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Paper Abstract and Keywords
Presentation 2008-02-21 11:30
Word Extraction Method by Multiple Generation of Character Hypotheses
Hiroaki Takebe, Katsuhito Fujimoto (FUJITSU LABORATORIES LTD.) PRMU2007-217
Abstract (in Japanese) (See Japanese page) 
(in English) It is necessary to extract words which are headers and data for recognizing logical structure of form images. However, word extraction fails if the part of characters is not extracted because of layout analysis error or character recognition error. Words of data usually consist of numbers or symbols which are similar to many characters, so they are often mis-extracted due to character recognition error. Moreover, words of data are represented by regular expression which includes variable numbers of wild-card character. We propose the word extraction method which generates multiple character hypotheses by controlling recognition target, and searches the combination of recognition result with character of regular expression by lattice matching based on the local optimum. It was confirmed that the proposed method improved extraction accuracy of header and data by the experiment for the real form images.
Keyword (in Japanese) (See Japanese page) 
(in English) Form Image / Word / Header / Data / Recognition Error / Regular Expression / Lattice /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 491, PRMU2007-217, pp. 19-24, Feb. 2008.
Paper # PRMU2007-217 
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) Word Extraction Method by Multiple Generation of Character Hypotheses 
Sub Title (in English)  
Keyword(1) Form Image  
Keyword(2) Word  
Keyword(3) Header  
Keyword(4) Data  
Keyword(5) Recognition Error  
Keyword(6) Regular Expression  
Keyword(7) Lattice  
Keyword(8)  
1st Author's Name Hiroaki Takebe  
1st Author's Affiliation FUJITSU LABORATORIES LIMITED (FUJITSU LABORATORIES LTD.)
2nd Author's Name Katsuhito Fujimoto  
2nd Author's Affiliation FUJITSU LABORATORIES LIMITED (FUJITSU LABORATORIES LTD.)
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Speaker Author-1 
Date Time 2008-02-21 11:30:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2007-217 
Volume (vol) vol.107 
Number (no) no.491 
Page pp.19-24 
#Pages
Date of Issue 2008-02-14 (PRMU) 


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