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公开(公告)号：US09160897B2
公开(公告)日：2015-10-13
申请号：US12137113
申请日：2008-06-11
IPC分类号： H04N5/228 , H04N5/14 , H04N5/232 , H04N19/527
CPC分类号： H04N5/144 , H04N5/23248 , H04N5/23261 , H04N19/527
摘要： An estimated total camera motion between temporally proximate image frames is computed. A desired component of the estimated total camera motion is determined including distinguishing an undesired component of the estimated total camera motion, and including characterizing vector values of motion between the image frames. A counter is incremented for each pixel group having a summed luminance that is greater than a threshold. A counter may be decremented for pixels that are under a second threshold, or a zero bit may be applied to pixels below a single threshold. The threshold or thresholds is/are determined based on a dynamic luminance range of the sequence. The desired camera motion is computed including representing the vector values based on final values of counts for the image frames. A corrected image sequence is generated including the desired component of the estimated total camera motion, and excluding the undesired component.
摘要翻译： 计算时间上接近的图像帧之间的估计的总相机运动。 确定所估计的总相机运动的期望分量，包括区分估计的全部相机运动的不期望分量，并且包括图像帧之间的运动的特征向量值。 对于具有大于阈值的总和亮度的每个像素组，计数器递增。 对于处于第二阈值以下的像素，计数器可以递减，或者可将零位施加到单个阈值以下的像素。 基于序列的动态亮度范围来确定阈值或阈值。 计算所需的相机运动，包括基于图像帧的计数的最终值来表示矢量值。 产生校正的图像序列，其包括所估计的全部相机运动的期望分量，并且排除不期望的分量。
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公开(公告)号：US08199222B2
公开(公告)日：2012-06-12
申请号：US12485316
申请日：2009-06-16
申请人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
发明人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
IPC分类号： H04N5/225
CPC分类号： H04N5/2355 , G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , H04N5/235 , H04N9/045
摘要： A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.
摘要翻译： 一种组合来自多个帧的图像数据以增强视频图像质量的一个或多个参数的方法包括以第一曝光持续时间获取第一图像，以及以比第一曝光持续时间短的第二曝光持续时间获取第二图像，并且 在获取第一图像之前，恰好在或之后重叠的时间，使得第一和第二图像包括大致相同的第一场景。 以这种方式，第二图像相对较锋利且曝光不足，而第一图像相对曝光较好，并且不如第二图像那样锐利。 从第一图像提取亮度和/或颜色信息并将其应用于第二图像以生成第二图像的增强版本。
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3.发明授权Adaptive PSF estimation technique using a sharp preview and a blurred image 有权使用锐利预览和模糊图像的自适应PSF估计技术公开(公告)号：US08351726B2
公开(公告)日：2013-01-08
申请号：US12820002
申请日：2010-06-21
CPC分类号： H04N5/23264 , G06T5/003 , G06T5/10 , G06T5/20 , G06T2207/10016 , G06T2207/20056 , G06T2207/20201 , H04N5/23248 , H04N5/23277
摘要： An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.
摘要翻译： 用于获取的数字图像的自适应运动估计和去模糊技术包括采用包括图像传感器的移动数字图像采集装置获取多个数字图像，图像传感器包括相对尖锐的曝光不足的参考图像和模糊图像。 对应于设备的移动估计Anb初始近似点扩散函数（PSF）。 确定不同的DC偏移点，并且基于不同的DC偏移点来计算第二PSF。
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4.发明申请Adaptive PSF Estimation Technique Using a Sharp Preview and a Blurred Image 有权自适应PSF估计技术使用夏普预览和模糊图像公开(公告)号：US20110043648A1
公开(公告)日：2011-02-24
申请号：US12820034
申请日：2010-06-21
CPC分类号： H04N5/23264 , G06T5/003 , G06T5/10 , G06T5/20 , G06T2207/10016 , G06T2207/20056 , G06T2207/20201 , H04N5/23248 , H04N5/23277
摘要： An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.
摘要翻译： 用于获取的数字图像的自适应运动估计和去模糊技术包括采用包括图像传感器的移动数字图像采集装置获取多个数字图像，图像传感器包括相对尖锐的曝光不足的参考图像和模糊图像。 对应于设备的移动估计Anb初始近似点扩散函数（PSF）。 确定不同的DC偏移点，并且基于不同的DC偏移点来计算第二PSF。
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5.发明授权Adaptive PSF estimation technique using a sharp preview and a blurred image 有权使用锐利预览和模糊图像的自适应PSF估计技术公开(公告)号：US08204330B2
公开(公告)日：2012-06-19
申请号：US12820034
申请日：2010-06-21
CPC分类号： H04N5/23264 , G06T5/003 , G06T5/10 , G06T5/20 , G06T2207/10016 , G06T2207/20056 , G06T2207/20201 , H04N5/23248 , H04N5/23277
摘要： An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.
摘要翻译： 用于获取的数字图像的自适应运动估计和去模糊技术包括采用包括图像传感器的移动数字图像采集装置获取多个数字图像，图像传感器包括相对尖锐的曝光不足的参考图像和模糊图像。 对应于设备的移动估计Anb初始近似点扩散函数（PSF）。 确定不同的DC偏移点，并且基于不同的DC偏移点来计算第二PSF。
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公开(公告)号：US20090303343A1
公开(公告)日：2009-12-10
申请号：US12485316
申请日：2009-06-16
申请人： Alexandru Drimbarean , Petronel Bigioi , Peter Corcoran , Eran Steinberg , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea
发明人： Alexandru Drimbarean , Petronel Bigioi , Peter Corcoran , Eran Steinberg , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea
CPC分类号： H04N5/2355 , G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , H04N5/235 , H04N9/045
摘要： A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.
摘要翻译： 一种组合来自多个帧的图像数据以增强视频图像质量的一个或多个参数的方法包括以第一曝光持续时间获取第一图像，以及以比第一曝光持续时间短的第二曝光持续时间获取第二图像，并且 在获取第一图像之前，恰好在或之后重叠的时间，使得第一和第二图像包括大致相同的第一场景。 以这种方式，第二图像相对较锋利且曝光不足，而第一图像相对曝光较好，并且不如第二图像那样锐利。 从第一图像提取亮度和/或颜色信息并将其应用于第二图像以生成第二图像的增强版本。
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公开(公告)号：US08698924B2
公开(公告)日：2014-04-15
申请号：US12941983
申请日：2010-11-08
申请人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
发明人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
IPC分类号： H04N9/64
CPC分类号： H04N9/646 , G06T5/003 , G06T5/009 , G06T5/40 , G06T5/50 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , G06T2207/20008 , H04N5/235 , H04N5/2355 , H04N9/045 , H04N9/68
摘要： A technique is provided for generating sharp, well-exposed, color images from low-light images. A series of under-exposed images is acquired. A mean image is computed and a sum image is generated each based on the series of under-exposed images. Chrominance variables of pixels of the mean image are mapped to chrominance variables of pixels of the sum image. Chrominance values of pixels within the series of under-exposed images are replaced with chrominance values of the sum image. A set of sharp, well-exposed, color images is generated based on the series of under-exposed images with replaced chrominance values.
摘要翻译： 提供了一种用于从低光图像产生锐利，曝光良好的彩色图像的技术。 获得一系列曝光不足的图像。 计算平均图像，并且基于一系列曝光不足的图像来生成和图像。 平均图像的像素的色度变量被映射到和图像的像素的色度变量。 未曝光图像系列中的像素的色度值被和图像的色度值代替。 基于具有替换的色度值的一系列曝光不足的图像产生一组锐利，良好曝光的彩色图像。
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公开(公告)号：US08417055B2
公开(公告)日：2013-04-09
申请号：US11856721
申请日：2007-09-18
申请人： Felix Albu , Eran Steinberg , Alexandru Drimbarean , Corneliu Florea , Adrian Zamfir , Peter Corcoran , Vlad Poenaru
发明人： Felix Albu , Eran Steinberg , Alexandru Drimbarean , Corneliu Florea , Adrian Zamfir , Peter Corcoran , Vlad Poenaru
IPC分类号： G06K9/40
CPC分类号： G06T5/003 , G06T3/4053 , G06T5/00 , G06T5/50 , G06T2207/20201
摘要： A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.
摘要翻译： 一种用于提供图像处理的方法和装置。 对于本发明的一个实施例，图像处理装置被布置成处理场景的第一相对不足曝光和清晰的图像，以及名义上为相同场景的第二相对良好曝光和模糊的图像，第一和第二图像从 各自的图像来源。 该装置将相对第一曝光不足的图像的一部分提供给自适应滤波器的输入信号; 以及第二相对良好曝光的图像的相应部分作为自适应滤波器的期望信号。 自适应滤波器产生来自输入信号和期望信号的输出信号; 并且图像发生器从输出信号构建第一滤波图像，其比第二图像相对较少地模糊。
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公开(公告)号：US20110050919A1
公开(公告)日：2011-03-03
申请号：US12820086
申请日：2010-06-21
CPC分类号： H04N5/23264 , G06T5/003 , G06T5/10 , G06T5/20 , G06T2207/10016 , G06T2207/20056 , G06T2207/20201 , H04N5/23248 , H04N5/23277
摘要： An adaptive motion estimation and deblurring technique for acquired digital images includes acquiring multiple digital images with a moving digital image acquisition device that includes an image sensor, including a relatively sharp, underexposed reference image and a blurred image. Anb initial approximate point spread function (PSF) is estimated corresponding to the moving of the device. A different DC offset point is determined and a second PSF is calculated based on the different DC offset point.
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公开(公告)号：US20080309769A1
公开(公告)日：2008-12-18
申请号：US12137113
申请日：2008-06-11
IPC分类号： H04N5/228
CPC分类号： H04N5/144 , H04N5/23248 , H04N5/23261 , H04N19/527
摘要： An estimated total camera motion between temporally proximate image frames is computed. A desired component of the estimated total camera motion is determined including distinguishing an undesired component of the estimated total camera motion, and including characterizing vector values of motion between the image frames. A counter is incremented for each pixel group having a summed luminance that is greater than a threshold. A counter may be decremented for pixels that are under a second threshold, or a zero bit may be applied to pixels below a single threshold. The threshold or thresholds is/are determined based on a dynamic luminance range of the sequence. The desired camera motion is computed including representing the vector values based on final values of counts for the image frames. A corrected image sequence is generated including the desired component of the estimated total camera motion, and excluding the undesired component.
摘要翻译： 计算时间上接近的图像帧之间的估计的总相机运动。 确定所估计的总相机运动的期望分量，包括区分估计的全部相机运动的不期望分量，并且包括图像帧之间的运动的特征向量值。 对于具有大于阈值的总和亮度的每个像素组，计数器递增。 对于处于第二阈值以下的像素，计数器可以递减，或者可将零位施加到单个阈值以下的像素。 基于序列的动态亮度范围来确定阈值或阈值。 计算所需的相机运动，包括基于图像帧的计数的最终值来表示矢量值。 产生校正的图像序列，其包括所估计的全部相机运动的期望分量，并且排除不期望的分量。
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