公开(公告)号：US20140105287A1

公开(公告)日：2014-04-17

申请号：US14107910

申请日：2013-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/50 ,  H04N19/91

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：US20250047871A1

公开(公告)日：2025-02-06

申请号：US18922558

申请日：2024-10-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander Alshin

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/573

Abstract: Provided is a video decoding method including: obtaining a first motion vector indicating a first reference block of a current block in a first reference picture and a second motion vector indicating a second reference block of the current block in a second reference picture; obtaining a parameter related to pixel group unit motion compensation of the current block, based on at least one of information of the parameter related to the pixel group unit motion compensation and a parameter related to an image including the current picture; generating a prediction block by performing, with respect to the current block, block unit motion compensation based on the first motion vector and the second motion vector and performing the pixel group unit motion compensation based on the parameter related to the pixel group unit motion compensation; and reconstructing the current block. Here, a pixel group may include at least one pixel.

公开(公告)号：US20240171768A1

公开(公告)日：2024-05-23

申请号：US18420898

申请日：2024-01-24

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Yin-ji PIAO ,  Jie CHEN ,  Elena ALSHINA

IPC: H04N19/52 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/635 ,  H04N19/64

CPC classification number: H04N19/52 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/635 ,  H04N19/647

Abstract: A video decoding method includes obtaining split information indicating whether to split a current block, splitting the current block into two or more lower blocks when the split information indicates to split the current block, obtaining encoding order information indicating an encoding order of the lower blocks of the current block, determining a decoding order of the lower blocks according to the encoding order information, and decoding the lower blocks according to the decoding order.

公开(公告)号：US20230055060A1

公开(公告)日：2023-02-23

申请号：US17973798

申请日：2022-10-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN

IPC: H04N19/159 ,  H04N19/573 ,  H04N19/176 ,  H04N19/105

Abstract: Provided is a video decoding method including: obtaining a first motion vector indicating a first reference block of a current block in a first reference picture and a second motion vector indicating a second reference block of the current block in a second reference picture; obtaining a parameter related to pixel group unit motion compensation of the current block, based on at least one of information of the parameter related to the pixel group unit motion compensation and a parameter related to an image including the current picture; generating a prediction block by performing, with respect to the current block, block unit motion compensation based on the first motion vector and the second motion vector and performing the pixel group unit motion compensation based on the parameter related to the pixel group unit motion compensation; and reconstructing the current block. Here, a pixel group may include at least one pixel.

公开(公告)号：US20220210405A1

公开(公告)日：2022-06-30

申请号：US17696514

申请日：2022-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-ho CHOI ,  Min-woo PARK ,  Elena ALSHINA ,  Chan-yul KIM ,  In-kwon CHOI

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/122 ,  H04N19/13 ,  H04N19/129 ,  H04N19/44

Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.

公开(公告)号：US20220078482A1

公开(公告)日：2022-03-10

申请号：US17479674

申请日：2021-09-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander ALSHIN ,  Elena ALSHINA

IPC: H04N19/577 ,  H04N19/105 ,  H04N19/182 ,  H04N19/176 ,  H04N19/523 ,  H04N19/537 ,  H04N19/136

Abstract: A video decoding and video encoding method of performing inter prediction in a bi-directional motion prediction mode, in which a prediction pixel value of a current block may be generated by not only using a pixel value of a first reference block of a first reference picture and a pixel value of a second reference block of a second reference picture, but also using a first gradient value of the first reference block and a second gradient value of the second reference block, in a bi-directional motion prediction mode. Accordingly, encoding and decoding efficiency may be increased since a prediction block similar to an original block may be generated.

公开(公告)号：US20200374562A1

公开(公告)日：2020-11-26

申请号：US16959726

申请日：2019-01-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji PIAO ,  Elena ALSHINA ,  Alexander ALSHIN ,  Anish TAMSE

IPC: H04N19/615 ,  H04N19/109 ,  H04N19/176 ,  H04N19/105 ,  H04N19/117 ,  H04N19/423

Abstract: Provided is a video decoding method including: determining an inter prediction mode of a current block when the current block is inter-predicted; determining at least one reference sample location to be referred to by the current block, based on the inter prediction mode of the current block; determining filter information to be applied to at least one reconstructed reference sample corresponding to the at least one reference sample location, based on the inter prediction mode of the current block; performing filtering on the at least one reconstructed reference sample, based on the filter information; and decoding the current block by using prediction samples generated via the filtering.

公开(公告)号：US20200236395A1

公开(公告)日：2020-07-23

申请号：US16648510

申请日：2018-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young LEE ,  Yin-Ji PIAO ,  Elena ALSHINA

IPC: H04N19/53 ,  H04N19/52 ,  H04N19/176 ,  H04N19/13 ,  H04N19/184

Abstract: Provided is a video decoding method including: obtaining, from a bitstream, prediction motion vector information indicating a prediction motion vector of a current block and difference motion vector information indicating a difference motion vector of the current block; determining the prediction motion vector of the current block according to whether or not an adjacent block of the current block is decoded and the prediction motion vector information; determining a motion vector resolution of the current block according to whether or not the adjacent block of the current block is decoded; determining the difference motion vector of the current block according to the difference motion vector information; determining a motion vector of the current block according to the prediction motion vector, the motion vector resolution, and the difference motion vector; and reconstructing the current block according to the motion vector of the current block, wherein the adjacent block of the current block includes a right block of the current block.

公开(公告)号：US20180376165A1

公开(公告)日：2018-12-27

申请号：US15774890

申请日：2016-11-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander ALSHIN ,  Elena ALSHINA

IPC: H04N19/577 ,  H04N19/105

Abstract: Provided is a video decoding method including: obtaining motion prediction mode information regarding a current block in a current picture; when a bi-directional motion prediction mode is indicated, obtaining a first motion vector and a second motion vector indicating a first reference block and a second reference block of the current block in a first reference picture and second reference picture, respectively; generating a pixel value of a first pixel of the first reference block indicated by the first motion vector and a pixel value of a second pixel of the second reference block indicated by the second motion vector by applying an interpolation filter to a first neighboring region of the first pixel and a second neighboring region of the second pixel; generating gradient values of the first pixel and the second pixel by applying a filter to the first neighboring region and the second neighboring region; and generating a prediction pixel value of the current block by using the pixel values and the gradient values of the first pixel and the second pixel.

公开(公告)号：US20180324450A1

公开(公告)日：2018-11-08

申请号：US16027017

申请日：2018-07-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN

IPC: H04N19/463 ,  H04N19/189 ,  H04N19/176 ,  H04N19/44 ,  H04N19/137 ,  H04N19/89 ,  H04N19/90 ,  G06T5/00 ,  H04N19/50 ,  H04N19/117 ,  H04N19/14 ,  H04N19/186 ,  H04N19/182 ,  H04N19/85 ,  H04N19/625

Abstract: A video encoding method and apparatus and video decoding method and apparatus generate a restored image having a minimum error with respect to an original image based on offset merge information indicating whether offset parameters of a current block and at least one neighboring block from among blocks of video are identical.