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公开(公告)号：US07821570B2
公开(公告)日：2010-10-26
申请号：US11290049
申请日：2005-11-30
申请人： Andrew C. Gallagher , Nathan D. Cahill , Gabriel Fielding , Lawrence A. Ray , Edward B. Gindele
发明人： Andrew C. Gallagher , Nathan D. Cahill , Gabriel Fielding , Lawrence A. Ray , Edward B. Gindele
CPC分类号： G06T5/007 , G06T5/20 , G06T5/40 , G06T2207/20012 , G06T2207/30201 , H04N5/235 , H04N5/2355
摘要： A method of adjusting exposure of a digital camera based on range information, including a digital camera capturing a first digital image at a selected exposure of a scene having objects; providing range information having two or more range values indicating the distance from the digital camera to objects in the scene; using the range information and pixel values of the captured digital image to determine an exposure adjustment amount for the selected exposure; and applying the exposure adjustment amount to the digital image to produce a second digital image with adjusted exposure.
摘要翻译： 一种基于范围信息来调整数字照相机的曝光的方法，包括在具有物体的场景的选定曝光下拍摄第一数字图像的数字照相机; 提供具有指示从数字照相机到场景中的物体的距离的两个或更多个范围值的范围信息; 使用所捕获的数字图像的范围信息和像素值来确定所选曝光的曝光调整量; 以及将所述曝光调整量应用于所述数字图像，以产生具有调节曝光的第二数字图像。
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2.发明授权公开(公告)号：US07024054B2
公开(公告)日：2006-04-04
申请号：US10256900
申请日：2002-09-27
IPC分类号： G06K9/36
摘要： A technique for producing a foreground mask from a digital image is based on receiving two digital images, wherein a first digital image is derived from a first original scene image including a foreground photographed against a background having arbitrary and unknown content matter, and a second digital image is derived from a second original scene image including substantially the same background but without the foreground. The second digital image is automatically aligned to the first digital image without user intervention to generate an aligned digital image including the background without the foreground. Then, using the first digital image and the aligned digital image, a foreground mask is produced relating to the spatial regions in the first digital image pertaining to the foreground, whereby the foreground mask is subsequently used to generate a composite digital image.
摘要翻译： 一种用于从数字图像产生前景蒙版的技术是基于接收两个数字图像，其中第一数字图像是从第一原始场景图像导出的，该第一原始场景图像包括针对具有任意和未知内容物质的背景拍摄的前景，以及第二数字图像 图像从包括基本上相同的背景但没有前景的第二原始场景图像导出。 第二数字图像在没有用户干预的情况下自动对准第一数字图像，以产生包括背景而不具有前景的对准的数字图像。 然后，使用第一数字图像和对准的数字图像，产生与属于前景的第一数字图像中的空间区域相关的前景掩模，由此前景掩模随后用于生成复合数字图像。
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3.发明授权Method and system for generating a low resolution image from a sparsely sampled extended dynamic range image sensing device 有权用于从稀疏采样的扩展动态范围图像感测装置生成低分辨率图像的方法和系统公开(公告)号：US06873442B1
公开(公告)日：2005-03-29
申请号：US09707635
申请日：2000-11-07
CPC分类号： G06T3/4007 , H04N5/23293 , H04N5/235 , H04N9/045
摘要： A method of producing a low resolution image from a sparsely sampled extended dynamic range digital image, including the steps of: providing a sparsely sampled extended dynamic range image sensing device having fast photosites with a predetermined response to light exposure interspersed with slow photosites with a slower response to the same light exposure; using the image sensor to produce a sparsely sampled high resolution digital image having fast pixel values produced by the fast photosites and slow pixel values produced by the slow photosites; and constructing a low resolution digital image from the sparsely sampled high resolution digital image by using only slow pixel values or only fast pixel values from the sparsely sampled high resolution digital image.
摘要翻译： 一种从稀疏采样的扩展动态范围数字图像产生低分辨率图像的方法，包括以下步骤：提供具有快速光斑的稀疏采样的扩展动态范围图像感测装置，其具有对具有较慢光照的散射的预定响应 对相同的曝光反应; 使用图像传感器产生具有由快速光斑产生的快速像素值和由慢光斑产生的慢像素值的稀疏采样的高分辨率数字图像; 并且通过仅使用慢像素值或仅来自稀疏采样的高分辨率数字图像的快速像素值，从稀疏采样的高分辨率数字图像构建低分辨率数字图像。
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4.发明授权Method and system of noise removal for a sparsely sampled extended dynamic range image sensing device 有权用于稀疏采样的扩展动态范围图像感测装置的噪声去除方法和系统公开(公告)号：US06646246B1
公开(公告)日：2003-11-11
申请号：US09718882
申请日：2000-11-21
IPC分类号： H04N5225
摘要： A method of removing noise from a sparsely sampled extended dynamic range image produced by a sparsely sampled extended dynamic range image sensing device having fast photosites with a predetermined response to a light exposure for producing fast pixel values and slow photosites with a slower response to the same light exposure for producing slow pixel values, includes the steps of: providing a sparsely sampled extended dynamic range digital image having fast and slow pixel values; using a noise filter method to remove noise from the sparsely sampled extended dynamic range digital image by using only slow pixel values to generate slow noise reduced pixel values and using only fast pixel values to generate fast noise reduced pixel values; and combining the slow noise reduced pixel values and the fast noise reduced pixel values to generate a noise reduced sparsely sampled digital image.
摘要翻译： 从由稀疏采样的扩展动态范围图像感测装置产生的稀疏采样的扩展动态范围图像中消除噪声的方法，所述扩展动态范围图像感测装置具有具有对曝光的预定响应的快速光斑以产生具有较慢响应的快速像素值和慢光子 用于产生慢像素值的曝光包括以下步骤：提供具有快和慢像素值的稀疏采样的扩展动态范围数字图像; 使用噪声滤波器方法通过仅使用慢像素值来产生慢噪声降低的像素值并且仅使用快速像素值来生成快速降噪像素值，以从稀疏采样的扩展动态范围数字图像中去除噪声; 以及组合慢噪声降低的像素值和快速降低噪声的像素值以生成噪声减少的稀疏采样的数字图像。
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5.发明授权Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling 有权具有优惠色彩映射和场景相关音调缩放的场景的彩色图像再现公开(公告)号：US06594388B1
公开(公告)日：2003-07-15
申请号：US09578463
申请日：2000-05-25
IPC分类号： G06K900
CPC分类号： H04N1/6027 , H04N1/6072
摘要： A method for enhancing the hue and lightness characteristics of a digital color image, the digital color image having pixel values from which digital luminance and color difference values can be deduced, includes the steps of: deducing digital luminance and digital color difference values for pixels of the digital color image; using the pixels of the digital color image to calculate an image dependent transform; using the image dependent transform to modify the digital luminance values for pixels of the digital color image to form modified luminance values; calculating a color transform that modifies the original digital color difference values in a manner that consistently and smoothly moves the values toward or away from predetermined digital color difference values; and using the color transform to modify the original color difference values for pixels of the digital color image to produce modified color difference values.
摘要翻译： 一种用于增强数字彩色图像的色相和亮度特性的方法，具有可从其推导数字亮度和色差值的像素值的数字彩色图像包括以下步骤：将数字亮度和数字色差值推算为 数字彩色图像; 使用数字彩色图像的像素来计算图像相关变换; 使用图像相关变换来修改数字彩色图像的像素的数字亮度值，以形成修正的亮度值; 计算以一致且平滑地将数值移动到或远离预定数字色差值的方式修改原始数字色差值的颜色变换; 并使用颜色变换来修改数字彩色图像的像素的原始色差值，以产生修改的色差值。
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公开(公告)号：US08073318B2
公开(公告)日：2011-12-06
申请号：US12106378
申请日：2008-04-21
IPC分类号： G03B41/00
摘要： A method for producing a distance map of scene distance values for a digital image captured by a digital camera includes capturing a first digital image of a scene under a first illumination condition, wherein the first digital image includes a plurality of pixels and the scene includes a plurality of scene objects located at different distances from the digital camera, capturing a second digital image of the scene under a second illumination condition that is different from the first illumination condition, and using the first and second digital images to produce a distance map having a plurality of scene distance values, wherein each scene distance value relates to the distance between the digital camera and the corresponding scene object.
摘要翻译： 用于产生由数字照相机拍摄的数字图像的场景距离值的距离图的方法包括：在第一照明条件下拍摄场景的第一数字图像，其中所述第一数字图像包括多个像素，并且所述场景包括 位于与数字照相机不同距离的多个场景对象，在与第一照明条件不同的第二照明条件下拍摄场景的第二数字图像，并且使用第一和第二数字图像来产生具有 多个场景距离值，其中每个场景距离值涉及数字照相机和对应的场景对象之间的距离。
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公开(公告)号：US07389041B2
公开(公告)日：2008-06-17
申请号：US11048463
申请日：2005-02-01
摘要： A method for producing a distance map of scene distance values for a digital image captured by a digital camera includes capturing a first digital image of a scene under a first illumination condition, wherein the first digital image includes a plurality of pixels and the scene includes a plurality of scene objects located at different distances from the digital camera, capturing a second digital image of the scene under a second illumination condition that is different from the first illumination condition, and using the first and second digital images to produce a distance map having a plurality of scene distance values, wherein each scene distance value relates to the distance between the digital camera and the corresponding scene object.
摘要翻译： 用于产生由数字照相机拍摄的数字图像的场景距离值的距离图的方法包括：在第一照明条件下拍摄场景的第一数字图像，其中所述第一数字图像包括多个像素，并且所述场景包括 位于与数字照相机不同距离的多个场景对象，在与第一照明条件不同的第二照明条件下拍摄场景的第二数字图像，并且使用第一和第二数字图像来产生具有 多个场景距离值，其中每个场景距离值涉及数字照相机和对应的场景对象之间的距离。
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公开(公告)号：US07245781B2
公开(公告)日：2007-07-17
申请号：US10692220
申请日：2003-10-23
IPC分类号： G06K9/40
摘要： A method of applying a tone scale function that is compressive, expansive or a combination of both to a digital image, the method including decomposing the tone scale function into two or more composite functions that can be applied sequentially to the digital image; applying the first composite function to the digital image with a tone scale applicator to produce a tone scaled digital image; and applying the second composite function to the tone scaled digital image to produced an enhanced digital image.
摘要翻译： 一种将压缩，扩展或两者的组合应用于数字图像的色阶函数的方法，所述方法包括将色调函数分解为可以顺序应用于数字图像的两个或更多个复合函数; 使用色阶施加器将第一复合函数应用于数字图像以产生色调数字图像; 以及将所述第二复合函数应用于色调数字图像以产生增强数字图像。
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9.发明授权Enhancing the tonal and color characteristics of digital images using expansive and compressive tone scale functions 有权使用扩展和压缩色阶函数增强数字图像的色调和色彩特性公开(公告)号：US07130485B2
公开(公告)日：2006-10-31
申请号：US10263113
申请日：2002-10-02
IPC分类号： G06K9/40
CPC分类号： H04N1/4072 , G06T5/009 , H04N1/60 , H04N1/6005
摘要： A method of enhancing the tonal and chrominance characteristics of a digital image, includes receiving a source digital image including wherein the source digital image is in a luminance-chrominance representation having a luminance digital image channel and at least two chrominance digital image channels; producing a tone scale function that can be used to enhance the tonal characteristics of the source digital image; classifying the tone scale function into one of two or more categories based on the effect the tone scale function will have on the numerical range of pixel values of a processed digital image wherein the classification categories include expansive and compressive; using the tone scale function and the luminance digital image channel to produce an enhanced luminance digital image channel; and amplifying the chrominance digital image channels to produce modified chrominance digital channels when the tone scale function has been classified as expansive.
摘要翻译： 一种增强数字图像的色调和色度特性的方法，包括：接收源数字图像，其中源数字图像是具有亮度数字图像通道和至少两个色度数字图像通道的亮度色度表示; 产生可用于增强源数字图像的色调特征的色阶函数; 基于色阶函数对已处理数字图像的像素值的数值范围将产生的影响，其中分类类别包括扩展和压缩，将色调函数分类为两个或更多个类别中的一个; 使用色阶函数和亮度数字图像通道来产生增强的亮度数字图像通道; 并且当色阶函数被分类为广泛时，放大色度数字图像通道以产生修改的色度数字通道。
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10.发明授权Method and apparatus for performing tone scale modifications on a sparsely sampled extended dynamic range digital image 有权在稀疏采样的扩展动态范围数字图像上执行色调修改的方法和装置公开(公告)号：US07068396B1
公开(公告)日：2006-06-27
申请号：US09718991
申请日：2000-11-21
IPC分类号： H04N1/40
CPC分类号： H04N9/045 , H04N1/407 , H04N5/35563
摘要： A method of generating a tone scale function for a sparsely sampled extended dynamic range digital image, includes the steps of: providing a sparsely sampled extended dynamic range image sensing device having fast photosites with a predetermined response to light exposure interspersed with slow photosites with a slower response to the same light exposure; using the image sensing device to produce a sparsely sampled high resolution digital image having fast pixel values produced by the fast photosites and slow pixel values produced by the slow photosites; and generating the tone scale function using only slow pixel values from the sparsely sampled high resolution digital image.
摘要翻译： 一种生成稀疏采样的扩展动态范围数字图像的色阶函数的方法包括以下步骤：提供具有快速光斑的稀疏采样的扩展动态范围图像感测装置，其具有对具有较慢光照的散布的光照的预定响应 对相同的曝光反应; 使用图像感测装置产生由快速光斑产生的快速像素值和由慢光斑产生的慢像素值的稀疏采样的高分辨率数字图像; 并且仅使用来自稀疏采样的高分辨率数字图像的慢像素值产生色阶函数。
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