Use of video sensors to detect motorway incidents is now widely accepted by managers of road networks. The aim of this paper is to describe part of an automatic incident detection method using image processing. The algorithm that we present is an extension of research undertaken by INRETS in the past five years. After previous work on stopped-vehicle detection on the motorway, a new type incident detection has been developed: slow isolated vehicles. This research is carried out in cooperation with Union of Toll Motorways companies (Union des Sociétés d'Autoroute à Péage) and under ISIS supervision. This function is integrated in the Tristar-AID system which is now fully operational and exploited by two French motorway operators, AREA and ESCOTA (Lyon and Nice). (Author/publisher)
Samenvatting