1. Department of Electrical Engineering and Information Technology (DIETI), Universita’ degli Studi di Napoli Federico II, Naples, Italy
2. Augmented Reality for Health Monitoring Laboratory (ARHeMLab), Italy
3. Institute of Cognitive Sciences and Technologies, National Research Council (ISTC-CNR), Rome, Italy
4. Department of Electronics and Telecommunications (DET), Politecnico di Torino, Turin, Italy