2019-05-07
申请号：US15969104
申请日：2018-05-02
发明人： Jung-hye Min , Tammy Lee , Il-koo Kim
IPC分类号： H04N7/18 , H04N11/02 , H04N11/04 , H04N19/86 , H04N19/50 , H04N19/119 , H04N19/61 , H04N19/96 , H04N19/117 , H04N19/157 , H04N19/82 , H04N19/139 , H04N19/159 , H04N19/182 , H04N19/80 , H04N19/105 , H04N19/122 , H04N19/30 , H04N19/52 , H04N19/593
摘要： A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.
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公开(公告)号：US10271071B2
公开(公告)日：2019-04-23
申请号：US15822670
申请日：2017-11-27
发明人： Tammy Lee , Byeong-doo Choi
IPC分类号： H04N19/91 , H04N19/14 , H04N19/174 , H04N19/172 , H04N19/68 , H04N19/70 , H04N19/50 , A47J39/02
摘要： Provided are entropy encoding and entropy decoding for video encoding and decoding. The video entropy decoding method includes: determining a bin string and a bin index for a maximum coding unit that is obtained from a bitstream; determining a value of a syntax element by comparing the determined bin string with bin strings that is assignable to the syntax element in the bin index; storing context variables for the maximum coding unit when the syntax element is a last syntax element in the maximum coding unit, a dependent slice segment is includable in a picture in which the maximum coding unit is included, and the maximum coding unit is a last maximum coding unit in a slice segment; and restoring symbols of the maximum coding unit by using the determined value of the syntax element.
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公开(公告)号：US10225551B2
公开(公告)日：2019-03-05
申请号：US15918347
申请日：2018-03-12
发明人： Min-su Cheon , Woo-jin Han , Hae-kyung Jung , Il-koo Kim , Tammy Lee , Jianle Chen
IPC分类号： H04N19/122 , G06T9/00 , H04N19/503 , H04N19/176 , H04N19/119 , H04N19/147 , H04N19/61 , H04N19/96 , H04N19/91 , H04N19/13 , H04N19/182 , H04N19/30 , H04N19/50 , H04N19/60 , H04N19/107 , H04N19/124 , H04N19/159
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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