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

Figure 11

Cosine similarity histograms of single-device settings with CAE: (a) UTFV–UTFV; (b) ZkTeco–ZkTeco; (c) IDIAP–IDIAP; (d) NTNU–NTNU; (e) UTFV–ZkTeco; (f) UTFV–IDIAP; (g) IDIAP–ZkTeco; (h) NTNU–ZkTeco.

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