Bank note one-dimensional signal detection method and device

Abstract

The invention discloses a bank note one-dimensional signal detection method and device. According to the bank note one-dimensional signal detection method and device, bank note one-dimensional signal data are converted into a two-dimensional gray value; the two-dimensional gray value is preprocessed; and the two-dimensional gray value is detected through using a two-dimensional data processing method, so that whether an adhesive tape is bonded on a bank note can be detected, the authenticity and face value of the bank note can be detected. According to an existing one-dimensional signal detection, abnormal samples are difficult to be distinguished, and normal samples are falsely denied, and bank notes bonded with adhesive taps are difficult to be identified accurately, while with the bank note one-dimensional signal detection method and device of the invention adopted, the problems in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of banknote identification, in particular to a method and device for detecting a one-dimensional signal of a bill. Background technique [0002] With the rapid development of the economy, the circulation of banknotes is increasing day by day. The emergence of counterfeit banknotes will affect people's normal life at least, and at worst will cause the country's economic instability, interfere with the normal order of currency circulation, and destroy the principle of social credit. [0003] Bill recognition technology is changing with each passing day. The existing mainstream bill identification technology is one-dimensional signal detection, which includes magnetic signal recognition and thickness signal recognition. [0004] However, the traditional bill one-dimensional signal detection method has certain limitations, for example: 1 is not sensitive to the judgment of the position information of bill feature points, ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for detecting a one-dimensional signal of a bill, by converting the one-dimensional signal data of a bill into a two-dimensional gray value, then preprocessing the two-dimensional gray value, and finally processing the two-dimensional data The method detects the two-dimensional gray value to detect whether the bill is stuck with tape, authenticity and face value, and solves the problem that the existing one-dimensional signal detection method is difficult to distinguish the abnormal samples and the normal samples are mistakenly rejected, especially for the transparent ones pasted. Banknotes with adhesive tape are difficult to accurately identify and other technical problems

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