25 April 2008 Fringe pattern analysis using a one-dimensional modified Morlet continuous wavelet transform
Author Affiliations +
Abstract
This paper proposes the use of a modified Morlet wavelet in order to demodulate fringe patterns in conjunction with the one-dimensional continuous wavelet transform (1D-CWT). Our investigations demonstrate that the modified Morlet wavelet produces better results compared to the conventional Morlet wavelet when used in fringe pattern analysis. This novel technique offers superior performance in analysing fringe patterns from objects that exhibit large height variations. This new technique has been used in conjunction with the direct maximum ridge extraction algorithm and an improvement in performance is observed. The algorithm has been tested using both computer-generated and real fringe patterns; and was found to be suitable for fringe pattern demodulation and robust in operation.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Abdulbasit Z. Abid, Munther A. Gdeisat, David R. Burton, Michael J. Lalor, Hussein S. Abdul-Rahman, Francis Lilley, "Fringe pattern analysis using a one-dimensional modified Morlet continuous wavelet transform", Proc. SPIE 7000, Optical and Digital Image Processing, 70000Q (25 April 2008); doi: 10.1117/12.781677; https://doi.org/10.1117/12.781677
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT

Existence of cross terms in the wavelet transform
Proceedings of SPIE (December 01 1991)
Fringe pattern information retrieval using wavelets
Proceedings of SPIE (September 17 2005)
Gabor wavelet analysis and the fractional Hilbert transform
Proceedings of SPIE (September 03 2009)

Back to Top