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

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