LiDAR Scanning

LiDAR, short for "Light Detection and Ranging," works by emitting pulses of light and measuring the time and intensity of the reflections from the ground or structures. This technology has evolved rapidly, transforming drones from simple gadgets into specialized surveying tools. Our advanced sensors and drones are revolutionizing the surveying industry, using photogrammetric methods to create highly accurate models and detailed spatial data.

The most cited advantage of using LiDAR for mapping is its high level of accuracy. However, that alone doesn’t tell the full story.

It’s important to define what accuracy means in the context of your project. Are you focused on relative accuracy, where features are precise in relation to one another, or absolute accuracy, where features are correctly positioned in relation to their true geographic coordinates?

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LiDAR is the preferred method for achieving absolute accuracy and is typically the best option when the objective is to produce a realistic bare earth model. This is because LiDAR excels at capturing elevation and filtering out vegetation and surface obstructions.

​By integrating LiDAR data with GNSS positioning and utilising direct measurement—through thousands of laser pulses emitted from above—it’s possible to produce digital terrain models with centimeter-level vertical and horizontal accuracy.