Nonlinear regularization of iterative weighted filtered backprojection for helical cone-beam CT

Nonlinear regularization of iterative weighted filtered backprojection for helical cone-beam CT

We report on experiments on combining iterative weighted filtered backprojection with nonlinear regularization. The resulting methods allow for contrast dependent resolution. In combination with improved geometrical modeling of the acquisition process, they have the potential to improve high contras...

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Bibliographische Detailangaben
Hauptverfasser: Sunnegardh, Johan, Grasruck, Michael
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Computed tomography
Image reconstruction
Inspection
Iterative methods
Mean square error methods
Nuclear and plasma sciences
Reconstruction algorithms
Solid modeling
Spatial resolution
TECHNOLOGY
TEKNIKVETENSKAP
Vectors
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Beschreibung
Zusammenfassung:We report on experiments on combining iterative weighted filtered backprojection with nonlinear regularization. The resulting methods allow for contrast dependent resolution. In combination with improved geometrical modeling of the acquisition process, they have the potential to improve high contrast resolution while preserving low contrast image properties.
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.2008.4774383