Why you need to use ground control points (GCP) for drone mapping. GEOmedia, [S. l.], v. 29, n. 3, 2025. DOI: 10.48258/. Disponível em: https://mediageo.it/ojs/index.php/GEOmedia/article/view/2105. Acesso em: 3 dec. 2025.