Mohammad Rezaei - Department of computer engineering, K.N.Toosi University of Technology, Tehran, Iran
Nader Naderi - Department of engineering, Islamic Azad University Arak Branch, Iran

Fully convolutional networks (FCNs) have been recently used for feature extraction and classification in image and speech recognition, where their inputs have been raw signal or other complicated features. Persian signature verification is done using conventional convolutional neural networks (CNNs). In this paper, we propose to use FCN for learning a robust feature extraction from the raw signature images. FCN can be considered as a variant of CNN where its fully connected layers are replaced with a global pooling layer. In the proposed manner, FCN inputs are raw signature images and convolution filter size is fixed. Recognition accuracy on UTSig database, shows that FCN with a global average pooling outperforms CNN.

fully convolutional network, Persian signature verification, offline signature verification