Fig. 5.

Simulated spectra of diffuse reflectance from biotissue phantom (a, b) at different embedding depths $d$ of blood layer and oxygen saturation $S$. Simulated reflectance spectra for human skin at different values of blood volume coefficient $K_b$ – (c), blood oxygen saturation $S$ – (d), melanin concentration $K_{mel}$ – (e) and epidermis thickness coefficient $K_{epi}$ – (f).