公开(公告)号：US09538184B2

公开(公告)日：2017-01-03

申请号：US14345098

申请日：2012-09-14

申请人： Elena Alshina ,  Jianle Chen ,  Woo-jin Han

发明人： Elena Alshina ,  Jianle Chen ,  Woo-jin Han

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/61 ,  H04N19/107 ,  H04N19/109 ,  H04N19/136 ,  H04N19/146 ,  H04N19/182 ,  H04N19/19 ,  H04N19/503 ,  H04N19/513 ,  H04N19/57

CPC分类号： H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/136 ,  H04N19/146 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/503 ,  H04N19/513 ,  H04N19/523 ,  H04N19/57 ,  H04N19/61

摘要： A method and apparatus for encoding and decoding a video are provided. The method of encoding the video includes: determining whether a unidirectional motion estimation mode and a bidirectional motion estimation mode are to be used based on a size of a current prediction unit to be encoded, performing the motion estimation and the motion compensation on the current prediction unit according to the determining of whether the unidirectional motion estimation mode and the bidirectional motion estimation mode are to be used, determining an optimum motion estimation mode of the current prediction unit based on an encoding cost of the current prediction unit obtained through the performing of the motion estimation and the motion compensation, and encoding information indicating the determined optimum motion estimation mode based on the size of the current prediction unit.

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：US20140233634A1

公开(公告)日：2014-08-21

申请号：US14345098

申请日：2012-09-14

申请人： Elena Alshina ,  Jianle Chen ,  Woo-jin Han

发明人： Elena Alshina ,  Jianle Chen ,  Woo-jin Han

IPC分类号： H04N19/107 ,  H04N19/182 ,  H04N19/136

CPC分类号： H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/136 ,  H04N19/146 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/503 ,  H04N19/513 ,  H04N19/523 ,  H04N19/57 ,  H04N19/61

摘要： A method and apparatus for encoding and decoding a video are provided. The method of encoding the video includes: determining whether a unidirectional motion estimation mode and a bidirectional motion estimation mode are to be used based on a size of a current prediction unit to be encoded, performing the motion estimation and the motion compensation on the current prediction unit according to the determining of whether the unidirectional motion estimation mode and the bidirectional motion estimation mode are to be used, determining an optimum motion estimation mode of the current prediction unit based on an encoding cost of the current prediction unit obtained through the performing of the motion estimation and the motion compensation, and encoding information indicating the determined optimum motion estimation mode based on the size of the current prediction unit.

摘要翻译： 提供了一种用于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：基于要编码的当前预测单元的大小来确定是否要使用单向运动估计模式和双向运动估计模式，对当前预测执行运动估计和运动补偿 根据确定是否使用单向运动估计模式和双向运动估计模式来确定当前预测单元的最佳运动估计模式;基于通过执行所述单向运动估计模式获得的当前预测单元的编码成本， 运动估计和运动补偿，以及基于当前预测单元的大小编码指示所确定的最佳运动估计模式的信息。

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：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：US08842927B2

公开(公告)日：2014-09-23

申请号：US13006652

申请日：2011-01-14

申请人： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

发明人： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

IPC分类号： G06K9/36 ,  H04N19/176 ,  H04N19/122 ,  H04N19/96 ,  H04N19/119 ,  H04N19/61 ,  H04N19/147

CPC分类号： H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

摘要： A method of encoding an image by transforming a group of prediction units into a frequency domain. A prediction unit may be predicted by using prediction values of the prediction units in the group of prediction units, instead of pixels generated by encoding and then restoring the other prediction units in the group of prediction units. Thus, an encoding compression ratio may be increased as a result of grouping the prediction units.

摘要翻译： 一种通过将一组预测单元变换成频域来对图像进行编码的方法。 可以通过使用预测单元组中的预测单元的预测值来代替通过编码生成的像素，然后恢复预测单元组中的其他预测单元来预测预测单元。 因此，作为对预测单元进行分组的结果，可以增加编码压缩比。

公开(公告)号：US08792741B2

公开(公告)日：2014-07-29

申请号：US12855884

申请日：2010-08-13

申请人： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

发明人： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC分类号： G06K9/36 ,  H04N7/50 ,  H04N7/26

CPC分类号： H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

公开(公告)号：US20140072240A1

公开(公告)日：2014-03-13

申请号：US14001618

申请日：2012-02-24

申请人： Tammy Lee ,  Il-koo Kim ,  Woo-jin Han ,  Jianle Chen

发明人： Tammy Lee ,  Il-koo Kim ,  Woo-jin Han ,  Jianle Chen

IPC分类号： G06T9/00

CPC分类号： G06T9/007 ,  G06F17/147 ,  H04N19/61 ,  H04N19/619 ,  H04N19/625

摘要： An image transformation method substitutes element based on a trigonometric function included in a discrete cosine transform (DCT) matrix with a rational number, performs upscaling and transformation process on an input signal using the substituted DCT matrix based on a maximum value of a denominator of an intermediate value generated in the transformation process, and performs downscaling on the transformed signal.

摘要翻译： 图像变换方法基于包含在具有有理数的离散余弦变换（DCT）矩阵中的三角函数来代替元素，使用基于替代DCT矩阵的分母的最大值对输入信号执行上变换和变换处理 在变换处理中生成的中间值，对变换后的信号进行缩小。

公开(公告)号：US08204320B2

公开(公告)日：2012-06-19

申请号：US13348134

申请日：2012-01-11

申请人： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

发明人： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC分类号： G06K9/36 ,  H04N7/12

CPC分类号： H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

公开(公告)号：US20080304569A1

公开(公告)日：2008-12-11

申请号：US12134657

申请日：2008-06-06

申请人： Kyo-hyuk Lee ,  Jianle Chen ,  Woo-jin Han ,  Sang-rae Lee

发明人： Kyo-hyuk Lee ,  Jianle Chen ,  Woo-jin Han ,  Sang-rae Lee

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N19/57 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52 ,  H04N19/537 ,  H04N19/543 ,  H04N19/61

摘要： Provided are a method and apparatus for encoding and decoding an image. The image encoding method includes searching for a reference block for obtaining partition information of a current block, referring to at least one reference picture; dividing the current block based on the partition information obtained from the reference block and performing inter prediction with regard to each of a plurality of partitions included in the current block; and encoding the current block based on a result of the inter prediction.

摘要翻译： 提供了一种用于对图像进行编码和解码的方法和装置。 图像编码方法包括：参考至少一个参考图片搜索用于获得当前块的分区信息的参考块; 基于从参考块获得的分区信息对当前块进行划分，并对包括在当前块中的多个分区中的每个分区执行帧间预测; 并且基于帧间预测的结果对当前块进行编码。