Deep Convolutional Neural Networks for Fingerprint Classification

Abstract

Fingerprint recognition has widespread security applications owing to its uniqueness, permanence, and simplicity in capture. However, conventional fingerprint authentication systems face high false acceptance and rejection rates and susceptibility to spoofing attacks. To address these issues, this study proposes a deep learning-based fingerprint authentication system using a Convolutional Neural Network (CNN) with five convolution layers to derive robust spatial features. The model was trained and cross-validated on the SOCOFing dataset with regularization and data augmentation to enhance generalization and spoof resistance. Experimental results show that the proposed CNN achieved a training accuracy of 99.10% with a loss of 0.0223 and a validation accuracy of 98.89% with a loss of 0.0114. Moreover, the model maintained a low false acceptance rate of 0.33% and false rejection rate of 0.25%, demonstrating its efficacy and credibility for secure and real-time biometric authentication. A rigorous comparison with conventional CNN models and DCCN architectures confirmed that the proposed model provides higher accuracy, lower computational cost, and stronger resistance to spoofing attacks. These findings indicate that the proposed system successfully addresses existing limitations and offers a practical, scalable, and reliable solution for fingerprint verification using deep CNN architectures.