Luciano Ombres, Salvatore Verre
In recent decades the composite materials have been used to strengthened and repair the historical masonry. A new class of composites that is begin explored that includes steel fiber sheet embedded in an inorganic matrix. The use of steel fibers was proposed in alternative to others fibers as PBO, Carbon glass and Basalt. In the paper, the structural behavior of masonry columns strengthened with steel-FRCM (SRG) have been investigated through the numerical 3D simulations calibrated on experimental tests present in literature. The 3D numerical approach is based on a macro-model to simulate...
TC4 MetroArchaeo 2017
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Renato S. Olivito, Carmelo Scuro, Rosamaria Codispoti
Numerous archaeological discoveries made all over the Mediterranean area have highlighted the use of a particular building technique based on fictile tubules bricks. This building technique was commonly used for the building of walls and domes in thermal baths and masonry kilns since the Roman Empire. This paper investigates the behavior of structures employing such technology via experimental tests and numerical analysis. In order to obtain the value of force that induced in the structure the develop of the first cracks, a masonry scale arch was built and tested in the laboratory of...
TC4 MetroArchaeo 2017
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Marco Reggiannini, Marco Tampucci
The essential mission of an archeologist can be synthesized in two main objectives. The first one concerns the entire system of experimental measurements and subsequent decision making procedures involved in the archaeological fieldwork process. These actions are usually based on the employment of engineering methods and technical tools that enable the implementation of site searching, mapping and documentation collecting tasks. On the other hand, once the fieldwork has been accomplished, the archaeologist main goal becomes the development of specific actions dedicated to the site...
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David Scaradozzi, Silvia Zingaretti, Luca Panebianco, Nicolò Ciuccoli, Laura Screpanti, Lorenzo Cesaretti, Daniele Costa, Giacomo Palmieri, Fabio Bruno, Maurizio Muzzupappa, Gerardo Ritacco, Antonio Lagudi, Marco Cozza, Marino Mageruga, Polivios Raxis
Marine archaeologists study a large number of submerged sites of interest around the world, which require continue diving explorations and monitoring. Although technology has improved a lot the research in the underwater environment, human intervention is preferred whenever depth makes the sites accessible by divers. This paper presents the concept, the first steps and the preliminary results of the Lab4Dive project, which is co-funded by the EMFF programme of EU, that aims to design, develop, and validate an innovative, marketable and competitive product for surveying, documenting and...
TC4 MetroArchaeo 2017
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A. Capra, C. Castagnetti, M.Dubbini, A. Gruen, T. Guo, F. Mancini, F. Neyer, P. Rossi, M.Troyer
The evolution of underwater photogrammetry allows to realize 3D models of submerged object and structures throughout the use of rapid and efficient procedures either in terms of data acquisition and data processing. These procedures are based on solutions that are applied using natural control points, signalized markers and tie points; the most common algorithms are based on Structure from Motion (SfM) approach. The limit of these applications is sometimes due to the final accuracy, especially when the goal is a centimeter level of accuracy. This accuracy should be necessary when dealing...
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Jérome Pasquet, Stella Demesticha, Dimitrios Skarlatos, Djamal Merad, Pierre Drap
In this paper, we propose a method based on pixel prediction to detect objects into a large image. We propose to integrate theWeighted Error Layer (WEL) in a Convolution Neuronal Network (CNN) architecture in order to weight the error during the backpropagation and to reduce the impact of the borders. We estimate the orientation of the objects when the detection step is achieved. Our proposed layer is evaluated on real data in order to detect amphorae on the Mazatos underwater archaeological site.
TC4 MetroArchaeo 2017
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Antonis Antonopoulos, Sofia Antonopoulou
This paper explores the application of two widely-used digital technologies, Structure-from-Motion (SfM) photogrammetry and Building Information Modelling (BIM), in the case of Byzantine ecclesiastical architecture. SfM photogrammetry was used for the 3D documentation of Agioi Anargyroi Greek Orthodox church in Athens, including exterior and internal spaces, using a combination of ground-based and aerial (UAVmounted) photography under rigorous survey control. The resulting point cloud dataset constitutes the primary survey record of the building in its current state (as-existing). Finally, a...
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Gabriele Fangi, Wissam Wahbeh, Eva Savina Malinverni, Francesco Di Stefano, Roberto Pierdicca
In 2010, just before the war, professor Fangi made a trip in Syria and it was the occasion to make a fast documentation of some Syrian Cultural Heritage monuments. Most of the images were not taken properly to make a survey, but rather as a photographic report. Nevertheless, the images represent an important source of data, which can be processed in a rigorous manner, following the 4x4 CIPA rules, to obtain a 3D modelling by Spherical Photogrammetry. These surveys could be useful in case of reconstruction and in case of lack of a suitable alternative of metric documentation. Then, with the...
TC4 MetroArchaeo 2017
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Claudio Giardino, Raffaele Rizzo
The use of three-dimensional models is widespread in many sciences and has been in common use in archaeological studies, both in the phase of the study and in divulgation for a long time. When making decisions about the use of available technologies the following aspects should be taken into consideration: cost, accuracy, speed and easy of use. The Computer Vision is a relatively recent computer technology that is able to produce a three-dimensional reconstruction by a cluster of photos processed by automated software. The aim of this work is to evaluate the performance offered by the...
TC4 MetroArchaeo 2017
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Kleanthis Xenitidis, Stamatis Chatzistamatis, Christos-Nikolaos Anagnostopoulos, Vassilios Mardiris, Dimitrios Makris
The adaptation of advanced technology is changing the way cultural heritage is being conducted nowadays, and maritime cultural heritage is no exception. Greece has a rich history in the marine section, and many boats are proclaimed from the Ministry of Culture as Cultural Heritage Monuments. The use of modern technology, like total stations and 3D laser scanning, has narrowly been used for the documentation and study of maritime heritage contexts to date, and this is always done by using commercial software for the extraction of the specifications. In this paper, we propose an automated...
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