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Creating orthophotos with unmanned aerial vehicles and examining its accuracy and usability in geodetic applications

Unmanned aerial vehicles, one of the technologies that aim to produce data in many scientific studies, has widespread use in many engineering applications, especially in cartography applications. UAV, which can meet the high accuracy required in many studies, offer users the opportunity to produce point cloud and maps for various aims. It is aimed to produce a high‐resolution orthophoto map of the study area in this study. In addition, the accuracy of the orthophoto map produced for the areas classified according to topographic structures in the study area has been checked with GNSS measurements, and its compliance with the standards specified in the regulation has been examined. According to the results; Considering the root square mean error values of three axes, it has been searched whether the accuracy values of the products obtained are suitable according to the regulation and it has been determined that these values are within the limits. Then, the application of testing the accuracy of the orthophoto map has been started. When all checkpoints have been examined, the maximum error values in x, y, and h directions have been found to be 5.9, 4.5, and 4.9 cm, respectively.