Unmasking Face Embeddings by Self-restrained Triplet Loss for Accurate Masked Face Recognition

• URL: http://arxiv.org/abs/2103.01716v1
• Date: Tue, 2 Mar 2021 13:43:11 GMT
• Title: Unmasking Face Embeddings by Self-restrained Triplet Loss for Accurate Masked Face Recognition
• Authors: Fadi Boutros, Naser Damer, Florian Kirchbuchner and Arjan Kuijper
• Abstract summary: We present a solution to improve the masked face recognition performance. Specifically, we propose the Embedding Unmasking Model (EUM) operated on top of existing face recognition models. We also propose a novel loss function, the Self-restrained Triplet (SRT), which enabled the EUM to produce embeddings similar to these of unmasked faces of the same identities.
• Score: 6.865656740940772
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Using the face as a biometric identity trait is motivated by the contactless nature of the capture process and the high accuracy of the recognition algorithms. After the current COVID-19 pandemic, wearing a face mask has been imposed in public places to keep the pandemic under control. However, face occlusion due to wearing a mask presents an emerging challenge for face recognition systems. In this paper, we presented a solution to improve the masked face recognition performance. Specifically, we propose the Embedding Unmasking Model (EUM) operated on top of existing face recognition models. We also propose a novel loss function, the Self-restrained Triplet (SRT), which enabled the EUM to produce embeddings similar to these of unmasked faces of the same identities. The achieved evaluation results on two face recognition models and two real masked datasets proved that our proposed approach significantly improves the performance in most experimental settings.

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