 UAVs, unmanned aerial vehicles, have become increasingly popular for their ability to provide high-quality images for mapping and 3D modeling purposes. These images can be used to create detailed maps, contours, textured 3D models, and vector data. Automating the process has been made possible through recent advances in image processing techniques. This paper discusses these advancements and how they can be applied to UAV imagery. This article was authored by F. Riemondino, Alberazeti, F. Nex, and others.