Online Signature Verification using Deep Representation: A new Descriptor
| Autor: | Saffar, Mohammad Hajizadeh, Fayyaz, Mohsen, Sabokrou, Mohammad, Fathy, Mahmood |
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| Rok vydání: | 2018 |
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| Druh dokumentu: | Working Paper |
| Popis: | This paper presents an accurate method for verifying online signatures. The main difficulty of signature verification come from: (1) Lacking enough training samples (2) The methods must be spatial change invariant. To deal with these difficulties and modeling the signatures efficiently, we propose a method that a one-class classifier per each user is built on discriminative features. First, we pre-train a sparse auto-encoder using a large number of unlabeled signatures, then we applied the discriminative features, which are learned by auto-encoder to represent the training and testing signatures as a self-thought learning method (i.e. we have introduced a signature descriptor). Finally, user's signatures are modeled and classified using a one-class classifier. The proposed method is independent on signature datasets thanks to self-taught learning. The experimental results indicate significant error reduction and accuracy enhancement in comparison with state-of-the-art methods on SVC2004 and SUSIG datasets. Comment: arXiv admin note: substantial text overlap with arXiv:1505.08153 |
| Databáze: | arXiv |
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