Developing usable CAPTCHAs for blind users
Proceedings of the 9th international ACM SIGACCESS conference on Computers …, 2007•dl.acm.org
CAPTCHAs are widely used by websites for security and privacy purposes. However,
traditional text-based CAPTCHAs are not suitable for individuals with visual impairments.
We proposed and developed a new form of CAPTCHA that combines both visual and audio
information to allow easy access by users with visual impairments. A preliminary evaluation
suggests strong potential for the new form of CAPTCHA for both blind and visual users.
traditional text-based CAPTCHAs are not suitable for individuals with visual impairments.
We proposed and developed a new form of CAPTCHA that combines both visual and audio
information to allow easy access by users with visual impairments. A preliminary evaluation
suggests strong potential for the new form of CAPTCHA for both blind and visual users.
CAPTCHAs are widely used by websites for security and privacy purposes. However, traditional text-based CAPTCHAs are not suitable for individuals with visual impairments. We proposed and developed a new form of CAPTCHA that combines both visual and audio information to allow easy access by users with visual impairments. A preliminary evaluation suggests strong potential for the new form of CAPTCHA for both blind and visual users.
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