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.) MI2008-90 |
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 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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MI2008-90 |
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) |
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Keyword(1) |
PET |
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reconstruction |
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L1 |
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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 |
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Korea University (Korea Univ.) |
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Speaker |
Author-1 |
Date Time |
2009-01-19 13:30:00 |
Presentation Time |
210 minutes |
Registration for |
MI |
Paper # |
MI2008-90 |
Volume (vol) |
vol.108 |
Number (no) |
no.385 |
Page |
pp.145-149 |
#Pages |
5 |
Date of Issue |
2009-01-12 (MI) |
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