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Image Covariance and Lesion Detectability in Direct Fan-Beam X-Ray Computed Tomography

We consider noise in computed tomography images that are reconstructed using the classical direct fan-beam filtered backprojection algorithm, from both full and short-scan data. A new, accurate method for computing image covariance is presented. The utility of the new covariance method is demonstrat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wunderlich, Adam, Noo, Frédéric
Format: Artigo
Sprache:Inglês
Veröffentlicht: 2008
Schlagworte:
Online Zugang:https://ncbi.nlm.nih.gov/pmc/articles/PMC2860864/
https://ncbi.nlm.nih.gov/pubmed/18424878
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1088/0031-9155/53/10/002
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