Currency identification method and currency identification device

A recognition method and technology for banknotes, applied in the field of image recognition, can solve the problems of long time-consuming recognition, low efficiency of banknote recognition, and inability to meet the needs of banknote recognition, and achieve the effect of optimizing the recognition method and improving the accuracy and efficiency.

Active Publication Date: 2017-04-26
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The recognition method for banknotes in the prior art usually needs to generate two images of green light, red light and ultraviolet light for recognition. The difference is small. Most of the optical variable ink marks are denominations, such as the optical variable ink mark of 100, which makes the recognition efficiency of banknotes low and can no longer meet people's needs for fast and efficient banknote recognition.

Method used

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  • Currency identification method and currency identification device
  • Currency identification method and currency identification device
  • Currency identification method and currency identification device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] figure 1 It is a flow chart of the banknote identification method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of identifying banknotes, and the method can be executed by the banknote identification device provided by the embodiment of the present invention. The device can be implemented by software and / or hardware, and can be integrated into banknote identification devices such as automatic deposit and teller machines, automatic vending machines, or currency detectors.

[0066] like figure 1 As shown, the identification method of the banknote includes:

[0067] S101. Acquire an infrared transmission image of the banknote to be identified.

[0068] Among them, the banknotes to be identified can be paper currencies such as RMB and Hong Kong dollars, and the infrared transmission image can be obtained through the light-emitting module and image receiving module in the banknote identification device, which are respecti...

Embodiment 2

[0076] Figure 2a It is a flow chart of the banknote identification method provided by Embodiment 2 of the present invention. In this embodiment, on the basis of the above-mentioned embodiments, the determination of the position of the optically variable ink mark in the infrared transmission image is specifically optimized as: obtaining the position of the white watermark mark in the infrared transmission image, and according to the white watermark The position of the mark determines the two candidate positions of the optical variable ink mark; the number of black dots in the two candidate positions is determined in turn, and when the number of black dots in the current candidate position is within the set range, the The current candidate position is determined as the position of the optically variable ink mark.

[0077] see Figure 2a , the method for identifying banknotes provided in this embodiment includes:

[0078] S201. Acquire an infrared transmission image of the ba...

Embodiment 3

[0091] Figure 3a It is a schematic flow chart of the banknote identification method provided by Embodiment 3 of the present invention. In this embodiment, on the basis of the above-mentioned embodiments, the determination of the direction of the optically variable ink mark in the infrared transmission image is specifically optimized as follows: obtaining the width and height of the optically variable ink mark; if the height is greater than the width, then determine that the optically variable ink mark is vertical; if the width is greater than the height, then determine that the optically variable ink mark is horizontal.

[0092] see Figure 3a , the method for identifying banknotes provided in this embodiment includes:

[0093] S301. Acquire an infrared transmission image of the banknote to be identified.

[0094] S302. Determine the position information of the optically variable ink mark in the infrared transmission image.

[0095] S303. Obtain the width and height of th...

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Abstract

The invention discloses a currency identification method and a currency identification device. The currency identification method comprises steps that an infrared transmission image of to-be-identified currency is acquired; position, direction, and characteristic information of optically variable ink in the infrared transmission image are determined; the version information and the denomination information of the to-be-identified currency are determined. By identifying the position, the direction, and the characteristic information of the infrared transmission image of the currency, the version information and the denomination information of the currency are further determined, and an effect of determining version information and denomination information of Hong Kong dollars quickly and accurately is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of image recognition, and in particular to a banknote recognition method and device. Background technique [0002] With the development of science and technology, various banknote identification devices have emerged, such as automatic teller machines and automatic vending machines, making people's shopping and consumption more convenient. [0003] The recognition method for banknotes in the prior art usually needs to generate two images of green light, red light and ultraviolet light for recognition. The difference is small. Most of the optically variable ink marks are denominations. For example, the optically variable ink marks of 100 characters make the recognition efficiency of banknotes low, and can no longer meet people's needs for fast and efficient banknote recognition. Contents of the invention [0004] Embodiments of the present invention provide a banknote identificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/162G07D7/20
CPCG07D7/162G07D7/20
Inventor 傅博扬
Owner SHENZHEN YIHUA COMP
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