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Signature Verification using Dynamic Time Warping

Biometrics authentication has been gaining popularity among the industries that highly incorporate securities in their daily activities. Signature verification is one of the biometrics authentication techniques which has been used for years and publicly accepted. The ease of use of signature verification coupled with lower cost and technology advances in tablet technologies, signature verification has been adapted into applications such as credit cards transactions, checks transactions and documents verification. This paper focuses on the development of an online signature verification using Dynamic Time Warping (DTW) algorithm. The developed system would be fully described in the relevant sections as well as the techniques and implementations involved. The developed system was tested on a database in the purpose to evaluate the performance of the system. The database used in the system is obtained from Signature Verification Competition 2004 (SVC2004) which consists of genuine signatures and skilled forgery signatures. The equal error rate (EER) obtained after some experiments is 0.15 using universal threshold and 0.135 using user-based threshold with the implementation of Dynamic Time Warping (DTW) algorithm.