3D laser scanning technology captures high-density geospatial imagery safely, accurately and swiftly. With 3D scanning every component of reality is captured as data in the scanned image. Post-capture the imagery is drawn up according to the client’s specifications. At Pinpoint Mapping we provide an affordable and precise 3D laser scanning service.
How 3D Scanning Works
A laser contained within the scanner rotates at high speed projecting millions of points of invisible light onto surrounding features. When this light strikes various surfaces it reflects back their individual positions relative to the scanner. Each reflection of light is digitally captured as a “point” recording its dimensions and spatial relationship with other objects. As the scan takes place, a large number of points, known as a point cloud, are acquired. Simultaneously a high resolution camera incorporated into the scanner acquires images of the scanned area. Combining the imagery and point cloud model completes an accurate 3D visualisation of the site or structure.
The applications of 3D scanning are practically unlimited. For example, the technology is deployed into civil engineering, architecture, land surveying and heritage preservation.
to assist with architecture a building can be scanned in order to create a point cloud which serves as the basis for the drawing up of elevations, floor-plans and sections. The position of doors, windows, rainwater systems, chimneys etc. can all be featured in the plans. A 3D point cloud can also facilitate the production of a Building Information Model – often referred to by those in the industry as a ‘BIM” (please see www.pinpointmapping.co.uk/surveying/3DBIM for more info). With further design work the BIM model can be enhanced by adding a true life render to it making it ideal for 3D visualisations and fly-through simulations.
due to the complexity of architectural details, historic buildings can often prove difficult to measure with conventional survey technology. By laser scanning the exterior façade and the interior of the historic building a 3D point cloud of the entire building is produced. The point cloud can then be used to aid in the restoration and preservation of the building.
employing 3D laser scanning for civil engineering developments can be highly advantageous when measuring complex structures such as bridges, pipelines and road tunnels. Not only are there benefits in terms of cost and time-effectiveness, it also improves site-safety – important as we value safety especially where our highly talented surveyors have to contend for example with fast moving traffic on projects related to highway and construction developments.
the benefit of 3D scanning a site for its topographic surface is quite simply more data is captured and nothing is missed within the defined area of interest. Scanning ensures there is no shortage of data: when we receive a subsequent request to update plans with additional features, we reopen the point cloud and the new item is drafted into place.