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