Reduction of the streak artifacts in circular cone beam CT using scanograms

Reduction of the streak artifacts in circular cone beam CT using scanograms

We propose a method to estimate line data from scanogram in a CT scan. Combining the circle data with the estimated line data, we can reconstruct the volumetric images by use of an exact filtered backprojection or backprojection filtration algorithm for circle-line trajectories. The results show tha...

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Hauptverfasser: Yu Zou, Zamyatin, A.A., Chiang, B.S., Silver, M.D.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Band pass filters
Computed tomography
Detectors
Filtration
Frequency
Image reconstruction
Interpolation
Nuclear and plasma sciences
Particle beams
Silver
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creator Yu Zou
Zamyatin, A.A.
Chiang, B.S.
Silver, M.D.
description We propose a method to estimate line data from scanogram in a CT scan. Combining the circle data with the estimated line data, we can reconstruct the volumetric images by use of an exact filtered backprojection or backprojection filtration algorithm for circle-line trajectories. The results show that the streak artifacts are reduced significantly compared to that of circle-only reconstruction.
doi_str_mv 10.1109/NSSMIC.2007.4436890
format Conference Proceeding
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subjects Band pass filters
Computed tomography
Detectors
Filtration
Frequency
Image reconstruction
Interpolation
Nuclear and plasma sciences
Particle beams
Silver
title Reduction of the streak artifacts in circular cone beam CT using scanograms
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