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Optical Engineering

Optical implementation of the filtered backprojection algorithm
Author(s): Morgan Madec; Jean-Baptiste Fasquel; Wilfried Uhring; Pascal Yvon Joffre; Yannick Herve
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Paper Abstract

Filtered backprojection (FBP) is the basic operation of image reconstruction algorithms in tomography. It is widely used but very time-consuming. We propose a new implementation, based on an optoelectronic architecture, providing a speedup of about two orders of magnitude over a classical digital implementation. The realization of the optical core, based on a rotated Dove prism, requires careful attention in order to ensure good image quality. This aspect has been studied in simulation with a suitable model of the architecture, and in practice with an experimental setup. Results are very encouraging.

Paper Details

Date Published: 1 October 2007
PDF: 16 pages
Opt. Eng. 46(10) 108202 doi: 10.1117/1.2786450
Published in: Optical Engineering Volume 46, Issue 10
Show Author Affiliations
Morgan Madec, Institut d'Électronique du Solide et des Systèmes (France)
Jean-Baptiste Fasquel, IRCAD (France)
Wilfried Uhring, Institut d'Électronique du Solide et des Systèmes (France)
Pascal Yvon Joffre, Micromodule (France)
Yannick Herve, Institut d'Électronique du Solide et des Systèmes (France)

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