Diogo Daniel Ferreira, Luís Leira, Petya Mihaylova, Petia Georgieva. Breaking Text-Based CAPTCHA with Sparse Convolutional Neural Networks. In Aythami Morales, Julian Fiérrez, José Salvador Sánchez, Bernardete Ribeiro, editors, Pattern Recognition and Image Analysis - 9th Iberian Conference, IbPRIA 2019, Madrid, Spain, July 1-4, 2019, Proceedings, Part II. Volume 11868 of Lecture Notes in Computer Science, pages 404-415, Springer, 2019. [doi]
Abstract is missing.