Amalia I. Rusu, Venu Govindaraju. Visual CAPTCHA with Handwritten Image Analysis. In Henry S. Baird, Daniel P. Lopresti, editors, Human Interactive Proofs, Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings. Volume 3517 of Lecture Notes in Computer Science, pages 42-52, Springer, 2005. [doi]
Abstract is missing.