Motion Robust Remote Photoplethysmography Measurement During Exercise for Contactless Physical Activity Intensity Detection. - Yi-Chiao Wu; Li-Wen Chiu; Bing-Fei Wu; Linda Li-Chuan Lin; Tsai-Hsuan Ho; Meng-Liang Chung; Shou-Fang Wu (IEEE Trans. Instrum. Meas., 2023)