Se infatti in Italia e in Europa restano ancora molti gli aspetti da chiarire circa la regolamentazione generale dei “Remotely Piloted Aerial Systems” (RPAS), uno dei dati sicuri che paiono emergere da regolamenti e linee guida è la tendenziale semplificazione dei requisiti di certificazione e validazione a beneficio degli impieghi di macchine di masse inferiori a 2 kg. La recente comparsa di droni professionali di taglia “minimale” è un fatto da tenere presente dato che può avere significative implicazioni su molti ambiti della ricognizione territoriale in genere e, in particolare, della ricognizione archeologica. ITALIANO: La diffusione massiva di piccoli droni sul mercato generalista procede di pari passo con l’evoluzione di sensori di acquisizione di immagini sempre più sofisticati e, allo stesso tempo, miniaturizzati. In fact, the following case studies related to sites, monuments and artefacts of the Etruscan town of Volterra represent the evolution of this interaction/relationship, helping to make the fruition of archaeological evidence, that at present is still difficult to access and understanding, easier and more interesting.
In this sense, the contribution of the archaeologist is critical to determine what to display and what to interact with, according to the end user and his skills and knowledge. Currently, a very important topic is the relationship between user and 3D model: from the simple passive fruition, we are moving increasingly towards a real interaction within immersive virtual environments.
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Although with different goals and purposes, new hardware and software available and specially designed web platforms allow the archaeologist adequately trained to create, visualize, analyze, and share 3D data derived from computer graphics or from image- and range-based acquisition procedures. Nowadays, archaeology and modern 3D modelling and representation technologies form an unbreakable bond, considered essential and indispensable by many experts and scholars. Adopting the methodology known as Procrustes, the data table was thus progressively reduced, and each time investigated: the results so obtained were then used to reach a global assessment about how much each reduced data set could correspond to the optimized one. For this reason, looking for an optimal composition and for the most effective encoding of the data set, a reduction of its rarest forms was performed to find the threshold which could allow to reconcile the need for keeping the useful encoded information with the best possible reduction of elements producing high inertia.
The presence of a relatively high number of rare forms in the data set – besides the hapax – led to think, however, that the extraction of the factors – so the outcomes of the analyses – could have been influenced heavily by them. The use of Textual Correspondence Analysis to investigate a corpus of iconographic compositions carved on Mesopotamian cylinder seals proved to be very useful to understand the peculiarities of the specimens from the points of view of geographic origin, typology and inner chronology.
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