Fig. 2From: Blood pulsation measurement using cameras operating in visible light: limitationsSelected processing steps: a images L BINR (m,n,i), L BING (m,n,i) and L BINB (m,n,i); b image L BIN (m,n,i); c image L STB (m,n,i); d the graph of changes in the mean brightness of L r (i) for subsequent images of the sequence for r = 3Back to article page