"Directcha: A proposal of spatiometric mental rotation CAPTCHA."

Ayane Sano, Masahiro Fujita, Masakatsu Nishigaki (2016)

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DOI: 10.1109/PST.2016.7907021

access: closed

type: Conference or Workshop Paper

metadata version: 2017-05-21

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Ayane Sano, Masahiro Fujita, Masakatsu Nishigaki:
Directcha: A proposal of spatiometric mental rotation CAPTCHA. PST 2016: 585-592

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