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Proceedings Paper

A new algorithm for digital holograms denoising based on compressed sensing
Author(s): P. Memmolo; I. Esnaola; A. Finizio; M. Paturzo; P. Ferraro; A. M. Tulino
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Paper Abstract

We propose a new denoising algorithm in off-axis Digital Holography (DH) based on l1 norm minimization. The aim of our work is to assess a general denoising scheme of digital holograms, i.e. we do not explore prior knowledge of the statistics of the digital holograms. For this purpose, we consider different experimental conditions such as a digital holograms recorded in microscope configuration and lensless configuration. We use the inherent sparsity of the numerical reconstruction of digital holograms in order to optimize the in-focus digital reconstructions. For this reason, we call the proposed algorithm SPADEDH (SPArsity DEnoising of Digital Holograms). We perform also a display test, by using a Spatial Light Modulator (SLM) as a projection system, for the digital holograms recorded in lensless configuration. In both numerical reconstruction and display test, the improvements of the SPADEDH algorithm are computed.

Paper Details

Date Published: 4 May 2012
PDF: 7 pages
Proc. SPIE 8429, Optical Modelling and Design II, 84291G (4 May 2012); doi: 10.1117/12.922923
Show Author Affiliations
P. Memmolo, CNR, Istituto Nazionale di Ottica (Italy)
Istituto Italiano di Tecnologia (Italy)
I. Esnaola, Alcatel-Lucent Bell Labs (United States)
A. Finizio, CNR, Istituto Nazionale di Ottica (Italy)
M. Paturzo, CNR, Istituto Nazionale di Ottica (Italy)
P. Ferraro, CNR, Istituto Nazionale di Ottica (Italy)
A. M. Tulino, Univ. degli Studi di Napoli Federico II (Italy)
Alcatel-Lucent Bell Labs (United States)

Published in SPIE Proceedings Vol. 8429:
Optical Modelling and Design II
Frank Wyrowski; John T. Sheridan; Jani Tervo; Youri Meuret, Editor(s)

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