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The huge potential of 3D digital acquisition techniques for the documentation of archaeological sites, as well as the related findings, is\udalmost well established. In spite of the variety of available techniques, a sole documentation pipeline cannot be defined a priori because\udof the diversity of archaeological settings. Stratigraphic archaeological excavations, for example, require a systematic, quick and low\udcost 3D single-surface documentation because the nature of stratigraphic archaeology compels providing documentary evidence of any\udexcavation phase. Only within a destructive process each single excavation cannot be identified, documented and interpreted and this\udimplies the necessity of a re- examination of the work on field. In this context, this paper describes the methodology, carried out during\udthe last years, to 3D document the Early Neolithic site of Portonovo (Ancona, Italy) and, in particular, its latest step consisting in a\udphotogrammetric aerial survey by means of UAV platform. It completes the previous research delivered in the same site by means\udof terrestrial laser scanning and close range techniques and sets out different options for further reflection in terms of site coverage,\udresolution and campaign cost. With the support of a topographic network and a unique reference system, the full documentation of\udthe site is managed in order to detail each excavation phase; besides, the final output proves how the 3D digital methodology can be\udcompletely integrated with reasonable costs during the excavation and used to interpret the archaeological context. Further contribution\udof this work is the comparison between several acquisition techniques (i.e. terrestrial and aerial), which could be useful as decision\udsupport system for different archaeological scenarios. The main objectives of the comparison are: i) the evaluation of 3D mapping\udaccuracy from different data sources, ii) the definition of a standard pipeline for different archaeological needs and iii) the provision of\uddifferent level of detail according to the user needs

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

UAV SURVEYING FOR A COMPLETE MAPPING AND DOCUMENTATION OF ARCHAEOLOGICAL FINDINGS. THE EARLY NEOLITHIC SITE OF PORTONOVO