公开(公告)号：US20150189284A1

公开(公告)日：2015-07-02

申请号：US14640877

申请日：2015-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN

IPC: H04N19/13 ,  H04N19/196 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

Abstract: A video encoding method and apparatus, and a video decoding method and apparatus for generating a reconstructed image having a minimized error between an original image and the reconstructed image. The video decoding method accompanied by a sample adaptive offset (SAO) adjustment, the method includes: obtaining 5 slice SAO parameters with respect to a current slice from a slice header of a received bitstream; obtaining luma SAO use information for a luma component of the current slice and chroma SAO use information for chroma components thereof from among the slice SAO parameters; determining whether to perform a SAO operation on the luma component of 10 the current slice based on the obtained luma SAO use information; and equally determining whether to perform the SAO adjustment on a first chroma component and a second chroma component of the current slice based on the obtained chroma SAO use information.

Abstract translation: 一种视频编码方法和装置，以及用于生成在原始图像和重建图像之间具有最小误差的重建图像的视频解码方法和装置。 伴随着样本自适应偏移（SAO）调整的视频解码方法，该方法包括：从接收到的比特流的片头中获得关于当前片的5片SAO参数; 从切片SAO参数中获取亮度SAO使用信息用于当前切片的亮度分量和色度SAO使用信息用于其色度分量; 基于获得的亮度SAO使用信息，确定是否对当前切片的亮度分量执行SAO操作; 并且基于获得的色度SAO使用信息同时确定是否对当前片的第一色度分量和第二色度分量执行SAO调整。

公开(公告)号：US20150178892A1

公开(公告)日：2015-06-25

申请号：US14636841

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN ,  Nikolay SHLYAKHOV ,  Byeong-doo CHOI ,  Yoon-mi HONG ,  Woo-jin HAN ,  Tammy LEE

IPC: G06T3/40 ,  H04N19/80 ,  H04N19/59 ,  H04N19/30 ,  H04N19/117 ,  H04N19/182 ,  H04N7/01 ,  H04N19/48 ,  H04N19/523

CPC classification number: G06T3/4007 ,  G06F17/175 ,  H04N7/014 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/48 ,  H04N19/523 ,  H04N19/59 ,  H04N19/80

Abstract: Provided are a method and apparatus for interpolating an image. The method includes: selecting a first filter, from among a plurality of different filters, for interpolating between pixel values of integer pixel units, according to an interpolation location; and generating at least one pixel value of at least one fractional pixel unit by interpolating between the pixel values of the integer pixel units by using the selected first filter.

公开(公告)号：US20150178890A1

公开(公告)日：2015-06-25

申请号：US14636787

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN ,  Nikolay SHLYAKHOV ,  Byeong-doo CHOI ,  Yoon-mi HONG ,  Woo-jin HAN ,  Tammy LEE

IPC: G06T3/40 ,  H04N19/80 ,  H04N7/01 ,  H04N19/523 ,  H04N19/117 ,  H04N19/182 ,  H04N19/48 ,  H04N19/59

CPC classification number: G06T3/4007 ,  G06F17/175 ,  H04N7/014 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/48 ,  H04N19/523 ,  H04N19/59 ,  H04N19/80

Abstract: Provided are a method and apparatus for interpolating an image. The method includes: selecting a first filter, from among a plurality of different filters, for interpolating between pixel values of integer pixel units, according to an interpolation location; and generating at least one pixel value of at least one fractional pixel unit by interpolating between the pixel values of the integer pixel units by using the selected first filter.

Abstract translation: 提供了一种用于内插图像的方法和装置。 该方法包括：根据插值位置，从多个不同滤波器中选择第一滤波器，用于在整数像素单元的像素值之间进行内插; 以及通过使用所选择的第一滤波器在整数像素单元的像素值之间进行内插来生成至少一个分数像素单元的至少一个像素值。

公开(公告)号：US20150163511A1

公开(公告)日：2015-06-11

申请号：US14627952

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul KIM ,  Tammy LEE ,  Elena ALSHINA

IPC: H04N19/577 ,  H04N19/573 ,  H04N19/513

CPC classification number: H04N19/577 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/521 ,  H04N19/57 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70 ,  H04N19/96

Abstract: A motion prediction method includes determining, when a current slice is a B slice, a reference picture list to be used with respect to a current prediction unit from among prediction units included in a coding unit, and outputting, when a size of the current prediction unit is 4×8 or 8×4, inter-prediction index information of the current prediction unit indicating the reference picture list from among an L0 list and an L1 list, and when the size of the current prediction unit is not 4×8 or 8×4, the inter-prediction index information of the current prediction unit indicating the reference picture list from among the L0 list, the L1 list, and a bi-prediction list.

公开(公告)号：US20150131742A1

公开(公告)日：2015-05-14

申请号：US14603020

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN

IPC: H04N19/44 ,  H04N19/176

CPC classification number: H04N19/463 ,  G06T5/001 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/189 ,  H04N19/44 ,  H04N19/50 ,  H04N19/625 ,  H04N19/85 ,  H04N19/89 ,  H04N19/90

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.

Abstract translation: 视频编码方法和装置以及视频解码方法和装置基于偏移合并信息生成相对于原始图像具有最小误差的恢复图像，该偏移合并信息指示视频块中的当前块和至少一个相邻块的偏移参数 是相同的

公开(公告)号：US20130329793A1

公开(公告)日：2013-12-12

申请号：US13969871

申请日：2013-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-hye MIN ,  Elena ALSHINA ,  Woo-jin HAN

IPC: H04N7/36

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/122 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/96

Abstract: A method and apparatus for determining an intra prediction mode of a coding unit. Candidate intra prediction modes of a chrominance component coding unit, which includes an intra prediction mode of a luminance component coding unit, are determined, and costs of the chrominance component coding unit according to the determined candidate intra prediction modes are compared to determine a minimum cost intra prediction mode to be the intra prediction mode of the chrominance component coding unit.

公开(公告)号：US20130083849A1

公开(公告)日：2013-04-04

申请号：US13686499

申请日：2012-11-27

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04N7/34

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：US20130077686A1

公开(公告)日：2013-03-28

申请号：US13683749

申请日：2012-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N7/32

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：US20240292022A1

公开(公告)日：2024-08-29

申请号：US18652497

申请日：2024-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander ALSHIN ,  Elena ALSHINA

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

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/523 ,  H04N19/537

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：US20220279164A1

公开(公告)日：2022-09-01

申请号：US17696512

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 ,  H04N19/122 ,  H04N19/129 ,  H04N19/176 ,  H04N19/44 ,  H04N19/13

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.