Method of detecting a defect on an object
    1.
    发明授权
    Method of detecting a defect on an object 有权
    检测物体上的缺陷的方法

    公开(公告)号:US08184899B2

    公开(公告)日:2012-05-22

    申请号:US12383017

    申请日:2009-03-19

    CPC classification number: G06T7/0004 G06T2207/30148

    Abstract: In a method of detecting a defect on an object, a preliminary reference image can be obtained from a plurality of comparison regions defined on the object. The preliminary reference image is divided into reference zones by a similar brightness. Each of the reference zones is provided with substantially the same gray level, respectively, to obtain a reference image. Whether a defect exists in an inspection region in the comparison regions is determined using the reference image. Thus, defects in the inspection regions having different brightnesses can be detected using the properly obtained reference image.

    Abstract translation: 在检测物体上的缺陷的方法中,可以从对象上定义的多个比较区域中获得初步参考图像。 初步参考图像以相似的亮度分为参考区域。 每个参考区分别具有基本上相同的灰度级,以获得参考图像。 使用参考图像确定在比较区域中的检查区域中是否存在缺陷。 因此,可以使用适当地获得的参考图像来检测具有不同亮度的检查区域中的缺陷。

    Method of detecting a defect on an object
    2.
    发明申请
    Method of detecting a defect on an object 有权
    检测物体上的缺陷的方法

    公开(公告)号:US20090238445A1

    公开(公告)日:2009-09-24

    申请号:US12383017

    申请日:2009-03-19

    CPC classification number: G06T7/0004 G06T2207/30148

    Abstract: In a method of detecting a defect on an object, a preliminary reference image can be obtained from a plurality of comparison regions defined on the object. The preliminary reference image is divided into reference zones by a similar brightness. Each of the reference zones is provided with substantially the same gray level, respectively, to obtain a reference image. Whether a defect exists in an inspection region in the comparison regions is determined using the reference image. Thus, defects in the inspection regions having different brightnesses can be detected using the properly obtained reference image.

    Abstract translation: 在检测物体上的缺陷的方法中,可以从对象上定义的多个比较区域中获得初步参考图像。 初步参考图像以相似的亮度分为参考区域。 每个参考区分别具有基本上相同的灰度级,以获得参考图像。 使用参考图像确定在比较区域中的检查区域中是否存在缺陷。 因此,可以使用适当地获得的参考图像来检测具有不同亮度的检查区域中的缺陷。

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