Kesse Jesus, Henry Kobs, Anselmo Cukla, Marco Cuadros, and Daniel Gamarra. 2021. Comparison of Visual SLAM Algorithms ORB-SLAM2, RTAB-Map and SPTAM in Internal and External Environments with ROS. In Anais do XIII Simpósio Brasileiro de Robótica e XVIII Simpósio Latino Americano de Robótica, outubro 11, 2021, Online, Brasil. SBC, Porto Alegre, Brasil, 216-221.