The comparison of 3D reconstruction by SfM/MVS for various GCPs arrangement

Abstract

The rules for operating specifications were amended in 2020, and are now allowed to be officially used as guideline for achieving stable accuracy using UAV surveying. In general, 3D reconstruction by UAV is performed using SfM/MVS software, but to achieve high-accuracy of 3D reconstruction stably, it is desirable to have as many GCPs placed in the right position. However, arrangement of GCPs is hard work and time-consuming, and therefore it is desirable to achieve accuracy goals with fewer GCPs. This paper describes the comparison of 3D reconstruction by SfM/MVS for various GCPs arrangements using UAV test site.