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1. 发明授权

US08345979B2 Methods for finding and characterizing a deformed pattern in an image 有权
标题翻译：用于查找和表征图像中的变形图案的方法
公开(公告)号：US08345979B2
公开(公告)日：2013-01-01
申请号：US11670199
申请日：2007-02-01
申请人： Jason Davis
发明人： Jason Davis
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06T7/0079 , G06K9/6206
摘要： A method is disclosed for finding a deformed pattern in an image using a plurality of sub-patterns. By advantageously restricting sub-pattern search ranges, search speed is improved, and the incidence of spurious matches is reduced. The method also quickly decides which sub-pattern result, of several potential candidates, is most likely to be the correct match for a deformed sub-pattern. Also, a method is provided for characterizing a deformed pattern in an image by using results from feature-based search tools to create a mapping that models the deformation of the pattern. A transform, selectable by a user, is fit to the results from the search tools to create a global deformation mapping. This transformation is fit only to feature points derived from matches resulting from successful sub-pattern search, without including data from areas of the pattern that were blank, not matched, or otherwise didn't contain information about the pattern's distorted location.
摘要翻译：公开了一种使用多个子图案在图像中发现变形图案的方法。通过有利地限制子图案搜索范围，提高了搜索速度，并且减少了错配匹配的发生。该方法还快速地确定几个潜在候选者的哪个子模式结果最有可能是变形子模式的正确匹配。此外，提供了一种通过使用基于特征的搜索工具的结果来表征图像中的变形图案以创建对图案的变形进行建模的映射的方法。由用户选择的变换适用于搜索工具的结果，以创建全局变形映射。该变换仅适合于从成功的子模式搜索产生的匹配导出的特征点，而不包括来自空白，不匹配的模式的区域的数据，或者否则不包含关于模式的失真位置的信息。

2. 发明授权

US08342405B2 Light pipe illumination system and method 有权
标题翻译：光管照明系统及方法
公开(公告)号：US08342405B2
公开(公告)日：2013-01-01
申请号：US13294286
申请日：2011-11-11
申请人： Carl W. Gerst, III , William H. Equitz , Justin Testa , Sateesh Nadabar
发明人： Carl W. Gerst, III , William H. Equitz , Justin Testa , Sateesh Nadabar
IPC分类号： G06K7/10
CPC分类号： G02B6/0096 , G06K7/10732 , G06K7/1404 , G06K2007/10485 , G06K2207/1011
摘要： Systems and methods provide for illuminating a subject using a light pipe that transmits light from a source. A method includes providing a light pipe, the light pipe defining an inner lumen through which the image sensor views the subject; providing a light source in alignment with a proximal portion of the light pipe; and using the light source, projecting a light into the light pipe and through the light pipe, the light pipe including a distal portion for providing a high-angle bright field illumination pattern on the subject with a first portion of the light and for reflecting a second portion of the light for providing a low-angle dark field illumination pattern on the subject.
摘要翻译：系统和方法提供使用透射来自光源的光的光管照射对象。一种方法包括提供光管，所述光管限定图像传感器通过所述内部管腔观察所述受试者; 提供与所述光管的近端部分对准的光源; 并且使用所述光源将光投射到所述光管中并且通过所述光管，所述光管包括用于在所述对象上提供具有所述光的第一部分的高角度亮场照明图案的远端部分，并用于反射用于在被摄体上提供低角度暗场照明图案的光的第二部分。

3. 发明授权

US08326084B1 System and method of auto-exposure control for image acquisition hardware using three dimensional information 有权
标题翻译：使用三维信息的图像采集硬件的自动曝光控制系统和方法
公开(公告)号：US08326084B1
公开(公告)日：2012-12-04
申请号：US11019931
申请日：2004-12-21
申请人： Cyril C. Marrion, Jr. , Sanjay Nichani
发明人： Cyril C. Marrion, Jr. , Sanjay Nichani
IPC分类号： G06K9/00
CPC分类号： G06K9/00778 , G06T7/248 , G06T7/285 , G06T7/593 , G06T2207/30201 , G07C9/00 , G07C9/025 , H04N5/2351 , H04N13/296
摘要： A system and method of auto-exposure control is provided for image acquisition hardware using three dimensional information to identify a region(s) of interest within an acquired 2D image or images upon which to apply traditional auto-exposure techniques. By performing auto-exposure analysis over the region of interest, the acquisition property settings can be assigned such that the light levels within the region of interest fall within the linear range, producing sufficient grayscale information for identifying particular objects and profiles in subsequently acquired images. For example, in a machine vision application that detects people passing through a doorway, the region of interest can be the portion of the 2D image that generated 3D features of a head and shoulders profile within a 3D model of the doorway scene. With higher quality images, more accurate detection of people candidates within the monitored scene results.
摘要翻译：为使用三维信息的图像采集硬件提供自动曝光控制的系统和方法，以识别所采集的2D图像内的感兴趣区域或应用传统自动曝光技术的图像。通过在感兴趣的区域上执行自动曝光分析，可以分配采集属性设置，使得感兴趣区域内的光级落在线性范围内，产生用于识别随后获取的图像中的特定对象和轮廓的足够的灰度信息。例如，在检测通过门口的人的机器视觉应用中，感兴趣的区域可以是在门口场景的3D模型内产生头部和肩部轮廓的3D特征的2D图像的部分。以更高质量的图像，更准确地检测监视场景内的人员候选人的结果。

4. 发明授权

US08081820B2 Method for partitioning a pattern into optimized sub-patterns 有权
标题翻译：将模式划分为优化子模式的方法
公开(公告)号：US08081820B2
公开(公告)日：2011-12-20
申请号：US10625201
申请日：2003-07-22
申请人： Jason Davis , Juha Koljonen
发明人： Jason Davis , Juha Koljonen
IPC分类号： G06K9/34 , G06K9/46 , G06K9/66
CPC分类号： G06T7/0042 , G06K9/469 , G06T7/12 , G06T7/162 , G06T7/73
摘要： A method is provided for dividing a pattern into a plurality of sub-patterns, each sub-pattern being adapted for use with an image search method that can provide a plurality of sub-pattern search results. The method represents the pattern as a plurality of feature points, generates candidate partitions of the plurality of feature points, and then scores the candidate partitions by examining characteristics of each potential sub-pattern of each candidate partition. The highest-scoring partition is selected, and then it is applied to the plurality of feature points, creating one or more sub-pluralities of features. The invention advantageously provides a plurality of sub-patterns where each sub-pattern contains enough information to be located with a feature-based search method, where that information has been pre-evaluated as being useful and particularly adapted for running feature-based searches.
摘要翻译：提供了一种用于将图案划分成多个子图案的方法，每个子图案适于与能够提供多个子图案搜索结果的图像搜索方法一起使用。该方法表示作为多个特征点的图案，生成多个特征点的候选分区，然后通过检查每个候选分区的每个潜在子模式的特征来对候选分区进行分数。选择最高分数分区，然后将其应用于多个特征点，创建一个或多个子多个特征。本发明有利地提供了多个子模式，其中每个子模式包含足够的信息以使用基于特征的搜索方法来定位，其中该信息已被预先评估为有用的并且特别适用于运行基于特征的搜索。

5. 发明授权

US07639861B2 Method and apparatus for backlighting a wafer during alignment 有权
标题翻译：在对准期间背光晶片的方法和装置
公开(公告)号：US07639861B2
公开(公告)日：2009-12-29
申请号：US11162540
申请日：2005-09-14
申请人： David J. Michael , John B Boatner , Martin Karnacewicz
发明人： David J. Michael , John B Boatner , Martin Karnacewicz
IPC分类号： G06K9/00
CPC分类号： H01L21/67259 , G03F9/7011 , G03F9/7088
摘要： A method and apparatus is provided for illuminating a wafer during wafer alignment using machine vision. An illumination device is fabricated using electroluminescent material, that provides diffuse illumination uniformly over the surface of the lamp to provide backlighting of the wafer. Contrast between the image of the wafer and the diffuse illumination produce edge features in the image that can be analyzed to determine the position and orientation of the wafer.
摘要翻译：提供了一种用于在使用机器视觉的晶片对准期间照亮晶片的方法和装置。使用电致发光材料制造照明装置，其在灯的表面上均匀地提供漫射照明以提供晶片的背光。晶片的图像与漫射照明之间的对比产生图像中的边缘特征，可以分析晶片的位置和取向。

6. 发明授权

US07545949B2 Method for setting parameters of a vision detector using production line information 有权
标题翻译：使用生产线信息设置视觉检测器参数的方法
公开(公告)号：US07545949B2
公开(公告)日：2009-06-09
申请号：US10979535
申请日：2004-11-02
申请人： Brian V. Mirtich , William M. Silver
发明人： Brian V. Mirtich , William M. Silver
IPC分类号： G06K9/00
CPC分类号： H04N5/23216 , G03B7/087 , G03B7/097
摘要： Disclosed are systems and methods for setting various operating parameters of a vision detector from production line information that can be supplied by a manufacturing technician who is not skilled in the art of the invention. These operating parameters include shutter time, video gain, idle time, frame count, and locator search range. The production line information includes line speed, field of view size, direction of motion, and object spacing.
摘要翻译：公开了用于根据生产线信息设置视觉检测器的各种操作参数的系统和方法，该生产线信息可以由本领域技术人员不熟练的制造技术人员提供。这些操作参数包括快门时间，视频增益，空闲时间，帧数和定位器搜索范围。生产线信息包括线速度，视场尺寸，运动方向和物距。

7. 发明授权

US07417803B2 Focusing mechanism for a vision detector 失效
标题翻译：一种视觉检测器的聚焦机制
公开(公告)号：US07417803B2
公开(公告)日：2008-08-26
申请号：US10991601
申请日：2004-11-18
申请人： George Costigan , Steven N. Goodspeed , David R. King , Robert J. Tremblay, II , John F. Keating , Brian S. Phillips , James Hoffmaster
发明人： George Costigan , Steven N. Goodspeed , David R. King , Robert J. Tremblay, II , John F. Keating , Brian S. Phillips , James Hoffmaster
IPC分类号： G02B15/14 , G02B7/02 , G02B7/04 , G03B17/00 , G03B17/18
CPC分类号： H04N5/2254 , H04N5/2252 , H04N5/2256
摘要： A machine vision image acquisition system is provided with a housing or enclosure that protects the acquisition system components from an industrial environment. The machine vision image acquisition system has a focusing mechanism that can be actuated externally to the housing. The focusing mechanism uses a gear drive to transmit externally actuated focus adjustments to the optical components of the acquisition system.
摘要翻译：机器视觉图像采集系统设置有保护采集系统组件免受工业环境的外壳或外壳。机器视觉图像采集系统具有可以从壳体外部致动的聚焦机构。聚焦机构使用齿轮传动器将外部激活的聚焦调节传送到采集系统的光学部件。

8. 发明授权

US07221805B1 Method for generating a focused image of an object 有权
标题翻译：用于生成对象的聚焦图像的方法
公开(公告)号：US07221805B1
公开(公告)日：2007-05-22
申请号：US10034288
申请日：2001-12-21
申请人： Ivan Bachelder
发明人： Ivan Bachelder
IPC分类号： G06K9/40 , G06K9/00 , G06K9/56 , G06K9/68 , G03B13/00 , H04N5/232 , G06K9/32 , G03B17/00 , H04N5/228
CPC分类号： G03B13/36 , H04N5/23212
摘要： A method is provided for computing a composite image representing a focused image of an object in an application of machine vision in an optical inspection system. An image tessellated into focus regions is evaluated by region for fine feature sharpness. A sharpness image is computed for each focused region using a fine feature sharpness measurement. A focused composite image is computed by combining as a weighted average, the images at several focus settings, using the sharpness image at each focus setting as the weight. The focused composite 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计算在机器视觉应用中表示对象的聚焦图像的合成图像的方法。通过区域评估细分为焦点区域的图像，以获得精细的特征锐度。使用精细的特征锐度测量，为每个聚焦区域计算清晰度图像。通过将每个焦点设置处的锐度图像作为权重组合作为加权平均值，在几个焦点设置处的图像来计算聚焦的合成图像。可以进一步分析，检查或以其他方式处理聚焦的合成图像。

9. 发明授权

US07190834B2 Methods for finding and characterizing a deformed pattern in an image 有权
公开(公告)号：US07190834B2
公开(公告)日：2007-03-13
申请号：US10625205
申请日：2003-07-22
申请人： Jason Davis
发明人： Jason Davis
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06T7/0079 , G06K9/6206
摘要： A method is disclosed for finding a deformed pattern in an image using a plurality of sub-patterns. By advantageously restricting sub-pattern search ranges, search speed is improved, and the incidence of spurious matches is reduced. The method also quickly decides which sub-pattern result, of several potential candidates, is most likely to be the correct match for a deformed sub-pattern. Also, a method is provided for characterizing a deformed pattern in an image by using results from feature-based search tools to create a mapping that models the deformation of the pattern. A transform, selectable by a user, is fit to the results from the search tools to create a global deformation mapping. This transformation is fit only to feature points derived from matches resulting from successful sub-pattern search, without including data from areas of the pattern that were blank, not matched, or otherwise didn't contain information about the pattern's distorted location.

10. 发明授权

US07181066B1 Method for locating bar codes and symbols in an image 有权
标题翻译：用于定位图像中条形码和符号的方法
公开(公告)号：US07181066B1
公开(公告)日：2007-02-20
申请号：US10329908
申请日：2002-12-26
申请人： Adam Wagman , Sateesh G. Nadabar , Jason Davis
发明人： Adam Wagman , Sateesh G. Nadabar , Jason Davis
IPC分类号： G06K9/18
CPC分类号： G06K7/14 , G06K7/1443 , G06K2009/3225
摘要： A search method is disclosed for finding bar code symbols and various two-dimensional symbols, regardless of orientation, that is efficient, robust, and easy to use. The method works well on cluttered backgrounds, on skewed symbols, when symbols are almost touching, and when symbols are adjacent to text. The method includes choosing a candidate start region in the image, and then determining whether the candidate start region includes at least a portion of a candidate oriented encoded signal. Next, an approximate orientation of the candidate oriented encoded signal is determined. Then, the candidate start region is grown, using the approximate orientation, so as to form a candidate symbol region that encloses an entire candidate code symbol, including at least a portion of the candidate start region. The method is finely responsive to orientation.
摘要翻译：公开了一种搜索方法，用于找到条形码符号和各种二维符号，而不管取向如何，这是有效的，鲁棒的和易于使用的。该方法适用于杂乱的背景，偏斜的符号，符号几乎接触时，符号与文本相邻。该方法包括选择图像中的候选开始区域，然后确定候选开始区域是否包括候选定向编码信号的至少一部分。接下来，确定候选定向编码信号的近似取向。然后，使用近似取向生长候选开始区域，以形成包含候选开始区域的至少一部分的整个候选代码符号的候选符号区域。该方法对取向有很好的响应。

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