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At present, most measurements on aerial photography are made with image-comparing instruments and shearing or filar measuring microscopes. And in most automated systems, stereo images are first digitized and then correlated with the aid of a digital computer. In all likelihood, some of these techniques can be simplified or improved by Optical Power Spectrum (OPS) techniques.
James T. Thomasson,Thomas J. Middleton, andNiels Jensen
"Photogrammetric Uses Of The Optical Power Spectrum", Proc. SPIE 0045, Coherent Optics in Mapping, (1 October 1974); https://doi.org/10.1117/12.953970
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James T. Thomasson, Thomas J. Middleton, Niels Jensen, "Photogrammetric Uses Of The Optical Power Spectrum," Proc. SPIE 0045, Coherent Optics in Mapping, (1 October 1974); https://doi.org/10.1117/12.953970