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Streak artifacts from
nonconvex metal objects in X-ray tomography
Yiran Wang and Yuzhou Zou |
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Vol. 3 (2021), No. 2, 295–318
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Abstract |
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We study artifacts in the reconstruction of X-ray tomography due to nonlinear effects. For nonconvex metal objects, we analyze the new phenomena of streak artifacts from inflection points on the boundary of metal objects. We characterize the location and strength of all possible artifacts using notions of conormal distributions associated with the proper geometry. |
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Keywords
X-ray tomography, metal artifacts, microlocal analysis,
conormal distributions
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Mathematical Subject Classification
Primary: 44A12, 58J40
Secondary: 35A18
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Milestones
Received: 14 April 2020
Revised: 15 October 2020
Accepted: 28 December 2020
Published: 31 July 2021
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Authors |
| Yiran Wang | |
| Department of Mathematics Emory University Atlanta, GA United States |
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| Yuzhou Zou | |
| Department of Mathematics Stanford University Stanford, CA United States |
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