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    Video web inspection system employing filtering and thresholding to determine surface anomalies
    1.
    发明授权
    Video web inspection system employing filtering and thresholding to determine surface anomalies 失效
    视频网络检查系统采用过滤和阈值来确定表面异常

    公开(公告)号：US5301129A

    公开(公告)日：1994-04-05

    申请号：US875672

    申请日：1992-04-29

    申请人： Stephen V. McKaughan ,  Gary F. Nevers ,  Joseph W. Landry ,  John P. Fallon ,  Paul R. Adomaitis

    发明人： Stephen V. McKaughan ,  Gary F. Nevers ,  Joseph W. Landry ,  John P. Fallon ,  Paul R. Adomaitis

    IPC分类号： G01N21/89 ,  G01N21/93 ,  G06T7/00 ,  G06F11/00

    CPC分类号： G06T7/001 ,  G01N21/89 ,  G01N21/93 ,  G01N2021/936 ,  G06T2207/10016 ,  G06T2207/30124

    摘要： Method and apparatus for inspecting the surface of a moving web of homogeneous material for anomalies, the apparatus including a light source for illuminating the web surface and a light sensitive detector for receiving data from the web surface. The data is representative of the light reflected from the surface, as the light is affected by surface anomalies and background information. Computational means are provided for receiving output data from the detector in response to the data the detector receives from the web surface, and for processing the output data in a manner that determines the presence of surface anomalies. The computation means includes a plurality of filters for transforming the surface data in a manner that effects substantial elimination of the background information, and means for establishing threshold levels for background information. In addition, automatic means is provided for modifying the threshold levels in response to changes in the reflectance, frequency, or contrast of background information received by the detector and forwarded to the computation means.

    摘要翻译： 用于检查用于异常的均质材料的移动幅材的表面的方法和装置，该装置包括用于照射幅材表面的光源和用于从幅材表面接收数据的光敏检测器。 数据表示从表面反射的光，因为光受到表面异常和背景信息的影响。 提供计算装置，用于响应于检测器从卷筒纸表面接收到的数据，并且以确定表面异常存在的方式处理输出数据，从检测器接收输出数据。 计算装置包括多个滤波器，用于以实质上消除背景信息的方式变换表面数据，以及用于建立背景信息的阈值水平的装置。 此外，提供自动装置，用于响应于由检测器接收并转发到计算装置的背景信息的反射率，频率或对比度的变化来修改阈值电平。

    Video camera with interchangable optical sensors
    6.
    发明申请
    Video camera with interchangable optical sensors 审中-公开
    具有可互换光学传感器的摄像机

    公开(公告)号：US20090278929A1

    公开(公告)日：2009-11-12

    申请号：US12151381

    申请日：2008-05-06

    申请人： Nicholas J. Lagadinos ,  Cheryl A. Casper ,  Stephen V. McKaughan

    发明人： Nicholas J. Lagadinos ,  Cheryl A. Casper ,  Stephen V. McKaughan

    IPC分类号： H04N7/18 ,  H04N5/225

    CPC分类号： H04N5/2253 ,  H04N5/33

    摘要： A video camera 100 for remote operation or surveillance has a lens system 1 supported on a fixed base plate 26 and a pair of image sensors 14, 15, 204 mounted onto a movable plate 13. A pair of balls slides 11, 12 are attached to the fixed base plate 26 and the movable plate 13 to provide linear movement of the movable plate along a linear motion axis 50. An actuator 5 is disposed between the fixed base plate 26 and the movable plate 13 to move the movable plate 13 and each of the image sensors 14, 15, 204 along the linear motion axis 50 to dispose either the first image sensor 14 or the second image sensor 15 in and imagining position where the lens system 1 forms a scene image onto its active surface. In a preferred embodiment, the first image sensor 14 is an Electron Multiplication CCD array suitable for night time imaging and the second sensor 15 is a color CCD array suitable for day light imaging. The invention allows for multiple resolutions, multiple fields of view, multiple spectral bands or all three capabilities using a single lens system 1 without the efficiency losses in photon gathering and other shortcomings of other techniques commonly in use today.

    摘要翻译： 用于远程操作或监视的摄像机100具有支撑在固定基板26上的透镜系统1和安装在可移动板13上的一对图像传感器14,15,204。一对滚珠滑块11,12附接到 固定基板26和可移动板13，以沿着直线运动轴线50提供可动板的线性运动。致动器5设置在固定基板26和可动板13之间，以使可动板13和 沿着直线运动轴线50的图像传感器14,15,204将第一图像传感器14或第二图像传感器15配置在其中，并且将透镜系统1形成场景图像的位置设想到其有效表面上。 在优选实施例中，第一图像传感器14是适用于夜间成像的电子倍增CCD阵列，第二传感器15是适用于日光成像的彩色CCD阵列。 本发明允许使用单个透镜系统1的多个分辨率，多个视场，多个光谱带或所有三个能力，而光子聚集中的效率损失和当今通常使用的其他技术的其它缺点。