Anti-counterfeiting film authenticity detection method, detection device and readable storage medium

Abstract

The application provides a true-false detection method, a detection device and a readable storage medium for a security film. The true-false detection method is applied to the true-false detection device for the security film. The surface of the security film comprises at least one security filler, and the security filler is arranged in a grid shape. The true-false detection device for the security film can detect the security film and obtain a grid security image. The grid security image is invisible to the naked eye. The true-false detection method for the security film comprises the following steps: detecting the security film to obtain the grid security image; magnifying the grid security image to obtain a magnified grid security image; and judging the true-false of the security film according to the magnified grid security image and a preset grid security image.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anti-counterfeiting, and particularly relates to a true-false detection method of an anti-counterfeiting film, a detection device and a readable storage medium. BACKGROUND

[0002] At present, traditional anti-counterfeiting films include fluorescent films, conductive films, magnetic films and the like. Most of these films are printed on the films in the form of anti-counterfeiting ink, ink or added in the form of additives inside the films by using fluorescent materials, conductive materials and magnetic materials. For such traditional anti-counterfeiting films, since the anti-counterfeiting materials are generally printed on the surface of the entire anti-counterfeiting film, the anti-counterfeiting materials are easy to be found by illegal persons and easy to be copied. Meanwhile, since a single anti-counterfeiting material is printed on the anti-counterfeiting film, the difficulty of copying is further reduced.

[0003] Therefore, in order to reduce the risk of being copied and improve the concealment of the anti-counterfeiting film, it is an urgent problem to be solved to provide a relatively concealed detection method. SUMMARY

[0004] The present application aims to solve or improve at least one of the above technical problems.

[0005] The first aspect of the present application is to provide a true-false detection method of an anti-counterfeiting film.

[0006] The second aspect of the present application is to provide a true-false detection device of an anti-counterfeiting film.

[0007] The third aspect of the present application is to provide a readable storage medium.

[0008] The technical solution of the first aspect of the present application provides a true-false detection method of an anti-counterfeiting film, which is applied to a true-false detection device of an anti-counterfeiting film. The surface of the anti-counterfeiting film comprises at least one anti-counterfeiting filler, and the anti-counterfeiting filler is arranged in a grid shape. The true-false detection device of the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a grid anti-counterfeiting image. The grid anti-counterfeiting image is invisible to the naked eye. The true-false detection method of the anti-counterfeiting film comprises the following steps: detecting the anti-counterfeiting film to obtain a grid anti-counterfeiting image; magnifying the grid anti-counterfeiting image to obtain a magnified grid anti-counterfeiting image; and judging the true-false of the anti-counterfeiting film according to the magnified grid anti-counterfeiting image and a preset grid anti-counterfeiting image.

[0009] The application provides a method for detecting the authenticity of an anti-fake film, which is applied to an anti-fake film authenticity detection device. The surface of the anti-fake film comprises a concave-convex structure, the grooves of the concave-convex structure are connected to form a grid, and the grooves of the concave-convex structure are filled with at least one anti-fake filler. The anti-fake film authenticity detection device can detect each anti-fake filler and obtain a corresponding grid anti-fake image, which is invisible to the naked eye. When detecting the authenticity of the anti-fake film, the anti-fake film is first detected to obtain the grid anti-fake image corresponding to the anti-fake filler. Since the grid anti-fake image is invisible to the naked eye, the grid anti-fake image is then magnified to obtain a magnified grid anti-fake image. For example, the grid anti-fake image can be magnified by a magnifying glass or a microscope. Finally, the authenticity of the anti-fake film is determined according to the magnified grid anti-fake image and a preset grid anti-fake image. In this way, the anti-fake filler of the application is difficult to be found under normal circumstances and can be detected only by the detection of the device. Since the anti-fake filler of the application is filled in a grid shape on the surface of the anti-fake film, the grid anti-fake image of the application also appears in a grid form. Compared with the traditional method of printing anti-fake materials on the entire surface of the anti-fake film, the grid anti-fake image has stronger concealment and is not easy to be found by an opponent. In addition, since the grid anti-fake image is invisible to the naked eye, the grid anti-fake image can be clearly presented only under the magnification of a magnifying device, further increasing the concealment.

[0010] In the above technical solution, before the anti-fake film is detected, the light transmittance of the anti-fake film is obtained. When the light transmittance of the anti-fake film is less than a preset value, the anti-fake film is fake, otherwise, the step of detecting the anti-fake film is performed.

[0011] In the above technical solution, before the anti-fake film is detected, the light transmittance of the anti-fake film is obtained. When the light transmittance of the anti-fake film is less than a preset value, the anti-fake film is fake, otherwise, the step of detecting the anti-fake film is performed.

[0012] In the above technical solution, when the anti-fake filler comprises a fluorescent material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine fluorescent grid anti-fake image. When the anti-fake filler comprises a magnetic material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine magnetic grid anti-fake image. When the anti-fake filler comprises a dielectric material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine conductive grid anti-fake image.

[0013] In the technical solution, when the anti-fake filler includes fluorescent material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine fluorescent grid anti-fake image, so that after obtaining the fluorescent grid anti-fake image, the fluorescent grid anti-fake image is first enlarged and then compared with a preset fluorescent grid anti-fake image to determine that the anti-fake film is true. Further, when the anti-fake filler includes magnetic material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine magnetic grid anti-fake image. Thus, after obtaining the magnetic grid anti-fake image, the magnetic grid anti-fake image is first enlarged and then compared with a preset magnetic grid anti-fake image to determine that the anti-fake film is true. Further, when the anti-fake filler includes dielectric material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine conductive grid anti-fake image. Thus, after obtaining the conductive grid anti-fake image, the conductive grid anti-fake image is first enlarged and then compared with a preset conductive grid anti-fake image to determine that the anti-fake film is true. The present application uses fluorescent material, magnetic material and conductive material as anti-fake fillers, so that only specific equipment can detect the anti-fake information, thereby improving the secrecy.

[0014] Further, when the magnetic grid image is obtained, the magnetic material can be detected by a magnetic signal detection device to obtain the magnetic grid anti-fake image. The magnetic signal detection device can be a special detection instrument, a smart mobile device with a special APP, etc. When the conductive grid image is obtained, the dielectric material can be detected by an electric signal detection device to obtain the conductive grid anti-fake image. When the fluorescent grid image is obtained, ultraviolet light can be emitted to the surface of the anti-fake film to irradiate the fluorescent material and obtain the fluorescent grid anti-fake image.

[0015] In the above technical solution, when the surface of the anti-fake film includes at least two anti-fake fillers, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain multiple grid anti-fake images. The authenticity detection method of the anti-fake film includes: detecting the anti-fake film to obtain a grid anti-fake image corresponding to each anti-fake filler; and comprehensively judging the authenticity of the anti-fake film according to the multiple grid anti-fake images.

[0016] In the technical solution, when the surface of the anti-fake film comprises at least two anti-fake fillings, the anti-fake film authenticity detection device can detect the anti-fake film and obtain multiple grid anti-fake images, that is, when the surface of the anti-fake film comprises two or more of fluorescent material, magnetic material and conductive material, the anti-fake film authenticity detection device can obtain a grid anti-fake image corresponding to each anti-fake filling. When identifying the authenticity of the anti-fake element, the anti-fake film is first detected, then the grid anti-fake image corresponding to each anti-fake filling is obtained, and the authenticity of the anti-fake film is comprehensively judged according to the multiple grid anti-fake images. The anti-fake film authenticity detection method provided by the application obtains multiple grid anti-fake images corresponding to the anti-fake fillings by detecting the anti-fake film. The authenticity of the anti-fake film is comprehensively judged by multiple grid anti-fake images. Compared with the traditional method of judging the authenticity of the anti-fake film by a single grid anti-fake image, the method has stronger concealment and higher copying difficulty. That is, only when the multiple grid anti-fake images are all the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film can be determined to be true. Therefore, the secrecy is greatly improved.

[0017] In the above technical solution, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings do not overlap, the step of comprehensively judging the authenticity of the anti-fake film according to the multiple grid anti-fake images comprises: comparing each grid anti-fake image with the standard reference image corresponding to each anti-fake filling. When each grid anti-fake image is the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film is true, otherwise, it is false.

[0018] In the technical solution, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings do not overlap, after obtaining the grid anti-fake image corresponding to each anti-fake filling, each grid anti-fake image is compared with the standard reference image corresponding to each anti-fake filling. When each grid anti-fake image is the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film is true, otherwise, it is false. The authenticity of the anti-fake film is comprehensively judged by multiple grid anti-fake images. Compared with the traditional method of judging the authenticity of the anti-fake film by a single grid anti-fake image, the method has stronger concealment and higher copying difficulty.

[0019] In the above technical solution, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings overlap, the step of comprehensively judging the authenticity of the anti-fake film according to the multiple grid anti-fake images comprises: obtaining the outer contour of the anti-fake film; determining the positions of different anti-fake fillings on the anti-fake film according to the outer contour of the anti-fake film and each grid anti-fake image; judging the overlapping condition between different anti-fake fillings according to the positions of different anti-fake fillings on the anti-fake film; when the different anti-fake fillings at least partially overlap, the anti-fake film is true, otherwise, it is false.

[0020] In the technical solution, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings overlap, the authenticity of the anti-fake film can be judged according to the overlap between the anti-fake fillings. Specifically, the anti-fake film can be fixed at a fixed position of a detection device, and then the outer contour of the anti-fake film can be obtained. After the grid anti-fake image is obtained, the positions of different anti-fake fillings on the anti-fake film can be determined according to the outer contour of the anti-fake film and each grid anti-fake image. It can be understood that the outer contour of the anti-fake film is used as a reference line, and then the positions of different anti-fake fillings on the anti-fake film can be determined according to the positions of the grid anti-fake images corresponding to different anti-fake fillings relative to the outer contour of the anti-fake film. In this way, the overlap between different anti-fake fillings can be determined. When the different anti-fake fillings at least partially overlap, the anti-fake film is authentic, otherwise it is fake. The present application can judge the authenticity of the anti-fake film according to the overlap between the anti-fake fillings, which has stronger concealment and higher difficulty of plagiarism compared with traditional judgment methods.

[0021] In the above technical solution, when the front and back of the anti-fake film are filled with at least two anti-fake fillings, the anti-fake film is detected on both sides to obtain front and back grid anti-fake images. The step of comprehensively judging the authenticity of the anti-fake film according to multiple grid anti-fake images includes: when the grid anti-fake images corresponding to the same anti-fake filling are at least partially consistent on the front and back, the anti-fake film is authentic, otherwise it is fake.

[0022] In the technical solution, when the front and back of the anti-fake film are filled with at least two anti-fake fillings, the anti-fake film is first detected on both sides by the detection device to obtain front and back grid anti-fake images. Then, the authenticity of the anti-fake film is comprehensively judged according to the front and back grid anti-fake images of the anti-fake fillings. When the grid anti-fake images corresponding to the same anti-fake filling are at least partially consistent on the front and back, the anti-fake film is authentic, otherwise it is fake. In this way, the present application can judge the authenticity of the anti-fake film according to the front and back grid anti-fake images of the anti-fake film, which has stronger concealment and higher difficulty of plagiarism.

[0023] In the above technical solution, the grid line width of the grid anti-fake image is 0.5um-50um, and the grid line spacing is 10um-200um.

[0024] In the technical solution, the grid line width of the grid anti-fake image is 0.5um-50um, and the grid line spacing is 10um-200um. In this way, the anti-fake filling of the present application can be difficult to find under normal circumstances, and can only be detected by equipment, which has stronger concealment and is not easy to be discovered by the opponent.

[0025] The second aspect of the present application provides a true and false detection device of an anti-fake film, comprising: a magnetic signal detection module, configured to detect magnetic information of the anti-fake film; an electric signal detection module, configured to detect conductive information of the anti-fake film; an ultraviolet light emitting module, configured to emit ultraviolet light; an image acquisition module, configured to acquire luminescent information presented by the anti-fake film; an image amplification module, configured to amplify the detected magnetic information, conductive information and fluorescent information of the anti-fake film; a light transmittance detection module, configured to detect light transmittance of the anti-fake film; and a processing unit, comprising a storage and a processor, wherein the storage stores a computer program, and the processor implements the true and false detection method of the anti-fake film according to any one of the first aspect of the present application when executing the program.

[0026] The second aspect of the present application provides a true and false detection device of an anti-fake film, comprising: a magnetic signal detection module, configured to detect magnetic information of the anti-fake film; an electric signal detection module, configured to detect conductive information of the anti-fake film; an ultraviolet light emitting module, configured to emit ultraviolet light; an image acquisition module, configured to acquire luminescent information presented by the anti-fake film; an image amplification module, configured to amplify the detected magnetic information, conductive information and fluorescent information of the anti-fake film; a light transmittance detection module, configured to detect light transmittance of the anti-fake film; and a processing unit, comprising a storage and a processor, wherein the storage stores a computer program, and the processor implements the true and false detection method of the anti-fake film according to any one of the first aspect of the present application when executing the program.

[0027] The third aspect of the present application provides a readable storage medium, which stores a computer program and / or instructions, and the computer program and / or instructions are executed to implement the true and false detection method of the anti-fake film according to any one of the first aspect of the present application.

[0028] Additional aspects and advantages of the present application will be apparent from the following description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of embodiments of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0030] Figure 1A schematic flow chart of a method for detecting the authenticity of an anti-counterfeit film provided by a first embodiment of the present invention is shown;

[0031] Figure 2 A block diagram of an authenticity detection device for an anti-counterfeiting film according to a second embodiment of the present invention is shown.

[0032] in, Figure 2 The corresponding relationship between the component names and numbers in is as follows:

[0033] 10 Authenticity detection device, 11 Magnetic signal detection module, 12 Electric signal detection module, 13 Image acquisition module, 14 Image amplification module, 15 Processing unit, 16 Ultraviolet light emission module, 17 Transmittance detection module. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above aspects, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments according to the present invention. However, the embodiments according to the present invention may also be implemented in other ways different from those described herein. Therefore, the protection according to the embodiments of the present invention is not limited to the specific embodiments disclosed below.

[0036] Example 1

[0037] like Figure 1 As shown, the technical solution of the first aspect of the present invention provides a method for detecting the authenticity of an anti-counterfeiting film, which is applied to an authenticity detection device for the anti-counterfeiting film. The surface of the anti-counterfeiting film includes at least one anti-counterfeiting filler, and the anti-counterfeiting filler is arranged in a grid shape. The authenticity detection device for the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a grid anti-counterfeiting image. The grid anti-counterfeiting image is invisible to the naked eye. The authenticity detection method for the anti-counterfeiting film includes:

[0038] S102: Detecting the anti-counterfeiting film to obtain a grid anti-counterfeiting image;

[0039] S104: Enlarging the grid anti-counterfeiting image to obtain an enlarged grid anti-counterfeiting image;

[0040] S106: judging the authenticity of the anti-counterfeiting film according to the amplified anti-counterfeiting grid image and the preset anti-counterfeiting grid image.

[0041] The application provides a method for detecting the authenticity of an anti-fake film, which is applied to an anti-fake film authenticity detection device. The surface of the anti-fake film comprises a concave-convex structure, the grooves of the concave-convex structure are connected to form a grid, and the grooves of the concave-convex structure are filled with at least one anti-fake filler. The anti-fake film authenticity detection device can detect each anti-fake filler and obtain a corresponding grid anti-fake image, which is invisible to the naked eye. When detecting the authenticity of the anti-fake film, the anti-fake film is first detected to obtain the grid anti-fake image corresponding to the anti-fake filler. Since the grid anti-fake image is invisible to the naked eye, the grid anti-fake image is then magnified to obtain a magnified grid anti-fake image. Finally, the authenticity of the anti-fake film is determined according to the magnified grid anti-fake image and a preset grid anti-fake image. In this way, the anti-fake filler of the application is difficult to be found under normal circumstances and can be detected only by the detection of the device. Since the anti-fake filler of the application is filled in a grid shape on the surface of the anti-fake film, the grid anti-fake image of the application also presents in a grid form, which has stronger concealment than the conventional anti-fake material printed on the entire surface of the anti-fake film and is not easy to be found by the opponent. In addition, since the grid anti-fake image of the application is invisible to the naked eye, the grid anti-fake image can be clearly presented only under the magnification of the magnification device, further increasing the concealment.

[0042] In the above embodiment, before the anti-fake film is detected, the light transmittance of the anti-fake film is obtained. When the light transmittance of the anti-fake film is less than a preset value, the anti-fake film is fake, otherwise, the step of detecting the anti-fake film is performed.

[0043] In this embodiment, before the anti-fake film is detected, the light transmittance of the anti-fake film is obtained. When the light transmittance of the anti-fake film is less than a preset value, the anti-fake film is fake, otherwise, the step of detecting the anti-fake film is performed.

[0044] In the above embodiment, when the anti-fake filler comprises a fluorescent material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine fluorescent grid anti-fake image; when the anti-fake filler comprises a magnetic material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine magnetic grid anti-fake image; and when the anti-fake filler comprises a dielectric material, the anti-fake film authenticity detection device can detect the anti-fake film and obtain a fine conductive grid anti-fake image.

[0045] In this embodiment, when the anti-fake filling includes fluorescent material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine fluorescent grid anti-fake image, so that after obtaining the fluorescent grid anti-fake image, the fluorescent grid anti-fake image is first enlarged, then compared with a preset fluorescent grid anti-fake image, and it is determined that the anti-fake film is true. Further, when the anti-fake filling includes magnetic material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine magnetic grid anti-fake image; so that after obtaining the magnetic grid anti-fake image, the magnetic grid anti-fake image is first enlarged, then compared with a preset magnetic grid anti-fake image, and it is determined that the anti-fake film is true. Further, when the anti-fake filling includes dielectric material, the authenticity detection device of the anti-fake film can detect the anti-fake film and obtain a fine conductive grid anti-fake image, so that after obtaining the conductive grid anti-fake image, the conductive grid anti-fake image is first enlarged, then compared with a preset conductive grid anti-fake image, and it is determined that the anti-fake film is true. The present application uses fluorescent material, magnetic material and conductive material as anti-fake filling, so that only through a specific device can the anti-fake information be detected, and the secrecy is improved.

[0046] Further, when acquiring the magnetic grid image, the magnetic material can be detected by the magnetic signal detection device to acquire the magnetic grid anti-counterfeiting image. Specifically, according to the display screen operation instruction of the magnetic signal detection device, the operation of acquiring the magnetic image of the high-transparency anti-counterfeiting film to be identified is performed, and the magnetic image of the high-transparency anti-counterfeiting film is acquired. According to the display screen operation instruction, the magnetic image of the high-transparency anti-counterfeiting film is magnified. According to the display screen operation instruction, the magnified information of the magnetic image of the high-transparency anti-counterfeiting film is compared with the standard magnetic image magnified information stored in the system of the magnetic signal detection device. The system determines whether the magnified information of the magnetic image of the high-transparency anti-counterfeiting film is consistent with the standard magnetic image magnified information, thereby assisting in identifying the authenticity of the high-transparency anti-counterfeiting film. Of course, it can also be identified in the form of magnetic data. Specifically, according to the display screen operation instruction of the magnetic signal detection device, the operation of acquiring the magnetic data of the high-transparency anti-counterfeiting film to be identified is performed, and the magnetic data of the high-transparency anti-counterfeiting film is acquired. According to the display screen operation instruction, the magnetic data value of the high-transparency anti-counterfeiting film is compared with the standard magnetic data value stored in the system of the magnetic signal detection device. The system determines whether the error between the magnetic data value of the high-transparency anti-counterfeiting film and the standard magnetic data value is within the specified range, thereby assisting in identifying the authenticity of the high-transparency anti-counterfeiting film. The magnetic signal detection device can be a special detection instrument, a smart mobile device installed with a special APP, etc. When acquiring the conductive grid image, the dielectric material can be detected by the electric signal detection device to acquire the conductive grid anti-counterfeiting image. Specifically, according to the operation instruction displayed on the capacitive touch screen of the smart mobile device, the operation of acquiring the conductive signal of the transparent anti-counterfeiting film is performed. The high-transparency anti-counterfeiting film is contacted with the capacitive touch screen of the mobile device, so that the high-transparency anti-counterfeiting film is coupled with the capacitive touch screen. It is determined whether the screen after coupling presents touch point information. The touch point information includes at least one touch point pattern and at least one touch point data. According to the operation instruction of the capacitive touch screen of the smart mobile device, it is determined whether the touch point information meets the standard, thereby assisting in identifying the authenticity of the high-transparency anti-counterfeiting film. When acquiring the fluorescent grid image, ultraviolet light is emitted to the surface of the anti-counterfeiting film to irradiate the fluorescent material, and the fluorescent grid anti-counterfeiting image is acquired. The high-transparency anti-counterfeiting film is observed by means of a magnifying glass or a microscope, thereby assisting in identifying the authenticity of the high-transparency anti-counterfeiting film.

[0047] In the above embodiment, when the surface of the anti-counterfeiting film includes at least two kinds of anti-counterfeiting fillers, the anti-counterfeiting film authenticity detection device can detect the anti-counterfeiting film and obtain multiple grid anti-counterfeiting images. The anti-counterfeiting film authenticity detection method comprises: detecting the anti-counterfeiting film to acquire a grid anti-counterfeiting image corresponding to each anti-counterfeiting filler; and comprehensively judging the authenticity of the anti-counterfeiting film according to the multiple grid anti-counterfeiting images.

[0048] In the embodiment, when the surface of the anti-fake film comprises at least two anti-fake fillings, the anti-fake film authenticity detection device can detect the anti-fake film and obtain multiple grid anti-fake images, that is, when the surface of the anti-fake film comprises two or more of fluorescent material, magnetic material and conductive material, the anti-fake film authenticity detection device can obtain the grid anti-fake image corresponding to each anti-fake filling. Therefore, when identifying the authenticity of the anti-fake element, the anti-fake film is first detected, then the grid anti-fake image corresponding to each anti-fake filling is obtained, and the authenticity of the anti-fake film is comprehensively judged according to the multiple grid anti-fake images. The anti-fake film authenticity detection method provided by the application can obtain multiple grid anti-fake images corresponding to the anti-fake fillings by detecting the anti-fake film. Therefore, the authenticity of the anti-fake film is comprehensively judged by multiple grid anti-fake images, which has stronger concealment and higher plagiarism difficulty compared with the traditional method of judging the authenticity of the anti-fake film by a single grid anti-fake image. That is, only when the multiple grid anti-fake images are all the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film can be determined to be true. Therefore, the secrecy is greatly improved.

[0049] In the above embodiment, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings do not overlap, the step of comprehensively judging the authenticity of the anti-fake film according to the multiple grid anti-fake images comprises: comparing each grid anti-fake image with the standard reference image corresponding to each anti-fake filling. When each grid anti-fake image is the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film is true, otherwise, it is false.

[0050] In the embodiment, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings do not overlap, after obtaining the grid anti-fake image corresponding to each anti-fake filling, each grid anti-fake image is compared with the standard reference image corresponding to each anti-fake filling. When each grid anti-fake image is the same as the standard reference image corresponding to each anti-fake filling, the anti-fake film is true, otherwise, it is false. The authenticity of the anti-fake film is comprehensively judged by multiple grid anti-fake images, which has stronger concealment and higher plagiarism difficulty compared with the traditional method of judging the authenticity of the anti-fake film by a single grid anti-fake image.

[0051] In the above embodiment, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings overlap, the step of comprehensively judging the authenticity of the anti-fake film according to the multiple grid anti-fake images comprises: obtaining the outer contour of the anti-fake film; determining the positions of different anti-fake fillings on the anti-fake film according to the outer contour of the anti-fake film and each grid anti-fake image; judging the overlapping situation between different anti-fake fillings according to the positions of different anti-fake fillings on the anti-fake film; when the different anti-fake fillings at least partially overlap, the anti-fake film is true, otherwise, it is false.

[0052] In this embodiment, when the anti-fake film is filled with at least two anti-fake fillings on one side, and the at least two anti-fake fillings overlap, the authenticity of the anti-fake film can be determined according to the overlap between the anti-fake fillings. Specifically, the anti-fake film can be fixed at a fixed position of the detection device, and then the outer contour of the anti-fake film can be obtained. After the grid anti-fake image is obtained, the position of different anti-fake fillings on the anti-fake film can be determined according to the outer contour of the anti-fake film and each grid anti-fake image. It can be understood that the outer contour of the anti-fake film is used as a reference line, and then the position of different anti-fake fillings on the anti-fake film can be determined according to the position of the grid anti-fake image corresponding to different anti-fake fillings relative to the outer contour of the anti-fake film. In this way, the overlap between different anti-fake fillings can be determined. When the different anti-fake fillings at least partially overlap, the anti-fake film is authentic, otherwise it is fake. The present application can determine the authenticity of the anti-fake film according to the overlap between the anti-fake fillings. Compared with the traditional determination method, it has stronger concealment and higher plagiarism difficulty.

[0053] In the above embodiment, when the front and back of the anti-fake film are filled with at least two anti-fake fillings, the anti-fake film is detected on both sides to obtain the front and back grid anti-fake images. The steps of comprehensively determining the authenticity of the anti-fake film according to the grid anti-fake images include: when the grid anti-fake images corresponding to the same anti-fake filling are at least partially consistent on the front and back, the anti-fake film is authentic, otherwise it is fake.

[0054] In this embodiment, when the front and back of the anti-fake film are filled with at least two anti-fake fillings, the anti-fake film is first detected on both sides by the detection device to obtain the front and back grid anti-fake images. Then, the authenticity of the anti-fake film is determined according to the grid anti-fake images of the front and back of the anti-fake filling. When the grid anti-fake images corresponding to the same anti-fake filling are at least partially consistent on the front and back, the anti-fake film is authentic, otherwise it is fake. In this way, the present application can determine the authenticity of the anti-fake film according to the grid anti-fake images of the front and back of the anti-fake film, which has stronger concealment and higher plagiarism difficulty.

[0055] In the above embodiment, the grid line width of the grid anti-fake image is 0.5-50um, and the grid line spacing is 10-200um.

[0056] In this embodiment, the grid line width of the grid anti-fake image is 0.5-50um, and the grid line spacing is 10-200um. In this way, the anti-fake filling of the present application can be difficult to find under normal circumstances, and can only be detected by equipment, which has stronger concealment and is not easy to be found by the opponent.

[0057] As Figure 2 The embodiment of the second aspect of the application provides a true and false detection device 10 of the anti-fake film, which comprises a magnetic signal detection module 11, an electric signal detection module 12, an ultraviolet light emitting module 16, an image acquisition module 13, an image amplification module 14, a light transmittance detection module 17 and a processing unit 15. The magnetic signal detection module 11 is used for detecting the magnetic information of the anti-fake film. The electric signal detection module 12 is used for detecting the conductive information of the anti-fake film. The ultraviolet light emitting module 16 is used for emitting ultraviolet light. The image acquisition module 13 is used for acquiring the luminescent information presented by the anti-fake film. The image amplification module 14 is used for amplifying the detected magnetic information, conductive information and fluorescent information of the anti-fake film. The light transmittance detection module 17 is used for detecting the light transmittance of the anti-fake film. The processing unit 15 comprises a storage and a processor. The storage stores a computer program. When the processor executes the program, the true and false detection method of the anti-fake film according to any one of the first aspect of the application is realized.

[0058] The embodiment of the second aspect of the application provides a true and false detection device 10 of the anti-fake film, which comprises a magnetic signal detection module 11, an electric signal detection module 12, an ultraviolet light emitting module 16, an image acquisition module 13, an image amplification module 14, a light transmittance detection module 17 and a processing unit 15. The magnetic signal detection module 11 is used for detecting the magnetic information of the anti-fake film. The electric signal detection module 12 is used for detecting the conductive information of the anti-fake film. The ultraviolet light emitting module 16 is used for emitting ultraviolet light. The image acquisition module 13 is used for acquiring the luminescent information presented by the anti-fake film. The image amplification module 14 is used for amplifying the detected magnetic information, conductive information and fluorescent information of the anti-fake film. The light transmittance detection module 17 is used for detecting the light transmittance of the anti-fake film. The processing unit 15 comprises a storage and a processor. The storage stores a computer program. When the processor executes the program, the true and false detection method of the anti-fake film according to any one of the first aspect of the application is realized.

[0059] The embodiments of the third aspect of the present application provide a readable storage medium having stored thereon a computer program and / or instructions which, when executed, implement the method for detecting the authenticity of the anti-fake film according to any one of the technical solutions of the first aspect of the present application. The additional aspects and advantages of the present application will become apparent in the description below, or will be understood through practice of the present application. In the embodiments according to the present application, the terms "first", "second", "third" are only used for descriptive aspects, and should not be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mount", "connect", "connection", "fix", and the like should be interpreted in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral connection; "connection" can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments according to the present application can be understood according to the specific circumstances.

[0060] Further, the present application also provides an application method of the anti-fake film. Specifically, the anti-fake film is combined with an identification card, a ticket, or packaging to protect the identification card, the ticket, or the packaging. The anti-fake film can be directly applied as a transparent window in the identification card, the ticket, or the packaging, or combined with a transparent window of the identification card, the ticket, or the packaging, and the authenticity of the identification card, the ticket, or the packaging is assisted to be identified by detecting the light transmission characteristics under visible light, the fluorescence characteristics under ultraviolet light, and the magnetic characteristics under a magnetic signal detection device. Of course, the anti-fake film can also be applied as a label or a wide strip on the identification card, the ticket, or the packaging. The authenticity of the identification card, the ticket, or the packaging is assisted to be identified by detecting the light transmission characteristics under visible light, the fluorescence characteristics under ultraviolet light, and the magnetic characteristics under a magnetic signal detection device. In addition, the anti-fake film can also be applied as a semi-open window security line in the identification card, the ticket, or the packaging. The authenticity of the identification card, the ticket, or the packaging is assisted to be identified by detecting the light transmission characteristics under visible light, the fluorescence characteristics under ultraviolet light, the magnetic characteristics under a magnetic signal detection device, and the conductive characteristics under a conductive signal detection device.

[0061] Further, although operations are depicted in a particular, sequential order, this should not be understood as requiring or otherwise advising that such operations be performed in the particular, sequential order shown and / or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous. Likewise, although specific implementation details are contained in the above discussion, these should not be construed as limiting the scope of the application. Certain features described in the context of separate embodiments can also be implemented together in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination.

[0062] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0063] The above merely provides preferred embodiments of the embodiments according to the present application, and is not intended to limit the embodiments according to the present application. The embodiments according to the present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments according to the present application shall be included in the protection scope of the embodiments according to the present application.

Claims

1. A method for detecting the authenticity of an anti-counterfeiting film, characterized in that: An authenticity detection device for an anti-counterfeiting film, wherein the surface of the anti-counterfeiting film includes at least one anti-counterfeiting filler, and the anti-counterfeiting filler is arranged in a grid pattern. The authenticity detection device for the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a grid anti-counterfeiting image, wherein the grid anti-counterfeiting image is invisible to the naked eye. The authenticity detection method for the anti-counterfeiting film includes: Detecting the anti-counterfeiting film to obtain the grid anti-counterfeiting image; amplifying the grid anti-counterfeiting image to obtain an amplified grid anti-counterfeiting image; judging the authenticity of the anti-counterfeiting film according to the amplified anti-counterfeiting grid image and the preset anti-counterfeiting grid image; When the surface of the anti-counterfeiting film includes at least two anti-counterfeiting fillers, the authenticity detection device of the anti-counterfeiting film can detect the anti-counterfeiting film and obtain multiple grid anti-counterfeiting images. The authenticity detection method of the anti-counterfeiting film includes: Detecting the anti-counterfeiting film to obtain a grid anti-counterfeiting image corresponding to each anti-counterfeiting filler; Comprehensively judging the authenticity of the anti-counterfeiting film based on multiple grid anti-counterfeiting images; When the anti-counterfeiting film is filled with the at least two anti-counterfeiting fillers on one side and the at least two anti-counterfeiting fillers overlap, the step of comprehensively judging the authenticity of the anti-counterfeiting film based on the multiple grid anti-counterfeiting images specifically includes: Obtaining the outer contour of the anti-counterfeiting film; determining positions of different anti-counterfeiting fillers on the anti-counterfeiting film according to the outer contour of the anti-counterfeiting film and each grid anti-counterfeiting image; Determining the overlap between different anti-counterfeiting fillers based on their positions on the anti-counterfeiting film; When different anti-counterfeiting fillers at least partially overlap, the anti-counterfeiting film is genuine, otherwise it is fake.

2. The method for detecting the authenticity of an anti-counterfeit film according to claim 1, characterized in that: Before testing the anti-counterfeiting film, the method further includes: Obtaining the light transmittance of the anti-counterfeiting film; When the light transmittance of the anti-counterfeiting film is less than a preset value, the anti-counterfeiting film is counterfeit; otherwise, the step of detecting the anti-counterfeiting film is performed.

3. The method for detecting the authenticity of an anti-counterfeiting film according to claim 1, wherein: When the anti-counterfeiting filler includes a fluorescent material, the authenticity detection device of the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a fine fluorescent grid anti-counterfeiting image; When the anti-counterfeiting filler includes a magnetic material, the authenticity detection device of the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a fine magnetic grid anti-counterfeiting image; When the anti-counterfeiting filler includes a dielectric material, the authenticity detection device of the anti-counterfeiting film can detect the anti-counterfeiting film and obtain a fine conductive grid anti-counterfeiting image.

4. The method for detecting the authenticity of an anti-counterfeit film according to claim 1, wherein: When the anti-counterfeiting film is filled with the at least two anti-counterfeiting fillers on one side and the at least two anti-counterfeiting fillers do not overlap, the step of comprehensively judging the authenticity of the anti-counterfeiting film based on the multiple grid anti-counterfeiting images specifically includes: Compare each grid anti-counterfeiting image with the standard reference image corresponding to each anti-counterfeiting filler. When each grid anti-counterfeiting image is identical to the standard reference image corresponding to each anti-counterfeiting filler, the anti-counterfeiting film is authentic; otherwise, it is fake.

5. The method for detecting the authenticity of an anti-counterfeiting film according to claim 1, wherein: When both the front and back sides of the anti-counterfeiting film are filled with the at least two anti-counterfeiting fillers, the anti-counterfeiting film is subjected to double-sided inspection to obtain a front-side grid anti-counterfeiting image and a back-side grid anti-counterfeiting image. The step of comprehensively judging the authenticity of the anti-counterfeiting film based on the multiple grid anti-counterfeiting images specifically includes: When the grid anti-counterfeiting images corresponding to the same anti-counterfeiting filler are at least partially consistent on the front and back surfaces, the anti-counterfeiting film is authentic; otherwise, it is fake.

6. The method for detecting the authenticity of an anti-counterfeit film according to claim 1, wherein: The grid line width of the grid anti-counterfeiting image is in the range of 0.5um-50um, and the grid line spacing is in the range of 10um-200um.

7. An authenticity detection device for an anti-counterfeiting film, characterized in that: include: Magnetic signal detection module, used to detect magnetic information of the anti-counterfeiting film; An electrical signal detection module, used to detect the conductive information of the anti-counterfeiting film; An ultraviolet light emitting module, used for emitting ultraviolet light; An image acquisition module, used to obtain the fluorescence information presented by the anti-counterfeiting film; An image magnification module, used to amplify the detected magnetic information, conductive information and fluorescent information of the anti-counterfeiting film; A light transmittance detection module, used to detect the light transmittance of the anti-counterfeiting film; The processing unit includes a storage and a processor, wherein a computer program is stored in the storage, and when the processor executes the program, the authenticity detection method of the anti-counterfeiting film according to any one of claims 1 to 6 is implemented.

8. A readable storage medium having a computer program and / or instructions stored thereon, characterized in that: When the computer program and / or instructions are executed, the steps of the method for detecting the authenticity of the anti-counterfeiting film according to any one of claims 1 to 6 are implemented.

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