Aerotriangulação por faixa e em bloco, por aplicação de software especialista, com medições de coordenadas fotográficas em mesa digitalizadora

Abstract

In the elaboration of maps, one of the processes broadly employed is the photogrametric restitution. But for accomplishment of this process it becomes necessary to have, on each stereoscopic pair, terrestrial coordinates of points. However, not always it is possible to measure these coordinates in the field, it is fallen back upon a photogrammetric method of mensuration, known as Aerotriangulation. In this work Aerotriangulation process was realized using specialist software. The photographic coordinates were measured on photograms with cordboard base in a digitalizer table in substitution to the classic photogrammetry equipments. With the obtained results it was made an errors analysis with the objective of verifying the application of the method in the making of cartographic bases. The block aerotriangulation presented higher planimetric precision if compared with the strip aerotriangulation. Of the block aerotriangulations, the method with nine support points being framed in the elaboration of maps of "A ", B " and " C " class for scale 1:25.000 or lower, presented highest error