公开(公告)号：US09350997B2

公开(公告)日：2016-05-24

申请号：US13876778

申请日：2011-09-28

申请人： Yoon-Mi Hong ,  Woo-Jin Han ,  Min-Su Cheon ,  Jianle Chen

发明人： Yoon-Mi Hong ,  Woo-Jin Han ,  Min-Su Cheon ,  Jianle Chen

IPC分类号： G06F17/14 ,  H04N19/60 ,  H04N19/625

CPC分类号： H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

摘要： A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus, the video encoding method including producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a predetermined-size block; producing a transformed block by transforming the predetermined-size block by using the fast transform matrix; and performing scaling with respect to the transformed block to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.

摘要翻译： 一种视频编码方法，视频编码装置，视频解码方法和视频解码装置，所述视频编码方法包括：基于用于预定大小块上的频率变换的变换矩阵产生快速变换矩阵; 通过使用快速变换矩阵变换预定大小的块来产生变换的块; 并且对变换的块进行缩放以校正用于频率变换的变换矩阵与快速变换矩阵之间的差异。

公开(公告)号：US09124902B2

公开(公告)日：2015-09-01

申请号：US13877074

申请日：2011-09-30

申请人： Alexander Alshin ,  Elena Alshina ,  Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Yoon-Mi Hong

发明人： Alexander Alshin ,  Elena Alshina ,  Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Yoon-Mi Hong

IPC分类号： H04N19/86 ,  H04N19/635 ,  H04N19/43 ,  H04N19/182 ,  H04N19/59 ,  H04N19/523 ,  H04N19/117 ,  H04N19/82 ,  G06T3/40 ,  G06T5/00 ,  G06F17/17

CPC分类号： 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

摘要： Provided are a method of interpolating an image by determining interpolation filter coefficients, and an apparatus for performing the same. The method includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, based on a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the integer-pel-unit pixels.

摘要翻译： 提供了一种通过确定内插滤波器系数来内插图像的方法，以及用于执行图像的装置。 该方法包括：基于子像素单位内插位置和平滑度，从用于产生位于整数像素单位像素之间的至少一个子像素单位像素值的内插滤波器中不同地选择内插滤波器; 以及通过使用所选择的内插滤波器内插所述整数像素单位像素的像素值来生成所述至少一个子像素单位像素值。

公开(公告)号：US09049450B2

公开(公告)日：2015-06-02

申请号：US13079890

申请日：2011-04-05

申请人： Yoon-mi Hong ,  Min-su Cheon ,  Woo-jin Han

发明人： Yoon-mi Hong ,  Min-su Cheon ,  Woo-jin Han

IPC分类号： H04N7/26 ,  H04N19/36 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96 ,  H04N19/124 ,  H04N19/184 ,  H04N19/34

CPC分类号： H04N19/36 ,  H04N19/119 ,  H04N19/124 ,  H04N19/176 ,  H04N19/184 ,  H04N19/34 ,  H04N19/46 ,  H04N19/96

摘要： 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.

摘要翻译： 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：US08483501B2

公开(公告)日：2013-07-09

申请号：US13188868

申请日：2011-07-22

申请人： Tammy Lee ,  Il-Koo Kim ,  Min-Su Cheon ,  Yoon-Mi Hong

发明人： Tammy Lee ,  Il-Koo Kim ,  Min-Su Cheon ,  Yoon-Mi Hong

IPC分类号： G06K9/36

CPC分类号： G06F17/147 ,  H04N19/60

摘要： Provided are methods and apparatuses for transforming and inverse-transforming an image. The method of transforming an image includes: generating a substituted N×N transformation matrix by substituting elements of an N×N transformation matrix used for a 1-dimensional (1D) discrete cosine transform (DCT) of a N×N block of the image with values based on N variables, where N is an integer; obtaining a multiplication matrix of the substituted N×N transformation matrix and a transposed matrix of the substituted N×N transformation matrix; obtaining the N variables that enable a sum of squares of elements excluding diagonal components of the obtained multiplication matrix to be a minimum; and transforming the N×N block by using the substituted N×N transformation matrix, which is substituted with the values based on the obtained N variables.

摘要翻译： 提供了用于变换和逆变换图像的方法和装置。 变换图像的方法包括：通过代替用于图像的N×N块的一维（1D）离散余弦变换（DCT）的N×N变换矩阵的元素来生成取代的N×N变换矩阵 基于N个变量的值，其中N是整数; 获得取代的N×N变换矩阵的乘法矩阵和取代的N×N变换矩阵的转置矩阵; 获得使除去所获得的乘法矩阵的对角线分量之外的元素的平方和的总和为最小的N个变量; 并且通过使用被替换的N×N变换矩阵来变换N×N块，其被基于获得的N个变量的值代替。

公开(公告)号：US20130077682A1

公开(公告)日：2013-03-28

申请号：US13641403

申请日：2011-04-13

申请人： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

发明人： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

IPC分类号： H04N7/32

CPC分类号： H04N19/50 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

摘要： A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.

摘要翻译： 提供了一种对视频进行编码的方法，该方法包括：基于根据指示多个编码单元的深度分级配置的多个编码单元中的至少一个数据单元来确定要执行去块滤波的滤波边界 至少一个最大编码单位在空间上溢出，以及分别用于多个编码单元的预测和变换的多个预测单元和多个变换单元，基于编码的预测模式确定滤波边界处的滤波强度 基于与滤波相邻的像素属于多个编码单位的单元和与滤波边界相邻的像素的变换系数值，并且基于所确定的滤波强度对滤波边界进行去块滤波。

公开(公告)号：US20110243232A1

公开(公告)日：2011-10-06

申请号：US13079982

申请日：2011-04-05

申请人： Elena ALSHINA ,  Alexander ALSHIN ,  Woo-jin HAN ,  Tammy LEE ,  Yoon-mi HONG

发明人： Elena ALSHINA ,  Alexander ALSHIN ,  Woo-jin HAN ,  Tammy LEE ,  Yoon-mi HONG

IPC分类号： H04N7/26

CPC分类号： H04N19/61 ,  H04N19/98

摘要： 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.

摘要翻译： 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对视频进行解码的方法和装置。 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：US08676000B2

公开(公告)日：2014-03-18

申请号：US13080319

申请日：2011-04-05

申请人： Elena Alshina ,  Alexander Alshin ,  Nikolay Shlyakhov ,  Byeong-doo Choi ,  Yoon-mi Hong ,  Woo-jin Han ,  Tammy Lee

发明人： Elena Alshina ,  Alexander Alshin ,  Nikolay Shlyakhov ,  Byeong-doo Choi ,  Yoon-mi Hong ,  Woo-jin Han ,  Tammy Lee

IPC分类号： G06K9/32

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

摘要： 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.

摘要翻译： 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：US09712822B2

公开(公告)日：2017-07-18

申请号：US13641403

申请日：2011-04-13

申请人： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

发明人： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

IPC分类号： H04N7/32 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/50 ,  H04N19/147 ,  H04N19/61 ,  H04N19/96 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52 ,  H04N19/172

CPC分类号： H04N19/50 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

摘要： A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.

公开(公告)号：US20140010284A1

公开(公告)日：2014-01-09

申请号：US14001567

申请日：2012-02-24

申请人： Yoon-mi Hong ,  Il-koo Kim

发明人： Yoon-mi Hong ,  Il-koo Kim

IPC分类号： H04N7/30

CPC分类号： H04N19/176 ,  G06F17/147 ,  H04N19/126 ,  H04N19/60

摘要： Provided are image transform/inverse transform methods and apparatuses. The image transform method substitutes a trigonometric function which is included in a discrete cosine transform (DCT) matrix with a rational number, and uses a scaling matrix in a scaling process that is performed in conjunction with quantization, in order to minimize a transform error due to the substituted DCT matrix.

摘要翻译： 提供了图像变换/逆变换方法和装置。 图像变换方法将包含在具有有理数的离散余弦变换（DCT）矩阵中的三角函数代入，并且在与量化结合执行的缩放处理中使用缩放矩阵，以便最小化由于 到取代的DCT矩阵。

公开(公告)号：US20130195177A1

公开(公告)日：2013-08-01

申请号：US13876760

申请日：2011-09-28

申请人： Yoon-mi Hong ,  Woo-jin Han ,  Tammy Lee ,  Min-su Cheon ,  Vadim Seregin

发明人： Yoon-mi Hong ,  Woo-jin Han ,  Tammy Lee ,  Min-su Cheon ,  Vadim Seregin

IPC分类号： H04N7/26

CPC分类号： H04N19/625 ,  G06F17/147 ,  H04N19/132 ,  H04N19/154 ,  H04N19/156 ,  H04N19/176

摘要： An image transforming method, an image transforming apparatus, an image inverse-transforming method, and an image inverse-transforming apparatus are provided. The image transforming method includes the operations of selecting a predetermined frequency area for performing a frequency transformation with respect to an M×N (where M and N are positive integers) input block, acquiring a truncated transform matrix by selecting elements to be used for a generation of transformation coefficients which correspond to the selected frequency area from among elements of an M×N transform matrix, and generating the transformation coefficients which correspond to the selected frequency area by performing the frequency transformation by applying the truncated transform matrix to the M×N input block.

摘要翻译： 提供了图像变换方法，图像变换装置，图像逆变换方法以及图像逆变换装置。 图像变换方法包括选择用于对M×N（其中M和N是正整数）输入块执行频率变换的预定频率区域的操作，通过选择要用于 从M×N变换矩阵的元素中生成对应于所选择的频率区域的变换系数，并且通过将截断的变换矩阵应用于M×N来生成与选择的频率区域对应的变换系数 输入块。