LIDAR
What is LIDAR?
Lidar (which stands for Light Detection and Ranging), is a technology that uses laser to measure the positions of elements. Briefly, the lidar emits a laser pulse towards the surface, thereafter the laser is reflected on the surface and returns to the sensor, the laser sensor measures the travel time and calculates the distance between the lidar and the surface. This process is carried out for a large number of points per second. For lidar by drone, this number of points varies between 18,500 and 600,000 points / second.
LIDAR DATA PROCESSING
Unlike aerial photography, a lidar survey allows you to directly obtain a 3D point cloud in just a few clicks. This point cloud can be classified into categories (ground, vegetation, buildings, power lines, etc.), then used to generate different geomatics products. It is possible, for example, to generate a digital terrain model and contour lines from the Ground class. Additional deliverables that can be produced from lidar include:
- Georeferenced, classified and colorized point clouds
- Planimetric and Topo mapping for CAD Applications
- Volumetric calculation
- Digital Terrain and Surface Models
- Digital twin input
- Contour lines
- Canopy height models and tree trunk diameters
WHY CHOOSE Volatus Aerospace?
BECAUSE WE ARE EXPERTS!
The lidar systems we use can transmit and capture between 100 000 and 600 000 points per second. These systems are entirely independent and equipped with GPS receivers and an inertial platform, allowing the precise geolocation of the measured points. They can be installed on an aircraft or on a moving vehicle such as a train or car.
- Absolute precision ranging from mm to cm
- Point density from 50 pt/m2 to 1000 pt/m2
- Data acquisition is possible at night and in shaded areas
- Data acquisition is possible under dense vegetation cover
- Delivery formats compatible with all CAD and GIS software
