Design of a Portable Gait Profiler With Uneven Surface and Low-Light Adaptability. - David John Saldanha; Swaminathan Meenatchi Sundaram; Manikandan Natarajan; Shreeraksha Arunachala Chandavar; Sucheta V. Kolekar; T. R. S. Vishnu Kumar; Sandeepkumar Mandal; Gaurav Karunakara Poojary (IEEE Access, 2026)