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32
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SOUPS
2009
ACM
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Security Privacy
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SOUPS 2009
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Balancing usability and security in a video CAPTCHA
14 years 6 months ago
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cups.cs.cmu.edu
We present a technique for using content-based video labeling as a CAPTCHA task. Our CAPTCHAs are generated from YouTube videos, which contain labels (tags) supplied by the person...
Kurt Alfred Kluever, Richard Zanibbi
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