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Paper Abstract and Keywords
Presentation 2011-03-10 11:10
A Study on Caption Recognition for Multi-Color Characters on Complex Background
Yutaka Katsuyama (Fujitsu Labs.), Tianyi Gui (Fujitsu Research and Development Center), Akihiro Minagawa, Yoshinobu Hotta (Fujitsu Labs.) PRMU2010-247
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a caption recognition method for multi-color characters on complex background. Caption characters are used for an efficient search on a large amount of recorded TV programs. In the caption character recognition, the caption appearance section and the area is extracted, the character patterns are extracted from the area, and recognized. This paper focuses on caption character patterns extraction and recognition for multi-color characters on complex background that conventional methods are difficult to recognize them. The proposed method extracts decomposed binary images from input color caption image by color clustering. Then character candidates that are composed of combination of connect components are extracted by using recognized certainty. Finally, characters are selected by beyond-color Dynamic Programming method in which weight on recognition certainty, character alignment, and continuity of color are used. In the character recognition evaluation of one-line multi-color character string on a complex background, a great improvement was achieved from a conventional technique that can recognize only one-color characters on complex background image.
Keyword (in Japanese) (See Japanese page) 
(in English) Multi-Color Caption / Character Recognition / Color Clustering / / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 467, PRMU2010-247, pp. 61-66, March 2011.
Paper # PRMU2010-247 
Date of Issue 2011-03-03 (PRMU) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 2011-03-10 - 2011-03-11 
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 2011-03-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Caption Recognition for Multi-Color Characters on Complex Background 
Sub Title (in English)  
Keyword(1) Multi-Color Caption  
Keyword(2) Character Recognition  
Keyword(3) Color Clustering  
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1st Author's Name Yutaka Katsuyama  
1st Author's Affiliation Fujitsu Laboratories LTD. (Fujitsu Labs.)
2nd Author's Name Tianyi Gui  
2nd Author's Affiliation Fujitsu Research and Development Center Co.,Ltd (Fujitsu Research and Development Center)
3rd Author's Name Akihiro Minagawa  
3rd Author's Affiliation Fujitsu Laboratories LTD. (Fujitsu Labs.)
4th Author's Name Yoshinobu Hotta  
4th Author's Affiliation Fujitsu Laboratories LTD. (Fujitsu Labs.)
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Speaker Author-1 
Date Time 2011-03-10 11:10:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2010-247 
Volume (vol) vol.110 
Number (no) no.467 
Page pp.61-66 
#Pages
Date of Issue 2011-03-03 (PRMU) 


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