Table 2 Layer settings for compressed skin.

From: New insights into the origin of remote PPG signals in visible light and infrared

Skin layers

n

d l (cm)

C b

C w

v d (μm)

1-EPI

1.33

0.08

0

0.05

0

2-CL

1.37

0.008

0.0012

0.15

10

3-UP

1.40

0.004

0.0024

0.15

20

4- RD & DP

1.40

0.1

0.024

0.15

20

5-SC

1.44

0.2

0.036

0.35

40