Geographic multidimensional approach for decay analysis of Gymnasium frescoes in Pompeii. Preliminary results

Maria Danese, Maria Sileo, Nicola Masini

Abstract

The monitoring of the state of conservation of frescoes is still nowadays a crucial problem in the field of cultural heritage protection. With this aim, in the last years non-invasive diagnostics techniques have been introduced. However, even if they are widely considered an essential tool for knowledge, diagnostics for conservation is still struggling to establish itself in the operational practice. This is due to several reasons, including the still high costs, the difficulty of processing and interpretation of the acquired data, the lack of recognized operating protocols. In particular, from the point of view of processing, the integration of different techniques returns a very large dataset, where it is not easy to extract multi-temporal and spatial patterns that could tell us valuable information about the state of conservation of the analyzed fresco. Visual analytics methodology is an useful help for pattern extraction in large datasets. In this work a wall of the Gymnasium of the Sarno Baths (located in Regio VIII) have been studied with the following non-invasive techniques: - Structure-from-motion photogrammetry (SfM) - GPR survey - Multitemporal Infrared Thermography (MIRT). Preliminary results of the integration of SfM, GPR and MIRT enabled to provide information on the decay pathologies of frescoes. In this paper in particular, preliminary results of the GPR analysis with the geovisual analytics approach are showed, with the aim to facilitate the identification and interpretation of decay patterns of the Gymnasium's fresco.

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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