Deep learning networks for off-line handwritten signature recognition

Authors:
Bernardete Ribeiro;Ivo Gonçalves;Sérgio Santos;Alexander Kovacec
Affiliations:
CISUC, Department of Informatics Engineering, University of Coimbra, Portugal;CISUC, Department of Informatics Engineering, University of Coimbra, Portugal;CISUC, Department of Informatics Engineering, University of Coimbra, Portugal;Department of Mathematics, University of Coimbra, Portugal
Venue:
CIARP'11 Proceedings of the 16th Iberoamerican Congress conference on Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications
Year:
2011

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Abstract

Reliable identification and verification of off-line handwritten signatures from images is a difficult problem with many practical applications. This task is a difficult vision problem within the field of biometrics because a signature may change depending on psychological factors of the individual. Motivated by advances in brain science which describe how objects are represented in the visual cortex, advanced research on deep neural networks has been shown to work reliably on large image data sets. In this paper, we present a deep learning model for off-line handwritten signature recognition which is able to extract high-level representations. We also propose a two-step hybrid model for signature identification and verification improving the misclassification rate in the well-known GPDS database.