公开(公告)号：US20080147347A1

公开(公告)日：2008-06-19

申请号：US11998787

申请日：2007-11-30

申请人： Eugene L. Shaw ,  Forrest S. Wright ,  David D Malkan

发明人： Eugene L. Shaw ,  Forrest S. Wright ,  David D Malkan

IPC分类号： G06F19/00

CPC分类号： G01N21/954 ,  G01B11/162 ,  G01M17/027 ,  G01N21/8851 ,  G01N2021/8887 ,  G01N2021/9548

摘要： A method of non-destructive testing includes non-destructively testing an object over a range of test levels, directing coherent light onto the object, directly receiving the coherent light substantially as reflected straight from the object, and capturing the reflected coherent light over the range of test levels as a plurality of digital images of the object. The method also includes calculating differences between pixel values of a plurality of pairs of digital images of the plurality of digital images, and adding the pixel value differences of the plurality of pairs of digital images to yield at least one cumulative differential image.

摘要翻译： 非破坏性测试的方法包括在一定范围的测试级别上对物体进行非破坏性测试，将相干光引导到物体上，直接从物体直接接收如反射的相干光，并在该范围内捕获反射的相干光 的测试级别作为对象的多个数字图像。 该方法还包括计算多个数字图像的多对数字图像的像素值之间的差异，并且相加多个数字图像对的像素值差异以产生至少一个累积差分图像。