Uznir Ujang, head of the 3D GIS Research Group, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia (UTM). Interests include 3D city modelling, 3D GIS, topology and Geographical Information Science (GISc). He has more than 90 publications in international journals, conferences and books and is actively involved in scientific committees all around the globe. He is an active member of the International Society for Photogrammetry and Remote Sensing (ISPRS), the Royal Institution of Surveyors Malaysia (RISM) and the Institution of Geospatial and Remote Sensing Malaysia (IGRSM), and is a Professional Technologist on the Malaysia Board of Technologists (MBOT).

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