ROAD IMAGE SEGMENTATION METHOD BASED ON HEURISTIC EDGE TRACING

A road image segmentation method is presented. First, an intelligent highpass filter is used to preprocess the road image to delete the effect of noise, and meanwhile retain the edge points. Then a gradient operator is used to detect edge points and an edge image can be obtained. On this image, all of boundaries are traced out by heuristic edge tracing method. Finally, according to the feature of length and smoothness of road boundaries. a post-processing is carried out. The results of the experiment are satisfactory.