Lucia Toniolo is Full Professor of Material Science and Technology (SSD ING/IND22) in the Faculty of Civil Architecture, Politecnico di Milano, where she is in charge of the courses Materials in Architecture, Laboratory of Architectural Restoration, and Durability of Materials in Architecture. In 2011, she was appointed President of the Center for Conservation and Promotion of Cultural Heritage of the Politecnico di Milano, having previously been Vice-President. Since 2006 she has been the Scientific Advisor on Laboratory Materials and Methods for Cultural Heritage in the Department of Chemistry, Materials, and Material Engineering. Professor Toniolo has been scientific coordinator of various important activities and research projects. She is currently scientific advisor on the project “Monitoring of the façade of Milan Cathedral”. She has held scientific responsibility for various projects of the Ministry of Education, Universities, and Research (MIUR-PRIN). Her main research areas are: (a) chemical and morphological characterization of materials of cultural heritage (particularly natural stones, mortars and plasters, mural paintings, ceramic materials, polychrome surfaces, and polymeric items); (b) characterization and evaluation of polymeric treatments applied to cultural heritage; and (c) micro- and non-invasive spectroscopic characterization of materials. Professor Toniolo is the author of more than 60 scientific publications in international journals (H index 16) and 150 publications in proceedings of international conferences, books etc. Gabriele Guidi received his M.S. Degree in Electronic Engineering in 1988 from the University of Florence, and Ph.D. in 1992 from the University of Bologna, Italy. He is Associate Professor at Politecnico di Milano. He worked for more than 10 years on researches about ultrasound equipment for biomedical imaging. Since 2000 he reoriented his activity by applying imaging technologies to the field of noncontact 3D measurement. He has been working on applications of 3D imaging in various fields, with special emphasis to Industrial Design and Cultural Heritage documentation. Dr. Guidi is Senior Member of the IEEE. He works as reviewer of a few international journals such as “The IEEE Transactions on System, Man and Cybernetics”, “The IEEE Transactions on Image Processing” and “Machine Vision and Applications” (Springer).