Dynamic tomography with a priori information.
Appl Opt
; 50(20): 3685-90, 2011 Jul 10.
Article
em En
| MEDLINE
| ID: mdl-21743582
ABSTRACT
We present "dynamic tomography" algorithms that allow for the high-resolution, time-resolved imaging of dynamic (i.e., continuously time evolving) complex systems at existing x-ray micro-CT facilities. The behavior of complex systems is constrained by the underlying physics. By exploiting a priori knowledge of the geometry of the physical process being studied to allow the use of sophisticated iterative reconstruction techniques that incorporate constraints, we improve on current frame rates by at least an order of magnitude. This allows time-resolved imaging of previously intractable processes, such as two-phase fluid flow. We present reconstructions from experimental data collected at the Australian National University x-ray micro-CT facility.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Diagnóstico por Imagem
/
Imageamento Tridimensional
/
Microtomografia por Raio-X
/
Óptica e Fotônica
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Austrália