Li, Jingmeng, Lukang Fu, Surun Yang, and Hui Wei. “MI-CAPTCHA: Enhance the Security of CAPTCHA Using Mooney Images”. Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 2 (April 11, 2025): 1383–1391. Accessed May 12, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/32128.