Title :
A Technique to Improve the Image Quality in Computer Tomography
Author :
Attivissimo, Filippo ; Cavone, Giuseppe ; Lanzolla, Anna Maria Lucia ; Spadavecchia, Maurizio
Author_Institution :
Dept. of Electrics & Electron., Polytech. of Bari, Bari, Italy
fDate :
5/1/2010 12:00:00 AM
Abstract :
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.
Keywords :
computerised tomography; image denoising; CT protocol; Gaussian operators; Prewitt operators; anisotropic diffusion; computer tomography; denoising filters; image quality; noise reduction filters; Computed tomography (CT); denoising filters; image quality; radiation dose;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2010.2040932
