DocumentCode
1233605
Title
Local convolution in ectomography
Author
Dale, Susanne M. ; Edholm, Paul R.
Author_Institution
Dept. of Med. Imaging, Karolinska Inst., Huddinge, Sweden
Volume
36
Issue
9
fYear
1989
Firstpage
964
Lastpage
968
Abstract
In tomographic imaging, using limited angular sampling, details outside the imaged section are displaced along circles of blur. In ectomography, these are eliminated by a spatial convolution process. It is shown that the convolution function has to be as long as the projected dimension of the imaged object perpendicular to the section and twice the dimension parallel to the section.
Keywords
patient diagnosis; blur circles; convolution function; ectomography; imaged object; limited angular sampling; local convolution; medical diagnostic imaging; projected dimension; spatial convolution process; tomographic imaging; Computer simulation; Convolution; Filters; Filtration; Frequency; Image reconstruction; Image sampling; Nuclear medicine; Shape; Tomography; Image Processing, Computer-Assisted; Mathematical Computing; Tomography, X-Ray Computed;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/10.35305
Filename
35305
Link To Document