Fringe pattern compensation by synthesis of phase-shifted interferograms

Zoltan Fuezessy; Janos Kornis; Attila Nemeth

doi:10.1117/12.445565

23 October 2001 Fringe pattern compensation by synthesis of phase-shifted interferograms

Zoltan Fuezessy, Janos Kornis, Attila Nemeth

Proceedings Volume 4398, Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design; (2001) https://doi.org/10.1117/12.445565
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

Local material insufficiencies on or near the object surface lead to locally high dense fringes at the displacement and shape measurement by holographic interferometry and TV- holography. In such case cutting out fringes results in relatively easy interpretation of the remaining interference pattern and identification of the defect. Fringe compensation techniques are widely used for eliminating the background fringes. The paper proposes a compensating technique based on phase-shifted interferograms. Its principles and applications are presented.

Citation Download Citation

Zoltan Fuezessy, Janos Kornis, and Attila Nemeth "Fringe pattern compensation by synthesis of phase-shifted interferograms", Proc. SPIE 4398, Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design, (23 October 2001); https://doi.org/10.1117/12.445565

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