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About this paper
Lin Li, Chao Chen, Lei Pan, Leo Yu Zhang, Zhifeng Wang, Jun Zhang, Yang Xiang
The paper provides a systematic review of Photoplethysmogram (PPG)-based authentication research from 2003 to 2023, introducing a four-layered framework that organizes signal acquisition, conditioning, representation, and security application methods. The authors identify key challenges, evaluate existing solutions across critical metrics, and propose future research directions for this biometric modality.
Key insights
- PPG signals offer distinct advantages for authentication, including simple, non-invasive acquisition, inherent difficulty to steal, and intrinsic liveness detection capabilities.
- The proposed four-layered framework effectively categorizes and elucidates the technical aspects of PPG-based authentication, from raw signal capture to secure application.
- Interdisciplinary collaboration, integrating expertise from computer science/cybersecurity with medical understanding of PPG, is crucial for developing robust and physiologically sound authentication systems.
Summary by alphaXiv.
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