1. Department of Electrical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
2. Discipline of Electrical Engineering, Indian Institute of Technology Indore, Indore 453552, India
3. Department of Ophthalmology, Kasturba Medical College, Manipal 576104, India
4. Department of Electronics and Computer Engineering, Ngee Ann Polytechnic, Singapore 599489, Singapore