Terrestrial LiDAR / 3D Laser Scanning
LiDAR (Light Detection and Ranging) is a remote sensing
method that uses light in the form of a pulsed laser to measure distances to objects.
LiDAR systems provide superb detail by collecting millions of measureable survey points in minutes. LiDAR provides excellent value as it fast, accurate, and safe, allowing data to be gathered in areas that are too dangerous to be surveyed by conventional survey methods.
LiDAR systems provide a critical means of documentation and preservation of evidence which are critical components of forensic investigations.
The emitted beam of light is reflected from the first surface it encounters back to the laser scanner that records the distance and angle of pulse.
The result is a dense, detail-rich group of elevation points called a
point cloud. Each point in the point cloud has three-dimensional spatial coordinates (latitude, longitude, and elevation) that correspond to a particular point on an object's surface from which a laser pulse was reflected.
Individual point clouds gathered from different locations by a
terrestrial laser scanner can be“stitched” together to form one, cumulative point cloud in a process known as registration.
The registered point clouds can be used to generate other geospatial
products such as digital terrain models and surfaces from which building models, steel and piping models, volumes, and elevation contours can be accurately determined.
Have Questions? Ask Us
For more than ten years, CBC Geospatial personnel have successfully employed terrestrial LiDAR surveys for forensic investigations, engineering design, and detailed as-builts in: