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The Use of UAV for Remote Sensing Applications: Current Examples and Future Trends Dr. Kyriacos Themistocleous Cyprus University of Technology Department of Civil Engineering and Geomatics OUTLINE • Low-altitude airborne systems • UAV examples • Applications • Future of UAVs Unmanned Aerial Vehicles (UAVs) A UAV is an unmanned aerial vehicle designed to fly without a pilot. The term UAVs is used in the field of Geoinformation. Other common names for UAVs include: • Remotely Piloted Vehicle (RPV) • Remotely Operated Aircraft (ROA) • Remote Controlled (RC) Helicopter Figure 1. Positive crop mark (barley crops) formed over buried archaeological remains (left). Spectral signatures over buried relics and healthy vegetation (right). • Unmanned Vehicle Systems (UVS) • Model Helicopter Use of UAV • Photogrammetry with high resolution images • Remote sensing • Aerial Surveillance • Monitoring • Coastal erosion and atmospheric pollution • Earth observation (quarries and mines) • Infrastructure monitoring • Land survey and town planning • Forest management and fire monitoring • Mapping and monitoring of desertification Figure 1. Positive crop mark (barley crops) formed over buried archaeological remains (left). Spectral signatures over buried relics and healthy vegetation (right). • Geographical information systems (GIS) • Environmental studies and monitoring The Use of UAV in Remote Sensing • Different methods can be used for monitoring and surveillance of areas and natural phenomenon. • UAVs and other low-borne aerial systems can be used to fill the gap between satellite remote sensing and ground measurements. Satellite Airplanes/UAVs Low-altitude airborne systems Spectroradiometers Figure 1. Positive crop mark (barley crops) formed over buried archaeological remains (left). Spectral signatures over buried relics and healthy vegetation (right). Field Low-altitude airborne systems UAV Glider 1-1/2 hr flight time Oktokopter Miniature spectroradiometer employed on UAV 350-900 nm Waterproof Hydro-UAV • Water quality • Surface and underwater images. • Spectral signatures of water Tetracam multispectral camera Thermal infrared Examples of applications Agricultural Research Institute in Zygi UAV – Low altitude systems Aerial Images Images from Kolossi Castle Paphos Archaeological Park 3D reconstruction from UAV images 3D reconstruction from UAV images Curium Archaeological Site UAV Google Earth Google Earth UAV Digital Elevation Model (DEM) Image Processing Surface Modeling 3D Models Fabrica Hill, Paphos Results – 3D models Euromed 2014 Palepaphos (Kouklia) UAV – Low altitude systems 3D Modeling Asinou Church 12th century shrine to the Virgin Mary Located in the Troodos Mountains of Cyprus UNESCO World Heritage Site Asinou Church Documentation – Modeling – 3D printing 3D Model Documentation 3D Printing Asinou Church Documentation – Modeling – BIM BIM Overgrazing in the Pissouri area Future of UAVs Future of UAVs • Smaller Size • Longer battery time • Longer flight path • Increased accuracy (GPS) • Higher resolution • Lower cost • Greater safety • Larger payload • Improved and smaller sensors for Remote sensing applications • Interoperability with satellite sensors A tiny Black Hornet Nano unmanned air vehicle (UAV), is launched from a compound in Afghanistan. Photograph: Reuters Issues: • Safety!!! • Regulations • Fully - automated flight • Personal information • User flight management • Experience and training • Amateurs, professionals and research Thank you for your attention
