Laser scanning has gradually become a standard method for digitizing terrain in 3D. Field has been leading the way as the first company in Nordics to start with airborne and later car-borne laser scanning.
An advanced laser scanner achieves the measurement by sending out light waves reflected to the sensor. In advanced processing, returns are assembled into a 3-dimensional point cloud. The number of points per square meter will vary from one point up to over 100 points depending on how high you fly.
The advantage of airborne laser scanning is that you can get excellent documentation of the terrain, even in areas with a lot of vegetation. This allows the method to calculate a terrain surface with substantially greater accuracy and reliability than other techniques. The point cloud is further processed by separating different objects such as terrain surfaces, vegetation, buildings, and power lines.
Our popular terrain model product (DTM) is valuable for designing new infrastructure such as roads, railways, and power lines. It can also calculate mass transfers and costs between clients and contractors. We also make surface models (DSM) that include vegetation, buildings, and other useful objects; for example, noise calculations and visibility analysis.
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Field has a history of aerial surveying dating back to the 1950s. We offer high-quality sensor services that deliver accurate data for digital products and decision making. Our unique competency and our fleet of ultramodern aircraft and sensors can meet even the most challenging project requirements. We have our own line of unmanned aerial surveying systems and also partner with local service providers worldwide. Explore more Field Aerial Surveying services below.