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公开(公告)号:US20190226835A1
公开(公告)日:2019-07-25
申请号:US16256460
申请日:2019-01-24
发明人: Eric P. Rudd , Carl E. Haugan , Paul R. Haugen
摘要: A system for generating a three-dimensional height image of a reflective target includes an illumination source configured to generate a patterned illumination on the reflective target, and an imaging system configured to acquire an image of the patterned illumination on the reflective target, the illumination source and camera being aligned relative to the target such that the camera acquires a specular image of the patterned illumination. The system further including a controller coupled to the illumination source and the camera configured to generate a first height image of the target based on the acquired image, the first height image being used by the controller to determine a position, a height, and a tilt of the target and calculate an error function based on the determination to compensate the first height image for the calculated error.
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公开(公告)号:US09816287B2
公开(公告)日:2017-11-14
申请号:US14976631
申请日:2015-12-21
发明人: Guangyu Zhou , Eric P. Rudd , Carl E. Haugan
IPC分类号: H04N17/00 , H04N17/02 , E04H17/04 , E04H17/16 , H04N9/31 , H04N9/67 , B29C65/10 , B29C65/00 , B29L31/00 , B29L28/00 , B29C65/14 , B29C65/48 , B29C65/62 , B29C35/04 , B29C65/52 , B29C35/08
CPC分类号: E04H17/04 , B29C65/103 , B29C65/1412 , B29C65/1425 , B29C65/4815 , B29C65/483 , B29C65/522 , B29C65/62 , B29C66/1122 , B29C66/304 , B29C66/431 , B29C66/472 , B29C66/71 , B29C66/712 , B29C66/723 , B29C66/729 , B29C66/742 , B29C66/81465 , B29C66/83411 , B29C66/919 , B29C66/92451 , B29C66/9441 , B29C66/949 , B29C66/9534 , B29C2035/046 , B29C2035/0822 , B29C2035/0855 , B29L2028/00 , B29L2031/73 , E04H17/163 , G01B11/2504 , G01B11/2545 , G01B21/042 , H04N9/3185 , H04N9/3194 , H04N9/67 , B29K2027/06
摘要: A method of calibrating a three-dimensional measurement system having a plurality of cameras and at least one projector is provided. The method includes performing a full calibration for each camera/projector pair where the full calibration generates at least two sets of correction matrices. Subsequently, an updated calibration is performed for each camera/projector pair. The updated calibration changes less than all of the sets of correction matrices.
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公开(公告)号:US11176635B2
公开(公告)日:2021-11-16
申请号:US14160864
申请日:2014-01-22
发明人: Douglas G. Butler , Carl E. Haugan
摘要: A system for measuring solder paste stencil aperture positions and sizes is provided. The system includes at least one camera configured to acquire images of the stencil and an alignment target. A motion system generates relative motion between the at least one camera and the stencil. A controller is coupled to and controls the motion system. The controller is configured to analyze the images to generate aperture information relative to the stencil. The aperture information is provided to automatically program a solder paste inspection system. Other features and benefits that characterize embodiments of the present invention will be apparent upon reading the following detailed description and review of the associated drawings.
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公开(公告)号:US20210088328A1
公开(公告)日:2021-03-25
申请号:US17113753
申请日:2020-12-07
发明人: Paul R. Haugen , Evan J. Ribnick , Carl E. Haugan , Eric P. Rudd
摘要: A method of determining dimensional information of a target surface includes generating a first point cloud corresponding to a first plurality of reconstructed surface points of the target surface generated by a first imaging system-illumination source pair of a phase profilometry system; generating a second point cloud corresponding to a second plurality of reconstructed surface points of the target surface generated by a second imaging system-illumination source pair of the phase profilometry system; generating an initial estimate of the target surface based on the first and second point clouds; and refining the initial surface estimate using positions of the first and second point clouds and geometry of the first and second imaging system-illumination source pairs to generate a final point cloud.
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公开(公告)号:US20160180511A1
公开(公告)日:2016-06-23
申请号:US14976631
申请日:2015-12-21
发明人: Guangyu Zhou , Eric P. Rudd , Carl E. Haugan
CPC分类号: E04H17/04 , B29C65/103 , B29C65/1412 , B29C65/1425 , B29C65/4815 , B29C65/483 , B29C65/522 , B29C65/62 , B29C66/1122 , B29C66/304 , B29C66/431 , B29C66/472 , B29C66/71 , B29C66/712 , B29C66/723 , B29C66/729 , B29C66/742 , B29C66/81465 , B29C66/83411 , B29C66/919 , B29C66/92451 , B29C66/9441 , B29C66/949 , B29C66/9534 , B29C2035/046 , B29C2035/0822 , B29C2035/0855 , B29L2028/00 , B29L2031/73 , E04H17/163 , G01B11/2504 , G01B11/2545 , G01B21/042 , H04N9/3185 , H04N9/3194 , H04N9/67 , B29K2027/06
摘要: A method of calibrating a three-dimensional measurement system having a plurality of cameras and at least one projector is provided. The method includes performing a full calibration for each camera/projector pair where the full calibration generates at least two sets of correction matrices. Subsequently, an updated calibration is performed for each camera/projector pair. The updated calibration changes less than all of the sets of correction matrices.
摘要翻译: 提供了一种校准具有多个相机和至少一个投影仪的三维测量系统的方法。 该方法包括对完整校准产生至少两组校正矩阵的每个相机/投影仪对执行完全校准。 随后,对每个相机/投影仪对执行更新的校准。 更新的校准变化小于所有校正矩阵组。
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公开(公告)号:US11604062B2
公开(公告)日:2023-03-14
申请号:US17113753
申请日:2020-12-07
发明人: Paul R. Haugen , Evan J. Ribnick , Carl E. Haugan , Eric P. Rudd
摘要: A method of determining dimensional information of a target surface includes generating a first point cloud corresponding to a first plurality of reconstructed surface points of the target surface generated by a first imaging system-illumination source pair of a phase profilometry system; generating a second point cloud corresponding to a second plurality of reconstructed surface points of the target surface generated by a second imaging system-illumination source pair of the phase profilometry system; generating an initial estimate of the target surface based on the first and second point clouds; and refining the initial surface estimate using positions of the first and second point clouds and geometry of the first and second imaging system-illumination source pairs to generate a final point cloud.
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公开(公告)号:US10346963B2
公开(公告)日:2019-07-09
申请号:US14850470
申请日:2015-09-10
发明人: Eric P. Rudd , Carl E. Haugan
摘要: A computer-implemented method of and system for measuring a three-dimensional surface are provided. The method includes projecting structured illumination on the surface and acquiring a plurality of sets of images. The sets of images are processed to obtain a plurality of point clouds. A spatial accumulator is defined. A first point cloud of the plurality of point clouds is combined with a second point cloud of the plurality of point clouds into the spatial accumulator. Spatial coordinates of the surface are generated based on the contents of the spatial accumulator.
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公开(公告)号:US20140210993A1
公开(公告)日:2014-07-31
申请号:US14160864
申请日:2014-01-22
发明人: Douglas G. Butler , Carl E. Haugan
CPC分类号: G06T3/00 , G06K9/6255 , G06T7/001 , G06T2207/30141
摘要: A system for measuring solder paste stencil aperture positions and sizes is provided. The system includes at least one camera configured to acquire images of the stencil and an alignment target. A motion system generates relative motion between the at least one camera and the stencil. A controller is coupled to and controls the motion system. The controller is configured to analyze the images to generate aperture information relative to the stencil. The aperture information is provided to automatically program a solder paste inspection system. Other features and benefits that characterize embodiments of the present invention will be apparent upon reading the following detailed description and review of the associated drawings.
摘要翻译: 提供了一种用于测量焊膏孔板孔径位置和尺寸的系统。 该系统包括至少一个被配置为获取模板和对准目标的图像的照相机。 运动系统在至少一个相机和模板之间产生相对运动。 控制器耦合到并控制运动系统。 控制器被配置为分析图像以产生相对于模版的孔径信息。 提供光圈信息以自动编程焊膏检查系统。 通过阅读以下有关附图的详细描述和审查,本发明的实施例的其它特征和益处将是显而易见的。
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公开(公告)号:US11073380B2
公开(公告)日:2021-07-27
申请号:US16256579
申请日:2019-01-24
发明人: Eric P. Rudd , Carl E. Haugan , Paul R. Haugen
摘要: A system for generating a three-dimensional height image of a reflective test target includes an illumination source configured to generate a patterned illumination on the test target, an imaging system configured to acquire an image of the patterned illumination on the test target, and a variable focus optical system configured to cause the camera to image the test target with at least two distinct focus positions, the illumination source and camera being aligned relative to the test target such that the camera acquires a specular image of the patterned illumination. The system further including a controller coupled to the illumination source, the camera and the variable focus optical system, the controller being configured to generate a height image of the test target based on the acquired image of the patterned illumination using at least two distinct focal positions.
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公开(公告)号:US20170264885A1
公开(公告)日:2017-09-14
申请号:US15455635
申请日:2017-03-10
发明人: Carl E. Haugan , Gregory G. Hetzler , David W. Duquette , Jean-Louis Leon Dethier , Eric P. Rudd
摘要: A three-dimensional non-contact scanning system is provided. The system includes a stage and at least one scanner configured to scan an object on the stage. A motion control system is configured to generate relative motion between the at least one scanner and the stage. A controller is coupled to the at least one scanner and the motion control system. The controller is configured to perform a field calibration where an artifact having features with known positional relationships is scanned by the at least one scanner in a plurality of different orientations to generate sensed measurement data corresponding to the features. Deviations between the sensed measurement data and the known positional relationships are determined. Based on the determined deviations, a coordinate transform is calculated for each of the at least one scanner where the coordinate transform reduces the determined deviations.
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