Papers by Roberto Gabrielli
Acta Crystallographica Section A Foundations of Crystallography, 1984
Archaeologia Polona, 2003
In this paper is described the fusion of two different technologies for the three dimensional acq... more In this paper is described the fusion of two different technologies for the three dimensional acquisition of the Hellenistic-Roman Theatre of Paphos located at the island of Cyprus. A laser scanner and an innovative device for the aerial photogrammetry have been used for this purpose. Despite the size of the archaeological site and the complexity of the survey; it has been possible in a short time to acquire the whole theatre using photogrammetric and laser scanning techniques. The final result is the complete 3D model of the theatre at present, which was used for 3D stereoscopic vision simulation.
Archeologia e Calcolatori, 2017
The research expedition of the CNR-ITABC in the archaeological site of Umm Al-Rasas, near Madaba ... more The research expedition of the CNR-ITABC in the archaeological site of Umm Al-Rasas, near Madaba (Jordan) was partially supported by the Italian Foreign Ministry. It started in 2013 and was mainly focused on the 3D documentation of two Byzantine churches with magnificent floor mosaics, dedicated to Saint Stephen and Bishop Sergius respectively. To improve the analysis of the archaeological structures, different investigation techniques were used and reciprocally integrated, in an effort to create geometric models enabling the interpretation of data related to the masonry and floor mosaics, as well as to the documentation of the archaeological area. In order to facilitate handling and mobility, lightweight tools were chosen and Micro Photogrammetry and Close Range Photogrammetry methods were applied. A correct description of the floor warp was achieved thanks to laser scanner techniques and the resulting geometric data were integrated with the chromatic data coming from photogrammetr...
A series of topographical surveys carried out during the past years in the Salto Valley (Rieti-La... more A series of topographical surveys carried out during the past years in the Salto Valley (Rieti-Lazio), have provided much interesting data regarding local archaeological sites, particularly along the southern slopes of the Breccioso Hills which rise between the Corvaro and Spedino plain. An interesting site has recently come to our attention at Colle Breccioso. However, the nature of the site was not clear and its structure is hazy, a consequence of the deterioration of the surrounding ground and increased vegetation coverage. The situation at the site suggested that a detailed survey of the southern incline and the plateau associated with the site would be valuable. The objective of the survey was to highlight topographic variation and to bring to light any traces of human construction or manipulation. The survey was carried out using a DGPS Leica SR 510, and a total station. The integration of these two instruments (which had both, differing and complementary capacities) produced satisfactory and innovative results. The processing of the Digital Terrain Model (DTM) of the area highlighted several characteristics of the site and the consequent production of thematic maps from this data could be used to guide future excavations at the site.
Archeologia e Calcolatori, 2015
The recent development of camera sensors, the manufacturing of lenses and the accurate algorithms... more The recent development of camera sensors, the manufacturing of lenses and the accurate algorithms of photogrammetric software allow today to acquire point clouds similar to those generated from a laser scanner. The results are similar: numerical models that contain a variety of information, useful for the final data synthesis. Thanks to the automatic points recognition of photogrammetric algorithms, it is now possible to revise part of digital data previously acquired and use them in new computing strategies. Emblematic is the example of the crusader castle of Wu'Ayra, an important medieval fortress located in the Petra valley in Jordan. Since 2000, in collaboration with the international mission of the University of Florence, a number of surveys aimed at detecting the whole monumental area, the archaeological site, the settlement and the defensive system of the castle were performed by the research team of the Italian ITABC-CNR. Different survey techniques were used during the ...
Archeologia e Calcolatori, 2013
Laser scanner and digital photogrammetric systems (photo scanning) must be considered at present ... more Laser scanner and digital photogrammetric systems (photo scanning) must be considered at present two of the main techniques used for archaeological and architectural surveying. The integration of both 3D scanning systems allowed us to improve the scientific knowledge, the management, the use and the safeguarding of Cultural Heritage. The aim of this article is to identify analogies and differences between the two surveying techniques applied to different archaeological contexts. Starting from a general introduction to the concept of measurement and the management of the data acquired from different techniques of surveying, the article focuses on the laser scanner applications with particular attention on the intrinsic properties of the instrument, the problems of measurement and the methodology used during the survey. The second part is focused on the digital photogrammetry applied on a particular archaeological context. Digital photogrammetry was developed and experimented in order...
Archeologia e Calcolatori, 2013
Since 2002, the Italian Mission of CNR-ITABC has been operating in the archaeological complex of ... more Since 2002, the Italian Mission of CNR-ITABC has been operating in the archaeological complex of Chan Chan (Peru), which is the largest pre-Columbian settlement entirely built with adobe. In 1989 Chan Chan was placed on the UNESCO World Heritage List. The main purpose of the work is aimed at the conservation, documentation and use of the site and of the territory that is related to Chan Chan from a historical and cultural point of view. The urban structure of Chan Chan, which is spread over a surface of 14 km2, has a number of buildings which characterizes the town at both an architectural (ciudadelas, huacas, huachaques) and decorative level (bas-reliefs, geometrical motifs). In order to achieve our research goals, we had to arrange for the combined use of various analysis techniques that would provide both urban and architectural information about the town. The data we obtained allowed us to make a more up-to-date interpretation of the urban fabric and revealed intriguing details ...
Annals of Geophysics, 2019
The Stylite Tower is part of the UNESCO archaeological site of Umm ar−Rasas (Jordan). It represen... more The Stylite Tower is part of the UNESCO archaeological site of Umm ar−Rasas (Jordan). It represents a unicum in its category and has a fundamental value for the Jordanian Cultural Heritage as a symbol and an emblem of Jordan's history and culture. The monument has evident signs of deterioration that appear in the form of substantial detachments of the plaster, water infiltration, erosion and fractures. Given the need to preserve this important ancient monument and for public safety reasons, a high−detail analysis of the Tower has been achieved through the realization of 3D geometrical surveys (Photogrammetry and Laser Scanner) and non−invasive geophysical surveys (using Ground Penetrating Radar Technique). The use of non−destructive testing techniques has provided encouraging results for the struc− tural planning of diagnostic, consolidation and restoration activities.
Antiquity
Using a new approach that combines high-quality coring with AMS dating, the authors are mapping t... more Using a new approach that combines high-quality coring with AMS dating, the authors are mapping the start of the Neolithic in Aegean Thrace – a missing link in the arrival of agriculture in Europe. The method also revealed the edge of the marine transgression dating to some 2900 years ago, implying that sites located near the coast in early Neolithic times have in all likelihood been lost to the sea. Keywords: Neolithic, Aegean Thrace, radiocarbon dates, marine transgression, coring
The aim of this work is to contribute to a better understanding of the historical and archaeologi... more The aim of this work is to contribute to a better understanding of the historical and archaeological heritage. Archaeological and territorial data have been collected and processed in a GIS in order to provide information on the evolution of the population settlement in a selected area used as a case study. The area investigated was that located between the rivers Nera and Aniene (North-South direction) and between the river Tiber and the Sabine Mountains (East-West direction). It is historically identified as the Sabina Tiberina region. This area is characterised by a large number of sequential settlements of different populations beginning in the Iron through to the Medieval period. The GIS developed offers the possibility of describing and interpreting the territorial changes caused by the various populations. One of the main features of the GIS is its easy use for non-expert users (such as teachers, students and decision makers). Examples of different types of maps that can be...
attiasita.it
(*) Istituto per le Tecnologie Applicate ai Beni Culturale, ITABC-CNR di Roma, roberto.gabrielli@... more (*) Istituto per le Tecnologie Applicate ai Beni Culturale, ITABC-CNR di Roma, [email protected], [email protected]. (**) Dipartimento di studi storici e geografici, Università degli studi di Firenze, [email protected], [email protected]. (***) Menci ...
Archaeological Prospection, 2009
... ABSTRACT Non-destructive geophysical prospecting methods are increasingly used for the invest... more ... ABSTRACT Non-destructive geophysical prospecting methods are increasingly used for the investigation of archaeological sites, especially where a detailed physical and geometricalreconstruction of struc-tures is required prior to any excavation work. ...
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Papers by Roberto Gabrielli