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Optical Engineering

Computer moire deflectometry using the Talbot effect
Author(s): Ionel Valentin Vlad; Dragos Popa; Ion G. Apostol
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Paper Abstract

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.

Paper Details

Date Published: 1 March 1991
PDF: 7 pages
Opt. Eng. 30(3) doi: 10.1117/12.55795
Published in: Optical Engineering Volume 30, Issue 3
Show Author Affiliations
Ionel Valentin Vlad
Dragos Popa, Polytechnic Institute of Bucharest (Romania)
Ion G. Apostol


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