Hettiri Messaoud, currently a teacher researcher at the Department of Electrical Engineering at University of Eloued (Algeria) and member in Laboratory of Electrical Engineering and Renewable Energies of El-Oued. Assistant professor at the University of El-oued from October 01, 2006 until 12/31/2007. Assistant teacher class “B” from 01/01/2008 until 06/12/2009. Assistant teacher class “A” from 07/12/2009 until 03/07/2018. Lecturer class B since 04/07/2018. Currently Associate Professor since July 2019. His research areas are signal processing and image processing.