Using Hidden Markov Models for paper currency recognition

Authors:
Hamid Hassanpour;Payam M. Farahabadi
Affiliations:
School of Information Technology and Computer Engineering, Shahrood University of Technology, P.O. Box 316, Shahrood, Iran;Babol University of Technology, P.O. Box 484, Babol, Iran
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

Citing 2
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Abstract

Accurate characterization is an important issue in paper currency recognition system. This paper proposes a robust paper currency recognition method based on Hidden Markov Model (HMM). By employing HMM, the texture characteristics of paper currencies are modeled as a random process. The proposed algorithm can be used for distinguishing paper currency from different countries. A similarity measure has been used for the classification in the proposed algorithm. To evaluate the performance of the proposed algorithm, experiments have been conducted on more than 100 denominations from different countries. The results indicate 98% accuracy for recognition of paper currency.