DocumentCode :
1984778
Title :
Noise reduction filters based on pointwise MAP for CT images
Author :
Geraldo, Rafael José ; Mascarenhas, Nelson D A
Author_Institution :
Comput. Dept., Fed. Univ. of Sao Carlos, Sao Carlos, Brazil
fYear :
2011
fDate :
15-18 May 2011
Firstpage :
89
Lastpage :
92
Abstract :
The purpose of this paper is to present different noise reduction filters for computed tomography (CT) images, based on the maximum a posteriori (MAP) criterion. Simulation and real CT images results show that the proposed techniques increase the image quality and improve the use of a low-dose CT protocol.
Keywords :
computerised tomography; filters; image denoising; maximum likelihood estimation; medical image processing; CT images; computed tomography; image quality; low-dose CT protocol; maximum a posteriori (; noise reduction filters; pointwise MAP; Computed tomography; Mathematical model; Noise measurement; PSNR; Wiener filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
ISSN :
0271-4302
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
Type :
conf
DOI :
10.1109/ISCAS.2011.5937508
Filename :
5937508
Link To Document :
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