Fluorescence lidar measurements at the archaeological site House of Augustus at Palatino, Rome

Valentina Raimondi; Chiara Alisi; Kerstin Barup; Maria Paola Bracciale; Alessandra Broggi; Cinzia Conti; Jenny Hällström; David Lognoli; Lorenzo Palombi; Maria Laura Santarelli; Anna Rosa Sprocati

doi:10.1117/12.2030205

24 October 2013 Fluorescence lidar measurements at the archaeological site House of Augustus at Palatino, Rome

Valentina Raimondi, Chiara Alisi, Kerstin Barup, Maria Paola Bracciale, Alessandra Broggi, Cinzia Conti, Jenny Hällström, David Lognoli, Lorenzo Palombi, Maria Laura Santarelli, Anna Rosa Sprocati

Author Affiliations +

Proceedings Volume 8893, Earth Resources and Environmental Remote Sensing/GIS Applications IV; 88930E (2013) https://doi.org/10.1117/12.2030205
Event: SPIE Remote Sensing, 2013, Dresden, Germany

Abstract

Early diagnostics and documentation fulfill an essential role for an effective planning of conservation and restoration of cultural heritage assets. In particular, remote sensing techniques that do not require the use of scaffolds or lifts, such as fluoresence lidar, can provide useful information to obtain an overall assessment of the status of the investigated surfaces and can be exploited to address analytical studies in selected areas. Here we present the results of a joint Italian-Swedish project focused on documenting and recording the status of some sections of the part closed to the public by using fluorescence hyperspectral imaging lidar. The lidar used a tripled-frequency Nd:YAG laser emitting at 355 nm as excitation source and an intensified, gated 512x512-pixel CCD as detector. The lidar had imaging capabilities thanks to a computer-controlled scanning mirror. The fluorescence characteristics of fresco wall paintings were compared to those of fresco fragments found at the same archaeological site and separately examined in the lab using FT-IR and Raman techniques for the identification of pigments. The fluorescence lidar was also used to remotely detect the growth of phototrophic biodeteriogens on the walls. The fluorescence lidar data were compared with results from biological sampling, cultivation and laboratory analysis by molecular techniques.

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Valentina Raimondi, Chiara Alisi, Kerstin Barup, Maria Paola Bracciale, Alessandra Broggi, Cinzia Conti, Jenny Hällström, David Lognoli, Lorenzo Palombi, Maria Laura Santarelli, and Anna Rosa Sprocati "Fluorescence lidar measurements at the archaeological site House of Augustus at Palatino, Rome", Proc. SPIE 8893, Earth Resources and Environmental Remote Sensing/GIS Applications IV, 88930E (24 October 2013); https://doi.org/10.1117/12.2030205

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