无人机影像高程信息ArcGIS提取技术

ArcGIS Extraction Technology of UAV Image Elevation Information

无人机技术与数字航空摄影测量的结合已成为航空摄影领域一个新的发展方向。为了提高地质选线的效率,更快速地提取目标区域的高程信息并生成等高线。采用ArcGIS的高程点提取方法以及CASS的数字化成图方法,可以对数字高程模型进行高程点的信息提取,并且利用所提取的高程信息绘制出等高线。利用GIS技术提取目标区域的高程信息,快速地获取了目标区域的等高线信息,有效弥补了传统测绘手段难以满足生产需求的不足。

The combination of drone technology and digital aerial photogrammetry has become a new development direction in the field of aerial photography.In order to improve the efficiency of geological route selection,the elevation information of the target area is extracted more quickly and contour lines are generated.The elevation point extraction method of ArcGIS and the digital mapping method of CASS are ad⁃opted.The digital elevation model can be used to extract the elevation point information,and use the ex⁃tracted elevation information to draw contour lines.Using GIS technology to extract the elevation informa⁃tion of the target area,the contour information of the target area is quickly obtained,which effectively makes up for the insufficiency of traditional surveying and mapping methods that are difficult to meet the production needs.