The Impact of Illumination on Finger Vascular Pattern Recognition

Figure 12

The vascular pattern of the same finger captured using top illumination and narrow beams in three sessions (a) first session, (b) the second session, (c) the third session, and (d) overlaid three sessions of finger vein patterns: session 1 (red), session 2 (green), and session 3 (blue).

(a)

(b)

(c)

(d)