Artifacts in projection data and images obtained by medical X-ray computer tomography were analyzed. A general-purpose tomographic image reconstruction unit was used to clarify and elaborate the artifact simulation mechanism. It allows corrupted data to be input at different stages of the image reconstruction procedure. Introduction of these data leads to occurrence of image artifacts. The artifact simulation was used to develop filtering procedures for reduction of artifacts and evaluate the filter effectiveness. An effective method for reduction of artifacts in tomographic images based on projection data filtering was found.
Similar content being viewed by others
References
Jiang Hsieh, Computed Tomography: Principles, Design, Artifacts, and Recent Advances, SPIE Press (2003).
Simonov E.N., Physical and Mathematical Principles of Design of Tomographic X-Ray Computer Systems [in Russian], RAE, Moscow (2011).
Simonov E.N., Tomographic Measuring Information Systems. X-Ray Computer Tomography [in Russian], NIYaU MIFI, Moscow (2011).
Simonov E.N., Physics of Imaging in X-Ray Computer Tomography [in Russian], NIU YuUrGU, Chelyabinsk (2013).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Meditsinskaya Tekhnika, Vol. 49, No. 5, Sep.-Oct., 2015, pp. 16-18.
Rights and permissions
About this article
Cite this article
Laskov, V.V., Simonov, E.N. Reduction of Ring Artifacts in Computer Tomography. Biomed Eng 49, 274–277 (2016). https://doi.org/10.1007/s10527-016-9547-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10527-016-9547-9