NormFace: L2 Hypersphere Embedding for Face Verification

Understand

Thanks to the recent developments of Convolutional Neural Networks, the performance of face verification methods has increased rapidly.

• In a typical face verification method, feature normalization is a critical step for boosting performance.
• This motivates us to introduce and study the effect of normalization during training.
• But we find this is non-trivial, despite normalization being differentiable.