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1. 发明授权

US06636298B1 Method and apparatus for focusing an optical inspection system 有权
标题翻译：聚焦光学检测系统的方法和设备
公开(公告)号：US06636298B1
公开(公告)日：2003-10-21
申请号：US10024404
申请日：2001-12-18
申请人： Ivan Bachelder , Yusuf Akgul , Prabhav Morje , Juha Koljonen
发明人： Ivan Bachelder , Yusuf Akgul , Prabhav Morje , Juha Koljonen
IPC分类号： G01N2100
CPC分类号： G01N21/8806
摘要： A method is provided for obtaining a focused image of an object in an application of machine vision in an optical inspection system. A coarse focus setting is first obtained by maximizing a coarse feature sharpness measurement performed on an image of the object of inspection. Then, a fine focus setting is obtained by maximizing a fine feature sharpness measurement performed on a portion of an image of the object of inspection. Finally, the fine focused image can be further analyzed, inspected, or otherwise processed.
摘要翻译：提供一种用于在光学检查系统中获得机器视觉应用中的对象的聚焦图像的方法。首先通过最大化对检查对象的图像执行的粗糙特征锐度测量来获得粗略聚焦设置。然后，通过最大化对检查对象的图像的一部分执行的精细特征锐度测量来获得精细聚焦设置。最后，精细聚焦的图像可以进一步分析，检查或以其他方式处理。

2. 发明授权

US07162073B1 Methods and apparatuses for detecting classifying and measuring spot defects in an image of an object 有权
标题翻译：用于检测物体的图像中的斑点缺陷的分类和测量的方法和装置
公开(公告)号：US07162073B1
公开(公告)日：2007-01-09
申请号：US10001177
申请日：2001-11-30
申请人： Yusuf Akgul , Ivan Bachelder , Adam Wagman , Jason Davis , Juha Koljonen , Prabhav Morje
发明人： Yusuf Akgul , Ivan Bachelder , Adam Wagman , Jason Davis , Juha Koljonen , Prabhav Morje
IPC分类号： G06K9/00 , G01N21/00
CPC分类号： G01N21/8851 , G06K9/38 , G06K2209/19 , G06T7/0004 , G06T7/174 , G06T7/194 , G06T2207/10056 , G06T2207/20081 , G06T2207/30108
摘要： A method is provided for detecting spot defects on an object when an allowable variation (called the “background”) in the appearance of the object can be modeled. Methods are also provided for measuring and classifying detected spot defects. An alignment model is used to align the image of the object, a background model is then used to estimate the (possibly different) background in each region, and each background is substantially removed from the image so as to form a foreground image on which blob analysis can be applied to detect spot defects, the blob analysis using a threshold image that accommodates different noise statistics for each region. The method facilitates robust spot defect inspection of fiber optic end faces, or of any object with different object regions. The method also allows use of blob analysis over a larger range of conditions, including conditions that make simple blob analysis infeasible.
摘要翻译：提供了一种用于在物体的外观中允许的变化（称为“背景”）来建模时，用于检测物体上的斑点缺陷的方法。还提供了用于测量和分类检测到的斑点缺陷的方法。使用对准模型对准对象的图像，然后使用背景模型来估计每个区域中的（可能不同的）背景，并且基本上从图像中删除每个背景，以便形成在其上的前景图像可以应用分析来检测斑点缺陷，使用适应每个区域的不同噪声统计的阈值图像进行斑点分析。该方法有助于光纤端面或具有不同物体区域的任何物体的鲁棒斑点缺陷检测。该方法还允许在更大范围的条件下使用斑点分析，包括使简单斑点分析不可行的条件。

3. 发明授权

US06983065B1 Method for extracting features from an image using oriented filters 失效
标题翻译：使用定向滤波器从图像中提取特征的方法
公开(公告)号：US06983065B1
公开(公告)日：2006-01-03
申请号：US10034066
申请日：2001-12-28
申请人： Yusuf Akgul , Ivan Bachelder , Prabhav Morje , Juha Koljonen , Jason Davis
发明人： Yusuf Akgul , Ivan Bachelder , Prabhav Morje , Juha Koljonen , Jason Davis
IPC分类号： G06K9/00
CPC分类号： G06K9/4619
摘要： A method of analyzing machine vision images to identify low contrast features such as scratches or cracks on the polished ends of optical fibers. A bank of oriented filters having incremental angles of orientation are tuned to respond to the frequency characteristics of oriented scratches or cracks having an approximate width. The filters are applied to an image to generate a filter response image for each filter orientation. The set of filter response images are combined to form a single data set indicating a magnitude and angle for each pixel in the original image. Elements of the combined data set having corresponding angles and magnitudes are grouped to form contour components that can be optionally input to higher order processes.
摘要翻译：分析机器视觉图像以识别光纤的抛光端上的低对比度特征（例如划痕或裂纹）的方法。调整具有增加的取向角的定向过滤器组以响应具有近似宽度的定向划痕或裂纹的频率特性。滤波器被应用于图像以针对每个滤波器方向生成滤波器响应图像。滤波器响应图像的组合以形成指示原始图像中的每个像素的大小和角度的单个数据集。具有对应角度和幅度的组合数据集的元素被分组以形成可以可选地输入到高阶处理的轮廓分量。

4. 发明授权

US07606348B2 Tomographic imaging systems and methods 有权
标题翻译：断层成像系统和方法
公开(公告)号：US07606348B2
公开(公告)日：2009-10-20
申请号：US11704893
申请日：2007-02-09
申请人： Andrew D. Foland , Richard Franklin Eilbert , Boris Oreper , Nikolay Rolshud , Prabhav Morje
发明人： Andrew D. Foland , Richard Franklin Eilbert , Boris Oreper , Nikolay Rolshud , Prabhav Morje
IPC分类号： G01N23/04 , G01N23/083
CPC分类号： G01N23/046 , G01N2223/419
摘要： A method for operating an inspection system is disclosed in which an item under inspection may be moved between radiation sources and detectors illuminated by the sources. The radiation sources may be positioned such that radiation from at least some of the sources impinge on the radiation detectors, forming acute angles with respect to a plane having a normal direction coinciding with the first direction that are substantially in excess of three degrees. Data accumulated by the radiation detectors may be processed to form a three-dimensional tomographic data image of at least a portion of the item under inspection. The processing may be performed using an algebraic reconstruction technique using an inverse system matrix. The inverse matrix can be derived without first computing a transpose of the system matrix.
摘要翻译：公开了一种用于操作检查系统的方法，其中被检查的物品可以在辐射源和由源照射的检测器之间移动。辐射源可以被定位成使得来自至少一些源的辐射照射在辐射检测器上，相对于具有与第一方向一致的法线方向的平面形成锐角，该平面基本上超过三度。可以处理由辐射检测器累积的数据，以形成被检查物品的至少一部分的三维断层数据图像。可以使用使用逆系统矩阵的代数重建技术来执行处理。可以在不首先计算系统矩阵的转置的情况下导出逆矩阵。

5. 发明申请

US20080025461A1 Tomographic imaging systems and methods 有权
标题翻译：断层成像系统和方法
公开(公告)号：US20080025461A1
公开(公告)日：2008-01-31
申请号：US11704893
申请日：2007-02-09
申请人： Andrew Foland , Richard Eilbert , Boris Oreper , Nikolay Rolshud , Prabhav Morje
发明人： Andrew Foland , Richard Eilbert , Boris Oreper , Nikolay Rolshud , Prabhav Morje
IPC分类号： G01N23/04 , G06F19/00
CPC分类号： G01N23/046 , G01N2223/419
摘要： A method for operating an inspection system is disclosed in which an item under inspection may be moved in a first direction relative to and at least partially between at least one radiation source and at least some radiation detectors illuminated by the at least one radiation source. The radiation source and detectors may be operated such that ray paths extending linearly between the at least one radiation source and at least some of the radiation detectors form acute angles with respect to a plane having a normal direction coinciding with the first direction that are substantially in excess of three degrees. Data accumulated by the radiation detectors may be processed to form a three-dimensional tomographic data image of at least a portion of the item under inspection. In some embodiments, transmission data based upon outputs of a plurality of radiation detectors may be processed to form a tomographic image, in which, for all possible orientations of a three dimensional plane, the orientation vectors of at least some of the rays of radiation for which transmission data was accumulated and used to form the tomographic image form an angle of less than eighty-five degrees or greater than ninety five degrees with respect to the plane.
摘要翻译：公开了一种用于操作检查系统的方法，其中待检查的物品可以相对于并且至少部分地在至少一个辐射源与由至少一个辐射源照射的至少一些辐射探测器之间的第一方向上移动。可以操作辐射源和检测器，使得在至少一个辐射源与至少一些辐射探测器之间线性延伸的射线路径相对于具有与第一方向重合的平面的平面形成锐角，该平面基本上在超过三度。可以处理由辐射检测器累积的数据，以形成被检查物品的至少一部分的三维断层数据图像。在一些实施例中，可以处理基于多个辐射检测器的输出的传输数据以形成断层图像，其中对于三维平面的所有可能的取向，至少一些辐射射线的取向向量用于该传输数据被累积并用于形成相对于该平面小于八十五度或大于九十五度的角度的断层图像。

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