彩色城市地图的闭环反馈道路提取

为了实现彩色栅格地图道路的全自动提取,提出了一种闭环反馈提取彩色栅格地图道路的方法。在地图图像数学模型的基础上,根据地图中对象的颜色特征对地图图像进行规范化处理。在采用一些算法去除噪声后提取道路,对道路进行细化处理。依据道路和噪声的特征建立一些判据判断道路的正确性,把道路的提取变成了根据判据不断修正道路的循环过程,实现道路的全自动提取。试验结果表明了该方法具有较高的准确性、全自动化和通用性。

A Feed Close Loop Road Extraction of Color City Map

This Paper introduces a feedback closed loop method to automatically extract roads from color city maps. Firstly, Based on the math model, the maps are normalized according to color features of the objects on the maps; Secondly, noises are erased and roads are extracted by some methods; Finally, the extracted roads are thinned. And based on the characteristics of the roads and the noises, this paper also establishes several criterions to examine the precision of the roads and mend them if necessary, thus making road extraction a feedback closed loop automatic process. The experiments prove this method to be an efficient method with advantages of precision, automation and broad use.