LiDAR (Light Detection and Ranging)
What is LIDAR?
LIDAR (Light Detection and Ranging) is an emerging technology that rapidly provides an accurate 3D point cloud of a target feature or surface. In airborne LIDAR systems, powerful lasers, kinematic GPS, and inertial measurement units (IMUs) synergistically enable the collection of mass elevation points representing rooftops, tree branches, detailed drainage patterns, and many other elements of the landscape. LIDAR is often an effective option for collecting highly valued ground elevation data when compared with in situ surveying or photogrammetric mapping techniques.
High Density Survey (HDS) Research
A related technique (often called terrestrial laser scanning, terrestrial LIDAR, or high density survey) involves the use of a similar device but, commonly, on a fixed tripod. For information on CAST work on this click here.
Center for Advanced Spatial Technologies
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