KEYWORDS: Inspection, 3D projection, Fringe analysis, Image acquisition, 3D metrology, 3D acquisition, 3D image processing, Amplitude modulation, Discontinuities
A 2D fringe pattern is designed and employed to perform 3D profile measurements by means of coaxial fringe projections and image acquisitions. To enhance the reliability and systematic accuracy, a signal processing algorithm is proposed as well. Accuracy of the retrieved 3D profile can be achieved in the order of sub-millimeters.
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