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| Presentation | 2009-01-20 15:35 Error Analysis of Length Measurement by Manual Pointing and Magnetic Tracking for Endoscopy Takeshi Koishi, Mai Sasaki, Toshiya Nakaguchi, Norimichi Tsumura, Yoichi Miyake (Chiba Univ.)  MI2008-124 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The accurate size of affected parts is important for various diagnoses. We propose a method to measure the three-dimensional length of those parts using an endoscope with a tiny magnetic tracking sensor. In this method, an endoscopist manually points the stereo correspondence in two endoscopic images for triangulation. The manual pointing is more reliable compared with automatic stereo correspondence techniques. We analyzed the accuracy of this method by using the rigid object in the experimental environment without metallic objects. It is shown that the endoscope geometry of the triangulation mainly affects the error. Therefore, the endoscope geometry should be considered for practical use. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Endoscopy / Length measurement / Manual pointing / Triangulation / Endoscope geometry / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 385, MI2008-124, pp. 291-292, Jan. 2009. | |
| Paper # | MI2008-124 | |
| Date of Issue | 2009-01-12 (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) | |
| Download PDF | MI2008-124 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2009-01-19 - 2009-01-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | National Taiwan University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Medical Imaging |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2009-01-MI |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Error Analysis of Length Measurement by Manual Pointing and Magnetic Tracking for Endoscopy |
| Sub Title (in English) | |
| Keyword(1) | Endoscopy |
| Keyword(2) | Length measurement |
| Keyword(3) | Manual pointing |
| Keyword(4) | Triangulation |
| Keyword(5) | Endoscope geometry |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takeshi Koishi |
| 1st Author's Affiliation | Chiba University (Chiba Univ.) |
| 2nd Author's Name | Mai Sasaki |
| 2nd Author's Affiliation | Chiba University (Chiba Univ.) |
| 3rd Author's Name | Toshiya Nakaguchi |
| 3rd Author's Affiliation | Chiba University (Chiba Univ.) |
| 4th Author's Name | Norimichi Tsumura |
| 4th Author's Affiliation | Chiba University (Chiba Univ.) |
| 5th Author's Name | Yoichi Miyake |
| 5th Author's Affiliation | Chiba University (Chiba Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-01-20 15:35:00 |
| Presentation Time | 10 minutes |
| Registration for | MI |
| Paper # | MI2008-124 |
| Volume (vol) | vol.108 |
| Number (no) | no.385 |
| Page | pp.291-292 |
| #Pages | 2 |
| Date of Issue | 2009-01-12 (MI) |
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