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Proceedings Paper

Application of matched digital filters to noisy fringe-patterns from complex wavefronts
Author(s): Jesus Caum; J. Arasa; Santiago Royo; M. Ares
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Paper Abstract

A new technique for processing of noisy fringe patterns with complex fringe shapes is presented . The technique is based in exploiting the capabilities of digital filters, treating the fringe-pattern as a signal to be processed. The main parameters required for designing the filter, and the application of the design methodology to a particular experimental fringe pattern are described in detail. To conclude, the designed filter is applied to experimental noisy fringe-patterns both from complex and simple wavefronts, which are processed without a single change in the parameters of the algorithms. The procedure is completely general, with a very small computational cost, and may be extended to any noisy fringe-pattern to be processed given the fringes are still visible.

Paper Details

Date Published: 13 June 2005
PDF: 11 pages
Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); doi: 10.1117/12.612835
Show Author Affiliations
Jesus Caum, Technical Univ. of Catalunya (Spain)
J. Arasa, Technical Univ. of Catalunya (Spain)
Santiago Royo, Technical Univ. of Catalunya (Spain)
M. Ares, Technical Univ. of Catalunya (Spain)

Published in SPIE Proceedings Vol. 5856:
Optical Measurement Systems for Industrial Inspection IV
Wolfgang Osten; Christophe Gorecki; Erik L. Novak, Editor(s)

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