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Multi-Matcher On-Line Signature Verification System in DWT Domain

Isao NAKANISHI, Hiroyuki SAKAMOTO, Naoto NISHIGUCHI, Yoshio ITOH, Yutaka FUKUI

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Summary :

This paper presents a multi-matcher on-line signature verification system which fuses the verification scores in pen-position parameter and pen-movement angle one at total decision. Features of pen-position and pen-movement angle are extracted by the sub-band decomposition using the Discrete Wavelet Transform (DWT). In the pen-position, high frequency sub-band signals are considered as individual features to enhance the difference between a genuine signature and its forgery. On the other hand, low frequency sub-band signals are utilized as features for suppressing the intra-class variation in the pen-movement angle. Verification is achieved by the adaptive signal processing using the extracted features. Verification scores in the pen-position and the pen-movement angle are integrated by using a weighted sum rule to make total decision. Experimental results show that the fusion of pen-position and pen-movement angle can improve verification performance.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.1 pp.178-185
Publication Date
2006/01/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e89-a.1.178
Type of Manuscript
Special Section PAPER (Special Section on Cryptography and Information Security)
Category
Information Hiding

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