Liukui Chen received B.E. and Ph.D. degrees from Wuhan University, Wuhan, China, in 2002 and 2010, respectively. He is currently an associate professor at the School of Intelligent Technology and Engineering, Chongqing University of Science and Technology, Chongqing, China. His current research and application interests include finger/hand/palm vein feature extraction, recognition, and vivo detection based on deep learning networks.