Two-dimensional continuous wavelet transform for phase determination of complex interferograms
- 25 May 2011
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 50 (16) , 2425-2430
Abstract
A robust two-dimensional continuous wavelet transform (2D-CWT) technique for interferogram analysis is presented. To cope with the phase determination ambiguity issue encountered in the analysis of complex interferograms, a phase determination rule is proposed according to the phase distribution continuity, and a frequency-guided scheme is employed to obtain the correct phase distribution following a conventional 2D-CWT analysis. The theories are given in details, and the validity of the proposed technique is verified by computer simulation and real experiments.Keywords
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