Search results for " cartografia"
showing 10 items of 283 documents
Information systems for preservation of cultural heritage
2000
The preservation of the cultural heritage has become at present a subject of fundamental importance in Italy, above all because of the numerous unhappy events, due to not only natural reasons, happened in these last years. Besides this problem is particularly urgent in Sicily, because of the existence of a considerable cultural heritage and in absence of a complete and systematic inventory. To tackle such a complex subject, the use of informatics is required, since the traditional methods, based especially on paper documentation, are absolutely inadequate. Particularly, this work deals with the cultural heritage inventory selected according to: - historical urban centres; - archaeological s…
The virtual reconstruction of temple B in Selinunte excavation site
2008
This paper proposes a study on the virtual reconstruction of temple B in Selinunte. It is the smallest of Selinunte’s temples yet, despite its size, it has been the subject of great interest and debate by scholars since its discovery in 1823. The studies carried out throughout the XIX century and the first half of the XX century provided different renderings, especially as to the organization of the elevation. The goal of this work is the virtual anastylosis of temple B, through the study of all available historical sources, the survey of fragments preserved today at the “A.Salinas” Regional Archaeology Museum in Palermo, and the survey of the finds at Selinunte’s site. The virtual reconstr…
Innovative techniques for survey and communication of cultural heritage
2008
This paper deals with the survey and communications of Cultural Heritage through the development of innovative methodologies. The case of study is the polychrome wooden ceiling in the “Magna” Hall of “Palazzo Steri”. The “Steri”, built in the XIVth century by the noble family Chiaromonte, is at the present the headquarter of the Rector’s Office of Palermo University. A 3D model of the wooden ceiling has initially been carried out with laser-scanning and digital photogrammetric techniques; successively a multimodal interactive guide has been realized. The guide is integrated to the 3D model, so that visitors can navigate the virtual representation of the ancient wood ceiling and achieve, int…
3D survey and modelling of the main portico of the Cathedral of Monreale
2018
3D survey and modelling of Cultural Heritage allow to store a great deal of 3D data that can be managed for different purposes. 3D models can be used for documentation, restoration and knowledge of historic architectures and monuments. In this work, a 3D survey of the main portico of the Cathedral of Monreale (Palermo, Italy) was carried out. The paper presents the data acquisition process and the 3D modelling phase. The work is aimed to reconstruct a 3D model that could be used also to set up an HBIM (Heritage or Historic Building Information Modelling) of the main portico. The result of this study could be considered as a first test to implement an HBIM platform for the whole monumental c…
Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy
2018
Monitoring dam displacements using different techniques allows an evaluation of their structural behaviour over time. In this study, dam displacements (for the Castello dam, Agrigento, Italy) have been investigated using different Interferometric Synthetic Aperture Radar (InSAR) techniques exploiting a freely available dataset from the EU Copernicus Sentinel-1 SAR built by the European Space Agency (ESA). The dataset includes Sentinel 1A (S1A) images acquired in dual-polarization and Interferometric Wide (IW) swath using the Terrain Observation with Progressive Scans SAR (TOPSAR) mode. Three main Multi-Baseline Construction methods based on the identification of Persistent Scatterers (PS) h…
Computer Vision Tools for 3D Modelling in Archaeology
2013
In archaeological Cultural Heritage study 3D modelling has become a very useful process to obtain indispensable data for documentation and visualization. Nowadays the continuous request to achieve photorealistic 3D models has led to testing different techniques and methodologies to speed up both data acquisition and the data processing phase. There are many examples of surveys conducted with the use of range-based and image-based techniques, but, in the last few years, the scientific research has been increasingly moving towards automatic procedures using Computer Vision approach to reduce time during data processing. Computer Vision approach offers a great opportunity for archaeological su…
Comparison between topographic and photogrammetric techniques for deformation monitoring of the dome of the Massimo Theatre in Palermo
2012
This paper shows the first results of a study aimed at monitoring the deformations of the dome of the Massimo Theatre in Palermo caused by thermal dilatations, with the use of topographic and photogrammetric integrated techniques. Particularly, two robotic total stations and high precision digital photogrammetric systems were employed. In order to correlate the displacements of the rollers on which the steel structure of the dome rest with the thermal gradients, different thermal images were acquired by a thermal imaging camera. The main goal of the work was to compare the two techniques with reference to very small (submillimeter) deformation measurements. The obtained results show that th…
Monitoraggio delle deformazioni della cupola del Teatro Massimo di Palermo con l’impiego di tecniche topografiche e fotogrammetriche integrate.
2012
L’articolo riporta i primi risultati di uno studio finalizzato al monitoraggio delle deformazioni della cupola del Teatro Massimo di Palermo provocate dalle dilatazioni termiche, con l’impiego di tecniche topografiche e fotogrammetriche integrate. In particolare, sono state utilizzate due stazioni totali robotizzate e sistemi di fotogrammetria digitale di elevata precisione. Per correlare gli spostamenti dei carrelli sui quali poggia la struttura in acciaio della cupola con i gradienti termici, sono state acquisite immagini termiche diversificate. L’obiettivo principale del lavoro consisteva nel confronto delle due tecniche di rilievo in relazione a misure di deformazione di entità molto ri…
Monitoraggio topografico e fotogrammetrico della cupola del teatro Massimo
2012
L’articolo riporta i primi risultati di uno studio finalizzato al monitoraggio delle deformazioni della cupola del Teatro Massimo di Palermo provocate dalle dilatazioni termiche, con l’impiego di tecniche topografiche e fotogrammetriche integrate. In particolare, sono state utilizzate due stazioni totali robotizzate e sistemi di fotogrammetria digitale di elevata precisione. Per correlare gli spostamenti dei carrelli sui quali poggia la struttura in acciaio della cupola con i gradienti termici, sono state acquisite immagini termiche diversificate. L’obiettivo principale del lavoro consisteva nel confronto delle due tecniche di rilievo in relazione a misure di deformazione di entità molto ri…
L'insegnamento della Geomatica al tempo della Gelmini
2012
L’articolo riporta e analizza i risultati del censimento dell’offerta formativa nel settore della Geomatica promosso nel 2011 dall’AUTeC. I dati vengono confrontati con quelli relativi al censimento del 2009; il confronto conferma la tendenza alla riduzione dell’offerta, in relazione soprattutto all’applicazione del nuovo ordinamento didattico e alla contrazione del numero dei docenti negli ultimi anni. Vengono presentate in conclusione alcune proposte per trovare spazi adeguati alla attività formativa del nostro settore.