Scatter and Blurring Compensation in Inhomogeneous Media Using a Postprocessing Method
Joint Authors
Source
International Journal of Biomedical Imaging
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-03-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
An efficient postprocessing method to compensate for the scattering and blurring effects in inhomogeneous medium in SPECT is proposed.
A two-dimensional point spread function (2D-PSF) was estimated in the image domain to model the combination of these two physical effects.
This 2D-PSF in the inhomogeneous medium is fitted with an asymmetric Gaussian function based on Monte Carlo simulation results.
An efficient further blurring and deconvolution method was used to restore images from the spatially variant 2D-PSF kernel.
The compensation is performed using a computer-simulated NCAT phantom and a flanged Jaszczak experimental phantom.
The preliminary results demonstrate an improvement in image quality and quantity accuracy with increased image contrast (25% increase compared to uncompensated image) and decreased error (40% decrease compared to uncompensated image).
This method also offers an alternative to compensate for scatter and blurring in a more time efficient manner compared to the popular iterative methods.
The execution time for this efficient postprocessing method is only a few minutes, which is within the clinically acceptable range.
American Psychological Association (APA)
Yan, Yan& Zeng, Gengsheng L.. 2009. Scatter and Blurring Compensation in Inhomogeneous Media Using a Postprocessing Method. International Journal of Biomedical Imaging،Vol. 2008, no. 2008, pp.1-11.
https://search.emarefa.net/detail/BIM-499585
Modern Language Association (MLA)
Yan, Yan& Zeng, Gengsheng L.. Scatter and Blurring Compensation in Inhomogeneous Media Using a Postprocessing Method. International Journal of Biomedical Imaging No. 2008 (2008), pp.1-11.
https://search.emarefa.net/detail/BIM-499585
American Medical Association (AMA)
Yan, Yan& Zeng, Gengsheng L.. Scatter and Blurring Compensation in Inhomogeneous Media Using a Postprocessing Method. International Journal of Biomedical Imaging. 2009. Vol. 2008, no. 2008, pp.1-11.
https://search.emarefa.net/detail/BIM-499585
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499585