基于Hough变换的高分辨率遥感影像城市直线道路提取

Urban Straight Road Extraction from High-Resolution Remote Sensing Image Based on Hough Transform

根据高分辨率遥感影像城市直线道路特性,提出在图像分割获得道路网轮廓的基础上,使用Hough变换检测道路所在直线,对直线进行道路判断,再将所得道路段进行修剪、连接形成道路网,实现道路提取。实验结果表明,该方法能有效的从高分辨遥感影像中提取城市直线道路。

According to the urban straight road character of high-resolution remote sensing image, this paper presents an approach to extract road network. Based on the road network outline from image segmentation, hough transform is used to detect the straight lines, which contain the road information. Judging the straight line whether it is road or not, and get the road sections. After trimming and connection the road sections the road network is formed, thus the road extraction is completed. Experiment re- sults show that this approach is efficient for extracting urban straight road from high-resolution remote sensing image.