WO2020156552A1

WO2020156552A1 - Two-dimensional code generation and recognition methods and devices

Info

Publication number: WO2020156552A1
Application number: PCT/CN2020/074167
Authority: WO
Inventors: 陈兴; 金亮; 潘磊
Original assignee: 北京嘀嘀无限科技发展有限公司
Priority date: 2019-01-31
Filing date: 2020-02-02
Publication date: 2020-08-06
Also published as: CN111507446B; CN111507446A

Abstract

Two-dimensional code generation and recognition methods and devices, relating to the field of digital image recognition technology. The two-dimensional code generation method comprises: adding onto a pre-set image a two-dimensional code to be fused, so as to acquire a two-dimensional code image (S101); and according to a pre-set fusion rule, the two-dimensional code image and a two-dimensional code to be generated, generating a target two-dimensional code (S102). The invention can fuse on a pre-set image a two-dimensional code to be fused, to generate a two-dimensional code image, and then according to a pre-set fusing rule, the two-dimensional code image and/or a two-dimensional code to be generated, generate a target two-dimensional code image, the target two-dimensional code image containing information concerning the two-dimensional code to be fused and the two-dimensional code to be generated, achieving the effect that after a pre-set image is inserted into a target two-dimensional code, the information carried by the two-dimensional code and the fault tolerance capability of the two-dimensional code remain unchanged.

Description

Method and device for generating and identifying two-dimensional code

Cross references to related applications

This application claims the priority of the Chinese patent application with the application number CN201910100803.7 and the name "Method and device for generating and identifying QR code" submitted to the China Patent Office on January 31, 2019, the entire contents of which are incorporated by reference In this application.

Technical field

This application relates to the technical field of digital image recognition, and specifically to a method and device for generating and recognizing a two-dimensional code.

Background technique

With the development of science and technology, QR codes have become a convenient carrier for information dissemination, and the integration of QR codes is getting higher and higher. Users can scan the QR codes to obtain relevant product information or link to relevant web pages to browse more information.

At present, when generating a two-dimensional code, a visual icon is often inserted in the center of the two-dimensional code to increase the visual effect and achieve personalization.

However, after inserting the visual icon, the information carried by the QR code will be reduced, and the fault tolerance of the QR code will be reduced.

Summary of the invention

In view of this, the purpose of the embodiments of the present application is to provide a QR code generation method, recognition method, generation device, recognition device, electronic equipment, and readable storage medium, so as to solve the problem of inserting a visual icon on the QR code. It will lead to the problem of less information carried by the QR code, and reduced fault tolerance of the QR code.

The first aspect of the application provides a method for generating a two-dimensional code, which may include: adding a two-dimensional code to be fused to a preset image to obtain a two-dimensional code image. According to the preset fusion rules, the two-dimensional code image and/or the two-dimensional code to be generated, the target two-dimensional code is generated.

Optionally, adding a QR code to be fused to the preset image to obtain a QR code image includes: adjusting the pixel color of the QR code to be fused, obtaining the adjusted QR code to be fused; The two-dimensional code to be fused is superimposed with the preset image to obtain the two-dimensional code image.

Optionally, superimposing the adjusted two-dimensional code to be fused with the preset image to obtain the two-dimensional code image includes: using the adjusted two-dimensional code to be fused as a coating of the preset image to obtain the two-dimensional code image , Wherein the color of each pixel in the coating is matched with the color of the pixel at the corresponding position of the original coating of the preset image according to the preset coating rule.

Optionally, adding the two-dimensional code to be fused to the preset image, before acquiring the two-dimensional code image, further includes: obtaining the two-dimensional code to be generated according to the original two-dimensional code and extracting the two-dimensional code to be fused, wherein The two-dimensional code includes a region to be fused with a preset shape.

Optionally, generating the target two-dimensional code according to preset fusion rules, the two-dimensional code image and/or the two-dimensional code to be generated includes: converting the two-dimensional code image into a shape matching the area to be fused to obtain the target two-dimensional code Code image. The target two-dimensional code image is fused to the to-be-fused area of the two-dimensional code to be generated to generate the target two-dimensional code.

The second aspect of the present application provides a method for recognizing a two-dimensional code, including: acquiring an image to be recognized, the image to be recognized includes a target two-dimensional code, and the target two-dimensional code is based on preset fusion rules, two-dimensional code images and/or waiting Generate a two-dimensional code generation, where the two-dimensional code image is obtained by fusion of the preset image and the two-dimensional code to be fused. The two-dimensional code recognition algorithm is used to identify the two-dimensional code to be fused and the two-dimensional code to be generated respectively, and the identification information of the image to be recognized is recognized.

Optionally, the image to be identified further includes: a candidate identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified. Using the two-dimensional code recognition algorithm, respectively identify the two-dimensional code to be fused and the two-dimensional code to be generated, before obtaining the two-dimensional code information of the target two-dimensional code, it also includes: recognizing and obtaining the target two-dimensional code and the candidate in the image to be recognized Identify the logo.

Optionally, using a two-dimensional code recognition algorithm to separately identify the two-dimensional code to be fused and the two-dimensional code to be generated, and to identify and obtain the identification information of the image to be recognized, including: using a two-dimensional code recognition algorithm to respectively identify the two-dimensional code to be fused And the two-dimensional code to be generated, identify and obtain the two-dimensional code information of the image to be recognized. Alternatively, if the two-dimensional code recognition algorithm is used to identify and obtain the two-dimensional code information of the image to be recognized, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.

Optionally, the candidate identification is a character string or an identification code, where the character string includes one or a combination of the following characters: numbers, letters, and symbols.

The third aspect of the present application provides a QR code generation device, including:

The acquiring module is configured to add a two-dimensional code to be fused on the preset image to obtain a two-dimensional code image. The generating module is configured to generate the target two-dimensional code according to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated.

Optionally, the acquisition module is specifically configured to use the adjusted QR code to be fused as a coating of the preset image to obtain the QR code image, wherein the color of each pixel in the coating is in accordance with the preset coating rule Match the color of the pixels at the corresponding position of the original coating of the preset image.

Optionally, the acquisition module is specifically configured to use the two-dimensional code to be fused as a coating of the preset image to obtain the two-dimensional code image, wherein the color information of each pixel in the coating and the pixel at the corresponding position of the original coating match.

Optionally, it further includes an extraction module configured to obtain the two-dimensional code to be generated according to the original two-dimensional code and extract the two-dimensional code to be fused, wherein the two-dimensional code to be generated includes a region to be fused with a preset shape.

Optionally, the generating module is specifically configured to convert the two-dimensional code image into a shape matching the region to be fused to obtain the target two-dimensional code image. The target two-dimensional code image is fused to the to-be-fused area of the two-dimensional code to be generated to generate the target two-dimensional code.

The fourth aspect of the present application provides a two-dimensional code recognition device, including:

The acquisition module is configured to collect and acquire the image to be recognized, the image to be recognized includes a target QR code, and the target QR code is generated according to preset fusion rules, a QR code image, and/or a QR code to be generated, where the QR code image It is obtained by fusion of the preset image and the QR code to be fused. The recognition module is configured to use a two-dimensional code recognition algorithm to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and to recognize and obtain the identification information of the image to be recognized.

Optionally, the image to be identified further includes: a candidate identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified. The recognition module is also configured to recognize and acquire the target two-dimensional code and the candidate recognition mark in the image to be recognized.

Optionally, the recognition module is specifically configured to adopt a two-dimensional code recognition algorithm to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and to recognize and obtain the two-dimensional code information of the image to be recognized. Alternatively, if the two-dimensional code recognition algorithm is used to identify and obtain the two-dimensional code information of the image to be recognized, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.

The fifth aspect of the present application provides an electronic device, including a processor, a storage medium, and a bus. The storage medium stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the storage medium pass through In bus communication, the processor executes machine-readable instructions to execute the steps of the two-dimensional code generation method provided in the first aspect or the two-dimensional code recognition method provided in the second aspect.

The sixth aspect of the present application provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is run by a processor, it executes the two-dimensional code generation method or the second method provided in the first aspect. The two-dimensional code recognition method provided by the two aspects.

Based on the above first aspect, it is possible to generate a QR code image by fusing the QR code to be fused on a preset image, and then generate the target two according to the preset fusion rule, the QR code image and/or the QR code to be generated QR code image, the target QR code image contains the information of the QR code to be fused and the QR code to be generated, which realizes the insertion of a preset image containing the QR code information in the target QR code, which can improve the load of the QR code Information and fault tolerance.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

Fig. 1 shows a flowchart of a method for generating a QR code provided by an embodiment of the present application;

FIG. 2 shows a flowchart of a method for generating a QR code according to another embodiment of the present application;

FIG. 3 shows a flowchart of a method for generating a QR code according to another embodiment of the present application;

FIG. 4 shows a flowchart of a method for generating a QR code according to another embodiment of the present application;

FIG. 5 shows a flowchart of a two-dimensional code recognition method provided by an embodiment of the present application;

FIG. 6 shows a flowchart of a two-dimensional code recognition method provided by another embodiment of the present application;

FIG. 7 shows a flowchart of a two-dimensional code recognition method provided by another embodiment of the present application;

FIG. 8 shows a schematic structural diagram of a two-dimensional code generating device provided by an embodiment of the present application;

FIG. 9 shows a schematic structural diagram of a two-dimensional code generating apparatus provided by another embodiment of the present application;

FIG. 10 shows a schematic structural diagram of a two-dimensional code recognition device provided by an embodiment of the present application;

FIG. 11 shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. It should be understood that this application is attached The drawings are only for the purpose of illustration and description, and are not used to limit the protection scope of this application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowchart used in this application shows operations implemented according to some embodiments of this application.

It should be understood that the operations of the flowchart may be implemented out of order, and steps without logical context may be reversed in order or implemented at the same time. In addition, under the guidance of the content of this application, those skilled in the art can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present application.

It should be noted that the term "including" will be used in the embodiments of this application to indicate the existence of the features declared later, but it does not exclude the addition of other features.

At present, there are many types of two-dimensional codes, such as layered two-dimensional codes and/or matrix two-dimensional codes.

Typical layered two-dimensional codes include: portable data file 417 (Portable Data File, PDF417), code 49 (Code 49) and/or code 16K (Code 16K), etc.; typical matrix two-dimensional codes include: code one (Code One), Quick Response Code (Quick Response Code, QR Code), Data Matrix (Data Matrix) and/or Han Xin Code (Han Xin Code), etc.

In this application, QR Code is used as the type of two-dimensional code for description, but the type of two-dimensional code that can be applied to the two-dimensional code identification method provided in this application is not limited to this.

Fig. 1 shows a flowchart of a method for generating a two-dimensional code provided by an embodiment of the present application. The execution subject of the method may be a terminal capable of generating a two-dimensional code, such as a mobile phone, a tablet computer, a desktop computer, and/or a wearable device, etc., which is not limited herein.

As shown in Figure 1, the two-dimensional code generation method includes:

S101: Add a two-dimensional code to be fused to a preset image to obtain a two-dimensional code image.

In some embodiments, the preset image may include icons, avatars, and/or designated pictures, etc., for example, the trademark icon in the QR code on Qingju Bike, the user's avatar in the WeChat QR code, etc., which are not limited here. .

Among them, the two-dimensional code to be fused may be part of the information of the two-dimensional code or a complete two-dimensional code. For example, take a partial cut out of the complete QR code as the QR code to be fused, or generate a QR code to be fused based on part of the information of the QR code and the QR code generation algorithm, or extract a specific QR code The information as a two-dimensional code to be fused (for example, two-dimensional code version information and/or brand information, etc.), etc., is not limited here.

It should be noted that, after the two-dimensional code to be fused into the preset image, the two-dimensional code in the obtained two-dimensional code image includes a visible two-dimensional code or an invisible two-dimensional code.

Among them, the visible two-dimensional code refers to the two-dimensional code image that can display the pixels of the two-dimensional code to be fused. The specific display method is not limited here. The transparency may be low or the color matching the preset image is not obvious. It can be observed after zooming in to a certain degree or adjusting to a certain brightness. The invisible two-dimensional code means that the two-dimensional code to be fused is hidden in the two-dimensional code image, that is, the two-dimensional code to be fused is not displayed, and it can be obtained only through the recognition of some algorithms.

Wherein, when the two-dimensional code to be fused is fused with the preset image, point distribution, row distribution or column distribution can be adopted, but it is not limited to this.

S102: Generate the target two-dimensional code according to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated.

Wherein, when the ratio of the size of the preset image to the size of the two-dimensional code to be generated is greater than the preset threshold, the recognition effect of the point distribution is better. When the ratio of the size of the preset image to the size of the two-dimensional code to be generated is less than the preset threshold, the recognition effect of the line distribution is better.

For example, in a possible implementation, the two-dimensional code to be fused in the two-dimensional code image is the partial information in the two-dimensional code to be generated, and the two-dimensional code image to be generated is generated after the two-dimensional code to be fused into the preset image You can see the pixels containing the QR code to be fused on the preset image. For example, the QR code to be fused is a layer of the preset image, but the color is very light and you need to zoom in to see some QR codes. pixel. For example, the original two-dimensional code is composed of black and white dots, and partial information is extracted as the two-dimensional code to be fused. The original white part is transparent to display the content corresponding to the preset image, and the original black part is adjusted to a lighter color, such as adjusting It is light gray, milky white, or the same color as the corresponding pixel of the preset image but lighter, etc. There is no restriction here.

The two-dimensional code to be generated includes a blank area, and the two-dimensional code image can be added to the blank area according to a preset fusion rule to obtain the target two-dimensional code.

In this embodiment, it is possible to generate a two-dimensional code image by fusing the two-dimensional code to be fused on a preset image, and then generate the target two according to the preset fusion rule, the two-dimensional code image, and/or the two-dimensional code to be generated. QR code image, the target QR code image contains the information of the QR code to be fused and the QR code to be generated, which realizes the insertion of a preset image containing the QR code information in the target QR code, which can improve the load of the QR code Information and fault tolerance.

FIG. 2 shows a flowchart of a method for generating a two-dimensional code provided by another embodiment of the present application.

Optionally, as shown in FIG. 2, adding a QR code to be fused to the preset image to obtain a QR code image includes:

S101-1: Adjust the pixel color of the QR code to be fused, and obtain the adjusted QR code to be fused.

It should be noted that, in order to prevent the QR code to be fused on the preset image from being prominent, you can first adjust the pixel color of the QR code to be fused to obtain the adjusted QR code to be fused.

Optionally, adjust the color of the pixels of the two-dimensional code to be merged to be lighter.

S101-2: Superimpose the adjusted QR code to be fused with the preset image to obtain a QR code image.

Optionally, superimposing the adjusted QR code to be fused with a preset image to obtain a QR code image may include:

Use the adjusted QR code to be fused as a coating of the preset image to obtain the QR code image, where the color of each pixel in the coating is in accordance with the preset coating rules and the pixel at the corresponding position of the original coating of the preset image Match the color of the dots.

In a possible implementation manner, the value of the pixel corresponding to the black part of the QR code to be fused is increased by a preset value and the value of the pixel corresponding to the white part is decreased by the preset value, or the pixel corresponding to the white part The value of is increased or decreased by the preset value and the value of the pixel corresponding to the black part remains unchanged, and the adjusted QR code to be fused is obtained. Then, overlay the adjusted QR code to be fused with the preset image.

Optionally, the value of the pixel point corresponding to the black part after adjustment is close to the value of the pixel point at the corresponding position in the original image of the preset image, for example, the difference is less than a preset threshold. The transparency of the pixels corresponding to the white part can also be adjusted to highlight the color of the pixel at the corresponding position in the original image of the preset image, or the value of the pixel corresponding to the white part is adjusted to the value of the pixel at the corresponding position in the original image of the preset image The values are the same, and this application does not make specific restrictions.

Fig. 3 shows a flowchart of a method for generating a two-dimensional code provided by another embodiment of the present application.

Optionally, as shown in FIG. 3, adding a two-dimensional code to be fused on the preset image, and before acquiring the two-dimensional code image, it also includes:

S100: Obtain the two-dimensional code to be generated according to the original two-dimensional code, and extract the two-dimensional code to be fused.

Wherein, the two-dimensional code to be generated includes a region to be fused with a preset shape.

Optionally, a part of the blank area is dug out of the original two-dimensional code, where the two-dimensional code information that originally occupied the blank area can be distributed to other reserved areas, so that the two-dimensional code information in the reserved area is more dense. In addition, part or all of the two-dimensional code information is extracted from the original two-dimensional code information as the two-dimensional code to be fused.

Or, optionally, a part of the two-dimensional code information that originally occupies the blank area can be selected to be distributed in the reserved area, and the other part is used as the two-dimensional code to be fused. Among them, some important information can be used as a QR code to be fused.

It should be noted that the shape of the region to be merged in the two-dimensional code to be generated may be rectangular, circular, polygonal, and/or irregular graphics, etc., which is not limited here.

In some embodiments, to extract the two-dimensional code to be fused, the cropped original two-dimensional code can be used as the two-dimensional code to be fused, or preset features, such as anchor points and anchor point separators, can be extracted based on the original two-dimensional codes , Correct features such as graphics, version information and/or error tolerance information, and use the extracted features as the data contained in the data area of the two-dimensional code to generate the to-be-fused two-dimensional code. What information is included in the extracted QR code to be fused is not limited here, and can be adjusted according to different situations during application.

Fig. 4 shows a flowchart of a method for generating a two-dimensional code provided by another embodiment of the present application.

Optionally, as shown in FIG. 4, generating the target two-dimensional code according to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated includes:

S102-1: Convert the two-dimensional code image into a shape matching the area to be fused to obtain the target two-dimensional code image.

In some embodiments, the two-dimensional code image has the same shape as the preset image, and the shape of the area to be fused is reserved according to the shape of the preset image, and only the size of the two-dimensional code image and the size of the area to be fused need to be matched.

For example, if the two-dimensional code image and the preset image are a 10*10 square image, and the area to be fused is a 5*5 square area, the two-dimensional code image needs to be adjusted to a 5*5 square image.

In some embodiments, the shape of the two-dimensional code image is different from the shape of the area to be fused, it is necessary to adjust the shape of the two-dimensional code image according to the shape of the area to be fused, and then the size of the two-dimensional code image is The size of the fusion area matches.

For example, if the shape of the two-dimensional code image is a circle, and the shape of the area to be fused is a square, the shape of the two-dimensional code image is adjusted to a square. The adjustment method includes adding a square background to the two-dimensional code image and/or The code image is cropped into a square, etc., and there is no restriction here. Then, the size of the two-dimensional code map adjusted to a square shape and the size of the area to be fused are adjusted to match the size.

It should be noted that the above-mentioned image adjustment methods are only examples, and other adjustment methods are also possible, for example, directly adjusting the size of a QR code image whose shape is different from the area to be fused to fit in the area to be fused. It does not adjust the shape, and there is no restriction here.

S102-2: Fuse the target two-dimensional code image to the to-be-fused area of the two-dimensional code to be generated to generate the target two-dimensional code.

Optionally, the two-dimensional code image adjusted in S102-1 is superimposed and fused into the area to be fused to generate the target two-dimensional code.

Fig. 5 shows a flowchart of a two-dimensional code recognition method provided by an embodiment of the present application. The execution subject of this method may be a terminal with two-dimensional code scanning and/or recognition functions, such as a mobile phone, a tablet computer, and/or a wearable device, which is not limited here.

As shown in Fig. 5, corresponding to the foregoing two-dimensional code generation method, the present application also provides a two-dimensional code recognition method, including:

S201: Acquire an image to be recognized, the image to be recognized includes a target two-dimensional code, and the target two-dimensional code is generated according to a preset fusion rule, a two-dimensional code image, and/or a two-dimensional code to be generated.

Among them, the two-dimensional code image is obtained by fusion of the preset image and the two-dimensional code to be fused.

In this embodiment, the target two-dimensional code is the target two-dimensional code generated by the above-mentioned two-dimensional code generation method, and the method for generating the two-dimensional code is not described here.

S202: Adopt a two-dimensional code recognition algorithm to respectively identify the two-dimensional code to be fused and the two-dimensional code to be generated, and identify and obtain identification information of the image to be recognized.

In some embodiments, if the two-dimensional code to be fused is partial information of the two-dimensional code to be generated, when identifying the two-dimensional code to be fused and the two-dimensional code to be generated, the range of the two-dimensional code to be fused can be obtained by A frame is set on the border of the QR code to be fused, and the range of the QR code to be fused is determined by the frame. For example, a border of a preset width is set on the border of the QR code to be fused, and the range enclosed by the border of the preset width is Is the range of the QR code to be fused.

Or, obtain the position information of the two-dimensional code to be fused in the two-dimensional code to be generated, and determine the range of the two-dimensional code to be fused according to the position information. For example, the two-dimensional code to be fused is a square and set in the center of the two-dimensional code to be generated , And its side length is the preset length, the range of the two-dimensional code to be fused is a square frame with the center of the two-dimensional code to be generated as the center point and the side length of the preset length.

It should be noted that the terminal or the application program of the terminal is configured with a QR code recognition algorithm in advance. The QR code recognition algorithm knows in advance the positional relationship between the QR code to be fused and the QR code to be generated. Determine the range of the two-dimensional code to be fused by identifying the frame or shape or other identification information of the two-dimensional code to be fused.

In other embodiments, if the two-dimensional code to be fused is a complete two-dimensional code, the two-dimensional code to be fused and the two-dimensional code to be generated need to be identified separately, and at the same time, according to the two-dimensional code to be fused and the two-dimensional code to be generated The recognition result of, obtain the information of the image to be recognized.

There is another possible implementation manner. If the two-dimensional code to be fused is an invisible two-dimensional code, it needs to be identified by a preset method. For example, the preset image and the two-dimensional code image are first subjected to grayscale processing, and then the preset Set the difference between the image and the two-dimensional code image to obtain the difference image, where the difference between the preset image and the two-dimensional code image is that the two-dimensional code image is added with the two-dimensional code to be fused, in the obtained difference image , The value of the unchanged pixel is 0 after subtraction, that is, black. After the changed pixel is subtracted, the value is not 0, not black. Then the difference image is binarized according to the preset algorithm, and the binarized difference image is obtained. The difference image after the binarization is recognized, and the same data as the two-dimensional code to be fused is obtained.

Among them, the preset algorithm for binarization can be the bimodal method, the P-parameter method and/or the iterative method and the Otsu (OTSU) method, etc., which are not limited here.

Here, taking the identification of the target two-dimensional code on the Qingju shared bicycle as an example, the two-dimensional code to be fused and the two-dimensional code to be generated are respectively identified.

When the target QR code is the identification code of Qingju shared bicycle, the to-be-fused QR code and the icon image of Qingju shared bicycle are fused into a two-dimensional code image. If the to-be-fused two-dimensional code contains part of the information of the two-dimensional code, then Obtain the range of the QR code to be fused according to the preset identification information (the preset identification information includes: the frame of the QR code and/or the position information of the QR code to be fused in the QR code to be generated). If the two-dimensional code is a complete two-dimensional code, the range of the two-dimensional code to be fused can be obtained according to the positioning point of the two-dimensional code to be fused.

Then, according to the range of the two-dimensional code, the two-dimensional code image is obtained, and the two-dimensional code image and the icon image of the green orange shared bicycle are gray-scaled, and the difference image between the two is calculated, and the difference image is calculated according to the preset algorithm Binarization is performed to obtain a difference image after binarization, and the difference image after binarization is the same as the two-dimensional code to be fused.

Finally, according to the range of the two-dimensional code, the same information as the two-dimensional code to be fused can be obtained by identifying the difference image after binarization.

It should be clarified that the method of recognizing the QR code is only an example, not limited to this.

Similarly, take the identification of the target two-dimensional code on the Qingju shared bicycle as an example, and explain the identification information of the image to be identified.

When the target two-dimensional code is the identification code of the green orange shared bicycle, the data in the to-be-fused two-dimensional code can be the verification information of the target two-dimensional code, and the content of the to-be-generated two-dimensional code can be the number of the current shared bicycle, to be identified The identification information of the image is the number of the shared bicycle that has passed the verification. The specific content of the identification information of the image to be recognized is not limited here.

Optionally, the image to be identified further includes: a candidate identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified.

Fig. 6 shows a flowchart of a two-dimensional code recognition method provided by another embodiment of the present application.

As shown in Figure 6, the two-dimensional code recognition algorithm is used to separately identify the two-dimensional code to be fused and the two-dimensional code to be generated. Before obtaining the two-dimensional code information of the target two-dimensional code, it also includes:

S203: Recognizing and acquiring the target two-dimensional code and the candidate identification mark in the image to be recognized.

Among them, the acquired image to be identified may include the target QR code and alternative identification marks. For example, when scanning the two-dimensional code of a shared bicycle, the acquired image to be identified may include the two-dimensional code of the shared bicycle and the two-dimensional code printed on the two-dimensional The number of the shared bicycle around the code. At this time, the range of the shared bicycle QR code is determined according to the positioning point in the shared bicycle’s QR code, and the image within the shared bicycle’s QR code is used as the target QR code, and the shared bicycle Images outside the range of the two-dimensional code (including the image of the shared bicycle number) are used as candidate identification marks, but not limited to this.

Fig. 7 shows a flowchart of a two-dimensional code recognition method provided by another embodiment of the present application.

Optionally, as shown in FIG. 7, the two-dimensional code recognition algorithm is used to separately identify the two-dimensional code to be fused and the two-dimensional code to be generated, and to identify and obtain the identification information of the image to be recognized, including:

S202-1: Using the two-dimensional code recognition algorithm, respectively identify the two-dimensional code to be fused and the two-dimensional code to be generated, and identify and obtain the two-dimensional code information of the image to be recognized.

Wherein, the two-dimensional code to be fused and the two-dimensional code to be generated are respectively identified, and the method of identifying and acquiring the two-dimensional code information of the image to be identified is the same as that in S202, and will not be repeated here.

S202-2: If the two-dimensional code recognition algorithm is used, and the recognition and acquisition of the two-dimensional code information of the image to be recognized fails, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.

In some embodiments, there may be cases where the two-dimensional code to be fused and the two-dimensional code to be generated cannot be identified, for example, the two-dimensional code to be fused and the two-dimensional code to be generated are scratched, partly lost and/or contaminated, etc. Then, the corresponding algorithm can be selected according to the above-mentioned candidate identification mark to identify and obtain the candidate identification mark.

For example, in the example in S203, the image outside the range of the two-dimensional code of the shared bicycle (including the image of the number of the shared bicycle) is used as the candidate identification identifier. Then select the corresponding algorithm according to the candidate identification (number) that needs to be recognized, such as the optical character recognition (Optical Character Recognition, OCR) algorithm, and identify the candidate identification information in the image outside the QR code of the shared bicycle through OCR , Which is the number of the shared bicycle. After using the corresponding algorithm to identify the candidate identification mark, the information of the identified candidate identification mark is used as the target two-dimensional code information.

Optionally, if the two-dimensional code recognition algorithm is used to successfully identify and obtain the two-dimensional code information of the image to be recognized, the information of the candidate identification mark can also be recognized, and then the two information can be compared and verified to improve the accuracy of the recognition result Sex.

For example, when the candidate identification is configured as an identification number, it can be a purely numeric string or a string of numbers and letters. When the candidate identification is configured to identify a network address and/or link, it can be a number or letter. And/or a mixed character string.

In another possible implementation, the candidate identification can also be composed of one or a segment of non-letter languages such as Chinese characters, Japanese, Korean, and/or Arabic. In this case, an algorithm that matches the corresponding language can be selected for identification. Get the information of the candidate identification. There is no restriction on the composition of the alternative identification mark.

FIG. 8 shows a schematic structural diagram of a two-dimensional code generating apparatus provided by an embodiment of the present application.

As shown in Figure 8, the present application provides a QR code generation device, including:

The obtaining module 301 is configured to add a two-dimensional code to be fused on a preset image to obtain a two-dimensional code image. The generating module 302 is configured to generate the target two-dimensional code according to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated.

Optionally, the acquiring module 301 is specifically configured to use the adjusted QR code to be fused as a coating of the preset image to obtain the QR code image, wherein the color of each pixel in the coating is in accordance with the preset coating The rule matches the color of the pixel at the corresponding position of the original coating of the preset image.

Optionally, the acquiring module 301 is specifically configured to use the two-dimensional code to be fused as a coating of the preset image to acquire the two-dimensional code image, wherein the color of each pixel in the coating corresponds to the pixel of the original coating Information matches.

FIG. 9 shows a schematic structural diagram of a two-dimensional code generating apparatus provided by another embodiment of the present application.

Optionally, as shown in FIG. 9, an extraction module 303 is further included, configured to obtain the two-dimensional code to be generated according to the original two-dimensional code and extract the two-dimensional code to be fused, wherein the two-dimensional code to be generated includes a preset shape Fusion area.

Optionally, the generating module 301 is specifically configured to convert the two-dimensional code image into a shape matching the region to be fused to obtain the target two-dimensional code image. The target two-dimensional code image is fused to the to-be-fused area of the two-dimensional code to be generated to generate the target two-dimensional code.

FIG. 10 shows a schematic structural diagram of a two-dimensional code recognition device provided by an embodiment of the present application.

As shown in Figure 10, this application also provides a two-dimensional code recognition device, including:

The acquiring module 401 is configured to collect and acquire an image to be recognized, the image to be recognized includes a target two-dimensional code, and the target two-dimensional code is generated according to a preset fusion rule, a two-dimensional code image, and/or a two-dimensional code to be generated, wherein the two-dimensional code The image is obtained by fusion of the preset image and the two-dimensional code to be fused. The recognition module 402 is configured to use a two-dimensional code recognition algorithm to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and to recognize and obtain the identification information of the image to be recognized.

Optionally, the image to be identified further includes: a candidate identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified. The recognition module 402 is further configured to recognize and acquire the target two-dimensional code and the candidate recognition identifier in the image to be recognized.

Optionally, the recognition module 402 is specifically configured to use a two-dimensional code recognition algorithm to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and to recognize and obtain the two-dimensional code information of the image to be recognized. Alternatively, if the two-dimensional code recognition algorithm is used to identify and obtain the two-dimensional code information of the image to be recognized, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.

In addition, the aforementioned modules may be connected or communicate with each other via a wired connection or a wireless connection. Wired connections may include metal cables, optical cables, and/or hybrid cables, etc., or any combination thereof. The wireless connection can include connections via local area network (LAN), wide area network (Wide Area Network, WAN), Bluetooth, ZigBee protocol (ZigBee) and/or near field communication (NFC), or Any combination of it. Two or more modules can be combined into a single module, and any one module can be divided into two or more units.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, the specific working process of the device described above can refer to the corresponding process in the method embodiment, which will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of modules is only a logical function division, and there may be other divisions in actual implementation. For example, multiple modules or components may be combined or integrated. To another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some communication interfaces, devices or modules, and may be in electrical, mechanical or other forms.

The modules described above as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

On the other hand, FIG. 11 shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

This application provides an electronic device, as shown in FIG. 11, comprising: a processor 501, a computer-readable storage medium 502, and a bus 503. The computer-readable storage medium 502 stores machine-readable instructions executable by the processor 501, When the electronic device is running, the processor 501 and the computer-readable storage medium 502 communicate through the bus 503, and the processor 501 executes machine-readable instructions to execute the steps of the above-mentioned two-dimensional code generation method.

For example only, the processor 501 includes a central processing unit (Central Processing Unit, CPU), an Application Specific Integrated Circuit (ASIC), a dedicated instruction set processor (Application Specific Instruction-set Processor, ASIP), and a graphics processing unit. (Graphics Processing Unit, GPU), Physical Processing Unit (Physics Processing Unit, PPU), Digital Signal Processor (Digital Signal Processor, DSP), Field Programmable Gate Array (Field Programmable Gate Array, FPGA), Programmable Logic Device ( Programmable Logic Device (PLD), controller, microcontroller unit, Reduced Instruction Set Computing (RISC) and/or microprocessor, etc., or any combination thereof.

The electronic device may be a mobile phone, a tablet computer, a wearable device, and/or a computer, but is not limited to this.

All of the above electronic devices can be configured to implement the QR code generation method of this application. Although only one electronic device is shown in this application, the functions described in this application can be implemented in a distributed manner on multiple electronic devices, for example, the first electronic device obtains a QR code image and sends the QR code image To the second device, the target two-dimensional code is generated on the second electronic device.

For ease of description, only one processor 501 is described in the electronic device. However, it should be noted that the electronic device in this application may also include multiple processors 501, so the steps performed by one processor 501 described in this application may also be executed by multiple processors 501 jointly or individually.

This application also provides another electronic device, as shown in FIG. 11, including: a processor 501, a computer-readable storage medium 502, and a bus 503. The computer-readable storage medium 502 stores a machine readable executable by the processor 501 When the electronic device is running, the processor 501 communicates with the computer-readable storage medium 502 through the bus 503, and the processor 501 executes the machine-readable instruction to execute the steps of the above-mentioned two-dimensional code recognition method.

For example only, the processor 501 includes CPU, ASIC, ASIP, GPU, PPU, DSP, FPGA, PLD, controller, microcontroller unit, RISC and/or microprocessor, etc., or any combination thereof.

The electronic device can be a mobile phone, a tablet computer, a wearable device, a computer with a QR code scanning and/or recognition function, but not limited to this.

All of the above electronic devices can be configured to implement the two-dimensional code recognition method of this application. Although this application only shows one electronic device, the functions described in this application can be implemented on multiple electronic devices in a distributed manner. For example, the first electronic device scans a QR code and sends the QR code to the first electronic device. The second device recognizes the QR code on the second electronic device.

The present application also provides a computer-readable storage medium with a computer program stored on the computer-readable storage medium. The computer program executes the steps of the above-mentioned two-dimensional code generation method or the two-dimensional code recognition method when the computer program is run by a processor .

The computer-readable storage medium includes mass memory, removable memory, volatile read-write memory and/or read-only memory (Read-Only Memory, ROM), etc., or any combination thereof. As an example, mass storage may include magnetic disks, optical disks, and/or solid-state drives, etc.; removable storage may include flash drives, floppy disks, optical disks, memory cards, zip disks and/or tapes, etc.; volatile read-write memory May include Random Access Memory (RAM); RAM may include Dynamic RAM (Dynamic Random Access Memory, DRAM), Double Date-Rate Synchronous RAM (DDR SDRAM); Static RAM ( Static Random-Access Memory, SRAM), Thyristor-Based Random Access Memory (T-RAM) and Zero-Capacitor RAM (Zero-RAM), etc. As an example, ROM may include mask ROM (Mask Read-Only Memory, MROM), programmable ROM (Programmable Read-Only Memory, PROM), erasable programmable ROM (Programmable Read-only Memory, PEROM), electronic Erasable programmable ROM (Electrically Erasable Programmable read only memory, EEPROM), compact disc ROM (CD-ROM) and/or digital universal disk ROM, etc., or any combination thereof.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and they should all be covered Within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for generating a two-dimensional code, characterized in that it comprises:

On the preset image, add a QR code to be fused to obtain a QR code image;

According to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated, the target two-dimensional code is generated.
The method according to claim 1, wherein the adding a two-dimensional code to be fused to a preset image to obtain a two-dimensional code image comprises:

Adjusting the pixel color of the two-dimensional code to be fused to obtain the adjusted two-dimensional code to be fused;

Superimposing the adjusted two-dimensional code to be fused with the preset image to obtain the two-dimensional code image.
The method of claim 2, wherein the superimposing the adjusted two-dimensional code to be fused with the preset image to obtain the two-dimensional code image comprises:

The adjusted two-dimensional code to be fused is used as a coating of the preset image to obtain the two-dimensional code image, wherein the color of each pixel in the coating is consistent with the preset coating rules. The color matching of pixels at corresponding positions of the original coating of the preset image.
The method according to claim 1, wherein the adding a two-dimensional code to be fused on the preset image, and before acquiring the two-dimensional code image, further comprises:

Obtain the two-dimensional code to be generated according to the original two-dimensional code and extract the two-dimensional code to be fused, wherein the two-dimensional code to be generated includes a region to be fused with a preset shape.
The method according to claim 4, wherein said generating a target two-dimensional code according to preset fusion rules, said two-dimensional code image and/or to-be-generated two-dimensional code, comprises:

Converting the two-dimensional code image into a shape matching the region to be fused to obtain a target two-dimensional code image;

The target two-dimensional code image is fused to the to-be-fused area of the two-dimensional code to be generated to generate a target two-dimensional code.
A two-dimensional code recognition method, which is characterized in that it comprises:

The image to be recognized is acquired, the image to be recognized includes a target two-dimensional code, and the target two-dimensional code is generated according to preset fusion rules, a two-dimensional code image, and/or a two-dimensional code to be generated, wherein the two-dimensional code The image is obtained by fusion of the preset image and the QR code to be fused;

The two-dimensional code recognition algorithm is used to identify the two-dimensional code to be fused and the two-dimensional code to be generated, and the identification information of the image to be recognized is recognized and acquired.
8. The method of claim 6, wherein the image to be recognized further comprises: an alternative identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified;

Said using a two-dimensional code recognition algorithm to respectively identify the two-dimensional code to be fused and the two-dimensional code to be generated, and before acquiring the two-dimensional code information of the target two-dimensional code, further includes:

Recognizing and acquiring the target two-dimensional code and the candidate identification identifier in the image to be recognized.
The method according to claim 7, wherein the two-dimensional code recognition algorithm is used to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and the identification information of the image to be recognized is obtained by recognition ,include:

The two-dimensional code recognition algorithm is used to identify the two-dimensional code to be fused and the two-dimensional code to be generated respectively, and to recognize and obtain the two-dimensional code information of the image to be recognized; or,

If the two-dimensional code recognition algorithm is used to identify and obtain the two-dimensional code information of the image to be recognized fails, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.
The method according to claim 7, wherein the candidate identification identifier is a character string or an identification code, wherein the character string includes a combination of one or more of the following characters: numbers, letters, and symbols.
A two-dimensional code generating device, characterized by comprising:

The acquisition module is configured to add a QR code to be fused on the preset image to obtain a QR code image;

The generating module is configured to generate the target two-dimensional code according to the preset fusion rule, the two-dimensional code image and/or the two-dimensional code to be generated.
The device according to claim 10, wherein the acquiring module is specifically configured to adjust the color of the pixels of the two-dimensional code to be fused to obtain the adjusted two-dimensional code to be fused;

Superimposing the adjusted two-dimensional code to be fused with the preset image to obtain the two-dimensional code image.
The device of claim 11, wherein the acquiring module is specifically configured to use the adjusted QR code to be fused as a coating of the preset image to acquire the two-dimensional code image , Wherein the color of each pixel in the coating is matched with the color of the pixel at the corresponding position of the original coating of the preset image according to a preset coating rule.
The device of claim 10, further comprising an extraction module configured to obtain the two-dimensional code to be generated according to the original two-dimensional code and extract the two-dimensional code to be fused, wherein the two-dimensional code to be generated is The code includes a region to be blended in a preset shape.
The device according to claim 13, wherein the generating module is specifically configured to convert the two-dimensional code image into a shape matching the region to be fused to obtain a target two-dimensional code image;

The target two-dimensional code image is fused to the to-be-fused area of the two-dimensional code to be generated to generate a target two-dimensional code.
A two-dimensional code recognition device, characterized in that it comprises:

The acquisition module is configured to collect and acquire an image to be recognized, the image to be recognized includes a target two-dimensional code, and the target two-dimensional code is generated according to a preset fusion rule, a two-dimensional code image, and/or a two-dimensional code to be generated, wherein, The two-dimensional code image is obtained by fusion of a preset image and a two-dimensional code to be fused;

The recognition module is configured to use a two-dimensional code recognition algorithm to respectively recognize the two-dimensional code to be fused and the two-dimensional code to be generated, and to recognize and obtain the identification information of the image to be recognized.
The device according to claim 15, wherein the image to be recognized further comprises: a candidate identification mark, and both the candidate identification mark and the target two-dimensional code indicate identification information of the image to be identified;

The recognition module is further configured to recognize and obtain the target two-dimensional code and the candidate recognition identifier in the image to be recognized.
The device according to claim 16, wherein the identification module is specifically configured to use the two-dimensional code identification algorithm to identify the two-dimensional code to be fused and the two-dimensional code to be generated, respectively, and obtain The two-dimensional code information of the image to be recognized; or,

If the two-dimensional code recognition algorithm is used to identify and obtain the two-dimensional code information of the image to be recognized fails, the algorithm corresponding to the candidate identification mark is used to identify and obtain the candidate identification mark.
The device according to claim 17, wherein the candidate identification identifier is a character string or an identification code, wherein the character string includes a combination of one or more of the following characters: numbers, letters, and symbols.
An electronic device, characterized by comprising: a processor, a storage medium and a bus. The storage medium stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the bus The storage media communicate through a bus, and the processor executes the machine-readable instructions to execute the QR code generation method according to any one of claims 1-5 or any one of claims 6-9 when executed. The two-dimensional code recognition method described in item.
A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and the computer program is executed when a processor is running to execute as described in any one of claims 1-5 when executed. The steps of the two-dimensional code generation method or the two-dimensional code recognition method according to any one of claims 6-9.