Learning Meta Face Recognition in Unseen Domains

• URL: http://arxiv.org/abs/2003.07733v2
• Date: Wed, 25 Mar 2020 04:50:08 GMT
• Title: Learning Meta Face Recognition in Unseen Domains
• Authors: Jianzhu Guo, Xiangyu Zhu, Chenxu Zhao, Dong Cao, Zhen Lei and Stan Z. Li
• Abstract summary: We propose a novel face recognition method via meta-learning named Meta Face Recognition (MFR) MFR synthesizes the source/target domain shift with a meta-optimization objective. We propose two benchmarks for generalized face recognition evaluation.
• Score: 74.69681594452125
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Face recognition systems are usually faced with unseen domains in real-world applications and show unsatisfactory performance due to their poor generalization. For example, a well-trained model on webface data cannot deal with the ID vs. Spot task in surveillance scenario. In this paper, we aim to learn a generalized model that can directly handle new unseen domains without any model updating. To this end, we propose a novel face recognition method via meta-learning named Meta Face Recognition (MFR). MFR synthesizes the source/target domain shift with a meta-optimization objective, which requires the model to learn effective representations not only on synthesized source domains but also on synthesized target domains. Specifically, we build domain-shift batches through a domain-level sampling strategy and get back-propagated gradients/meta-gradients on synthesized source/target domains by optimizing multi-domain distributions. The gradients and meta-gradients are further combined to update the model to improve generalization. Besides, we propose two benchmarks for generalized face recognition evaluation. Experiments on our benchmarks validate the generalization of our method compared to several baselines and other state-of-the-arts. The proposed benchmarks will be available at https://github.com/cleardusk/MFR.

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