A kind of unstructured road detection algorithm which has improved real-time detection and accuracy is introduced.First

the original images are processed by median-filtering

and random noise is suppressed

and an Otsu multi-threshold algorithm is chosen based on two-peak method for rapid image segmentation

the segmentation effect and the segmentation time are optimized;Finally the primary edge detection is carried on with the Canny operator

and mathematics morphology is used to revise

thus obtain the complete and clear path edge image.The simulation result indicates that this unstructured path examination method has good characteristics of timeless and accuracy.