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Frequently Asked Questions

Light Detection and Ranging
Lidar — Light Detection and Ranging — is a remote sensing method used to examine the surface of the Earth. … Lidar, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth

Photogrammetry is the use of photography in surveying and mapping. It’s used to measure distances between objects, and photogrammetry software can utilize images to create 3D renderings. While in its early days it was used mostly for topographic mapping, it’s recently been used in a number of unexpected ways.

Unmanned Aerial Photogrammetric Survey is the use of Unmanned Aerial Vehicles (UAVs) to take photos for use in photogrammetry, the science of making measurements from photographs. Instruments manufactured for UAVs could be mounted on unmanned flying platforms of various sizes and types, such as octocopters.

Topographic Maps illustrate elevation with the use of contour lines and spot elevations. Planimetric Maps show features such as roads, buildings, water, fences, vegetation, bridges, railroads.

Classification According to Range and Endurance
This class includes UAVs that have a range of 10 km, endurance time of 20 to 45 minutes, and cost of about $10,000