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Paper Abstract and Keywords
Presentation 2013-05-24 16:10
Development of Eye Input Device for Severely Disabled People Adapting to the Pupil Shape Deformation Caused by the Eyelid Occlusion
Yuki Oyabu, Yuki Yamakawa, Hironobu Takano, Kiyomi Nakamura (Toyama Prefectural Univ.) MBE2013-12
Abstract (in Japanese) (See Japanese page) 
(in English) Eye input devices are used for the purpose of communication supporting for the disabled people．The previous eye input devices are controlled by the positional information of pupil or the gaze direction. However，the input device by the positional information of pupil is usually operated by combining the head movement. On the other hands，the eye gaze input device without the head movement is burdensome in operation because the calibration of the gaze direction is required．In this study, we developed a novel eye input device which operated the cursor of a personal computer by only eye movement without head movement, in order to develop the communication tool for severely disabled people, e.g. amyotrophic lateral sclerosis. In order to adapt to the pupil occlusion problem by the upper eyelid during the course of pupil detection, cross type of template matching which was robust to pupil shape changes was introduced. Further, the automatic determination method of optimal binarization threshold was devised by minimizing the number of the pupil classes through changing the binarization threshold step by step. In order to evaluate the detection performance, the pupil detection experiments were performed in 9 gaze directions using normal subjects. In results, the detection rates of pupil were over 90% in all gaze directions. The proposed cursor control method used the relative information, i.e. the length and direction connecting from the reference point to the center position of pupil, thus eliminated the calibration both for the gaze direction and head movement. Therefore, the proposed system allows users to control the cursor of personal computer using eye movement alone without calibration.
Keyword (in Japanese) (See Japanese page) 
(in English) Cotrol of mouse cursor / Pupil detection / Amyotrophic lateral sclerosis / Eye input device / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 61, MBE2013-12, pp. 57-61, May 2013.
Paper # MBE2013-12 
Date of Issue 2013-05-17 (MBE) 
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 MBE  
Conference Date 2013-05-24 - 2013-05-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2013-05-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Eye Input Device for Severely Disabled People Adapting to the Pupil Shape Deformation Caused by the Eyelid Occlusion 
Sub Title (in English)  
Keyword(1) Cotrol of mouse cursor  
Keyword(2) Pupil detection  
Keyword(3) Amyotrophic lateral sclerosis  
Keyword(4) Eye input device  
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1st Author's Name Yuki Oyabu  
1st Author's Affiliation Toyama Prefectural University (Toyama Prefectural Univ.)
2nd Author's Name Yuki Yamakawa  
2nd Author's Affiliation Toyama Prefectural University (Toyama Prefectural Univ.)
3rd Author's Name Hironobu Takano  
3rd Author's Affiliation Toyama Prefectural University (Toyama Prefectural Univ.)
4th Author's Name Kiyomi Nakamura  
4th Author's Affiliation Toyama Prefectural University (Toyama Prefectural Univ.)
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Speaker Author-2 
Date Time 2013-05-24 16:10:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2013-12 
Volume (vol) vol.113 
Number (no) no.61 
Page pp.57-61 
#Pages 5 
Date of Issue 2013-05-17 (MBE) 

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