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Adaptive monogenic filtering and normalization of ESPI fringe patterns

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Quiroga Mellado, Juan Antonio and Guerrero, J. A. and Marroquín Zaleta, José Luis and Rivera Meraz, M. (2005) Adaptive monogenic filtering and normalization of ESPI fringe patterns. Optics Letters, 30 (22). pp. 3018-3020. ISSN 0146-9592

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Official URL: http://dx.doi.org/10.1364/OL.30.003018


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http://www.opticsinfobase.orgPublisher


Abstract

A technique is presented for filtering and normalizing noisy fringe patterns, which may include closed fringes, so that single-frame demodulation schemes may be successfully applied. It is based on the construction of an adaptive filter as a linear combination of the responses of a set of isotropic bandpass filters. The space-varying coefficients are proportional to the envelope of the response of each filter, which in turn is computed by using the corresponding monogenic image [Felsberg and Sommer, IEEE Trans. Signal Process. 49, 3136 (2001)]. Some examples of demodulation of real Electronic Speckle Pattern Interferometry (ESPI) images patterns are presented.


Item Type:Article
Additional Information:

© 2005 Optical Society of America.
J. L. Marroquín (jlm@fractal.cimat.mx) and M. Rivera were supported in part by grants 46270 and
40722 from the Consejo Nacional de Ciencia y Tecnología, México; J. A. Quiroga was supported by
grant DPI2002-02104 from the Ministerio Español de Ciencia y Tecnología.

Uncontrolled Keywords:Demodulation, Quadrature
Subjects:Sciences > Physics > Optics
ID Code:23054
Deposited On:09 Oct 2013 07:27
Last Modified:07 Feb 2014 10:55

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