NOTICE: Only the payment function of the IEICE system will be not available on Monday, February 17, 04:10-04:50 JST. The other functions, like submission, registration, search and so on, will run normally.
We appreciate your understanding as we improve our system to keep useful growing demand for IEICE members.
IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
... (for ESS/CS/ES/ISS)
Tech. Rep. Archives
... (for ES/CS)
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2017-12-16 14:15
A deterioration discrimination method of infrared reflective marker used for optical motion capture system.
Ohbuchi Masashi, Toyohiko Hayashi, Shigehito Tanahashi (Niigata Univ.), Hiroshi Tanaka, Hiroaki Inui, Hiroki Ninomiya, Katsuya Nobuhara (Nobuhara Hospital) MBE2017-61
Abstract (in Japanese) (See Japanese page) 
(in English) The optical motion capture system can measure the 3-D motion of infrared light reflective markers secured to measuring objects. One of its problems is that repetitive use of the markers gradually deteriorates their reflection characteristic due to the separation and/or stain of a reflective material, resulting in the increase of measurement error. In measurement site, however, deteriorated markers might be still used because the marker deterioration has been judged subjectively. Then this study proposed a digital camera-based method of judging the marker deterioration objectively and easily in measuring site. In order to reduce light environment effects, we photographed a subject marker and a referential normal marker located next to the subject simultaneously. Then we evaluated the deterioration level of the subject from the difference between the gray-scale histograms of images of the subject and the reference, and judged whether the subject is deteriorated or not by means of discriminant analysis. Experiments using 25 deteriorated markers and 10 normal markers verified that the subject could be judged in a positive discrimination rate of 88.0[%]
Keyword (in Japanese) (See Japanese page) 
(in English) Infrared reflective marker / Optical motion capture system / Marker deterioration / Marker discrimination / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 360, MBE2017-61, pp. 45-50, Dec. 2017.
Paper # MBE2017-61 
Date of Issue 2017-12-09 (MBE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MBE2017-61

Conference Information
Committee MBE NC  
Conference Date 2017-12-16 - 2017-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME, general 
Paper Information
Registration To MBE 
Conference Code 2017-12-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A deterioration discrimination method of infrared reflective marker used for optical motion capture system. 
Sub Title (in English)  
Keyword(1) Infrared reflective marker  
Keyword(2) Optical motion capture system  
Keyword(3) Marker deterioration  
Keyword(4) Marker discrimination  
1st Author's Name Ohbuchi Masashi  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Toyohiko Hayashi  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Shigehito Tanahashi  
3rd Author's Affiliation Niigata University (Niigata Univ.)
4th Author's Name Hiroshi Tanaka  
4th Author's Affiliation Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital)
5th Author's Name Hiroaki Inui  
5th Author's Affiliation Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital)
6th Author's Name Hiroki Ninomiya  
6th Author's Affiliation Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital)
7th Author's Name Katsuya Nobuhara  
7th Author's Affiliation Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital)
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Date Time 2017-12-16 14:15:00 
Presentation Time 25 
Registration for MBE 
Paper # IEICE-MBE2017-61 
Volume (vol) IEICE-117 
Number (no) no.360 
Page pp.45-50 
#Pages IEICE-6 
Date of Issue IEICE-MBE-2017-12-09 

[Return to Top Page]

[Return to IEICE Web Page]

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan