Photogrammetry involves capturing 3D information about an object or location through radar, sonar, lidar, or digital photography.
The digital scholarship team at St. Lawrence University uses digital photography to “scan” objects that we recreate digitally using photogrammetric software such as PhotoCatch and Agisoft Metashape. This means taking several photographs (typically 100 or more) of one object from many different angles and perspectives. The photographs are imported into the photogrammetric software, which aligns the photos and then creates tie points followed by mesh, solid, and texture layers. Together they create the finished 3D model.