1. Robotics, Automation and Computer Vision Group, Department of Electronic Engineering and Automation; University of Jaén; Campus las Lagunillas s/n 23071 Jaén Spain
2. ANDALTEC, Plastic Technological Center; Avd. Principal s/n. Ampliación Polígono Cañada de la Fuente; C/ Vilches s/n 23600 Martos Jaén Spain