Active Net control for traffic signs detection

In this paper, we propose a method for detecting a traffic sign from a scene image in the daytime. This method uses Active Net in two steps. Active net is a deformable lattice network model which minimizes an energy function to detect the region of a target object. In the proposed method, the first Active Net roughly estimates a position of a target region For the better target detection, we put the second Active Net around the estimated position. However, since the number of the iteration of Active Net is fixed, an unnecessary computation is performed in the method Therefore, a method to exclude unnecessary computation by automatic stopping of Active Net is also proposed. Experimental results show the effectiveness and efficiency of the proposed method.