公开(公告)号：US5668887A

公开(公告)日：1997-09-16

申请号：US425640

申请日：1995-04-20

Applicant: H. Galen Parker ,  Richard Dean Young

Inventor： H. Galen Parker ,  Richard Dean Young

IPC: G01N21/01 ,  G01N21/89 ,  G01N21/892 ,  G01N21/93 ,  G01N21/95 ,  H04N1/00 ,  H04N5/372 ,  H04N7/18 ,  G01N21/00

CPC classification number: H04N5/37206 ,  G01N21/8422 ,  G01N21/89 ,  G01N21/8903 ,  H04N3/1525 ,  G01N2021/0168 ,  G01N2021/8427 ,  G01N2021/8838 ,  G01N2021/8887 ,  G01N2021/936 ,  G01N2201/102

Abstract: An image processor based system and method for recognizing predefined-types of coating density imperfections in a web, specifically continuous type or streak imperfections. Continuous type imperfections are recognized in a continuous web moved at a certain rate through an imaging region illuminated by a stripe of substantially constant illumination. A time-delay integrating CCD camera is focused on the illuminated imaging region. The TDI CCD camera comprises an array of N rows of M light sensitive CCD elements each imaged on a fixed discrete pixel-related image area of the illuminated imaging region. The charge levels accumulated in the CCD elements of each row are shifted to the succeeding row or CCD elements and summed with the charge levels therein at a line shift clock frequency that ensures that an asynchronous relationship exists with respect to the incremental movement of the web. During the clock cycle of the N rows, the corresponding pixel areas of the illuminated web shift asynchronously or creep through the discrete pixel-related image areas. The accumulated pixel charge values derived from the pixel-related image areas of the illuminated region of said moving web emphasize imaging of longitudinal streak imperfections in the web due to the asynchronous movement the web.

Abstract translation: 一种基于图像处理器的系统和方法，用于识别网中预定类型的涂层密度缺陷，特别是连续类型或条纹缺陷。 通过由基本上恒定的照明条纹照射的成像区域以一定的速率移动的连续幅材中识别出连续型缺陷。 集成CCD相机的延时集中在照明成像区域。 TDI CCD摄像机包括N行M个光敏CCD元件的阵列，每个成像在照明成像区域的固定离散像素相关图像区域上。 累积在每行的CCD元件中的电荷电平被移动到后面的行或CCD元件，并且以线移位时钟频率与其中的电荷电平相加，以确保相对于幅的增量移动存在异步关系。 在N行的时钟周期期间，被照射的web的相应的像素区域异步地移动或者通过离散的像素相关的图像区域来移动。 从所述移动幅材的被照射区域的像素相关图像区域导出的累积的像素电荷值强调了由于网状物的异步移动而在幅材中的纵向条纹缺陷的成像。

公开(公告)号：US5598262A

公开(公告)日：1997-01-28

申请号：US325172

申请日：1995-04-20

Applicant: Yann Jutard ,  Jean-Jacques Sacre

Inventor： Yann Jutard ,  Jean-Jacques Sacre

IPC: G01N21/88 ,  G01N21/896 ,  G01N21/958 ,  G01N33/38 ,  G01N21/89

CPC classification number: G01N33/386 ,  G01N21/896 ,  G01N2021/8832 ,  G01N2021/8887 ,  G01N2021/8962 ,  G01N2021/8967 ,  G01N2201/102

Abstract: The inspection method, in order to detect and locate defects (5) included within the thickness of the transparent material (2) to be inspected, consists in uniformly illuminating a bright background (7) placed relative to the camera (4) behind the material (2) in order to be viewed by transparency through the material (2), covering the field of view of the camera (4) and serving as contrast reference, in laterally illuminating the surface of the material (2) in order to distinguish defects (5) included within the material (2) from parasitic elements (11) deposited on its surface, in viewing by transparency, by the camera (4), placed in the vertical to the surface of the material (2), a sequence of contrasted images reproducing the thickness of the material (2), and in processing information acquired by the successive images which are representative of the material (2) seen in its thickness in order to detect and locate the defects (5) included within the thickness of the material (2).

Abstract translation: PCT No.PCT / FR93 / 01015 Sec。 371日期1995年04月20日 102（e）1995年4月20日PCT PCT 1993年10月13日PCT公布。 出版物WO94 / 09358 日期1994年4月28日检查方法为了检测和定位包括在待检查的透明材料（2）的厚度内的缺陷（5），其包括均匀地照亮相对于相机放置的明亮背景（7） 4）在材料（2）之后，为了通过材料（2）透明度观察，覆盖相机（4）的视场并用作对比度参考，在横向照射材料（2）的表面时， 为了将材料（2）中包含的缺陷（5）与沉积在其表面上的寄生元件（11）相区别，通过照相机（4）以透明度观察，放置在材料（2）的表面垂直方向 ），再现材料（2）的厚度的对比图像序列，以及处理由其厚度上看到的代表材料（2）的连续图像所获取的信息，以便检测和定位缺陷（5） 包括在厚度内 材料（2）。

公开(公告)号：US5359416A

公开(公告)日：1994-10-25

申请号：US963572

申请日：1992-10-19

Applicant: Mark K. Mueller

Inventor： Mark K. Mueller

IPC: G01N21/95 ,  G01N21/47

CPC classification number: G01N21/9515 ,  G01N2021/8864 ,  G01N2021/8887 ,  G01N2021/9518 ,  G01N2201/102 ,  G01N2201/1085

Abstract: A system and process for detecting and monitoring defects in large surfaces such as the field joints of the container segments of a space shuttle booster motor. Beams of semi-collimated light from three non-parallel fiber optic light panels are directed at a region of the surface at non-normal angles of expected incidence. A video camera gathers some portion of the light that is reflected at an angle other than the angle of expected reflectance, and generates signals which are analyzed to discern defects in the surface. The analysis may be performed by visual inspection of an image on a video monitor, or by inspection of filtered or otherwise processed images. In one alternative embodiment, successive predetermined regions of the surface are aligned with the light source before illumination, thereby permitting efficient detection of defects in a large surface. Such alignment is performed by using a line scan gauge to sense the light which passes through an aperture in the surface. In another embodiment a digital map of the surface is created, thereby permitting the maintenance of records detailing changes in the location or size of defects as the container segment is refurbished and re-used. The defect detection apparatus may also be advantageously mounted on a fixture which engages the edge of a container segment.

Abstract translation: 用于检测和监测诸如航天飞机增压马达的容器段的大面积的缺陷的系统和过程。 来自三个非平行光纤光板的半准直光束是指以预定入射角为非正常角度的表面区域。 视频摄像机收集除了预期反射角度之外的角度反射的光的一部分，并产生被分析的信号以辨别表面中的缺陷。 分析可以通过目视检查视频监视器上的图像，或者通过检查过滤的或以其他方式处理的图像来执行。 在一个替代实施例中，表面的连续预定区域在照射之前与光源对准，从而允许有效地检测大表面中的缺陷。 通过使用线扫描仪来感测通过表面中的孔的光来进行这种对准。 在另一个实施例中，创建表面的数字地图，从而允许维护记录，以便在容器段被翻新和重新使用时详细描述缺陷的位置或尺寸的变化。 缺陷检测装置还可以有利地安装在与容器段的边缘接合的固定件上。

公开(公告)号：US5283443A

公开(公告)日：1994-02-01

申请号：US937872

申请日：1992-12-03

Applicant: Leonard Norton-Wayne ,  Siavash Abbasszadeh

Inventor： Leonard Norton-Wayne ,  Siavash Abbasszadeh

IPC: A41H43/00 ,  D06H3/08 ,  G01N21/88 ,  G01N21/898

CPC classification number: D06H3/08 ,  G01N21/8983 ,  G01N2021/8887 ,  G01N2201/102

Abstract: A method for inspecting garments for holes includes front-lighting the garment against a contrasting background and forming a pixel image thereof, isolating garment pixels from background pixels by automatically selecting an optimum binarization threshold grey level, binarizing the image at that level, determining the garment boundary, testing for consistency of grey level within the garment boundary on the binarized image along rows and columns of pixels within the garment boundary and noting inconsistent pixels, and identifying as holes only pixels which have been noted as inconsistent in both horizontal and vertical tests.

Abstract translation: PCT No.PCT / GB91 / 00536 Sec。 371日期1992年12月3日 102（e）日期1992年12月3日PCT PCT 1991年4月5日PCT公布。 公开号WO92 / 08967 日期：1992年5月29日。用于检查孔的衣服的方法包括：针对对比背景对衣服进行前照射并形成其像素图像，通过自动选择最佳二值化阈值灰度等级来将衣服像素与背景像素隔离，将图像二值化 确定服装边界，测试服装边界内的服装边界内的灰度级在服装边界内沿着行和列的像素的二值化图像的一致性，并注意到不一致的像素，并且将仅识别为不一致的像素 水平和垂直测试。

公开(公告)号：US5224172A

公开(公告)日：1993-06-29

申请号：US732103

申请日：1991-07-18

Applicant: Tetsuji Masai

Inventor： Tetsuji Masai

IPC: G01B11/00 ,  B65H54/28 ,  B65H54/34 ,  B65H63/00 ,  B65H63/06 ,  D01H13/26 ,  D06H3/08 ,  G01N21/84 ,  G01N21/88 ,  G01N21/89 ,  G06T7/00 ,  H04N5/225 ,  H04N7/18

CPC classification number: G06T7/0004 ,  G01N21/88 ,  G01N2021/8887 ,  G01N2021/8896 ,  G01N2201/102 ,  G06T2207/30124

Abstract: In a cobwebbing detection device of the type in which light illuminates the end surface of a package and a cobwebbed yarn is detected by photographing the end surface by a CCD camera, a cobwebbing detection device has a binary encoder which converts each pixel of the image data into a binary coded data, a storage device, for storing the binary-coded pixel data, and a detection circuit which detects each pixel [1] or [0] in each scanning.

Abstract translation: 在通过CCD照相机拍摄端面来检测光照射包装的端面的蛛丝网检测装置和蛛丝网纱时，蛛丝网检测装置具有将图像数据的每个像素进行转换的二进制编码器 转换为二进制编码数据，用于存储二进制编码像素数据的存储装置，以及检测电路，其检测每次扫描中的每个像素[1]或[0]。

公开(公告)号：US5173796A

公开(公告)日：1992-12-22

申请号：US703285

申请日：1991-05-20

Applicant: Steven G. Palm ,  Elwin M. Beaty

Inventor： Steven G. Palm ,  Elwin M. Beaty

IPC: G01B11/02 ,  G01N21/88 ,  G01N21/93 ,  G01N21/956 ,  G02B26/10 ,  H04N1/19

CPC classification number: G02B26/101 ,  G01B11/02 ,  G01N21/88 ,  G01N2021/8887 ,  G01N2021/95638 ,  G01N21/93 ,  G01N2201/102 ,  G01N2201/1053 ,  Y10S359/90

Abstract: A part scanning and part calibration apparatus and mechanism for the inspection of printed circuit boards and integrated circuits include a camera and two rotating mirrors to scan an image of a pattern mask retical upon which a precise pattern has been deposited. Small parts are placed upon the retical to be inspected. The third overhead mirror is provided to view the part under inspection from another perspective. The scene of the part is triangulated and the dimensions of the system can thus be calibrated. A precise retical mask is provided with dot patterns which provide an additional set of information needed for calibration. By scanning more then one dot pattern the missing state values can be resolved using an iterative trigonomic solution.

Abstract translation: 用于检查印刷电路板和集成电路的部件扫描和部件校准装置和机构包括相机和两个旋转镜，用于扫描已经沉积精确图案的图案掩模图案的图像。 小部件放置在被检查的retical上。 提供第三顶置反射镜以从另一个角度来观察被检查的部件。 该部件的场景是三角形的，因此可以校准系统的尺寸。 提供了精确的掩模掩模，其具有提供校准所需的另外一组信息的点图案。 通过扫描更多的一个点图案，可以使用迭代的三角解决方案来解决缺失的状态值。

公开(公告)号：US5051825A

公开(公告)日：1991-09-24

申请号：US409148

申请日：1989-09-19

Applicant: Don W. Cochran ,  James R. Austin

Inventor： Don W. Cochran ,  James R. Austin

IPC: G01B11/30 ,  G01N21/84 ,  G01N21/88 ,  G01N21/954 ,  G01N21/956 ,  G06T1/00 ,  H04N7/18

CPC classification number: G01N21/909 ,  G01N21/8806 ,  H04N7/18 ,  G01N2021/8455 ,  G01N2021/8887 ,  G01N2021/95615 ,  G01N2201/06153 ,  G01N2201/102

Abstract: A video inspection system includes first and second video cameras mounted along parallel axes. A lighting array is pulsed, and resultant light is reflected from a specimen to both cameras. Orientation of the specimen is determined in accordance with an image generated from a first camera. This data is used to isolate a selected portion of the specimen for analysis by an image generated from the second camera.

Abstract translation: 视频检查系统包括沿着平行轴安装的第一和第二摄像机。 照明阵列是脉冲的，并且所得到的光从样本反射到两个照相机。 根据从第一相机产生的图像来确定样本的取向。 该数据用于通过由第二照相机产生的图像来隔离样本的选定部分进行分析。

公开(公告)号：US4896211A

公开(公告)日：1990-01-23

申请号：US186446

申请日：1988-04-26

Applicant: Robert P. Hunt ,  Martin Shih

Inventor： Robert P. Hunt ,  Martin Shih

IPC: G01N21/84 ,  G01N21/88 ,  G01N21/89 ,  H04N5/253 ,  H04N5/372 ,  H04N7/18

CPC classification number: H04N5/37206 ,  G01N21/88 ,  G01N21/89 ,  H04N3/1525 ,  H04N3/155 ,  H04N5/253 ,  H04N7/188 ,  G01N2021/845 ,  G01N2021/8887 ,  G01N2201/102

Abstract: As an object moves along a conveyor (A), a position sensor (B) generates a trigger signal. The trigger signal causes a strobe (14) to emit a high intensity flash of light into an examination region. A lens (20) of a CCD camera (C) focuses light from the examination region both before and during the flash on an image section (24) of a CCD array (22). Subsequent to the flash, a trigger signal delay circuit (16) causes a control circuit (D) to shift the lines of pixel values from the image section into a storage section (26), from the storage section to shift registers (32), and serially from the shift register as a video signal. A video signal channel (52) refines the video signal which is transferred to a computer system (E) which implements a preselected quality control algorithm selected in accordance with a product to be examined. The control circuit includes a pulse generator (74), which provides the appropriate clocking pulses to transfer the data among the image section, the storage section, and the shift registers. A line counter (80 ) counts the lines of pixel values transferred from the image section. When the count corresponds to one field of a video image, the counter causes gates (96, 98) to stop passing clock pulses to the image and storage sections for transferring pixel values therebetween.

Abstract translation: 当物体沿输送机（A）移动时，位置传感器（B）产生触发信号。 触发信号使得闪光灯（14）将高强度闪光发射到检查区域中。 CCD照相机（C）的透镜（20）在闪光之前和期间将来自检查区域的光聚焦在CCD阵列（22）的图像部分（24）上。 在闪光之后，触发信号延迟电路（16）使得控制电路（D）将来自图像部分的像素值的行从存储部分移位到存储部分到移位寄存器（32）， 并从移位寄存器串行地作为视频信号。 视频信号通道（52）对传送到计算机系统（E）的视频信号进行优化，该计算机系统（E）执行根据待检查产品选择的预选质量控制算法。 控制电路包括脉冲发生器（74），其提供适当的时钟脉冲以在图像部分，存储部分和移位寄存器之间传送数据。 行计数器（80）对从图像部分传送的像素值的行进行计数。 当计数对应于视频图像的一个场时，计数器使门（96,98）停止将时钟脉冲传送到图像和存储部分，以在其间传送像素值。

公开(公告)号：US4725883A

公开(公告)日：1988-02-16

申请号：US886844

申请日：1986-07-18

Applicant: William G. Clark, Jr. ,  Lee W. Burtner ,  Francis X. Gradich

Inventor： William G. Clark, Jr. ,  Lee W. Burtner ,  Francis X. Gradich

IPC: G01N21/88 ,  G01B11/24 ,  G01N21/84 ,  G01N21/93 ,  G01N21/954 ,  G02B23/24 ,  H04N7/18

CPC classification number: G01N21/954 ,  G01B11/24 ,  G01N2021/8887 ,  G01N2201/102

Abstract: An optical inspection system for tubular products utilizes a feeler for engaging the internal surface of the tube to be inspected and a miniature charge coupled device video camera for viewing the interface between the feeler and the tube. An image processing computer responsive to the output of the video camera produces information for rapidly assessing damage or distortion of the tube. The camera is pulled or pushed through the tube while continuously monitoring the optical contrast between the feeler and the tube wall. The camera image of the tube ID is fed to the image processing computer to determine and record changes in ID contour is a function of the axial position of the camera and feeler. These data in turn can be used in tubing life prediction considerations. The data may be analyzed manually if desired.

Abstract translation: 用于管状产品的光学检查系统利用用于接合要检查的管的内表面的探针和用于观察触针和管之间的界面的微型电荷耦合器件摄像机。 响应于摄像机的输出的图像处理计算机产生用于快速评估管的损坏或变形的信息。 在连续监测探测器和管壁之间的光学对比度的同时，将照相机拉过或推过管。 管ID的摄像机图像被馈送到图像处理计算机以确定并记录ID轮廓的变化是摄像机和探测器的轴向位置的函数。 这些数据依次可用于油管寿命预测的考虑。 如果需要，可以手动分析数据。

公开(公告)号：US4688939A

公开(公告)日：1987-08-25

申请号：US813747

申请日：1985-12-27

Applicant: Rajarshi Ray

Inventor： Rajarshi Ray

IPC: G01N21/88 ,  G01B11/24 ,  G01N21/956 ,  H01L21/66 ,  H04N7/18

CPC classification number: G01N21/95684 ,  G01N2021/8887 ,  G01N2021/95646 ,  G01N2201/102

Abstract: Automated inspection of solder bumps (18--18) on a major surface (14) of a chip carrier (10) is accomplished by placing the chip carrier on a platform (22) beneath a ring light (28) which is in registration with a television camera (30). Light from the ring light, which is directed at an angle towards all sides (12--12) of the chip carrier, is only reflected upwardly into the television camera by the solder bumps. The output signal of the television camera, which varies with the intensity of the light reflected from the solder bumps, is processed by a vision system (32) to obtain a one-dimensional plot of the light intensity. The one-dimensional intensity plot is analyzed automatically by the vision system to detect for missing, bridged or excessive solder bumps on the chip carrier.

Abstract translation: 在芯片载体（10）的主表面（14）上的焊料凸块（18-18）的自动检查是通过将芯片载体放置在环形灯（28）下面的平台（22）上来实现的，所述平台（22）与 电视摄像机（30）。 从芯片载体的所有侧面（12-12）以一定角度引导的光仅通过焊料凸块向上反射到电视摄像机中。 电视摄像机的输出信号，其随着从焊料凸块反射的光的强度而变化，由视觉系统（32）处理以获得光强度的一维图。 通过视觉系统自动分析一维强度图，以检测芯片载体上的缺失，桥接或过多的焊料凸块。