公开(公告)号：US09674521B2

公开(公告)日：2017-06-06

申请号：US14130098

申请日：2012-06-28

申请人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

发明人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

IPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/50 ,  H04N19/59 ,  H04N19/593

CPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593

摘要： Provided are a method and an apparatus for predicting a chrominance signal from a luminance signal by using a correlation between the luminance and chrominance signals. A method of predicting a chrominance component image generates a down-sampled luminance signal matching a chrominance signal by independently applying various down-sampling methods according to a location of a luminance signal, and predicts a chrominance signal from the down-sampled luminance signal, while considering a size of a luminance prediction unit and a size of a chrominance prediction unit corresponding to each other according to a color format.

公开(公告)号：US10021384B2

公开(公告)日：2018-07-10

申请号：US13997524

申请日：2011-12-23

申请人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

发明人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC分类号： H04N7/26 ,  H04N19/44 ,  H04N19/46 ,  H04N19/13 ,  H04N19/593 ,  H04N19/463 ,  H04N19/186 ,  H04N19/119 ,  H04N19/11 ,  H04N19/154

CPC分类号： H04N19/13 ,  H04N19/11 ,  H04N19/119 ,  H04N19/154 ,  H04N19/186 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

摘要： Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

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：US20130272401A1

公开(公告)日：2013-10-17

申请号：US13997524

申请日：2011-12-23

申请人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

发明人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC分类号： H04N7/26

CPC分类号： H04N19/13 ,  H04N19/11 ,  H04N19/119 ,  H04N19/154 ,  H04N19/186 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

摘要： Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

摘要翻译： 提供了用于基于亮度分量的预测单元的帧内预测模式对色度分量的预测单元的帧内预测模式进行编码和解码的方法和装置。 当亮度分量的预测单元的帧内预测模式与色度分量的预测单元的帧内预测模式候选组中的帧内预测模式相同时，重建预测单元的帧内预测模式候选组， 通过从帧内预测模式候选组中排除或替换与亮度分量的预测单元的帧内预测模式相同的色度分量的预测单元的帧内预测模式，并对帧内预测模式进行编码， 通过使用重建的帧内预测模式候选组的色度分量的预测单元。

公开(公告)号：US20140140401A1

公开(公告)日：2014-05-22

申请号：US14130098

申请日：2012-06-28

申请人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

发明人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

IPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/50

CPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593

摘要： Provided are a method and an apparatus for predicting a chrominance signal from a luminance signal by using a correlation between the luminance and chrominance signals. A method of predicting a chrominance component image generates a down-sampled luminance signal matching a chrominance signal by independently applying various down-sampling methods according to a location of a luminance signal, and predicts a chrominance signal from the down-sampled luminance signal, while considering a size of a luminance prediction unit and a size of a chrominance prediction unit corresponding to each other according to a color format.

摘要翻译： 提供了一种通过使用亮度和色度信号之间的相关性来从亮度信号预测色度信号的方法和装置。 预测色度分量图像的方法通过根据亮度信号的位置独立地应用各种下采样方法来产生与色度信号匹配的下采样亮度信号，并且从下采样亮度信号预测色度信号，同时 考虑亮度预测单元的大小和根据颜色格式彼此对应的色度预测单元的大小。

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：US09414056B2

公开(公告)日：2016-08-09

申请号：US13979795

申请日：2012-01-13

申请人： Vadim Seregin ,  Jianle Chen

发明人： Vadim Seregin ,  Jianle Chen

IPC分类号： H04N7/12 ,  H04N19/129 ,  H04N19/60 ,  H04N19/96

CPC分类号： H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

摘要： Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

摘要翻译： 提供了通过选择性地确定和使用扫描模式的用于视频的编码和解码方法和装置。 视频编码方法包括：通过基于变换单元执行变换来编码图像来生成变换系数; 根据所述变换系数的特性，从多个扫描模式中确定表示所生成的变换系数的扫描方向的扫描模式; 以及基于所确定的扫描模式的扫描方向确定并输出所生成的变换系数的编码顺序。

公开(公告)号：US09661337B2

公开(公告)日：2017-05-23

申请号：US13877181

申请日：2011-09-30

申请人： Jianle Chen ,  Vadim Seregin

发明人： Jianle Chen ,  Vadim Seregin

IPC分类号： H04N19/186 ,  H04N9/825 ,  H04N19/176 ,  H04N19/593 ,  H04N19/42 ,  H04N9/873 ,  H04N11/06 ,  H04N11/24 ,  H04N11/00

CPC分类号： H04N19/186 ,  H04N9/825 ,  H04N9/873 ,  H04N11/00 ,  H04N11/002 ,  H04N11/004 ,  H04N11/006 ,  H04N11/06 ,  H04N19/176 ,  H04N19/42 ,  H04N19/593

摘要： An apparatus and method for intra-predicting an image are provided. The method includes: obtaining, based on restored neighboring pixels of a chrominance block and restored neighboring pixels of a luminance pixel corresponding to the chrominance block, parameters representing a correlation between the chrominance block that is to be intra-predicted and a luminance block; and predicting, using the parameters, the chrominance block from the luminance block, wherein the obtaining the parameters includes performing a predetermined operation on the restored neighboring pixels of the chrominance block and the restored neighboring pixels of the luminance block, and wherein the predetermined operation comprises an adaptive scaling process of changing bit depths of the parameters to reduce a size of a look-up table and prevent an occurrence of overflow.

公开(公告)号：US20130182762A1

公开(公告)日：2013-07-18

申请号：US13876703

申请日：2011-09-28

申请人： Vadim Seregin ,  Jianle Chen

发明人： Vadim Seregin ,  Jianle Chen

IPC分类号： H04N7/26

CPC分类号： H04N19/117 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/86

摘要： A filtering method and apparatus for adaptively performing deblocking filtering are provided. The method includes: obtaining a parameter indicating how close pixel values of pixels adjacent to a block boundary are with respect to a predetermined line; determining a filtering strength at the block boundary based on the parameter; and performing filtering based on the filtering strength.

摘要翻译： 提供了一种用于自适应执行去块滤波的滤波方法和装置。 该方法包括：获得指示与块边界相邻的像素的像素值相对于预定行近似近似的参数; 基于参数确定块边界处的滤波强度; 并根据滤波强度进行滤波。

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。