DocumentCode
1488127
Title
Solving the attenuation problem in emission computed tomography using homomorphic filters
Author
Chen, Lih-shyang
Author_Institution
AT&T Bell Lab., Holmdel, NJ, USA
Volume
38
Issue
4
fYear
1990
fDate
4/1/1990 12:00:00 AM
Firstpage
714
Lastpage
717
Abstract
An approach to the attenuation problem in positron emission computed tomography (PET) is discussed. The underlying idea of the method, in which a homomorphic system and an iterative convolution backprojection algorithm are employed, is described. The use of these two algorithms in the new algorithm is discussed. Results obtained with the algorithms are judged acceptable, with the reconstructed images of many different phantoms tested seeming to converge after several iterations
Keywords
filtering and prediction theory; filters; picture processing; radioisotope scanning and imaging; PET; attenuation problem; homomorphic filters; homomorphic system; image reconstruction; iterative convolution backprojection algorithm; phantoms; positron emission computed tomography; Attenuation; Computed tomography; Convolution; Image reconstruction; Imaging phantoms; Iterative algorithms; Iterative methods; Positron emission tomography; Radioactive decay; Testing;
fLanguage
English
Journal_Title
Acoustics, Speech and Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
0096-3518
Type
jour
DOI
10.1109/29.52712
Filename
52712
Link To Document