公开(公告)号：US08548052B2

公开(公告)日：2013-10-01

申请号：US12964688

申请日：2010-12-09

申请人： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov

发明人： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov

IPC分类号： H04N7/12

CPC分类号： H04N19/85 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/134 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： 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.

摘要翻译： 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：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：US20120195379A1

公开(公告)日：2012-08-02

申请号：US13389042

申请日：2010-08-06

申请人： Alexander Alshin ,  Elena Alshina ,  Nikolay Shlyakhov ,  Woo-Jin Han

发明人： Alexander Alshin ,  Elena Alshina ,  Nikolay Shlyakhov ,  Woo-Jin Han

IPC分类号： H04N7/32

CPC分类号： H04N19/18 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/61 ,  H04N19/895

摘要： Methods and apparatuses for encoding and decoding an image are provided. The method of encoding an image includes: replacing a transformation coefficient having a low frequency component to be predicted from among transformation coefficients of a transformation block with a predetermined value; generating an incomplete residual block by inversely transforming the transformation block including the replaced transformation coefficient; and predicting the transformation coefficient having the low frequency component by using values of the incomplete residual block.

摘要翻译： 提供了用于对图像进行编码和解码的方法和装置。 编码图像的方法包括：从具有预定值的变换块的变换系数中替换具有待预测的低频分量的变换系数; 通过逆变换包括所替换的变换系数的变换块来生成不完全残差块; 并且通过使用不完全残留块的值来预测具有低频分量的变换系数。

公开(公告)号：US20130182780A1

公开(公告)日：2013-07-18

申请号：US13877074

申请日：2011-09-30

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

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

IPC分类号： G06T5/00

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.

公开(公告)号：US20130177081A1

公开(公告)日：2013-07-11

申请号：US13697960

申请日：2011-05-16

申请人： Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Vadim Seregin

发明人： Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Vadim Seregin

IPC分类号： H04N7/26

CPC分类号： H04N19/80 ,  H04N19/523 ,  H04N19/59 ,  H04N19/82

摘要： Methods and apparatuses for encoding and decoding a video are provided. The method of encoding a video includes generating an extended corresponding block by extending a corresponding block of a reference picture; generating a filtered extended corresponding block by using a predetermined first filter; performing interpolation in sub-pixel units by using a predetermined second filter; and performing motion prediction and compensation by using the reference picture that is interpolated in the sub-pixel units. The method of decoding a video includes extracting information of a current block; generating an extended corresponding block by extending a corresponding block of a reference picture; generating a filtered extended corresponding block by applying a predetermined first filter to the extended corresponding block; performing interpolation in sub-pixel units by applying a predetermined second filter to the filtered extended corresponding block; and performing motion compensation by using the reference picture that is interpolated in the sub-pixel units.

摘要翻译： 提供了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：通过扩展参考图片的相应块来产生扩展的对应块; 通过使用预定的第一滤波器产生滤波的扩展相应块; 通过使用预定的第二滤波器以子像素单位执行内插; 以及通过使用在子像素单元内插的参考图像来执行运动预测和补偿。 解码视频的方法包括提取当前块的信息; 通过扩展参考图片的相应块来产生扩展的对应块; 通过对扩展的对应块应用预定的第一过滤器来生成经滤波的扩展对应块; 通过对经滤波的扩展对应块应用预定的第二滤波器来执行子像素单元的内插; 以及通过使用在子像素单元内插的参考图像来执行运动补偿。