DashCam Pay: A System for In-vehicle Payments Using Face and Voice
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We present an open loop system, called DashCam Pay, that enables in-vehicle payments using face and voice biometrics. The system uses a plug-and-play device (dashcam) mounted in the vehicle to capture face images and voice commands of passengers. The dashcam is connected to mobile devices of passengers sitting in the vehicle, and uses privacy-preserving biometric comparison techniques to compare the biometric data captured by the dashcam with the biometric data enrolled on the users' mobile devices to determine the payer. Once the payer is verified, payment is initiated via the mobile device of the payer. For initial feasibility analysis, we collected data from 20 different subjects at two different sites using a commercially available dashcam, and evaluated open-source biometric algorithms on the collected data. Subsequently, we built an android prototype of the proposed system using open-source software packages to demonstrate the utility of the proposed system in facilitating secure in-vehicle payments. DashCam Pay can be integrated either by dashcam or vehicle manufacturers to enable open loop in-vehicle payments. We also discuss the applicability of the system to other payments scenarios, such as in-store payments.
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