Abstract
This paper presents a detection method of road marking using Laser Range Finder (LRF) intensity of surface for getting the road traffic information. Many studies of road signs and road marking detection method have been mainly using an optical camera. However, sometimes an optical camera cannot get effective image because it is affected by ambient light. On the other hand, intensity of LRF is hardly affected by those conditions. For this reason, road surface texture images are made by LRF refractive intensity of surface. The type of road marking was identified by a simple template matching from this image. As a result of the paper was that the present method detected road marking of "止まれ" with high accuracy when the velocity of the vehicle was 30 km/h or less. The detection rate of the speed limit signs on public roads was about 92% and the pedestrian crossing warning sign was about 87%.
