Biometric Touch Sensing: Seamlessly Augmenting Each Touch with Continuous Authentication
summary
Continuous authentication embeds a biometric ID into every touch by modulating wrist bioimpedance onto the body and letting commodity touchscreens read it. A wearable converter called Bioamp watch prototype measures impedance across eight electrodes, transmits an ID via the finger, and the Surface Pro classifies users with an SVM and 95% confidence threshold. Throughput on real touch hardware is limited to about 12 bits per second but a simulated path achieved 96 KB/s with 18% bit‑error rate. The system works for single- and limited multi‑user scenarios.
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chapters (13)
- 0:00Introduction to biometric touch sensing
- 1:26Current authentication limitations
- 3:12Biometric touch sensing concept
- 5:22Related work comparison
- 6:03Bioamp device design
- 7:27Data transfer to touchscreen
- 8:51Signal modulation demonstration
- 10:38System integration challenges
- 11:45Application integration examples
- 13:52Output and sharing scenarios
- 15:16System evaluation results
- 17:02Conclusion and future work
- 18:06Q&A session
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