Accession Number : AD0784290
Title : New Photoreducers,
Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
Personal Author(s) : Kozhevnikov,N. P.
Report Date : 04 MAR 1974
Pagination or Media Count : 23
Abstract : Enterprises of the GMGK have recently been equipped with stereophotogrammetric devices and the techniques of photogrammetric bunching have been improved. This permitted a considerable reduction in the geodetic network of field points for preparation of aerophotos in topographic mapping on scales of 1:25,000 and 1:10,000. New photoreducers have been developed (the single-projector PRS and the four-projector model) which permit direct optical reduction of grids of 80-90 cm to a base scale with an error of no more than 0.2-0.3 mm (averaging 0.10-0.15 mm). In the extensive development of the analytic method of three-dimensional phototriangulation, the use of the new photoreducers has great promise since they are needed for all work where photogrammetric bunching is done on a general-purpose instrument. The four-projector device detects and avoids patterned distortions.
Descriptors : *Photogrammetry, *Photographic printers, Photographic projectors, Triangulation, Reduction, USSR, Translations
Subject Categories : Cartography and Aerial Photography
Distribution Statement : APPROVED FOR PUBLIC RELEASE