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.
© 2011 Optical Society of America
Original Manuscript: December 17, 2010
Revised Manuscript: February 9, 2011
Manuscript Accepted: February 26, 2011
Published: May 25, 2011
Jun Ma, Zhaoyang Wang, Bing Pan, Thang Hoang, Minh Vo, and Long Luu, "Two-dimensional continuous wavelet transform for phase determination of complex interferograms," Appl. Opt. 50, 2425-2430 (2011)