Wavelet transform in fringe separation

Krzysztof Pokorski; Krzysztof Patorski

doi:10.1117/12.2176021

5 December 2014 Wavelet transform in fringe separation

Krzysztof Pokorski, Krzysztof Patorski

Proceedings Volume 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 94410Z (2014) https://doi.org/10.1117/12.2176021
Event: XIX Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2014, Jelenia Gora, Poland

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.

Citation Download Citation

Krzysztof Pokorski and Krzysztof Patorski "Wavelet transform in fringe separation", Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 94410Z (5 December 2014); https://doi.org/10.1117/12.2176021

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