Bo Zhang, Yuqiang Tong. Multifeature Face Template Protection Method Based on Double Random Phase Coding[J]. Laser & Optoelectronics Progress, 2022, 59(18): 1811005
- Laser & Optoelectronics Progress
- Vol. 59, Issue 18, 1811005 (2022)
Fig. 1. Schematic of improved fourth-order magic square algorithm and scrambled images.(a) Diagram of the improved fourth-order magic square transformation rules; (b) scramble degree images at each stage of the improved fourth-order magic square transformation
Fig. 2. Scrambling restoration of ORL database. (a) Original image; (b) image scrambled by the proposed scrambling algorithm; (c) restored image
Fig. 3. Pixel point coordinate map in ORL database. (a) Distribution map of adjacent position points of the original image; (b) distribution map of adjacent position points of the scrambled image
Fig. 4. Scrambling restoration of EYaleB database. (a) Original image; (b) image scrambled by the proposed scrambling algorithm; (c) restored image
Fig. 5. Pixel point coordinate map in EYaleB database. (a) Distribution map of adjacent position points of the original image; (b) distribution map of adjacent position points of the scrambled image
Fig. 6. Scrambling stability map
Fig. 7. Relationship between number of iterations and recognition rate. (a) ORL database; (b) EYaleB database
Fig. 8. Similarity number distribution graph of two templates generated with different keys
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Table 1. Matrix adjacent position correlation at each stage of the improved fourth-order magic square transformation
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Table 2. Periodic experimental demonstration result
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Table 3. Comparison result of different algorithms
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Table 4. Comparison of recognition rate of different methods
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Table 5. EER comparison of different methods
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