Signature Verification AlgorithmBased on HMM/DTW Two-Level Architecture
YU Hong-Bin1,WU Zhong-Cheng1,2,SHEN Fei1,2
1.Center for Biomimetic Sensing and Control Research,Institute of Intelligent Machines,Chinese Academy of Sciences,Hefei230031 2.Automation Control Group,High Magnetic Field Laboratory,Chinese Academy of Sciences,Hefei 230031
Abstract A method for online hand-writing signature verification is proposed based on hidden Markov model (HMM) combined with dynamic time wrapping (DTW). To satisfy the inter-class consistency of signature segmentation and status division, the critical points in signatures are defined and its features are calculated. The difference values measured by DTW using two-dimension signature shape are used as observations of HMM to build the two-level architecture of HMMs for handwriting signature verification. The accuracy rate reaches about 93%.
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2010, Vol. 23 
