Abstract
This paper describes both hardware and software components to detect counterfeits of Euro banknotes. The proposed system is also able to recognize the banknote values. Differently than other state-of-the-art methods, the proposed approach makes use of banknote images acquired with a near infrared camera to perform recognition and authentication. This allows one to build a system that can effectively deal with real forgeries, which are usually not detectable with visible light. The hardware does not use any mechanical parts, so the overall system is low-cost. The proposed solution is reliable for ambient light and banknote positioning. Users should simply lean the banknote to be analyzed on a flat glass, and the system detects forgery, as well as recognizes the banknote value. The effectiveness of the proposed solution has been properly tested on a dataset composed by genuine and fake Euro banknotes provided by Italy's central bank.
Highlights
Introduction and MotivationsThe detection of counterfeit banknotes is one of the most important tasks in billing machines
The banknote values recognition task has been experimentally demonstrated on different world-wide currencies that were present at that time
Despite the results on simulated counterfeit banknotes showing good performances, in the case of Euro banknotes, the real forgeries cannot be distinguished just by using features based on color
Summary
The detection of counterfeit banknotes is one of the most important tasks in billing machines It is performed by employing several image analysis techniques (transmittance analysis, reflectance analysis, etc.) with different light spectra (visible, infrared and ultraviolet). Cheaper consumer systems for validation and classification of banknotes have been commercialized They are usually based on motor actuators aimed at letting the banknote pass through light emitters and sensors in a dark area. There is the difficulty for blind and visually impaired people to recognize both the value and validity of banknotes. Euro banknotes and in recognizing their currency value This is obtained by exploiting a low-cost system without motor actuators or other mechanical parts.
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