The first maps on record that took advantage of an aerial perspective were sketched from the deck of a hot air balloon under the auspices of the Civil War’s Union Army Balloon Corps. Aerial reconnaissance exercises took place regularly during the American Civil War and creating a rough map was strategically key. The first methods
Out with human surveying teams slogging across a project site to map a floodplain and in with slick UAV (unmanned aerial vehicle or drone) performing photogrammetry and collecting millions of elevation points in a matter of minutes. With the growing sophistication and cost-efficiencies of UAVs, the technologies of photogrammetry
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