CN116187374A

CN116187374A - Graphic code label and identification method, system and readable storage medium thereof

Info

Publication number: CN116187374A
Application number: CN202310133182.9A
Authority: CN
Inventors: 杜绍波; 林大斌; 杜克强; 高蓓蓓; 杜彦平
Original assignee: Sanmenxia Yunshuo Intelligent Technology Co ltd
Current assignee: Sanmenxia Yunshuo Intelligent Technology Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-05-30

Abstract

The invention discloses a graphic code label, an identification method and system thereof and a readable storage medium. The graphic code label comprises a plurality of array blocks and sub-labels; the array blocks are arranged in an array shape, and the sub-labels are arranged in the array blocks; the array blocks and/or the sub-labels are provided with ground colors, the sub-labels represent segmentation information, and the character serial numbers are formed after sequential combination. The identification method comprises the following steps: acquiring an image of a graphic code label; based on the shape of the array block, performing deformation correction; obtaining segmentation information represented by each sub-label; and (5) performing permutation and combination to obtain the character serial number. The graphic code label provided by the invention has the advantages that the character serial numbers are segmented into a plurality of sub-labels and are arranged in the array block in an array manner, so that a large amount of sequence information can be integrated in the label with smaller size; when the label is identified, the quick capturing and identification can be carried out based on the ground color, and meanwhile, the image can be corrected based on the deformation of the image, so that the efficiency and the accuracy of the label identification are improved.

Description

Graphic code label and identification method, system and readable storage medium thereof

Technical Field

The present invention relates to the field of article identification technologies, and in particular, to a graphic code label, and an identification method, a system and a readable storage medium thereof.

Background

Along with the update of technology, the development of society and the technical application of the Internet of things, the demands on the Internet of things are higher and higher, particularly the fields of modern storage and logistics, each article is gradually required to have a unique identity card, so that the requirements on accurate and efficient identification and recognition of the identity of the article are higher and higher,

the main stream labels in the current market are printed bar code labels, two-dimensional code labels, sticking bar code labels and the like, and the height of the labels required when the number of the marks of the traditional labels exceeds 24 bits is very high, so that the surface sticking of an article is not facilitated, and particularly under the conditions that the article is very small and the label is large, the proper sticking surface is very difficult to find.

In addition, the tag is often failed to identify or inaccurate to identify due to the unevenness of the surface of the article, for example, a two-dimensional code tag, and for real objects in many scenes, the two-dimensional code tag is usually not generally stuck on the whole, particularly for round/spherical articles (such as helmets, helmets and the like), and the tag surface cannot identify or identify for too long or wrong identity information due to deformation.

Therefore, a graphic code label for identifying identity information of an article and an identification method thereof are urgently needed in the market, massive information can be identified in a smaller size range, and the graphic code label has higher adaptability to the unevenness of the surface of the article and is used for filling accurate and efficient market demands in the application scene of the Internet of things.

Disclosure of Invention

In view of the shortcomings of the prior art, the invention aims to provide a graphic code label, an identification method, a system and a readable storage medium thereof.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention comprises the following steps:

in a first aspect, the present invention provides a graphic code label comprising a plurality of array blocks and sub-labels;

the plurality of array blocks are arranged on the surface of the graphic code label in an array mode, and the sub-labels are arranged in the array blocks;

wherein the sub-label is formed by arranging a plurality of graph blocks, and the graph blocks have different shapes and/or colors;

the combination of the shape and the color of the graphic block represents segment information, and a plurality of segment information are sequentially combined to form a character serial number.

In some preferred embodiments, the array block is provided with a base color, the graphics block is of a different color than the array block, and the sub-label and/or array block has a plurality of colors.

In some preferred embodiments, the base colors of adjacent ones of the array blocks are not the same.

In some preferred embodiments, the base color of any two of the array blocks is not the same.

In some preferred embodiments, a plurality of the array blocks are distributed in a rectilinear grid.

In a second aspect, the present invention further provides a method for identifying the graphic code label, which includes:

1) Acquiring an image of a graphic code label;

2) Correcting deformation of the image of the graphic code label based on the boundary shape of the array block and/or the distribution shape of the graphic block in the image of the graphic code label;

3) Obtaining segmentation information represented by each graphic block;

4) And arranging and combining the segmentation information according to the corresponding order to obtain the character serial number.

In some preferred embodiments, dividing lines of a plurality of array blocks in the image or distribution positions of a plurality of the graphic blocks are identified, and a calibration dividing grid is obtained; comparing the calibration demarcation grid with a standard demarcation grid to obtain distortion information of the image, wherein the standard demarcation grid is a grid shape when the graphic code label is arranged on a plane; and carrying out deformation correction based on the distortion information.

Further, the dividing line is obtained by identification according to the base color difference of the plurality of array blocks.

In a third aspect, the present invention also provides a system for identifying a graphic code label, which includes:

the image acquisition module is used for acquiring the image of the graphic code label;

the deformation correction module is used for correcting the deformation of the image of the graphic code label based on the boundary shape of the array block and/or the distribution shape of the graphic block in the image of the graphic code label;

the segmentation information module is used for acquiring segmentation information represented by each graphic block;

and the arrangement and combination module is used for arranging and combining the segmentation information according to the corresponding order to obtain the character serial number.

In a fourth aspect, the present invention also provides a readable storage medium having stored therein a computer program which when executed performs the steps of the above-described identification method.

Based on the technical scheme, compared with the prior art, the invention has the beneficial effects that:

the graphic code label provided by the invention segments the represented character serial numbers to form a plurality of sub-labels, and the sub-labels are arranged in the array blocks arranged in an array, so that a large amount of sequence information can be integrated in the labels with smaller sizes; when the label is identified, the quick capturing and identification can be carried out based on the ground color, and meanwhile, the sub-label image in the array block can be corrected based on the image deformation of the array block, so that the label identification efficiency and accuracy are improved.

The above description is only an overview of the technical solutions of the present invention, and in order to enable those skilled in the art to more clearly understand the technical means of the present application, the present invention may be implemented according to the content of the specification, the following description is given of the preferred embodiments of the present invention with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a graphic code label according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic diagram of an image correction process for graphic code labels according to an exemplary embodiment of the present invention;

FIG. 3 is a schematic diagram of a graphic code label according to another exemplary embodiment of the present invention;

FIG. 4 is a schematic diagram of a graphic code label according to another exemplary embodiment of the present invention;

fig. 5 is a schematic diagram of a pattern structure of a graphic code label according to another exemplary embodiment of the present invention.

Reference numerals illustrate: 1. a graphic code label; 2. an array block; 3. sub-tags; 4. a dividing line; 5. a standard demarcation grid; 6. calibrating the demarcation grid.

Detailed Description

In view of the shortcomings in the prior art, the inventor of the present invention has long studied and practiced in a large number of ways to propose the technical scheme of the present invention. The technical scheme, the implementation process, the principle and the like are further explained as follows.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1, a graphic code label 1 provided in a first aspect of an embodiment of the present invention includes a plurality of array blocks 2 and a sub-label 3; the plurality of array blocks 2 are arranged on the surface of the graphic code label 1 in an array shape, and the sub-labels 3 are arranged in the array blocks 2; wherein the sub-label 3 is formed by arranging a plurality of graphic blocks, and the graphic blocks have different shapes and/or colors; the combination of the shape and the color of the graphic block represents segment information, and a plurality of segment information are sequentially combined to form a character serial number. The character serial number may be used to represent the identity of the item or other information, etc.

As some typical application examples of the above technical solutions, the graphic code label 1 is formed by filling a plurality of image blocks with different shapes or colors to form a representation of a section of characters, and as the sub-label 3, the graphic code label can be adhered to the surface of an article, and one sub-label 3 is used for identifying a section of numerical value, and the numerical value is combined to represent the identity of the article.

Specifically, a plurality of image blocks may be sequentially arranged along a straight line to form a section of identification code as the sub-tag 3. A plurality of identification code matrices are arranged to form an article identification tag, forming the graphic code tag 1.

The graphic code label 1 is adhered to the surface of an article, is particularly suitable for being adhered to a non-planar article label and is used for identifying the identity card information of the article. The method has the advantages of small size, high recognition efficiency and high accuracy.

In some embodiments, the array block 2 is provided with a base color, the graphic block is different from the color of the array block 2, and the color of the sub-label 3 and/or the array block 2 has a plurality of colors.

In some embodiments, the base colors of adjacent array blocks 2 are not the same.

In some embodiments, the base color of any two of the array blocks 2 is not the same.

The purpose of the above arrangement is to make the demarcation between adjacent array blocks 2 more remarkable, and at the same time, can also provide more remarkable color guidance for subsequent image capturing, thereby helping to improve the efficiency and accuracy of image recognition.

In some embodiments, as shown in fig. 1-2, a plurality of the array blocks 2 are distributed in a rectilinear grid.

In some embodiments, the sub-label 3 may be formed by a plurality of graphic blocks arranged and may be arranged in a straight line.

In some embodiments, the fill color and/or shape of a plurality of the graphics blocks may be different.

In some embodiments, the sub-label 3 may optionally further comprise a two-dimensional code and/or a bar code.

Referring to fig. 2, a method for identifying the graphic code tag 1 according to a second aspect of the embodiment of the present invention includes the following steps:

1) Acquiring an image of a graphic code label 1;

2) Correcting deformation of the image of the graphic code label 1 based on the boundary shape of the array block 2 and/or the distribution shape of the graphic blocks in the image of the graphic code label 1;

3) Obtaining segmentation information represented by each graphic block;

As some typical application examples of the above technical solutions, the above identification method may be implemented by the following steps:

s1, after the camera shoots the surface illumination of the object, the graphic code label 1 can be captured according to the base color of the label.

S2, the system software firstly distinguishes the label direction according to the characteristic value of the graphic code in the sub-label 3, and then corrects the image.

S3, the system software calculates the representative value of the graph according to the characteristic value of the graph and the corresponding value of the filling color inside the graph.

S4, arranging the plurality of graph representative values in sequence.

Wherein how to distinguish the label direction can be distinguished not only based on the features in the partial sub-labels 3, but also according to different ground color distributions.

In some embodiments, the graphic code label 1 can be disposed on a non-planar article surface.

In some embodiments, when the image of the graphic code label 1 is acquired in step 1), the graphic code label 1 is image-captured based on the base color of the array block 2 and/or the color of the graphic block, and the image of the graphic code label 1 is generated based on the result of the image capture.

With continued reference to fig. 2, in some embodiments, step 2) may specifically include the steps of:

identifying the dividing lines 4 of a plurality of array blocks 2 or the distribution positions of a plurality of the graphic blocks in the image to obtain a calibration dividing grid 6;

comparing the calibration demarcation grid 6 with a standard demarcation grid 5 to obtain distortion information of the image, wherein the standard demarcation grid 5 is a grid shape when the graphic code label 1 is arranged on a plane; based on the distortion information, performing the deformation correction; in a more preferred embodiment, the dividing line 4 may be at least obtained by identifying a plurality of the array blocks 2 according to the base color.

Therefore, through the obvious boundaries among the array blocks 2 with various different base colors or the obvious positions of the pattern blocks with various colors, for example, the grid formed by connecting the central points of each pattern block, the demarcation grid can be accurately and rapidly acquired, thereby the image correction can be rapidly completed, and the identification of the identity information of the article can be excellently completed under the condition that the pasting surface is uneven.

A third aspect of the embodiment of the present invention provides an identification system for a graphic code tag 1, which includes:

the image acquisition module is used for acquiring the image of the graphic code label 1;

the deformation correction module is used for correcting the deformation of the image of the graphic code label 1 based on the boundary shape of the array block 2 and/or the distribution shape of the graphic blocks in the image of the graphic code label 1;

A fourth aspect of the embodiments of the present invention provides a readable storage medium having stored therein a computer program which when executed performs the steps of the above-described identification method.

Example 1

As a typical application implementation case of the above technical solution, this embodiment illustrates a pattern structure of the graphic code tag 1 and a process for quickly and accurately identifying the tag, which is specifically as follows:

referring to fig. 1 and fig. 2 in combination, in this embodiment, a graphic code label 1 is provided, which is capable of overcoming the influence of uneven surfaces of articles and improving the recognition speed and accuracy, wherein a pattern is divided into a plurality of array blocks 2, and the plurality of array blocks 2 are different in color, for example, 6 array blocks 2 are arranged in two rows, and the sequence from left to right from top to bottom is red, orange, yellow, green, blue and purple; in the array block 2, small patterns of different shapes, black or white, are provided, which patterns have various shapes, and the sub-tag 3 is formed in the array block 2, thereby constituting a piece of information representing the sequence information.

When the label is identified, an image of the label is first captured, and since a plurality of ground colors exist in the label, the label is very easy to have a color which is obviously different from that of an adhered article, such as a common labor protection article, and the like, basically has a single color of white, red and yellow, and a small area color which is different from the color, such as purple, exists on the article, so that the position of the label can be very obviously and quickly captured, and even when the label is captured, the actions such as light supplementing, focusing and the like can be accurately performed based on obvious color indication.

Meanwhile, since the label is adhered to the spherical surface, there is distortion in the pattern of the sub-label 3, and in this case, if the conventional label image recognition method is adopted, there is a possibility that an erroneous result is recognized or the root pressing cannot be recognized.

In this embodiment, as shown in fig. 2, according to different colors in the plurality of array blocks 2, the plurality of array blocks 2 can be very easily and accurately divided to form the current calibration demarcation grid 6, and in the system, the grid pattern in the original plane can be stored in advance, at this time, according to the distortion position and the distortion degree of the calibration demarcation grid 6, the degree of article unevenness can be reflected, and further, according to the deformation, the image correction can be performed, and the related image correction method can be fully set with reference to the existing image correction process. The simplest way is to sequentially deform the whole image in equal proportion along the longitude and latitude directions of the grids, so that the demarcation grids in the corrected image completely coincide with the standard demarcation grids 5.

After the image correction is performed, the information represented by the sub-label 3 in the corrected image is identified, for example, the matching of different shapes and colors can represent different numbers or letters, etc., so as to obtain the clip information.

Finally, the segment information is spliced according to the sequence of the segment information, such as the sequence from left to right and from top to bottom, so that the character serial number representing the article can be obtained. In particular, the optional arrangement sequence is not limited thereto, as long as the positions in the image are consistent with the preset arrangement sequence.

In the embodiment, the information fragments are arrayed to match with various ground colors, so that the information identification of the tag is efficiently and accurately finished; in addition, the label is fused with various elements such as the color and the shape of the image block and the ground color of the array block 2, so that the label can contain enough information in a smaller size, is beneficial to the downsizing of the label, and has excellent robustness on the unevenness of the adhesive surface.

Example 2

As shown in fig. 3-5, this embodiment illustrates another graphic code label 1, in which the base color of the array block 2 is white, and is arranged horizontally in a vertical bar shape, so that there is no very obvious dividing line 4, and in the plurality of array blocks 2, graphic blocks formed by combining a plurality of shapes and colors are arranged vertically and linearly, each graphic block represents some numerical information, such as a green triangle represents 1, a red circle represents 2, and so on, and the colors of the last row of plus sign graphic blocks of the label in fig. 3-5 are differentiated so as to represent XX001, XX002, XX003, respectively; during identification, firstly, an image of a graphic code label 1 is rapidly captured on the surface of an article with single color (such as a black article) according to the multi-color characteristics, then the direction of the image and the position of each graphic block are easily judged according to the color and the shape of a plurality of graphic blocks, then a grid shown in fig. 2 is formed based on the position coordinates of the graphic blocks, correction is performed based on the distortion degree of the grid, and finally accurate identification of the graphic blocks is realized, so that an information code representing the identity of the article is obtained after combination.

In many embodiments, the array blocks 2 may be distributed in an array, or may be distributed in a single line (a straight line distribution may be understood as a linear array, i.e. the array column number is 1), and the sub-labels 3 in each array block 2 may be repeated or may be different, so as to represent more complex information according to the arrangement of the array blocks 2, where the former has a greater adaptability to unevenness and light interference, and the latter has a higher information complexity capable of marking.

Based on the above embodiments, it can be clear that, in the graphic code tag 1 provided by the embodiment of the present invention, the represented character serial numbers are segmented to form a plurality of sub-tags 3, and the sub-tags 3 are arranged in the array blocks 2 arranged in an array, so that a large amount of sequence information can be integrated in the tags with smaller sizes; when the label is identified, the quick capturing and identification can be carried out based on the ground color, and meanwhile, the image of the sub-label 3 in the array block 2 can be corrected based on the image deformation of the array block, so that the label identification efficiency and accuracy are improved.

It should be understood that the above embodiments are merely for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement the same according to the present invention without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A graphic code label, which is characterized by comprising a plurality of array blocks and sub-labels;

2. A graphic code label according to claim 1, wherein the array block is provided with a base color, the graphic block is different from the color of the array block, and the color of the sub-label and/or the array block has a plurality of colors;

preferably, the base colors of adjacent array blocks are different;

preferably, the ground colors of any two array blocks are different;

preferably, a plurality of the array blocks are distributed in a straight grid shape.

3. The graphic code label as claimed in claim 1, wherein the graphic blocks are arranged in a straight line.

4. A graphic code label according to claim 3, wherein the sub-label further optionally comprises a two-dimensional code and/or a bar code.

5. A method of identifying a graphic code label as claimed in any one of claims 1 to 4, comprising:

1) Acquiring an image of a graphic code label;

3) Obtaining segmentation information represented by each graphic block;

6. The method of claim 5, wherein the graphic code label is capable of being disposed on a non-planar surface of an article.

7. The identification method according to claim 5, wherein when the image of the graphic code label is acquired in step 1), the image of the graphic code label is captured based on the ground color of the array block and/or the color of the graphic block, and the image of the graphic code label is generated based on the result of the image capture.

8. The method according to claim 5, wherein step 2) specifically comprises:

identifying dividing lines of a plurality of array blocks in the image or distribution positions of a plurality of graph blocks to obtain a calibration dividing grid;

comparing the calibration demarcation grid with a standard demarcation grid to obtain distortion information of the image, wherein the standard demarcation grid is a grid shape when the graphic code label is arranged on a plane;

based on the distortion information, performing the deformation correction;

preferably, the dividing line is obtained by identifying according to the base color difference of a plurality of the array blocks.

9. A system for identifying a graphic code label, comprising:

10. A readable storage medium, characterized in that the readable storage medium has stored therein a computer program which, when executed, performs the steps of the identification method of any of claims 5-8.