What is photogrammetry?

Photogrammetry is the science of combining photographic images together to create a 3D map of an area that can then be overlaid with other data from sensors including GPS location data,  LiDAR data for distances, multispectral or thermal imaging, or other types of data and used to measure physical spaces, gauge large distances, or understand structures. Photogrammetry can be used to create 3D models of any 3D item, including land, infrastructure, statues, buildings, and spaces large and small.