公开(公告)号：US20160330449A1

公开(公告)日：2016-11-10

申请号：US15212750

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Jianle CHEN

IPC: H04N19/129 ,  H04N19/96 ,  H04N19/186 ,  H04N19/60

CPC classification number: H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

Abstract: Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

公开(公告)号：US20160330448A1

公开(公告)日：2016-11-10

申请号：US15212649

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Jianle CHEN

IPC: H04N19/129 ,  H04N19/625 ,  H04N19/186 ,  H04N19/96 ,  H04N19/18 ,  H04N19/136

CPC classification number: H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

Abstract: Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

公开(公告)号：US20150156497A1

公开(公告)日：2015-06-04

申请号：US14615194

申请日：2015-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Vadim SEREGIN

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  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：US20150156496A1

公开(公告)日：2015-06-04

申请号：US14615165

申请日：2015-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Vadim SEREGIN

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105

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：US20150156495A1

公开(公告)日：2015-06-04

申请号：US14615041

申请日：2015-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Vadim SEREGIN

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/105 ,  H04N19/176

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.

Abstract translation: 使用当前图像的当前块的运动矢量对运动矢量进行编码和解码，其指示与第一参考图像中的当前块相对应的区域，以及从相邻块的运动矢量生成运动矢量预测器，所述运动矢量具有 参考在当前块之前编码的相邻块中的第一参考图像的运动矢量和参考除第一参考图像之外的第二参考图像的相邻块的运动矢量。

公开(公告)号：US20150139332A1

公开(公告)日：2015-05-21

申请号：US14603218

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Il-koo KIM

IPC: H04N19/60 ,  H04N19/44

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：US20150139299A1

公开(公告)日：2015-05-21

申请号：US14603236

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Il-koo KIM

IPC: H04N19/13 ,  H04N19/176 ,  H04N19/157

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：US20180310015A1

公开(公告)日：2018-10-25

申请号：US16016031

申请日：2018-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： 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: H04N19/50 ,  H04N19/96 ,  H04N19/86

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

Abstract: 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：US20180295365A1

公开(公告)日：2018-10-11

申请号：US16003946

申请日：2018-06-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Sun-il LEE ,  Tammy LEE

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

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：US20160330451A1

公开(公告)日：2016-11-10

申请号：US15212855

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Jianle CHEN

IPC: H04N19/129 ,  H04N19/96 ,  H04N19/186 ,  H04N19/60

CPC classification number: H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

Abstract: Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.