Figure 2
Results of mid-infrared passive spectroscopic imaging using subject A's wrist and back of the hand as measurement sites. (a) Spectral emission map at 9.65 µm of the wrist. (b) Spectral emission map at 9.65 µm of the back of the hand. (c) Emission spectrum of the wrist. (d) Emission spectrum of the back of the hand. The ranges of the color maps in (a,b) were adjusted manually. The red solid line in (c,d) shows the emission spectrum obtained using the proposed method, and the black dashed line shows the absorption spectrum of glucose solution measured using FTIR.
