Tracking multiple people in real time based on their trajectory

In this article, we present a new method which allows tracking multiple people in real-time in a closed environment from their trajectory. The trajectory of each person is determined by his/her position occupied at each time t in order to trace the trajectory in real time. This method has the advantage of keeping track of people based on the combination of the method of the analysis of connected components and the points of interest detected by the method of Harris {[}6]. The position of these points in relation to the connected components can make the correspondence between the tracked people and connected components detected by subtracting the background. Then, the trajectory traversed by each person is determined from tracking the position of the center of gravity of the points of interest of each person.