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Proceedings Paper

Signature verification based on distortion measure and spectral correlation
Author(s): Chi-Jain Wen; Ming-Wen Chang; Bor-Shenn Jeng; Hon-Fai Yau
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Paper Abstract

In the development of an automatic signature verification system, the primary problem that must be resolved first is to find out a stable signature feature. In this paper, a simple and flexible distortion measurement approach is proposed to resolve the instability problem of signatures. The total distortion between an input signature and a template signature is a combination of both static and dynamic distortions. We also select some features from the fast Fourier transform (FFT) spectrum by a window function and a special weighting function. The linear correlation is used to find out the similarity between the spectrum of an imput signature and the spectrum of the template signature. Experimental results have shown that the two- layers' decision process has a high verification rate.

Paper Details

Date Published: 22 August 1995
PDF: 9 pages
Proc. SPIE 2564, Applications of Digital Image Processing XVIII, (22 August 1995);
Show Author Affiliations
Chi-Jain Wen, National Central Univ. (Taiwan)
Ming-Wen Chang, National Central Univ. (Taiwan)
Bor-Shenn Jeng, National Central Univ. and Ministry of Transportation and Communications (Taiwan)
Hon-Fai Yau, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 2564:
Applications of Digital Image Processing XVIII
Andrew G. Tescher, Editor(s)

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