Gesture-Based Security Token with Fiducial Marker Tracking
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Solution Overview
Problem
Current gesture-based security systems for contactless payment and other applications are either complex and expensive or lack sufficient authentication, posing security risks, especially when used for transactions above a certain limit without PIN entry.
Innovation Solution
A system utilizing a token with an information storage module and a fiducial marker, scanned by a device with detection, motion tracking, and authentication modules, which authenticates the token by matching the tracked trajectory to a reference trajectory, providing a secure and cost-effective gesture-based authentication mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion sensing mechanism is incorporated into RFID device for gesture-based security, then authentication capability is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent introduces an external motion tracking module as an intermediary device that performs gesture recognition. Instead of embedding complex motion sensors in the token, the system uses a separate tracking module (external mediator) to capture fiducial marker movements and authenticate gestures, thereby maintaining token simplicity while achieving secure authentication
Solution Approach 2:
The patent uses a fiducial marker (visual copy/representation) on the token that can be tracked optically, replacing the need for embedded motion sensors. The marker serves as a visual proxy that enables gesture recognition through external optical tracking, simplifying the token design while maintaining authentication capability
2Ease of operation
If contactless payment mode without PIN entry is used, then user convenience is improved, but security risk increases
Solution Approach 1:
The system performs preliminary authentication by tracking the fiducial marker's motion trajectory before authorizing the contactless transaction. The gesture recognition happens in advance of the payment approval, ensuring security verification is completed prior to transaction execution, thus maintaining both convenience and security
Data Source
AI summary
A method, system, token and scanning device for gesture-based security are provided. The token includes an information storage module such as an RFID system or a microchip system of a contactless smart card, and a fiducial marker of the token, such as a unique optically recognizable pattern. The token scanning device includes a detection module configured for retrieving details from the information storage module, a motion tracking module for tracking a trajectory of the fiducial marker relative to the scanning device, and an authentication module for authenticating the token if the tracked trajectory matches sufficiently to a reference trajectory associated with the token. A user can authenticate a usage of the token such as a financial transaction by gesture-based motion of the token to match the reference trajectory.