Abstract.
Extensive fluorescence multispectral imaging of the cathedral and baptistery of Parma, Italy, is reported and discussed. In particular, the first fluorescence imaging data from protection-treated stony materials were recorded. Fluorescence spectra were taken with a mobile lidar system scanning the monument surfaces with a frequency-tripled Nd:YAG laser beam from a distance of about 80 m. For each pixel of the area investigated, a high-spectral-resolution spectrum in the full visible range was acquired. The principal-component analysis technique was used to obtain thematic maps that outlined areas subject to protective treatment and biological growth, and other features, such as different types of stones and decoration pigments.
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Received: 24 July 2002 / Revised version: 16 January 2003 / Published online: 3 April 2003
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Lognoli, D., Cecchi, G., Mochi, I. et al. Fluorescence lidar imaging of the cathedral and baptistery of Parma . Appl Phys B 76, 457–465 (2003). https://doi.org/10.1007/s00340-003-1126-6
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DOI: https://doi.org/10.1007/s00340-003-1126-6