11. Use of Unmanned Aerial Vehicles for Imaging and Remote Sensing

The developments in unmanned aerial vehicle (UAV) systems in recent years and the production of UAV systems in smaller sizes have made these systems more preferred in imaging and remote sensing systems. The use of imaging and remote data collection applications with different aircraft and aircraft brings high operating costs and long planning processes. The costs of imaging and remote sensing studies with aircraft are both quite high, and the flight preparation studies take a long time. UAV systems are increasingly preferred for remote imaging and data collection applications due to the high cost of remote image collection by aircraft, the necessity of employing more operating personnel, and the need for long-term planning. Especially for environmental monitoring studies in small- or medium-sized areas, UAV technologies offer much more economical, flexible, and faster solutions. UAVs are increasingly preferred in photogrammetry and remote imaging applications due to their flexibility, efficiency, low cost, and easy-to-use features. With the increasing use of UAV systems in the field of photogrammetry, studies of taking, processing, and analyzing UAV-based aerial images are gaining momentum day by day. Different imaging and remote sensing cameras and sensors are widely used in UAV systems. These are near-infrared, multispectral, hyperspectral, and thermal cameras. At the same time, laser scanners and synthetic aperture radar systems, which are increasingly used in commercial and industrial applications, are also increasingly used in UAV systems. In this study, near-infrared cameras, multispectral cameras, hyperspectral cameras, thermal cameras, laser scanners, and synthetic aperture radar systems used in UAV systems were examined. At the same time, its industrial applications were examined.