基于高清遥感影像辅助绘制大中比例尺地形图

Aided Drawing High and Medium Scale Topographic Map Based on High Definition Remote Sensing Image

通过Bigmap下载Google Earth高清卫星遥感影像,在影像上选取像控点并实地采集其坐标值,利用新疆基础地理信息数据坐标转换系统对影像进行几何纠正,最后通过影像与AutoCAD的套合叠加结合实地采集到的野外高程数据,完成影像图的矢量化。由于影像的获取较为方便,精确纠正后用于辅助地形图的绘制可以大大提高成图准确性,降低野外劳动强度,提高工作效率。

Download Google Earth HD satellite remote sensing image via Bigmap, Select image control points on the image and collect their coordinate values on the spot. Geometric correction of image based on the coordinate conversion system of Xinjiang basic geo- graphic information data, Using image and AutoCAD overlay and field data acquisition, Complete the image map of the vector. As the image acquisition is more convenient, After the accurate correction, the auxiliary Drawing Topographic Map, Can greatly improve the accuracy of the map, reduce the labor intensity, improve work efficiency.