A data fusion architecture for the dynamic follow-up of vehicles

This article concerns road safety and driving assistance. To solve this problem, we propose a data fusion architecture based on the Dempster-Shafer theory. This multi-level approach allows the management of complementary and redundant data which come from two perception systems: an onmidirectional vision sensor and a laser telemeter. The originality of this architecture is its ability to manage and propagate uncertainties from low level data until an high level information of danger given to the driver. The first part concerns the data sensor The second part deals with the quantification of the uncertainties of the detected vehicles, followed by a determination of situations of danger and the evaluation of their level of dangerousness with the aim Of supplying the driver with an indicator of global danger around the vehicle.