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| Presentation | 2014-01-26 13:30 Registration Algorithm of Fundus Oculi for 3-D Optical Coherence Tomography Images Kyosuke Togashi, Miki Sakamoto (Yamagata Univ.), Gaku Takeuchi, Masahiro Akiba (TOPCON), Takeshi Yabana, Kazuko Omodaka, Morin Ryu, Wataru Kobayashi, Yu Yokoyama (Tohoku Univ.), Yasufumi Fukuma (TOPCON), Toru Nakazawa, Tetsuya Yuasa (Tohoku Univ.)  MI2013-80 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, retinal nerve fiber layer (RNFL) thickness measurement from retinal optical coherence tomography (OCT) images has been widely used as an important clinical index to indicate a glaucoma progression. While a long-term follow-up of RNFL thickness is effective tool for glaucoma diagnosis, a precise registration is indispensable for OCT images acquired at different date. In this study, we propose a registration algorithm to correct random shifts occurring whenever imaging based on a projection image generated from the 3-D OCT retinal images. For speeding-up, the algorithm was implemented by processing in Fourier space based on properties of Fourier transform with rotation and translation, which is referred to as phase-only correlation method. For the stable detection of shift, several preprocessing to raw data, such as background correction to homogenize different imaging conditions, zero-padding to resize the registration image from a rectangular to a square image size, and Hanning-windowing to suppress unnecessary higher frequency-components, were carefully applied before registration. We demonstrated the effectiveness of the proposed method using an actual retina image (512×885×64) of a healthy volunteer acquired by 3-D OCT-2000 manufactured by TOPCON, Japan. The measurement was repeated 10 times, and the degree of agreement in RNFL thickness measured was evaluated with root mean square (RMS). The average RMS before and after preregistration were 4.7±1.6 and 2.6±0.3 μm, respectively. From this result, it can be concluded that the proposed method improved the precision approximately twofold. In addition, the processing time was approximately 0.3 s for a single data set, which will fall inside a permissible range of clinical use. Proposed technique may become a useful tool for glaucoma diagnosis. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | optical coherence tomography / phase-only correlation / glaucoma / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 410, MI2013-80, pp. 133-137, Jan. 2014. | |
| Paper # | MI2013-80 | |
| Date of Issue | 2014-01-19 (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 | MI2013-80 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2014-01-26 - 2014-01-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Bunka Tenbusu Kan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Computer Assisted Diagnosis and Therapy Based on Computational Anatomy, etc. |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2014-01-MI |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Registration Algorithm of Fundus Oculi for 3-D Optical Coherence Tomography Images |
| Sub Title (in English) | |
| Keyword(1) | optical coherence tomography |
| Keyword(2) | phase-only correlation |
| Keyword(3) | glaucoma |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kyosuke Togashi |
| 1st Author's Affiliation | Yamagata University (Yamagata Univ.) |
| 2nd Author's Name | Miki Sakamoto |
| 2nd Author's Affiliation | Yamagata University (Yamagata Univ.) |
| 3rd Author's Name | Gaku Takeuchi |
| 3rd Author's Affiliation | TOPCON CORPORATION (TOPCON) |
| 4th Author's Name | Masahiro Akiba |
| 4th Author's Affiliation | TOPCON CORPORATION (TOPCON) |
| 5th Author's Name | Takeshi Yabana |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 6th Author's Name | Kazuko Omodaka |
| 6th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 7th Author's Name | Morin Ryu |
| 7th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 8th Author's Name | Wataru Kobayashi |
| 8th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 9th Author's Name | Yu Yokoyama |
| 9th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 10th Author's Name | Yasufumi Fukuma |
| 10th Author's Affiliation | TOPCON CORPORATION (TOPCON) |
| 11th Author's Name | Toru Nakazawa |
| 11th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 12th Author's Name | Tetsuya Yuasa |
| 12th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| Speaker | Author-1 |
| Date Time | 2014-01-26 13:30:00 |
| Presentation Time | 45 minutes |
| Registration for | MI |
| Paper # | MI2013-80 |
| Volume (vol) | vol.113 |
| Number (no) | no.410 |
| Page | pp.133-137 |
| #Pages | 5 |
| Date of Issue | 2014-01-19 (MI) |
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