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Proceedings Paper

Wavelet transform in fringe separation
Author(s): Krzysztof Pokorski; Krzysztof Patorski
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Paper Abstract

A new technique for processing complex fringe patterns containing multiple fringe sets is presented. It can be used either to filter out parasitic fringes or to extract two separate, superimposed fringe families with information encoded in their phase. The method is based on two dimensional continuous wavelet transform. A new ridge extraction algorithm utilizing wavelet scale and angle coordinate maps extrapolation procedure is proposed. This procedure allows to analyze fringe patterns with locally overlapping spectra, is fully automatic and does not require user involvement. Method validity, accuracy and robustness are confirmed using numerical simulations.

Paper Details

Date Published: 5 December 2014
PDF: 6 pages
Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 94410Z (5 December 2014); doi: 10.1117/12.2176021
Show Author Affiliations
Krzysztof Pokorski, Warsaw Univ. of Technology (Poland)
Krzysztof Patorski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9441:
19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Waclaw Urbanczyk, Editor(s)

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