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Paper Abstract and Keywords
Presentation 2009-01-19 13:30
[Poster Presentation] L1 minimization based EM algorithm for PET Reconstruction
Seokyoon Choi, Jang-seok Oh (Korea Univ.), Chang-soo Kim (Catholic Univ. of Pusan), Mingi Kim (Korea Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In PET reconstruction, iterative (EM, MAP) methods known as more accurate system modelling than analytic reconstruction methods such as backprojection filtering and filtered backprojection. These methods are considered to reduce noise effects in reconstructed images. In this study, we suggest L1-EM minimization algorithm to iterative reconstruction and L1-EM algorithm are implemented and compared with other results. the observation vectors (sinogram data) were constructed by forward projection, then scaled up to total 2 。ソ 106 counts by multiplying a constant, corrupted with Poisson noise, and finally scaled back. To quantify the quality of the reconstructed images, we calculated the root mean square error (RMSE) for the reconstruction. Finally L1 minimization base EM algoritnm's result shows better performance than other methods.
Keyword (in Japanese) (See Japanese page) 
(in English) PET / reconstruction / L1 / iterative reconstruction / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 385, MI2008-90, pp. 145-149, Jan. 2009.
Paper # MI2008-90 
Date of Issue 2009-01-12 (MI) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MI  
Conference Date 2009-01-19 - 2009-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) National Taiwan University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging 
Paper Information
Registration To MI 
Conference Code 2009-01-MI 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) L1 minimization based EM algorithm for PET Reconstruction 
Sub Title (in English)  
Keyword(1) PET  
Keyword(2) reconstruction  
Keyword(3) L1  
Keyword(4) iterative reconstruction  
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1st Author's Name Seokyoon Choi  
1st Author's Affiliation Korea University (Korea Univ.)
2nd Author's Name Jang-seok Oh  
2nd Author's Affiliation Korea University (Korea Univ.)
3rd Author's Name Chang-soo Kim  
3rd Author's Affiliation Catholic University of Pusan (Catholic Univ. of Pusan)
4th Author's Name Mingi Kim  
4th Author's Affiliation Korea University (Korea Univ.)
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Speaker
Date Time 2009-01-19 13:30:00 
Presentation Time 210 
Registration for MI 
Paper # IEICE-MI2008-90 
Volume (vol) IEICE-108 
Number (no) no.385 
Page pp.145-149 
#Pages IEICE-5 
Date of Issue IEICE-MI-2009-01-12 


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