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A Technique to Improve the Image Quality in Computer Tomography

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4 Author(s)
Filippo Attivissimo ; Department of Electrics and Electronics, Polytechnic of Bari, Bari, Italy ; Giuseppe Cavone ; Anna Maria Lucia Lanzolla ; Maurizio Spadavecchia

The purpose of this paper is to assess the effect of different noise reduction filters on computed tomography (CT) images. In particular, denoising filters based on the combination of Gaussian and Prewitt operators and on anisotropic diffusion are proposed. Simulation results show that the proposed techniques increase the image quality and allow the use of a low-dose CT protocol.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:59 ,  Issue: 5 )