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1. 发明授权

US06496270B1 Method and system for automatically generating reference height data for use in a three-dimensional inspection system 失效
标题翻译：自动生成用于三维检测系统的参考高度数据的方法和系统
公开(公告)号：US06496270B1
公开(公告)日：2002-12-17
申请号：US09506144
申请日：2000-02-17
申请人： Robert W. Kelley , Donald K. Rohrer , John J. Weisgerber , Donald J. Svetkoff
发明人： Robert W. Kelley , Donald K. Rohrer , John J. Weisgerber , Donald J. Svetkoff
IPC分类号： G01B1124
CPC分类号： G01B11/0608
摘要： A method and system for automatically generating reference height data for use in a 3D inspection system are provided wherein local reference areas on an object are initially determined and then the height of these local reference areas are determined to generate the reference height data. When the object is a printed circuit board, the local reference areas are located relative to predetermined interconnect sites where solder paste is to be deposited or components placed and from which the relative height of the solder paste or components is to be determined using the reference height data during the subsequent inspection process.
摘要翻译：提供了一种用于自动生成用于3D检查系统的参考高度数据的方法和系统，其中初始确定对象上的局部参考区域，然后确定这些局部参考区域的高度以生成参考高度数据。当对象是印刷电路板时，局部参考区域相对于要沉积焊膏或放置组件的预定互连位置定位，并且使用参考高度来确定焊膏或组件的相对高度在随后的检查过程中的数据。

2. 发明授权

US5654800A Triangulation-based 3D imaging and processing method and system 失效
标题翻译：基于三角测量的3D成像和处理方法和系统
公开(公告)号：US5654800A
公开(公告)日：1997-08-05
申请号：US658579
申请日：1996-07-29
申请人： Donald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
发明人： Donald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
IPC分类号： G01B11/24
CPC分类号： G01B11/24
摘要： A triangulation-based method and system for high speed 3D and gray scale imaging and associated pre-processing of digitized information allows for estimation or filtering of height and gray scale values. This estimation is based upon the confidence level of the information obtained from a pair of sensors and also based upon knowledge of the object structure and its reflectance characteristics. A modulated laser beam is scanned across the object to create a plurality of spots which are viewed by a pair of well-matched receivers. Each receiver includes a light collection and delivery system, a position sensitive detector, and an associated ratio-metric signal processor, or similar means for extraction of height and intensity information or data by triangulation. An optional automatic light control sub-system provides greatly extended dynamic range with control inputs derived from an amplifying detector included in each receiver to maximize occurrences of valid data points. Prior to image processing, each point in the digitized 3D and gray scale data is transformed based upon the digital values of the gray scale and height values. The multi-channel pointwise transformation produces an improved estimate of intensity and height at a point of interest, or is used to filter the data for improvements in the 3D and gray scale contrast prior to image processing and measurement analysis. Either linear or non-linear transformations are utilized, based on the match between 3D and/or gray values, and other conditions which determine the confidence level of the information.
摘要翻译：用于高速3D和灰度成像以及数字化信息的相关预处理的基于三角测量的方法和系统允许估计或过滤高度和灰度值。该估计基于从一对传感器获得的信息的置信水平，并且还基于对象结构及其反射特性的知识。经过对象扫描调制的激光束以产生由一对良好匹配的接收机观看的多个点。每个接收器包括光收集和传送系统，位置敏感检测器和相关比率度量信号处理器，或用于通过三角测量提取高度和强度信息或数据的类似装置。可选的自动光控子系统通过从每个接收器中包括的放大检测器得到的控制输入提供极大的扩展动态范围，以最大化有效数据点的出现。在图像处理之前，数字化3D和灰度数据中的每个点都基于灰度和高度值的数字值进行变换。多通道点转换产生了对感兴趣点的强度和高度的改进估计，或者用于过滤数据，以在图像处理和测量分析之前对3D和灰度级对比度进行改进。基于3D和/或灰度值之间的匹配以及确定信息的置信水平的其他条件，使用线性或非线性变换。

3. 发明授权

US5812269A Triangulation-based 3-D imaging and processing method and system 失效
标题翻译：基于三角测量的三维成像和处理方法及系统
公开(公告)号：US5812269A
公开(公告)日：1998-09-22
申请号：US853305
申请日：1997-05-09
申请人： Donald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
发明人： Donald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
IPC分类号： G01B11/24
CPC分类号： G01B11/24
摘要： A triangulation-based method and system for high speed 3D and gray scale imaging and associated pre-processing of digitized information allows for estimation or filtering of height and gray scale values based upon the confidence level of the information obtained from a pair of sensors and also based upon knowledge of the object structure and its reflectance characteristics. A modulated laser beam is scanned across the object to create a plurality of spots which are viewed by a pair of well-matched receivers. Each receiver includes a light collection and delivery system, a position sensitive detector, and an associated ratiometric signal processor, or similar means for extraction of height and intensity information or data by triangulation. An optional automatic light control sub-system provides greatly extended dynamic range with control inputs derived from an amplifying detector included in each receiver to maximize occurrences of valid data points. Prior to image processing, each point in the digitized 3D and gray scale data is transformed based upon the digital values of the gray scale and height values. The multi-channel pointwise transformation produces an improved estimate of intensity and height at a point of interest, or is used to filter the data for improvements in the 3D and gray scale contrast prior to image processing and measurement analysis. Either linear or non-linear transformations are utilized, based on the match between 3D and gray values, and other conditions which determine the confidence level of the information.
摘要翻译：用于高速3D和灰度成像以及相关的数字化信息预处理的基于三角测量的方法和系统允许基于从一对传感器获得的信息的置信水平来估计或过滤高度和灰度值，并且还基于对象结构及其反射特性的知识。经过对象扫描调制的激光束以产生由一对良好匹配的接收机观看的多个点。每个接收器包括光收集和传送系统，位置敏感检测器和相关联的比率信号处理器，或用于通过三角测量提取高度和强度信息或数据的类似装置。可选的自动光控子系统通过从每个接收器中包括的放大检测器得到的控制输入提供极大的扩展动态范围，以最大化有效数据点的出现。在图像处理之前，数字化3D和灰度数据中的每个点都基于灰度和高度值的数字值进行变换。多通道点转换产生了对感兴趣点的强度和高度的改进估计，或者用于过滤数据，以在图像处理和测量分析之前对3D和灰度级对比度进行改进。基于3D和灰度值之间的匹配以及确定信息的置信水平的其他条件，使用线性或非线性变换。

4. 发明授权

US4928313A Method and system for automatically visually inspecting an article 失效
标题翻译：用于自动视觉检查物品的方法和系统
公开(公告)号：US4928313A
公开(公告)日：1990-05-22
申请号：US355816
申请日：1989-05-19
申请人： Patrick F. Leonard , Donald J. Svetkoff , Robert W. Kelley , Donald K. Rohrer , E. North Coleman, Jr.
发明人： Patrick F. Leonard , Donald J. Svetkoff , Robert W. Kelley , Donald K. Rohrer , E. North Coleman, Jr.
IPC分类号： G01N21/956 , G06T7/00
CPC分类号： G06T7/001 , G01N21/956 , G06T2207/30148
摘要： A method and system are disclosed for automatically visually inspecting an article such as an electronic circuit wherein both reference and non-reference algorithms are utilized to detect circuit defects. The system includes a pipelined cellular image processor which is utilized to implement the non-reference algorithm and an arithmetic logic unit (ALU) is coupled to the output of the cellular image processor to perform the reference method. The non-reference method includes a spaces and traces algorithm and the reference method includes a topology matching algorithm. The system also includes an algorithm for locating and gauging critical areas of the circuit with sub-pixel accuracy. The cellular image processor is supported by a matched host image processor system
摘要翻译：公开了用于自动目视检查诸如电子电路的物品的方法和系统，其中使用参考和非参考算法来检测电路缺陷。该系统包括用于实现非参考算法的流水线蜂窝图像处理器，并且算术逻辑单元（ALU）耦合到蜂窝图像处理器的输出以执行参考方法。非参考方法包括空格和跟踪算法，该参考方法包括拓扑匹配算法。该系统还包括用于定位和测量具有子像素精度的电路的关键区域的算法。蜂窝图像处理器由匹配的主机图像处理器系统支持

5. 发明授权

US5546189A Triangulation-based 3D imaging and processing method and system 失效
标题翻译：基于三角测量的3D成像和处理方法和系统
公开(公告)号：US5546189A
公开(公告)日：1996-08-13
申请号：US245864
申请日：1994-05-19
申请人： Ronald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
发明人： Ronald J. Svetkoff , Donald K. Rohrer , Robert W. Kelley
IPC分类号： G01B11/24
CPC分类号： G01B11/24
摘要： A triangulation-based method and system for high speed 3D and gray scale imaging and associated pre-processing of digitized information allows for estimation or filtering of height and gray scale values based upon the confidence level of the information obtained from a pair of sensors and also based upon knowledge of the object structure and its reflectance characteristics. A modulated laser beam is scanned across the object to create a plurality of spots which are viewed by a pair of well-matched receivers. Each receiver includes a light collection and delivery system, a position sensitive detector, and an associated ratio-metric signal processor, or similar means for extraction of height and intensity information or data by triangulation. An optional automatic light control sub-system provides greatly extended dynamic range with control inputs derived from an amplifying detector included in each receiver to maximize occurrences of valid data points. Prior to image processing, each point in the digitized 3D and gray scale data is transformed based upon the digital values of the gray scale and height values. The multi-channel pointwise transformation produces an improved estimate of intensity and height at a point of interest, or is used to filter the data for improvements in the 3D and gray scale contrast prior to image processing and measurement analysis. Either linear or non-linear transformations are utilized, based on the match between 3D and gray values, and other conditions which determine the confidence level of the information.
摘要翻译：用于高速3D和灰度成像以及相关的数字化信息预处理的基于三角测量的方法和系统允许基于从一对传感器获得的信息的置信水平来估计或过滤高度和灰度值，并且还基于对象结构及其反射特性的知识。经过对象扫描调制的激光束以产生由一对良好匹配的接收机观看的多个点。每个接收器包括光收集和传送系统，位置敏感检测器和相关比率度量信号处理器，或用于通过三角测量提取高度和强度信息或数据的类似装置。可选的自动光控子系统通过从每个接收器中包括的放大检测器得到的控制输入提供极大的扩展动态范围，以最大化有效数据点的出现。在图像处理之前，数字化3D和灰度数据中的每个点都基于灰度和高度值的数字值进行变换。多通道点转换产生了对感兴趣点的强度和高度的改进估计，或者用于过滤数据，以在图像处理和测量分析之前对3D和灰度级对比度进行改进。基于3D和灰度值之间的匹配以及确定信息的置信水平的其他条件，使用线性或非线性变换。

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