Locating extremal curves of fringe pattern based on the wavelet transform method

Alexander Belyakov

doi:10.1117/12.674991

9 June 2006 Locating extremal curves of fringe pattern based on the wavelet transform method

Alexander Belyakov

Proceedings Volume 6162, International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies; 61620E (2006) https://doi.org/10.1117/12.674991
Event: International Conference on Lasers, Applications, and Technologies 2005, 2005, St. Petersburg, Russian Federation

Abstract

The digital signal-processing method of fringe pattern extremal curves generation is presented. The method is based on 3D wavelet map computation. The correspondence between features of fringe pattern and 3D wavelet map of the same fringe pattern is described. For analysis, the Symmetrical Morlet wavelet is used. Wavelet map ridge detection algorithm is proposed. Fringe extremal curves obtained are used for fringe phase recovery that leads to possibility of 3D relief reconstruction.

Citation Download Citation

Alexander Belyakov "Locating extremal curves of fringe pattern based on the wavelet transform method", Proc. SPIE 6162, International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies, 61620E (9 June 2006); https://doi.org/10.1117/12.674991

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KEYWORDS

Wavelets

Fringe analysis

Continuous wavelet transforms

Wavelet transforms

Reconstruction algorithms

Signal analyzers

Spatial resolution

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