UAVs come in two main types: multi-rotors (copters), and fixed wings. The UAVs used in photogrammetry will carry a downward pointing camera and often a GPS unit.
The cameras carried by these vehicles varies from proprietary fixed-focal length units, to GoPros, to high resolution DSLRs. PhotoModeler can work with images from any of these variations. The quality of the results will depend to a large degree on the quality of the camera.
UAV-related factors that affect final photogrammetric project quality are:
• Camera and lens quality
• GPS availability
• GPS quality (including accuracy of the GPS and image synchronization) and whether GPS RTK or PPK processing is used
• Quality of the flight management software (to produce good and consistent overlap in photos)
• Weather and wind speeds (lighting effects, and the ability to produce non-blurry and consistent overlap)