Data-specific Adaptive Threshold for Face Recognition and Authentication

26 Oct 2018  ·  Hsin-Rung Chou, Jia-Hong Lee, Yi-Ming Chan, Chu-Song Chen ·

Many face recognition systems boost the performance using deep learning models, but only a few researches go into the mechanisms for dealing with online registration. Although we can obtain discriminative facial features through the state-of-the-art deep model training, how to decide the best threshold for practical use remains a challenge. We develop a technique of adaptive threshold mechanism to improve the recognition accuracy. We also design a face recognition system along with the registering procedure to handle online registration. Furthermore, we introduce a new evaluation protocol to better evaluate the performance of an algorithm for real-world scenarios. Under our proposed protocol, our method can achieve a 22\% accuracy improvement on the LFW dataset.

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Results from the Paper


 Ranked #1 on Face Recognition on LFW (Online Open Set) (using extra training data)

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Task Dataset Model Metric Name Metric Value Global Rank Uses Extra
Training Data
Result Benchmark
Face Recognition Adience (Online Open Set) FaceNet+Adaptive Threshold Average Accuracy (10 times) 84.3 # 1
Face Recognition Adience (Online Open Set) FaceNet+Fixed Threshold (0.2487) Average Accuracy (10 times) 80.6 # 2
Face Recognition Color FERET (Online Open Set) FaceNet+Adaptive Threshold Average Accuracy (10 times) 83.79 # 1
Face Recognition Color FERET (Online Open Set) FaceNet+Fixed Threshold (0.3968) Average Accuracy (10 times) 80.72 # 2
Face Recognition LFW (Online Open Set) FaceNet+Fixed Threshold (0.3779) Average Accuracy (10 times) 53.97 # 2
Face Recognition LFW (Online Open Set) FaceNet+Adaptive Threshold Average Accuracy (10 times) 76.46 # 1

Methods


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