Kharroubi Abderrazzaq is a State Engineer in Surveying (class of 2019). He is currently a Ph.D. candidate at the Geomatics Unit of the University of Liege, under the supervision of Prof. Roland Billen. His research is financed by FNRS aspirant grant from the Fonds de la recherche scientifique (F.R.S.-FNRS) since october 2021. His research activity is focused on the automatic processing and structuration of 3D point clouds for 3D change mapping applications.