Automatic detection of road tunnel luminaires using a mobile LiDAR system

This paper describes an automatic method for the detection of tunnel luminaires as well as to easily obtain their 3D spatial location, using colored 3D point clouds. Detection performance was verified by experiments carried on real data acquired with the Lynx Mobile Mapper system in a highway tunnel in southern Galicia, Spain. The method gives promising results after data processing to automatize the detection of luminaires and improve the productivity of tunnel inspections.