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.
A Technique to Improve the Image Quality in Computer Tomography / Attivissimo, Filippo; Cavone, Giuseppe; Lanzolla, Anna Maria Lucia; Spadavecchia, Maurizio. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - STAMPA. - 59:5(2010), pp. 1251-1257. [10.1109/TIM.2010.2040932]
A Technique to Improve the Image Quality in Computer Tomography
ATTIVISSIMO, Filippo;CAVONE, Giuseppe;LANZOLLA, Anna Maria Lucia;SPADAVECCHIA, MAURIZIO
2010-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
