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Separation of isoclinics and isochromatics from photoelastic data with a regularized phase-tracking technique

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Quiroga Mellado, Juan Antonio and González Cano, Agustín (2000) Separation of isoclinics and isochromatics from photoelastic data with a regularized phase-tracking technique. Applied Optics, 39 (17). pp. 2931-2940. ISSN 0003-6935

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Official URL: http://dx.doi.org/10.1364/AO.39.002931


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Abstract

We present the application of a regularization algorithm to the processing of photoelastic fringe patterns. The method used is a modified regularized phase-tracking (RPT) algorithm applied to phase-shifted images. In particular, we present an algorithm for isoclinic-isochromatic separation that uses only five images. In the case of isoclinics the method can deal with problems associated with modulation of isochromatics and with isotropic points by means of a modified cost functional. With respect to the isochromatics the problems associated with regions of high fringe density are solved in a robust way by the unmodified RPT algorithm by use of the modulation information. The performance of the method is discussed, and experimental results are presented.


Item Type:Article
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© 2000 Optical Society of America.
During realization of this study J. A. Quiroga was supported in part by a post-doctoral grant from the Universidad Complutense de Madrid and by the Becas Internacionales Flores-Valles program, Spain. We acknowledge the support of the Centro de Investigaciones en Óptica (CIO), León, México.

Uncontrolled Keywords:Adaptive Quadrature Filters, Fringe-Pattern Images
Subjects:Sciences > Physics > Optics
ID Code:23209
Deposited On:19 Oct 2013 16:03
Last Modified:07 Feb 2014 10:58

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