摘要(英) |
Signature verification is kind of biometrics verification which can verify the identity of the signer using signature the feature as the biometrics feature. Currently, it has already been applied to many occasions. Because of security, the traditional signature verification system is not used. Besides, the current Signature verification almost is the contact type, it must be with the aid of the object or touch sensor to get information. It is not convenient. In the paper, we implement a 3D Signature verification system that has safety and convenience with Leap Motion, the signer can complete signature verification without touching any sensors or items.
In this paper, we get the hand information of signer’s signature by Leap Motion, such as fingers, and hands. The user’s signature tracks are divided into some strokes decided real strokes or virtual strokes. In the extraction phase, the features are extracted from the dynamic information, real strokes and virtual strokes, and the features are divided into three categories: speed, biology and appearance. By SVM, we train reference sample with true signature samples and counterfeit signature to improve the reliability of the system. Finally, the test samples and the reference samples are compared with the SVM. In the experiment, we choose better performance of SVM classifier and kernel function; decide to join how many fake signatures as negative samples to reference sample to improve system performance; and depend on the feature combination different judge which features have better ability to distinguish. Experimental results show that the various feature combinations toward genuine signatures and fake signature have different ability, and this system has good performance, also shows that the capacity to use Leap Motion as a 3D signature verification system sensor.
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