Title :
Daytime visibility range monitoring through use of a roadside camera
Author :
Hautière, Nicolas ; Bigorgne, Erwan ; Aubert, Didier
Author_Institution :
Lab. Central des Ponts et Chaussees, Paris
Abstract :
Based on a road meteorology standard, we present a roadside camera-based system able to detect daytime fog and to estimate the visibility range. Two detection algorithms, both based on a daytime fog model, are presented along with a process to combine their outputs. Unlike previous methods, the system takes into account the 3-D scene structure and filters the moving objects from the region of interest through use of a background modelling approach and detects the cause of the visibility reduction. The study of the system accuracy with respect to the camera characteristics leads to a specification of the characteristics of the camera required for the system. Some results obtained using a reduced-scale prototyping of the system are presented. Finally, an outlook to future works is given.
Keywords :
computerised monitoring; image motion analysis; traffic information systems; 3D scene structure; background modelling; daytime fog; daytime visibility range monitoring; moving object filtering; region of interest; road meteorology standard; roadside camera-based system; visibility reduction; Detection algorithms; Filters; Intelligent vehicles; Layout; Meteorology; Monitoring; Prototypes; Road vehicles; Smart cameras; Vehicle detection;
Conference_Titel :
Intelligent Vehicles Symposium, 2008 IEEE
Conference_Location :
Eindhoven
Print_ISBN :
978-1-4244-2568-6
Electronic_ISBN :
1931-0587
DOI :
10.1109/IVS.2008.4621200