1. Department of Biosystems, KU Leuven, Division of Crop Biotechnics, Willem de Croylaan 34, Leuven, BE-3001, Belgium
2. Royal Belgian Institute of Natural Sciences, Directorate Natural Environment, Gulledelle 100, Brussels, BE-1200, Belgium
3. Departamento de Ciencias Forestales, Laboratorio de Biometría, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
4. Flemish Institute for Technological Research (VITO), Remote Sensing Unit, Boeretang 200, Mol, BE-2400, Belgium
5. Department of Geoinformation Processing, Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 54 217, Enschede, 7500 AE, The Netherlands