CAPTCHAS THAT INCLUDE OVERLAPPED CHARACTERS, PROJECTIONS ON VIRTUAL 3D SURFACES, AND/OR VIRTUAL 3D OBJECTS Shanmugasundaram Ravikumar,Anirban Dasgupta,Kunal Punera,Achint Oommen Thomasmag（2011）引用 28|浏览33暂无评分AI 理解论文溯源树样例生成溯源树，研究论文发展脉络Chat Paper正在生成论文摘要
