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TOWARDS A NEW PARADIGM FOR HIGH-RESOLUTION LOW-COST PHOTOGRAMMETRYAND REMOTE SENSING

Current mobile primary data acquisition systems can be grouped in three main categories: terrestrial, manned airborne and satellite borne. This paper discusses whether Unmanned Aircraft Systems (UASs) together with the appropriate sensing and navigationorientation payloads can constitute a new, fourth data acquisition paradigm of the high-resolution and low-cost type. For this purpose, and based on practical experience gained at the Institute of Geomatics (IG), some fundamental issues of UAS-based photogrammetry and remote sensing (PRS) are reviewed; from the geomatic aspects of navigation and orientation, to the manifold of already existing applications and to various regulatory initiatives that the main aviation authorities are conducting. The paper identifies technical challenges and advantages specific to UAS-based PRS and concludes that, beyond the technical aspects, one key issue is the integration of UAS in the civilian non-segregated airspace.