公开(公告)号：US20110181770A1

公开(公告)日：2011-07-28

申请号：US12857343

申请日：2010-08-16

申请人： Guy Rapaport ,  Meir Tzur ,  Artemy Baxansky

发明人： Guy Rapaport ,  Meir Tzur ,  Artemy Baxansky

IPC分类号： H04N5/232

CPC分类号： H04N5/23212 ,  H04N5/2356

摘要： A device and methods are provided for calculating depth estimation for a digital imaging device are disclosed and claimed. In one embodiment, a method includes detecting a first image associated with a first focus parameter, detecting a second image associated with a second focus parameter, calculating a statistical representation of a region of interest in the first and second images, and determining a ratio for the region of interest based on the statistical representation. The method may further include determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest, and calculating a focus depth for capture of image data based on the determined one or more focus characteristics associated with the memory table.

摘要翻译： 提供了一种用于计算数字成像装置的深度估计的装置和方法。 在一个实施例中，一种方法包括检测与第一焦点参数相关联的第一图像，检测与第二焦点参数相关联的第二图像，计算第一和第二图像中感兴趣区域的统计表示，以及确定 基于统计表示的兴趣区域。 该方法还可以包括：基于所确定的感兴趣区域的比例，使用存储表确定一个或多个焦点特征，以及基于所确定的与存储表相关联的一个或多个聚焦特性来计算用于捕获图像数据的聚焦深度 。

公开(公告)号：US08542313B2

公开(公告)日：2013-09-24

申请号：US12857343

申请日：2010-08-16

申请人： Guy Rapaport ,  Meir Tzur ,  Artemy Baxansky

发明人： Guy Rapaport ,  Meir Tzur ,  Artemy Baxansky

IPC分类号： H04N5/232 ,  H04N5/228 ,  H04N5/225

CPC分类号： H04N5/23212 ,  H04N5/2356

摘要： A device and methods are provided for calculating depth estimation for a digital imaging device are disclosed and claimed. In one embodiment, a method includes detecting a first image associated with a first focus parameter, detecting a second image associated with a second focus parameter, calculating a statistical representation of a region of interest in the first and second images, and determining a ratio for the region of interest based on the statistical representation. The method may further include determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest, and calculating a focus depth for capture of image data based on the determined one or more focus characteristics associated with the memory table.

摘要翻译： 提供了一种用于计算数字成像装置的深度估计的装置和方法。 在一个实施例中，一种方法包括检测与第一焦点参数相关联的第一图像，检测与第二焦点参数相关联的第二图像，计算第一和第二图像中感兴趣区域的统计表示，以及确定 基于统计表示的兴趣区域。 该方法还可以包括：基于所确定的感兴趣区域的比例，使用存储表确定一个或多个焦点特征，以及基于所确定的与存储表相关联的一个或多个聚焦特性来计算用于捕获图像数据的聚焦深度 。

公开(公告)号：US08098948B1

公开(公告)日：2012-01-17

申请号：US12130733

申请日：2008-05-30

申请人： Meir Tzur ,  Artemy Baxansky ,  Victor Pinto

发明人： Meir Tzur ,  Artemy Baxansky ,  Victor Pinto

IPC分类号： G06K9/40

CPC分类号： H03F3/217

摘要： A method of processing an image includes obtaining the image; determining a point spread function for the image; applying a filter, based on the point spread function, to at least a portion of the image to form a filtered image; and generating a processed image by blending the filtered image with the image or another filtered image, wherein a first portion of the processed image is generated using a different amount of blending of the filtered image with the image or other filtered image than is used for a second portion of the processed image.

摘要翻译： 一种处理图像的方法包括获取图像; 确定图像的点扩散函数; 将基于点扩散函数的滤波器应用于图像的至少一部分以形成滤波图像; 以及通过将经滤波的图像与图像或另一滤波图像混合来生成经处理的图像，其中，使用滤波图像与图像或其他滤波图像的混合的不同量来生成处理图像的第一部分，而不是用于 处理图像的第二部分。

公开(公告)号：US08482620B2

公开(公告)日：2013-07-09

申请号：US12397727

申请日：2009-03-04

申请人： Meir Tzur ,  Artemy Baxansky

发明人： Meir Tzur ,  Artemy Baxansky

IPC分类号： H04N5/228 ,  H04N5/235

CPC分类号： H04N5/2353 ,  H04N5/145 ,  H04N5/235

摘要： A system and method for capturing images is provided. In the system and method, preview images are acquired and global local and local motion are estimated based on at least a portion of the preview images. If the local motion is less than or equal to the global motion, a final image is captured based at least on an exposure time based on the global motion. If the local motion is greater than the global motion, a first image is captured based on at least a first exposure time and at least a second image is captured based on at least one second exposure time less than the first exposure time. After capturing the first and second images, global motion regions are separated from local motion regions in the first and second images, and the final image is reconstructed at least based on the local motion regions.

摘要翻译： 提供了一种用于捕获图像的系统和方法。 在系统和方法中，获取预览图像，并且基于预览图像的至少一部分来估计全局局部和局部运动。 如果局部运动小于或等于全局运动，则至少基于全局运动的曝光时间捕获最终图像。 如果局部运动大于全局运动，则基于至少第一曝光时间捕获第一图像，并且至少基于至少一次第二曝光时间小于第一曝光时间捕获第二图像。 在捕获第一和第二图像之后，全局运动区域与第一和第二图像中的局部运动区域分离，并且至少基于局部运动区域重建最终图像。

公开(公告)号：US08698905B2

公开(公告)日：2014-04-15

申请号：US12721263

申请日：2010-03-10

申请人： Artemy Baxansky ,  Meir Tzur

发明人： Artemy Baxansky ,  Meir Tzur

IPC分类号： H04N5/228

CPC分类号： H04N5/23248 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20192 ,  G06T2207/20201 ,  H04N5/23229 ,  H04N5/23254 ,  H04N5/23267

摘要： Methods for estimating the point spread function (PSF) of a motion-blurred image are disclosed and claimed. In certain embodiments, the estimated PSF may be used to compensate for the blur caused by hand-shake without the use of an accelerometer or gyro. Edge spread functions may be extracted along different directions from straight edges in a blurred image and combined to find the PSF that best matches. In other embodiments, the blur response to edges of other forms may similarly be extracted, such as corners or circles, and combined to find the best matching PSF. The PSF may then be represented in a parametric form, where the parameters used are related to low-order polynomial coefficients of the angular velocity vx(t) and vy(t) as a function of time.

摘要翻译： 公开并要求保护用于估计运动模糊图像的点扩散函数（PSF）的方法。 在某些实施例中，估计的PSF可用于补偿由手抖而造成的模糊，而不使用加速度计或陀螺仪。 边缘扩展函数可以沿着模糊图像中的直边沿不同方向提取，并且被组合以找到最佳匹配的PSF。 在其他实施例中，可以类似地提取对其他形式的边缘的模糊响应，例如角或圆，并且被组合以找到最佳匹配的PSF。 PSF可以以参数形式表示，其中使用的参数与作为时间的函数的角速度vx（t）和vy（t）的低阶多项式系数相关。

公开(公告)号：US08194152B2

公开(公告)日：2012-06-05

申请号：US12511726

申请日：2009-07-29

申请人： Victor Pinto ,  Artemy Baxansky ,  Meir Tzur

发明人： Victor Pinto ,  Artemy Baxansky ,  Meir Tzur

IPC分类号： H04N9/73 ,  H04N5/217 ,  G06K9/40

CPC分类号： H04N9/735 ,  H04N5/235 ,  H04N5/2357

摘要： Methods for estimating illumination parameters under flickering lighting conditions are disclosed. Illumination parameters, such as phase and contrast, of a intensity-varying light source may be estimated by capturing a sequence of video images, either prior to or after a desired still image to be processed. The relative average light intensities of the adjacently-captured images are calculated and used to estimate the illumination parameters applicable to the desired still image. The estimated illumination parameters may be used to calculate the point spread function of a still image for image de-blurring processing. The estimated illumination parameters may also be used to synchronize the exposure timing of a still image to the time when there is the most light, as well as for use in motion estimation during view/video modes.

摘要翻译： 公开了在闪烁照明条件下估计照明参数的方法。 可以通过在要处理的所需静止图像之前或之后捕获视频图像序列来估计强度变化光源的照明参数，例如相位和对比度。 计算相邻拍摄图像的相对平均光强度并用于估计适用于所需静止图像的照明参数。 可以使用估计的照明参数来计算用于图像去模糊处理的静止图像的点扩散函数。 估计的照明参数也可以用于使静止图像的曝光定时与最亮的时间同步，以及用于在视图/视频模式期间的运动估计。

公开(公告)号：US08593541B2

公开(公告)日：2013-11-26

申请号：US13410256

申请日：2012-03-01

申请人： Victor Pinto ,  Artemy Baxansky ,  Meir Tzur

发明人： Victor Pinto ,  Artemy Baxansky ,  Meir Tzur

IPC分类号： H04N9/73 ,  H04N5/217 ,  G06K9/40

CPC分类号： H04N9/735 ,  H04N5/235 ,  H04N5/2357

摘要： Methods for estimating illumination parameters under flickering lighting conditions are disclosed. Illumination parameters, such as phase and contrast, of a intensity-varying light source may be estimated by capturing a sequence of video images, either prior to or after a desired still image to be processed. The relative average light intensities of the adjacently-captured images are calculated and used to estimate the illumination parameters applicable to the desired still image. The estimated illumination parameters may be used to calculate the point spread function of a still image for image de-blurring processing. The estimated illumination parameters may also be used to synchronize the exposure timing of a still image to the time when there is the most light, as well as for use in motion estimation during view/video modes.

摘要翻译： 公开了在闪烁照明条件下估计照明参数的方法。 可以通过在要处理的所需静止图像之前或之后捕获视频图像序列来估计强度变化光源的照明参数，例如相位和对比度。 计算相邻拍摄图像的相对平均光强度并用于估计适用于所需静止图像的照明参数。 可以使用估计的照明参数来计算用于图像去模糊处理的静止图像的点扩散函数。 估计的照明参数也可以用于使静止图像的曝光定时与最亮的时间同步，以及用于在视图/视频模式期间的运动估计。

公开(公告)号：US08090212B1

公开(公告)日：2012-01-03

申请号：US12130993

申请日：2008-05-30

申请人： Artemy Baxansky ,  Meir Tzur

发明人： Artemy Baxansky ,  Meir Tzur

IPC分类号： G06K9/40

CPC分类号： H03F3/217

摘要： A method of processing an image includes determining at least one point spread function for the image. For each point spread function, the image, or at least a portion of the image, is filtered using at least one filter based on that point spread function to generate a corresponding filtered image for each filter. If only a single point spread function is determined then a plurality of different filters are used to individually filter the image, or at least a portion of the image, to generate a plurality of different filtered images. At least one quality metric is determined for each of the filtered images. A final filtered image is selected from the filtered images based on the at least one quality metric for each of the filtered images.

摘要翻译： 一种处理图像的方法包括确定图像的至少一个点扩散函数。 对于每个点扩散函数，使用基于该点扩展函数的至少一个滤波器对图像或图像的至少一部分进行滤波，以生成每个滤波器的相应滤波图像。 如果仅确定单个点扩散函数，则使用多个不同的滤波器来单独地过滤图像或图像的至少一部分，以生成多个不同的滤波图像。 为每个滤波图像确定至少一个质量度量。 基于每个滤波图像的至少一个质量度量，从经滤波的图像中选择最终滤波图像。

公开(公告)号：US20090231449A1

公开(公告)日：2009-09-17

申请号：US12397727

申请日：2009-03-04

申请人： Meir Tzur ,  Artemy Baxansky

发明人： Meir Tzur ,  Artemy Baxansky

IPC分类号： H04N5/228

CPC分类号： H04N5/2353 ,  H04N5/145 ,  H04N5/235

摘要： A system and method for capturing images is provided. In the system and method, preview images are acquired and global local and local motion are estimated based on at least a portion of the preview images. If the local motion is less than or equal to the global motion, a final image is captured based at least on an exposure time based on the global motion. If the local motion is greater than the global motion, a first image is captured based on at least a first exposure time and at least a second image is captured based on at least one second exposure time less than the first exposure time. After capturing the first and second images, global motion regions are separated from local motion regions in the first and second images, and the final image is reconstructed at least based on the local motion regions.

摘要翻译： 提供了一种用于捕获图像的系统和方法。 在系统和方法中，获取预览图像，并且基于预览图像的至少一部分来估计全局局部和局部运动。 如果局部运动小于或等于全局运动，则至少基于全局运动的曝光时间捕获最终图像。 如果局部运动大于全局运动，则基于至少第一曝光时间捕获第一图像，并且至少基于至少一次第二曝光时间小于第一曝光时间捕获第二图像。 在捕获第一和第二图像之后，全局运动区域与第一和第二图像中的局部运动区域分离，并且至少基于局部运动区域重建最终图像。

公开(公告)号：US08644697B1

公开(公告)日：2014-02-04

申请号：US13183363

申请日：2011-07-14

申请人： Meir Tzur ,  Guy Rapaport

发明人： Meir Tzur ,  Guy Rapaport

IPC分类号： G03B3/00 ,  G03B13/00

CPC分类号： H04N5/23212 ,  G06T7/529

摘要： A system, method, and computer program product are provided for automatically progressively determining focus depth estimates for an imaging device from defocused images. After a depth-from-defocus (DFD) system generates sometimes-noisy estimates for focus depth and optionally a confidence level that the focus depth estimate is correct, embodiments of the present invention process a sequence of such input DFD measures to iteratively decrease the likelihood of focus depth ambiguity and to increase an overall focus depth estimate confidence level. Automatic focus systems for imaging devices may use the outputs of the embodiments to operate more quickly and accurately, either directly or in combination with other focus depth estimation methods, such as calculated sharpness measures. A depth map of a 3D scene may be estimated for creating a pair of images based on a single image.

摘要翻译： 提供了一种系统，方法和计算机程序产品，用于从散焦图像中自动逐步确定成像设备的焦点深度估计。 在离焦深度（DFD）系统产生聚焦深度的有时噪声估计值和可选的焦点深度估计值的置信水平之后，本发明的实施例处理这种输入DFD测量的序列以迭代地降低可能性 的焦点深度歧义，并增加整体焦点深度估计置信水平。 用于成像装置的自动对焦系统可以使用实施例的输出来直接地或者与其它聚焦深度估计方法（诸如计算的锐度度量）组合更快速和准确地进行操作。 可以基于单个图像来估计3D场景的深度图以创建一对图像。