ATM platform-based method of detecting new bank note and old bank note

Abstract

The invention brings forward an ATM platform-based method of detecting new bank notes and old bank notes. The method is designed, based on the performance of a machine, through discrimination of new bank notes and old bank notes. The invention mainly provides the method that combines a new and old discrimination method based on blank areas of bank notes with a new and old discrimination method based on the average grey degree of histograms. Moreover, a brightness standard comparison block is adopted, and a method of calculating a relative brightness comparison value is employed, so the stability of discriminating new bank notes and old bank notes by an ATM is improved, and errors of discriminating new bank notes and old bank notes are minimized. The method includes the steps: selecting a standard comparison zone; selecting a blank zone on a bank note and making the blank zone serve as a new and old feature zone; calculating the value of comparison between the new and old feature zone and the standard comparison zone, and making the value of comparison serve as a first measurement value; counting a histogram of the whole bank note; calculating the value of comparison between the average grey degree of the previous 30% points counted by the histogram and the comparison value of the standard comparison zone, and making the value of comparison serve as a second measurement value; and determining whether the bank note is old or new according to the two measurement values.

Description

technical field [0001] The invention relates to the field of banknote image information processing, in particular to a new and old banknote detection method based on an ATM platform. Background technique [0002] The circulation speed of modern banknotes is getting faster and faster, and the quality requirements of banknotes circulating in different fields are also different. For example, the quality requirements of banknotes used by ordinary people to buy things may be very low, while the quality requirements of banknotes used in ATM machines are high. , that is to say, they are different in degree of newness and oldness. Moreover, with the rapid popularization of ATMs, the banking industry has an increasingly urgent need for banknote sorting automation. At present, many financial institutions still rely on heavy manual operations for banknote sorting, which is not only labor-intensive and takes a long time, but also has the problem of unsatisfactory quality. Banks and ot...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the stability of the system is still poor when judging the newness and oldness of banknotes by using the different sounds made by the banknotes when they move inside the machine in the process of checking whether the banknotes are new or old, the present invention provides a method to realize the old and new banknotes by extracting the features of the image. The detection of new and old banknotes is transformed into a pattern recognition problem. It is a new and old detection method of banknotes based on the ATM platform.

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