无人机遥感在第三次国土调查中的应用实验

Application Experiments of UAV Remote Sensing in the Third Landsurvey

为研究第三次国土调查中无人机遥感影像的应用,结合具体工程,在贵州地区进行了实验。通过研究得出如下结论:(1)用无人机遥感影像室内解译地类的精度远远高于用卫星遥感影像室内解译地类的精度;(2)在山区,由于地面起伏比较大,无人机遥感影像的精度并不均匀,地类判读的差错率依然较高;(3)无人机用于国土调查难以代替外业实地核实。

In order to study the application of UAV remote sensing images in the third national land survey,this study combined specific projects and carried out experiments in Guizhou.The following conclusions were drawn from the study:(1)the accuracy of land classes with UAV remote sensing images was much higher than that with satellite remote sensing images;(2)In mountainous areas,the accuracy of UAV remote sensing images was not uniform due to large ground undulations,and the error rate of land class interpretation was higher;(3)It is difficult for UAV to completely replace field verification in land survey.