1. Associate Professor, Dept. of Geomatics Engineering, Istanbul Technical Univ., Maslak, Istanbul 34469, Turkey.
2. Associate Professor, Dept. of Engineering Technology, New Jersey Institute of Technology, University Heights, Newark, NJ 07102 (corresponding author).
3. Assistant Professor, Dept. of Geomatics Engineering, Istanbul Technical Univ., Maslak, Istanbul 34469, Turkey.