Palmprint gender classification by convolutional neural network

Abstract

Palmprint gender classification can revolutionise the performance of authentication systems, reduce searching space and speed up matching rate. However, to the best of their knowledge, there is no literature addressing this issue. The authors design a new convolutional neural network (CNN) structure, fine‐tuning Visual Geometry Group Network, up to 19 layers to achieve a 20‐layer network, for palmprint gender classification. Experimental results show that the proposed structure could achieve good performance for gender classification. They also investigate palmprint images with 15 different kinds of spectra. They empirically find that a palmprint image acquired by the Blue spectrum could achieve 89.2% correct classification and could be considered as a suitable spectrum for gender classification. The neural network is able to classify a 224 × 224 × 3‐pixel palmprint image in <23 ms, verifying that the proposed CNN is an effective real‐time solution.

Keywords

• palmprint gender classification
• convolutional neural network
• CNN
• fine-tuning visual geometry group network
• Blue spectrum