RECUR, Benoît; GUILLET, Jean Paul; BASSEL, Léna; FRAGNOL, Carole; MANEK-HÖNNINGER, Inka; DELAGNES, Jean-Christophe; BENHARBONE, William; DESBARATS, Pascal; DOMENGER, Jean-Philippe; MOUNAIX, Patrick

doi:10.1117/1.OE.51.9.091609

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RECUR, Benoît
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

GUILLET, Jean Paul

Laboratoire Ondes et Matière d'Aquitaine [LOMA]

BASSEL, Léna
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

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Ce document a été publié dans

Optical Engineering. 2012-05-22, vol. 51, n° 9, p. 091609-1 -- 091609-7

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Résumé en anglais

Three-dimensional (3-D) terahertz computed tomography has already been performed with three different reconstruction methods (standard back-projection algorithm and two iterative analyses) to reconstruct 3-D objects. A Gaussian beam model is developed according to the physical properties of terahertz waves such as the energy distribution within the propagation path. This model is included as a new convolution filter into the tomographic reconstruction methods in order to analyze the impact of a such effect and then to enhance quality and accuracy of the resulting images. We demonstrate the improvements of the optimized reconstructions for applied 3-D terahertz tomography.< Réduire

Mots clés en anglais

terahertz imaging

tomographic imaging

three-dimensional image processing

image reconstruction techniques

scanners.

scanners

DOI

http://dx.doi.org/10.1117/1.OE.51.9.091609

Projet Européen

Development and Optimization of THz NDT on Aeronautics Composite Multi-layered Structure

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Importé de hal

Unités de recherche

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798