“…Most use feature tracking, sometimes with stereo vision, in concert with a global positioning system (GPS) and inertial sensor-based data (Agrawal, Konolige, & Bolles, 2007;Alenyà, Martinez, & Torras, 2004;Olson, et al, 2003). Autonomous robots are assessed in terms of their ability to navigate from some start point to a goal while avoiding obstacles.…”