MiDeCon: Unsupervised and Accurate Fingerprint and Minutia Quality Assessment based on Minutia Detection Confidence

• URL: http://arxiv.org/abs/2106.05601v1
• Date: Thu, 10 Jun 2021 09:06:01 GMT
• Title: MiDeCon: Unsupervised and Accurate Fingerprint and Minutia Quality Assessment based on Minutia Detection Confidence
• Authors: Philipp Terh\"orst, Andr\'e Boller, Naser Damer, Florian Kirchbuchner, Arjan Kuijper
• Abstract summary: We propose a novel concept of assessing minutia and fingerprint quality based on minutia detection confidence (MiDeCon) MiDeCon can be applied to an arbitrary deep learning based minutia extractor and does not require quality labels for learning. Experiments are conducted on the publicly available databases of the FVC 2006 and compared against several baselines.
• Score: 6.284767263654553
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: An essential factor to achieve high accuracies in fingerprint recognition systems is the quality of its samples. Previous works mainly proposed supervised solutions based on image properties that neglects the minutiae extraction process, despite that most fingerprint recognition techniques are based on detected minutiae. Consequently, a fingerprint image might be assigned a high quality even if the utilized minutia extractor produces unreliable information. In this work, we propose a novel concept of assessing minutia and fingerprint quality based on minutia detection confidence (MiDeCon). MiDeCon can be applied to an arbitrary deep learning based minutia extractor and does not require quality labels for learning. We propose using the detection reliability of the extracted minutia as its quality indicator. By combining the highest minutia qualities, MiDeCon also accurately determines the quality of a full fingerprint. Experiments are conducted on the publicly available databases of the FVC 2006 and compared against several baselines, such as NIST's widely-used fingerprint image quality software NFIQ1 and NFIQ2. The results demonstrate a significantly stronger quality assessment performance of the proposed MiDeCon-qualities as related works on both, minutia- and fingerprint-level. The implementation is publicly available.

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