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公开(公告)号：US20100104027A1
公开(公告)日：2010-04-29
申请号：US12259649
申请日：2008-10-28
申请人： Jeongnam Youn , Yushin Cho , Daisuke Hiranaka
发明人： Jeongnam Youn , Yushin Cho , Daisuke Hiranaka
IPC分类号： H04N7/26
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/30 , H04N19/61 , H04N19/85
摘要： A method and apparatus for preprocessing a video signal prior to its being encoded. During preprocessing, features are extracted from the video signal into feature planes which are each adaptively filtered in response to estimations of feature activity. After feature extraction the signal which remains is referred to as a “remaining signal”, which is then noise filtered to remove a substantial portion of the noise. The feature planes and remaining signal are recombined into a preprocessed output signal configured for receipt and processing by a video encoder. A video encoder receiving the preprocessed video signal can generate higher quality and/or lower bit rate encoded video than one receiving the original source video. Preprocessing according to the invention is particularly well suited for use with encoders adapted to remove temporal and/or spatial redundancy, such as those implemented according to the MPEG2/4, or AVC/H.264 standards.
摘要翻译： 一种用于在编码视频信号之前对视频信号进行预处理的方法和装置。 在预处理期间，将特征从视频信号提取到特征平面中，每个特征平面根据特征活动的估计被自适应过滤。 在特征提取之后，剩下的信号被称为“剩余信号”，然后对其进行噪声滤波以去除大部分噪声。 特征平面和剩余信号被重新组合成被配置为由视频编码器接收和处理的预处理输出信号。 接收预处理视频信号的视频编码器可以产生比接收原始源视频的视频编码视频更高质量和/或较低比特率编码视频。 根据本发明的预处理特别适合于适用于去除时间和/或空间冗余的编码器，诸如根据MPEG2 / 4或AVC / H.264标准实现的冗余。
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公开(公告)号：US08634479B2
公开(公告)日：2014-01-21
申请号：US13746424
申请日：2013-01-22
申请人： LG Electronics Inc.
IPC分类号： H04N11/02
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/82
摘要： A method of processing a video signal is disclosed. The present invention includes receiving prediction information of a macroblock and filter information, predicting a current picture using the prediction information of the macroblock, and applying a filter using the predicted current picture and the filter information.Accordingly, accuracy of prediction can be enhanced by applying a filter to a frame predicted before a residual for a predicted frame is coded. As the residual is reduced, efficiency of video signal processing can be enhanced.
摘要翻译： 公开了一种处理视频信号的方法。 本发明包括接收宏块的预测信息和滤波器信息，使用宏块的预测信息预测当前图像，以及使用预测的当前图像和滤波器信息应用滤波器。 因此，可以通过在对预测帧的残差进行编码之前对预测的帧应用滤波器来提高预测精度。 随着残留量的减少，可以提高视频信号处理的效率。
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公开(公告)号：US20130136168A1
公开(公告)日：2013-05-30
申请号：US13746424
申请日：2013-01-22
申请人： LG ELECTRONICS INC.
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/82
摘要： A method of processing a video signal is disclosed. The present invention includes receiving prediction information of a macroblock and filer information, predicting a current picture using the prediction information of the macroblock, and applying a filter using the predicted current picture and the filter information.Accordingly, accuracy of prediction can be enhanced by applying a filter to a frame predicted before a residual for a predicted frame is coded. As the residual is reduced, efficiency of video signal processing can be enhanced.
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公开(公告)号：US08811766B2
公开(公告)日：2014-08-19
申请号：US13332949
申请日：2011-12-21
申请人： Anna Raffalli , Haiyun Wang , Lucas Hui , Patricia Wei Yin Chiang
发明人： Anna Raffalli , Haiyun Wang , Lucas Hui , Patricia Wei Yin Chiang
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/14 , H04N19/86
摘要： Systems and methods are disclosed for determining the perceptibility of noise in a block of images and/or video. The systems and methods may compute a mask value for the block using a block masking generator. The mask value may indicate the perceptibility of noise in the block. The mask value may be computed using a normalized activity value and/or a texture value for the block. The normalized activity value may indicate the relative activity in the block as compared to the activity in the image and/or video. The texture value may indicate the strength and/or number of edges in the block.
摘要翻译： 公开了用于确定图像和/或视频块中的噪声的感知性的系统和方法。 系统和方法可以使用块掩码生成器来计算块的掩码值。 掩模值可以指示块中的噪声的可感知性。 可以使用归一化活动值和/或块的纹理值来计算掩模值。 与图像和/或视频中的活动相比，归一化活动值可以指示块中的相对活动。 纹理值可以指示块中的边缘的强度和/或数量。
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公开(公告)号：US08792564B2
公开(公告)日：2014-07-29
申请号：US12259649
申请日：2008-10-28
申请人： Jeongnam Youn , Yushin Cho , Daisuke Hiranaka
发明人： Jeongnam Youn , Yushin Cho , Daisuke Hiranaka
IPC分类号： H04N7/26
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/30 , H04N19/61 , H04N19/85
摘要： A method and apparatus for preprocessing a video signal prior to its being encoded. During preprocessing, features are extracted from the video signal into feature planes which are each adaptively filtered in response to estimations of feature activity. After feature extraction the signal which remains is referred to as a “remaining signal”, which is then noise filtered to remove a substantial portion of the noise. The feature planes and remaining signal are recombined into a preprocessed output signal configured for receipt and processing by a video encoder. A video encoder receiving the preprocessed video signal can generate higher quality and/or lower bit rate encoded video than one receiving the original source video. Preprocessing according to the invention is particularly well suited for use with encoders adapted to remove temporal and/or spatial redundancy, such as those implemented according to the MPEG2/4, or AVC/H.264 standards.
摘要翻译： 一种用于在编码视频信号之前对视频信号进行预处理的方法和装置。 在预处理期间，将特征从视频信号提取到特征平面中，每个特征平面根据特征活动的估计被自适应过滤。 在特征提取之后，剩下的信号被称为“剩余信号”，然后对其进行噪声滤波以去除大部分噪声。 特征平面和剩余信号被重新组合成被配置为由视频编码器接收和处理的预处理输出信号。 接收预处理视频信号的视频编码器可以产生比接收原始源视频的视频编码视频更高质量和/或较低比特率编码视频。 根据本发明的预处理特别适用于适用于去除时间和/或空间冗余的编码器，例如根据MPEG2 / 4或AVC / H.264标准实现的冗余。
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公开(公告)号：US08385411B2
公开(公告)日：2013-02-26
申请号：US12412526
申请日：2009-03-27
IPC分类号： H04N11/02
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/82
摘要： A method of processing a video signal is disclosed. The present invention includes receiving prediction information of a macroblock and filter information, predicting a current picture using the prediction information of the macroblock, and applying a filter using the predicted current picture and the filter information. Accordingly, accuracy of prediction can be enhanced by applying a filter to a frame predicted before a residual for a predicted frame is coded. As the residual is reduced, efficiency of video signal processing can be enhanced.
摘要翻译： 公开了一种处理视频信号的方法。 本发明包括接收宏块的预测信息和滤波器信息，使用宏块的预测信息预测当前图像，以及使用预测的当前图像和滤波器信息应用滤波器。 因此，可以通过在对预测帧的残差进行编码之前对预测的帧应用滤波器来提高预测精度。 随着残留量的减少，可以提高视频信号处理的效率。
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公开(公告)号：US20120170864A1
公开(公告)日：2012-07-05
申请号：US13332949
申请日：2011-12-21
申请人： Anna Raffalli , Haiyun Wang , Lucas Hui , Patricia Chiang
发明人： Anna Raffalli , Haiyun Wang , Lucas Hui , Patricia Chiang
IPC分类号： G06K9/40
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/14 , H04N19/86
摘要： Systems and methods are disclosed for determining the perceptibility of noise in a block of images and/or video. The systems and methods may compute a mask value for the block using a block masking generator. The mask value may indicate the perceptibility of noise in the block. The mask value may be computed using a normalized activity value and/or a texture value for the block. The normalized activity value may indicate the relative activity in the block as compared to the activity in the image and/or video. The texture value may indicate the strength and/or number of edges in the block.
摘要翻译： 公开了用于确定图像和/或视频块中的噪声的感知性的系统和方法。 系统和方法可以使用块掩码生成器来计算块的掩码值。 掩模值可以指示块中的噪声的可感知性。 可以使用归一化活动值和/或块的纹理值来计算掩模值。 与图像和/或视频中的活动相比，归一化活动值可以指示块中的相对活动。 纹理值可以指示块中的边缘的强度和/或数量。
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公开(公告)号：US20090252221A1
公开(公告)日：2009-10-08
申请号：US12412526
申请日：2009-03-27
IPC分类号： H04N7/26
CPC分类号： H04N19/00066 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/82
摘要： A method of processing a video signal is disclosed. The present invention includes receiving prediction information of a macroblock and filer information, predicting a current picture using the prediction information of the macroblock, and applying a filter using the predicted current picture and the filter information.Accordingly, accuracy of prediction can be enhanced by applying a filter to a frame predicted before a residual for a predicted frame is coded. As the residual is reduced, efficiency of video signal processing can be enhanced.
摘要翻译： 公开了一种处理视频信号的方法。 本发明包括接收宏块和文件信息的预测信息，使用宏块的预测信息预测当前图像，以及使用预测的当前图像和滤波器信息应用滤波器。 因此，可以通过在对预测帧的残差进行编码之前对预测的帧应用滤波器来提高预测精度。 随着残留量的减少，可以提高视频信号处理的效率。
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