GaitPrivacyON: Privacy-preserving mobile gait biometrics using unsupervised learning

نویسندگان

چکیده

Numerous studies in the literature have already shown potential of biometrics on mobile devices for authentication purposes. However, it has been that, learning processes associated to biometric systems might expose sensitive personal information about subjects. This study proposes GaitPrivacyON, a novel gait verification approach that provides accurate results while preserving subject. It comprises two modules: i) convolutional Autoencoders with shared weights transform attributes raw data, such as gender or activity being performed, into new privacy-preserving representation; and ii) system based combination Convolutional Neural Networks (CNNs) Recurrent (RNNs) Siamese architecture. The main advantage GaitPrivacyON is first module (convolutional Autoencoders) trained an unsupervised way, without specifying subject protect. Two experimental examinated: MotionSense MobiAct databases; OU-ISIR database. achieved suggest significantly improve privacy keeping user higher than 96.6% Area Under Curve (AUC). To best our knowledge, this considers methods way.

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ژورنال

عنوان ژورنال: Pattern Recognition Letters

سال: 2022

ISSN: ['1872-7344', '0167-8655']

DOI: https://doi.org/10.1016/j.patrec.2022.07.015