公开(公告)号：US11509899B2

公开(公告)日：2022-11-22

申请号：US17314475

申请日：2021-05-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC: H04N19/13 ,  H04N19/46 ,  H04N19/593 ,  H04N19/463 ,  H04N19/186 ,  H04N19/119 ,  H04N19/11 ,  H04N19/154

Abstract: 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：USRE47243E1

公开(公告)日：2019-02-12

申请号：US14926883

申请日：2015-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov

IPC: H04N7/12 ,  H04N19/85 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/122 ,  H04N19/61 ,  H04N19/11 ,  H04N19/105 ,  H04N19/134

Abstract: Disclosed are a video encoding method and apparatus and a video decoding method and apparatus. The method of encoding video includes: producing a first predicted coding unit of a current coding unit, which is to be encoded; determining whether the current coding unit comprises a portion located outside a boundary of a current picture; and producing a second predicted coding unit is produced by changing a value of pixels of the first predicted coding unit by using the pixels of the first predicted coding unit and neighboring pixels of the pixels when the current coding unit does not include a portion located outside a boundary of the current picture. Accordingly, a residual block that is the difference between the current encoding unit and the second predicted encoding unit, can be encoded, thereby improving video prediction efficiency.

公开(公告)号：US09668001B2

公开(公告)日：2017-05-30

申请号：US14635725

申请日：2015-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Il-koo Kim

IPC: H04N7/12 ,  G06K9/36 ,  H04N19/91 ,  H04N19/169 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/60 ,  H04N19/593

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

Abstract: 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：US09554157B2

公开(公告)日：2017-01-24

申请号：US14635628

申请日：2015-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Il-koo Kim

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

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

Abstract: 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：US09503727B2

公开(公告)日：2016-11-22

申请号：US14603079

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Il-koo Kim

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/109 ,  H04N19/593 ,  H04N19/11 ,  H04N19/46 ,  H04N19/137 ,  H04N19/96 ,  H04N19/44

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

Abstract: 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.

Abstract translation: 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：US09479783B2

公开(公告)日：2016-10-25

申请号：US14603143

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Il-koo Kim

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/109 ,  H04N19/176 ,  H04N19/46 ,  H04N19/105 ,  H04N19/159 ,  H04N19/137 ,  H04N19/96 ,  H04N19/44

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

Abstract: 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.

Abstract translation: 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：US09451267B2

公开(公告)日：2016-09-20

申请号：US14615165

申请日：2015-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Vadim Seregin

IPC: H04N19/139 ,  H04N19/52 ,  H04N19/119 ,  H04N19/176 ,  H04N19/513 ,  H04N19/56 ,  H04N19/105 ,  H04N19/159 ,  H04N19/129

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/119 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56

Abstract: Encoding and decoding a motion vector using a motion vector of a current block of a current picture, which indicates a region corresponding to the current block in a first reference picture and one of generating a motion vector predictor from a motion vector of the adjacent block having a motion vector referring to the first reference picture among adjacent blocks encoded before the current block and a motion vector of an adjacent block referring to a second reference picture other than the first reference picture.

公开(公告)号：US09118913B2

公开(公告)日：2015-08-25

申请号：US14501769

申请日：2014-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov ,  Maxim Koroteev

IPC: H04N7/12 ,  H04N19/13 ,  H04N19/50 ,  H04N19/176 ,  H04N19/119 ,  H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/91 ,  H04N19/182 ,  H04N19/82 ,  H04N19/33 ,  H04N19/196

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

Abstract: 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.

Abstract translation: 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：US08611420B2

公开(公告)日：2013-12-17

申请号：US13686635

申请日：2012-11-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov ,  Maxim Koroteev

IPC: H04N7/12

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

Abstract: 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：US20130279580A1

公开(公告)日：2013-10-24

申请号：US13920711

申请日：2013-06-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander Alshin ,  Vadim Seregin

IPC: H04N7/50

CPC classification number: H04N19/625 ,  H04N19/119 ,  H04N19/122 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

Abstract: An image encoding method includes generating a first frequency coefficient matrix by transforming a predetermined block to a frequency domain; determining whether the first frequency coefficient matrix includes coefficients whose absolute values are greater than a predetermined value; generating a second frequency coefficient matrix by selectively partially switching at least one of rows and columns of the first frequency coefficient matrix according to an angle parameter based on a determination result; and selectively encoding the second frequency coefficient matrix based on the determination result.

Abstract translation: 图像编码方法包括：通过将预定块变换为频域来生成第一频率系数矩阵; 确定第一频率系数矩阵是否包括其绝对值大于预定值的系数; 通过基于确定结果，根据角度参数选择性地部分地切换第一频率系数矩阵的行和列中的至少一个来产生第二频率系数矩阵; 以及基于所述确定结果选择性地编码所述第二频率系数矩阵。