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Proceedings Article

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

[+] Author Affiliations
Loic Denis, Corinne Fournier, Thierry Fournel, Christophe Ducottet

Lab. Traitement du Signal et Instrumentation, CNRS (France)

Proc. SPIE 5914, Wavelets XI, 59140J (September 17, 2005); doi:10.1117/12.617405
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From Conference Volume 5914

  • Wavelets XI
  • Manos Papadakis; Andrew F. Laine; Michael A. Unser
  • San Diego, California, USA | July 31, 2005


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.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Loic Denis ; Corinne Fournier ; Thierry Fournel and Christophe Ducottet
"Twin-image noise reduction by phase retrieval in in-line digital holography", Proc. SPIE 5914, Wavelets XI, 59140J (September 17, 2005); doi:10.1117/12.617405; http://dx.doi.org/10.1117/12.617405

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