Diagnostic of artworks using shearography and 3D scan

Artworks require special attention and must be examined not only to ensure a careful restoration process but also to maintain a proper conservation status. By utilizing both shearography and 3D scanning, we find an approach to assess the conservation condition of the supports for different artworks, and if these measurements are taken overtime, they can facilitate a monitoring program for the art pieces. Shearography is an interferometric method employed to assess cracks, surface deformations, and subsurface issues. In the art diagnostic field, this technique has detected numerous issues within artifacts that conservators or during restoration may not immediately see. The 3D-digitization of art pieces through structured light scans is widely known, mainly used for artworks digital cataloguing; we intend to exploit it to achieve structural and surface information and integrate it with surface and subsurface diagnostics obtained by the shearography technique. The outcomes from the case studies are quite encouraging for assessing structural issues and simplifying solutions for both conservations and restores. The case study focuses on three case study: a wooden panel painting named Transmission of the Franciscan Rule by Colantonio, a canvas artwork called Pericles observes Phidias’s artwork on the Parthenon made by Landi, both preserved in the Royal Museum of Capodimonte and a violin (private collection) crafted by Alfredo Contino.