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Regularized phase tracking technique for demodulation of isochromatics from a single tricolour image

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Quiroga Mellado, Juan Antonio and Servín Guirado, Manuel and Marroquín Zaleta, José Luis (2002) Regularized phase tracking technique for demodulation of isochromatics from a single tricolour image. Measurement Science and Technology, 13 (1). pp. 132-140. ISSN 0957-0233

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Official URL: http://dx.doi.org/10.1088/0957-0233/13/1/317


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Abstract

In this work we propose a robust fringe demodulation technique applied to the analysis of tricolour isochromatic fringe patterns produced in photoelasticity. The method used is a regularized phase tracking (RPT) algorithm, which takes into account the different information contained in the three bands of the colour image obtained with an RGB-CCD camera. Automatic determination of the zero-order isochromatic and the area of interest, the use of a discrete fluorescent illumination and the use of the RPT configures a robust method for automatic demodulation of isochromatic fringe patterns. The performance of the method is discussed and experimental results are presented.


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© 2002 IOP Publishing Ltd.
We wish to thank the European Union, project INDUCE, BRPR-CT97-0805, for financial support of this work. MS and JLM were supported in part by grants from Conacyt, México.

Uncontrolled Keywords:Photoelasticity
Subjects:Sciences > Physics > Optics
ID Code:23130
Deposited On:14 Oct 2013 10:53
Last Modified:07 Feb 2014 10:57

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