DocumentCode
850190
Title
Cubic Splines for Filter Design in Computed Tomography
Author
Huang, Sung-Cheng ; Phelps, Michael E. ; Hoffman, Edward J. ; Kuhl, David E.
Author_Institution
Division of Nuclear Medicine, UCLA Medical School and Laboratory of Nuclear Medicine and Radiation Biology University of California, Los Angeles Los Angeles, California 90024
Volume
27
Issue
5
fYear
1980
Firstpage
1368
Lastpage
1374
Abstract
Application of cubic splines is investigated to provide a convenient method of designing flexible reconstruction filters for computed tomography (CT). Cubic splines were found to be compatible with the basic requirements of CT filter´s frequency response functions. An interactive computer software system was developed to implement the method of designing CT filters with cubic splines. The system was found to be convenient to use and could provide filters of various characteristics. An example is shown to illustrate the capability of the method in designing filters that can reduce noise levels in emission CT images.
Keywords
Back; Biomedical imaging; Computed tomography; Design methodology; Filters; Frequency response; Image reconstruction; Noise level; Projection algorithms; Software systems;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1980.4331026
Filename
4331026
Link To Document