An image processing method for a single-port banknote counter

Abstract

The invention discloses an image processing method for a single-port banknote counter, comprising the following steps: (1) opening the banknote counter, waiting for the edge of the code disc to arrive, and using FPGA to test the period of the code disc teeth; When the cycle is not equal to an even multiple of the previous code disc tooth cycle, start CIS to expose and sample the line output of banknotes; (3) Set the conditions for the arrival of banknotes and the conditions for banknotes to leave; After the line output is sampled, the image line data is stored when the banknote arrival condition is met; (5) Two conditions are set for the early end of CIS acquisition; (6) After the image line data is stored, when the image line data collected by the CIS meets the step When the two conditions in (5) are met, the image acquisition ends. Since collecting one less line of images can save a certain amount of time, setting the acquisition end conditions in advance can save image acquisition time, ensure that the image recognition process can be entered as soon as possible, and prevent inclined banknotes from being rejected as suspicious ones.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image processing method for a single-port banknote counter, and belongs to the technical field of banknote counters. Background technique [0002] Due to the low price and easy use of the single-port banknote counter, it is an indispensable product in the banknote counter market. The traditional single-port banknote counting machine uses features such as banknote length and width and security line codes to identify the denomination of banknotes. Due to the diversity of banknotes and the continuous issuance of new versions of banknotes, the traditional single-port banknote counters face the dilemma of single application and inability to upgrade. However, introducing an image recognition module into a single-mouth banknote counter, and using the image of banknotes to identify the denomination can effectively solve this problem. However, due to the narrow length of the transmission ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an image processing method for a single-mouth banknote counter, which can effectively identify inclined banknotes, so as to solve the problem of long residence time of inclined banknotes in the CIS in the prior art banknote counters, resulting in output recognition The result is not timely and causes the technical problem of refusal

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