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Fourier-Based Forward and Back-Projectors in Iterative Fan-Beam Tomographic Image Reconstruction

dc.contributor.authorZhang-O'Connor, Y.en_US
dc.contributor.authorFessler, Jeffrey A.en_US
dc.date.accessioned2011-08-18T18:21:22Z
dc.date.available2011-08-18T18:21:22Z
dc.date.issued2006-05-01en_US
dc.identifier.citationZhang-O'Connor, Y.; Fessler, J.A. (2006). "Fourier-Based Forward and Back-Projectors in Iterative Fan-Beam Tomographic Image Reconstruction." IEEE Transactions on Medical Imaging 25(5): 582-589. <http://hdl.handle.net/2027.42/86013>en_US
dc.identifier.issn0278-0062en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/86013
dc.description.abstractFourier-based forward and back-projection methods can reduce computation in iterative tomographic image reconstruction. Recently, an optimized nonuniform fast Fourier transform (NUFFT) approach was shown to yield accurate parallel-beam projections. In this paper, we extend the NUFFT approach to describe an O(N2 log N) projector/backprojector pair for fan-beam transmission tomography. Simulations and experiments with real CT data show that fan-beam Fourier-based forward and back-projection methods can reduce computation for iterative reconstruction while still providing accuracy comparable to their O(N3) space-based counterparts.en_US
dc.publisherIEEEen_US
dc.titleFourier-Based Forward and Back-Projectors in Iterative Fan-Beam Tomographic Image Reconstructionen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelBiomedical Engineeringen_US
dc.subject.hlbtoplevelEngineeringen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Electrical Engineering and Computer Science.en_US
dc.identifier.pmid16689262en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/86013/1/Fessler45.pdf
dc.identifier.doi10.1109/TMI.2006.872139en_US
dc.identifier.sourceIEEE Transactions on Medical Imagingen_US
dc.owningcollnameElectrical Engineering and Computer Science, Department of (EECS)


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