Fig. 2
From: Non-invasive screening of alzheimer’s disease via label-free tri-spectral retinal imaging
Comparison of the optical response captured by the proposed tri-spectral retinal imaging modulefor healthy and pathological subjects. Typical optical response of the proposed tri-spectral retinal imaging modulefor healthy a and pathological b subjects. The images correspond to acquisitions in the red, green, and blue spectral channels. Panels c and d show the average ratiometric images calculated by dividing the blue channel by the green channel for c average heathy subjects and d average pathological subjects.
