1. ReDCAD LaboratoryUniversity of Sfax, National School of Engineers of Sfax B.P. 1173, 3038 Sfax Tunisia
2. Digital Research Center of Sfax B.P. 275, Sakiet Ezzit, 3021 Sfax Tunisia
3. LAAS‐CNRSUniversity of Toulouse 7 avenue Colonel Roche, 31077 Toulouse France