Paper currency detecting method and device

Abstract

The invention discloses a paper currency detecting method. A paper currency recognition device is internally provided with an image acquisition unit, a light source and a currency delivering channel, wherein the image acquisition unit and the light source are respectively located on two sides of the currency delivering channel of the paper currency recognition device. The paper currency detecting method comprises the following steps: in a process for delivering a paper currency to be detected through the currency delivering channel, acquiring and processing the full-breadth image of the paper currency by the image acquisition unit through transmission light of the light source, transmitting through the paper currency; extracting anti-counterfeiting feature information from the processed full-breadth image; and judging the authenticity of the paper currency according to the processed image and/or the anti-counterfeiting feature information. The invention further provides a corresponding device. A paper currency detection scheme provided by the invention is beneficial to overcoming of the limitedness of processing with a reflection-type imaging algorithm, and is easy to realize with lower cost and fast and accurate detection, thus, false money can be accurately detected, and particularly, a more obvious effect on the false authentication can be achieved on a changed paper currency; and the paper currency detecting method and device can be used for accurately detecting complementary opposite printing type features of offset printing.

Description

technical field [0001] The invention relates to the technical field of image processing and recognition, in particular to a paper currency detection method and device. 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 identifica...

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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