1. A method of generating a perspective image of a location from a sensed image of the location, the method comprising: directing an image sensor having a line of sight so that the line of sight intersects with a location and the image sensor produces a sensed image of the location around the line of sight; obtaining a reference image of the location that corresponds to the sensed image of the location, the reference image being comprised of a plurality of reference image pixels; obtaining elevation information for the location and associating elevation values to the reference image pixels; orienting the reference image so that the reference image orientation corresponds to an orientation of the location relative to the image sensor line of sight; mapping the reference image pixels into a perspective image comprised of a plurality of perspective image pixels by mapping the reference image pixels to the perspective image pixels; assigning the color of each reference image pixel to the perspective image pixel mapped by the reference image pixel; and for unmapped perspective image pixels, backfilling the unmapped perspective image pixels with an interpolation of a color of a mapped one of the reference image pixels that has been mapped into the perspective image.