芸術科学会論文誌
Online ISSN : 1347-2267
ISSN-L : 1347-2267
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17 巻, 2 号
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  • Generation of CAPTCHA Using Sprinkled Destructors
    Youngha Chang, Akinori Urayama, Miho Watanabe, Nobuhiko Mukai
    原稿種別: research-article
    2018 年 17 巻 2 号 p. 52-61
    発行日: 2018/07/15
    公開日: 2023/05/02
    DOIhttps://doi.org/10.3756/artsci.17.52
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    CAPTCHA is a security system that is intended to distinguish computers and humans. Although many types of CAPTCHA programs exist, many CAPTCHA solver services are now becoming available. Humans can recognize partially-hidden objects that computers cannot. In this paper, we use this feature to propose a new text-based CAPTCHA, in which sprinkled destructors are placed on and under the characters. Based on the evaluation of our method, we have found that a general character recognition software called Google Tesseract and a CAPTCHA solver system are unable to recognize the CAPTCHA generated by our method although humans can recognize them.
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