Four sets of 66-inch Long Range Oblique Photography (LOROP) have been used for extensive image measuring tests. The geographic coordinates of 206 ground control points have been repeatedly determined from the imagery and compared with the true locations as determined from topographic maps. A method of predicting the accuracy of LOROP-derived ground coordinates for other users is presented.
Glen C. Gustafson,
"Measuring From Lorop: Tweaking The System", Proc. SPIE 0833, Airborne Reconnaissance XI, (19 February 1988); doi: 10.1117/12.942262; https://doi.org/10.1117/12.942262