WO2016049979A1

WO2016049979A1 - Bank note recognition method and apparatus

Info

Publication number: WO2016049979A1
Application number: PCT/CN2014/092868
Authority: WO
Inventors: 魏伟; 谢爱文
Original assignee: 浙江维融电子科技股份有限公司
Priority date: 2014-09-30
Filing date: 2014-12-03
Publication date: 2016-04-07
Also published as: CN104361674A

Abstract

A bank note recognition method and apparatus. The method comprises: a terminal acquires a bank note image (101); the terminal analyzes and processes the acquired bank note image to acquire image characteristic information (102); and the terminal compares the image characteristic information with a preset image characteristic to acquire a bank note recognition result (103). The apparatus comprises an acquisition module (301), an analysis module (302) and a comparison module (303). By means of the bank note recognition apparatus and method, a counterfeit bank note can be accurately and timely recognized, and a normal life and market order can be ensured.

Description

Banknote identification method and device

The present application claims priority to Chinese Patent Application No. 201410514467.8, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure relates to the field of information processing technologies, and in particular, to a banknote identification method and apparatus.

Background technique

With the improvement of people's living standards, the demand for financial management is also growing, and the bank's business is also enriched. At present, in daily life, the phenomenon of counterfeit banknotes is inevitable, and the means of forgery are becoming more and more sophisticated. , causing great troubles for people's lives.

At present, the identification of counterfeit currency is usually identified by means of a money detector, but the technology of counterfeiting banknotes is constantly developing, and the function update of the money detector has a certain lag, especially for the newly appeared counterfeit currency on the market cannot be accurately identified, even through people. Active identification, different people have different ability to identify the authenticity of banknotes, and counterfeit currency information needs to be broadcasted through media and other channels to be accepted by people. Counterfeit money can still be identified accurately and in time, thus affecting market order and normal people. life.

Summary of the invention

In order to overcome the problem that the counterfeit currency cannot be accurately and timely recognized in the prior art banknote identification method, the embodiment of the present disclosure provides a banknote identification method and device.

According to a first aspect of the embodiments of the present disclosure, a banknote identification method is provided, including:

The terminal acquires an image of the banknote;

The terminal performs analysis processing on the acquired image of the banknote to acquire image feature information;

The terminal compares the image feature information with the preset image feature to obtain a banknote recognition result, wherein the preset image feature is feature information of a genuine coin.

Further, the acquiring the image of the banknote by the terminal specifically includes:

A banknote image is obtained by photographing or scanning a banknote using a terminal having a white light or multi-spectral image capturing function or an irradiation shooting function with ultraviolet light or infrared light.

Further, the terminal performs an analysis process on the acquired image of the banknote, and acquires image feature information, which specifically includes:

The terminal acquires a pixel point of the banknote image;

The terminal calculates a gray value of the pixel, and extracts the image feature information according to the gray value.

The terminal acquires a texture and a local gray value of the banknote image;

The terminal detects a boundary according to the texture of the banknote image and the local gray value;

The terminal acquires image feature information according to the boundary.

Further, the image feature information includes: a fixed pattern and a watermark, a holographic magnetic window security thread, a hand-carved avatar, an invisible denomination number, an offset micro-text, a light-changing ink denomination number, a yin-positive complementary printing pattern, and an engraved gravure printing pattern. The two-color shaped horizontal number and the infrared light pattern under the infrared light irradiation, and the ultraviolet light pattern under the ultraviolet light irradiation.

Further, the terminal compares the image feature information with the preset image feature, and obtains the banknote recognition result, including:

The terminal sets the image feature information and the fixed pattern and watermark in the threshold image sample information, the holographic magnetic window security thread, the hand-carved avatar, the invisible denomination number, the offset micro-text, the light-changing ink denomination number, the yin-yang complementary printing pattern, Engraving gravure printing pattern, two-color shaped cross-number and infrared pattern under infrared illumination, and purple pattern under violet illumination are compared one by one;

When the image feature information acquired by the terminal is successfully compared with all the preset image feature information, the recognition result that the current banknote is a genuine coin is obtained;

When any information is unsuccessful, the current banknote is obtained as a counterfeit currency identification result.

Further, the method further includes displaying the banknote recognition result to a user.

In a second aspect, the present disclosure provides a bill identification device, the device comprising:

Obtaining a module for acquiring an image of a banknote;

An analysis module, configured to perform analysis processing on the acquired image of the banknote, and acquire image feature information;

The comparison module is configured to compare the image feature information with the preset image feature preset image feature to obtain a banknote recognition result, wherein the preset image feature preset image feature is characteristic information of the genuine currency.

Further, the acquisition module is specifically configured to capture or scan a banknote by using a terminal having a white light or multi-spectral image capturing function or a single-spectrum illumination shooting function with ultraviolet light or infrared light to obtain a banknote image.

Further, the analysis module is configured to acquire a pixel point of the banknote image; calculate a gray value of the pixel point, and extract the image feature information according to the gray value.

Further, the analysis module is configured to acquire a texture and a local gray value of the banknote image; and obtain a boundary according to the texture of the banknote image and the local gray value; and acquire image feature information according to the boundary.

Further, the analysis module is configured to use the image feature information and a fixed pattern and watermark in the preset image sample information, a holographic magnetic window security thread, a hand-engraved avatar, an invisible denomination number, an offset micro-text, a light-changing ink. Denomination figures, yin and yang complementary print patterns, engraved gravure printing patterns, two-color shaped cross-numbers and infrared patterns illuminated by infrared light, purple patterns under violet illumination Performing a one-to-one comparison; when the image feature information acquired by the terminal is compared with all the preset image feature information, the current banknote is obtained as a real coin recognition result; when any information comparison is unsuccessful, the current banknote is acquired The result of the identification of counterfeit currency.

Further, the device further includes:

And a display module, configured to display the banknote recognition result to a user.

The invention has the following beneficial effects:

Obtaining the banknote image information through the terminal captured image, and comparing the acquired image information with the preset image feature. Since the preset image feature is the feature information of the genuine coin, the image information of the comparison banknote and the preset image feature information are It is possible to identify the banknotes. This identification method enables accurate and timely identification of banknotes. Moreover, this method of identification does not depend on the ability of a person to recognize a banknote. People only need to install an APP to easily identify the authenticity of the banknotes through smart devices, improve the user experience, and further protect the normal life and market order.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The accompanying drawings, which are incorporated in the specification of FIG

FIG. 1 is a flow chart of a banknote identification method according to an exemplary embodiment.

2 is a flow chart of a banknote identification method, according to a specific exemplary embodiment.

FIG. 3 is a block diagram of a banknote identification device, according to an exemplary embodiment.

4 is a block diagram of a bill identifying device, according to a specific exemplary embodiment.

detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

FIG. 1 is a flowchart of a method for identifying a banknote according to an exemplary embodiment, which is applied to a terminal, wherein the terminal may be a smart device such as a smart phone or a tablet, or may be a PC with an external camera and a scanning device. And other devices, as shown in Figure 1, the steps include the following steps:

Step 101: The terminal acquires an image of the banknote:

Specifically, the terminal can acquire the banknote image by taking a photo or scanning.

Step 102: The terminal performs analysis processing on the acquired image of the banknote to acquire image feature information, where the image feature information includes: a fixed pattern and a watermark, a holographic magnetic window security thread, a hand-carved avatar, an invisible denomination number, and an offset printing. Miniature text, light-changing ink denomination number, yin-yang complementary printing pattern, engraving gravure printing pattern, two-color shaped cross-number and infrared pattern under infrared illumination, purple light pattern under violet illumination; wherein the fixed pattern can be characters, flowers, and the like.

Step 103: The terminal compares the image feature information with the preset image feature preset image feature to obtain a banknote recognition result, wherein the preset image feature preset image feature is feature information of a genuine coin.

In the embodiment of the present disclosure, the banknote image information is acquired by the terminal captured image, and the acquired image information is compared with the preset image feature. Since the preset image feature is the feature information of the genuine currency, the image information of the comparison banknote is obtained. The banknotes can be identified with preset image feature information. When both When they match, the banknote is recognized as a genuine coin, and vice versa, the banknote is recognized as a counterfeit currency. This identification method enables accurate and timely identification of banknotes. Moreover, the recognition result of such paper authenticity does not depend on the ability of the person to recognize the banknote. People only need to install an APP to easily identify the authenticity of the banknotes through smart devices, improve the user experience, and further protect the normal life and market order.

The technical solutions of the present disclosure will be described below by way of specific embodiments.

In one embodiment, the above disclosure is described in detail as shown in FIG. The specific process is as follows:

In step 201, a banknote image is obtained by photographing or scanning a banknote using a terminal having a white light or multi-spectral image capturing function or a single-spectrum illumination shooting function with ultraviolet light or infrared light.

Wherein, the terminal can be equipped with a white light or multi-spectral image capturing function or a smart device with a single-lighting function camera with ultraviolet light and infrared light; multi-spectral photography refers to mixing a plurality of single-wavelength light sources into one mixed light source at the same time. , a number of different spectrally illuminated photographs of the target are obtained, wherein the spectral range is visible light, ultraviolet light, and infrared light.

Step 202: The terminal acquires a pixel point of the banknote image.

Step 203: The terminal calculates a gray value of the pixel, and extracts feature information of the image according to the gray value.

It should be noted that the foregoing steps 202-203 can also be implemented by the following steps:

Step A-1: The terminal acquires a texture and a local gray value of the image of the banknote;

Step A-2: The terminal detects a boundary according to the texture of the banknote image and the local gray value;

Step A-3: The terminal acquires image feature information according to the boundary.

Step 204: The terminal sets the image feature information and the fixed pattern and watermark in the threshold image sample information, the holographic magnetic window security thread, the hand-engraved avatar, the invisible denomination number, the offset micro-text, the light-changing ink denomination number, and the yin and yang complementary pairs. Printed pattern, engraved gravure printing pattern, two-color shaped The horizontal number is compared with the infrared pattern under infrared light illumination, the purple light pattern under violet illumination, etc., and when the comparison is successful, step 205 is performed; when any information comparison is unsuccessful, step 206 is performed.

Step 205: Acquire a recognition result that the current banknote is a real coin.

Step 206: Acquire a recognition result that the current banknote is a counterfeit currency.

With the technical solution in the embodiment, the image is captured by the terminal having the white light or multi-spectral image capturing function, and the acquired image information is compared with the preset image information to realize the identification of the banknote. The identification method can quickly and accurately identify the banknotes, so that people only need to install an APP to easily identify the true and false of the banknotes through the smart device, thereby improving the user experience and further ensuring normal life and market order. .

Based on the banknote identification method provided by the above embodiment, the present disclosure also provides a banknote identification device, which is specifically referred to FIG.

3 is a schematic structural diagram of a bill identifying device provided by the present disclosure, as shown in FIG. 3, which includes:

An obtaining module 301, configured to acquire an image of a banknote;

The analyzing module 302 is configured to perform analysis processing on the acquired image of the banknote to acquire image feature information; the image feature information includes: a fixed pattern and a watermark, a holographic magnetic window security thread, a hand-carved avatar, an invisible denomination number, and an offset printing Miniature text, light variable ink denomination number, yin and yang complementary print pattern, engraved gravure printing pattern, two-color shaped cross-number and infrared pattern under infrared illumination, purple light illumination under violet illumination; wherein the fixed pattern includes: characters and flowers.

The comparison module 303 is configured to compare the image feature information with the preset image feature to obtain a banknote recognition result, wherein the preset image feature is feature information of a genuine coin.

Further, the analysis module is configured to use the image feature information and the fixed pattern and watermark in the threshold image sample information, the holographic magnetic window security thread, the hand-engraved avatar, the invisible denomination number, the offset micro-text, and the optical variable ink denomination. Digital, yin and yang complementary printing patterns, engraved gravure printing patterns, two-color shaped cross-numbers and infrared patterns illuminated by infrared light, purple light patterns under violet illumination, etc.; one-to-one comparison of pattern feature information acquired by the terminal and preset When all the image feature information is successfully matched, the recognition result of the current banknote is the real coin; when any information is unsuccessful, the current banknote is obtained as the counterfeit currency recognition result.

Further, in conjunction with the apparatus shown in FIG. 3, as shown in FIG. 4, the apparatus further includes:

The display module 401 is configured to display the banknote recognition result to the user.

With regard to the apparatus in the above embodiment, the specific manner in which the respective parts perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

Embodiments of the present disclosure also provide a banknote identification device. For example, the device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

Embodiments of the present disclosure also provide an application client for banknote identification. For example, the application client can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

A non-transitory computer readable storage medium when instructions in the storage medium are used by an application client When executed, the application client is enabled to perform a banknote identification method.

Other embodiments of the invention will be apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present invention, which are in accordance with the general principles of the present invention and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be considered as illustrative only,

It is to be understood that the invention is not limited to the details of the details of The scope of the invention is limited only by the appended claims.

Claims

A banknote identification method, which is characterized in that it is applied to a terminal side, and includes:

The terminal acquires an image of the banknote;

The terminal performs analysis processing on the acquired image of the banknote to acquire image feature information;

The terminal performs a difference comparison with the preset image feature according to the image feature information to obtain a banknote recognition result, wherein the preset image feature is feature information of a genuine coin.
The method according to claim 1, wherein the acquiring the image of the banknote by the terminal comprises:

A banknote image is obtained by photographing or scanning a banknote using a terminal having a white light or multi-spectral image capturing function or a single-spectrum illumination shooting function with ultraviolet light or infrared light.
The method according to claim 1, wherein the terminal performs an analysis process on the acquired image of the banknote to acquire image feature information, which specifically includes:

The terminal acquires a pixel point of the banknote image;

The terminal calculates a gray value of the pixel, and extracts the image feature information according to the gray value.
The method according to claim 1, wherein the terminal performs an analysis process on the acquired image of the banknote to acquire image feature information, which specifically includes:

The terminal acquires a texture and a local gray value of the banknote image;

The terminal detects a boundary according to the texture of the banknote image and the local gray value;

The terminal acquires image feature information according to the boundary.
The method according to any one of claims 1-4, wherein the image feature information comprises: a fixed pattern and a watermark, a holographic magnetic window security thread, a hand-engraved avatar, an invisible denomination number, an offset micro-text, a light-changing ink denomination. Digital, yin and yang complementary printing patterns, engraved gravure printing patterns, two-color shaped cross-numbers and infrared light patterns illuminated by infrared light, ultraviolet light under ultraviolet light Light pattern.
The method according to claim 5, wherein the terminal compares the image feature information with the preset image feature to obtain a banknote recognition result, including:

The terminal sets the image feature information and the fixed image and the watermark in the preset image feature information, the holographic magnetic window security thread, the hand-carved avatar, the invisible denomination number, the offset micro-text, the light-changing ink denomination number, the yin-yang complementary printing pattern , engraving gravure printing pattern, two-color shaped cross-number and infrared light pattern under infrared light illumination, and ultraviolet light pattern under ultraviolet light illumination are compared one by one;

When the image feature information acquired by the terminal is successfully compared with all the preset image feature information, the recognition result that the current banknote is a genuine coin is obtained;

When any information is unsuccessful, the current banknote is obtained as a counterfeit currency identification result.
The method of claim 1 further comprising:

The banknote recognition result is displayed to the user.
A banknote identification device, characterized in that the device comprises:

Obtaining a module for acquiring an image of a banknote;

An analysis module, configured to perform analysis processing on the acquired image of the banknote, and acquire image feature information;

The comparison module is configured to compare the image feature information with the preset image feature to obtain a banknote recognition result, wherein the preset image feature is feature information of a genuine coin.
The device according to claim 8, wherein the acquisition module is specifically configured to capture or scan a banknote by using a terminal having a white light or multi-spectral image capturing function or an illumination shooting function with ultraviolet light or infrared light to obtain a banknote image. .
The apparatus according to claim 8, wherein the analysis module is configured to acquire a pixel point of the banknote image; calculate a gray value of the pixel point, and extract the image feature information according to the gray value .
The apparatus according to claim 8, wherein said analysis module is configured to acquire a texture of the banknote image and a local gray value; a boundary is detected according to the texture of the banknote image and the local gray value; and image feature information is acquired according to the boundary.
The apparatus according to any one of claims 8-11, wherein the image feature information comprises: a fixed pattern and a watermark, a holographic magnetic window security thread, a hand-engraved avatar, an invisible denomination number, an offset micro-text, a light-changing ink denomination. Digital, yin and yang complementary print patterns, engraved gravure printing patterns, two-color shaped cross-numbers and infrared light patterns under infrared light illumination, ultraviolet light patterns under ultraviolet light.
The device according to claim 12, wherein the analysis module is configured to fix the image feature information and the preset image sample information with a watermark, a holographic magnetic window security thread, a hand-engraved avatar, and an invisible shape. Denomination figures, offset micro-finger text, light-changing ink denomination figures, yin-yang complementary print patterns, engraved gravure printing patterns, two-color shaped cross-numbers and infrared patterns under infrared illumination, and violet patterns under violet illumination are compared one by one; When the image feature information acquired by the terminal is compared with all the preset image feature information, the recognition result of the current banknote is obtained as a real coin; when any information is unsuccessful, the current banknote is obtained as a counterfeit currency.
The device according to claim 8, wherein the device further comprises:

And a display module, configured to display the banknote recognition result to a user.