
Touchless Fingerprint Recognition
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Projector(a) (b) (c)White led Blue LED with light diffuser
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Figure 5.14 Schema of the proposed acquisition setups for computing three-
dimensional fingerprint models: (a) three-dimensional Method A, (b) three-
dimensional Method B, and (c) three-dimensional Method C.
Figure 5.15 Portion of the alternate-square projected pattern used by three-
dimensional Method A. (R. Donida Labati et al., Fast 3-D fingertip reconstruction
using a single two-view structured light acquisition, in
Proceedings of the IEEE
Workshop on Biometric Measurements and