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Modelling the penumbra in Computed Tomography(1)

BACKGROUND: In computed tomography (CT), the spot geometry is one of the main sources of error in CT images. Since X-rays do not arise from a point source, artefacts are produced. In particular there is a penumbra effect, leading to poorly defined edges within a reconstructed volume. Penumbra models...

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Detalles Bibliográficos
Autores principales: Kueh, Audrey, Warnett, Jason M., Gibbons, Gregory J., Brettschneider, Julia, Nichols, Thomas E., Williams, Mark A., Kendall, Wilfrid S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IOS Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4969716/
https://www.ncbi.nlm.nih.gov/pubmed/27232198
http://dx.doi.org/10.3233/XST-160576