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Proceedings Paper

Computational reduction of the image sets required in conventional phase shifting methods applied to digital photoelasticity
Author(s): Juan C. Briñez de León; Alejandro Restrepo M.; John W. Branch
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Paper Abstract

Phase shifting techniques are often limited in digital photoelasticity by the quantity of acquisitions they require, and the process to perform them. This work simplifies such process by developing only a part of the acquisitions, and the rest are generated computationally. Our proposal was validated for a six-acquisition method by generating synthetic images from the analytical model of a disk under diametric compression. The results show that although our method uses less acquisitions, it is capable to recover the stress field with similar performance than conventional methods. This proposal could be useful for evaluating dynamic cases because the reduction of the exposure time expended during the acquisition stage.

Paper Details

Date Published: 24 August 2017
PDF: 10 pages
Proc. SPIE 10395, Optics and Photonics for Information Processing XI, 103950K (24 August 2017);
Show Author Affiliations
Juan C. Briñez de León, Univ. Nacional de Colombia Sede Medellín (Colombia)
Alejandro Restrepo M., Univ. Nacional de Colombia Sede Medellín (Colombia)
John W. Branch, Univ. Nacional de Colombia Sede Medellín (Colombia)

Published in SPIE Proceedings Vol. 10395:
Optics and Photonics for Information Processing XI
Khan M. Iftekharuddin; Abdul A. S. Awwal; Mireya García Vázquez; Andrés Márquez; Víctor H. Diaz-Ramirez, Editor(s)

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