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Paper Abstract and Keywords
Presentation 2012-01-20 15:20
Compressed Sensing using Multi-step FREBAS Thresholding in Magnetic Resonance Imaging
Hirotoshi Arai, Satoshi Ito, Yoshifumi Yamada (Utsunomiya Univ.) MI2011-154
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, there has been an emerging interest to accelerate MRI through iterative reconstruction of undersampled data based on the metrics that promote image sparsity. In general, MR images do not show sparsity, therefore a sparsifying transformation function is required to introduce sparsity in compressed sensing. We proposed a new compressed sensing scheme in which multi-step FREBAS transform is used for the sparsifying transform. FREBAS transform is a kind of multi-resolution analysis, which decompose input image into many down-scaled images having different frequency bandwidth. In this work we compare the compressed sensing of using multi-step FREBAS transform with standard compressed sensing. Experiments show that our method can achieve a reduction factor higher than the standard compressed sensing method using wavelet transform.
Keyword (in Japanese) (See Japanese page) 
(in English) Compressed Sensing / fast imaging / sampling theorem / FREBAS transform / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 389, MI2011-154, pp. 425-430, Jan. 2012.
Paper # MI2011-154 
Date of Issue 2012-01-12 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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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Conference Information
Committee MI  
Conference Date 2012-01-19 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To MI 
Conference Code 2012-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Compressed Sensing using Multi-step FREBAS Thresholding in Magnetic Resonance Imaging 
Sub Title (in English)  
Keyword(1) Compressed Sensing  
Keyword(2) fast imaging  
Keyword(3) sampling theorem  
Keyword(4) FREBAS transform  
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1st Author's Name Hirotoshi Arai  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Satoshi Ito  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Yoshifumi Yamada  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2012-01-20 15:20:00 
Presentation Time 15 minutes 
Registration for MI 
Paper # MI2011-154 
Volume (vol) vol.111 
Number (no) no.389 
Page pp.425-430 
#Pages
Date of Issue 2012-01-12 (MI) 


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