錯視を利用した文字型CAPTCHA生成手法に関する研究

浦山 明宣; 渡邊 美保; 張 英夏; 向井 信彦

doi:10.11371/wiieej.14.03.0_79

Session ID : 14-03-25

DOI https://doi.org/10.11371/wiieej.14.03.0_79

Conference information

Name : Reports of the 273rd Technical Conference of the Institute of Image Electronics Engineers of Japan

Number : 273

Location : [in Japanese]

Date : March 14, 2015 -

A Study on the Generation of Text-based CAPTCHA by Using the Human Perception

*Akinori URAYAMA, Miho WATANABE, Youngha CHANG, Nobuhiko MUKAI

Author information

Keywords: CAPTCHA, Human Perception, Visual Experiment

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

Details

Abstract

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%.

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