Avaliação geométrica do levantamento da área construída da UTFPR-DV por imagens de veículo aéreo não tripulado (VANT) utilizando câmera não-métrica

Abstract

With the technological advancement of data processing in the last two decades, several military applications of Unmanned Aerial Vehicles (UAVs) have been developed around the world (ARMADA, 2004). The commercial use of this technology, mainly in Brazil, was aimed at police surveillance, survey of meteorological conditions, applications aimed at precision agriculture, among others (Medeiros, 2007). With the evolution of this technology there is an increase in the demand for unmanned aerial vehicles (VANT's), as they offer technical and economic advantages. Therefore, the objective of this work is to evaluate and compare the survey of the constructed area of the campus of the UTFPR - DV carried out in the field, using GPS and Total Station, with an image obtained from a UAV using non - metric camera . To do so, a non-metric camera coupled to a UAV was flown to generate the orthorectified image of the study area, for later georeferencing of the image from field control points using GPS. Afterwards, areas of the roof were vectorized, for the quantification of the same for later comparison with the areas obtained with the Total Station. The analyzes showed that there was a correlation between the areas obtained by the different methodologies, with an acceptable error for many purposes, provided some care is taken, for example with control points. Thus, this work showed that it is possible to do a survey of roof area from a UAV image with the use of non-metric camera.