BiometricNet: Deep Learning based Biometric Identification using Wrist-Worn PPG

Everson, Luke and Biswas, Dwaipayan and Panwar, Madhuri and Rodopoulos, Dimitrios and Acharyya, Amit and Kim, Chris H and Van Hoof, Chris and Konijnenburg, Mario and Van Helleputte, Nick (2018) BiometricNet: Deep Learning based Biometric Identification using Wrist-Worn PPG. In: IEEE International Symposium on Circuits and Systems (ISCAS), 27-30 May 2018, Italy.

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Abstract

Rapid advances in semiconductor fabrication technology have enabled the proliferation of miniaturized body-worn sensors capable of long term pervasive biomedical signal monitoring. In this paper, we present a novel deep learning-based framework (BiometricNET) on biometric identification using data collected from wrist-worn Photoplethysmography (PPG) signals in ambulatory environments. We have formulated a completely personalized data-driven approach, using a four-layer deep neural network - employing two convolution neural network (CNN) layers in conjunction with two long short-term memory (LSTM) layers, followed by a dense output layer for modelling the temporal sequence inherent within the pulsatile signal representative of cardiac activity. The proposed network configuration was evaluated on the TROIKA dataset collected from 12 subjects involved in physical activity, achieved an average five-fold cross-validation accuracy of 96%.

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