Figure 3
From: Early stage dental caries detection using near infrared spatial frequency domain imaging
Visible images (top) and reduced scattering coefficients (bottom) for four teeth labelled (a–d). Black arrows point to cavities identified both with visible imaging and through reduced scattering coefficient, red arrows highlight cavities or demineralization identified only through reduced scattering coefficient, and blue arrows highlight surface defects that are observed in visible images but that do not significantly affect reduced scattering coefficient.
