UM
Model-based signature verification with rotation invariant features
Wen J.; Fang B.; Tang Y.Y.; Zhang T.
2009-07-01
Source PublicationPattern Recognition
ISSN00313203
Volume42Issue:7Pages:1458-1466
AbstractNon-linear rotation of signature patterns is one of the major difficulties to solve in off-line signature verification. This paper presents two models utilizing rotation invariant structure features to tackle the problem. In principle, the elaborately extracted ring-peripheral features are able to describe internal and external structure changes of signatures periodically. In order to evaluate match score quantitatively, discrete fast fourier transform is employed to eliminate phase shift and verification is conducted based on a distance model. In addition, the ring-hidden Markov model (HMM) is constructed to directly evaluate similar between test signature and training samples. With respect to the side effect of outlier training samples for stable statistical model and threshold estimation, we propose a selection strategy to improve the performance of system. Experimental results demonstrated that the proposed methods were effective to improve verification accuracy. © 2008 Elsevier Ltd. All rights reserved.
KeywordHMM Ring-peripheral feature Rotation invariant Sample set pickup Signature verification Threshold selection
DOI10.1016/j.patcog.2008.10.006
URLView the original
Language英語
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Cited Times [WOS]:33   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationChongqing University
Recommended Citation
GB/T 7714
Wen J.,Fang B.,Tang Y.Y.,et al. Model-based signature verification with rotation invariant features[J]. Pattern Recognition,2009,42(7):1458-1466.
APA Wen J.,Fang B.,Tang Y.Y.,&Zhang T..(2009).Model-based signature verification with rotation invariant features.Pattern Recognition,42(7),1458-1466.
MLA Wen J.,et al."Model-based signature verification with rotation invariant features".Pattern Recognition 42.7(2009):1458-1466.
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