ONLINE SIGNATURE VERIFICATION BASED ON LOGARITHMIC SPECTRUM

In this paper, an on-line signature verification scheme based on simil arity measurement of logarithmic spectrum is proposed. The principal c omponents of the logarithmic spectrum of each signature are extracted. We then compute the similarity of logarithmic spectrum between input signature and the reference template. By comparing the similarity of l ogarithmic spectrum with the verification threshold, we can determine the authenticity of the input signature. Based on the experimentation, the rates of false rejection errors and false acceptance errors are a s low as 1.4 and 2.8%, respectively. This demonstrates the effectivene ss of the proposed scheme. (C) 1998 Published by Elsevier Science Ltd on behalf of the Pattern Recognition Society. All rights reserved.