Dr. Polychronis Kolokoussis holds a diploma in rural and surveying engineering from NTUA (1993) and a Ph.D. degree from NTUA (2008). Since 1998, he has been employed as a senior research assistant at the Remote Sensing Laboratory, School of Rural and Surveying Engineering, NTUA. He participates in lectures on remote sensing at the under- and postgraduate levels and has significant expertise in the fields of photo-interpretation, remote sensing, digital image processing, their applications and their integration with GIS. During the last few years, his research interests have been focused on the acquisition and processing of hyperspectral and thermal remote sensing imagery as well as object-based image analysis, with an emphasis on techniques used for identifying changes and protecting the natural environment. He has published his work in several international journals and conferences and has participated in more than twenty national and European research projects. He is a reviewer for many international journals, e.g., Springer, Elsevier, Taylor & Francis, Wiley, MDPI, and Bowen, as well as an evaluator of H2020 Earth Observation proposals.