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Maurizio Perticarini, Andrea Giordano
Ponte San Lorenzo, a case study for the comparison of image-based survey tools. NeRF as an alternative to photogrammetry

The aim of the research is to experiment with the new possibilities offered by artificial intelligence applied to surveying. Ponte San Lorenzo, a perfectly preserved archaeological artefact under Via Riviera dei Ponti Romani in Padua, one of the case studies of the 2018 project of the University of Padua entitled: PD-Invisible: PaDova INnovative VISions - visualizations and Imaginings Behind the city Learning, was the object of an accurate integrated image and range-based survey and made it possible to compare the different 3D acquisition methodologies of the cultural heritage. The Bridge is now digitally rendered through the new system developed by Nvidia called Instant Nerf and the new web-based software Luma AI which exploit machine learning and Volume Ray Merching for the creation of virtual twins. The same database of photographs taken for photogrammetry was used as a training database for the algorithm. The research aims to evaluate the results of the new survey system and to compare them with the results of the methods used in the past.

Francesco Di Paola, Sara Morena, Sara Antinozzi, Giulio Raimondi
The survey of the precious one of Constance. Tools and techniques for three-dimensional restitution of complex surfaces at sub-millimetre resolution

Numerous factors must be managed to ensure high quality and accuracy of sub-millimetre resolution models. In this regard, this study reports two examples of surveying objects of accentuated complexity: the precious ones of Constance. These are two emblematic cases selected to determine whether the recording systems chosen, a structured light scanner and a low-cost camera integrated into a USB microscope, could support the requirements of accurate and reliable three-dimensional reconstruction.
The work conducted allowed us to experiment different technologies, highlighting their peculiarities but also the limits that each of them has in particularly complex conditions. Like often happens in the archaeological environment, the objects to be surveyed present unique as well as varied characteristics, which is why a single type of instrument is often not always able to completely render the final three-dimensional model. This underlines the complexity of the survey process and the difficulty in finding a single pipeline.

Asa Berggren, Marco Callieri, Nicolò Dell'Unto, Paola Derudas, Domenica Dininno, Fredrik Ekengren, Giuseppe Naponiello
The Dynamic Collections project: providing structured online access to digital replicas

This contribution will present the latest results of the Dynamic Collections project, highlighting the evolution of the approach, methodologies and tools. The core idea behind the project was to explore the possibilities of working online, for teaching and study purposes, with high-resolution digital replicas of archaeological artefacts, going beyond the single-object approach.
To this aim, the project built an archive of high-resolution digital models, and designed and implemented an online platform that makes it possible to build, annotate and share a custom assemblage of the objects in the archive (a Dynamic Collection, that is). These annotated collections can be the pivot element in the definition of collaborative workflows and shared research/teaching environments.

Stefano De Santis, Giovanni Moretti, Michele Arturo Caponero, Sara Fares, Cristina Mazzotta, Diego Dell'Erba
Investigation on a prototype integrated system for strengthening and monitoring architectural heritage

Composite Reinforced Mortar (CRM) is an advantageous system for the upgrade of existing structures and is particularly suitable for architectural heritage. Despite the acknowledged importance of continuous structural health monitoring (SHM), effective technologies have not been developed yet for CRM-strengthened buildings. This paper describes a preliminary investigation on a novel system, which integrates CRM with Fibre Bragg Grating (FBG) sensors. Direct tensile tests were carried out as the first step of a wider prototype development programme. Strains measured by FBG sensors were validated against those provided by Digital Image Correlation, showing the reliability of the proposed CRM-FBG integrated system for combined strengthening and SHM purposes.

Cecilia Giorgi, Giovanni Caratelli
A metrological approach to the study of ancient architecture. The cases of the Grotta dell’Arsenale and the villas of Gradola and Damecuta in Capri

The project Masgaba. An Archaeological Map for the Island of Capri aims to create an archaeological map of the island of Capri, focusing on the Roman era, by compiling existing data and documentation into a comprehensive digital archive. The main objective is to gain a deeper understanding of the archaeological assets of the island, including their original functions and dimensions, in order to facilitate their preservation, enhancement, and contribute to territorial planning. The project involves mapping and studying the known sites, conducting field surveys, and utilizing advanced techniques like photogrammetry and laser scanning. This type of survey allows for the application of a metrological approach with a certain level of confidence, which has yielded unexpected results in the Grotta dell Arsenale and the Gradola and Damecuta villas, especially in terms of planimetry and constructional aspects that were impossible to comprehend from previous documentation.

Maria Antonietta Zicarelli, Michela Ricca, Silvestro Antonio Ruffolo, Raffaella Greca, Mauro Francesco La Russa
Preventive conservation of the pictorial evidence in the church of Sotterra (Paola, Italy): a microclimatic investigation in a hypogeum environment

The conservation of subterranean sites is an issue that poses hard questions, several of which are nowadays still unanswered. In the field of preventive conservation, microclimatic investigation is fundamental as it makes possible to examine the interaction between environmental conditions and degradation phenomena which occur on the artifacts. In the present study, a microclimatic campaign for the duration of nine months was conducted inside the church of Sotterra at Paola, in the province of Cosenza (Calabria, Italy). The church, today located six metres under the ground level, represents a unicum since, despite its current location, it was originally built at ground level. The presbytery area preserves important mural paintings which date back from 11th to the 15th century which suffer severe damage due to the extreme environmental conditions. The results already obtained from the diagnostic campaign of a previous work have been combined with the thermo-hygrometric values in order to assess the conservation risks of the pictorial evidence.

Antonio Spagnuolo, Andrea Bergomi, Carmela Vetromile, Antonio Masiello, Noemi Mantile, Mattia Borelli, Chiara Andrea Lombardi, Valeria Comite, Paola Fermo, Carmine Lubritto
Protecting Art and People: Environmental Monitoring of Beata Vergine dei Miracoli Sanctuary for Health and Heritage Conservation

This research article discusses the importance of environmental monitoring to ensure the health and well-being of humans and ecosystems, with a specific focus on cultural heritage sites, which are susceptible to damage by pollution and microclimatic conditions. The Beata Vergine dei Miracoli sanctuary, a notable cultural heritage site in Italy, was studied to analyse the environmental quality of the site and any changes in environmental conditions during the COVID-19 pandemic. The study monitored different environmental parameters from 20 January to 11 April 2023. The data collected were evaluated, and the results were compared with previous campaigns. This study highlights the importance of environmental monitoring in cultural heritage site conservation, particularly in response to global challenges like climate change and pandemics.

Daniele Sofia, Maria Ricciardi, Oriana Motta, Antonio Proto
Air quality assessment in cultural heritage: the case study of the Amalfi Cathedral (Amalfi, Salerno, Italy)

Air pollution is a serious problem for the preservation of cultural heritage. In fact, the iteration works of art with atmospheric pollutants leads to their degradation. To define the impact of air quality on artifacts, it is necessary to measure the pollutants levels through an air quality measurement system. In this study, the levels of particulate matter (PM10, PM2.5 and PM1) near the Amalfi Cathedral (Amalfi, Salerno, Italy) were measured by using the Sensy sensor. The analysis of the data recorded by the Sensy sensor was useful in identifying the air quality in an area that is very crowded with tourists from around the world. By analyzing the data collected by the sensor, researchers were able to assess the air quality in the area and evaluate the potential impact of air pollution on the cultural heritage sites in the region.

Mattia Borelli, Andrea Bergomi, Valeria Comite, Vittoria Guglielmi, Chiara Andrea Lombardi, Maria Grazia Perrone, Paola Fermo
Cultural heritage safeguard through multi-parameter air quality monitoring

Artworks restoration and conservation awareness has risen in the last years. In this regard, it is important to carry out an air quality study to identify and quantify air pollutants that threaten works of art. In this study the results of a air quality monitoring campaign carried out at the Beata Vergine dei miracoli Sanctuary, in Saronno (VA, Lombardy Region, Northern Italy), during summer 2022, are presented. A multi-parameter monitoring system able to measure at the same time CO2, NO2, O3 and PM10 was employed. A comparison with outdoor values for the same pollutants was performed with the purpose to understand how outdoor pollutants affect indoor air quality in the Sanctuary. This work is crucial in developing microclimatic conditions and air quality control strategies, to assure that the marvellous works of arts stored in the church will continue to inspire people for the times to come.

George Alexandrakis, Stelios Petrakis, Nikolaos Kampanis
Preliminary assessment of wave energy hazards in a shallow underwater water cultural heritage site

Coastal areas are characterized by high energetic conditions associated with the wave transformation processes and by numerous underwater cultural heritage (UCH) sites whose preservation is crucial given their cultural and economic value. Wave energy is considered a significant hazard driver for the conservation of UCH sites in wave-exposed coasts and may cause the scattering and scouring of archaeological objects, which results in the loss and degradation of the sites. In this paper, the wave energy-induced threats of a coastal site that was revealed due to coastal erosion in the mid-1970s and now is completely submerged in shallow waters, is examined. The results showed that wave energy is a significant threat due to the scouring and weathering phenomena that can detach materials from the structure.

Page 9 of 939 Results 81 - 90 of 9382