Yi GAO, Ying YU, Xu YANG, Shuangxi XIANG. Intelligent trace color separation method based on multi-band light source[J]. Journal of Applied Optics, 2023, 44(1): 46
- Journal of Applied Optics
- Vol. 44, Issue 1, 46 (2023)
Fig. 1. Schematic block diagram of lifting motor for light source movement control
Fig. 2. Schematic diagram of experimental platform
Fig. 3. Flow chart of overall system design
Fig. 4. Diagram of six roles
Fig. 5. Flow chart of FS-SIFT algorithm
Fig. 6. Process of secondary generation Curvelet fusion algorithm
Fig. 7. Partial images of moving trace photography in vertical direction of light source
Fig. 8. Partial images of moving trace photography in horizontal direction of light source
Fig. 9. Photography process of sweat latent fingerprint of gray-white Matt ceramic tile
Fig. 10. Image index analysis in horizontal direction
Fig. 11. Color separation photography of potential fingerprints on surface of orange-red ceramic tiles
Fig. 12. Color separation photography of potential fingerprints on surface of light blue ceramic tiles
Fig. 13. Color separation photography of oil latent fingerprints on surface of light yellow cards
Fig. 14. Feature point extraction of traditional SIFT algorithm
Fig. 15. Feature point extraction of improved FS-SIFT algorithm
Fig. 16. Image registration with traditional SIFT algorithm and image registration with improved FS-SIFT algorithm
Fig. 17. Comparison of fusion trace images of secondary generation Curvelet algorithm
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Table 1. Comparison of indicators of dark field and optimal position trace image
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Table 2. Comparison of indicators of directional reflection and optimal position trace image
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Table 3. Comparison of indicators of grazing incidence and optimal position trace image
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Table 4. Objective evaluation indicators of the best position image and the best position 90 ° image
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Table 5. Characteristic accuracy and time consumption of traditional SIFT algorithm and FS-SIFT algorithm
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Table 6. Objective evaluation indicators of fused image of secondary generation Curvelet algorithm
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