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Score Level Fusion in DWT Domain On-Line Signature Verification
Shouta Koike,Isao Nakanishi,Yoshio Itoh 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In multi-matcher verification system, scores from matchers are fused at a decision level. However, each matcher has generally a different optimum threshold from other ones and then it causes deterioration of total verification rate. In this paper, we take the multi-matcher DWT on-line signature verification system for example and introduce threshold equalization methods based on the complexity of a signature. Their effectiveness is confirmed in computer simulations.