A Comparative Study of Cross-Device Finger Vein Recognition Using Classical and Deep Learning Approaches

Figure 12

Correlation histograms of selected PFV device pairs: (a) PFV_C–PFV_C; (b) PFV_L–PFV_L; (c) UTFV–PFV_C; (d) UTFV–PFV_L; (e) PFV_L–PFV_C.

(a)

(b)

(c)

(d)

(e)