研究从彩色栅格交通地图中提取完整的道路网络集合。在地图规范化的基础上，基于彩色栅格地图上的噪声特征，处理欠识别和误识别的道路点集集合. 以实例说明该方法对道路提取的过程和效果-study from the color grid traffic maps extracted integrity of the road network set. Standardization of the map on the basis of color raster maps based on the noise characteristics, identify and deal with less mistaken identification of the road point Sets. illustrates the method of extracting the road, the process and results