Análise de exatidão posicional de Ortomosaicos gerados a partir de dados termais a bordo de VANT

The objective of this study was to evaluate the positional accuracy of products from the use of a thermal sensor, a thermal ortho-mosaic, in accordance with the Brazilian Cartographic Accuracy Standard of Digital Cartographic Products (PEC-PCD). In order to perform these tasks, a field survey with thermal data was done, using a multirotor quadri-copter drone, at an area of approximately 10,000 m, in São José dos Campos, SP. Two processing configurations were used to generate the products: 1. using only the central coordinates of the images and 2. considering Ground Control points during processing. Taking into account the mandatory use of GCPs and the uncertainties involved in the process to obtain thermal images with a drone, this is an efficient alternative to image areas with non-apparent characteristics in the visible spectrum or at night.