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2 March 2001 Noise-immune interference fringe analysis by modification of local intensity histogram and 2D Fourier transform method
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Abstract
A noise-immune method of phase retrieval of single moire interferometric fringe pattern is presented and discussed. The method is shown to provide accurate recovering of the phase information by combined method based on modification of local histogram of the fringe intensity and two dimensional Fourier transform of enhanced moire fringe pattern. The principle of the method is described and the experimental results of moire interferometric measurements with submicron sensitivity of the in-plane displacement fields of thick carbon fiber/PEEK composite laminates are presented as example of application of the technique.
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Sergio De Nicola, Pietro Ferraro, Igor P. Gurov, R. Koviazin, and Mikhail V. Volkov "Noise-immune interference fringe analysis by modification of local intensity histogram and 2D Fourier transform method", Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); https://doi.org/10.1117/12.417750
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