Digital Orthophotos

A digital orthophoto is a photographic image that has been converted to raster form and horizontally corrected for the effects of relief displacement, aircraft tip and tilt, and other image distortions and displacements. It is a photographic map stored in a digital computer environment.

The quality of digital orthophotos is dependent upon the quality of each step in the process. Component steps include aerial photography, ground control survey or airborne geodetic position satellite (ABGPS) survey, aerotriangulation, DTM / DEM collection, image scanning, ortho-rectification, and digital or hardcopy output.

We utilize several commercial software programs to create individual orthophotos from the various components, and then stitch them together as seamless orthophoto mosaics. Delivery products include full or compressed digital files, or hardcopy plots.

The Air Survey Image Library