LiDAR

Light Detection and Ranging (LiDAR) is a remote mapping technique that uses light pulses fired several hundred thousand times per second from a LidarPod® to survey the environment.

When these light pulses bounce off surrounding objects and return to the sensor, the time taken for each pulse to return to the sensor is used to calculate the distance travelled (range). This process is repeated to collect LiDAR data (point-clouds) and generate a 3D, visual representation of the surveyed environment.

For more information, see "LiDAR data".

Information

Each light pulse corresponds to a point with 3D coordinates.

A LidarPod® consists of the following:

  • A rotating scanner head

  • A GPS receiver

  • Rear features that process and store data collected by the LidarPod®

The primary objective of Purepoint is to visualize point-clouds and decrease the number of points to enable ease of further processing. For example, 100,000,000 points can be reduced to 40,000 points required for processing.