Road Sign Tracking with a Predictive Filter Solution

This paper deals with the problem of estimating traffic sign position in successive frames for automatic detection systems, whose main applications involve road sign maintenance and driver-assistance systems. For road sign detection systems, the problem is traditionally handled using the information in a single-frame way. In this paper we describe the application of adaptive filters for tracking road signs. Results show that using a predictive filter we get a better performance than the obtained at the output of the recognition system, processing each frame independently. False alarms are eliminated, in most cases, because they are temporally incoherent