Song Heng received the B.E., M.E. and Ph.D. degree in communication and information system from Air Force Engineering University, Xi’an, China, in 2001, 2004 and 2007, respectively. Now, he works as a researcher at DewertOkin Technology Group Co., Ltd, Jiaxing, Zhejiang, China. He also worked as a professor at Chongqing Technology and Business University, Chongqing, China. He also worked as a technical consultant at DePai (Jiaxing) medical equipment Co., Ltd., Jiaxing, Zhejiang, China. His current research interests include object detection, multi-task learning, etc.