Title :
Efficient Model of the Collimator Blurring in Pinhole SPECT
Author :
Andreyev, Andriy ; Defrise, Michel ; Vanhove, Christian
Author_Institution :
Dept. of Nucl. Medicine, Vrije Universiteit Brussel
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
We propose a new method for collimator blurring correction in pinhole SPECT, that uses the spherical symmetry of the blob basis functions. We study its performance and compare with the other correction methods, namely multi-ray methods. We also investigate some limitations of the multi-ray methods.
Keywords :
collimators; image restoration; single photon emission computed tomography; blob basis functions; collimator blurring correction; collimator blurring model; multiray methods; pinhole SPECT; single photon emission computed tomography; Apertures; Cameras; Collimators; Detectors; Image quality; Iterative methods; Nuclear and plasma sciences; Nuclear medicine; Position measurement; Reconstruction algorithms;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.353689
