- Borja Bordel
Department of Telematics Systems Engineering, Universidad Politecnica de Madrid Calle Ramiro de Maeztu, 7, 28040 Madrid, Spain
bbordel@dit.upm.es - Ramon Alcarria
Department of Topographic Engineering and Cartography, Universidad Politecnica de Madrid Calle Ramiro de Maeztu, 7, 28040 Madrid, Spain
ramon.alcarria@upm.es - Miguel Angel Manso
Department of Topographic Engineering and Cartography, Universidad Politecnica de Madrid Calle Ramiro de Maeztu, 7, 28040 Madrid, Spain
m.manso@upm.es - Antonio Jara
Institute of Information System,. University of Applied Sciences Western Switzerland Route de Moutier 14, 2800 Delemont, Switzerland
jara@ieee.org