Developments in the fields of aerial photography and other types of non-ground based remote sensing have a serious impact on the possibility to study large and complex sites with a non-invasive approach. Detailed investigation of available aerial images combined with an intensive monitoring of such sites with the help of low-altitude digital aerial photography can be very productive for the study of Roman urbanization. Together with on-going studies where predominant use is made of the more static evidence of existing vertical photography or imagery obtained from high resolution satellites or airborne radar, an always wider array of remote sensing techniques is available for such research or can be further developed. Besides techniques such as conventional vertical and oblique aerial photography, this work also includes still experimental applications of LiDAR, and Near-UltraViolet (NUV), visual, and Near-InfraRed (NIR) photography from a drone or ‘helikite’.
