摘要
利用遥感技术进行工程预选址,能够克服困难地区交通不便、环境恶劣等困难,但使用商业遥感影像成本较高,借助Google Earth提供的坐标信息,以及开放网络资源提供的高分辨率遥感影像进行工程预选址能够达到事半功倍的效果。文中利用Google Earth进行二次开发,获取某区域的三维坐标点集,建立数字高程模型。在此基础上,叠加影像制作该区域三维场景,并结合该区域遥感地质解译等相关资料,在三维场景中进行综合分析,实现工程预选址。实验表明,在三维场景中进行选址分析更直观、真实,选址工作更具有针对性,可缩小感兴区范围,节省大量时间。
Preliminary site selection of projection by using remote sensing technology can overcome some problems：such as traffic inconvenience and poor environment in difficult area.But,the cost of using commercial remote sensing image is high.Preliminary site selection of projection can achieve a better result by using the coordinates provided by Google Earth and the high-resolution remote sensing image provided by available network resources.A secondary development based on Google Earth is made to obtain threedimensional coordinates set in a certain area and set up a digital elevation model.On this basis,overlapped images are used to form a three-dimensional scene for this region.Combined with the related materials from the remote sensing image by geological interpretation in the area,a comprehensive analysis is made on the three-dimensional scene in order to realize the preliminary site selection of projection.The practice shows that site selection in the three-dimensional scene is more realistic,and the work of site selection is more targeted which can narrow the interesting area and save much time.
出处
《测绘工程》
CSCD
2014年第1期61-64,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41201440/D010702)
关键词
GOOGLE
EARTH
数字高程模型
遥感地质解译
三维场景
预选址
Google Earth
digital elevation model
geological interpretation of remote sensing
three-dimensional scene
preliminary site selection
