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公开(公告)号：US07782367B2
公开(公告)日：2010-08-24
申请号：US11818796
申请日：2007-06-14
IPC分类号： H04N5/228
CPC分类号： G06K9/209 , H04N9/045 , H04N9/735 , H04N17/002
摘要： A system for and method of determining calibration parameters while only capturing a single image is described herein. Furthermore, traditional calibration algorithms are avoided by the direct determination of the calibration parameters. The determination of the calibration parameters is possible by first determining a training data set from images acquired of a variety of objects with a multitude of colors. Then, using the training data set, regression coefficients are generated. A camera to be calibrated then acquires only one set of image information such as a single picture. Then, using the regression coefficients and the acquired information, the calibration parameters are directly estimated for that camera.
摘要翻译： 本文描述了仅捕获单个图像的确定校准参数的系统和方法。 此外，通过直接确定校准参数来避免传统的校准算法。 通过首先从具有多种颜色的各种物体获得的图像中确定训练数据集，可以确定校准参数。 然后，使用训练数据集，生成回归系数。 要校准的相机只能获取一组图像信息，例如单张图像。 然后，使用回归系数和所获取的信息，直接针对该相机估计校准参数。
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公开(公告)号：US20080310710A1
公开(公告)日：2008-12-18
申请号：US11818796
申请日：2007-06-14
IPC分类号： G06K9/00
CPC分类号： G06K9/209 , H04N9/045 , H04N9/735 , H04N17/002
摘要： A system for and method of determining calibration parameters while only capturing a single image is described herein. Furthermore, traditional calibration algorithms are avoided by the direct determination of the calibration parameters. The determination of the calibration parameters is possible by first determining a training data set from images acquired of a variety of objects with a multitude of colors. Then, using the training data set, regression coefficients are generated. A camera to be calibrated then acquires only one set of image information such as a single picture. Then, using the regression coefficients and the acquired information, the calibration parameters are directly estimated for that camera.
摘要翻译： 本文描述了仅捕获单个图像的确定校准参数的系统和方法。 此外，通过直接确定校准参数来避免传统的校准算法。 通过首先从具有多种颜色的各种物体获得的图像中确定训练数据集，可以确定校准参数。 然后，使用训练数据集，生成回归系数。 要校准的相机只能获取一组图像信息，例如单张图像。 然后，使用回归系数和所获取的信息，直接针对该相机估计校准参数。
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公开(公告)号：US07847822B2
公开(公告)日：2010-12-07
申请号：US11818801
申请日：2007-06-14
CPC分类号： H04N17/02 , H04N9/045 , H04N17/002
摘要： A system for and method of calibrating an imaging device efficiently is described herein. The imaging device acquires an image of an object that is more than one color. The information acquired is then transferred to a computing device. The information is then used to generate a set of data which represents information which was not acquired in the image. The set of data is generated based on statistical prediction using a training data set. Using acquired image information and the set of data, an imaging device is able to be calibrated. Since the process of calibration utilizing this method only requires one image to be acquired and a reduced set of image information to be sent to the computing device, the process is more efficient than previous implementations.
摘要翻译： 这里描述了一种有效地校准成像装置的系统和方法。 成像装置获取多于一种颜色的对象的图像。 然后将所获取的信息传送到计算设备。 然后，该信息用于生成表示在图像中未获取的信息的一组数据。 基于使用训练数据集的统计预测生成数据集。 使用获取的图像信息和数据集，能够对成像装置进行校准。 由于使用该方法的校准过程仅需要获取一个图像并且将减少的图像信息集合发送到计算设备，所以该处理比先前的实现更有效。
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公开(公告)号：US20080309767A1
公开(公告)日：2008-12-18
申请号：US11818801
申请日：2007-06-14
CPC分类号： H04N17/02 , H04N9/045 , H04N17/002
摘要： A system for and method of calibrating an imaging device efficiently is described herein. The imaging device acquires an image of an object that is more than one color. The information acquired is then transferred to a computing device. The information is then used to generate a set of data which represents information which was not acquired in the image. The set of data is generated based on statistical prediction using a training data set. Using acquired image information and the set of data, an imaging device is able to be calibrated. Since the process of calibration utilizing this method only requires one image to be acquired and a reduced set of image information to be sent to the computing device, the process is more efficient than previous implementations.
摘要翻译： 这里描述了一种有效地校准成像装置的系统和方法。 成像装置获取多于一种颜色的对象的图像。 然后将所获取的信息传送到计算设备。 然后，该信息用于生成表示在图像中未获取的信息的一组数据。 基于使用训练数据集的统计预测生成数据集。 使用获取的图像信息和数据集，能够对成像装置进行校准。 由于使用该方法的校准过程仅需要获取一个图像并且将减少的图像信息集合发送到计算设备，所以该处理比先前的实现更有效。
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公开(公告)号：US07557826B2
公开(公告)日：2009-07-07
申请号：US11398196
申请日：2006-04-04
CPC分类号： H04N17/002 , H04N9/045
摘要： A method and system are provided for approximating spectral sensitivities of a particular image sensor, the image sensor having a color filter array positioned over the image sensor. In one example of the method, the method involves measuring spectral sensitivities of a set of image sensors each having a color filter array positioned over the image sensor, calculating mean spectral sensitivities of the set of image sensors for each color within the color filter array, measuring outputs of a particular image sensor when capturing a picture of a plurality of color patches under a first illuminant and calculating spectral sensitivities of the particular image sensor using the mean spectral sensitivities and the output of the particular image sensor. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to determine outputs of the particular image sensor under a second illuminant. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to calibrate a camera including the image sensor.
摘要翻译： 提供了用于近似特定图像传感器的光谱灵敏度的方法和系统，该图像传感器具有位于图像传感器上方的滤色器阵列。 在该方法的一个示例中，该方法涉及测量一组图像传感器的光谱灵敏度，每个图像传感器具有位于图像传感器上方的滤色器阵列，计算滤色器阵列内每种颜色的图像传感器组的平均光谱灵敏度， 测量特定图像传感器的输出，当在第一光源下拍摄多个色块的图像时，使用平均光谱灵敏度和特定图像传感器的输出来计算特定图像传感器的光谱灵敏度。 在一些实施例中，该方法还包括利用所计算的光谱灵敏度来确定第二光源下的特定图像传感器的输出。 在一些实施例中，该方法还包括利用所计算的光谱灵敏度来校准包括图像传感器的照相机。
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6.发明授权System and method for effectively performing an image data transformation procedure 有权用于有效执行图像数据变换过程的系统和方法公开(公告)号：US07277575B2
公开(公告)日：2007-10-02
申请号：US10721628
申请日：2003-11-25
申请人： Farhan A. Baqai , Ted J. Cooper , Akira Matsui , Kenichi Nishio
发明人： Farhan A. Baqai , Ted J. Cooper , Akira Matsui , Kenichi Nishio
CPC分类号： H04N5/243 , H04N1/58 , H04N1/6086 , H04N5/217 , H04N9/045 , H04N9/67 , H04N17/002
摘要： A system and method for effectively performing an image data transformation procedure may include an electronic camera device that is implemented to capture primary image data corresponding to a photographic target. A transformation manager in the electronic camera device may be configured to convert the primary image data into secondary image data by utilizing selectable transformation parameters that are optimized by utilizing an optimization metric to thereby minimize noise characteristics in the secondary image data. The transformation parameters may be stored in parameter lookup tables in the electronic camera device for use by the transformation manager in performing the image data transformation procedure.
摘要翻译： 用于有效执行图像数据变换过程的系统和方法可以包括被实现为捕获与摄影目标对应的主要图像数据的电子照相机设备。 电子照相机装置中的变换管理器可以被配置为通过利用通过利用优化度量优化的可选择的变换参数将主图像数据转换成次级图像数据，从而使辅助图像数据中的噪声特性最小化。 变换参数可以存储在电子照相机设备中的参数查找表中，以供变换管理器在执行图像数据变换过程中使用。
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公开(公告)号：US20070229666A1
公开(公告)日：2007-10-04
申请号：US11398196
申请日：2006-04-04
申请人： Alexander Berestov , Ted Cooper , Kenichi Nishio , Farhan Baqai
发明人： Alexander Berestov , Ted Cooper , Kenichi Nishio , Farhan Baqai
IPC分类号： H04N17/00
CPC分类号： H04N17/002 , H04N9/045
摘要： A method and system are provided for approximating spectral sensitivities of a particular image sensor, the image sensor having a color filter array positioned over the image sensor. In one example of the method, the method involves measuring spectral sensitivities of a set of image sensors each having a color filter array positioned over the image sensor, calculating mean spectral sensitivities of the set of image sensors for each color within the color filter array, measuring outputs of a particular image sensor when capturing a picture of a plurality of color patches under a first illuminant and calculating spectral sensitivities of the particular image sensor using the mean spectral sensitivities and the output of the particular image sensor. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to determine outputs of the particular image sensor under a second illuminant. In some embodiments, the method further comprises utilizing the calculated spectral sensitivities to calibrate a camera including the image sensor.
摘要翻译： 提供了用于近似特定图像传感器的光谱灵敏度的方法和系统，该图像传感器具有位于图像传感器上方的滤色器阵列。 在该方法的一个示例中，该方法涉及测量一组图像传感器的光谱灵敏度，每个图像传感器具有位于图像传感器上方的滤色器阵列，计算滤色器阵列内每种颜色的图像传感器组的平均光谱灵敏度， 测量特定图像传感器的输出，当在第一光源下拍摄多个色块的图像时，使用平均光谱灵敏度和特定图像传感器的输出来计算特定图像传感器的光谱灵敏度。 在一些实施例中，该方法还包括利用所计算的光谱灵敏度来确定第二光源下的特定图像传感器的输出。 在一些实施例中，该方法还包括利用所计算的光谱灵敏度来校准包括图像传感器的照相机。
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8.发明授权Wavelet transform on incomplete image data and its applications in image processing 有权不完整图像数据的小波变换及其在图像处理中的应用公开(公告)号：US08731281B2
公开(公告)日：2014-05-20
申请号：US13065729
申请日：2011-03-29
申请人： Xiaogang Dong , Farhan Baqai , Kenichi Nishio
发明人： Xiaogang Dong , Farhan Baqai , Kenichi Nishio
IPC分类号： G06K9/00
CPC分类号： G06T3/4015 , G06T5/002 , G06T2207/20064 , H04N9/045
摘要： A system and method for effectively performing wavelet transforms on incomplete image data includes an image processor that performs a green-pixel transformation procedure on incomplete color pixel matrices. The image processor then rearranges red, blue and transformed green-pixel into four quadrants of contiguous pixels and applies some two dimensional (2D) wavelet thresholding schemes on each quadrant. After thresholding, an inverse procedure is applied to reconstruct the pixel values on the incomplete color pixel matrices. For further de-correlation of image data, the image processor may stack similar image patches in a three dimensional (3D) array and apply incomplete-data wavelet thresholding on the 3D array. The incomplete-data wavelet thresholding procedure may be put in an improved local similarity measurement framework to achieve better performance of image processing tasks. A CPU device typically controls the image processor to effectively perform the image processing procedure.
摘要翻译： 用于在不完整图像数据上有效地执行小波变换的系统和方法包括对不完整的彩色像素矩阵执行绿色像素变换过程的图像处理器。 然后，图像处理器将红色，蓝色和变换的绿色像素重新排列成四个相邻像素的象限，并在每个象限上应用一些二维（2D）小波阈值方案。 阈值处理后，应用逆过程来重构不完全色彩像素矩阵上的像素值。 为了图像数据的进一步去相关，图像处理器可以在三维（3D）阵列中堆叠相似的图像块，并在3D阵列上应用不完全数据小波阈值。 不完全数据小波阈值处理可以放在改进的局部相似度测量框架中，以实现更好的图像处理任务性能。 CPU设备通常控制图像处理器以有效地执行图像处理过程。
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公开(公告)号：US08730357B2
公开(公告)日：2014-05-20
申请号：US13096438
申请日：2011-04-28
申请人： Kenichi Nishio , Hyongmyong Kang , Hiroyuki Kinoshita , Tsukasa Hashino , Takuya Kato , Gentaro Irisawa , Atsuo Minato
发明人： Kenichi Nishio , Hyongmyong Kang , Hiroyuki Kinoshita , Tsukasa Hashino , Takuya Kato , Gentaro Irisawa , Atsuo Minato
IPC分类号： H04N5/217
摘要： An image processing method includes the steps of calculating, with respect to a processing-target pixel in an input image signal, a concentric aberration correction amount for concentric aberration that is a component of magnification chromatic aberration, the concentric aberration causing a color shift to occur in a concentric manner from the center of an image, calculating, with respect to the processing-target pixel, a uniform aberration correction amount for uniform aberration that is a component of magnification chromatic aberration, the uniform aberration causing a color shift direction and a color shift amount to uniformly occur on a whole image, and correcting a pixel value of the processing-target pixel on the basis of the calculated concentric aberration correction amount and the calculated uniform aberration correction amount.
摘要翻译： 一种图像处理方法包括以下步骤：相对于输入图像信号中的处理目标像素，计算作为倍率色像差的分量的同心像差的同心像差校正量，产生发生色偏的同心像差 以图像中心的同心方式，相对于处理对象像素计算作为倍率色像差的分量的均匀像差的均匀像差校正量，引起色移方向和颜色的均匀像差 基于所计算的同心像差校正量和计算出的均匀像差校正量来校正处理对象像素的像素值。
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公开(公告)号：US08446477B2
公开(公告)日：2013-05-21
申请号：US13190900
申请日：2011-07-26
申请人： Gentaro Irisawa , Atsuo Kikuchi , Takuya Kato , Atsuo Minato , Kenichi Nishio , Hiroyuki Kinoshita
发明人： Gentaro Irisawa , Atsuo Kikuchi , Takuya Kato , Atsuo Minato , Kenichi Nishio , Hiroyuki Kinoshita
CPC分类号： H04N5/23248 , H04N5/23258 , H04N5/23287 , H04N5/3572 , H04N9/045
摘要： An imaging apparatus includes: a shift lens driven to be shifted; a uniform aberration correction data storing unit storing uniform aberration correction data for correcting uniform aberration; a shift amount calculating unit calculating an amount of aberration correction shift of the shift lens for correcting uniform aberration using the uniform aberration correction data; a shift lens driving unit driving the shift lens to be shifted according to an amount of driving shift based on the amount of aberration correction shift; a concentric aberration correction amount calculating unit calculating an amount of concentric aberration correction for correcting concentric aberration with respect to a process target pixel of an input image signal; and a pixel value correcting unit correcting a pixel value of the process target pixel on the basis of the calculated amount of concentric aberration correction.
摘要翻译： 一种成像装置，包括：驱动移位的移位透镜; 均匀像差校正数据存储单元，其存储用于校正均匀像差的均匀像差校正数据; 偏移量计算单元，使用所述均匀像差校正数据来计算用于校正均匀像差的移位透镜的像差校正偏移量; 移动透镜驱动单元，根据基于像差校正偏移量的驱动移位量，驱动移位透镜进行移位; 同心像差校正量计算单元，计算相对于输入图像信号的处理目标像素校正同心像差的同心像差校正量; 以及像素值校正单元，其基于计算出的同心像差校正量校正处理目标像素的像素值。
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