Jintao Yu, Qingling Li, Lei Li, Dayi Yin. Research and Verification of Fingerprint Time Retention Model[J]. Acta Optica Sinica, 2019, 39(5): 0530001
- Acta Optica Sinica
- Vol. 39, Issue 5, 0530001 (2019)
Fig. 1. Excitation spectra
Fig. 2. Flow chart of fingerprint acquisition
Fig. 3. Fingerprint image in each spectral band. (a) 240-280 nm; (b) 280-315 nm; (c) 315-340 nm
Fig. 4. Imaging DN value in each spectral band versus time. (a) 240-280 nm; (b) 280-315 nm; (c) 315-340 nm
Fig. 5. Ratio of DN values in spectral bands 1 and 2 versus time
Fig. 6. Ratio of DN values in spectral bands 3 and 1 versus time
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Table 1. Inversion calculation results for each spectral band
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Table 2. Imaging DN values of five fingerprints at different channels and time
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