4D monitoring of port areas through photogramemtry

3D surveying is crucial for recording, tracking, and examining artifacts, structures, and sites. Combining data from various sources is essential for achieving precise and reliable results. UAVs, due to their agility, are frequently employed for data collection in challenging terrains, and their lower cost compared to airplane surveys enables repeated data acquisition through regular missions, facilitating ongoing monitoring. This study outlines a project focused on monitoring a pier within Naples' port, a structure that has experienced morphological alterations over time due to powerful storm surges. Currently in its initial phase, the project seeks to establish a comprehensive 4D database, enabling intelligent and precise management of the pier and its surrounding area. A well-defined process was employed, involving the comparison of satellite imagery to pinpoint coastline alterations. UAV technology, coupled with close-range photogrammetry, was utilized to generate 3D models of the region, serving as the foundation for a 4D database. A thorough evaluation of the UAV survey results was conducted to determine the most effective workflow. The project's objective is to conduct annual drone flights, approximately at the same time each year, ensuring continuous and current monitoring.