BCG	Ballistocardiograph
CIC	Cascaded integrator–comb
CNN	Convolutional neural network
DL	Deep learning
ECG	Electrocardiography
HR	Heart rate
ICA	Independent component analysis
LSTM	Long short-term memory
PCA	Principal component analysis
PPG	Photoplethysmography
ROI	Regions of interest
rPPG	Remote photoplethysmography