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Proceedings Paper

Continuous wavelet transform analysis and visualization of additive type moire and time-average fringe patterns
Author(s): Krzysztof Pokorski; Krzysztof Patorski
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Paper Abstract

An application of the continuous wavelet transform (CWT) to modulation extraction of additive moir´e fringes and time-average patterns is described. To facilitate the task of demodulating a signal with zero crossing values a two frame approach for the wavelet ridge extraction is proposed. Experimental studies of resonance vibration mode patterns by time-average interferometry provide verification of numerical findings. They agree very well with our previous investigation results obtained using the temporal phase shifting method. No need of performing phase shifting represents significant simplification of the experimental procedure.

Paper Details

Date Published: 15 December 2010
PDF: 10 pages
Proc. SPIE 7746, 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 77460G (15 December 2010); doi: 10.1117/12.881543
Show Author Affiliations
Krzysztof Pokorski, Warsaw Univ. of Technology (Poland)
Krzysztof Patorski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 7746:
17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jarmila Müllerová; Dagmar Senderáková; Stanislav Jurečka, Editor(s)

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