Non-destructive testing and imaging

Details Non-destructive testing and imaging Non-destructive testing and imaging

2005-02-25

2008-10-14

Stafira, Michael P. (Department: 2886)

Optics: measuring and testing

Inspection of flaws or impurities

Surface condition

Reexamination Certificate

active

07436504

ABSTRACT:
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.

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