What is 3D Laser Scanning?
Laser scanning usually refers to a survey undertaken using a terrestrial laser scanner. These devices use LiDAR (Light Detection and Ranging) to measure a space, emitting millions of pulses of laser light and combining the subsequent data on distance and angle to capture highly accurate spatial data on its surroundings. The result is a point cloud – a three-dimensional representation of the surveyed area. The point cloud can then be used to create a number of deliverables, including CAD drawings and 3D models in a number of formats, including Revit, which can then go on to form the basis of a BIM (Building Information Modelling) model.
Scanners are often stationary, but are also increasingly seen to be person or vehicle-mounted to capture continuous data whilst in motion. They are particularly useful for capturing data on complex buildings due to their high levels of accuracy, rapid data collection, and rich data output.
When do I need 3D Laser Scanning?
A survey using a 3D laser scanner is appropriate whenever detail needs to be captured to a high level of accuracy. 3D laser scanners excel in measured building survey work, but can also be deployed for use in topographical surveys. Scanners are especially helpful when speed is of the essence. LiDAR scanners attached to backpacks, drones, or other vehicles can accurately capture data on large areas very quickly, although not to the same levels of accuracy as a terrestrial scanner such as the Leica RTC 360.
Case study: Birmingham University
3D Laser Scanning deliverables
A 3D scanner produces a point cloud from which we can produce:
- CAD plans
- Revit models
- Orthomosaics
- 3D Mesh models
- LGS files with black and white or colour imagery
Why choose Interlocks for 3D Laser Scanning
Affordable LiDAR scanners have revolutionised the surveying industry. They have drastically increased the speed and accuracy with which an asset can be measured. However, experience and theoretical expertise are still crucial in interpreting data and delivering an accurate measured survey. The depth and breadth of experience at Interlocks, along with our RICS regulation, means there is a great deal of thought behind the application of this technology – ensuring the best results, and the best prices for our clients.
