Fast Orientation of Video Images of Buildings Acquired from a UAV without Stabilization.
Fast Orientation of Video Images of Buildings Acquired from a UAV without Stabilization.
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DOI：
10.3390/s16070951
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发表时间：
2016-06-23
期刊：
影响因子：
--
通讯作者：
Delis P
中科院分区：
文献类型：
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作者：
Kedzierski M;Delis P
本研究的目的是评估对视频图像进行绝对定向程序的可能性，其中第一张图像的外部定向是航空摄影测量的典型，而第二张图像的外部定向是陆地摄影测量的典型。从共线性方程出发，假设摄像机倾斜角度为90°，提出了简化的数学模型。该方法可根据一组图像的共线性方程确定点的X、Y、Z坐标。使用简化的共线性方程可以大大缩短无人机（uav）图像数据的处理时间，特别是在低成本系统中。所进行的实验表明，使用倾斜85°-90°（或ω）的相机和简化的共线性方程，可以完成建筑结构的完整摄影测量项目。得出了无人机的速度与摄像机倾斜角度与实际倾斜角度之间存在相关性的结论。
The aim of this research was to assess the possibility of conducting an absolute orientation procedure for video imagery, in which the external orientation for the first image was typical for aerial photogrammetry whereas the external orientation of the second was typical for terrestrial photogrammetry. Starting from the collinearity equations, assuming that the camera tilt angle is equal to 90°, a simplified mathematical model is proposed. The proposed method can be used to determine the X, Y, Z coordinates of points based on a set of collinearity equations of a pair of images. The use of simplified collinearity equations can considerably shorten the processing tine of image data from Unmanned Aerial Vehicles (UAVs), especially in low cost systems. The conducted experiments have shown that it is possible to carry out a complete photogrammetric project of an architectural structure using a camera tilted 85°–90° ( or ω) and simplified collinearity equations. It is also concluded that there is a correlation between the speed of the UAV and the discrepancy between the established and actual camera tilt angles.