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Proceedings Paper

Fourier-Transform Evaluation Of Interference Patterns: The Role Of Filtering In The Spatial Frequency Domain
Author(s): Thomas M. Kreis; Werner P.O. Juptner
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Paper Abstract

The Fourier-transform method pointwisely determines the interference phase distribution out of a single digitally recorded and stored interference pattern. By using suitable filter parameters in the spatial frequency domain, speckle noise and known as well as unknown background variations can be suppressed. The paper presents a description of the Fourier-transform method, a discussion of the effects of filter parameters like orientation and cutoff-frequencies, and experimental results.

Paper Details

Date Published: 25 April 1990
PDF: 10 pages
Proc. SPIE 1162, Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series, (25 April 1990); doi: 10.1117/12.962739
Show Author Affiliations
Thomas M. Kreis, Bremer Institut fur angewandte Strahltechnik - BIAS (Germany)
Werner P.O. Juptner, Bremer Institut fur angewandte Strahltechnik- BIAS (Germany)


Published in SPIE Proceedings Vol. 1162:
Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series
Ryszard J. Pryputniewicz, Editor(s)

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