公开(公告)号：US09313521B2

公开(公告)日：2016-04-12

申请号：US14644623

申请日：2015-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin

IPC: H04N19/00 ,  H04N19/523 ,  G06T3/40 ,  H04N19/61 ,  H04N19/117 ,  H04N19/182 ,  H04N19/167 ,  H04N19/59 ,  H04N19/537 ,  H04N19/52 ,  H04N19/82

CPC classification number: H04N19/523 ,  G06T3/4007 ,  H04N19/117 ,  H04N19/167 ,  H04N19/182 ,  H04N19/52 ,  H04N19/537 ,  H04N19/59 ,  H04N19/61 ,  H04N19/82

Abstract: A sub-pel-unit image interpolation method using a transformation-based interpolation filter includes, selecting, based on a sub-pel-unit interpolation location in a region supported by a plurality of interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, one of a symmetric interpolation filter and an asymmetric interpolation filter from among the plurality of interpolation filters; and using the selected interpolation filter to generate the at least one sub-pel-unit pixel value by interpolating the integer-pel-unit pixels.

公开(公告)号：US09219918B2

公开(公告)日：2015-12-22

申请号：US14640877

申请日：2015-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin

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

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：US09124894B2

公开(公告)日：2015-09-01

申请号：US14658963

申请日：2015-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander Alshin ,  Elena Alshina ,  Nikolay Shlyakhov

IPC: H04N19/00 ,  H04N19/182 ,  H04N19/117

CPC classification number: H04N19/65 ,  G06K9/4604 ,  H04N19/117 ,  H04N19/136 ,  H04N19/137 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/40 ,  H04N19/44 ,  H04N19/463 ,  H04N19/82 ,  H04N19/85 ,  H04N19/96

Abstract: Provided are a method and apparatus of encoding a video by compensating for a pixel value and a method and apparatus of decoding a video by compensating for a pixel value. The method of encoding the video includes: encoding image data; decoding the encoded image data and generating a restored image by performing loop filtering on the decoded image data; determining a compensation value corresponding to errors between a predetermined group restored pixels in the restored image and corresponding original pixels, and a pixel group including a restored pixel to be compensated for by using the compensation value; and encoding the compensation value and transmitting the encoded compensation value and a bitstream of the encoded image data.

Abstract translation: 提供了通过补偿像素值对视频进行编码的方法和装置，以及通过补偿像素值来解码视频的方法和装置。 视频编码方法包括：编码图像数据; 对编码图像数据进行解码并通过对解码图像数据执行循环滤波来生成恢复图像; 确定对应于恢复图像中的预定组恢复像素与相应原始像素之间的误差的补偿值，以及包括通过使用补偿值补偿的恢复像素的像素组; 并且对所述补偿值进行编码，并且发送编码的补偿值和编码图像数据的比特流。

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：US20150172678A1

公开(公告)日：2015-06-18

申请号：US14407327

申请日：2013-06-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin

IPC: H04N19/174 ,  H04N19/157 ,  H04N19/44 ,  H04N19/13

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 sample adaptive offset (SAO) adjustment method, the method includes: obtaining 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 of the current slice from the slice SAO parameters; determining whether to perform an SAO adjustment on the luma component of the current slice based on the obtained luma SAO use information; and determining whether to perform an 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: 一种采样自适应偏移（SAO）调整方法，所述方法包括：从接收到的比特流的片头获得关于当前片的切片SAO参数; 从切片SAO参数获取亮度SAO使用信息用于当前切片的亮度分量和色度SAO使用信息用于当前切片的色度分量; 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调整; 以及基于获得的色度SAO使用信息来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：US20140369420A1

公开(公告)日：2014-12-18

申请号：US14368136

申请日：2012-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin

IPC: H04N19/44

CPC classification number: H04N19/176 ,  H04N19/117 ,  H04N19/136 ,  H04N19/14 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/65 ,  H04N19/82 ,  H04N19/96

Abstract: A video decoding method includes extracting offset mergence information of a current largest coding unit (LCU), the offset mergence information indicating whether to adopt a second offset parameter as a first offset parameter of the current LCU; reconstructing the first offset parameter of the current LCU based on the offset mergence information, the first offset parameter including an offset type, an offset value, and an offset class of the current LCU; determining whether the current LCU is an edge type or a band type, based on the offset type; determining an edge direction according to the edge type or a band range according to the band type, based on the offset class; determining a difference value between reconstructed pixels and original pixels included in the offset class, based on the offset value; and adjusting pixel values of reconstructed pixels based on the difference value.

Abstract translation: 视频解码方法包括提取当前最大编码单元（LCU）的偏移合并信息，该偏移合并信息指示是否采用第二偏移参数作为当前LCU的第一偏移参数; 基于偏移合并信息重构当前LCU的第一偏移参数，第一偏移参数包括当前LCU的偏移类型，偏移值和偏移等级; 基于偏移类型确定当前LCU是边缘类型还是带类型; 基于偏移等级，根据边缘类型或根据频带类型的频带范围确定边缘方向; 基于所述偏移值来确定所述偏移类别中包括的重建像素与原始像素之间的差值; 以及基于所述差值来调整重构像素的像素值。

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。

公开(公告)号：US12284388B2

公开(公告)日：2025-04-22

申请号：US18493359

申请日：2023-10-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji Piao ,  Elena Alshina ,  Alexander Alshin ,  Anish Tamse

IPC: H04N19/615 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  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：US20240056606A1

公开(公告)日：2024-02-15

申请号：US18493402

申请日：2023-10-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yinji PIAO ,  Elena Alshina ,  Alexander Alshin ,  Anish Tamse

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

CPC classification number: H04N19/615 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/176 ,  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.