1. Laboratoire Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Grenoble Alpes, CNRS, Grenoble INP, Grenoble, France
2. Department of Telecommunications, Research Center for Spatial Information, University Politehnica of Bucharest, Bucharest, Romania
3. Department of Telecommunications, University Politehnica of Bucharest, Bucharest, Romania