2024 Volume 5 Issue 1 Pages 260-268
The purpose of this study was to confirm the accuracy of 3D topographic point cloud data created by combining smartphone LiDAR and ichimil, a network RTK positioning service, for the purpose of inexpensive and simple creation of 3D topographic models for small-scale earthwork projects. The coordinates of the simplified points were separately measured by ichimil, and these coordinates were added to the 3D point cloud data acquired by smartphone LiDAR. The 3D point cloud data was created by UAV photogrammetry for comparison, and the accuracy of the 3D point cloud data created using both smartphone LiDAR and ichimil was checked against this data. As a result, it was confirmed that the accuracy was within 200mm in both the plane and vertical directions, satisfying the accuracy requirements of the partial payment form survey.
