基于直线包络的交通标志快速定位方法

为了提高快速定位交通标志的准确性,通过对场景中复杂的直线信息以及颜色信息的融合,提出了一种基于直线包络的快速定位交通标志的方法。该方法首先利用颜色信息以及统计直线信息获取目标候选区域,将交通标志进行粗定位,然后利用形态学运算获取连通区域,再利用交通标志的纵横比和内部孔洞信息将交通标志从目标候选区域中准确定位出来。实验表明该方法可以提高交通标志在夜晚等复杂背景中定位的准确性。

A method for fast positioning of traffic signs based on linear envelope

In order to improve the accuracy of fast positioning traffic signs, through the fusion of the complex linear information and color information in a scene, a fast positioning method based on linear envelope was proposed.The method uses color information and statistical line information to obtain the target candidate region for coarse positioning of traffic signs, and then, uses morphological operations to obtain regional connectivity, and uses the traffic sign aspect ratio and the void information to position the traffic signs from the target candidate region.The experimental results show that the proposed method can improve the accuracy of the traffic sign positioning in complex backgrounds like night.