Optical implementation of the filtered backprojection algorithm

Morgan Madec; Jean-Baptiste Fasquel; Wilfried Uhring; Pascal Yvon Joffre; Yannick Herve

doi:10.1117/1.2786450

1 October 2007 Optical implementation of the filtered backprojection algorithm

Morgan Madec, Jean-Baptiste Fasquel, Wilfried Uhring, Pascal Yvon Joffre, Yannick Herve

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Optical Engineering, Vol. 46, Issue 10, 108202 (October 2007). https://doi.org/10.1117/1.2786450

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.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Morgan Madec, Jean-Baptiste Fasquel, Wilfried Uhring, Pascal Yvon Joffre, and Yannick Herve "Optical implementation of the filtered backprojection algorithm," Optical Engineering 46(10), 108202 (1 October 2007). https://doi.org/10.1117/1.2786450

Published: 1 October 2007

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