Optical implementation of the filtered backprojection algorithm

被引：2

作者：

Madec, Morgan ^{[1
,2
]}

Fasquel, Jean-Baptiste ^{[3
]}

Uhring, Wilfried ^{[1
]}

Joffre, Pascal ^{[2
]}

Herve, Yannick ^{[1
]}

机构：

[1] Inst Elect Solide & Syst, F-67037 Strasbourg, France

[2] Micro Module, F-29200 Brest, France

[3] Hop Civil, Inst Rech Canc Appareil Digestif, F-67091 Strasbourg, France

来源：

OPTICAL ENGINEERING | 2007年 / 46卷 / 10期

关键词：

optical processing; tomographic image reconstruction; filtered backprojection;

D O I：

10.1117/1.2786450

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (c) 2007 Society of Photo-Optical Instrumentation Engineers.

引用

页数：16

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