Shobana T S, M Dakshayini, and K R Venugopal. 2026. “Review on Contactless Vital Sign Monitoring: Techniques and Applications of Remote Photoplethysmography and Photoplethysmography for Remote Health Monitoring”. International Journal of Computer Information Systems and Industrial Management Applications 18 (4s):1376-83. https://doi.org/10.70917/ijcisim-2026-2643.