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| Presentation | 2015-09-08 10:30 Fast Statistical Image Reconstruction Method Using Filtered-Backprojection-Type Preconditioning Fukashi Yamazaki, Takuya Nemoto, Keita Takaki, Hiroyuki Kudo (Univ. of Tsukuba)  MI2015-48 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Statistical image reconstruction can take the statistical nature of the noise in to account. However, it requires enormous computational cost, because the iterative computation is necessary and its convergence is slow. Therefore, faster convergent methods have become important recently. For example, preconditioning technique is one of them. Since the conventional preconditioning methods perform convolution using high-pass filters on the image space, its computational cost per iteration is significantly increased. In this paper, we propose a new method using filtered-backprojection-type preconditioning, based on the duality of nonlinear programming problem. This method perform the preconditioning projection space, accordingly, the computational cost is lower compared with the conventional image space preconditioned methods. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Image reconstruction / Filtered-backprojection / Preconditioning / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 218, MI2015-48, pp. 1-6, Sept. 2015. | |
| Paper # | MI2015-48 | |
| Date of Issue | 2015-09-01 (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 | MI2015-48 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2015-09-08 - 2015-09-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Electro-communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Machine learning and its application to medical image processing |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2015-09-MI |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fast Statistical Image Reconstruction Method Using Filtered-Backprojection-Type Preconditioning |
| Sub Title (in English) | |
| Keyword(1) | Image reconstruction |
| Keyword(2) | Filtered-backprojection |
| Keyword(3) | Preconditioning |
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| 1st Author's Name | Fukashi Yamazaki |
| 1st Author's Affiliation | University of Tsukuba (Univ. of Tsukuba) |
| 2nd Author's Name | Takuya Nemoto |
| 2nd Author's Affiliation | University of Tsukuba (Univ. of Tsukuba) |
| 3rd Author's Name | Keita Takaki |
| 3rd Author's Affiliation | University of Tsukuba (Univ. of Tsukuba) |
| 4th Author's Name | Hiroyuki Kudo |
| 4th Author's Affiliation | University of Tsukuba (Univ. of Tsukuba) |
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| Speaker | Author-1 |
| Date Time | 2015-09-08 10:30:00 |
| Presentation Time | 25 minutes |
| Registration for | MI |
| Paper # | MI2015-48 |
| Volume (vol) | vol.115 |
| Number (no) | no.218 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2015-09-01 (MI) |
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