Comparison of the altimetric error of aerophotogrammetry with drone with the RTK GNSS positioning method

Abstract

Humans are in dire need of guidance and understanding about technology, especially the use of equipments that generate topographical surveys speedily and with high level of precision and accuracy. Therefore, it is necessary to verify the quality of the data from these surveys, so that future adjustments can be made, bringing the collected values ​​closer to the reality of the terrain. The objective of this work is to compare altimetric values obtained using the positioning method called Real Time Kinematic (RTK) and georeferenced, with altimetry points obtained from the Digital Terrain Model (DTM), created from photographs taken during an aerophotogrammetric survey with Drone, at Cloverleaf of Restinga Seca - RS. It is expected to obtain the altimetric error of the values of aerophotogrammetry with drone, mainly, where the photographs of the drone do not record the surface of the ground or terrain. It is expedient to analyze the significance of the same.