LiDAR Mapping
LiDAR, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure distances to the subject.
These light pulse measurements combined with positional, motion, heading and precise timing generate accurate, high resolution three-dimensional information on the landscape.
We own and operate UAV mounted LiDAR and mobile LiDAR mapping systems from vehicles and boats.
Our LiDAR systems are integrated with high-end Applanix inertial (INS) navigation systems.
To increase data accuracy, RINEX PPK files are recorded and post-processed within Applanix POSPac software to solve GNSS ambiguities, position and orientation of the survey vessel/UAV. These processed SBET files are then referenced with the laser sensor to produce very accurate spatial data-sets.
Our LiDAR systems are used to collect high density data-sets in a single pass much faster and more cost effective than traditional survey techniques. The LiDAR system can collect 300,000 points per second flying at an altitude of around 40m at a speed of 15km/hr.
LiDAR technology has the capability to penetrate tree canopies and vegetation to accurately map the ground beneath.
Imagery showing tree areas and hedge lines.
Imagery overlain with coloured height band UAV LiDAR.
Imagery showing LiDAR coverage of tree canopy and extents of penetration to ground level
Plan view of LiDAR point coverage
LiDAR data extract used for flood mapping works
UAV LiDAR data intensity dataset
UAV LiDAR data intensity dataset from power cable pylon
Applications
Large Area Mapping
Coastline Mapping
Overhead Power Line Management Surveys
Flood Plain Mapping
Forestry Management
Quarry & Landfill Surveys
Archaeology
Reflectivity / Intensity Classification & Analysis
