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

Loic Denis; Corinne Fournier; Thierry Fournel; Christophe Ducottet

doi:10.1117/12.617405

17 September 2005 Twin-image noise reduction by phase retrieval in in-line digital holography

Loic Denis, Corinne Fournier, Thierry Fournel, Christophe Ducottet

Proceedings Volume 5914, Wavelets XI; 59140J (2005) https://doi.org/10.1117/12.617405
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

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 (17 September 2005); https://doi.org/10.1117/12.617405

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