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Appl Opt. 2011 Jun 1;50(16):2425-30. doi: 10.1364/AO.50.002425.

Two-dimensional continuous wavelet transform for phase determination of complex interferograms.

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1
Department of Mechanical Engineering, The Catholic University of America, Washington, DC 20064, USA.

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.

PMID:
21629323
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