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Banknote denomination identification method and device

An identification method and identification device technology, applied in the field of image identification, can solve problems such as heavy workload, inability to accurately identify denominations, and unsatisfactory identification effect, and achieve the effects of improving speed, ensuring identification rate, and strong adaptability

Pending Publication Date: 2020-10-02
武汉卓目科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common recognition method is to distinguish the denomination one by one according to the various characteristics of each banknote. In the environment of many countries and various types, the workload is heavy and the recognition effect is not ideal. There are many restrictions under the system, which will lead to the inability to accurately identify the denomination

Method used

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  • Banknote denomination identification method and device
  • Banknote denomination identification method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0040] see figure 1 , the invention discloses a multi-national currency denomination identification method, comprising the following steps:

[0041]Currency setting, load the preset sample data correspondingly according to the set currency;

[0042] Obtain the image of the banknote to be recognized;

[0043] Extract the full-frame feature data of the banknote image;

[0044] The first matching: the similarity calculation is performed between the full-frame feature data of the extracted banknote image and the preset sample data of partial denomination versions extracted from each currency, and the currency of the banknote to be identified is initially screened;

[0045] The second match: Calculate the similarity between the extracted full-frame feature data of the banknote image and the pre-screened preset sample data corresponding to each denomination version of the currency, and select the one with the highest comprehensive similarity as the final banknote information resul...

Embodiment 2

[0091] The invention discloses a banknote denomination identification method, comprising the following steps:

[0092] Currency setting, load the preset sample data correspondingly according to the set currency;

[0093] Obtain the image of the banknote to be recognized;

[0094] Extract the full-frame feature data of the banknote image;

[0095] The similarity calculation is performed between the extracted full-frame feature data of the banknote image and the preset sample data, and the one with the highest comprehensive similarity is selected as the final banknote information result.

[0096] Further, after obtaining the final banknote information result, it is judged whether the similarity score and the difference score meet the requirements. If the similarity score and the difference score meet the requirements, it is considered that the recognition is normal. If the similarity score and the difference score are at least If one fails to meet the requirements, it is consi...

Embodiment 3

[0100] The invention discloses a banknote denomination recognition device, which includes a banknote image acquisition module, and the banknote image acquisition module is used to acquire an image of the banknote to be identified;

[0101] And a feature extraction module, the feature extraction module is used to extract the full-frame feature data of the banknote image;

[0102] And a similarity calculation module, the similarity calculation module is used to calculate the similarity between the extracted full-frame feature data of the banknote image and each preset sample data, and select the one with the highest comprehensive similarity as the final banknote information result.

[0103] The banknote denomination recognition device of the present invention also includes a confirmation module, and the confirmation module is used to judge whether the similarity score and the difference score meet the requirements. If the similarity score and the difference score meet the require...

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Abstract

The invention discloses a banknote denomination identification method and device. The banknote denomination identification method mainly comprises a training part and an identification part. The training part is characterized in that feature extraction can be carried out automatically after enough samples are collected, human intervention is not needed, and the recognition efficiency is greatly improved. The identification part is characterized by comprising the following steps: acquiring graph edge information; finding graph coordinates through edge information fitting, and performing plane transformation according to the coordinate information to obtain transformed graph coordinates; obtaining and calculating one-dimensional feature information of the image according to a preset method;and matching with one-dimensional feature information of a standard image, and judging whether the matching feature is abnormal or not. According to the invention, the feature two-dimensional featuresare converted into a plurality of one-dimensional features, the denomination one-dimensional features are calculated, and the calculated one-dimensional features are matched with the standard denomination one-dimensional features. The invention does not depend on the image type, is not affected by the CIS type and the difference between the new bank note and the old bank note, and has high adaptability to old bank notes, residual bank notes and stained bank notes.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a banknote denomination recognition method and device. Background technique [0002] Now there are more than 170 kinds of banknotes in the world, plus various vouchers, the types of identification are extremely large, and each banknote has a life cycle of only 3-10 years, and the banknotes will be updated regularly, and there will be a large number of banknotes every year. Banknotes need to be identified. At the same time, denomination recognition is the basic function of the banknote counting machine. In the process of counting banknotes, it is necessary to quickly and accurately identify the denomination of banknotes. The recognition rate is extremely high, and the denomination problem is basically not allowed. [0003] At present, the common recognition method is to distinguish the denomination one by one according to the various characteristics of each banknote. In the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/62
CPCG06V30/40G06V10/44G06V30/10G06F18/22G06F18/214
Inventor 李果康松黄炎鹿璇周严
Owner 武汉卓目科技有限公司
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