Fingerprint recognition under the influence of image sensor ageing

Fingerprint recognition performance is affected by many factors. One of these are defective pixels caused by ageing effects of the image sensor. We investigate the impact of these image sensor ageing related pixel defects on the performance of different fingerprint matchers (NBIS, VeriFinger, FingerCode and Phase Only Correlation). The matchers are compared against each other to quantify the differences in the impact. In practice also other influences besides image sensor ageing related effects are present. As we aim to evaluate the impact of the defective pixels only, disregarding template ageing and other external influences, it is not possible to use real image data. Instead an experimental study using an ageing simulation algorithm including hot and stuck pixels is conducted on the FVC2002 and FVC2004 data sets.