|
|
Digital Library of the
European Council for Modelling and Simulation |
|
Title: |
A Way To Reduce The Artifacts Caused By Intensely
Absorbing Areas In Computed Tomography |
|
Authors: |
Marina V. Chukalina, Anastasia Ingacheva, Victor Prun, Alexey Buzmakov, Dmitry P. Nikolaev |
|
Published in:
|
(2015).ECMS 2015 Proceedings edited
by: Valeri M. Mladenov, Grisha Spasov, Petia Georgieva, Galidiya Petrova, European
Council for Modeling and Simulation. doi:10.7148/2015 ISBN:
978-0-9932440-0-1 29th
European Conference on Modelling and Simulation, Albena (Varna), Bulgaria,
May 26th – 29th,
2015 |
|
Citation
format: |
Marina V. Chukalina,
Anastasia Ingacheva, Victor Prun,
Alexey Buzmakov, Dmitry
P. Nikolaev (2015). A Way To Reduce The Artifacts
Caused By Intensely Absorbing Areas In Computed Tomography, ECMS 2015
Proceedings edited by: Valeri M. Mladenov, Petia Georgieva, Grisha Spasov, Galidiya Petrova European Council for Modeling
and Simulation. doi:10.7148/2015-0527 |
|
DOI: |
http://dx.doi.org/10.7148/2015-0527 |
|
Abstract: |
Artifacts caused by intensely absorbing
areas are encountered in computed tomography and may obscure or simulate
pathology in medical applications, hide or mimic the cracks and cavities in
the devices at industrial applications. We simulated sinograms
with different levels of absorption to demonstrate the artifacts dynamics. If
the analysis of the measured data shows the presence of strongly absorbing
areas in the object under study we propose to use quadratic programming
technique for solving the inverse problem. Although the technique is
time-consuming it allows us to avoid the typical artifacts. We compare the
images reconstructed with different techniques including the proposed one. |
|
Full
text: |
|
