Motion Detection for Non-rigid Objects. Application to Pedestrians Monitoring in Urban Environment

In this paper, the problem of non-rigid objects detection in a non controlled urban environment, i.e. without any restriction concerning the scene features, is discussed. We present a speciic motion detection algorithm used to detect objects in the eld of view of a xed camera, such as pedestrians, vehicles, buses,... The proposed real-time motion detection algorithm is based on the construction of a reference edge image of the background. This image is composed of all stationnary edges in the scene. This work is applied to estimate the mean traverse-time of pedestrians at urban road crossings. Finally, results on a real traf-c image sequence are given in order to evaluate the performance of the system.