利用高速公路禁令标志具有的特定颜色和形状,介绍一种高速公路禁令标志检测和跟踪的方法。检测采用颜色和形状相结合的方法,先将RGB空间转换为HSV空间,利用色调和饱和度融合的方法提取红色,然后利用改进的区域特征参数提取法进行圆形检测并定位。跟踪采用改进的卡尔曼滤波器方法,在图像帧中进行多目标跟踪。对采集的视频实验,取得了较好的检测跟踪效果。实验结果表明,此方法能较准确并快速地检测禁令标志。
This paper described a method for prohibition signs detection and tracking through the specific color and shape of the prohibition signs in highway.The method of combining color and shape was adopted to detect signs.The first step was to convert the RGB space to HSV space and then extracted red color using the method of syncretizing hue and saturation.The second step was to detect circle through the improved method of extracting area feature parameters and located the prohibition signs.It introduced an improved Kalman filter to track multiple targets in the following-up frames.Experiments with captured videos had good effect on detection and tracking.The result shows that the method can detect the prohibition signs accurately and quickly.