无人机摄影测量中相机的检校及应用

Calibration and Application of Camera in UAV Photogrammetry

无人机搭载的非量测数码相机需要定期检校,文章根据三维直接线性变换(DLT)检校方法,编程生成了三维DLT相机检校程序,基于三维控制场完成了非量测数码相机的检校和精度分析,并基于大比例尺摄影测量的生产实践(1:2000 DOM)完成了检校结果的应用分析。三维DLT检校程序能够保证相机检校结果的精度,具有良好的可靠性和实际应用性;能够减少相机定期检校的开支,带来一定程度的经济效益。

The non-metric digital camera carried by the UAV needs to be checked regularly, this paper programs and generates 3D-DLT camera calibration program according to the 3D-DLT(direct linear transform) calibration method. It completes the non-metric digital camera calibration and accuracy analysis based on the 3D control field, and completes the application analysis of calibration results based on production practice(1:2 000 DOM) of large-scale photogrammetry. The 3D-DLT program can ensure the accuracy of camera calibration results, and it has good reliability and practical application. It can reduce the cost of regular camera calibration and bring a certain degree of economic benefits.