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Non-destructive testing and imaging

  • US 20050264796A1
  • Filed: 02/25/2005
  • Published: 12/01/2005
  • Est. Priority Date: 09/10/2003
  • Status: Active Grant
First Claim
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1. A method of non-destructive testing comprising:

  • 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;

    capturing the reflected coherent light over the range of test levels as a plurality of digital images of the object;

    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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