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Paper Abstract and Keywords
Presentation 2015-03-14 13:00
A Study on the Generation of Text-based CAPTCHA by Using the Human Perception
Akinori Urayama, Youngha Chang, Nobuhiko Mukai (TCU)
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a new text-based CAPTCHA that cannot be recognized by computers but can be easily done by human being. CAPTCHA destructors are placed randomly on the text so that computers cannot recognize the text. Our experimental results show that computers can recognize 0% of CAPTCHAs while humans can do 97%.
Keyword (in Japanese) (See Japanese page) 
(in English) CAPTCHA / Human Perception / Visual Experiment / / / / /  
Reference Info. ITE Tech. Rep., vol. 39, no. 14, AIT2015-59, pp. 81-84, March 2015.
Paper #  
Date of Issue 2015-03-07 (AIT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee AIT IIEEJ AS  
Conference Date 2015-03-14 - 2015-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To AS 
Conference Code 2015-03-AIT-IIEEJ-AS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the Generation of Text-based CAPTCHA by Using the Human Perception 
Sub Title (in English)  
Keyword(1) CAPTCHA  
Keyword(2) Human Perception  
Keyword(3) Visual Experiment  
1st Author's Name Akinori Urayama  
1st Author's Affiliation Tokyo City University (TCU)
2nd Author's Name Youngha Chang  
2nd Author's Affiliation Tokyo City University (TCU)
3rd Author's Name Nobuhiko Mukai  
3rd Author's Affiliation Tokyo City University (TCU)
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Date Time 2015-03-14 13:00:00 
Presentation Time 90 
Registration for AS 
Paper # ITE-AIT2015-59 
Volume (vol) ITE-39 
Number (no) no.14 
Page pp.81-84 
#Pages ITE-4 
Date of Issue ITE-AIT-2015-03-07 

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