A cost-effective minutiae disk code for fingerprint recognition and its implementation

Abstract

Fingerprint is one of the unique biometric features for the application of identity security. Minutiae cylinder code (MCC) constructs a cylinder for each minutia to record the contribution of the neighbor minutiae, which has great performance on fingerprint recognition. However, the computation time of the MCC is high. Therefore, we proposed a new disk structure to encode the local structure for each minutia. The proposed minutiae disk code (MDC) clearly illustrates the distribution of the neighbor minutiae and encodes the neighbor minutiae more efficiently by having 280.08× speed faster than the MCC encoding part on Matlab platform. The proposed MDC approach has 96.81% recognition rate on FVC2000 and FVC2002 datasets. The hardware implementation can achieve the operating frequency at 111MHz, which can process 1234 fingerprint images per second with the image size of 255 χ 255 and the maximum of 64 minutiae, under TSMC 90nm CMOS technology. The hardware implementation has 141.27× speed faster than the MCC method.