Paper currency authentication method based on light color light change anti-counterfeiting characteristics

Abstract

The invention discloses a banknote authenticating method based on the anti-counterfeiting feature of light change, which includes: when it is detected that the banknote enters the banknote inlet provided in the horizontal direction, the white light source arranged above the banknote passing channel is triggered to light up, and irradiates the banknote. For banknotes to be detected, the first image of the banknotes to be detected is collected by the color sensor arranged directly above the banknote passing channel; the cam mechanism arranged below the banknote passing channel is triggered to rotate until the convex part is on the upper side so that the banknotes to be detected are tilted, Using the color sensor to collect a second image of the banknote to be detected; comparing the luster and light change characteristic areas in the first image and the second image to determine whether it has the luster and light change characteristic. The method is easy to implement, low in implementation cost, fast and accurate in detection, and thus can accurately detect counterfeit currency, especially for counterfeit identification of altered currency, the effect is more obvious. For the feature of luster and optical change, the present invention can perform accurate detection.

Description

technical field [0001] The invention relates to the technical field of image processing and recognition, in particular to a paper currency detection method. Background technique [0002] Maintaining financial order and the interests of the public and preventing counterfeit money from flowing into the market are issues that financial management institutions are particularly concerned about. The core issue in the field of financial instruments is the identification of counterfeit banknotes. Reflective imaging methods based on CMOS / CIS and other image acquisition equipment are widely used in traditional currency counters, sorting machines and other banknote detection machines. As the counterfeit currency production technology is getting higher and higher, it is necessary to propose more efficient and effective means to solve various counterfeit currency and counterfeit currency identification problems encountered in reality. [0003] The existing banknote identification system...

AI Technical Summary

Problems solved by technology

Therefore, for the currencies of different countries, products must be customized according to their characteristics, resulting in many types of product lines and difficult productization.

In terms of system hardware debugging, due to the large number of hardware, the product debugging cycle is relatively long, the equipment wiring is complicated, and the product productization cycle is relatively long. The advent of such products will seriously lag behind market demand

In such equipment based on reflective imaging, these problems cannot be avoided. Under the premise that the principle of system authentication does not change, these inherent problems cannot be fundamentally solved.

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