Integration of imaging analysis and 3D laser relief of artworks: a powerful diagnostic tool

When analysing a work of art, imaging data from multiple sources can be effectively integrated and added to a 3D digital model, in order to form an improved multi-dimensional dataset. Herein we present the IR-colour reflectography, the UV fluorescence and the 3D microprofilometry diagnostic devices, developed at INOA, and we discuss the integration of 2D and 3D datasets, the former giving information of the surface (or nearly sub-surface) properties of a painting, the latter giving shape information of the surface itself.