WO2018210077A1 - Method and apparatus for generating identification code - Google Patents

Abstract

A method and apparatus for generating an identification code. The method comprises: generating a grid matrix (GM) two-dimensional code according to preset information to be encoded (101); and cropping the code pattern of the GM two-dimensional code according to a preset logo shape to generate an identification code matching the logo shape (102), wherein the ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value. The identification code generated by the method allows the logo to be visually seen, and thus, user experience is improved.

Description

Method and device for generating identification code Technical field

The present invention relates to the field of Internet technologies, and in particular, to a method and an apparatus for generating an identification code.

Background technique

The two-dimensional code technology is a new technology for recording data symbol information by using geometrically arranged geometric shapes in a two-dimensional direction, and the automatic reading of the two-dimensional code carrying information can be completed by the image input device or the photoelectric scanning device, especially now With the increasing popularity of smart terminals, the use of QR code scanning to obtain product information, mobile payment, anti-counterfeiting and traceability has become a choice for many consumers.

However, a general two-dimensional code has a fixed pattern mode around it for detecting a barcode, such as three "back" regions of a Quick Response (QR) code, and a Data Matrix (DM) code. The "L" edge, etc., these graphics patterns are defaced and will result in unrepeatable. Therefore, the logo of the general enterprise is embedded in a small part of the middle of the two-dimensional code, and the form is very single, which cannot meet the customization requirements of the user.

Summary of the invention

The invention provides a method and a device for generating an identification code, so as to solve the problem that the existing graphic logos are embedded in a small part of the middle of the two-dimensional code, and the form is very single, which cannot meet the requirements of the personalized customization of the user.

In a first aspect, an embodiment of the present invention provides a method for generating an identification code, including:

Generating a grid matrix GM two-dimensional code according to preset information to be encoded;

And cutting a code pattern of the GM two-dimensional code according to a shape of a preset identifier logo, and generating an identifier that matches a shape of the logo;

The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value.

In a second aspect, an embodiment of the present invention provides an apparatus for generating an identification code, including:

a generating module, configured to generate a grid matrix GM two-dimensional code according to preset information to be encoded;

a processing module, configured to: cut a code pattern of the GM two-dimensional code according to a shape of a preset identifier logo, and generate an identifier that matches a shape of the logo;

The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value.

The method and device for generating an identification code according to an embodiment of the present invention generates a grid matrix GM two-dimensional code according to a preset information to be encoded, and further, according to a shape of a preset identifier logo, a code of the GM two-dimensional code The figure is cropped to generate an identification code that matches the shape of the logo, that is, the user can generate an identification code according to the logo shape, and the logo shape can be visually seen according to the identification code, which greatly improves the user experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of an embodiment of a method for generating an identification code according to the present invention;

2a is a schematic diagram 1 of an identification code of an embodiment of a method for generating an identification code according to the present invention;

2b is a second schematic diagram of an identification code of an embodiment of a method for generating an identification code according to the present invention;

2c is a third schematic diagram of an identification code of an embodiment of a method for generating an identification code according to the present invention;

2d is a fourth schematic diagram of an identification code of an embodiment of a method for generating an identification code according to the present invention;

3 is a flowchart of another embodiment of a method for generating an identification code according to the present invention;

4 is a flowchart of still another embodiment of a method for generating an identification code according to the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of an apparatus for generating an identification code according to the present invention; FIG.

FIG. 6 is a schematic structural diagram of an embodiment of an apparatus for generating an identification code according to the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "comprises" and "comprising", and any variants thereof, are intended to cover a non-exclusive inclusion, such as a process or method comprising a series of steps or units. The system, product, or device is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not explicitly listed or inherent to such processes, methods, products, or devices.

The method for generating the identification code provided by the embodiment of the present invention satisfies the personalized customization requirement of the user, and improves the user experience. Hereinafter, the technical solutions of the present application will be described in detail through specific embodiments.

It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 1 is a flowchart of an embodiment of a method for generating an identification code according to the present invention, which may be performed by an apparatus for generating an identification code. As shown in FIG. 1, the method for generating the identification code may include:

Step 101: Generate a grid matrix GM two-dimensional code according to preset information to be encoded.

Step 102: According to the shape of the preset logo, the code map of the GM two-dimensional code is cropped to generate an identifier that matches the shape of the logo.

The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value.

Specifically, the Grid Matrix (GM) two-dimensional code is generated according to the preset information to be encoded, such as the identification information of the user, for example, the name of the enterprise, the logo of the enterprise, the contact information, and the enterprise address.

Then, according to the shape of the preset graphic logo, the code pattern of the GM two-dimensional code is cropped to generate an identification code that matches the shape of the logo.

Exemplarily, as shown in FIG. 2a, the logo shape is, for example, a "field" font, and after the code pattern of the GM two-dimensional code is cropped, the code pattern of the generated identification code matches the logo shape.

As shown in FIG. 2b, if the logo shape is, for example, a "work" font, after the code pattern of the GM two-dimensional code is cropped, the code pattern of the generated identification code matches the logo shape.

As shown in FIG. 2c, if the logo shape is, for example, a "middle" font, after the code pattern of the GM two-dimensional code is cropped, the code pattern of the generated identification code matches the logo shape.

As shown in FIG. 2d, if the logo shape is, for example, a "national" font, after the code map of the GM two-dimensional code is cropped, the code pattern of the generated identification code matches the logo shape.

The above GM two-dimensional code is generated as follows:

a data code word generating step: generating a coded binary number by using preset information to be encoded, and dividing the encoded binary number into a data code word having a specific binary bit length;

An error correction code word generating step: generating an error correction code word by using an RS error correction algorithm on the data code word;

The code frame main frame generating step: generating a main frame of the code image, that is, generating a frame portion and a layer number bit of each macro module, wherein the frame portion is distributed in the outermost week of the macro module, and the layer number bits are distributed in the frame portion The four corners are stored with layer number information, and the other part of the macro module is a code word storage part;

Codeword filling to form a code map image step: generating a code map according to a code word storage portion of each macroblock in the code pattern by filling the data code word and the error correction code word in a clockwise or counterclockwise spiral manner from the center outward The image file, the order in which the macro modules are arranged in the code image is also the order in which the code words are stored.

The unit module in the code map is divided into a plurality of rectangular macro modules, and the macro module includes Num×Num unit modules, where Num is a natural number greater than 3, and each macro module includes storing data with a fixed data length. A unit module of a code word and a unit module that stores a cluster number representing a position of the macro module in the code map.

Decoding method:

Reducing the code map to a binary data stream by a digital camera and a computer includes the following steps: I. acquiring a gray scale digital image of a pixel matrix of a code map including gray values of each pixel by photographing; II. The distribution of the gray values of different pixels in the digital image is counted, and the grayscale image is converted into a binary image according to the statistical value selection threshold; III. detecting each light color pixel in the binary image, if with it One or more of the nearest four pixels of the top, bottom, left, and right pixels are marked as boundary pixels to obtain a boundary image; detecting a straight line in the boundary image to obtain a line equation and solving the line equation to obtain each The four-corner coordinates of the macro modules; IV. calculating the coordinates of each unit module in the macro module according to the quadrilateral coordinate interpolation of each macro module; V. reading the coordinates of the unit module to the digital signal of the binary image The bit value of 0 or 1 stored in the unit module obtains a code word matrix; VI. The direction of the code word matrix is determined by the following steps: A, respectively, for the above data matrix Obtain each possible cluster number of each macro module in four different directions according to the position and unit of the known cluster number module; B. Calculate the possible cluster number of each macro module and each of them separately for each direction The absolute value of the difference between the adjacent possible right and left adjacent macroblocks, and the resulting absolute value is added as the score of the direction; C, the scores in the four directions are compared, and the direction with the least score is the code map. The correct direction; VII. Determine the central codeword according to the symmetric relationship of the codeword matrix; VIII. According to the correct direction and the central codeword, recover the data codeword matrix from the central codeword in a clockwise direction to the data code Word sequence.

The above decoding method only needs to ensure that the ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to the preset value, so that the GM two-dimensional code information can be correctly decoded.

The preset value may be determined according to actual conditions, and the present invention is not limited thereto.

This preset value is, for example, 0.6.

The method for generating the identification code provided by the embodiment of the present invention generates a grid matrix GM two-dimensional code according to the preset information to be encoded, and further, according to the shape of the preset logo, the code pattern of the GM two-dimensional code is performed. Cropping, generating an identification code that matches the shape of the logo, that is, the user can generate an identification code according to the logo shape, and the logo shape can be visually seen according to the identification code, which greatly improves the user experience.

FIG. 3 is a flowchart of another embodiment of a method for generating an identification code according to the present invention. On the basis of the corresponding embodiment of FIG. 1, further, as shown in FIG. 3, step 102 can be specifically implemented by the following steps:

Step 1021: Draw a crop shape on the code map of the GM two-dimensional code according to the shape of the logo;

Step 1022: Perform a cropping of the code pattern of the GM two-dimensional code according to the cropped shape to generate an identification code that matches the shape of the logo.

Specifically, according to the shape of the logo, the crop shape is drawn on the code map of the GM two-dimensional code; that is, the crop shape matching the logo shape is drawn on the code map of the GM two-dimensional code according to the shape of the logo.

Then, the code image of the GM two-dimensional code is cropped according to the drawn crop shape, and the coded image after the cropping is the code pattern of the generated identification code, and the code map matches the shape of the logo.

4 is a flow chart of still another embodiment of a method for generating an identification code according to the present invention. On the basis of the corresponding embodiment of FIG. 3, further, as shown in FIG. 4, step 1021 can be specifically implemented by the following steps:

Step 1021a, according to the shape of the logo, draw a cropping trajectory on the code map of the GM two-dimensional code;

Step 1021b, the closed area formed by the cropping track is taken as a cropped shape.

Specifically, according to the shape of the logo, the cropped shape is drawn on the code map of the GM two-dimensional code, which can be implemented as follows:

First, according to the shape of the logo, the cropping trajectory is drawn on the code map of the GM two-dimensional code. As shown in FIG. 2b, the cropping trajectory is drawn according to the edge of the I-shaped shape, and then the closed region formed by the cropping trajectory is taken as the cropping shape.

Based on the above embodiment, further, the code pattern of the identification code is a continuous graphic.

Specifically, in order to restore all the two-dimensional code information more accurately, it is necessary to ensure that the code pattern of the identification code generated after the cropping is a continuous graphic.

FIG. 5 is a schematic structural diagram of an apparatus for generating an identification code according to an embodiment of the present invention. As shown in FIG. 5, the apparatus for generating the identification code may include:

Generating module 501 and processing module 502;

The generating module 501 is configured to generate a grid matrix GM two-dimensional code according to preset information to be encoded;

The processing module 502 is configured to: cut a code image of the GM two-dimensional code according to a shape of the preset identifier logo, and generate an identifier that matches a shape of the logo.

The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value.

Optionally, the processing module 502 is specifically configured to:

Drawing a crop shape on a code map of the GM two-dimensional code according to a shape of the logo;

The code pattern of the GM two-dimensional code is cropped according to the cropped shape, and an identification code matching the shape of the logo is generated.

Optionally, the processing module 502 is specifically configured to:

Drawing a cropping trajectory on the code map of the GM two-dimensional code according to the shape of the logo;

A closed area formed by the cutting trajectory is used as the cut shape.

Optionally, a ratio of an area of the code pattern of the identification code to an area of the GM two-dimensional code is greater than or equal to a preset value.

Optionally, the code pattern of the identification code is a continuous graphic.

The device for generating the identification code shown in the embodiment of the present invention may perform the technical solution shown in the foregoing method embodiment, and the implementation principle and the beneficial effects are similar, and details are not described herein.

FIG. 6 is a structural diagram of an apparatus for generating an identification code according to the present invention. As shown in FIG. 6, the apparatus for generating the identification code includes:

A processor 601, and a memory 602 for storing executable instructions of the processor 601.

The processor 601 is used to invoke the executable instruction to perform the corresponding method in the foregoing method embodiment. For the specific implementation process, refer to the foregoing method embodiment, and details are not described herein again.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (8)

A method for generating an identification code, comprising: Generating a grid matrix GM two-dimensional code according to preset information to be encoded; And cutting a code pattern of the GM two-dimensional code according to a shape of a preset identifier logo, and generating an identifier that matches a shape of the logo; The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value. The method according to claim 1, wherein the code pattern of the GM two-dimensional code is cropped according to a shape of a preset logo, and an identifier matching the shape of the logo is generated, specifically include: Drawing a crop shape on a code map of the GM two-dimensional code according to a shape of the logo; The code pattern of the GM two-dimensional code is cropped according to the cropped shape, and an identification code matching the shape of the logo is generated. The method according to claim 2, wherein the cropping shape is drawn on the code map of the GM two-dimensional code according to the shape of the logo, specifically comprising: Drawing a cropping trajectory on the code map of the GM two-dimensional code according to the shape of the logo; A closed area formed by the cutting trajectory is used as the cut shape. A method according to any one of claims 1 to 3, characterized in that The code pattern of the identification code is a continuous graphic. An apparatus for generating an identification code, comprising: a generating module, configured to generate a grid matrix GM two-dimensional code according to preset information to be encoded; a processing module, configured to: cut a code pattern of the GM two-dimensional code according to a shape of a preset identifier logo, and generate an identifier that matches a shape of the logo; The ratio of the area of the code pattern of the identification code to the area of the GM two-dimensional code is greater than or equal to a preset value. The device according to claim 5, wherein the processing module is specifically configured to: Drawing a crop shape on a code map of the GM two-dimensional code according to a shape of the logo; The code pattern of the GM two-dimensional code is cropped according to the cropped shape, and an identification code matching the shape of the logo is generated. The device according to claim 6, wherein the processing module is specifically configured to: Drawing a cropping trajectory on the code map of the GM two-dimensional code according to the shape of the logo; A closed area formed by the cutting trajectory is used as the cut shape. Device according to any of claims 5-7, characterized in that The code pattern of the identification code is a continuous graphic.

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