UAV とSfM-MVS で高解像度地形情報を取得する際の運用最適化に関する検証

抄録

Recently, topographic surveying using UAV and SfM-MVS has been attracting attention. These have made it possible to obtain DSM (Digital Surface Models) with a high time and spatial resolution. In this study, we will attempt to prove the work efficiency of surveying conducted using the UAV/SfM-MVS system. The results demonstrated that DSM resolution is only affected to flight altitude, provided that the parameters of the SfM software aren’t changed. In advance, it is necessary to predict the desired resolution and conduct a UAV flight. The position of the GCP has the most significant effect on the accuracy of the DSM. GCP influences the assumed position of camera shooting as estimated by SfM. When giving the GCP, in order for the object to be interpolated it is desirable to give the highest and lowest points of what you want to be captured. In the future, it is necessary to aim for improved efficiency in surveying methodology through further experiments and improved understanding of the principles of SfM-MVS software.