Title :
Nonlinear regularization of iterative weighted filtered backprojection for helical cone-beam CT
Author :
Sunnegårdh, Johan ; Grasruck, Michael
Author_Institution :
Dept. of E.E., Linköping University, SE-581 83, Linköping, Sweden
Abstract :
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.
Keywords :
Computed tomography; Image reconstruction; Inspection; Iterative methods; Mean square error methods; Nuclear and plasma sciences; Reconstruction algorithms; Solid modeling; Spatial resolution; Vectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4774383
