LiDAR Data Collection | Exploring Different Techniques
LiDAR data can be collected using different methods specified below.
Airborne Lidar is a remote sensing technology that uses a laser scanner mounted on an aircraft or helicopter to collect data about the Earth's surface. The laser scanner emits laser beams that reflect off the ground and other surfaces, and the reflected signals are detected by the scanner. The time taken for the laser beam to travel to the ground and back to the scanner is used to calculate the distance between the scanner and the surface. The scanner records these distance measurements as a series of 3D point clouds that represent the shape and elevation of the Earth's surface.
Airborne Lidar is widely used in various applications, such as mapping and surveying, forestry management, geology, archaeology, urban planning, and disaster management. The advantage of airborne Lidar is that it can rapidly collect highly accurate 3D data over large areas, even in areas with rugged terrain or dense vegetation cover. Additionally, the data collected can be used to create high-resolution digital elevation models, 3D models, and maps, which can be used for analysis and visualization purposes.