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Paper Abstract and Keywords
Presentation 2013-10-27 08:40
Study on Factors that Affect Obstacle Sense Caused by Coloration in a Room
Teiji Tokutomi, Norihiro Uemi (Oita Univ) WIT2013-53
Abstract (in Japanese) (See Japanese page) 
(in English) There are blind persons who can perceive obstacles by using the sense of hearing. One of the clues to perceive those obstacles is coloration. Several things such as ceiling and floor affect the sense of perceiving obstacles using coloration indoors. In this paper, we investigated the effects of reflected sound from the floor to an obstacle perception. In the experiments, we have done psychological experiments to classify the reflected sound from the floor in 1. a component that does not change by the position of an obstacle and 2. a component that varies depending on an obstacle. As a result, comparing these components to where there is no floor, the former tends to make perceive the obstacle-distance difficult, and the latter is easy to perceive it. In addition, reflected sound from the floor makes it easier to perceive whether an obstacle is there or not. Then, in order to examine whether recognizing directions is possible, subjects were asked to answer the direction of the wall built on the sides of the subjects. As a result, 5 out of 6 subjects could not perceive the direction of the wall, and one subject could perceive it by moving his head from side to side.
Keyword (in Japanese) (See Japanese page) 
(in English) Bｌind people / coloration / reflected sound from the floor / precedence effect / white noise / dummy head / binaural microphone /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 272, WIT2013-53, pp. 55-60, Oct. 2013.
Paper # WIT2013-53 
Date of Issue 2013-10-19 (WIT) 
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)
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Conference Information
Committee WIT  
Conference Date 2013-10-26 - 2013-10-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WIT 
Conference Code 2013-10-WIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Factors that Affect Obstacle Sense Caused by Coloration in a Room 
Sub Title (in English)  
Keyword(1) Bｌind people  
Keyword(2) coloration  
Keyword(3) reflected sound from the floor  
Keyword(4) precedence effect  
Keyword(5) white noise  
Keyword(6) dummy head  
Keyword(7) binaural microphone  
Keyword(8)  
1st Author's Name Teiji Tokutomi  
1st Author's Affiliation Oita University (Oita Univ)
2nd Author's Name Norihiro Uemi  
2nd Author's Affiliation Oita University (Oita Univ)
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Speaker Author-1 
Date Time 2013-10-27 08:40:00 
Presentation Time 20 minutes 
Registration for WIT 
Paper # WIT2013-53 
Volume (vol) vol.113 
Number (no) no.272 
Page pp.55-60 
#Pages 6 
Date of Issue 2013-10-19 (WIT) 

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