University of Twente Student Theses


Finishing and Improving of Finger Vein System

Trethyn, Trethyn (2021) Finishing and Improving of Finger Vein System.

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Abstract:Finger vein biometrics is a developing field, currently dominated by commercial research. Since commercial products and research are kept private, the academic community wishes to develop their own finger vein biometric systems, in order to conduct their own research. This report details a redesign of the finger vein scanner system at the University of Twente, making the system self contained and more coherent. The system consists of a strip of individually controllable Near InfraRed (NIR) LEDs, an InfraRed (IR) camera, a custom designed driver board to provide power to the LEDs and a Raspberry Pi 4 for control. The redesign is done by migrating the user interaction, signal processing, matching and enrolment systems from MatLab running on an external computer to a combination of OpenCV and C++, running directly on the finger vein scanner. The redesign also includes a new implementation of automatic LED adjustment, in order that the finger being captured is correctly exposed and can be properly processed. Furthermore touchscreen control is implemented for the system, making it completely standalone. The performance of the migrated system was evaluated with respect to the original, and vein extraction and recognition were found to be comparable.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:53 electrotechnology
Programme:Electrical Engineering BSc (56953)
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