Cone-beam CT reconstruction based on circular scan trajectory and ring artifact reduction / 南方医科大学学报
Journal of Southern Medical University
;
(12): 2379-2382, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-325112
ABSTRACT
The FDK algorithm is one of the most widely used algorithms for cone-beam CT reconstruction in circular trajectory due to its simplicity of implementation and computational efficiency. However, the images reconstructed by the FDK algorithm based on real projection data may be blurred without electronic correction and geometric calibration, and are often plagued by deleterious ring artifacts and shading artifacts. We compared the images reconstructed with and without detector correction based on computer experiment of the real biological object. The experimental simulation shows that these algorithms are effective in reducing the ring artifact without compromising the image resolution, and produce satisfactory results.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Aceleradores de Partículas
/
Algoritmos
/
Artefatos
/
Tomografia Computadorizada de Feixe Cônico
/
Métodos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2009
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS