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Date: 2018-02-14 16:46:12 | rtCaptcha: A Real-Time CAPTCHA Based Liveness Detection System Erkam Uzun, Simon Pak Ho Chung, Irfan Essa and Wenke Lee Georgia Institute of Technology , , and wenAdd to Reading ListSource URL: wp.internetsociety.orgDownload Document from Source WebsiteFile Size: 4,08 MBShare Document on Facebook |