@InProceedings{MascarenhasSantCruv:1996:UsMAEs,
author = "Mascarenhas, Nelson Delfino d'{\'A}vila and Santos, Saulo Savio
Leite and Cruvinel, Paulo Estev{\~a}o",
title = "The use of MAP estimation techniques in the tomographic
reconstruction of Poisson noise corrupted images",
booktitle = "Anais...",
year = "1996",
editor = "Velho, Luiz and Albuquerque, Arnaldo de and Lotufo, Roberto A.",
pages = "197--204",
organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e
Processamento de Imagens, 9. (SIBGRAPI)",
publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
address = "Porto Alegre",
abstract = "This work presents new methods for the tomographic reconstruction
of images with Poisson noise corrupted projections. The
reconstruction method is performed by first filtering the noisy
projections under the Maximum a Posteriori criterion and
subsequently reconstructing the images through conventional
filtering-backprojection methods using the ramp filter. The {"}a
priori{"} knowledge is incorporated by using several densities,
including the Gaussian and densities defined on the non-negative
real line. These densities were used to denote the fact that the
rates of counting on the projections are non-negative quantities.
Experimental results, both simulated and real, indicate that, by
using the MAP criterion, it is possible to obtain better
performance, as compared to conventional methods of
reconstruction, with a very small increase in computational
effort.",
conference-location = "Caxambu, MG, Brazil",
conference-year = "29 Oct.-1 Nov. 1996",
isbn = "85-244-0103-6",
language = "en",
organisation = "SBC - Sociedade Brasileira de Computa{\c{c}}{\~a}o; UFMG -
Universidade Federal de Minas Gerais",
ibi = "83LX3pFwXQZW44Lb/cMRki",
url = "http://urlib.net/ibi/83LX3pFwXQZW44Lb/cMRki",
targetfile = "a17.pdf",
type = "Aplica{\c{c}}{\~o}es em Medicina",
urlaccessdate = "2024, Apr. 27"
}