Finally, the user visually explores an airborne LiDAR scan of a region south of Sacramento, and evaluates an accidental levee breach by extracting a ground plane and visualizing the elevation of data above that plane. The user then fits cylinders to both parts of the mismatch to measure its exact extent. Next, the user assesses the quality of a LiDAR scan of a geothermal pipe by looking for misalignments between individual LiDAR scans. Then the user measures a small feature (an air duct), and fits a cylinder to that feature by interactively selecting points on its surface. First, the user visually explores a LiDAR scan of the UC Davis Mondavi Center for Performing Arts. (MPEG-1, 61MB) Movie showing basic navigation and LiDAR data analysis. Click each still image to download the full movie in MPEG-1 format. Stereo projection was disabled to minimize flickering in the movies, and the person in the CAVE did not see the 3D models from the correct point of view. All movies were captured with a tripod-mounted or hand-held video camcorder and show the 3D data displayed in the CAVE from the camcorder's point of view. The following movies show the LiDAR visualization and analysis software used in the UC Davis KeckCAVES VR environment.
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