Wolfgang Förstner, born in 1946, studied Geodesy until 1971 and received his PhD 1976 at Stuttgart University. After 3 years work at the Survey Department of Northrhine Westfalia in Bonn, he was scientist at the Institute for Photogrammetry of Stuttgart University. Since 1990 he has been head of the Department of Photogrammetry at the Institute for Geodesy and Geoinformation, University Bonn. His main interests are image analysis, pattern recognition, machine learning, geometric reasoning, statistical and semantic modelling. He published more than 100 papers, supervised approximately 70 Bachelor and Master theses, and more than 20 PhD theses. He was Vice President of the German Association for Pattern Recognition (DAGM) 1994-2001, president of ISPRS Commission III ‘Photogrammetric Computer Vision’ from 2004-2008 and chairs the ISPRS Intercommission Working Group in ‘Pattern Recognition in Remote Sensing’. Since 2006 he is associated editor of the journal IEEE Transactions of Pattern Analysis and Machine Intelligence. He received the Carl Pulfrich Award in 1987, the ISPRS Cassinis Award 2000 and the ASPRS Fairchild Award 2005.