Prof. Dr. Guohua Lu received his B.S. degree and M.S. degree in biomedical engineering from the Fourth Military Medical University, China in 1999 and 2002, respectively. He received a Ph.D. degree in biophysics at the Fourth Military Medical University, China in 2002. He was an academic visitor to the Department of Physiology at the University of Oxford from 2007 to 2009. He is an associated professor of the Department of Military Biomedical Engineering at the Air Force Medical University, China. His research interest includes bio-signal processing, contact-free measurement of physiological signals, remote sensing of the lifeform of human subjects and image processing.