CN111435458A - Method and apparatus for creating and verifying anti-counterfeiting marks - Google Patents

Abstract

Methods and apparatus, as well as computing devices and machine-readable storage media, for creating and verifying an anti-counterfeiting mark are disclosed. The method for creating the anti-counterfeiting mark comprises the following steps: acquiring a first image of a specific surface of an article to be anti-counterfeit, wherein a label is attached to a random position of the specific surface; dividing the first image into a plurality of areas and generating first image information, wherein the first image information at least comprises content information of the labels and image information of parts which are not shielded by the labels in each area; and recording the first image information as standard information for verifying authenticity.

Description

Method and apparatus for creating and verifying anti-counterfeiting marks

technical field

The present application relates to the field of anti-counterfeiting technology, and in particular, to a method and device for creating and verifying anti-counterfeiting marks.

Background technique

Product anti-counterfeiting is a worldwide problem, and physical or digital technology is currently used in the market for anti-counterfeiting. Physical anti-counterfeiting involves adding holograms and watermarks to the product or its packaging, which is not particularly convenient for end users and usually requires additional special inspection devices. Compared with physical anti-counterfeiting technology, digital anti-counterfeiting technology such as 2D barcode is more widely used, because the end user only needs a smartphone to verify the authenticity. But on the other hand, the digital security code itself is relatively easy to be copied by counterfeiters.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method and apparatus for creating and verifying anti-counterfeiting marks, as well as a computing device and a machine-readable storage medium, which are capable of creating and verifying anti-counterfeiting marks.

One aspect of the present application discloses a method for creating an anti-counterfeiting mark, comprising the following steps:

Obtaining a first image of a specific surface of the anti-counterfeiting article, wherein a label is attached to a random position of the specific surface; dividing the first image into several areas and generating first image information, the first image information at least includes : the content information of the label, and the image information of the part not covered by the label in each area; and recording the first image information as standard information for authenticating.

Another aspect of the present application discloses a method for verifying an anti-counterfeiting mark created by the aforementioned method, comprising the following steps:

Acquiring an image of the surface on which the label is attached to the product to be verified as a second image, the position and size of the second image are the same as the first image; dividing the second image in the same way as the first image forming a number of regions and generating second image information; and comparing the second image information with the first image information to check the similarity between the second image information and each corresponding region of the first image information ; judge and draw conclusions for verification.

In addition, the present application further discloses a device for creating an anti-counterfeiting mark, which includes: a first image acquisition unit for acquiring a first image of a specific surface of the anti-counterfeiting item, wherein a label is attached to a random position of the specific surface; an image information generating unit, which divides the first image into several areas and generates first image information, where the first image information at least includes: the label information of the label, and each area that is not covered by the label part of the image information; and a recording unit that records the first image information as standard information for authenticating authenticity.

The present application also discloses a device for verifying anti-counterfeiting marks, which includes: a second image acquisition unit, which acquires an image of the surface of the product to be verified with the label attached as the second image; and a second image information generating unit, which converts the second image Divide the first image into several regions and generate second image information in the same manner as the first image; and a comparison unit, which compares the second image information with the first image information, and verifies that the second image information is the same as the first image information. similarity of each corresponding area of the first image information; a verification unit, which judges and draws a verification conclusion.

In order to further understand the features and technical content of the present application, please refer to the following detailed description and accompanying drawings related to the present application, however, the accompanying drawings are only for reference and description, and are not intended to limit the present application.

Description of drawings

The foregoing and other aspects of the present application will be more fully understood and appreciated from the following detailed description with reference to the accompanying drawings, in which:

1 shows a flowchart of a method for creating an anti-counterfeiting mark according to an embodiment of the present invention;

2 shows a flowchart of a method for verifying anti-counterfeiting marks according to an embodiment of the present invention;

3 shows a schematic diagram of an apparatus for creating an anti-counterfeiting mark according to an embodiment of the present invention;

FIG. 4 shows a schematic diagram of an apparatus for verifying an anti-counterfeiting mark according to an embodiment of the present invention;

FIG. 5 shows a schematic diagram of a computing device according to an embodiment of the present invention;

Figure 6a shows a schematic diagram of a first image according to an embodiment of the present invention;

Fig. 6b shows a schematic diagram of a second image according to an embodiment of the present invention;

Figure 7a shows a schematic diagram of a first image according to another embodiment of the present invention;

FIG. 7b shows a second image schematic diagram according to another embodiment of the present invention.

Detailed ways

In order to help those skilled in the art to understand exactly the subject matter claimed in the present application, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

FIG. 1 shows a flowchart of a method for creating an anti-counterfeiting mark according to an embodiment of the present invention. The method shown in FIG. 1 can be implemented by any computing device with computing capability, and the computing device can be, but is not limited to, a desktop computer, a notebook computer, a tablet computer, a server, and the like.

As shown in the figure, a method 100 for creating an anti-counterfeiting mark includes the following steps:

In step S101, a first image of a specific surface of the object to be anti-counterfeited is acquired, wherein a label is attached to a random position of the specific surface. In this step, the method of acquiring the first image is, for example, performing image acquisition on a specific surface of the anti-counterfeiting article through an image acquisition device such as a camera. In order to obtain a sufficiently sharp image, the sharpness of the image is preferably on the order of microns. Wherein, a label is attached to the specific surface of the captured image, and the label can be added to a random position on the specific surface by hand or machine by printing, pasting or stamping. Wherein, the content information of the label includes one or more of text information, graphic information, and coding information. For example, the label is a barcode, a QR code, a digital code or a picture, etc., or a combination of two or more of them.

In step S102, the obtained first image is divided into several regions and first image information is generated. There are various ways to divide the first image, for example, grid division, center-symmetric division, etc. may be performed according to certain preset rules, or several concentric circles may be set to spread from the inside to the outside in the form of target rings The first image is divided in the form of . In addition, the image segmentation algorithm may also be used to divide the first image. These algorithms include, for example, threshold segmentation, region segmentation, edge segmentation, and histogram segmentation. The image division method can be selected according to the characteristics of the first image itself, as shown in Figure 6a. For example, when the pattern content and color of the first image itself are relatively balanced, it is simpler and faster to use the setting rules to divide; see Figure 7a As shown, when the pattern content or color is relatively concentrated, it may be more efficient to consider adopting an image segmentation algorithm for segmentation. The first image information includes at least: content information of the label, and image information of a portion of each area that is not covered by the label. In order to improve the accuracy of the first image information, in some embodiments, before step S101 , a step of acquiring an original image of the specific surface of the anti-counterfeiting article when no label is attached is further included. If the step of acquiring the original image is added, the original image is also used as one of the reference data for generating the first image information.

In step S103, the first image information is recorded as standard information for verifying authenticity.

According to actual needs, the first image may be a complete image of the specific surface, such as an image of one complete surface of the six surfaces of a product packaging box; or, the first image may be a complete image from the specific surface A captured image including the label and its surrounding area. The peripheral area is a regular or irregular area extending outward from the outer edge of the label, such as a rectangle, a circle, or determined according to the actual shape of the label. In some embodiments, the size of the peripheral area is such that the distance from the outer edge of the peripheral area to the center of the label in the same direction is 1.2-1.5 times the distance from the outer edge of the label to the center of the label. This size usually ensures that the content of the captured image is sufficient for verification without burdening the data processing system.

FIG. 2 shows a flow chart of a method for verifying an anti-counterfeiting mark according to an embodiment of the present invention. The method shown in FIG. 2 can be implemented by any computing device with computing capability, and the computing device can be, but is not limited to, a desktop computer, a notebook computer, a tablet computer, a server, and the like.

As shown in the figure, a method 200 for verifying the aforementioned anti-counterfeiting mark includes the following steps:

In step S201, an image of the surface on which the product to be verified is attached with a label is obtained as a second image, and the position and size of the second image are the same as the first image; The image of the surface of the label serves as the second image to be authenticated. It can be understood that the position and size of the second image are the same as the first image. If the first image is a complete image of a specific surface, the second image is also a complete image of the corresponding surface of the product to be verified; If the image captured from the complete image of the specific surface includes the label and its surrounding area, the second image is also an image of the corresponding label and its surrounding area.

In step S202, the second image is divided into several regions corresponding to the first image one-to-one according to the same rules as the first image, and second image information is generated; and

In step S203, the second image information is compared with the first image information, and the similarity between the second image information and each corresponding region of the first image information is checked. Referring to Fig. 6b and Fig. 7b, it can be seen that when the angle or position of the label in the second image is not completely consistent with Fig. 6a and Fig. 7a, the portion of each area that is not covered by the label The image information changes, which affects the similarity.

In step S204, a verification conclusion is judged and obtained. In some embodiments, the method of judging and drawing the verification conclusion is: counting the number of corresponding regions whose similarity reaches a preset similarity threshold, and if the number satisfies the preset pass rate, it is considered that the verification is passed. It can be understood that, in different embodiments, the preset similarity threshold of each corresponding region and the overall preset pass rate can be adjusted according to requirements. Appropriate redundant data and a certain degree of fault tolerance ensure that even in the case of partial contamination on the surface of the product to be verified or some new markings added during the circulation process, the verification can still be passed.

Fig. 3 shows a schematic diagram of an apparatus for creating an anti-counterfeiting mark according to an embodiment of the present invention,

FIG. 4 shows a schematic diagram of an apparatus for verifying an anti-counterfeiting mark according to an embodiment of the present invention. The apparatuses shown in FIG. 3 and FIG. 4 may be implemented by software, hardware or a combination of software and hardware. The devices shown in Figures 3 and 4 may be installed, for example, in any suitable computing device with computing capabilities.

As shown in FIG. 3 , an apparatus 300 for creating an anti-counterfeiting mark includes: a first image acquisition unit 310 for acquiring a first image of a specific surface of an object to be anti-counterfeiting, wherein a label is attached to a random position of the specific surface; An image information generating unit 320, which divides the first image into several regions and generates first image information; and a recording unit 330, which records the first image information as standard information for verifying authenticity, the first image information It includes at least: the label information of the label, and the image information of the part not covered by the label in each area.

As shown in FIG. 4, a device 400 for verifying anti-counterfeiting marks includes: a second image acquisition unit 410, which acquires an image of the surface of the product to be verified with the label attached as a second image; and a second image information generation unit 420, which uses the The second image is divided into several regions in the same manner as the first image and second image information is generated; and a comparison unit 430 compares the second image information with the first image information, and checks the first image information. The similarity between the second image information and each corresponding area of the first image information; the verification unit 440, judges and draws a verification conclusion.

Figure 5 shows a schematic diagram of a computing device according to one embodiment of the present invention. As shown in FIG. 5 , computing device 500 may include processor 510 and memory 520 coupled with processor 510 . The memory 520 stores executable instructions, which when executed cause the processor 510 to perform the method 100 or 200.

Embodiments of the present invention further provide a machine-readable storage medium having executable instructions thereon, and when the executable instructions are executed, cause a machine to execute the method 100 or 200 .

While the application has been shown and described based on specific embodiments, the application is not limited to the details shown. On the contrary, various details of the present application may be modified within the scope of the claims and their equivalents.

Claims (17)

1. a method for creating an anti-counterfeiting mark, is characterized in that, comprises the steps: acquiring a first image of a specific surface of the anti-counterfeiting article, wherein a label is attached to a random position of the specific surface; Dividing the first image into several areas and generating first image information, the first image information at least includes: the content information of the label, and the image information of the part not covered by the label in each area; and The first image information is recorded as standard information for verifying authenticity. 2 . The method for creating an anti-counterfeiting mark according to claim 1 , wherein the content information of the label includes one or more of text information, graphic information, and coded information. 3 . 3 . The method for creating an anti-counterfeiting mark according to claim 1 , wherein the method of attaching the label to a random position on the specific surface is printing, pasting or stamping. 4 . 4 . The method for creating an anti-counterfeiting mark according to claim 1 , wherein the method of dividing the first image into several regions is dividing according to a set rule, or dividing after calculation according to an image segmentation algorithm. 5 . 5 . The method for creating an anti-counterfeiting mark according to claim 4 , wherein the division according to the set rule is equal division or division from the inside to the outside. 6 . 6. The method for creating an anti-counterfeiting mark according to claim 4, wherein the image segmentation algorithm comprises: threshold segmentation, region segmentation, edge segmentation and theoretical segmentation. 7 . The method for creating an anti-counterfeiting mark according to claim 1 , wherein the first image is a complete image of the specific surface; or, the first image is intercepted from the complete image of the specific surface. 8 . of the label and its surrounding area. 8. The method for creating an anti-counterfeiting mark according to claim 7, wherein the peripheral area is a regular or irregular area extending outward from the outer edge of the label, and the peripheral area in the same direction is a regular or irregular area. The distance from the outer edge to the center of the label is 1.2 to 1.5 times the distance from the outer edge of the label to the center of the label. 9 . The method for creating an anti-counterfeiting mark according to claim 1 , further comprising the step of collecting an original image of the specific surface of the anti-counterfeiting item when no label is attached, and the original image is used as reference data for generating the first image information. 10 . one. 10. A device for creating an anti-counterfeiting mark, comprising: a first image acquisition unit for acquiring a first image of a specific surface of the anti-counterfeiting article, wherein a label is attached to a random position of the specific surface; A first image information generating unit, which divides the first image into several areas and generates first image information, where the first image information at least includes: the label information of the label, and the label information in each area that is not covered by the label image information of the occluded portion; and A recording unit, which records the first image information as standard information for verifying authenticity. 11. A computing device comprising: processor; and a memory storing executable instructions which, when executed, cause the processor to perform the method of any of claims 1-9. 12. A machine-readable storage medium having thereon executable instructions that, when executed, cause a machine to perform the method of any one of claims 1-9. 13. A method for verifying the anti-counterfeiting mark created by any one of the methods in claims 1-9, characterized in that it comprises the following steps: Acquiring an image of the surface to which the product to be verified is attached with a label as a second image, where the position and size of the second image are the same as the first image; dividing the second image into several regions in the same manner as the first image and generating second image information; comparing the second image information with the first image information, and checking the similarity between the second image information and each corresponding region of the first image information; and Judgment and draw conclusions. 14. The verification method according to claim 13, wherein the method of judging and drawing the verification conclusion is: counting the number of corresponding regions whose similarity reaches a preset similarity threshold, and if the number satisfies the preset pass rate, considered verified. 15. A device for verifying the anti-counterfeiting mark created by the method of any one of claims 1-9, characterized in that it comprises: a second image acquisition unit, which acquires an image of the surface of the product to be verified with the label attached as the second image; A second image information generating unit, which divides the second image into several regions in the same manner as the first image and generates second image information; a comparison unit, which compares the second image information with the first image information, and checks the similarity between the second image information and each corresponding area of the first image information; and Verification unit, judges and draws verification conclusions. 16. A computing device comprising: processor; and a memory storing executable instructions which, when executed, cause the processor to perform the method of any one of claims 13 or 14. 17. A machine-readable storage medium having executable instructions thereon which, when executed, cause a machine to perform the method of any one of claims 13 or 14.

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