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Optical Engineering

Advanced continuous wavelet transform algorithm for digital interferogram analysis and processing
Author(s): Zhaoyang Wang; Huanfeng Ma
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Paper Abstract

An advanced continuous wavelet transform algorithm for digital interferogram analysis and processing is proposed. The algorithm is an extension of the traditional wavelet transform; the mother wavelet and normalization parameter are selected based on the characteristics of optical interferograms. To reduce the processing time, a fast Fourier transform scheme is employed to implement the wavelet transform calculation. The algorithm is simple and is a robust tool for interferogram filtering and for whole-field fringe and phase information detection. The concept is verified by computer simulation and actual experimental interferogram analysis.

Paper Details

Date Published: 1 April 2006
PDF: 5 pages
Opt. Eng. 45(4) 045601 doi: 10.1117/1.2188399
Published in: Optical Engineering Volume 45, Issue 4
Show Author Affiliations
Zhaoyang Wang, Univ. of Maryland/College Park (United States)
Huanfeng Ma, Univ. of Maryland/College Park (United States)


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