Digital Orthophoto Quarter-Quadrangle (DOQQ) images are images that have been geometrically corrected so that the distance between two points is the true distance. This means that the image is corrected for whatever angle that the image was taken (away from the normal, incidence angle). Maps of this type are often put into a GIS and are used to make vector data files. The image above is a DOQQ of the Texas longhorn stadium at University of Texas.
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