Applications of hyperspectral imaging for cultural heritage conservation
Through the presentation of real case studies, different applications to the art conservation field are shown: limitations and potential of hyperspectral imaging for the documentation of the artistic technique, the materials distribution and the presence of any under-drawing or pentimenti, are highlighted. To improve the exploitation of the “image cube”, different algorithms can be applied to reduce the size of the data set: the use of different statistical approaches will be described, showing how hyperspectral imaging can answer some key questions in conservation.
Marcello Picollo
Graduate in Geology at the University of Florence, with PhD in Photonics (thesis title: “Study of artworks by using non-invasive UV-VIS-IR spectroscopic and thz-TDS imaging techniques”) at the University of Eastern Finland (UEF), Joensuu (Finland), has been a researcher at IFAC-CNR since 2001. Since 1991 he has been working in the study of works of art using spectroscopic techniques. In particular, he deals with the analysis of artistic materials, such as pigments and dyes, using specific spectroscopic techniques and non-invasive areas. Since 2009 he has been responsible for the SABeC Research Group Spectroscopy Applied to Cultural Heritage.