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Paper Abstract and Keywords
Presentation 2012-03-09 11:40
Mobile Position Detection inside Tunnels by Visible Light Communication and Photogrammetry with TOF Image Sensor
Yu Hemmi (Keio Univ.), Hideaki Uchiyama (INRIA), Takao Kakehashi, Naoki Nagamoto (Sumitomo Mitsui Construction), Shinichiro Haruyama, Tomoaki Ohtsuki (Keio Univ.) RCS2011-364
Abstract (in Japanese) (See Japanese page) 
(in English) It is important for management organizations that maintain tunnels to find out their aging, such as cracks in a wall, accurately and easily. To identify the decrepit point, firstly, they take pictures of the wall continuously driving in the tunnel. After discovering the intended point from pictures, they need to identify the shooting location of the pictures. However, a global positioning system (GPS), which is a common position detection system, does not work with a high degree of accuracy inside tunnels, and as of now, the effective means to identify shooting points has not been developed. The visible light communication (VLC) by which we communicate using light from light-emitting diode (LED) is attracting attention. With the VLC technology, we can receive information from a number of lights at the same time by using an LED light as a transmitter and an image sensor as a receiver, respectively. In this report, we first realize the detection of light sources from shot pictures by employing the time-of-flight (TOF) image sensor, which calculates the distance from a target by determining TOF of light, as a receiver of VLC. Then, utilizing that capability, we propose a detection system of the shooting location by the photogrammetry technique. Finally, by doing experiments and evaluations, we demonstrate the effectiveness as the mobile position detecting system inside tunnels.
Keyword (in Japanese) (See Japanese page) 
(in English) VLC / LED / Photogrammetry / TOF / Image Sensor / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 451, RCS2011-364, pp. 287-292, March 2012.
Paper # RCS2011-364 
Date of Issue 2012-02-29 (RCS) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2011-364

Conference Information
Committee SR RCS SRW  
Conference Date 2012-03-07 - 2012-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2012-03-SR-RCS-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mobile Position Detection inside Tunnels by Visible Light Communication and Photogrammetry with TOF Image Sensor 
Sub Title (in English)  
Keyword(1) VLC  
Keyword(2) LED  
Keyword(3) Photogrammetry  
Keyword(4) TOF  
Keyword(5) Image Sensor  
1st Author's Name Yu Hemmi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Hideaki Uchiyama  
2nd Author's Affiliation INRIA (INRIA)
3rd Author's Name Takao Kakehashi  
3rd Author's Affiliation Sumitomo Mitsui Construction Co., Ltd. (Sumitomo Mitsui Construction)
4th Author's Name Naoki Nagamoto  
4th Author's Affiliation Sumitomo Mitsui Construction Co., Ltd. (Sumitomo Mitsui Construction)
5th Author's Name Shinichiro Haruyama  
5th Author's Affiliation Keio University (Keio Univ.)
6th Author's Name Tomoaki Ohtsuki  
6th Author's Affiliation Keio University (Keio Univ.)
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Date Time 2012-03-09 11:40:00 
Presentation Time 25 
Registration for RCS 
Paper # RCS2011-364 
Volume (vol) 111 
Number (no) no.451 
Page pp.287-292 
Date of Issue 2012-02-29 (RCS) 

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