利用DEM的自适应航线设计方法
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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.
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.
引文
[1]朱武,严荣华.基于DEM的航空摄影技术设计方法[J].测绘科学,2002,27(4):42-44.
[3]孔祥元,郭际明,刘宗泉,等.大地测量学基础[M].武汉:武汉大学出版社,2005.
[3]张剑清,潘励,王树根,等.摄影测量学[M].武汉:武汉大学出版社,2009.
[4]王东亮,万幼川.基于DEM的机载LiDAR航线设计[J].测绘科学,2011,1(1):16-19.
[5]谭国成,范业稳,司顺奇.基于DEM地理坐标系下航空摄影技术设计[J].测绘科学,2008,33(02).
[6]李飞,储美华,戴强华,等.基于GPS和GIS的航空摄影测量飞行管理系统关键技术研究[J].测绘科学2005,30(6):38-39.
[7]严荣华,朱武.基于DEM的航空摄影技术设计系统的建立与应用[J].测绘通报,2003,07(2).
[8]谭成国,范业稳,司顺奇.基于DEM的地理坐标系下航空摄影技术设计[J].测绘科学,2008,25(7):34-35.
[9]李征航.GPS测量与数据处理[M].武汉:武汉大学出版社,2005.
[10]刘基余.GPS卫星导航定位原理与方法[M].北京:科学出版社,2009.
[3]孔祥元,郭际明,刘宗泉,等.大地测量学基础[M].武汉:武汉大学出版社,2005.
[3]张剑清,潘励,王树根,等.摄影测量学[M].武汉:武汉大学出版社,2009.
[4]王东亮,万幼川.基于DEM的机载LiDAR航线设计[J].测绘科学,2011,1(1):16-19.
[5]谭国成,范业稳,司顺奇.基于DEM地理坐标系下航空摄影技术设计[J].测绘科学,2008,33(02).
[6]李飞,储美华,戴强华,等.基于GPS和GIS的航空摄影测量飞行管理系统关键技术研究[J].测绘科学2005,30(6):38-39.
[7]严荣华,朱武.基于DEM的航空摄影技术设计系统的建立与应用[J].测绘通报,2003,07(2).
[8]谭成国,范业稳,司顺奇.基于DEM的地理坐标系下航空摄影技术设计[J].测绘科学,2008,25(7):34-35.
[9]李征航.GPS测量与数据处理[M].武汉:武汉大学出版社,2005.
[10]刘基余.GPS卫星导航定位原理与方法[M].北京:科学出版社,2009.
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