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Paper Abstract and Keywords
Presentation 2009-02-20 15:30
Character Normalization Methods using Moments of Gradient Features
Toshinori Miyoshi, Takeshi Nagasaki, Hiroshi Shinjo (Hitachi, Ltd.,) PRMU2008-239
Abstract (in Japanese) (See Japanese page) 
(in English) Normalization is one of the most important preprocessing operations, and has a large effect on the performance of character recognition. A purpose of normalization is to regulate the size, position, and the shape of character images so as to reduce the within-class shape variation. Among various methods of normalization, moment based normalizations are reported to largely improve the performance of character recognition. However, conventional moment based normalizations can't reduce the variation of stroke length and/or thickness adequately. In order to alleviate this problem, we propose the moment normalization methods that uses the moments of character contour instead of character images itself. In the proposed methods, character contours are extracted by gradient feature extraction method.
Keyword (in Japanese) (See Japanese page) 
(in English) Charecter recognition / Normalization / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 432, PRMU2008-239, pp. 187-192, Feb. 2009.
Paper # PRMU2008-239 
Date of Issue 2009-02-12 (PRMU) 
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 PRMU2008-239

Conference Information
Committee PRMU  
Conference Date 2009-02-19 - 2009-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Tokyo (IIS) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2009-02-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Character Normalization Methods using Moments of Gradient Features 
Sub Title (in English)  
Keyword(1) Charecter recognition  
Keyword(2) Normalization  
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1st Author's Name Toshinori Miyoshi  
1st Author's Affiliation Hitachi Limited (Hitachi, Ltd.,)
2nd Author's Name Takeshi Nagasaki  
2nd Author's Affiliation Hitachi Limited (Hitachi, Ltd.,)
3rd Author's Name Hiroshi Shinjo  
3rd Author's Affiliation Hitachi Limited (Hitachi, Ltd.,)
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Speaker Author-1 
Date Time 2009-02-20 15:30:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2008-239 
Volume (vol) vol.108 
Number (no) no.432 
Page pp.187-192 
#Pages 6 
Date of Issue 2009-02-12 (PRMU) 

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