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Proceedings Paper

Twin-image noise reduction by phase retrieval in in-line digital holography
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Paper Abstract

In-line digital holography conciles the applicative interest of a simple optical set-up with the speed, low cost and potential of digital reconstruction. We address the twin-image problem that arises in holography due to the lack of phase information in intensity measurements. This problem is of great importance in in-line holography where spatial elimination of the twin-image cannot be carried out as in off-axis holography. Applications in digital holography of particle fields greatly depend on its suppression to reach greater particle concentrations, keeping a sufficient signal to noise ratio in reconstructed images. We describe in this paper methods to improve numerically the reconstructed images by twin-image reduction.

Paper Details

Date Published: 17 September 2005
PDF: 14 pages
Proc. SPIE 5914, Wavelets XI, 59140J (17 September 2005); doi: 10.1117/12.617405
Show Author Affiliations
Loic Denis, Lab. Traitement du Signal et Instrumentation, CNRS (France)
Corinne Fournier, Lab. Traitement du Signal et Instrumentation, CNRS (France)
Thierry Fournel, Lab. Traitement du Signal et Instrumentation, CNRS (France)
Christophe Ducottet, Lab. Traitement du Signal et Instrumentation, CNRS (France)

Published in SPIE Proceedings Vol. 5914:
Wavelets XI
Manos Papadakis; Andrew F. Laine; Michael A. Unser, Editor(s)

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