公开(公告)号：US09883797B1

公开(公告)日：2018-02-06

申请号：US14277139

申请日：2014-05-14

申请人： Gang Liu ,  Lei Wang ,  Lowell D. Jacobson

发明人： Gang Liu ,  Lei Wang ,  Lowell D. Jacobson

IPC分类号： A61B3/14 ,  A61B3/10 ,  A61B3/00 ,  A61B3/113

CPC分类号： A61B3/113 ,  A61B3/0041 ,  A61B3/14 ,  G06K9/0061

摘要： A system and method for automated determination of position and movement of a contact lens with respect to a subject wearer's eye based upon a complimentary pair of images, acquired in rapid succession, in which one image of the pair is acquired using light that allows viewing of the pupil and/or limbus through the lens and the other image is acquired using light that is absorbed by the lens to generate an opaque image with a defined edge relative to the surrounding sclera. The images of the pair are acquired in close enough temporal proximity to ensure that eye movement in the interval therebetween is insignificant and both images are in the same approximate reference frame. Thus, the location of the pupil and limbus in one image can be accurately compared with the location of the contact lens edge in the other image.

公开(公告)号：US08971663B2

公开(公告)日：2015-03-03

申请号：US13625021

申请日：2012-09-24

申请人： Lowell D. Jacobson ,  Gang Liu

发明人： Lowell D. Jacobson ,  Gang Liu

IPC分类号： G06K9/36 ,  G06K9/32 ,  G06K9/62 ,  G06T7/00 ,  G06K9/00

CPC分类号： G06K9/3216 ,  G06K9/6255 ,  G06T7/001 ,  G06T2207/10024 ,  G06T2207/20221 ,  G06T2207/30144

摘要： A system and method for generating golden template images in a vision system to inspect an acquired runtime image of an object with a multi-layer printed pattern is provided. The system and method performs a registration process on runtime images using registration models each trained on respective canonical layer mask images, and outputting poses. Based upon the poses, warped layer masks are generated. Combination masks are computed based upon differing combinations of the warped layer masks. Intensity values for pixels of the foreground regions for the combination masks are estimated. The estimated intensity values are then blended associated with the combination masks to generate a golden template image. This golden template image can be used to compare with a runtime image. An exemplary application of this system and method is in print inspection on flat and non-flat surfaces.

摘要翻译： 提供了一种用于在视觉系统中生成金色模板图像以用多层印刷图案检查对象的获取的运行时图像的系统和方法。 该系统和方法使用每个训练在各个规范层掩模图像上的注册模型并输出姿势来对运行时图像执行注册过程。 基于姿态，产生翘曲层掩模。 基于翘曲层掩模的不同组合来计算组合掩模。 估计用于组合掩码的前景区域的像素的强度值。 然后将估计的强度值与组合掩模相关联以生成金色模板图像。 此黄金模板图像可用于与运行时映像进行比较。 该系统和方法的示例性应用是在平坦和非平坦表面上进行打印检查。

公开(公告)号：US20130308875A1

公开(公告)日：2013-11-21

申请号：US13625021

申请日：2012-09-24

申请人： Lowell D. Jacobson ,  Gang Liu

发明人： Lowell D. Jacobson ,  Gang Liu

IPC分类号： G06K9/32

CPC分类号： G06K9/3216 ,  G06K9/6255 ,  G06T7/001 ,  G06T2207/10024 ,  G06T2207/20221 ,  G06T2207/30144

摘要： A system and method for generating golden template images in a vision system to inspect an acquired runtime image of an object with a multi-layer printed pattern is provided. The system and method performs a registration process on runtime images using registration models each trained on respective canonical layer mask images, and outputting poses. Based upon the poses, warped layer masks are generated. Combination masks are computed based upon differing combinations of the warped layer masks. Intensity values for pixels of the foreground regions for the combination masks are estimated. The estimated intensity values are then blended associated with the combination masks to generate a golden template image. This golden template image can be used to compare with a runtime image. An exemplary application of this system and method is in print inspection on flat and non-flat surfaces.

摘要翻译： 提供了一种用于在视觉系统中生成金色模板图像以用多层印刷图案检查对象的获取的运行时图像的系统和方法。 该系统和方法使用每个训练在各个规范层掩模图像上的注册模型并输出姿势来对运行时图像执行注册过程。 基于姿态，产生翘曲层掩模。 基于翘曲层掩模的不同组合来计算组合掩模。 估计用于组合掩码的前景区域的像素的强度值。 然后将估计的强度值与组合掩模相关联以生成金色模板图像。 此黄金模板图像可用于与运行时映像进行比较。 该系统和方法的示例性应用是在平坦和非平坦表面上进行打印检查。

公开(公告)号：US08570516B2

公开(公告)日：2013-10-29

申请号：US12977229

申请日：2010-12-23

申请人： Gang Liu ,  Lei Wang

发明人： Gang Liu ,  Lei Wang

IPC分类号： G01B11/00

CPC分类号： G03F9/00 ,  G03F9/7065 ,  G03F9/7084 ,  G03F9/7088

摘要： A vision system is provided to determine a positional relationship between a semiconductor wafer on a platen and an element on a processing machine, such as a printing screen, on a remote side of the semiconductor wafer from the platen. A source directs infrared light through an aperture in the platen to illuminate the semiconductor wafer and cast a shadow onto the element adjacent an edge of the semiconductor wafer. A video camera produces an image using light received from the platen aperture, wherein some of that received light was reflected by the wafer. The edge of the semiconductor wafer in the image is well defined by a dark/light transition.

摘要翻译： 提供了一种视觉系统，用于确定压板上的半导体晶片与半导体晶片的远离压纸台的诸如印刷屏幕的处理机器上的元件之间的位置关系。 源将红外光引导通过压板中的孔以照亮半导体晶片并将阴影投射到与半导体晶片的边缘相邻的元件上。 摄像机使用从压板孔接收的光产生图像，其中一些所接收的光被晶片反射。 图像中的半导体晶片的边缘由暗/光转变很好地限定。

公开(公告)号：US08740382B1

公开(公告)日：2014-06-03

申请号：US13250328

申请日：2011-09-30

申请人： Gang Liu ,  Lei Wang ,  Lowell Jacobson

发明人： Gang Liu ,  Lei Wang ,  Lowell Jacobson

IPC分类号： A61B3/14 ,  A61B3/10 ,  A61B3/00

CPC分类号： A61B3/113 ,  A61B3/0041 ,  A61B3/14 ,  G06K9/0061

摘要： A system and method for automated determination of position and movement of a contact lens with respect to a subject wearer's eye based upon a complimentary pair of images, acquired in rapid succession, in which one image of the pair is acquired using light that allows viewing of the pupil and/or limbus through the lens and the other image is acquired using light that is absorbed by the lens to generate an opaque image with a defined edge relative to the surrounding sclera. The images of the pair are acquired in close enough temporal proximity to ensure that eye movement in the interval therebetween is insignificant and both images are in the same approximate reference frame. Thus, the location of the pupil and limbus in one image can be accurately compared with the location of the contact lens edge in the other image.

摘要翻译： 一种系统和方法，用于基于快速连续获取的互补图像，自动确定隐形眼镜相对于被摄体佩戴者的眼睛的位置和运动，其中使用允许观看 通过透镜和另一图像的瞳孔和/或角膜通过被透镜吸收的光来获得，以产生具有相对于周围巩膜的限定边缘的不透明图像。 以足够接近的时间获取该对的图像，以确保其间的间隔中的眼睛移动是无关紧要的，并且两个图像在相同的近似参考系中。 因此，可以将一个图像中的瞳孔和角膜缘的位置与另一图像中的隐形眼镜边缘的位置精确地比较。

公开(公告)号：US08733656B2

公开(公告)日：2014-05-27

申请号：US13477351

申请日：2012-05-22

申请人： Lei Wang ,  Gang Liu ,  David Li

发明人： Lei Wang ,  Gang Liu ,  David Li

IPC分类号： G06K7/10

CPC分类号： G06K9/3216 ,  B07C3/18 ,  B07C5/3412 ,  G06K7/10861 ,  G06K2209/19

摘要： An apparatus for associating codes on parts with part spaces on a conveyor wherein each part has a leading edge and a trailing edge that define a part space and each part is to be marked with at least one code, the apparatus comprising an area scan camera having a two dimensional field of view (FOV), the camera supported adjacent the conveyor so that parts conveyed by the conveyor pass through the FOV, a processor linked to the area scan camera, the processor programmed to perform the steps of receiving images from the area scan camera, identifying the locations of codes on parts in at least one of the images wherein a code located is a located code, identifying the locations of leading and trailing edges of parts wherein the leading and trailing edges define part spaces and associating each located code with a part space that includes the location of the located code.

摘要翻译： 一种用于将部件上的代码与输送机上的部分空间相关联的装置，其中每个部件具有限定部分空间的前缘和后缘，并且每个部分将被标记有至少一个代码，该装置包括区域扫描相机， 二维视场（FOV），相机支撑在输送机附近，使得由输送机输送的部分通过FOV，连接到区域扫描摄像机的处理器，被编程为执行从该区域接收图像的步骤的处理器 扫描相机，识别至少一个图像中的部件上的代码的位置，其中定位的代码是定位的代码，标识部件的前边缘和后缘的位置，其中前边缘和后边缘定义部分空间并且将每个定位的代码 其中包含位置代码的位置的部分空间。

公开(公告)号：US20130313312A1

公开(公告)日：2013-11-28

申请号：US13477351

申请日：2012-05-22

申请人： Lei Wang ,  Gang Liu ,  David Li

发明人： Lei Wang ,  Gang Liu ,  David Li

IPC分类号： G06F17/00

CPC分类号： G06K9/3216 ,  B07C3/18 ,  B07C5/3412 ,  G06K7/10861 ,  G06K2209/19

摘要： An apparatus for associating codes on parts with part spaces on a conveyor wherein each part has a leading edge and a trailing edge that define a part space and each part is to be marked with at least one code, the apparatus comprising an area scan camera having a two dimensional field of view (FOV), the camera supported adjacent the conveyor so that parts conveyed by the conveyor pass through the FOV, a processor linked to the area scan camera, the processor programmed to perform the steps of receiving images from the area scan camera, identifying the locations of codes on parts in at least one of the images wherein a code located is a located code, identifying the locations of leading and trailing edges of parts wherein the leading and trailing edges define part spaces and associating each located code with a part space that includes the location of the located code.

摘要翻译： 一种用于将部件上的代码与输送机上的部分空间相关联的装置，其中每个部件具有限定部分空间的前缘和后缘，并且每个部分将被标记有至少一个代码，该装置包括区域扫描相机， 二维视场（FOV），相机支撑在输送机附近，使得由输送机输送的部分通过FOV，连接到区域扫描摄像机的处理器，被编程为执行从该区域接收图像的步骤的处理器 扫描相机，识别至少一个图像中的部件上的代码的位置，其中定位的代码是定位的代码，标识部件的前边缘和后缘的位置，其中前边缘和后边缘定义部分空间并且将每个定位的代码 其中包含位置代码的位置的部分空间。

公开(公告)号：US08189194B2

公开(公告)日：2012-05-29

申请号：US12209248

申请日：2008-09-12

申请人： John W. Schwab ,  Gang Liu ,  David J. Michael ,  Lei Wang

发明人： John W. Schwab ,  Gang Liu ,  David J. Michael ,  Lei Wang

IPC分类号： G01B11/00

CPC分类号： G03F9/00 ,  G03F9/7065 ,  G03F9/7084 ,  G03F9/7088

摘要： A vision system is provided to determine a positional relationship between a semiconductor wafer on a platen and an element on a processing machine, such as a printing screen, on a remote side of the semiconductor wafer from the platen. A source directs ultraviolet light through an aperture in the platen to illuminate the semiconductor wafer and cast a shadow onto the element adjacent an edge of the semiconductor wafer. A video camera produces an image using light received from the platen aperture, wherein some of that received light was reflected by the wafer. The edge of the semiconductor wafer in the image is well defined by a dark/light transition.

摘要翻译： 提供了一种视觉系统，用于确定压板上的半导体晶片与半导体晶片的远离压纸台的诸如印刷屏幕的处理机器上的元件之间的位置关系。 光源通过压板中的孔引导紫外光照射半导体晶片并将阴影投射到与半导体晶片的边缘相邻的元件上。 摄像机使用从压板孔接收的光产生图像，其中一些所接收的光被晶片反射。 图像中的半导体晶片的边缘由暗/光转变很好地限定。

公开(公告)号：US20100065757A1

公开(公告)日：2010-03-18

申请号：US12209248

申请日：2008-09-12

申请人： John W. Schwab ,  Gang Liu ,  David J. Michael ,  Lei Wang

发明人： John W. Schwab ,  Gang Liu ,  David J. Michael ,  Lei Wang

IPC分类号： G01N23/00 ,  G01B11/00 ,  G02B27/30

CPC分类号： G03F9/00 ,  G03F9/7065 ,  G03F9/7084 ,  G03F9/7088

摘要： A vision system is provided to determine a positional relationship between a semiconductor wafer on a platen and an element on a processing machine, such as a printing screen, on a remote side of the semiconductor wafer from the platen. A source directs ultraviolet light through an aperture in the platen to illuminate the semiconductor wafer and cast a shadow onto the element adjacent an edge of the semiconductor wafer. A video camera produces an image using light received from the platen aperture, wherein some of that received light was reflected by the wafer. The edge of the semiconductor wafer in the image is well defined by a dark/light transition.

摘要翻译： 提供了一种视觉系统，用于确定压板上的半导体晶片与半导体晶片的远离压纸台的诸如印刷屏幕的处理机器上的元件之间的位置关系。 光源通过压板中的孔引导紫外光照射半导体晶片并将阴影投射到与半导体晶片的边缘相邻的元件上。 摄像机使用从压板孔接收的光产生图像，其中一些所接收的光被晶片反射。 图像中的半导体晶片的边缘由暗/光转变很好地限定。

公开(公告)号：US10914361B2

公开(公告)日：2021-02-09

申请号：US16201979

申请日：2018-11-27

申请人： Gang Liu

发明人： Gang Liu

IPC分类号： F16H1/28 ,  F16H57/04 ,  F16H3/44 ,  F16H57/031 ,  F16H57/038

摘要： Disclosed is a multi-gear torquer with end covers on both sides of the casing. An input shaft and an output shaft are respectively arranged at the center of the two end covers. A sun gear is fixed on the input shaft and moves along a planet gear engaged in the transmission mechanism. The planet gear meshes with a gear ring and moves around the sun gear, then the planet gear drives the turntable centrally fixed with the output shaft connected to the load end. The multi-gear torquer disclosed herein has the following advantages: large output torque and high mechanical efficiency, and it can be used as power transmission equipment for a car or a train and used as other mechanical transmission equipment.