利用DEM的自适应航线设计方法  

Adaptive strips design method based on DEM data

作　　者：柳忠伟[1,2,3] 程新文[1] 李英成[2,3] 周桂初[1,2,3] 李英杰[2,3] 

机构地区：[1]中国地质大学(武汉),武汉430074 [2]中国测绘科学研究院 [3]中测新图(北京)遥感有限责任公司,北京100039

出　　处：《测绘科学》2014年第12期143-147,共5页Science of Surveying and Mapping

基　　金：中国测绘科学研究院基本科研业务费项目(7771016);应急测绘航空遥感数据获取关键技术及系列装备研制(2012BAK15B03);高性能航空遥感数据自动处理与加工软件研制(2011BAH12B04);高分综合交通遥感应用示范系统先期攻关(07-Y30A05-9001-12/13)

摘　　要：由于直升飞机需要在第一时间内获取地震、泥石流灾区高分辨率航空影像数据,因此文章提出了一种新的实时相机曝光点设计方案,它可以根据DEM数据、飞行高度、飞行方向、设计重叠度实时自动根据当前曝光点坐标计算下一曝光点的坐标。该方法不但能实现直升飞机自由飞行路线的影像获取,而且能顾及地形起伏对像片重叠度的影响。通过实验表明,该方法设计的曝光点坐标更加科学、更加合理。Because the helicopter needs to get the high-resolution aerial image data of the disaster area such as earthquakes, mudslides at the first time, this article proposed a method that uses the current exposure point coordinates to calculate automatically and quickly the next exposure point coordinate according to DEM data, flight altitude of the aircraft, flight direction, designed degree of overlap. This method would not only meet the needs that helicopter freely flies to acquire images, but also take into account the influence of the undulating terrain on the overlapping degree of the images. Experimental results showed that the exposure point coordinates designed by the method could be more scientific and reasonable than those by regular method.

关 键 词：高斯正算 高斯反算 DEM动态分块 DEM信息检索 基线修改 

分 类 号：P231[天文地球—摄影测量与遥感]