Method and system for detecting dust accumulation in a financial bill recognition module

Abstract

The present invention relates to a method and system for detecting dust accumulation in a financial bill recognition module, the method comprising: step 1, collecting spectral image information; step 2, searching the effective area of ​​the spectral image; step 3, extracting dust accumulation features; step 4 , Image dust accumulation discrimination, according to the judgment result of whether there is dust accumulation, a reminder is given to clean up the dust accumulation and end or enter the process of bill identification. This detection method does not need to add additional devices, and only needs to conduct a dust accumulation detection on the collected spectral image information during the self-inspection process of the equipment or before the financial bill identification, and then a conclusion can be drawn whether there is dust accumulation. Therefore, the cost is low and the recognition reliability is high, which ensures the stability and reliability of the sensor image signal of the recognition module and the accuracy of the financial bill recognition result.

Description

technical field [0001] The invention relates to an image analysis technology, in particular to a detection method and a detection system applicable to financial self-service equipment for judging whether there is dust accumulation in an identification module. Background technique [0002] In the financial self-service equipment, in order to inspect each incoming bill (such as banknotes) processed in batches one by one, it is necessary to separate the stacked financial bills one by one, and then perform image recognition and thickness detection on the separated single financial bills , magnetic information detection and other identification methods to ensure the authenticity of the processed financial bills, among which, the image recognition of financial bills is the most effective detection method for the validity of bills. [0003] However, when the financial bill passes through the transmission device of the financial equipment, the paper scraps and printing ink on the su...

AI Technical Summary

Problems solved by technology

[0003] However, when the financial bill passes through the transmission device of the financial equipment, the paper scraps and printing ink on the surface will fall off and accumulate, and when it passes through the identification module, it will naturally accumulate on the sensor, resulting in the spectral image collected by the sensor It cannot truly reflect the true characteristics of financial bills, thus affecting the accuracy of financial equipment for bill recognition results

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