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：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：WO2011126283A3

公开(公告)日：2012-01-12

申请号：PCT/KR2011002384

申请日：2011-04-05

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： HONG YOON-MI ,  CHEON MIN-SU ,  HAN WOO-JIN

IPC: H04N7/24

CPC classification number: H04N19/36 ,  H04N19/119 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/34 ,  H04N19/46 ,  H04N19/96

Abstract: A method of encoding a video based on a bit depth increment, the method including: determining a scaling method so that a dynamic range, which is based on a bit depth of a restored image decreased by de-scaling that is performed to decrease the bit depth increment, is identical to a dynamic range based on a bit depth of an input image, and generating an internal image having the bit depth increment by applying the scaling method to pixel values of the input image; and determining and encoding coding units having a tree structure, for each maximum coding unit of the internal image having the bit depth increment.

Abstract translation: 一种基于比特深度增量对视频进行编码的方法，所述方法包括：确定缩放方法，使得基于恢复的图像的比特深度的动态范围通过执行缩减而减少，以减少比特 深度增量与基于输入图像的位深度的动态范围相同，并且通过将缩放方法应用于输入图像的像素值来生成具有比特深度增量的内部图像; 对于具有比特深度增量的内部图像的每个最大编码单位，确定并编码具有树结构的编码单元。

公开(公告)号：WO2011142645A3

公开(公告)日：2012-03-08

申请号：PCT/KR2011003607

申请日：2011-05-16

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： ALSHINA ELENA ,  HONG YOON-MI ,  HAN WOO-JIN

IPC: H04N7/26 ,  H04N7/24

CPC classification number: H04N19/36 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/40 ,  H04N19/42 ,  H04N19/61 ,  H04N19/625 ,  H04N19/63 ,  H04N19/98

Abstract: Provided are a method and apparatus for encoding a video signal and a method and apparatus for decoding a video signal. The method of encoding the video signal includes: determining an optimum scaling bit depth of the video signal in consideration of a maximum bit number of an intermediate value obtained during transformation of the video signal and a maximum bit precision of the video signal; scaling the video signal according to a local shift value corresponding to a difference between the determined optimum scaling bit depth and an original bit depth of the video signal; and transforming the scaled video signal.

Abstract translation: 提供了一种用于对视频信号进行编码的方法和装置以及用于对视频信号进行解码的方法和装置。 视频信号的编码方法包括：考虑在视频信号的变换期间获得的中间值的最大位数和视频信号的最大位精度，确定视频信号的最佳缩放比特深度; 根据与确定的最佳缩放比特深度和视频信号的原始比特深度之间的差对应的本地移位值对视频信号进行缩放; 并转换缩放的视频信号。

公开(公告)号：WO2010085125A3

公开(公告)日：2010-11-04

申请号：PCT/KR2010000443

申请日：2010-01-22

Applicant: SAMSUNG ELECTRONICS CO LTD ,  LEE TAMMY ,  KIM IL-KOO ,  CHEON MIN-SU ,  HONG YOON-MI

Inventor： LEE TAMMY ,  KIM IL-KOO ,  CHEON MIN-SU ,  HONG YOON-MI

IPC: H04N7/30 ,  H04N7/24

CPC classification number: G06F17/147 ,  H04N19/60

Abstract: Disclosed are methods and devices for the transformation and the reverse transformation of images. The method for the transformation of images comprises: generating a substituted NxN transformation matrix (where N is an integer) by using values based on N variables to substitute elements constituting an NxN transformation matrix used in the one-dimensional discrete cosine transformation of a block having a size of NxN; obtaining the multiplication-product matrix of the substituted NxN transformation matrix and a transpose matrix of the substituted NxN transformation matrix; and obtaining the N variables arranged to minimise the sum of the squares of the elements still present after excluding the diagonal component of the multiplication-product matrix obtained in the way described above; and transforming the block having a size of NxN by using the NxN transformation matrix substituted with the values based on.the N variables obtained.

公开(公告)号：WO2012115487A3

公开(公告)日：2012-12-13

申请号：PCT/KR2012001447

申请日：2012-02-24

Applicant: SAMSUNG ELECTRONICS CO LTD ,  HONG YOON-MI ,  KIM IL-KOO

Inventor： HONG YOON-MI ,  KIM IL-KOO

IPC: H04N7/30

CPC classification number: H04N19/00812 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/60

Abstract: Disclosed are an image transform/inverse transform method and device. In the image transform method according to the present invention, a trigonometric function comprised in a discrete cosine transform matrix is substituted with a rational number, and transform error due to the substituted discrete cosine transform matrix is minimized by applying a scaling matrix in a scaling process which is carried out together with quantization.

Abstract translation: 公开了一种图像变换/逆变换方法和装置。 在根据本发明的图像变换方法中，包含在离散余弦变换矩阵中的三角函数被有理数代替，并且通过在缩放过程中应用缩放矩阵来最小化由于取代的离散余弦变换矩阵引起的变换误差 这与量化一起进行。

公开(公告)号：WO2012044075A3

公开(公告)日：2012-05-31

申请号：PCT/KR2011007164

申请日：2011-09-28

Applicant: SAMSUNG ELECTRONICS CO LTD ,  HONG YOON-MI ,  HAN WOO-JIN ,  LEE TAMMY ,  CHEON MIN-SU ,  SEREGIN VADIM

Inventor： HONG YOON-MI ,  HAN WOO-JIN ,  LEE TAMMY ,  CHEON MIN-SU ,  SEREGIN VADIM

IPC: H04N7/30 ,  H04N7/26

CPC classification number: H04N19/00812 ,  G06F17/147 ,  H04N19/132 ,  H04N19/154 ,  H04N19/156 ,  H04N19/176 ,  H04N19/625

Abstract: Disclosed are a method and device for the transformation and a method and device for the reverse transformation of images. According to one embodiment of the present invention, the method for the transformation of images involves acquiring a reduced transformation matrix by selecting a predetermined frequency domain for the frequency transformation of an MxN input block and by then selecting elements for generating a transformation coefficient corresponding to the frequency domain which was selected from among the elements of the MxN transformation matrix used in the frequency transformation of the MxN input block, and involves generating a transformation coefficient corresponding to the selected frequency domain by carrying out frequency transformation in which the reduced transformation matrix is applied to the MxN input block.

Abstract translation: 公开了用于图像逆变换的方法和设备以及用于图像逆变换的方法和设备。 根据本发明的一个实施例，用于图像变换的方法涉及通过为MxN输入块的频率变换选择预定的频域来获取缩小的变换矩阵，并且然后通过选择用于生成对应于 频率域，该频域是从用于MxN输入块的频率变换的MxN变换矩阵的元素中选择的，并且涉及通过执行应用缩小变换矩阵的频率变换来生成对应于所选择的频率域的变换系数 到MxN输入模块。

公开(公告)号：WO2011133008A3

公开(公告)日：2012-03-15

申请号：PCT/KR2011003006

申请日：2011-04-25

Applicant: SAMSUNG ELECTRONICS CO LTD ,  HONG YOON-MI ,  HAN WOO-JIN ,  LEE TAMMY ,  CHEON MIN-SU

Inventor： HONG YOON-MI ,  HAN WOO-JIN ,  LEE TAMMY ,  CHEON MIN-SU

IPC: H04N7/26 ,  H04N7/30

CPC classification number: H04N19/60 ,  G06F17/147

Abstract: Disclosed are a method and apparatus for transforming images and a method and apparatus for inversely transforming images. According to the present invention, trigonometric-function-based values, from among the values of elements of an NxN transform matrix used in the one-dimensional discrete cosine transform of a block having a size of NxN, are substituted with values of predetermined rational numbers, and the block having the size of NxN is transformed using the matrix having the substituted values.

Abstract translation: 公开了用于变换图像的方法和装置以及用于逆变换图像的方法和装置。 根据本发明，在尺寸为N×N的块的一维离散余弦变换中使用的N×N变换矩阵的元素的值中的基于三角函数的值被预定有理数的值代替 ，并且使用具有替换值的矩阵来变换具有N×N大小的块。

公开(公告)号：WO2012044076A3

公开(公告)日：2012-06-14

申请号：PCT/KR2011007165

申请日：2011-09-28

Applicant: SAMSUNG ELECTRONICS CO LTD ,  HONG YOON-MI ,  HAN WOO-JIN ,  CHEON MIN-SU ,  CHEN JIANLE

Inventor： HONG YOON-MI ,  HAN WOO-JIN ,  CHEON MIN-SU ,  CHEN JIANLE

IPC: H04N7/26 ,  H04N7/30

CPC classification number: H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

Abstract: Disclosed are a video encoding method and device and decoding method and device. In the video encoding method according to the present invention, a fast transformation matrix is generated based on a transformation matrix used in the frequency transformation of a block of a predetermined size, and a transform block is generated by using the fast transformation matrix to transform the block of the predetermined size, and then scaling is carried out on the transform block in order to compensate for the value of the difference between the transformation matrix used in the frequency transformation and the fast transformation matrix.

Abstract translation: 公开了一种视频编码方法和装置及其解码方法和装置。 在根据本发明的视频编码方法中，基于在预定大小的块的频率变换中使用的变换矩阵来生成快速变换矩阵，并且通过使用快速变换矩阵来生成变换块，以将 块，然后在变换块上进行缩放，以便补偿在频率变换中使用的变换矩阵与快速变换矩阵之间的差的值。

公开(公告)号：WO2011129619A3

公开(公告)日：2012-02-09

申请号：PCT/KR2011002647

申请日：2011-04-13

Applicant: SAMSUNG ELECTRONICS CO LTD ,  HAN WOO-JIN ,  ALSHINA ELENA ,  MIN JUNG-HYE ,  ALSHIN ALEXANDER ,  KIM IL-KOO ,  SHLYAKHOV NIKOLAY ,  LEE TAMMY ,  LEE SUN-IL ,  CHEON MIN-SU ,  CHEN JIANLE ,  SEREGIN VADIM ,  HONG YOON-MI

Inventor： HAN WOO-JIN ,  ALSHINA ELENA ,  MIN JUNG-HYE ,  ALSHIN ALEXANDER ,  KIM IL-KOO ,  SHLYAKHOV NIKOLAY ,  LEE TAMMY ,  LEE SUN-IL ,  CHEON MIN-SU ,  CHEN JIANLE ,  SEREGIN VADIM ,  HONG YOON-MI

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/00569 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: Disclosed is a video encoding method which involves performing deblocking filtering based on encoding units. The method of the present invention involves: determining a filtering boundary for which deblocking filtering is to be performed on the basis of at least one data unit of encoding units hierarchically configured in accordance with the depth which indicates the number of spatial partitions performed on a maximum encoding unit, prediction units for prediction of the encoding units, and transformation units for transformation of the encoding units; determining a filtering strength at the filtering boundary on the basis of a prediction mode of an encoding unit to which pixels adjacent to the determined filtering boundary belong and on the basis of transform coefficient values of pixels adjacent to the filtering boundary; and performing deblocking filtering on the basis of the determined filtering strength.

Abstract translation: 公开了一种视频编码方法，其涉及基于编码单位执行去块滤波。 本发明的方法包括：基于至少一个编码单元的数据单元确定根据指示在最大值上执行的空间分区的数量的深度的编码单元的去块滤波的滤波边界; 编码单元，用于预测编码单元的预测单元，以及用于变换编码单元的变换单元; 基于与所确定的滤波边界相邻的像素所属的编码单元的预测模式，并且基于与滤波边界相邻的像素的变换系数值，确定滤波边界处的滤波强度; 并根据确定的滤波强度进行去块滤波。