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Proceedings Paper

Comparative study of fringes generation in two-spacing phase-shifting profilometry
Author(s): Jana Harizanova; Angel Kolev
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Paper Abstract

A two-spacing phase-shifting techniques for three-dimensional shape measurement based on digital fringe projection is presented. Combination of phase-shifting method with computer generated fringe patterns with a sinusoidal intensity profile allows precise measurement in real time operating mode. The two-spacing technique allows absolute coordinate estimation of the investigated specimen. The theoretical background, experimental results as well as comparison with traditional laser phase-shifting interferometry are discussed. The obtained outcomes successfully display the applicability of this technique for surface profile measurement. The proposed technique is especially useful for remote, non-destructive in-situ inspection of real objects.

Paper Details

Date Published: 9 June 2006
PDF: 5 pages
Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 625223 (9 June 2006); doi: 10.1117/12.677288
Show Author Affiliations
Jana Harizanova, Central Lab. of Optical Storage and Processing of Information (Bulgaria)
Angel Kolev, Central Lab. of Optical Storage and Processing of Information (Bulgaria)


Published in SPIE Proceedings Vol. 6252:
Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information
Yury Denisyuk; Ventseslav Sainov; Elena Stoykova, Editor(s)

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