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Paper Abstract and Keywords
Presentation 2018-05-18 14:45
Low-Dose CT Image Reconstruction with Multiclass Dictionary Learning
Hiryu Kamoshita, Daichi Kitahara, Akira Hirabayashi (Ritsumeikan Univ.) SIP2018-15 IE2018-15 PRMU2018-15 MI2018-15
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a high-precision CT image reconstruction method from low-dose X-ray projection data. In conventional reconstruction methods using a single patch-based dictionary, there exist many patches that cannot be expressed sparsely by the dictionary, and thus the reconstruction quality would not be sufficient. The proposed method adopts patch clustering and uses a different dictionary for each patch cluster. Simulations using real CT data demonstrate the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Low-Dose CT / Image Reconstruction / Dictionary Learning / Clustering / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 33, SIP2018-15, pp. 63-68, May 2018.
Paper # SIP2018-15 
Date of Issue 2018-05-10 (SIP, IE, PRMU, MI) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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)
Download PDF SIP2018-15 IE2018-15 PRMU2018-15 MI2018-15

Conference Information
Committee PRMU MI IE SIP  
Conference Date 2018-05-17 - 2018-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SIP 
Conference Code 2018-05-PRMU-MI-IE-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Low-Dose CT Image Reconstruction with Multiclass Dictionary Learning 
Sub Title (in English)  
Keyword(1) Low-Dose CT  
Keyword(2) Image Reconstruction  
Keyword(3) Dictionary Learning  
Keyword(4) Clustering  
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1st Author's Name Hiryu Kamoshita  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Daichi Kitahara  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
3rd Author's Name Akira Hirabayashi  
3rd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker
Date Time 2018-05-18 14:45:00 
Presentation Time 30 
Registration for SIP 
Paper # IEICE-SIP2018-15,IEICE-IE2018-15,IEICE-PRMU2018-15,IEICE-MI2018-15 
Volume (vol) IEICE-118 
Number (no) no.33(SIP), no.34(IE), no.35(PRMU), no.36(MI) 
Page pp.63-68 
#Pages IEICE-6 
Date of Issue IEICE-SIP-2018-05-10,IEICE-IE-2018-05-10,IEICE-PRMU-2018-05-10,IEICE-MI-2018-05-10 


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