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1. Buendía, M.; Cibirían, R.; Salvador, C.; Roldán, J.M.; Iñesta, J.M.
   "Automatic analysis of speckle interferometry fringes"
   Applied Optics, vol. 36, pp. 2395-2400 (1997)
   : bibtex
   Abstract:

   Speckle interferometry is an useful technique for measuring small point displacements in the surface of an object when it is subjected to a deformation stress. In this paper, an automatic system for assessing these experiences is described, consisting of a computer controlled XY plane positioner that provides both X and Y axis translation of the interferometric plate, a CCD video camera for capturing interferometric images and the software for subsequent computer analysis. The fringe recognition algorithm determines the fringe direction and the interfringe through a Fourier series fitting procedure, allowing the calculation of the magnitude and direction of the displacement of the analyzed object point.

@article {
 author = "Buendía, M.; Cibirían, R.; Salvador, C.; Roldán, J.M.; Iñesta, J.M.",
 title  = "Automatic analysis of speckle interferometry fringes",
 journal = "Applied Optics",
 pages = "2395-2400",
 volume = "36",
 year = "1997"
}