Engineering Geologic Mapping Using 3D Imaging Technology

摘要

The Space Dynamics Laboratory, Utah State University and Lidar Pacific Corporation are developing an airborne sensor specifically designed to acquire 3D multispectral imagery. A ground-based system is currently being used to experiment with 3D image acquisition and exploitation. This lidar-based system has a range accuracy of 1-2 cm and a spatial resolution of 2.5 mrad in the field of view and a maximum range of 400 m. A digital camera that couples to the lidar has a spatial resolution of 0.25 mrad and is fused directly into the lidar data. A sample of this experimental data acquired for a mountain side in Logan Canyon near Utah State University is presented along with a discussion on the potential uses of this data in geological engineering.