Fig. 8
From: Remote photoplethysmography with constrained ICA using periodicity and chrominance constraints
Correlation comparison plots for ICA vs cICA. a ICA for UBFC-RPPG/SIMPLE, b cICA for UBFC-RPPG/SIMPLE, c ICA for UBFC-RPPG/REALISTIC, d cICA for UBFC-RPPG/REALISTIC, e ICA for MMSE-HR, f cICA for MMSE-HR