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Proceedings Paper

CT metal artifact reduction by soft inequality constraints
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Paper Abstract

The artifacts (known as metal-like artifacts) arising from incorrect reconstruction may obscure or simulate pathology in medical applications, hide or mimic cracks and cavities in the scanned objects in industrial tomographic scans. One of the main reasons caused such artifacts is photon starvation on the rays which go through highly absorbing regions. We indroduce a way to suppress such artifacts in the reconstructions using soft penalty mimicing linear inequalities on the photon starved rays. An efficient algorithm to use such information is provided and the effect of those inequalities on the reconstruction quality is studied.

Paper Details

Date Published: 8 December 2015
PDF: 5 pages
Proc. SPIE 9875, Eighth International Conference on Machine Vision (ICMV 2015), 98751C (8 December 2015); doi: 10.1117/12.2228810
Show Author Affiliations
Marina Chukalina, Institute of Microelectronics Technology and High Purity Materials (Russian Federation)
Shubnikov Institute of Crystallography (Russian Federation)
Dmitry Nikolaev, Institute for Information Transmission Problems (Russian Federation)
Valerii Sokolov, Institute for Information Transmission Problems (Russian Federation)
Anastasiya Ingacheva, Shubnikov Institute of Crystallography (Russian Federation)
Higher School of Economics (Russian Federation)
Alexey Buzmakov, Shubnikov Institute of Crystallography (Russian Federation)
Victor Prun, Moscow Institute of Physics and Technology (Russian Federation)


Published in SPIE Proceedings Vol. 9875:
Eighth International Conference on Machine Vision (ICMV 2015)
Antanas Verikas; Petia Radeva; Dmitry Nikolaev, Editor(s)

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