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15 October 1993 Past, present, and pricing of orthophotos
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Abstract
In order to have a good appreciation of the present, one must first examine a little history of our industry in the areas of equipment and purpose. Orthophoto imaging with its many techniques has been with us since the early thirties. The word ortho or orthogonal simply means vertical and much time has been expended on trying to achieve this type of projection not only over the prospective center of a photo image but also above every point imaged in the photography.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bryan L. Foley "Past, present, and pricing of orthophotos", Proc. SPIE 1943, State-of-the-Art Mapping, (15 October 1993); https://doi.org/10.1117/12.157152
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