Search results for "Spectrophotometric data"
showing 2 items of 2 documents
Mosaic floors of roman Villa del Casale: Principal component analysis on spectrophotometric and colorimetric data
2013
Abstract Spectrophotometric and colorimetric data obtained during a measurement campaign aimed at supporting the Roman "Villa del Casale" (Piazza Armerina, Sicily, Italy) conservation activities, are presented. Special attention was paid to the possible variation of the chromatic coordinates, possibly due to the interventions of cleaning, consolidation, and protection. Data have been analyzed by the Principal Component Analysis (PCA) statistical technique, with the attempt to investigate its role in data variability reduction and verify its effectiveness in interpreting the phenomena occurring on the mosaic surface of the Villa, through grouping the observations into homogenous clusters. Ef…
Spectrophotometric investigations at the museum: monitoring of colour changes during differentiated cleaning of the marble statues
2011
The spectrophotometric investigations carried out during the cleaning treatments on the marble surface provide an useful support for choosing the best method to employ by monitoring, before and after the tests, both the chromatic coordinates and the spectral reflectance. Moreover, the colorimetric measurements allow us to evaluate the goodness of the chromatic level and the uniformity of the cleaned areas. The Laboratory of Physics and Indoor Environment of the Regional Center for Planning and Restoration has carried out the spectrophotometric investigations on the marble statues belonging to the Renaissance statuary collection of the Regional Gallery of Sicily Palazzo Abatellis in Palermo …