Bahadir ERGUN, born in 1974. He graduated his bachelorâ€™s degree in 1996. He graduated in 1999 as master of science in Geodesy and Photogrammetry Engineering and obtained his doctorate in 2003 in Photogrammetry Engineering, all of from Istanbul Technical University. He worked as Research Assistant between 1997-2003 in Istanbul Technical University Photogrammetry Department. He has been since 2003 Associate Professor in Gebze Institute of Technology Geodesy and Photogrammetry Department in Turkey. He has held research assignments in TU Berlin Photogrammetry Department in 2001.