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Proceedings Paper

Managing Some Of The Problems Of Fourier Fringe Analysis
Author(s): D. R. Burton; M. J. Lalor
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Paper Abstract

Recent work has shown the importance of the fast Fourier transform (FFT) in the automatic analysis of fringe patterns. Three problem areas are encountered when the FFT is used as an analysis tool in this fashion, namely, aliasing, the picket fence effect and leakage. The authors consider leakage to be by far the biggest problem in this application. The paper defines what causes leakage and suggests how leakage may be controlled using data weighting functions. Comparative results obtained using a variety of functions are presented.

Paper Details

Date Published: 20 November 1989
PDF: 12 pages
Proc. SPIE 1163, Fringe Pattern Analysis, (20 November 1989); doi: 10.1117/12.962790
Show Author Affiliations
D. R. Burton, Coherent and Electro-Optics Research Group (United Kingdom)
M. J. Lalor, Coherent and Electro-Optics Research Group (United Kingdom)

Published in SPIE Proceedings Vol. 1163:
Fringe Pattern Analysis
Graeme T. Reid, Editor(s)

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