"A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines the image characteristics of the original photograph with the georeferenced qualities of a map.
DOQs are black and white (B/W), natural color, or color-infrared (CIR) images with 1-meter ground resolution."
Three Types of DOQs:
3.75-minute (quarter-quad) DOQs
7.5-minute (full-quad) DOQs
Seamless DOQs
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