Nowadays, there exists a notorious growing popularity in the implementation of optoelectronic devices in navigation. Using visual systems to obtain information about the environment or to get position of the body of interest in a three-dimensional frame is a solution that different vehicles and robotic manipulators are currently adding to their systems. This chapter provides information about inertial navigation and how to mathematically combine the information of multiple cameras or laser scanners with the INS. Therefore, the technologies that are currently implementing SVS and LSS at the date of publishment and how they are implemented in visual systems with the challenges involved in the mentioned cases are reviewed.