Orthophoto
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An orthophoto, orthophotograph, orthoimage or orthoimagery is an aerial photograph or satellite imagery geometrically corrected such that the scale is uniform: the photo or image follows a given map p
Aerophotogrammetry, orthophoto from drone, Città Alta, Bergamo, Italy
Orthophotomap of Oviedo city center, Spain
Aerial orthorectified image of a mine for volumetric measurements in stock pile reporting
Digital elevation model
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A digital elevation model or digital surface model is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid. A "gl
Orthophoto
…as the latter may accurately locate a number of points on each image but stretch the area between so scale may not be uniform across the image. A digital elevation model (DEM) or topographic map is required to create an orthophoto, as distortions in the image due to the varying distance between the camera/sensor and…
MOLA digital elevation model showing the two hemispheres of Mars. This image appeared on the cover of Science magazine in May 1999.
Gatewing X100 unmanned aerial vehicle
Digital Elevation Model – Red Rocks Amphitheater, Colorado obtained using a UAV
Bezmiechowa airfield 3D Digital Surface Model obtained using Pteryx UAV flying 200 m above hilltop