Identification and counterfeit detection method and device based on lattice screen anti-counterfeit label, equipment and medium
An anti-counterfeiting label and dot-matrix screen technology, applied in the field of anti-counterfeiting, can solve the problems of poor anti-counterfeiting effect, endangering the interests of consumers, adverse effects on social and economic order, etc., and achieve the effect of strong non-replicability and good anti-counterfeiting effect.
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Embodiment 1
[0039] Embodiment 1 provides an identification and verification method based on a dot matrix screen anti-counterfeit label, including two parts: image recognition and counterfeit verification comparison, identifying the anti-counterfeit area of the dot matrix screen anti-counterfeit label to obtain a sequence code representing a random pattern, It provides comparison data for the counterfeit verification process of the subsequent dot matrix screen anti-counterfeit labels. During the counterfeit verification comparison process, the dynamic verification template is used for synchronous clock comparison to realize dynamic counterfeit verification; random graphics are dynamically changed under different clock data, It has randomness, so it is non-reproducible. Using a dot matrix screen anti-counterfeiting label that dynamically displays random graphics has a better anti-counterfeiting effect. Based on this kind of dot matrix screen anti-counterfeiting label, a counterfeit verifica...
Embodiment 2
[0053] The difference between this embodiment and the above-mentioned embodiment is that, according to the sequence code algorithm, the target sequence code in the anti-counterfeit label image of the dot matrix screen is identified, and the sequence code recognition algorithm is introduced, as follows image 3 As shown, it includes the following steps:
[0054] Obtaining the anti-counterfeiting label image of the dot matrix screen, and preprocessing the anti-counterfeiting label image of the dot matrix screen;
[0055] Extracting the target anti-counterfeiting area from the preprocessed dot matrix screen anti-counterfeiting label image;
[0056] Thresholding the target anti-counterfeiting area to obtain a binarized image, dividing the binarized image into 8×8 blocks, and these blocks have the same size, of course, in other embodiments, these 8×8 blocks The blocks can also be unequal, and the proportion of the foreground pixels in each block is calculated. If the proportion is...
Embodiment 3
[0078] Embodiment 3 discloses a device corresponding to the identification and verification method based on the dot matrix screen anti-counterfeit label corresponding to the above embodiment, which is the virtual device structure of the above embodiment, such as Figure 4 As shown, a kind of identification verification device based on dot matrix screen anti-counterfeiting label, it comprises:
[0079] The image acquisition module 410 is used to acquire the anti-counterfeiting label image of the dot matrix screen, and identify and upload the barcode information in the anti-counterfeiting label image of the dot matrix screen;
[0080] The serial code identification module 420 is used to identify the anti-counterfeiting label image of the dot matrix screen to obtain the target serial code, and upload the target serial code for counterfeit verification comparison;
[0081] The result display module 430 is used to receive and display the counterfeit verification and comparison resu...
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