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3D Laser Scanning is a technology that captures real scenery into a 3D
virtual word. This technology has been widely used in reverse engineering
and quality inspection. The application of this technology on large objects,
such as buildings and bridges, provides a whole new perspective to
surveying and data collection.
Since 2001, Dynasty Group, Inc. has been researching and applying this
technology on many architectural and engineering projects. With our
strong background in surveying, the firm has successfully used 3D Laser
Scanning Technology in the following areas:
- Transportation Engineering
- Building and Site Development/Historic Documentation
- Municipal Facilities
- Industrial Plants
3D Laser Scanning Technology uses Laser Triangulation, a precise method
of 3D data acquisition. A laser beam is deflected from a mirror onto the
scanning object. The object scatters the light, which is then collected by a
sensor located at a known triangulation distance from the laser. Using
trigonometry, 3D spatial (XYZ) coordinates of surface points are calculated.
With motors rotating the scanner horizontally and the mirror vertically, the
3D laser scanner records thousands of points per second. This is referred
to as a point cloud.
There are many challenges is using 3D Laser Scanning Technology on
large objects. One of them is the ability to register the scans together. To
scan a building, it usually takes several scans to several hundred scans to
cover the project area. The accuracy of each scan is limited by the type of
scanner, usually dictated by the manufacturer. However, the accuracy of
the whole project depends on the operators’ proficiency in collecting and
processing the data.
Dynasty Group, Inc. has established its leading position in providing 3D
Laser Scanning services. This is not only based on our knowledge and
experience in 3D Laser Scanning, but also on our expertise in architecture,
engineering, building information modeling, and the innovative approach
we take to manage our projects.
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