Scatter correction techniques in high resolution detectors based on PSPMTs and scintillator arrays: An evaluation study

Karali, E; Loudos, G; Sakelios, N; Nikita, KS; Giokaris, N

dc.contributor.author	Karali, E	en
dc.contributor.author	Loudos, G	en
dc.contributor.author	Sakelios, N	en
dc.contributor.author	Nikita, KS	en
dc.contributor.author	Giokaris, N	en
dc.date.accessioned	2014-03-01T02:43:31Z
dc.date.available	2014-03-01T02:43:31Z
dc.date.issued	2005	en
dc.identifier.issn	15224880	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31449
dc.subject	Evaluation Studies	en
dc.subject	High Resolution	en
dc.subject	Scatter Correction	en
dc.subject	Small Angle Scattering	en
dc.subject.other	Light scattering	en
dc.subject.other	Optical resolving power	en
dc.subject.other	Phosphors	en
dc.subject.other	Photons	en
dc.subject.other	Convolution Subtraction Technique (CST)	en
dc.subject.other	Deconvolution Technique (DT)	en
dc.subject.other	Dual Energy Window Subtraction Technique (DEWST)	en
dc.subject.other	Small angle scattering	en
dc.subject.other	Photodetectors	en
dc.title	Scatter correction techniques in high resolution detectors based on PSPMTs and scintillator arrays: An evaluation study	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICIP.2005.1530460	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICIP.2005.1530460	en
heal.identifier.secondary	1530460	en
heal.publicationDate	2005	en
heal.abstract	SPECT images suffer from low contrast as a result of photons scatter. The standard method for excluding scatter component in pixelized scintillators is the application of an energy window around the central photopeak channel of each crystal cell, but small angle scattered photons still appear in the photopeak window and they are included in the reconstructed images. In this work we have assessed three subtraction techniques that use a different approach in order to calculate the scatter component and subtract it from the photopeak image: The Dual Energy Window Subtraction Technique (DEWST) the Convolution Subtraction Technique (CST) and a Deconvolution Technique (DT). All these techniques are compared to the standard method. The experimental results showed the superiority of DT, as a scatter correction technique. © 2005 IEEE.	en
heal.journalName	Proceedings - International Conference on Image Processing, ICIP	en
dc.identifier.doi	10.1109/ICIP.2005.1530460	en
dc.identifier.volume	3	en
dc.identifier.spage	589	en
dc.identifier.epage	592	en