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Optical Engineering

Interferogram smoothing and skelotonizing using Bessel functions of the first kind
Author(s): Dayana H. Penalver; David L. Romero-Antequera; Fermin-Salomon Granados-Agustín
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Paper Abstract

A new approach for smoothing and fringe normalization is proposed, using Bessel functions of the first kind to fit the intensity distribution, with application for skeletonizing and cancel background illumination in an interferogram. With this approach, high-frequency noise is immunized, and the contrast is enhanced by the computation of fitting coefficients by means of least squares. The new smoothing process works very well also with asymmetric interferograms. Its main advantages are the simplicity of implementation and almost automatic fringe skeletonizing and overcoming the problem of the nonuniformity illumination.

Paper Details

Date Published: 11 April 2012
PDF: 8 pages
Opt. Eng. 51(4) 045601 doi: 10.1117/1.OE.51.4.045601
Published in: Optical Engineering Volume 51, Issue 4
Show Author Affiliations
Dayana H. Penalver, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
David L. Romero-Antequera, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Fermin-Salomon Granados-Agustín, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)


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