交通警告标志定位方法研究

Research on Location Method of Traffic Warning Sign

结合交通标志的彩色图像色彩特征和形状特征,在CCD摄像机采集的场景图像中对三角形交通警告标志定位方法进行研究.先利用RGB到HSV的彩色空间转换和阈值分割将交通标志区域信息增强,然后利用边缘检测提取交通标志的三角形形状特征,并对三个顶点进行准确检测,最后通过直线拟合的方法用三条红色直线标示交通标志的精确位置.实验结果表明,应用上述综合设计能对图像中的三角形交通标志进行准确定位和位置标示.

Combined color feature with shape feature of traffic signs, the location method of triangle traffic warning sign was studied. The traffic warning signs were in scene images obtained by CCD camera. Firstly color space was transformed from RGB to HSV and threshold segmentation strengthened the region of traffic signs, then three apexes of traffic signs were located correctly with edge detection of triangle shape feature. Finally three colored straight lines were drawn to mark the position of traffic signs based on fitting line method. The experiment results show that the application of synthesis design above can locate triangle traffic signs and mark their position accurately.