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A banknote identification method and device

A banknote identification and banknote technology, which is applied in the field of banknote identification methods and devices, can solve the problems of low recognition accuracy of serial number

Active Publication Date: 2019-12-10
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a banknote identification method and device to solve the problem of low accuracy in serial number identification in the prior art

Method used

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  • A banknote identification method and device
  • A banknote identification method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0083] Such as figure 1 As shown, it is a schematic flowchart of a banknote identification method provided by an embodiment of the present invention, and the method may include:

[0084] Step S101, extracting the area where the serial number of the banknote to be recognized is located from the first image.

[0085] The first image is the image presented by the banknote to be recognized under the irradiation of red band visible light emitted by a contact image sensor (Contact ImageSensor, CIS). In this embodiment, the banknote to be identified is the fifth set of RMB currently in common use.

[0086] The Guanzi number is a series of codes on the lower left of the genuine RMB. The Guanzi number of each genuine RMB is unique. Among them, the "Guanzi" is the two or three English letters printed on the banknotes to mark the printing batch. The banknote printing factory arranges and prints according to certain rules; the "number" is the serial number of Arabic numerals printed beh...

Embodiment 2

[0131] Such as image 3 As shown, it is a schematic flowchart of a banknote identification method provided by an embodiment of the present invention, and the method may include:

[0132] Step S301, extracting the area where the serial number of the banknote to be recognized is located from the first image.

[0133] Step S302, dividing the area where the serial number of the banknote to be recognized is located into a first sub-area where the first character is located and a second sub-area where the second character is located.

[0134] Step S303, extracting a first pixel group occupied by the first character from the first sub-region.

[0135] Step S304, extracting a second pixel group occupied by the second character from the second sub-region.

[0136] Step S305, respectively calculating the first average gray value of the first pixel group and the second average gray value of the second pixel group.

[0137] Wherein, Step S301 to Step S305 are the same as Step S101 to S...

Embodiment 3

[0153] Such as Figure 4 As shown, it is a schematic block diagram of a banknote identification device provided by an embodiment of the present invention, and the device may include:

[0154] Serial number extraction module 401, configured to extract the area where the serial number of the banknote to be identified is located from the first image, the first image being the image presented by the banknote to be identified under the irradiation of visible light in the red band;

[0155] The area division module 402 is used to divide the area where the serial number of the banknote to be recognized is located into a first sub-area where the first character is located and a second sub-area where the second character is located, the first character is the area where the to-be-identified banknote is located. identifying the first four characters in the serial number of the banknote, and the second character is the last six characters in the serial number of the banknote to be identi...

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Abstract

The invention belongs to the field of financial equipment, and in particular relates to a banknote identification method and device. The method includes: firstly, extracting the area where the serial number of the banknote to be recognized is located from the first image, and then dividing the area where the serial number of the banknote to be identified is located into a first sub-area where the first character is located and the second sub-area where the second character is located, and respectively extract the first pixel group occupied by the first character from the first sub-area, and extract the second character from the second sub-area The second pixel group occupied, finally, respectively calculate the first average gray value of the first pixel group and the second average gray value of the second pixel group, and according to the first average gray value Judging the authenticity of the banknote to be identified based on the second average gray value. Through the present invention, the special optical property of the serial number is fully utilized, and the accuracy rate of recognizing the serial number can be greatly improved.

Description

technical field [0001] The invention belongs to the field of financial equipment, and in particular relates to a banknote identification method and device. Background technique [0002] Banknote identification is one of the basic functions of various ATM machines. Its main principle is to use various marks on banknotes to judge the authenticity of banknotes, so as to prevent abnormal currency from flowing into the market and affect the normal financial order. [0003] The existing banknote recognition technology generally collects banknote images by selecting green visible light in the visible light band, and processes and analyzes the collected images to judge the authenticity of banknotes. This method has a better recognition effect on special areas such as watermarks. High accuracy can be obtained, but the accuracy for serial number recognition is relatively low. Contents of the invention [0004] In view of this, the embodiment of the present invention provides a bank...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/0047G06K9/34
CPCG07D7/2016G07D7/2075G06V30/158G06V10/267
Inventor 黄勃
Owner SHENZHEN YIHUA COMP
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