A Comparative Study of Fingerprint Image-Quality Estimation Methods
This work addresses the problem of fingerprint verification robustness for biometric security systems, but it is incremental as it compares existing methods without introducing new ones.
The study reviewed and compared existing fingerprint image-quality estimation methods, finding high correlation between them and demonstrating that low-quality samples degrade verification performance in a minutiae-based matching system.
One of the open issues in fingerprint verification is the lack of robustness against image-quality degradation. Poor-quality images result in spurious and missing features, thus degrading the performance of the overall system. Therefore, it is important for a fingerprint recognition system to estimate the quality and validity of the captured fingerprint images. In this work, we review existing approaches for fingerprint image-quality estimation, including the rationale behind the published measures and visual examples showing their behavior under different quality conditions. We have also tested a selection of fingerprint image-quality estimation algorithms. For the experiments, we employ the BioSec multimodal baseline corpus, which includes 19200 fingerprint images from 200 individuals acquired in two sessions with three different sensors. The behavior of the selected quality measures is compared, showing high correlation between them in most cases. The effect of low-quality samples in the verification performance is also studied for a widely available minutiae-based fingerprint matching system.