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Proceedings Paper

Hyperspectral remote sensing techniques applied to the noninvasive investigation of mural paintings: a feasibility study carried out on a wall painting by Beato Angelico in Florence
Author(s): Costanza Cucci; Marcello Picollo; Leandro Chiarantini; Barbara Sereni
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Paper Abstract

Nowadays hyperspectral imaging is a well-established methodology for the non-invasive diagnostics of polychrome surfaces, and is increasingly utilized in museums and conservation laboratories for documentation purposes and in support of restoration procedures. However, so far the applications of hyperspectral imaging have been mainly limited to easel paintings or paper-based artifacts. Indeed, specifically designed hyperspectral imagers, are usually used for applications in museum context. These devices work at short-distances from the targets and cover limited size surfaces. Instead, almost still unexplored remain the applications of hyperspectral imaging to the investigations of frescoes and large size mural paintings. For this type of artworks a remote sensing approach, based on sensors capable of acquiring hyperspectral data from distances of the order of tens of meters, is needed.

This paper illustrates an application of hyperspectral remote sensing to an important wall-painting by Beato Angelico, located in the San Marco Museum in Florence. Measurements were carried out using a re-adapted version of the Galileo Avionica Multisensor Hyperspectral System (SIM-GA), an avionic hyperspectral imager originally designed for applications from mobile platforms. This system operates in the 400-2500 nm range with over 700 channels, thus guaranteeing acquisition of high resolution hyperspectral data exploitable for materials identification and mapping. In the present application, the SIM-GA device was mounted on a static scanning platform for ground-based applications. The preliminary results obtained on the Angelico’s wall-painting are discussed, with highlights on the main technical issues addressed to optimize the SIM-GA system for new applications on cultural assets.

Paper Details

Date Published: 30 June 2015
PDF: 9 pages
Proc. SPIE 9527, Optics for Arts, Architecture, and Archaeology V, 95270P (30 June 2015); doi: 10.1117/12.2184743
Show Author Affiliations
Costanza Cucci, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
Marcello Picollo, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
Leandro Chiarantini, Selex ES, A Finmeccanica Co. (Italy)
Barbara Sereni, Selex ES, A Finmeccanica Co. (Italy)

Published in SPIE Proceedings Vol. 9527:
Optics for Arts, Architecture, and Archaeology V
Luca Pezzati; Piotr Targowski, Editor(s)

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