Status survey method of uninhabited islands based on tilt photogrammetry
In order to efficiently obtain basic surveying and mapping data for uninhabited islands,this article adopted unmanned aerial vehicle(UAV)-based tilt photogrammetry without image control to survey and draw uninhabited islands.Through experimental data,it can be concluded after three-dimensional(3D)real scene modeling without image control,the maximum error at the checkpoint plane position is 17.57 cm,with a mean square error of 13.83 cm.The maximum error in elevation is-17.63 cm,with a mean square error of 11.54 cm.These results satisfy the corresponding accuracy requirements for digital line graphics of 1∶500 scale.It can be seen that UAV-based tilt photogrammetry without image control can play an important role in the basic surveying and mapping of uninhabited islands while ensuring measurement accuracy.
unmanned aerial vehicle(UAV)tilt photogrammetrywithout image controluninhabited islandsurveying and mapping