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Open Access Green as soon as Postprint is submitted to ZB.
Characterization and reduction of artifacts in limited angle tomography.
Inverse Probl. 29:125007 (2013)
We consider the reconstruction problem for limited angle tomography using filtered backprojection (FBP) and lambda tomography. We use microlocal analysis to explain why the well-known streak artifacts are present at the end of the limited angular range. We explain how to mitigate the streaks and prove that our modified FBP and lambda operators are standard pseudodifferential operators, and so they do not add artifacts. We provide reconstructions to illustrate our mathematical results.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
X-ray Transform ; Local Tomography ; Image-reconstruction ; Tomosynthesis ; Inversion ; Space
ISSN (print) / ISBN
0266-5611
e-ISSN
1361-6420
Journal
Inverse Problems
Quellenangaben
Volume: 29,
Issue: 12,
Article Number: 125007
Publisher
Institute of Physics Publishing (IOP)
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Computational Biology (ICB)