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 |
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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MI2011-154 |
Conference Information |
Committee |
MI |
Conference Date |
2012-01-19 - 2012-01-20 |
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(See Japanese page) |
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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) |
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Compressed Sensing |
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fast imaging |
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sampling theorem |
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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 |
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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 |
6 |
Date of Issue |
2012-01-12 (MI) |
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