1. Istituto Italiano di Tecnologia,Unit for Visually Impaired People,Genova,Italy
2. PSL University, CNRS,Laboratoire des systèmes perceptifs,Departement d'études cognitives, École normale supérieure,Paris,France,75005
3. Università degli studi di Genova,Department of Informatics, Bioengineering Robotics and Systems Engineering,Genova,Italy
4. Vision Rehabilitation Center, David Chiossone Foundation,Genova,Italy