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Paper Abstract and Keywords
Presentation 2008-02-21 11:00
Ruled Line Extraction Method using Corrective Thresholding and Linearity Evaluation
Hiroshi Tanaka, Yusaku Fujii, Hiroaki Takebe, Katsuhito Fujimoto (Fujitsu Labs.) PRMU2007-216
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes enhancements of the ruled line extraction method using threshold correction and linearity evaluation. Recent form recognition applications are required to achieve high accuracy even with various styles of form images being much degraded. To meet the high-level demand, we have developed several methods which can suppress mis-recognition cases caused by failed or over extracted ruled lines. The proposed methods include correcting binarization thresholds and evaluating linearity of ruled lines. These methods are considered as an implementation of the ruled line model described briefly in the beginning of this paper. Details of our methods, performance evaluation results and discussions are presented.
Keyword (in Japanese) (See Japanese page) 
(in English) Form Recognition / OCR / Ruled Line / Niblack / Binarization / Threshold / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 491, PRMU2007-216, pp. 13-18, Feb. 2008.
Paper # PRMU2007-216 
Date of Issue 2008-02-14 (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)
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Conference Information
Committee PRMU  
Conference Date 2008-02-21 - 2008-02-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Tsukuba 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2008-02-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Ruled Line Extraction Method using Corrective Thresholding and Linearity Evaluation 
Sub Title (in English)  
Keyword(1) Form Recognition  
Keyword(2) OCR  
Keyword(3) Ruled Line  
Keyword(4) Niblack  
Keyword(5) Binarization  
Keyword(6) Threshold  
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Keyword(8)  
1st Author's Name Hiroshi Tanaka  
1st Author's Affiliation Fujitsu Laboratories Ltd. (Fujitsu Labs.)
2nd Author's Name Yusaku Fujii  
2nd Author's Affiliation Fujitsu Laboratories Ltd. (Fujitsu Labs.)
3rd Author's Name Hiroaki Takebe  
3rd Author's Affiliation Fujitsu Laboratories Ltd. (Fujitsu Labs.)
4th Author's Name Katsuhito Fujimoto  
4th Author's Affiliation Fujitsu Laboratories Ltd. (Fujitsu Labs.)
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Speaker Author-1 
Date Time 2008-02-21 11:00:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2007-216 
Volume (vol) vol.107 
Number (no) no.491 
Page pp.13-18 
#Pages
Date of Issue 2008-02-14 (PRMU) 


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