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Paper Abstract and Keywords
Presentation 2011-01-20 09:50
Passive acoustic sensing of people walking
Masanari Shoji, Takashi Sawada (NTT) USN2010-39
Abstract (in Japanese) (See Japanese page) 
(in English) Passive acoustic sensing of people walking (walkers) has been investigated as the first step of a basic study of sensing or recognizing various objects based on their acoustic information. Footstep localization (position estimation) and tracking were examined experimentally in an indoor environment by using a simple microphone array consisting of four microphones set at 2.5 m above the floor. The success rate and the spatial error of localization for footsteps were analyzed. The results showed that localization and tracking of footsteps were achieved with sufficient accuracy within a diameter of 7-8 m on the floor. Optimization of the data-processing time range for one footstep for proper localization, and a simple methodology for identifying spatially close footsteps of multiple people enabled footstep localization and tracking of more than four people. The stride length, speed, and direction of each walker can be evaluated by estimating the footstep positions and times.
Keyword (in Japanese) (See Japanese page) 
(in English) Walking / Walker / Footstep / Sensing / Localization / Position estimation / Tracking / Microphone array  
Reference Info. IEICE Tech. Rep., vol. 110, no. 378, USN2010-39, pp. 7-12, Jan. 2011.
Paper # USN2010-39 
Date of Issue 2011-01-13 (USN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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 USN2010-39

Conference Information
Committee AN MoNA USN  
Conference Date 2011-01-20 - 2011-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ubiquitous, Sensor, Ad hoc networks, RFID, etc. and Technology exhibit, etc. 
Paper Information
Registration To USN 
Conference Code 2011-01-AN-MoMuC-USN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Passive acoustic sensing of people walking 
Sub Title (in English)  
Keyword(1) Walking  
Keyword(2) Walker  
Keyword(3) Footstep  
Keyword(4) Sensing  
Keyword(5) Localization  
Keyword(6) Position estimation  
Keyword(7) Tracking  
Keyword(8) Microphone array  
1st Author's Name Masanari Shoji  
1st Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
2nd Author's Name Takashi Sawada  
2nd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
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Speaker
Date Time 2011-01-20 09:50:00 
Presentation Time 20 
Registration for USN 
Paper # IEICE-USN2010-39 
Volume (vol) IEICE-110 
Number (no) no.378 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-USN-2011-01-13 


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