公开(公告)号：US08902979B2

公开(公告)日：2014-12-02

申请号：US14107802

申请日：2013-12-16

Applicant: Samsung Electronics Co., Ltd.

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

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

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：US08837590B2

公开(公告)日：2014-09-16

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

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：US08837589B2

公开(公告)日：2014-09-16

申请号：US14107802

申请日：2013-12-16

Applicant: Samsung Electronics Co., Ltd.

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

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

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：US20140140411A1

公开(公告)日：2014-05-22

申请号：US14130080

申请日：2012-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin

IPC: H04N19/115 ,  H04N19/18 ,  H04N19/146 ,  H04N19/60

CPC classification number: H04N19/122 ,  G06F17/147 ,  H04N19/115 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/146 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/184 ,  H04N19/34 ,  H04N19/42 ,  H04N19/44 ,  H04N19/45 ,  H04N19/60 ,  H04N19/625

Abstract: Provided are a video encoding method of adjusting a range of encoded output data to adjust a bit depth during restoring of encoded samples, and a video decoding method of substantially preventing overflow from occurring in output data in operations of a decoding process. The video decoding method includes parsing and restoring quantized transformation coefficients in units of blocks of an image from a received bitstream, restoring transformation coefficients by performing inverse quantization on the quantized transformation coefficients, and restoring samples by performing one-dimensional (1D) inverse transformation and inverse scaling on the quantized transformation coefficients. At least one from among the transformation coefficients and the samples has a predetermined bit depth or less.

Abstract translation: 提供了一种在编码样本恢复期间调整编码输出数据的范围以调整位深度的视频编码方法，以及在解码处理的操作中基本上防止在输出数据中发生溢出的视频解码方法。 视频解码方法包括以接收到的比特流解码和恢复图像块的量化变换系数，通过对量化的变换系数执行逆量化来恢复变换系数，以及通过执行一维（1D）逆变换来恢复样本， 对量化变换系数进行反缩放。 变换系数和样本中的至少一个具有预定位深度或更小。

公开(公告)号：US08649435B2

公开(公告)日：2014-02-11

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: H04N7/12

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.

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：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：US11956419B2

公开(公告)日：2024-04-09

申请号：US16939730

申请日：2020-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-Ho Choi ,  Min-woo Park ,  Elena Alshina ,  Chan-yul Kim ,  In-kwon Choi

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/44 ,  H04N19/119 ,  H04N19/46

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：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.

公开(公告)号：US11153601B2

公开(公告)日：2021-10-19

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 ,  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：US10939104B2

公开(公告)日：2021-03-02

申请号：US15767307

申请日：2016-10-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Mikhail Mishurovskiy ,  Alexander Alshin

IPC: H04N19/124 ,  H04N19/122 ,  H04N19/91 ,  H04N19/109 ,  H04N19/182 ,  H04N19/44 ,  H04N19/61 ,  H04N19/126 ,  H04N19/70 ,  H04N19/137 ,  H04N19/51 ,  H04N19/194 ,  H04N19/11 ,  H04N19/18 ,  H04N19/537 ,  H04N19/46 ,  H04N19/593 ,  H04N19/63 ,  H04N19/13 ,  H04N19/436 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/57

Abstract: An image decoding method and apparatus according to an embodiment may extract, from a bitstream, a quantization coefficient generated through core transformation, secondary transformation, and quantization; generate an inverse-quantization coefficient by performing inverse quantization on the quantization coefficient; generate a secondary inverse-transformation coefficient by performing secondary inverse-transformation on a low frequency component of the inverse-quantization coefficient, the secondary inverse-transformation corresponding to the secondary transformation; and perform core inverse-transformation on the secondary inverse-transformation coefficient, the core inverse-transformation corresponding to the core transformation.