Yueping Kong, Xia Liu, Xinqian Xie, Fengjie Li. Face Liveness Detection Method Based on Histogram of Oriented Gradient[J]. Laser & Optoelectronics Progress, 2018, 55(3): 031009
- Laser & Optoelectronics Progress
- Vol. 55, Issue 3, 031009 (2018)
Fig. 1. Imaging process of real face and photo face
Fig. 2. Comparison of real face, photo face, and their HOG. (a) real face, (b) gradient image of (a), (c) HOG of (b), (d) photo face, (e) gradient image of (d), and (f) HOG of (e)
Fig. 3. Schematic of HOG feature extraction
Fig. 4. Block diagram of HOG feature extraction
Fig. 5. Reference feature distributions of average features of (a) real face and (b) photo face
Fig. 6. Similarity distributions between samples and reference features. Similarity distributions of 1000 samples to (a) HT-mean and (b) HF-mean
Fig. 7. Block diagram of human face liveness detection
Fig. 8. Example of error samples
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Table 1. Test results of feature selection
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Table 2. Recognition rate of different feature extraction methods
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