PolyU's Proprietary Optical Fiber Sensing Network for Railway Monitoring Exported Overseas (IMAGE) The Hong Kong Polytechnic University Caption Professor Lee Kang-kuen (left), Professor of Transportation Practice, Department of Electrical Engineering, PolyU; Professor Tam Hwa-yaw (middle), Chair Professor of Photonics and Head of Department of Electrical Engineering, PolyU; and Dr. Tan Chee Keong (right), Deputy Director, SMRT, Singapore. Credit The Hong Kong Polytechnic University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.