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Sinusoidal least-squares fitting for temporal fringe pattern analysis

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Quiroga Mellado, Juan Antonio and Villa, J. and Gómez Pedrero, José Antonio (2002) Sinusoidal least-squares fitting for temporal fringe pattern analysis. Journal of Modern Optics, 49 (13). pp. 2257-2266. ISSN 0950-0340

Official URL: http://dx.doi.org/10.1080/09500340210134701


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Abstract

A sinusoidal least-squares fitting algorithm (SLSF) is applied to temporal evaluation of fringe patterns. The least-squares fitting of a sine function directly with the irradiance fluctuations due to a linear sensitivity variation of the optical set-up avoids the problems inherent to Fourier analysis. Experiments show that the proposed method has a better noise immunity than the temporal Fourier method. An application of this technique to Deflectometry is also presented.


Item Type:Article
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©2002 Taylor and Francis Ltd.

Uncontrolled Keywords:Speckle Interferometry, Shape Measurement, Phase Evaluation, Objects
Subjects:Sciences > Physics > Optics
ID Code:23123
Deposited On:14 Oct 2013 08:49
Last Modified:14 Oct 2013 08:49

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