1 March 1991 Computer moire deflectometry using the Talbot effect
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Computer moire deflectometry (CMD) using one grating, a TV camera, and a computer image processor (CIP) is developed. The TV camera is located in a Talbot plane, allowing the recording of a (disturbed) image of the grating with maximum contrast and without any other optical component. CIP is used for obtaining, processing, and automated interpretation of the fringes. Double-exposure, real-time, time-average, and phase-measuring methods of CMD for transparent and reflective objects are demonstrated.
Ionel Valentin Vlad, Ionel Valentin Vlad, Dragos Popa, Dragos Popa, Ion G. Apostol, Ion G. Apostol, "Computer moire deflectometry using the Talbot effect," Optical Engineering 30(3), (1 March 1991). https://doi.org/10.1117/12.55795 . Submission:

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