High Definition Surveying

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High Definition Survey (HDS) is becoming an industry standard for surveying projects. Historically, the costs involved with these surveys were very high, limiting its use to only larger projects. But today, advancements in technology have made high definition surveys a viable option for projects of all sizes. HDS allows ELR surveyors to acquire vast amounts of data positions quickly. Here's how it works: A narrow beam of pulsed laser moves across the target recording an unprecedented number of measurements in minutes. These scanned measurements are then displayed on a computer screen in the form of a “point cloud” which closely approximates a 3D model. The point cloud resembles a digital picture of the project.

 

• Provides an ultra-fast, highly accurate alternative to traditional “as built” documentation.
• ELR uses Leica ScanStation 2 3D-laser scanning technology to capture and use high-definition spatial datasets ("point clouds.") for detailed, as-built and engineering surveys. This “intelligent pixilization” is widely applicable to civil, architectural, and facility projects.
• 3D laser scanning or high-definition surveying is useful as as a highly efficient way of collecting "point cloud" data for any survey application.
• 3D laser scanning minimizes return visits to the project site because all visble data can be safely captured with one visit.
• It includes value added attributes not found in conventional survey techniques.  The advanced capabilities of ELR’s 3D laser scanning system include 360º horizontal field-of-view (FOV), 270º vertical FOV, and a high-resolution, internal color camera that enables calibrated image overlays of the scanned scene. For a full 360° x 270° scan, the images alone represent >64 mega pixels of spatially rectified, true-color image data.
• 3D laser scanning or high definition surveying accuracy is 5mm at 100m; 2.0mm Standard Deviation for targets and modelled features.
• Precise 3D detail created with the speed of light.

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