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Direct demodulation of closed-fringe interferograms based on active contours

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Quiroga Mellado, Juan Antonio y Vargas, Javier y Belenguer Dávila, Tomás (2010) Direct demodulation of closed-fringe interferograms based on active contours. Optics Letters, 35 (21). pp. 3550-3552. ISSN 0146-9592

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URL Oficial: http://dx.doi.org/10.1364/OL.35.003550


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http://www.opticsinfobase.orgEditorial


Resumen

We demonstrate a method to directly demodulate closed-fringe interferograms using a kind of active contour called a snake. This method can be used to demodulate a single closed-fringe interferogram when its background illumination and/or contrast terms have a spatial frequency similar to the spatial frequency of the equivalent normalized interferogram. Among other cases, this problematic usually appears in interferometry when spurious reflection appears in the interferogram. In these situations, typical Fourier-based methods are of no help. We show a set of simulations and experimental results that prove the effectiveness of the proposed method.


Tipo de documento:Artículo
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© 2010 Optical Society of America

Palabras clave:Spurious Reflection, Phase, Interferometry, Quadrature
Materias:Ciencias > Física > Optica
Código ID:22767
Depositado:13 Sep 2013 07:35
Última Modificación:07 Feb 2014 10:51

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