Method for detecting visual barrier for driving safety

The invention relates to a method for detecting a visual barrier on a road for driving safety, which belongs to the technical field of computer application. The method comprises the following steps of: acquiring a front road surface, extracting angular points in the image and primarily estimating the barrier by using a light stream and an K mean value to obtain the candidate central position and size of the barrier by a camera on an automobile; and excluding an area of which the movement speed in the preceding results is not reasonable by a frame difference-based movement history blanking method to obtain a more robust barrier center, combining the results of two methods to calculate, and taking an area boundary around the confirmed barrier center as the boundary of each barrier. By using a common camera, the method is simple, has low cost, and has the advantages of high calculation speed, relatively high stability and strong environment adaptiveness.