摘要
无人机因其体积小、成本低、机动灵活等特点在测绘领域得到了快速的发展,但在测图时,仍然很难满足1∶500比例尺地形图的精度要求。近年来,多视倾斜影像匹配、多视倾斜影像空间解算等新算法为无人机航测更了技术手段。本文以倾斜摄影测量技术为理论依据,解决了无人机影像旋偏角过大和非量测相机畸变等问题,使测图精度达到1∶500比例尺地形图要求。结果表明:倾斜摄影测量技术与无人机相结合可以生产出高精度的地形图数据,扩展了该技术应用的广度和深度。
Benefit by the characteristics such as small volume, low cost, flexible. The UAV has got rapid development in the field of surveying and mapping, however, it is still hard to meet the requirements of the precision of 1 ∶500 map. In recent years, The algorithm of multi-view images matching and space calculating have updated the method on UAV surveying. This research basis on the theory of oblique photogrammetry to solve the rotation angle and camera distortion for meeting the precision of 1 ∶500 map. The results show that oblique photogrammetry combined with UAV can produce high precision of topographic map, in order to expand the breadth and depth in application.
作者
王蒙
WANG Meng(Liaoning Urban ＆ Rural Geographic Information Technology Co.Ltd.,Shenyang 110000,China)
出处
《测绘与空间地理信息》
2018年第11期181-184,共4页
Geomatics & Spatial Information Technology
关键词
倾斜摄影测量
无人机
畸变校正
空三测量
光束法平差
oblique photogrammetry
UAV
distortion calibration
aerial triangulation
bundle adjustment
