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Paper Abstract and Keywords
Presentation 2013-01-24 11:40
Aerial Handwritten Character Recognition using 2D Acceleration Information and 1D Pen Tilt Information
Yukari Otsubo, Mitsuru Nakai (Toyama Pref. Univ.) PRMU2012-112 MVE2012-77
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents an aerial handwritten character recognitionsystem, in which a three-dimensional accelerometer is used for sensing handwriting motions. Although the character is written in the air, it seems reasonable to be assumed that the pen-tip moves on some two-dimensional plane. However, it is difficult to recognize '0' and '6' by using only two-dimensional acceleration signal. To solve this problem, we utilize an acceleration signal toward the pen-tip direction as pen-tilt information. In our proposed method, handwritings are modeled by multi-stream HMMs, which have two streams of writing acceleration feature and pen-tilt acceleration feature. In experiments, correct recognition rate became at maximum when stream-weight was set to 0.5 in numeral character recognition, and 0.4 in hiragana character recognition. Furthermore, we have obtained a possibility that error reduction rate will be about 80%, if stream weight can be adjusted for each handwritten characters respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) handwritten character recognition / aerial handwritten / aerial handwriting / HMM / pen tilt / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 385, PRMU2012-112, pp. 263-268, Jan. 2013.
Paper # PRMU2012-112 
Date of Issue 2013-01-16 (PRMU, MVE) 
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 PRMU2012-112 MVE2012-77

Conference Information
Committee PRMU MVE IPSJ-CVIM  
Conference Date 2013-01-23 - 2013-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2013-01-PRMU-MVE-CVIM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Aerial Handwritten Character Recognition using 2D Acceleration Information and 1D Pen Tilt Information 
Sub Title (in English)  
Keyword(1) handwritten character recognition  
Keyword(2) aerial handwritten  
Keyword(3) aerial handwriting  
Keyword(4) HMM  
Keyword(5) pen tilt  
Keyword(6)  
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Keyword(8)  
1st Author's Name Yukari Otsubo  
1st Author's Affiliation Toyama Prefectural University Graduate School (Toyama Pref. Univ.)
2nd Author's Name Mitsuru Nakai  
2nd Author's Affiliation Toyama Prefectural University Graduate School (Toyama Pref. Univ.)
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Speaker Author-1 
Date Time 2013-01-24 11:40:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2012-112, MVE2012-77 
Volume (vol) vol.112 
Number (no) no.385(PRMU), no.386(MVE) 
Page pp.263-268 
#Pages 6 
Date of Issue 2013-01-16 (PRMU, MVE) 

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