Artistic surfaces at the Bishop's Palace of Frascati were investigated using an integrated approach involving different non-invasive diagnostic techniques. A novel remote methodology aimed at the detection and location of materials from previous restoration actions as well as the monitoring of degradation processes is proposed. In this novel approach, a laser-induced fluorescence (LIF) scanning system was used in synergy with a red-green-blue imaging topological radar 3D laser scanner and the structure from motion technique for 3D photogrammetric reconstruction. The spectral characteristics of the obtained LIF images permitted us to identify restoration materials and bio-deteriorated areas even when they were not visible to the naked eye. The superimposition of LIF and 3D images allowed for an optimised localisation of the areas of interest. The periodic repetition of this integrated approach could be used as a tool to monitor degradation processes as it could identify structural and chemical changes that occur in these areas of interest. The presented results could support the conservation, study and dissemination of cultural heritage items, keeping in mind that integration with information obtained through other innovative and standard analytical techniques is always fundamental.
Non-invasive diagnostic investigation at the Bishop's Palace of Frascati: An integrated approach
Caneve L.;Colao F.;Francucci M.;Guarneri M.;Mongelli M.;Spizzichino V.
2021-01-01
Abstract
Artistic surfaces at the Bishop's Palace of Frascati were investigated using an integrated approach involving different non-invasive diagnostic techniques. A novel remote methodology aimed at the detection and location of materials from previous restoration actions as well as the monitoring of degradation processes is proposed. In this novel approach, a laser-induced fluorescence (LIF) scanning system was used in synergy with a red-green-blue imaging topological radar 3D laser scanner and the structure from motion technique for 3D photogrammetric reconstruction. The spectral characteristics of the obtained LIF images permitted us to identify restoration materials and bio-deteriorated areas even when they were not visible to the naked eye. The superimposition of LIF and 3D images allowed for an optimised localisation of the areas of interest. The periodic repetition of this integrated approach could be used as a tool to monitor degradation processes as it could identify structural and chemical changes that occur in these areas of interest. The presented results could support the conservation, study and dissemination of cultural heritage items, keeping in mind that integration with information obtained through other innovative and standard analytical techniques is always fundamental.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
