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Titolo:
Fast algorithm for X-ray cone-beam microtomography
Autore:
Shih, A; Wang, G; Cheng, PC;
Indirizzi:
SUNY Buffalo, Dept Elect Engn, Adv Microscopy & Imaging Lab, Buffalo, NY 14260 USA SUNY Buffalo Buffalo NY USA 14260 py & Imaging Lab, Buffalo, NY 14260 USA Univ Iowa, Dept Radiol, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 wa, Dept Radiol, Iowa City, IA 52242 USA
Titolo Testata:
MICROSCOPY AND MICROANALYSIS
fascicolo: 1, volume: 7, anno: 2001,
pagine: 13 - 23
SICI:
1431-9276(200101/02)7:1<13:FAFXCM>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECONSTRUCTION ALGORITHM; PROJECTION;
Keywords:
X-ray computed tomography; cone-beam; microtomography; image reconstruction; real-time; nondestructive evaluation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Cheng, PC SUNY Buffalo, Dept Elect Engn, Adv Microscopy & Imaging Lab, Buffalo, NY 14260 USA SUNY Buffalo Buffalo NY USA 14260 ng Lab, Buffalo, NY 14260 USA
Citazione:
A. Shih et al., "Fast algorithm for X-ray cone-beam microtomography", MICROS MICR, 7(1), 2001, pp. 13-23

Abstract

Cone-beam X-ray microtomography attracts increasing attention due to its applications in biomedical sciences, material engineering, and industrial nondestructive evaluation. Rapid volumetric image reconstruction is highly desirable in all these areas for prompt visualization and analysis of complexstructures of interest. In this article, we reformulate a generalized Feldkamp cone-beam image reconstruction algorithm, utilize curved voxels and mapping tables, improve the reconstruction efficiency by an order of magnitude relative to a direct implementation of the standard algorithm, and demonstrate the feasibility with numerical simulation and experiments using a prototype cone-beam X-ray microtomographic system. Our fast algorithm reconstructs a 256-voxel cube from 100 projections within 2 min on an Intel PentiumII(R) 233 MHz personal computer, produces satisfactory image quality, and can be further accelerated using special hardware and/or parallel processing techniques.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:32:24