Yushin Ahn is an Associate Professor in the Department of Civil and Geomatics Engineering at California State University, Fresno. He received a B.Eng. in Civil Engineering and an M.Sc. in Surveying and Digital Photogrammetry from Inha University, Korea, and an M.Sc. and Ph.D. in Geodetic Science from The Ohio State University. His research focuses on digital photogrammetry, LiDAR and remote sensing applications, and geospatial data analysis for transportation and infrastructure systems. Dr. Ahn is a certified Photogrammetrist and the recipient of the Robert E. Altenhofen Memorial Scholarship from the American Society for Photogrammetry and Remote Sensing.