公开(公告)号：US08018504B2

公开(公告)日：2011-09-13

申请号：US11615223

申请日：2006-12-22

Applicant: Sean C. Kelly

Inventor： Sean C. Kelly

IPC: H04N5/217 ,  H04N17/00 ,  H04N5/225 ,  H04N5/228 ,  G06K9/40

CPC classification number: H04N5/3572

Abstract: Noise is reduced in a digital image generated by an imaging device utilizing information which specifies noise level as a function of position for the digital image. A noise reducing algorithm is applied to the digital image while one or more parameters of the noise reducing algorithm are varied. The one or more parameters are varied as a function of field position in the digital image based on the obtained noise level as a function of field position. In this way, noise is substantially reduced and is spatially equalized in the digital image.

Abstract translation: 使用指定噪声水平作为数字图像的位置的函数的信息由成像装置产生的数字图像中的噪声减小。 噪声降低算法被应用于数字图像，同时降低噪声算法的一个或多个参数是变化的。 基于获得的噪声电平作为场位置的函数，一个或多个参数作为数字图像中的场位置的函数而变化。 以这种方式，噪声被显着地减少并且在数字图像中在空间上相等。

公开(公告)号：US07443431B2

公开(公告)日：2008-10-28

申请号：US10423279

申请日：2003-04-25

Applicant: Sean C. Kelly ,  Robert M. Guidash ,  Bruce H. Pillman

Inventor： Sean C. Kelly ,  Robert M. Guidash ,  Bruce H. Pillman

IPC: H04N9/64

CPC classification number: H04N5/361 ,  H04N5/3651

Abstract: A method of minimizing noise in an image produced by an electronic imager comprising: determining a correction system for a range of imager integration times and a range of imager temperatures for an electronic imager which has taken a series of dark capture images and a series of flat field capture images in a calibration mode; and applying the correction system to an image produced by the electronic imager in an image capture mode.

Abstract translation: 一种使由电子成像器生成的图像中的噪声最小化的方法，包括：确定用于已经拍摄了一系列暗捕获图像和一系列平面的电子成像器的成像器积分时间范围和成像器温度范围的校正系统 以校准模式捕获图像; 以及将所述校正系统应用于由所述电子成像器在图像拍摄模式中产生的图像。

公开(公告)号：US06628329B1

公开(公告)日：2003-09-30

申请号：US09139919

申请日：1998-08-26

Applicant: Sean C. Kelly ,  Donald R. Williams ,  David W. Jasinski

Inventor： Sean C. Kelly ,  Donald R. Williams ,  David W. Jasinski

IPC: H04N5208

CPC classification number: H04N5/208 ,  H04N5/765 ,  H04N5/907

Abstract: Images are sharpened and corrected for position dependent blur by providing a sharpening function which is adapted to operate upon signals corresponding to a selected number of pixels, providing a plurality of values which are a function of the position dependent blur; and applying the plurality of values to the sharpening function to modify the sharpening function so that after the modified sharpening function is applied to the image, a sharpened image will be provided which has been corrected for the position dependent blur.

Abstract translation: 通过提供适合于对应于选定数量的像素的信号进行操作的锐化功能，提供多个作为位置相关模糊的函数的值，对图像进行锐化和校正，以使位置相关模糊; 并且将多个值应用于锐化功能以修改锐化功能，使得在将修改的锐化功能应用于图像之后，将提供已经针对位置相关模糊进行了校正的锐化图像。

公开(公告)号：US20080159644A1

公开(公告)日：2008-07-03

申请号：US11616944

申请日：2006-12-28

Applicant: Sean C. Kelly ,  Scott C. Cahall

Inventor： Sean C. Kelly ,  Scott C. Cahall

IPC: G06K9/40

CPC classification number: G06T5/003 ,  H04N5/217 ,  H04N2101/00 ,  H04N2201/3225 ,  H04N2201/3277 ,  H04N2201/3278

Abstract: Blur is reduced in an image generated by an imaging device by determining values of one or more atmospheric variables for the image, the one or more atmospheric variables characterizing conditions under which the image is generated. With these values, a sharpening filter is determined for the image. The sharpening filter is derived from a modulation transfer function of the imaging device at conditions characterized by the values of the one or more atmospheric variables determined for the image. The sharpening filter is subsequently applied to the image.

Abstract translation: 通过确定图像的一个或多个大气变量的值，表征产生图像的条件的一个或多个大气变量，减少由成像装置产生的图像中的模糊。 使用这些值，为图像确定锐化滤波器。 锐化滤波器是由成像装置的调制传递函数导出的，其特征在于为图像确定的一个或多个大气变量的值。 随后将锐化滤波器应用于图像。

公开(公告)号：US20090096915A1

公开(公告)日：2009-04-16

申请号：US11872897

申请日：2007-10-16

Applicant: Sean C. Kelly ,  John D. Griffith ,  Russell J. Palum

Inventor： Sean C. Kelly ,  John D. Griffith ,  Russell J. Palum

IPC: H04N5/238

CPC classification number: H04N5/2254 ,  H04N5/23245

Abstract: A filter system for an imaging apparatus including a high resolution mode of operation and a low resolution mode of operation is provided. The filter system includes a low pass filter associated with an optical path of the imaging apparatus. The low pass filter is moveable into the optical path of the imaging apparatus when the imaging apparatus is in the low resolution mode of operation and is moveable out of the optical path of the imaging apparatus when the imaging apparatus is in the high resolution mode of operation.

Abstract translation: 提供一种用于包括高分辨率操作模式和低分辨率操作模式的成像设备的滤波器系统。 滤波器系统包括与成像设备的光路相关联的低通滤波器。 当成像设备处于低分辨率操作模式时，低通滤波器可移动到成​​像设备的光路中，并且当成像设备处于高分辨率操作模式时可移动到成​​像设备的光路中 。

公开(公告)号：US20080152248A1

公开(公告)日：2008-06-26

申请号：US11615223

申请日：2006-12-22

Applicant: Sean C. Kelly

Inventor： Sean C. Kelly

IPC: G06K9/40 ,  H04N5/217

CPC classification number: H04N5/3572

Abstract: Noise is reduced in a digital image generated by an imaging device utilizing information which specifies noise level as a function of position for the digital image. A noise reducing algorithm is applied to the digital image while one or more parameters of the noise reducing algorithm are varied. The one or more parameters are varied as a function of field position in the digital image based on the obtained noise level as a function of field position. In this way, noise is substantially reduced and is spatially equalized in the digital image.

Abstract translation: 使用指定噪声水平作为数字图像的位置的函数的信息由成像装置产生的数字图像中的噪声减小。 噪声降低算法被应用于数字图像，同时降低噪声算法的一个或多个参数是变化的。 基于获得的噪声电平作为场位置的函数，一个或多个参数作为数字图像中的场位置的函数而变化。 以这种方式，噪声被显着地减少并且在数字图像中在空间上相等。

公开(公告)号：US07683950B2

公开(公告)日：2010-03-23

申请号：US11114841

申请日：2005-04-26

Applicant: Sean C. Kelly ,  Peter D. Burns

Inventor： Sean C. Kelly ,  Peter D. Burns

IPC: H04N5/208 ,  G06K9/40

CPC classification number: G06T5/003 ,  G06T5/10 ,  G06T5/20 ,  G06T2207/10024 ,  G06T2207/20056 ,  G06T2207/20192 ,  H04N1/58 ,  H04N9/045

Abstract: A method, and digital capture apparatus for use therewith, is described for correcting a channel dependent color aberration in a digital image, where the digital image is composed of a plurality of color channels. The method includes capturing an image comprising the color channels, where one of the color channels is a blurred color channel due to a channel dependent color aberration affecting that channel. Then, one of the other color channels, other than the blurred color channel, is used as an indication of an aim sharpness, and the sharpness of the blurred color channel is adjusted, at least partially, toward the aim sharpness.

Abstract translation: 描述了一种用于其的方法和数字捕获装置，用于校正数字图像中的通道相关色差，其中数字图像由多个颜色通道组成。 该方法包括捕获包括颜色通道的图像，其中由于影响该通道的依赖于通道的色差，颜色通道之一是模糊颜色通道。 然后，使用除模糊颜色通道之外的其它颜色通道之一作为目标清晰度的指示，并且至少部分地朝向目标清晰度调整模糊颜色通道的清晰度。

公开(公告)号：US07092017B2

公开(公告)日：2006-08-15

申请号：US10242865

申请日：2002-09-13

Applicant: Sean C. Kelly ,  Robert M. Guidash ,  Bruce H. Pillman

Inventor： Sean C. Kelly ,  Robert M. Guidash ,  Bruce H. Pillman

IPC: H04N5/217 ,  G06K9/40

CPC classification number: H04N5/361

Abstract: CMOS imagers can possess higher levels of imager noise than their predecessors, CCDs. This noise can be of the form of temporal variation and fixed pattern. The fixed pattern component of this noise can be removed, which is known already in the art. The invention in this disclosure is that proper correction can be developed for all imager conditions (imager integration time and imager temperature) using a single FPN (fixed pattern noise) dark map, a single FPN PRNU (pixel response nonuniformity) map, imager integration time and imager temperature. Without this invention, a dark frame capture and a flat field capture (integrating sphere), are required before every image capture, a practical impossibility in typical picture taking. Further, the estimates of both FPN maps (dark and PRNU) in this invention are improved estimates relative to such captured directly preceding image capture since such have be formed with multiple frame averaging at calibration time, thus removing any temporal noise from these map estimates. These dark FPN and PRNU FPN maps are modified by a scaling and biasing functional with the measured values of integration time and of imager temperature. A second approach is to make the biasing and scaling functions dependant only on mean dark response taken from the imager's dark pixels, at time of capture.

Abstract translation: CMOS成像器可以具有比其前身CCD更高水平的成像器噪声。 这种噪声可以是时间变化和固定模式的形式。 该噪声的固定图案分量可以被去除，这在本领域已知。 本公开的本发明是使用单个FPN（固定图案噪声）暗图，单个FPN PRNU（像素响应不均匀）图，成像器积分时间，对于所有成像器条件（成像器积分时间和成像器温度）可以进行适当的校正 和成像器温度。 没有本发明，在每次图像捕获之前需要暗帧捕获和平坦场捕获（积分球），在典型的拍摄中实际上是不可能的。 此外，本发明中的FPN映射（暗和PRNU）的估计是相对于所捕获的直接在前的图像捕获的改进的估计，因为在校准时间已经形成了多个帧平均，从而从这些映射估计中消除了任何时间噪声。 这些暗FPN和PRNU FPN图通过缩放和偏置功能被修改，具有积分时间和成像器温度的测量值。 第二种方法是使偏置和缩放功能仅取决于在拍摄时从成像器的暗像素获取的平均暗响应。