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UAV Surveying: How Accurate is it?


When considering using UAV surveying, one of the first questions to consider is – how accurate is it? A recent article, “Putting Your Stock in Survey“, published in the February 2014 volume of Geoconnexion International Magazine, posed that question and compared UAV imagery with LIDAR scans to see how they compared when determining stockpile volumes. The result was that the study revealed the high accuracies that can be achieved when measuring volumes with the SenseFly eBee drone.

UAV-Surveying-LIDAR-Comparison

Accuracy of UAV Surveying

After determining how best to compare the two types of measurement techniques, the study compared the volumes calculated with the SenseFly eBee with volumes generated by terrestrial laser scanning. In the end, the comparison study showed that:

“While traditional surveying methods are still an interesting alternative for small surfaces, UAV photogrammetry is unmatched in terms of efficiency for surfaces above several hectares all the while producing equivalent accuracy. In addition, using the UAV surveying method not only produces a DSM but also a geo-referenced, highly detailed orthophoto – an important added value.” – Geoconnexion International Magazine

eBeeThe SenseFly eBee is able to map up to 100 ha in a single 45 minute flight. With its 16MP camera, it can shoot aerial imagery down to 3 cm/pixel resolution and the images can then be used to create maps and elevation models with a precision of 5 cm. The SenseFly eBee delivers outstanding efficiency and cost saving to your business.

SenseFly is based in Switzerland and develops and assembles autonomous mini-drones and related software solutions for civil professional applications such as accurate mapping of mining sites, quarries, forests, construction sites and crops.

To learn more, you can read the entire Putting Your Stock in Survey article here, watch videos and read more about the eBee here, or contact us at info@spatialtechnologies.ca or 1 (877) 252-0070.