1. Institute of New Imaging Technologies, Universitat Jaume I, Castellón, Spain. E-mails: jtorres@uji.es, montoliu@uji.es, belfern@uji.es, strilles@uji.es
2. Algoritmi Research Centre, University of Minho, Portugal. E-mails: adriano.moreira@algoritmi.uminho.pt, joao.nicolau@algoritmi.uminho.pt, antonio.costa@algoritmi.uminho.pt
3. Faculty for Computer Science, Mathematics and Geomatics, HFT Stuttgart – Stuttgart University of Applied Sciences, Schellingstr. 24, 70174 Stuttgart, Germany. E-mails: stefan.knauth@hft-stuttgart.de, athanasios.koukofikis@hft-stuttgart.de
4. IDLab, Faculty of Applied Engineering, University of Antwerp – imec, Groenenborgerlaan 171, 2020 Antwerpen, Belgium. E-mails: rafael.berkvens@uantwerpen.be, maarten.weyn@uantwerpen.be
5. Centro de Computação Gráfica (CCG), Portugal. E-mail: filipe.meneses@ccg.pt
6. ENM, Faculty of Applied Economics, University of Antwerp, Prinsstraat 13, 2000 Antwerpen, Belgium. E-mail: herbert.peremans@uantwerpen.be