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Paper Abstract and Keywords
Presentation 2015-01-26 09:25
Activity Recognition Using Array Sensor
Yusuke Hino, Jihoon Hong, Tomoaki Ohtsuki (Keio Univ.) ASN2014-112
Abstract (in Japanese) (See Japanese page) 
(in English) Nowadays, the population of elderly person who lives alone is increasing in Japan.
Some systems are available to monitor those persons' activities, however, they have some limitations; physical burden and need to wear sensors.
In our previous work, we have proposed a fall detection method using an array antenna.
Array antenna is an antenna, which detects radio wave propagation by observing the direction of arrival (DOA) of the received signal.
In the method, it can only detect whether the activity is fall or not, so it is impossible to recognize which kind of non-fall activity the person does.
In addition, the detection accuracy of the non-fall activity is not so high.
In this report, we propose an activity recognition system by using array antenna.
We detect the person's activity (fall, walk, sit, and stand still) for every fixed time.
To improve the accuracy, we set thresholds for the continuous number of each activity, and correct the result which continues less than the threshold.
Also, we use the state transition of the activity, and correct the impossible activity transition.
Keyword (in Japanese) (See Japanese page) 
(in English) sensor / array sensor / activity recognition / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 418, ASN2014-112, pp. 31-36, Jan. 2015.
Paper # ASN2014-112 
Date of Issue 2015-01-19 (ASN) 
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 ASN2014-112

Conference Information
Committee MICT ASN MoNA  
Conference Date 2015-01-26 - 2015-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Nanki Shirahama 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ambient intelligence, ICT for Medical, Healthcare and Sports, etc 
Paper Information
Registration To ASN 
Conference Code 2015-01-MICT-ASN-MoNA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Activity Recognition Using Array Sensor 
Sub Title (in English)  
Keyword(1) sensor  
Keyword(2) array sensor  
Keyword(3) activity recognition  
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1st Author's Name Yusuke Hino  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Jihoon Hong  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Tomoaki Ohtsuki  
3rd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2015-01-26 09:25:00 
Presentation Time 25 minutes 
Registration for ASN 
Paper # ASN2014-112 
Volume (vol) vol.114 
Number (no) no.418 
Page pp.31-36 
#Pages 6 
Date of Issue 2015-01-19 (ASN) 

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