1. Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
2. Philips Research, Eindhoven, The Netherlands
3. School of Information Science and Technology, ShanghaiTech University, Shanghai, China
4. Department of Neonatology, Máxima Medical Centre, Veldhoven, The Netherlands
5. Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands