Tran, Thi-Thao, Truong Pham Van, and Phan Dai Duong. “A Remote PPG Based Approach for Heart Rate Estimation”. Journal of Military Science and Technology, no. 79 (May 19, 2022): 31–40. Accessed December 22, 2024. https://online.jmst.info/index.php/jmst/article/view/461.