LIDAR – Light Detection and Ranging, is a survey method which allows measuring points in the 3-dimensional space. It is a remote sensing method which can be used to examine the surface of the Earth.
It allows scientists and mapping professionals to scrutinize both natural and manmade environment precisely and accurately and with flexibility. LiDAR mapping, at times referred to as ‘3D laser scanning’ is commonly used as a technology to make high-resolution maps, with applications in geodesy/geomatics, with terrestrial, airborne & mobile mapping methods. LIDAR is being used by NOAA scientists to procure more accurate shoreline maps, make digital elevation models to be used in geographic information systems, to assist in emergency response operations, and in many other applications.
Mobile LIDAR is a leading mapping solution that embodies the most progressive LiDAR sensors, cameras and position/ navigation/ DGPS receivers to gather survey grade 3D point cloud data quickly and precisely.
The process where geospatial data is collected from a mobile vehicle, typically fitted with a LiDAR remote sensing systems is called Survey Grade Mobile LiDAR mapping. Such systems comprises of complete array of time synchronized navigation sensors (survey grade DGPS) and imaging sensors mounted on a mobile platform. The primary output derived after pre-processing from such systems include; geo-referenced 3D point cloud data, digital maps, images and videos. The total accuracy of the data which can be easily achieved is about +/- 2 .