Ningfang Liao received his BS, MS, and PhD degrees from Beijing Institute of Technology. He is currently a professor in the National Laboratory of Color Science and Engineering in School of Optics and Photonics in Beijing Institute of Technology University, China. His research interests include color science and image technology, including color appearance models, color difference formula evaluation, color management system, computer color matching, and multispectral imaging. He published two books, has published over 70 papers.