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Paper Abstract and Keywords
Presentation 2010-09-21 16:10
Proposal of CAPTCHA Method based on the Difficulty of Image Recognition
Tsukasa Kobayashi, Yosuke Todo, Masakatu Morii (Kobe Univ.) LOIS2010-24 IE2010-66
Abstract (in Japanese) (See Japanese page) 
(in English) A CAPTCHA is used to protectWeb service against unfair use with automated program. A CAPTCHA is a test to ensure that the response is not generated by a computer. The most famous CAPTCHA is a text-based CAPTCHA. However, the safety of text-based CAPTCHA have been decreasing by the OCR technology improvement in recent years. On the other hand,some Image-based CAPTCHAs based on the difficulty of the image recognition were proposed. However, image-based CAPTCHA that has both usability and safety is not proposed. In this paper, we propose a new image-based CAPTCHA based on the difficulty of the mixed image recognition.
Keyword (in Japanese) (See Japanese page) 
(in English) CAPTCHA / Human Interaction Proof / image recognition / / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 207, LOIS2010-24, pp. 37-42, Sept. 2010.
Paper # LOIS2010-24 
Date of Issue 2010-09-14 (LOIS, IE) 
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 LOIS2010-24 IE2010-66

Conference Information
Committee IE LOIS ITE-ME IEE-CMN  
Conference Date 2010-09-21 - 2010-09-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LOIS 
Conference Code 2010-09-IE-LOIS-ME-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of CAPTCHA Method based on the Difficulty of Image Recognition 
Sub Title (in English)  
Keyword(1) CAPTCHA  
Keyword(2) Human Interaction Proof  
Keyword(3) image recognition  
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1st Author's Name Tsukasa Kobayashi  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Yosuke Todo  
2nd Author's Affiliation Kobe University (Kobe Univ.)
3rd Author's Name Masakatu Morii  
3rd Author's Affiliation Kobe University (Kobe Univ.)
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Speaker Author-1 
Date Time 2010-09-21 16:10:00 
Presentation Time 25 minutes 
Registration for LOIS 
Paper # LOIS2010-24, IE2010-66 
Volume (vol) vol.110 
Number (no) no.207(LOIS), no.208(IE) 
Page pp.37-42 
#Pages 6 
Date of Issue 2010-09-14 (LOIS, IE) 

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