公开(公告)号：US20150208065A1

公开(公告)日：2015-07-23

申请号：US14672840

申请日：2015-03-30

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Vadim SEREGIN ,  Il-koo KIM

IPC分类号： H04N19/109 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/109 ,  H04N19/105 ,  H04N19/11 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

摘要： A video decoding method involving intra prediction includes: parsing a most probable mode (MPM) flag of a block while parsing symbols of the block of an encoded video from a received bitstream; determining whether a predetermined number of a plurality of candidate intra prediction modes are used to predict an intra prediction mode of the block based on the MPM flag; when it is determined that the plurality of candidate intra prediction modes are used based on the MPM flag, determining the plurality of candidate intra prediction modes based on intra prediction modes of a left block and an upper block that are adjacent to the block while restoring the intra prediction mode of the block by using the parsed symbols.

摘要翻译： 涉及帧内预测的视频解码方法包括：从接收到的比特流解码编码视频的块的符号，解析块的最可能模式（MPM）标志; 确定是否使用预定数量的多个候选帧内预测模式来基于所述MPM标志来预测所述块的帧内预测模式; 当基于MPM标志确定使用多个候选帧内预测模式时，基于与块相邻的左块和上块的帧内预测模式确定多个候选帧内预测模式，同时恢复 通过使用解析的符号来进行块预测模式。

公开(公告)号：US20150181225A1

公开(公告)日：2015-06-25

申请号：US14635725

申请日：2015-03-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Vadim SEREGIN ,  Il-koo KIM

IPC分类号： H04N19/593 ,  H04N19/176

CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

摘要： A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

摘要翻译： 通过符号解码对视频进行解码的方法包括从接收到的比特流解析图像块的符号; 基于根据当前块的大小确定的阈值，将当前符号分类为前缀位串和后缀位串; 通过使用为每个前缀位串和后缀位串确定的相应的算术解码方法来执行前缀位串和后缀位串的算术解码; 通过使用为每个前缀位串和后缀位串确定的相应的二进制化方法来执行前缀位串和后缀位串的逆二值化; 以及通过使用通过算术解码和逆二值化恢复的当前符号对当前块执行逆变换操作和预测操作来恢复图像块。

公开(公告)号：US20180376144A1

公开(公告)日：2018-12-27

申请号：US16119706

申请日：2018-08-31

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Vadim SEREGIN ,  Il-koo KIM

IPC分类号： H04N19/13 ,  H04N19/169 ,  H04N19/60 ,  H04N19/44 ,  H04N19/91 ,  H04N19/157 ,  H04N19/593 ,  H04N19/176

摘要： A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

公开(公告)号：US20170310965A1

公开(公告)日：2017-10-26

申请号：US15647720

申请日：2017-07-12

申请人： SAMSUNG ELECTRONICS CO., LTD.

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： H04N19/119 ,  H04N19/61 ,  H04N19/593 ,  H04N19/52 ,  H04N19/50 ,  H04N19/147 ,  H04N19/44 ,  H04N19/196 ,  H04N19/176 ,  H04N19/172 ,  H04N19/96 ,  H04N19/513

CPC分类号： H04N19/50 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

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.

公开(公告)号：US20170237985A1

公开(公告)日：2017-08-17

申请号：US15584523

申请日：2017-05-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Vadim SEREGIN ,  Il-koo KIM

IPC分类号： H04N19/13 ,  H04N19/176 ,  H04N19/60 ,  H04N19/44 ,  H04N19/593 ,  H04N19/157 ,  H04N19/169

CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

摘要： A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

公开(公告)号：US20150139298A1

公开(公告)日：2015-05-21

申请号：US14603079

申请日：2015-01-22

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Vadim SEREGIN ,  Il-koo KIM

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/176

CPC分类号： H04N19/109 ,  H04N19/105 ,  H04N19/11 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

摘要： A video decoding method involving intra prediction includes: parsing a most probable mode (MPM) flag of a block while parsing symbols of the block of an encoded video from a received bitstream; determining whether a predetermined number of a plurality of candidate intra prediction modes are used to predict an intra prediction mode of the block based on the MPM flag; when it is determined that the plurality of candidate intra prediction modes are used based on the MPM flag, determining the plurality of candidate intra prediction modes based on intra prediction modes of a left block and an upper block that are adjacent to the block while restoring the intra prediction mode of the block by using the parsed symbols.

摘要翻译： 涉及帧内预测的视频解码方法包括：从接收到的比特流解码编码视频的块的符号，解析块的最可能模式（MPM）标志; 确定是否使用预定数量的多个候选帧内预测模式来基于所述MPM标志来预测所述块的帧内预测模式; 当基于MPM标志确定使用多个候选帧内预测模式时，基于与块相邻的左块和上块的帧内预测模式确定多个候选帧内预测模式，同时恢复 通过使用解析的符号来进行块预测模式。

公开(公告)号：US20150016525A1

公开(公告)日：2015-01-15

申请号：US14501769

申请日：2014-09-30

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Elena ALSHINA ,  Alexander ALSHIN ,  Vadim SEREGIN ,  Nikolay SHLYAKHOV ,  Maxim KOROTEEV

IPC分类号： H04N19/196 ,  H04N19/50

CPC分类号： H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/176 ,  H04N19/182 ,  H04N19/198 ,  H04N19/33 ,  H04N19/50 ,  H04N19/593 ,  H04N19/82 ,  H04N19/91

摘要： A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency.

摘要翻译： 视频编码方法和装置以及视频解码方法和装置。 在视频编码方法中，产生要编码的当前编码单元的第一预测编码单元，通过使用第一预测编码单元的每个像素来改变第一预测编码单元的每个像素的值来产生第二预测编码单元 第一预测编码单元和每个像素的至少一个相邻像素，并且对当前编码单元和第二预测编码单元之间的差进行编码，从而提高视频预测效率。

公开(公告)号：US20130083850A1

公开(公告)日：2013-04-04

申请号：US13686635

申请日：2012-11-27

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Elena ALSHINA ,  Alexander ALSHIN ,  Vadim SEREGIN ,  Nikolay SHLYAKHOV ,  Maxim KOROTEEV

IPC分类号： H04N7/32

CPC分类号： H04N19/13 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/176 ,  H04N19/182 ,  H04N19/198 ,  H04N19/33 ,  H04N19/50 ,  H04N19/593 ,  H04N19/82 ,  H04N19/91

摘要： A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency.

公开(公告)号：US20230064033A1

公开(公告)日：2023-03-02

申请号：US17975133

申请日：2022-10-27

申请人： SAMSUNG ELECTRONICS CO., LTD.

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.

公开(公告)号：US20210266554A1

公开(公告)日：2021-08-26

申请号：US17314475

申请日：2021-05-07

申请人： SAMSUNG ELECTRONICS CO., LTD.

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.