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This week, the nationally syndicated Mark Trail comic strip discussed aerial LiDAR. This very simple overview is fun to see in a national newspaper. One point to correct would be that LiDAR does not penetrate objects. As ranging lasers pass through a tree canopy, some will strike leaves and offer a"first return" at the height [...]
Is it possible to use an aircraft instead of a team of earthbound inspectors to check a gas line for leaks? Last week Seiler Instrument was in Illinois demonstrating how it's possible to get off the ground and examine hundreds of yards of gas line in minutes using the Microdrones MDtector. This aircraft uses a [...]
Are Drones Accurate? - For the common photogrammetry workflow, surveyors can count on accuracy of between 1 and 3 times the ground sample distance within the imagery collected by the drone. This is to say 1-3x the distance between the center of each neighboring pixel in the image, with typical processing software – so [...]