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Paper note recognition method and device and equipment

A banknote identification and banknote technology are applied in the field of banknote identification methods and devices and equipment, and can solve problems such as banknote identification that cannot meet the requirements of high efficiency.

Active Publication Date: 2018-04-24
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous advancement of technology, people's requirements for the speed of banknote identification are getting higher and higher. The existing banknote identification methods can no longer meet people's growing needs for efficient banknote identification.

Method used

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  • Paper note recognition method and device and equipment
  • Paper note recognition method and device and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Figure 1a It is a flow chart of a banknote identification method provided by Embodiment 1 of the present invention. The method of this embodiment can be executed by a banknote identification device, which can be implemented by means of hardware and / or software, and can generally be integrated into banknote verification machine, ATM machine. The method of this embodiment specifically includes:

[0056] S101. From the grayscale image of the standard size of the banknote to be recognized, acquire a pair of local patterns matching at least one pair of feature positions.

[0057] In this embodiment, the standard size grayscale image specifically refers to scaling the forward grayscale image of the banknote to be recognized according to the standard size to obtain the forward grayscale image of the banknote to be recognized with the same size as the standard size. Wherein, the positive grayscale image of the banknote to be recognized specifically refers to the positive gray...

Embodiment 2

[0081] figure 2 It is a flow chart of a banknote identification method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, in the standard-sized grayscale image of the banknote to be identified, a local pattern pair matching at least one characteristic position pair is obtained, and the optimization is: to obtain the to-be-identified banknote A grayscale image of banknotes; adjusting the grayscale image to a standard size grayscale image according to a set standard size; in the standard size grayscale image, obtaining a pair of partial patterns matching at least one pair of feature positions.

[0082] The gray level comparison rule is optimized as: gray level mean value comparison, gray level mean square deviation comparison or gray level difference maximum value comparison.

[0083] Optimize the grayscale comparison rule to grayscale mean comparison;

[0084] Correspondingly, a...

Embodiment 3

[0115] image 3 It is a flow chart of a banknote identification method provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, before obtaining a local pattern pair matching at least one characteristic position pair in the standard-sized grayscale image of the banknote to be recognized, the optimization includes: obtaining The standard banknote set corresponding to the target currency, and obtain the standard size grayscale image sets of the target currency in different orientations and different currency values; in the target standard size grayscale image set corresponding to the target orientation and target currency value, respectively in In each target standard size grayscale image, obtain a partial pattern pair matching at least one feature position pair; according to the grayscale comparison rule, compare the first pattern and the second pattern included in the local pattern pair...

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Abstract

An embodiment of the invention discloses a paper note recognition method and device and equipment. The paper note recognition method includes acquiring a local pattern pair matched with at least one characteristic position in a standard size gray level image of a to-be-recognized paper note; comparing the gray level difference between a first pattern and a second pattern included by the local pattern pair matched with the characteristic position according to a gray level comparison rule and determining a comparison verification result corresponding to the characteristic position; determining ato-be-recognized descriptor corresponding to the to-be-recognized paper note according to the comparison verification result corresponding to the at least one characteristic position; matching the to-be-recognized descriptor with at least one standard descriptor and determining the paper note type of the to-be-recognized paper note according to the matching result. By adopting the technical scheme provided by the invention, the integral calculation amount is small, the calculation speed is high and the universality is high, and can be suitable for paper notes of different types.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of banknote identification, and in particular to a banknote identification method, device and equipment. Background technique [0002] With the development of the economy, the circulation of banknotes is increasing, and intelligent unmanned toll collection systems based on banknote recognition technology have appeared in many industries. For example, banknote recognition technology can be applied not only to automatic vending and ticket sales, but also to systems such as bank ATMs or automatic payment machines in business halls. The application of the banknote identification device saves a lot of human resources and greatly improves the work efficiency. [0003] Generally speaking, before identifying the authenticity of banknotes, it is first necessary to identify the currency type, face value, and orientation of the banknotes. With the continuous advancement of technology, people...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/206
Inventor 黄培海
Owner SHENZHEN YIHUA COMP