Wang Feng, Jia Rong, Liu Xiao, Zhai Hao, Wang Sunchen, Wu Yunzhi. Study on UV polarization reflection characteristics of sweat latent fingerprints(Invited)[J]. Infrared and Laser Engineering, 2020, 49(6): 20201011
- Infrared and Laser Engineering
- Vol. 49, Issue 6, 20201011 (2020)
Fig. 1. PBRDF geometric relationship diagram
Fig. 2. Experimental flow chart
Fig. 3. UV polarization imaging detection system: (a) Appearance; (b) Top view
Fig. 4. Xenon light source: (a) Physical map; (b) Spot
Fig. 5. Fingerprint samples: (a)Glass mirror; (b) Metallic lacquered board; (c) Ceramic tile; (d) Plastic plate; (e) Convex paperboard; (f) Printing paper
Fig. 6. Sweat latent fingerprint polarization parameter analysis: (a) S 0 map; (b) S 1 map; (c) S 2 map; (d) E x map; (e)E x -E y graph; (f)E y map; (g) PDI map; (h) AOP map; (i) DOLP map
Fig. 7. Sweat latent fingerprint reflectance curve
Fig. 8. Polarization parameters of sweat latent fingerprints at multiple angles: (a) S 0 map; (b) S 1 map; (c) S 2 map; (d) Ex map; (e)Ex -Ey map; (f) Ey map; (g) PDI map; (h) AOP map; (i) DOLP map
Fig. 9. Polarization parameter variation under multi-band of sweat latent fingerprint: (a) S 0 map; (b) S 1 map; (c) S 2 map; (d) Ex map; (e)Ex -Ey map; (f) Ey graph; (g) PDI map; (h) AOP map; (i) DOLP map
Fig. 10. Polarization parameters of latent fingerprints of different guest materials: (a) S 0 map; (b) S 1 map; (c) S 2 map; (d) Ex map; (e) Ex -Ey map; (f) Ey map; (g) PDI map; (h) AOP map; (i) DOLP map
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Table 1. Xenon light source performance indicators
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Table 2. Sweat latent fingerprint Brewster angle
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