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Optical Engineering

Improved algorithm for the analysis of holographic interferograms
Author(s): Juan Antonio Aparicio-Calzada; Jose Luis Molpeceres-Criado; Angel M. de Frutos Baraja; Carlos de Castro; Santiago Caceres; Fernando A Frechoso
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Paper Abstract

We propose a new technique to calculate the phase distribution over a fringe pattern. A digital processing system is used to digitize and analyze several holographic interferograms. Starting from a well-known tracking algorithm, which has been optimized, interferometric fringes are codified and then, by taking advantage of the intensity distribution over the interferogram, the phase associated with every pixel is calculated. We conclude that this technique can be applied to all kinds of fringe patterns obtained by the different techniques of holographic interferometry.

Paper Details

Date Published: 1 May 1993
PDF: 7 pages
Opt. Eng. 32(5) doi: 10.1117/12.132472
Published in: Optical Engineering Volume 32, Issue 5
Show Author Affiliations
Juan Antonio Aparicio-Calzada, Univ. de Valladolid (Spain)
Jose Luis Molpeceres-Criado, Univ. de Valladolid (Spain)
Angel M. de Frutos Baraja, Univ. de Valladolid (Spain)
Carlos de Castro, Univ. de Valladolid (Spain)
Santiago Caceres, Univ. de Valladolid (Spain)
Fernando A Frechoso, Univ. de Valladolid (Spain)

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