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Paper Abstract and Keywords
Presentation 2019-08-10 16:20
A System to Acquire Expiration Date of Merchandise for Visually Impaired People -- a discussion about improvement of recognition rate with machine learning --
Takeuchi Yoshinori (Daido Univ.) WIT2019-13
Abstract (in Japanese) (See Japanese page) 
(in English) We have been researching a system to acquire expiration date of Merchandise for visually impaired people. In this paper, we aim to improve the recognition rate of the conventional expiration date acquisition system by machine learning technology. In order to limit the printed part of expiration date, characters of “kigen(期限)” or “gen(限)” are learned by machine learning, and we compare the recognition results. Compared with 78.6% recognition rate in the conventional method that used SVM for recognition, the recognition rate of “kigen(期限)” for the images taken from the front was 84% and the recognition rate of “gen(限)” from the images taken for various angles was 78.9%. The recognition rate of expiration date was 40% in conventional method that used a commercially available OCR library, whereas it was 100% for the images taken from the front and 40% for the images taken from various angles.
Keyword (in Japanese) (See Japanese page) 
(in English) visual impairment / visual substitution / machine learning / character recognition / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 165, WIT2019-13, pp. 23-28, Aug. 2019.
Paper # WIT2019-13 
Date of Issue 2019-08-03 (WIT) 
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)
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Conference Information
Committee WIT  
Conference Date 2019-08-10 - 2019-08-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Teikyo University, Utsunomiya Campus (TBD) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Well-being Information Technology, etc. 
Paper Information
Registration To WIT 
Conference Code 2019-08-WIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A System to Acquire Expiration Date of Merchandise for Visually Impaired People 
Sub Title (in English) a discussion about improvement of recognition rate with machine learning 
Keyword(1) visual impairment  
Keyword(2) visual substitution  
Keyword(3) machine learning  
Keyword(4) character recognition  
1st Author's Name Takeuchi Yoshinori  
1st Author's Affiliation Daido University (Daido Univ.)
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Speaker Author-1 
Date Time 2019-08-10 16:20:00 
Presentation Time 30 minutes 
Registration for WIT 
Paper # WIT2019-13 
Volume (vol) vol.119 
Number (no) no.165 
Page pp.23-28 
Date of Issue 2019-08-03 (WIT) 

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