3D laser scanning is a non-destructive technology that uses laser light to capture the shape and dimensions of a building. The scanner projects lasers onto the surfaces and objects and bounces laser light back to the scanner’s sensor. The scanner measures the time it takes for the laser pulses to return, calculating the distance between the scanner and each point on the object’s surface. As the scanner is moved to different positions throughout the space, each measured point is converted into a 3D coordinate (x, y, z), creating a “point cloud” of data. 3D laser scanning offers several advantages, including high accuracy, speed of data collection, and the ability to capture complex geometries that would be difficult to measure using traditional methods.
Using our professional-grade equipment, laser scanners can achieve accuracy down to the millimeter level, often capturing data points with 0.3-2mm precision. Proficiency with the scanning equipment and associated software leads to more efficient and accurate data collection and processing. Our experienced technicians understand how to optimally position one or more scanners, choose appropriate scanner settings, and select scan locations that will result in the most comprehensive and accurate data capture When executed properly, 3D laser scanning offers superior accuracy and detail compared to traditional methods, especially for complex structures or large areas.
We gather billions of points and use point clouds to create geometrically true representations of existing conditions.
Processing the Data
The surveyor’s skill in registering the individual scans together is crucial for achieving high accuracy in the final point cloud. While individual scan points can be precise (manufacturers claim accuracy down to 0.3mm), maintaining accuracy in the final registered point cloud’s accuracy depends on the technician’s skill level. Additionally, the ability to interpret the point cloud data and produce accurate CAD drawings and Revit models adds another layer where skill impacts overall accuracy.
The resulting 3D model can be used for various applications, including:
By providing highly accurate, comprehensive, and easily shareable data, laser scanning adds enormous value.
3D laser scanning has been shown to reduce data collection times by up to 50% compared to traditional surveying techniques.
Laser scanning captures millions of data points per second, providing incredibly rich and precise detail of objects, buildings, or environments. This level of accuracy surpasses traditional measurement methods. A single scan can capture everything within line of sight up to 1,000 meters in a full 360 degrees. This comprehensive data collection helps answer unanticipated questions without requiring additional site visits.
The speed of data collection reduces project timelines and minimizes the need for revisits to the site. The quick and non-intrusive nature of laser scanning minimizes or eliminates operational shut-downs and client inconvenience, particularly valuable for projects in active facilities. This efficiency translates to cost savings, especially by reducing change orders and construction delays.
Laser scanning can be applied to various fields, including construction, engineering, architecture, historic preservation, and facility management, making it a versatile tool for many industries. Additionally, laser scanning is non-contact and can be performed from a distance, allowing for data collection in hard-to-reach or hazardous locations without putting workers at risk.
Laser scanning allows for flexible, customized 3D modeling, where only necessary elements are modeled to the required level of detail. This approach can help control costs by focusing on project-specific needs. For example, point cloud data can be integrated into BIM software to create or update building information models or could be used as documentation of historical structures and artifacts for conservation efforts.