Banknote serial number identification and authentication method

Abstract

The invention discloses a banknote serial number identification and authentication method, which comprises the following steps: collecting a magnetic image and a green light image of a banknote to be output through a magnetic image sensor and a CIS sensor; carrying out identification on the magnetic image and the green light image through a support vector machine algorithm to locate serial number image positions and intercept serial number areas of the green light image and the magnetic image respectively; carrying out identification on the intercepted serial number areas through a serial number identification algorithm to obtain serial number identification results of the green light image and the magnetic image respectively; and with the serial number identification results of the magnetic image being as reference, comparing the serial number identification results of the green light image one by one, and controlling whether to output the banknote or not according to the comparison results. Through one-by-one comparison between the serial numbers of the green light image and the serial numbers of the magnetic image, the method can still identify the serial numbers when the serial numbers are smeared and stained, thereby improving identification accuracy.

Description

technical field [0001] The invention relates to the technical field of banknote identification, in particular to a banknote serial number identification and counterfeit identification method. Background technique [0002] With the rapid development of global high-tech today, financial security is becoming more and more important. How to better protect national financial security and better combat financial crimes has become an important research topic at present. [0003] Among them, banknotes play an important role in the financial field. In today's high-speed currency circulation, how to quickly track and locate the use of currency is a particularly important research content. The generation of the serial number has greatly improved the supervision ability of the financial supervision department, and is conducive to tracking and locating the use of currency. The correct identification and storage of the serial number can escort the safe circulation of currency. [0004] ...

AI Technical Summary

Problems solved by technology

[0004] However, with the increase in the circulation of currency, the defacement of currency is becoming more and more serious, especially the defacement of the key position of banknotes (such as the defacement or artificial modification of the serial number area) seriously affects the accurate identification of the serial number, which seriously restricts currency regulation

[0005] The traditional serial number recognition and classification uses the green light image collected by CIS (Contact Image Sensor) for processing and recognition. When the serial number is seriously defaced, this detection method can effectively sort out the defaced banknotes , but it is difficult to accurately identify the serial number of the current defaced banknotes

For example, when the serial number is slightly scribbled and the letters and numbers of the serial number are artificially changed (such as changing 6 to 8, changing 5 to 6), traditional detection methods will be difficult to deal with and wrongly identify the serial number

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