publication . Article . 2000

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

JUAN ANTONIO QUIROGA MELLADO;
Open Access
  • Published: 10 Jun 2000 Journal: Applied Optics, volume 39, page 2,931 (issn: 0003-6935, eissn: 1539-4522, Copyright policy)
  • Publisher: The Optical Society
  • Country: Spain
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 inf...
Subjects
free text keywords: Atomic and Molecular Physics, and Optics, Polarization (waves), Isotropy, Physics, Optics, business.industry, business, Inverse problem, Regularization algorithm, Modulation, Phase (waves), Optica
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publication . Article . 2000

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

JUAN ANTONIO QUIROGA MELLADO;