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Proceedings Paper

Inverse problem approaches for digital hologram reconstruction
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Paper Abstract

Digital holography (DH) is being increasingly used for its time-resolved three-dimensional (3-D) imaging capabilities. A 3-D volume can be numerically reconstructed from a single 2-D hologram. Applications of DH range from experimental mechanics, biology, and fluid dynamics. Improvement and characterization of the 3-D reconstruction algorithms is a current issue. Over the past decade, numerous algorithms for the analysis of holograms have been proposed. They are mostly based on a common approach to hologram processing: digital reconstruction based on the simulation of hologram diffraction. They suffer from artifacts intrinsic to holography: twin-image contamination of the reconstructed images, image distortions for objects located close to the hologram borders. The analysis of the reconstructed planes is therefore limited by these defects. In contrast to this approach, the inverse problems perspective does not transform the hologram but performs object detection and location by matching a model of the hologram. Information is thus extracted from the hologram in an optimal way, leading to two essential results: an improvement of the axial accuracy and the capability to extend the reconstructed field beyond the physical limit of the sensor size (out-of-field reconstruction). These improvements come at the cost of an increase of the computational load compared to (typically non iterative) classical approaches.

Paper Details

Date Published: 20 May 2011
PDF: 14 pages
Proc. SPIE 8043, Three-Dimensional Imaging, Visualization, and Display 2011, 80430S (20 May 2011); doi: 10.1117/12.885761
Show Author Affiliations
Corinne Fournier, Lab. Hubert Curien, CNRS, Univ. Jean Monnet Saint-Etienne (France)
Telecom Saint-Etienne (France)
Loic Denis, Ctr. de Recherche Astronomique de Lyon, CNRS, Observatoire de Lyon (France)
Univ. Lyon 1 (France)
Univ. de Lyon (France)
Eric Thiebaut, Ctr. de Recherche Astronomique de Lyon, CNRS, Observatoire de Lyon (France)
Univ. Lyon 1 (France)
Univ. de Lyon (France)
Thierry Fournel, Lab. Hubert Curien, CNRS, Univ. Jean Monnet Saint-Etienne (France)
Mozhdeh Seifi, Lab. Hubert Curien, CNRS, Univ. Jean Monnet Saint-Etienne (France)


Published in SPIE Proceedings Vol. 8043:
Three-Dimensional Imaging, Visualization, and Display 2011
Bahram Javidi; Jung-Young Son, Editor(s)

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