Abstract
Comparison of UAV Image and UAV LiDAR for Construction of 3D Geospatial Information
Highlights
The results suggest that this method can be used in the production of digital maps by verifying that the digital surface model (DSM) generated using Unmanned aerial vehicles (UAVs) images has an accuracy of about 8 cm
The accuracy of the DSM generated using UAV light detection and ranging (LiDAR) data was approximately 5 cm compared with the reference data
The DSM was generated using UAV LiDAR data, and each characteristic was analyzed in comparison with that of the DSM generated using UAV images
Summary
Geospatial information is an integral part of human life beyond the level of transmission of location information, and spatial information technology is evolving and developing into one that is tightly linked to life, thereby changing the lifestyle of individual human beings beyond the provision of various types of information.[1,2] Recently, local changes in national territory and landscape have been occurring very frequently owing to rapid economic development, industrial structural changes, urban expansion due to development, and abnormal weather phenomena.[3,4] These changes cause great problems in the efficient management of national territories and cities and in providing the latest spatial information required by industries and in certain social activities.[5,6] Unmanned aerial vehicles (UAVs) can be used from time to time to acquire regular photos of various scales depending on flight altitude, as well as various types of image information such as oblique photographs and videos, which can be used very effectively.[7,8] Such data can be useful for construction sites.
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