Open AccessHyperspectral fluorescence lidar imaging at the Colosseum, Rome: Elucidating past conservation interventions
Author(s) -
Lorenzo Palombi,
David Lognoli,
Valentina Raimondi,
Giovanna Cecchi,
Jenny Hällström,
Kerstin Barup,
Cinzia Conti,
Rasmus Grönlund,
Ann Johansson,
Sune Svanberg
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.006794
Subject(s) - hyperspectral imaging , lidar , remote sensing , cultural heritage , multispectral image , conservation , environmental science , geology , computer science , geography , archaeology , environmental planning
Fluorescence lidar techniques offer considerable potential for remote, non-invasive diagnostics of stone cultural heritage in the outdoor environment. Here we present the results of a joint Italian-Swedish experiment, deploying two hyperspectral fluorescence lidar imaging systems, for the documentation of past conservation interventions on the Colosseum, Rome. Several portions of the monument were scanned and we show that it was possible to discriminate among masonry materials, reinforcement structures and protective coatings inserted during past conservation interventions, on the basis of their fluorescence signatures, providing useful information for a first quick, large-scale in situ screening of the monument.