Threshold Equalization Methods for On-Line Signature Verification
نویسندگان
چکیده
In on-line signature verification, complexity of signature shape can influence the value of the optimal threshold for individual signatures. If writer-dependent threshold selection is not possible, some threshold equalization method based on the complexity of signatures is needed. In this paper, we propose three different threshold equalization methods based on (i) average number of samples, (ii) number of negative samples, and (iii) number of signinversions. Their effectiveness is confirmed in experiments using a multi-matcher DWT on-line signature verification system.
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