Walter C.P.M. Blondel was born in Nancy, France, in 1968. He received the electrical engineering degree from ESIGELEC Rouen (France) in 1991, the M.Sc. degree in optoelectronics from Hertsfordshire University (U.K.) in 1992, and the Ph.D. degree in biological and medical engineering from the Université Henri Poincaré (France) in 2000. Currently, he is a Professor at Université de Lorraine (France), heading the M.Sc. in Health Engineering and the Health Sciences and Engineering department at the faculty of medicine in Nancy (France). He’s leading the research group interactions of light with biological tissues at the CRAN laboratory (France) and his research fields of interest are in: UV-Vis-NIR optical spectroscopy and imaging for in vivo characterization of biological tissues, light-tissue interactions modelling, multidimensional data processing and machine learning.