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Adaptive asynchronous algorithm for fringe pattern demodulation



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Quiroga Mellado, Juan Antonio and Gómez Pedrero, José Antonio and Servín Guirado, Manuel (2008) Adaptive asynchronous algorithm for fringe pattern demodulation. Applied Optics, 47 (21). pp. 3954-3961. ISSN 0003-6935


Official URL: http://dx.doi.org/10.1364/AO.47.003954



We present a spatial adaptive asynchronous algorithm for fringe pattern demodulation. The proposed algorithm is based on the standard five-step asynchronous method with the one modification that we select the best sample spacing for each point of the fringe pattern. As we show, the frequency response of any asynchronous method depends on the sample spacing. This interesting behavior is used to select the best sample spacing as the one that gives the biggest response for each location. The overall result is a spatial demodulation algorithm with an improved frequency response compared to the existing ones. We show the feasibility of the proposed method with theoretical analysis as well as experimental results.

Item Type:Article
Additional Information:

© 2008 Optical Society of America.
We acknowledge the financial support of this work by the Ministerio de Educacion y Ciencia, project DP12005-03891.

Uncontrolled Keywords:Spatial Carrier, Transform
Subjects:Sciences > Physics > Optics
ID Code:22846
Deposited On:30 Sep 2013 07:59
Last Modified:07 Feb 2014 10:52

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