公开(公告)号：WO2012044105A3

公开(公告)日：2012-06-07

申请号：PCT/KR2011007220

申请日：2011-09-30

Applicant: SAMSUNG ELECTRONICS CO LTD ,  ALSHIN ALEXANDER ,  ALSHINA ELENA ,  CHEN JIANLE ,  HAN WOO-JIN ,  SHLYAKHOV NIKOLAY ,  HONG YOON-MI

Inventor： ALSHIN ALEXANDER ,  ALSHINA ELENA ,  CHEN JIANLE ,  HAN WOO-JIN ,  SHLYAKHOV NIKOLAY ,  HONG YOON-MI

IPC: H04N7/26 ,  H04N7/32

CPC classification number: H04N19/86 ,  G06F17/17 ,  G06F17/175 ,  G06T3/4007 ,  G06T5/002 ,  H04N19/117 ,  H04N19/182 ,  H04N19/186 ,  H04N19/42 ,  H04N19/43 ,  H04N19/521 ,  H04N19/523 ,  H04N19/59 ,  H04N19/635 ,  H04N19/80 ,  H04N19/82

Abstract: Provided is a method for interpolating images by determining an interpolation filter coefficient. An image interpolation method is disclosed that takes into account smoothing for generating the pixel value of at least one subpixel unit, in which method: an interpolation filter is selected from among interpolation filters for generating the pixel value(s) of at least one subpixel unit positioned between pixel units, the selection being performed in a fashion which differs based on the interpolation position and smoothness of the subpixel unit(s); and the selected interpolation filter is used in order to interpolate pixel values of pixel-unit pixels.

Abstract translation: 提供了一种通过确定内插滤波器系数来内插图像的方法。 公开了一种图像插值方法，其考虑了用于生成至少一个子像素单元的像素值的平滑，其中：从用于生成至少一个子像素单元的像素值的插值滤波器中选择插值滤波器 位于像素单元之间，所述选择以基于子像素单元的插值位置和平滑度而不同的方式执行; 并且使用选择的插值滤波器以插值像素单元像素的像素值。

公开(公告)号：WO2011071328A3

公开(公告)日：2011-11-10

申请号：PCT/KR2010008822

申请日：2010-12-09

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHINA ELENA ,  ALSHIN ALEXANDER ,  SEREGIN VADIM ,  SHLYAKHOV NIKOLAY

IPC: H04N7/32 ,  H04N7/24

CPC classification number: H04N19/85 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/134 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: Disclosed are a video encoding method and apparatus and a video decoding method and apparatus. The method of encoding video includes: producing a first predicted coding unit of a current coding unit, which is to be encoded; determining whether the current coding unit comprises a portion located outside a boundary of a current picture; and producing a second predicted coding unit is produced by changing a value of pixels of the first predicted coding unit by using the pixels of the first predicted coding unit and neighboring pixels of the pixels when the current coding unit does not include a portion located outside a boundary of the current picture. Accordingly, a residual block that is the difference between the current encoding unit and the second predicted encoding unit, can be encoded, thereby improving video prediction efficiency.

Abstract translation: 公开了视频编码方法和装置以及视频解码方法和装置。 编码视频的方法包括：产生要被编码的当前编码单元的第一预测编码单元; 确定当前编码单元是否包括位于当前图像边界之外的部分; 并且当当前编码单元不包括位于外部的部分时，通过使用第一预测编码单元的像素和像素的相邻像素来改变第一预测编码单元的像素的值来产生第二预测编码单元 当前图片的边界。 因此，可以编码作为当前编码单元和第二预测编码单元之间的差的残差块，从而提高视频预测效率。

公开(公告)号：WO2010002214A3

公开(公告)日：2010-03-25

申请号：PCT/KR2009003634

申请日：2009-07-02

Applicant: SAMSUNG ELECTRONICS CO LTD ,  ALSHINA ELENA ,  ALSHIN ALEXANDER ,  SEREGIN VADIM ,  SHLYAKHOV NIKOLAY ,  KOROTEEV MAXIM

Inventor： ALSHINA ELENA ,  ALSHIN ALEXANDER ,  SEREGIN VADIM ,  SHLYAKHOV NIKOLAY ,  KOROTEEV MAXIM

IPC: H04N7/32 ,  H04N7/24

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: The present invention discloses an image encoding method and device that generates a first predictive encoding unit for the current encoding unit to be encoded, that generates a second predictive encoding by changing the pixel value of each pixel of the first predictive encoding unit using each pixel constituting the first predictive encoding unit and at least one peripheral pixel, and that improves the prediction efficiency of images by encoding the value of the difference between the current encoding unit and the second predictive encoding unit, and a decoding method and device therefor.

Abstract translation: 本发明公开了一种图像编码方法和装置，其生成用于要编码的当前编码单元的第一预测编码单元，其通过使用构成的每个像素改变第一预测编码单元的每个像素的像素值来生成第二预测编码 第一预测编码单元和至少一个外围像素，并且通过对当前编码单元和第二预测编码单元之间的差的值进行编码来提高图像的预测效率，以及解码方法和装置。

公开(公告)号：WO2018124720A1

公开(公告)日：2018-07-05

申请号：PCT/KR2017015525

申请日：2017-12-27

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHINA ELENA ,  ZAKHARCHENKO VLADYSLAV ,  ALSHIN ALEXANDER ,  CHOI KWANG-PYO

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/184

Abstract: A method and an apparatus for encoding and decoding a 360-degree image are disclosed. The disclosed method and apparatus for decoding an image according to one embodiment: acquire image data from a bit stream; decode a projection image of a 360-degree image from the image data; convert the projection image into the 360-degree image; acquire rotation information on the 360-degree image from the bit stream; and restore an original 360-degree image by rotating the 360-degree image on the basis of the rotation information.

公开(公告)号：WO2011126309A3

公开(公告)日：2012-01-26

申请号：PCT/KR2011002426

申请日：2011-04-06

Applicant: SAMSUNG ELECTRONICS CO LTD ,  ALSHIN ALEXANDER ,  ALSHINA ELENA ,  SHLYAKHOV NIKOLAY ,  LEE TAMMY

Inventor： ALSHIN ALEXANDER ,  ALSHINA ELENA ,  SHLYAKHOV NIKOLAY ,  LEE TAMMY

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/00703 ,  H04N19/176 ,  H04N19/182 ,  H04N19/537 ,  H04N19/577

Abstract: Disclosed are a method and an apparatus for video encoding using bidirectional motion compensation in pixel units and a method and an apparatus for video decoding. The method for video encoding according to one embodiment of the present invention is characterized in that the bidirectional motion compensation in block units for a present block is performed, the motion compensation in pixel units for each pixel of the present block is additionally performed by using pixels of first and second and reference pictures which are used for bidirectional motion prediction and compensation, a bidirectional motion prediction value for the present block is generated by using the result of the bidirectional motion compensation in block units and the result of the motion compensation in pixel units.

Abstract translation: 公开了一种使用像素单位双向运动补偿的视频编码的方法和装置，以及用于视频解码的方法和装置。 根据本发明的一个实施例的用于视频编码的方法的特征在于，执行用于当前块的以块为单位的双向运动补偿，通过使用像素来附加地执行对于当前块的每个像素的像素单位的运动补偿 第一和第二以及用于双向运动预测和补偿的参考图像，通过以块为单位使用双向运动补偿的结果和以像素单位的运动补偿的结果来生成用于当前块的双向运动预测值 。

公开(公告)号：WO2011016702A3

公开(公告)日：2011-04-21

申请号：PCT/KR2010005187

申请日：2010-08-06

Applicant: SAMSUNG ELECTRONICS CO LTD ,  ALSHIN ALEXANDER ,  ALSHINA ELENA ,  SHLYAKHOV NIKOLAY ,  HAN WOO-JIN

Inventor： ALSHIN ALEXANDER ,  ALSHINA ELENA ,  SHLYAKHOV NIKOLAY ,  HAN WOO-JIN

IPC: H04N7/24 ,  H04N7/30

CPC classification number: H04N19/18 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/61 ,  H04N19/895

Abstract: Disclosed are a method and an apparatus for encoding images, and a method and an apparatus for decoding encoded images which substitute predetermined values for transform coefficients of low frequency components to be predicted within transform coefficients of transform blocks, generate incomplete residual blocks by inversely transforming the transform blocks including the substituted transform coefficients, and predict the transform coefficients of the low frequency components using values of the incomplete residual blocks.

Abstract translation: 公开了一种用于编码图像的方法和装置，以及用于对编码图像进行解码的编码图像的方法和装置，该编码图像将变换块的变换系数内的低频分量的变换系数的变换系数代入预定值​​，通过逆变换 包括取代的变换系数的变换块，并使用不完全残差块的值来预测低频分量的变换系数。

公开(公告)号：WO2013002619A3

公开(公告)日：2013-03-14

申请号：PCT/KR2012005244

申请日：2012-07-02

Applicant: SAMSUNG ELECTRONICS CO LTD ,  ALSHINA ELENA ,  ALSHIN ALEXANDER

Inventor： ALSHINA ELENA ,  ALSHIN ALEXANDER

IPC: H04N7/30 ,  H04N19/89

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: Disclosed are a video encoding method which adjusts the range of output data, which has been encoded so that the bit depth can be controlled during the decoding process of encoded samples, and a video decoding method, which prevents overflow of output data in each step of the decoding process. The video decoding method comprises: decoding by parsing quantized conversion factors for each block in an image from a received bitstream; decoding conversion factors which are less than or equal to a first bit depth by executing an inversion quantization of the quantized conversion factors; and decoding samples which are less than or equal to a second bit depth by executing a first level quantization and inverse scaling of the conversion factors.

Abstract translation: 公开了一种视频编码方法，其调节已编码的输出数据的范围，使得可以在编码样本的解码处理期间控制比特深度，以及视频解码方法，其防止每个步骤中的输出数据的溢出 解码过程。 视频解码方法包括：通过从接收到的比特流解码图像中的每个块的量化转换因子进行解码; 通过执行量化的转换因子的反转量化来解码小于或等于第一位深度的转换因子; 以及通过执行转换因子的第一级量化和反缩放来解码小于或等于第二位深度的样本。

公开(公告)号：WO2011126272A3

公开(公告)日：2012-01-26

申请号：PCT/KR2011002372

申请日：2011-04-05

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHINA ELENA ,  ALSHIN ALEXANDER ,  HAN WOO-JIN ,  LEE TAMMY ,  HONG YOON-MI

IPC: H04N7/32 ,  H04N7/24

CPC classification number: H04N19/61 ,  H04N19/98

Abstract: Provided is a method and apparatus for encoding a video by using dynamic range transformation based on content and a method and apparatus for decoding a video by using dynamic range transformation based on content. The encoding method includes: performing inter prediction, through motion estimation, and intra prediction for a current region using image data in which a dynamic range of the current region is transformed based on content of an image of input video; performing transformation on residual data generated by the intra prediction and the inter prediction and performing quantization on a transformation coefficient generated by the transformation; and performing entropy encoding on the quantized transformation coefficient.

Abstract translation: 提供了一种通过使用基于内容的动态范围变换来编码视频的方法和装置，以及通过使用基于内容的动态范围变换来解码视频的方法和装置。 编码方法包括：使用基于输入图像的图像的内容对当前区域的动态范围进行变换的图像数据，通过运动估计和当前区域的帧内预测进行帧间预测; 对由帧内预测和帧间预测生成的残差数据进行变换，对由变换生成的变换系数进行量化; 对量化的变换系数进行熵编码。

公开(公告)号：WO2011126273A3

公开(公告)日：2012-01-12

申请号：PCT/KR2011002373

申请日：2011-04-05

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHIN ALEXANDER ,  ALSHINA ELENA ,  SHLYAKHOV NIKOLAY

IPC: H04N7/24

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: A method and apparatus of encoding and decoding a video by compensating for a pixel value are provided, 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来对视频进行编码和解码的方法和装置，编码视频的方法包括：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：WO2011053021A3

公开(公告)日：2011-08-25

申请号：PCT/KR2010007487

申请日：2010-10-28

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHINA ELENA ,  ALSHIN ALEXANDER ,  SEREGIN VADIM

IPC: H04N7/30 ,  H04N7/24

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。