Fluorescence lidar imaging of the cathedral and baptistery of Parma

Fluorescence lidar imaging of fungal growth on high-voltage outdoor composite insulators

“…Algal growth, exhibiting a characteristic fluorescence peak due to chlorophyll a at about 685 nm, could readily be detected from a surface by a frequency-tripled Nd:YAG laser generating radiation at 355 nm. The imaging of algae on insulators [5] followed similar previous investigations, such as fluorescence imaging of vegetation status [6] and the monitoring of vegetation on historical monuments [7,8]. In the present paper, we report on remote fluorescence studies of the fungal growth on insulator surfaces.…”

A fluorescence imaging lidar for the control of cultural heritage

“…The results showed good potential for achieving thematic maps aimed at the characterization of the lithotypes and the detection and characterization of biodeteriogens. In the following years, lidar multispectral imaging has been applied on several monuments as the Cathedral and Baptistery of Parma (Italy) 17 , the roman archeological site of Adamclisi (Romania) 18 , the Coliseum and the Baptistery of San Giovanni in Laterano (Rome) 19 .…”

“…The CNR-IFAC lidar system, the FLIDAR3 ® , is an excimer-based fluorescence lidar system that has been repeatedly used for fluorescence remote sensing of monuments since 1994 10,17 . It uses an excimer laser (XeCl @308 nm) as an excitation source.…”

Environmental monitoring using optical techniques

“…Full fluorescence spectra were recorded in each image point and multi-variate analysis was employed for data presentation. A field campaign for similar measurements in Parma, Italy, was recently performed [26].…”