Emmanuel Baltsavias Editor

Zhilin Li is Professor in Geo-Informatics at the Hong Kong Polytechnic University. He is Co-Chair of the Scientific Programme Committee of the XXIth ISPRS Congress and Vice President of the International Cartographic Association (ICA). His current research interests include multi-scale modelling and representation of spatial data, digital terrain modelling, spatial relations and spatial information theories, and remote image processing.

Jun Chen is President of the National Geomatics Center of China, and is Congress Director of the XXIst ISPRS Congress (Beiijng, China, 3-11 July 2008). His research interests include dynamic and multi-dimensional GIS, spatial data infrastructures, spatial data updating, and collaborative decision-making systems.

Emmanuel Baltsavias is currently Senior Scientist and Lecturer at the Institute of Geodesy and Photogrammetry, ETH Zurich. He is Second Vice President of ISPRS. His research interests include automated extraction and classification of objects, data and information fusion, processing of high spatial resolution optical sensors, investigations of airborne digital photogrammetric cameras, applications in forestry, natural hazards and cultural heritage.