Heart Rate Estimation Based on PPG signal and Histogram Filter for Mobile Healthcare. - Juwon Lee; Byeong-Ro Lee (J. Inform. and Commun. Convergence Engineering, 2010)

Design of ICA to Extract Respiration Signal From PPG Signal. - Juwon Lee; Byeong-Ro Lee (J. Inform. and Commun. Convergence Engineering, 2011)