Innovative diagnostics through Hypercolorimetric Multispectral Imaging and Pulse compression Thermography to support the restoration of a 16th wall painting in Palazzo Gallo (Bagnaia, Italy)
Riccardo Vettraino, Valeria Valentini, Paola Pogliani, Marco Ricci, Stefano Laureti, Serena Calvelli, Giovanni Messina, Luca Lanteri, Claudia Pelosi
Abstract:
This paper summarizes the main results of the study, restoration and diagnostics applied to the 16th century wall painting (a portion of the frieze and the Riario coat of arms) in Palazzo Gallo (Bagnaia, Viterbo – Central Italy) recently concluded and object of a master's degree work in Conservation and Restoration of Cultural Heritage. Innovative imaging techniques were used for the first time on a wall painting on-site: Hypercolorimetric Multispectral Imaging (HMI) and Pulse-compression Thermography (PuCT), combined with more traditional analysis. Multispectral imaging allowed for mapping the conservation status before and after the removal of the scialbo layer that covered the original paintings. It also allowed to compare between different areas of the painting and to verify the effectiveness of the cleaning. PuCT allowed to detect cracks and discontinuities in the ground layers and to evaluate the depth of such anomalies giving a valuable support in the consolidation step.
Download:
IMEKO-TC4-MetroArchaeo2022-018.pdf
DOI:
10.21014/tc4-ARC-2022.018
Event details
IMEKO TC:
TC4
Event name:
TC4 MetroArchaeo 2022
Title:

IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

Place:
Consenca, ITALY
Time:
19 September 2022 - 21 September 2022
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