Abstract
In on-line signature verification, DP (Dynamic Programming) matching is an essential technique in making a reference signature and/or calculating the distance between two signatures. For continuous signatures such as western, it is reasonable that the matching is tried over whole signature, i.e., from the start of signature to the end of signature. However, for segmental signatures such as eastern (e.g., Japanese or Chinese), the DP matching generates unrecoverable error caused by wrong correspondences of segments, and leads to worse EER (Equal Error Rate).
In this study, we compare three kinds of DP matching scheme; (1)Based on First name part and Second name part, (2)Based on characters, and (3)Based on strokes. From experimental results, 1.8% average EER in whole DP matching decreases into 0.5% in scheme (1), 0.105% in scheme (2) and 0.00244% in scheme (3) for 14 writers’ signatures with intersession variability over one month. In this paper, problems in DP matching and results of signature verification with XY position, pressure, and inclination are given under proposed matching schemes.
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References
Cyber-Sign, http://www.cybersign.com/
SOFTPRO, http://www.signplus.com/en/
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Hangai, S., Sano, T., Yoshida, T. (2009). A Comparison of Three Kinds of DP Matching Schemes in Verifying Segmental Signatures. In: Fierrez, J., Ortega-Garcia, J., Esposito, A., Drygajlo, A., Faundez-Zanuy, M. (eds) Biometric ID Management and Multimodal Communication. BioID 2009. Lecture Notes in Computer Science, vol 5707. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04391-8_43
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DOI: https://doi.org/10.1007/978-3-642-04391-8_43
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