Xiaodong Zhang received a B.S. degree in electronic engineering from Zhengzhou University, Zhengzhou, China, in 2000, as well as master's and doctoral degrees in measurement technology and instruments from Tianjin University, Tianjin, China, in 2003 and 2007, respectively. His research interests include optical freeform surface manufacturing, hard and brittle material processing, precision measurement, visual inspection, high-precision industrial on-site inspection, and artificial intelligence.