The localization of vehicles is based on a combination of measurements of the ego motion of the vehicle by using an external sensor system.
But measurement of movement alone cannot provide a high accuracy of localization. Sensors like cameras and laser sensors are able to recognize landmarks in the surrounding area of the vehicle as a reference and measure them accurately. This enables the determination of one’s own position with high accuracy.
For outdoor areas, the additional use of a global-positioning system supports the localization when longer distances have to be covered.
