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Banknote recognition method and device

A banknote identification and banknote technology, applied in the field of banknote identification method and device, can solve the problem of inaccurate identification of small denomination Iranian currency

Inactive Publication Date: 2019-08-27
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned three small-denomination Iranian coins are damaged in small and medium areas, there will be a problem of inaccurate currency identification of the small-denomination Iranian coins using the existing banknote identification method.

Method used

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  • Banknote recognition method and device

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Experimental program
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Embodiment 1

[0066] figure 1 It is a flow chart of a banknote identification method provided by Embodiment 1 of the present invention. This embodiment is applicable to three types of Iranian currency with small denominations: 20,000 rials, 50,000 rials, and 100,000 rials. In the case of identification, the method can be executed by a banknote identification device, wherein the device can be implemented by software and / or hardware, and the device can be integrated into a banknote validator. refer to figure 1 The banknote identification method provided in this embodiment may specifically include the following steps:

[0067] S110. Select the upper and lower two groups of characteristic regions in the front gray image of the banknote, and each group of characteristic regions consists of a left characteristic region and a right characteristic region.

[0068] Specifically, the sensor can be used to acquire the front grayscale image of the banknote, and then the upper group of characteristic ...

Embodiment 2

[0106] figure 2 It is a structural diagram of a banknote identification device in Embodiment 2 of the present invention. This embodiment is applicable to three types of small denomination Iranian currency: 20,000 rials, 50,000 rials and 100,000 rials. identified situation. refer to figure 2 , the specific structure of the banknote identification device provided in this embodiment can be as follows:

[0107] The selection module 210 is used to select the upper and lower two groups of characteristic regions in the front gray image of the banknote, and each group of characteristic regions is composed of a left characteristic region and a right characteristic region;

[0108] A search module 220, configured to search for feature pixels in the left feature area and the right feature area;

[0109] The first determining module 230 is configured to respectively determine the region representative row coordinates of the left characteristic region and the right characteristic regi...

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Abstract

The embodiment of the invention discloses a banknote identification method and device. The method comprises a step of selecting upper and lower group characteristic areas in the front grayscale image of a banknote, wherein each group of the characteristic areas is formed by a left characteristic area and a right characteristic area, a step of searching a characteristic pixel in the left characteristic area and the right characteristic area respectively, a step of determining the regional representative row coordinates of the left characteristic area and the right characteristic area according to a searching result, a step of determining the characteristic identifications of the upper group characteristic area and the lower group characteristic area according to the regional representative row coordinates, and a step of identifying the type of the banknote according to the characteristic identifications. According to the banknote identification method and device, a problem that a banknote type can not be accurately identified by an existing banknote identification method when three types of small denomination Iran banknotes with similar sizes has small area fouling is solved, and the banknote type identification accuracy of the small denomination Iran banknotes is improved.

Description

technical field [0001] Embodiments of the present invention relate to image processing technology, and in particular to a banknote identification method and device. Background technique [0002] In daily life in Iran, Iranian coins with smaller denominations circulate the most. Currently, the smaller denominations of Iranian currency include 20,000 rials, 50,000 rials and 100,000 rials. The above-mentioned three small-denomination Iranian coins are almost the same in size, so how to accurately identify small-denomination Iranian coins of similar size is particularly important. [0003] In the prior art, the grayscale image of the banknote is usually firstly intercepted, and then the image of the intercepted area is binarized to identify the currency type of the banknote. However, when the three small-denomination Iranian coins are defaced in small and medium areas, there will be a problem of inaccurate currency identification of the small-denomination Iranian coins using t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/20
Inventor 傅博扬
Owner SHENZHEN YIHUA COMP