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公开(公告)号：US20050128356A1
公开(公告)日：2005-06-16
申请号：US10964088
申请日：2004-10-13
摘要： The disclosure relates to a device and a method for estimating the noise level of a video signal representing image sequences. The device comprises a movement compensated interpolation means, a recursive filter designed to receive on a first input the output of the recursive filter movement compensated by the movement compensated interpolation means and on a second input the video signal, means of calculating the difference between the video signal and the output of the recursive filter movement compensated by the movement compensated interpolation means. In accordance with the principles of the invention, the device comprises means of estimating the noise level of the video signal according to the difference and a maximum threshold delimiting this difference.
摘要翻译： 本公开涉及一种用于估计表示图像序列的视频信号的噪声电平的装置和方法。 该装置包括移动补偿内插装置，递归滤波器被设计为在第一输入端接收由运动补偿内插装置补偿的递归滤波器运动的输出，并且在第二输入端接收视频信号，计算视频之间的差异的装置 信号和由运动补偿内插装置补偿的递归滤波器运动的输出。 根据本发明的原理，该装置包括根据该差异估计视频信号的噪声电平的装置和限定该差异的最大阈值。
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公开(公告)号：US20050094035A1
公开(公告)日：2005-05-05
申请号：US10958904
申请日：2004-10-05
CPC分类号： H04N5/21
摘要： The disclosure relates to a device and to a method for noise reduction of a video signal. The device is comprised of the following components. A motion-compensated interpolation means, a recursive filter intended to receive the output of the recursive filter motion-compensated by the interpolation means at a first input, and the video signal at a second input; means for calculating the difference between the video signal and the output of the recursive filter motion-compensated by the interpolation means; wherein the device includes means for providing the first input of the recursive filter either with the video signal if the difference is greater than a predetermined noise level threshold, or the motion-compensated output of the recursive filter, if the difference is less than the said predetermined noise level threshold.
摘要翻译： 本公开涉及一种用于视频信号的降噪的装置和方法。 该设备由以下组件组成。 运动补偿插值装置，用于接收在第一输入处由插值装置运动补偿的递归滤波器的输出的递归滤波器，以及第二输入端的视频信号; 用于计算由所述插值装置运动补偿的所述视频信号与所述递归滤波器的输出之间的差的装置; 其中所述设备包括用于如果所述差异大于预定噪声电平阈值或所述递归滤波器的运动补偿输出，则所述递归滤波器的第一输入或者与所述视频信号相提供的装置，如果所述差值小于所述 预定噪声电平阈值。
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3.发明申请Device and method for preprocessing prior to coding of a sequence of images 审中-公开在编码图像序列之前进行预处理的装置和方法公开(公告)号：US20050185716A1
公开(公告)日：2005-08-25
申请号：US11062516
申请日：2005-02-22
摘要： The invention relates to a method and a device for preprocessing prior to coding of a sequence of images. the device comprises means of estimation of motion, for each pixel of the current frame, between the current pixel and the corresponding pixel of the previous frame and of the previous frame of like parity.
摘要翻译： 本发明涉及一种用于在编码图像序列之前进行预处理的方法和装置。 该装置包括针对当前帧的当前像素和先前帧的相应像素和相似奇偶校验的先前帧之间的当前帧的每个像素的运动估计的装置。
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4.发明授权公开(公告)号：US08537904B2
公开(公告)日：2013-09-17
申请号：US11630071
申请日：2005-06-22
IPC分类号： H04N7/12
CPC分类号： G06T5/30 , H04N19/117 , H04N19/14 , H04N19/182 , H04N19/85
摘要： The invention relates to a method of processing an image of a video image sequence, wherein it comprises the following successive steps: a step for computing a complexity value representative of the complexity of said image; a first step of morphological processing applied on said image, said first step generating a first processed image; a second step for mixing said image and said first processed image depending on said complexity value, said second step generating a mixed image; a third step of morphological processing applied on said mixed image, said third step generating a second processed image; and a fourth step for mixing said mixed image and said second processed image depending on said complexity value.
摘要翻译： 本发明涉及一种处理视频图像序列的图像的方法，其中它包括以下连续步骤：计算表示所述图像的复杂度的复杂度值的步骤; 对所述图像应用的形态处理的第一步骤，所述第一步骤生成第一处理图像; 第二步骤，用于根据所述复杂度值混合所述图像和所述第一处理图像，所述第二步骤产生混合图像; 在所述混合图像上应用形态处理的第三步骤，所述第三步骤产生第二处理图像; 以及第四步骤，用于根据所述复杂度值混合所述混合图像和所述第二处理图像。
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5.发明申请公开(公告)号：US20080152021A1
公开(公告)日：2008-06-26
申请号：US11630071
申请日：2005-06-22
IPC分类号： H04N7/12
CPC分类号： G06T5/30 , H04N19/117 , H04N19/14 , H04N19/182 , H04N19/85
摘要： The invention relates to a method of processing an image of a video image sequence, wherein it comprises the following successive steps: a step for computing a complexity value representative of the complexity of said image; a first step of morphological processing applied on said image, said first step generating a first processed image; a second step for mixing said image and said first processed image depending on said complexity value, said second step generating a mixed image; a third step of morphological processing applied on said mixed image, said third step generating a second processed image; and a fourth step for mixing said mixed image and said second processed image depending on said complexity value.
摘要翻译： 本发明涉及一种处理视频图像序列的图像的方法，其中它包括以下连续步骤：计算表示所述图像的复杂度的复杂度值的步骤; 对所述图像应用的形态处理的第一步骤，所述第一步骤生成第一处理图像; 第二步骤，用于根据所述复杂度值混合所述图像和所述第一处理图像，所述第二步骤产生混合图像; 在所述混合图像上应用形态处理的第三步骤，所述第三步骤产生第二处理图像; 以及第四步骤，用于根据所述复杂度值混合所述混合图像和所述第二处理图像。
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公开(公告)号：US20060176958A1
公开(公告)日：2006-08-10
申请号：US11324857
申请日：2006-01-04
CPC分类号： H04N19/115 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/172 , H04N19/467 , H04N19/503 , H04N19/63 , H04N19/85
摘要： The invention relates to a method and a device for analysing video images. According to the invention the device comprises: means of obtaining the high-frequency components of an image, means of obtaining a high-frequency image on the basis of the said high-frequency components, means of calculating the variance for each pixel of the said high-frequency image, means of associating a coefficient with each pixel of the image as a function of the said variance, the said coefficient being representative of the visual sensitivity of each pixel for the human eye.
摘要翻译： 本发明涉及一种用于分析视频图像的方法和装置。 根据本发明，该装置包括：获得图像的高频分量的装置，基于所述高频分量获得高频图像的装置，计算所述高频分量的每个像素的方差的装置 高频图像是将系数与图像的每个像素相关联的装置，作为所述方差的函数，所述系数表示人眼每个像素的视觉灵敏度。
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7.发明授权Device and method for analysing images by calculating the variance for each pixel of a high-frequency image 有权通过计算高频图像的每个像素的方差来分析图像的装置和方法公开(公告)号：US08437403B2
公开(公告)日：2013-05-07
申请号：US11324857
申请日：2006-01-04
CPC分类号： H04N19/115 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/172 , H04N19/467 , H04N19/503 , H04N19/63 , H04N19/85
摘要： A method and device for analysing video images by obtaining high frequency components. The device includes means for obtaining high-frequency components of a video image and means for obtaining a high-frequency image on the basis of the high-frequency components. Means for calculating the variance for each pixel of the high-frequency image. Means for associating a coefficient with each pixel of the video image as a function of the variance. The coefficient is representative of the visual sensitivity of each pixel for the human eye. The invention relates to a method and a device for analysing video images.
摘要翻译： 一种通过获得高频分量来分析视频图像的方法和装置。 该装置包括用于获得视频图像的高频分量的装置和用于基于高频分量获得高频图像的装置。 用于计算高频图像的每个像素的方差的装置。 用于将系数与视频图像的每个像素相关联的装置作为方差的函数。 该系数代表人眼每个像素的视觉灵敏度。 本发明涉及一种用于分析视频图像的方法和装置。
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公开(公告)号：US07548277B2
公开(公告)日：2009-06-16
申请号：US10964088
申请日：2004-10-13
IPC分类号： H04N5/217
摘要： The disclosure relates to a device and a method for estimating the noise level of a video signal representing image sequences. The device comprises a movement compensated interpolation means, a recursive filter designed to receive on a first input the output of the recursive filter movement compensated by the movement compensated interpolation means and on a second input the video signal, means of calculating the difference between the video signal and the output of the recursive filter movement compensated by the movement compensated interpolation means. In accordance with the principles of the invention, the device comprises means of estimating the noise level of the video signal according to the difference and a maximum threshold delimiting this difference.
摘要翻译： 本公开涉及一种用于估计表示图像序列的视频信号的噪声电平的装置和方法。 该装置包括移动补偿内插装置，递归滤波器被设计为在第一输入端接收由运动补偿内插装置补偿的递归滤波器运动的输出，并且在第二输入端接收视频信号，计算视频之间的差异的装置 信号和由运动补偿内插装置补偿的递归滤波器运动的输出。 根据本发明的原理，该装置包括根据差异估计视频信号的噪声电平的装置和限定该差异的最大阈值。
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公开(公告)号：US07268835B2
公开(公告)日：2007-09-11
申请号：US10958904
申请日：2004-10-05
IPC分类号： H04N5/00
CPC分类号： H04N5/21
摘要： The disclosure relates to a device and to a method for noise reduction of a video signal. The device is comprised of the following components. A motion-compensated interpolation means, a recursive filter intended to receive the output of the recursive filter motion-compensated by the interpolation means at a first input, and the video signal at a second input; means for calculating the difference between the video signal and the output of the recursive filter motion-compensated by the interpolation means; wherein the device includes means for providing the first input of the recursive filter either with the video signal if the difference is greater than a predetermined noise level threshold, or the motion-compensated output of the recursive filter, if the difference is less than the said predetermined noise level threshold.
摘要翻译： 本公开涉及一种用于视频信号的降噪的装置和方法。 该设备由以下组件组成。 运动补偿插值装置，用于接收在第一输入处由插值装置运动补偿的递归滤波器的输出的递归滤波器，以及第二输入端的视频信号; 用于计算由所述插值装置运动补偿的所述视频信号与所述递归滤波器的输出之间的差的装置; 其中所述设备包括用于如果所述差异大于预定噪声电平阈值或所述递归滤波器的运动补偿输出，则所述递归滤波器的第一输入或者与所述视频信号相提供的装置，如果所述差值小于所述 预定噪声电平阈值。
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公开(公告)号：US20060187355A1
公开(公告)日：2006-08-24
申请号：US11345696
申请日：2006-02-02
IPC分类号： H04N5/14
CPC分类号： H04N19/537 , H04N19/172 , H04N19/182 , H04N19/56
摘要： The invention relates to a method and a device for scanning pixels in a sequence of images presenting a time recurrence. According to the invention, the order of scanning of the pixels in one and the same line is reversed from one frame to the next. Applicable to motion estimation.
摘要翻译： 本发明涉及一种在呈现时间复现的图像序列中扫描像素的方法和装置。 根据本发明，同一行中的像素的扫描顺序从一帧反转到下一帧。 适用于运动估计。
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