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| Presentation | 2016-07-26 15:25 Super Resolution of MR images via TV-minimization in Signal Space and Spectrum Fitting in Fourier Space Naoki Kawamura, Tatsuya Yokota, Hidekata Hontani (NIT), Chika Iwamoto, Kenoki Ohuchida, Makoto Hashizume (Kyushu Univ)  MI2016-46 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In usual MRI, one of three directions of spacial resolution is lower than other directions, with their slices shifted. Voxel values of MRI are obtained as averages for their small peripheral area by partial volume effects, which are observed as the lack of high frequency components in Fourier space. In this paper, we propose a new method to reconstruct a high resolution MRI from multiple low resolution MRIs which are measured for various directions. We introduce TV-norm minimization to the classical super resolution method and demonstrate its performance with a simple simulation. Finally, we report the results in a medical application for the MRI of mouse-pancreas. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Fourier Transform / Super Resolution / Total Variation / ADMM / Majorization Minimization / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 160, MI2016-46, pp. 55-60, July 2016. | |
| Paper # | MI2016-46 | |
| Date of Issue | 2016-07-18 (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) | |
| Download PDF | MI2016-46 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2016-07-25 - 2016-07-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tomakomai Civic Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Medical Imaging, etc. |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2016-07-MI |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Super Resolution of MR images via TV-minimization in Signal Space and Spectrum Fitting in Fourier Space |
| Sub Title (in English) | |
| Keyword(1) | Fourier Transform |
| Keyword(2) | Super Resolution |
| Keyword(3) | Total Variation |
| Keyword(4) | ADMM |
| Keyword(5) | Majorization Minimization |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoki Kawamura |
| 1st Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 2nd Author's Name | Tatsuya Yokota |
| 2nd Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 3rd Author's Name | Hidekata Hontani |
| 3rd Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 4th Author's Name | Chika Iwamoto |
| 4th Author's Affiliation | Kyushyu University (Kyushu Univ) |
| 5th Author's Name | Kenoki Ohuchida |
| 5th Author's Affiliation | Kyushyu University (Kyushu Univ) |
| 6th Author's Name | Makoto Hashizume |
| 6th Author's Affiliation | Kyushyu University (Kyushu Univ) |
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| Speaker | Author-1 |
| Date Time | 2016-07-26 15:25:00 |
| Presentation Time | 30 minutes |
| Registration for | MI |
| Paper # | MI2016-46 |
| Volume (vol) | vol.116 |
| Number (no) | no.160 |
| Page | pp.55-60 |
| #Pages | 6 |
| Date of Issue | 2016-07-18 (MI) |
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