CN112819124B - Method for manufacturing and using anti-counterfeit label of financial document voucher - Google Patents
Method for manufacturing and using anti-counterfeit label of financial document voucher Download PDFInfo
- Publication number
- CN112819124B CN112819124B CN202110419924.5A CN202110419924A CN112819124B CN 112819124 B CN112819124 B CN 112819124B CN 202110419924 A CN202110419924 A CN 202110419924A CN 112819124 B CN112819124 B CN 112819124B
- Authority
- CN
- China
- Prior art keywords
- code
- dimensional
- financial document
- dimensional model
- verification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
- G06K1/121—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/12—Accounting
- G06Q40/125—Finance or payroll
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention discloses a method for manufacturing and using an anti-counterfeiting label of a financial document voucher, which comprises two main steps of conversion and verification, wherein the main step of conversion is S11, the financial document voucher needing to be transmitted outwards is read by a reading terminal, and the read content is transmitted to an anti-counterfeiting server; s12, the anti-counterfeiting server scans and identifies the content of the financial document voucher and determines an authentication code printing area; s13, the anti-counterfeiting server randomly selects a three-dimensional model and then rotates to obtain a projection image of the three-dimensional model on the screen; s14, the anti-counterfeiting server generates a plurality of position points, and part of the content in the projection image is selected to be converted into digital image data according to the position points; and S15, the anti-counterfeiting server generates a verification code and prints the verification code on the financial document voucher through the printing terminal. By adopting the technical scheme of the invention, the financial document voucher can be verified with high security under the condition of being separated from the network.
Description
Technical Field
The invention relates to a method for manufacturing and using an anti-counterfeit label of a financial document voucher.
Background
The technical scheme that the two-dimension code is used for transmitting information is common in the prior art, when the existing two-dimension code is used for zone information transmission, information is often unsafe due to the openness and the open source of the existing two-dimension code, and even if the encrypted two-dimension code is adopted, the encrypted two-dimension code and the unencrypted two-dimension code cannot be distinguished by a user due to the fact that the appearance of the encrypted two-dimension code is the same as that of the unencrypted two-dimension code. As a result, in many occasions, especially in the field of anti-counterfeiting and asking, a counterfeiter uses the public two-dimensional code to counterfeit and tampers with all entry address information in the two-dimensional code, so that the verification address which should be entered is tamped, and the security of the two-dimensional code for transmitting information by the clear code is greatly challenged. Similarly, other clear-code-transfer security labels have similar problems, such as security and traceability using QR codes. Due to the open source of the QR code, the product adopting the QR code for anti-counterfeiting is safer, and counterfeit goods cannot be prevented. Meanwhile, due to the advantages of convenience and large information transmission of the two-dimensional code, plain code transmission represented by the two-dimensional code is very suitable for wide application, and particularly, the two-dimensional code is added frequently for general financial document vouchers and the like. Therefore, according to the existing clear code transmission scheme, on the basis of the two-dimensional code technical scheme, the anti-counterfeiting effect is required to be increased. In the prior art, a mode of scanning a two-dimensional code to display a website is often adopted, and a specified website is logged in to perform authenticity identification, but the authenticity identification mode also has a great defect, and the website for identification is possibly tampered due to an explicit code display mode of the two-dimensional code, so that anti-counterfeiting failure is caused. In view of the above technical problems, the existing solutions are as follows:
first, chinese patent application No. CN202022047759.9, a three-dimensional antifalsification label with electronic chip, including the label subassembly, the label subassembly includes the base member, the bottom of base member is equipped with the rectangle fixed block, the both ends of base member bottom are equipped with symmetric distribution's bar locating piece, first rectangular channel has been seted up on the surface of base member, be equipped with grating identification piece in the first rectangular channel, the second rectangular channel has been seted up to the bottom of first rectangular channel inner wall, be equipped with 3D antifalsification label in the second rectangular channel, the third rectangular channel has been seted up to the bottom of second rectangular channel inner wall, be equipped with electronic antifalsification label in the third rectangular channel. This three-dimensional antifalsification label with electronic chip can prevent that antifalsification label from taking place to drop in the transportation through the rectangle fixed block and the bar locating piece of base member with this three-dimensional antifalsification label and product fixed position, makes this three-dimensional antifalsification label have dual anti-fake function through 3D antifalsification label and electronic antifalsification label, improves this three-dimensional antifalsification label's security. The processing is carried out by adopting a hardware electronic tag mode, and the processing scheme has higher hardware cost, is difficult to realize and is not very suitable.
Secondly, the chinese patent application No. cn201911154684.x discloses a secure three-dimensional code for a block chain and a generating and decoding method, the secure three-dimensional code includes a code word positioning area, a code word initial point confirming area, a code word control information area, a code word data information area and a picture area; the picture area embeds pictures, two-dimensional code and/or three-dimensional code words and sets. The generation method acquires data information to be transmitted and pictures, two-dimensional codes and/or two-dimensional code words to be embedded; extracting and storing the picture characteristic value information in a server, and performing encryption, compression and error coding processing to obtain data information to be transmitted; and determining the composition and size of the safe three-dimensional code, filling the contents of each region into the safe three-dimensional code, and generating the corresponding safe three-dimensional code. The decoding method photographs the safe three-dimensional code scanning code, acquires the picture, processes and restores the picture, performs error control decoding and decompression on restored information, and reads and decrypts data information through the code scanning terminal. The invention effectively improves the anti-counterfeiting performance, and the embedded picture improves the visual identification. The technology is suitable for being used on financial document vouchers, but a large amount of calculation in the technical scheme is server-dependent, so that network support is needed during design and verification, more waiting time is needed in the operation process, and the problem of poor use experience exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for manufacturing and using an anti-counterfeiting label of a financial document voucher, which can be used for carrying out high-security verification on the financial document voucher under the condition of being separated from a network.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a financial document voucher antifalsification label preparation application method, cooperation financial document voucher antifalsification conversion system uses, and financial document voucher antifalsification conversion system includes anti-fake server, with anti-fake server communication connection's reading terminal and printing terminal, has set for a plurality of three-dimensional model document in anti-fake server to with read the terminal synchronization, financial document voucher antifalsification preparation application method includes two main steps of conversion and verification, the main step of conversion includes following step:
s11, the financial document voucher needing to be transmitted to the outside is read by the reading terminal, and the read content is transmitted to the anti-counterfeiting server;
s12, the anti-counterfeiting server scans and identifies the content of the financial document voucher and determines an authentication code printing area;
s13, the anti-counterfeiting server randomly selects a three-dimensional model and then rotates to obtain a projection image of the three-dimensional model on the screen;
s14, the anti-counterfeiting server generates a plurality of position points, and part of the content in the projection image is selected to be converted into digital image data according to the position points;
s15, the anti-counterfeiting server generates an authentication code according to the position point data, the image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model, and prints the authentication code on the financial document voucher through the printing terminal;
the main verification step comprises the following steps:
s21, the verifier scans the financial document voucher printed with the verification code through the reading terminal and analyzes the financial document voucher to obtain position point data, image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model;
s22, selecting the corresponding three-dimensional model according to the number of the three-dimensional model by the reading terminal;
s23, correspondingly rotating according to the rotation angle of the three-dimensional model to form corresponding projection, obtaining the projected image data of the three-dimensional model by the reading terminal, selecting the data of the corresponding position in the projected image data as image verification data according to the position point data by the reading terminal, comparing the image data with the image verification data, and judging that the verification code is true when the similarity of the image data and the image verification data is greater than a threshold value, namely the financial document voucher is true, otherwise, judging that the verification code is false, namely the financial document voucher is false.
According to the technical scheme, the used three-dimensional image can be synchronized to different reading terminals by the anti-counterfeiting server according to the requirements, so that different authorities of different reading terminals are guaranteed, meanwhile, the method is different from the existing encryption method by encrypting the rotation angle point of the three-dimensional model in use, and even if a part of the reading terminals are cracked, the safety of other reading terminals cannot be influenced. Furthermore, the reading terminal can be used in the environment completely separated from the network area, and the use requirements of national network workers in the backward communication unstable area are met. For example, when the terminal is dispatched to a region where power is not supplied and a network is connected for construction, field management personnel only need to synchronize the reading terminal and the anti-counterfeiting server before starting, so that the security of clear data can be ensured, and the financial document voucher sent subsequently can be verified, thereby overcoming the security problem of clear transmission in the prior art.
Preferably, in step S12, when the anti-counterfeit server scans and identifies the content of the financial document voucher, a plurality of selection frames are preset according to the type of the financial document voucher, and according to the positions of the selection frames of the scanning result, the preset content is selected to be converted into a check code, when the selection frames are preset, the set words and the number parts in the financial document voucher are selected as the preset content to be converted into the check code, wherein the content of the set words is converted into corresponding format numbers according to a list form, the number parts include Chinese capitalized numbers and arabic numbers, the Chinese capitalized numbers are converted by recognition, the arabic numbers are directly used, all the digital contents form the check code by a preset conversion mode, and the preset conversion mode is the same as or inverse to the preset conversion mode in the reading terminal;
in the step S15, a check code is added to the generation of the verification code;
in step S23, the check code is compared with the data at the corresponding position on the financial document voucher, if the comparison result is the same, the financial document voucher is determined to be true, otherwise, the financial document voucher is determined to be false.
Another vulnerability of clear code transmission is that a counterfeiter can perform a counterfeiting process by combining a real two-dimensional code and a false certificate. Aiming at the situation, the invention adds a plurality of selection frames, the set positions of the selection frames often correspond to key positions in the document voucher, such as key data, key voice and other contents, therefore, the falsified bill contents and the verification code used as the plain code conflict, so that the bill contents and the verification code cannot be matched, and the judgment of the authenticity of the document voucher cannot be influenced finally.
Preferably, in step S15, the generating step of the verification code includes:
z1, the anti-counterfeiting server generates a two-dimensional code in a preset format according to the position point data, the image data and the number of the selected three-dimensional model, the two-dimensional code is spliced as six faces of a cube verification code to form the cube verification code with the surface being the two-dimensional code, and in the initial stage, the cube verification code is arranged in a mode that the front face is completely parallel to a screen;
z2, the anti-counterfeiting server rotates the generated cube verification code in the same rotation mode according to the rotation angle of the selected three-dimensional model;
z3, the printing terminal prints the square authentication code on the financial document voucher.
The invention adopts a three-dimensional two-dimensional code projection mode to acquire the projection data of the three-dimensional model, and skillfully implies partial data.
Preferably, in step Z1, the generated two-dimensional codes are divided into three groups of a two-dimensional codes of type a and three groups of B two-dimensional codes, and the three groups of the two-dimensional codes of type a and three groups of the two-dimensional codes of type B are respectively used as six faces of the cube verification code, where the two-dimensional codes of type a are the bottom face and two side faces of the cube verification code, the two-dimensional codes of type B are the top face, the front face and the back face of the cube verification code, and each face in the cube verification code corresponds to one color. Each surface of the invention is provided with a color, which is convenient for the reading terminal to distinguish various two-dimensional codes and distinguish the space relationship among the two-dimensional codes.
Preferably, the three-dimensional model is a black-and-white three-dimensional model, and in step Z1, the image data in the generated two-dimensional code is generated in a predetermined format by using position and pixel point color data. The black and white three-dimensional model can rapidly obtain a black and white picture when the projection of the black and white three-dimensional model is selected, and data processing is simple when the color data of the preset point is selected. The design in the invention can reduce the calculation amount needed by the reading terminal as much as possible.
Preferably, the position and the shape of a capping area of the verification code capped on the financial document voucher are fixed in a preset mode, and the position of the capping area is provided with a preset positioning mark. The covering area is provided with a preset positioning mark as a necessary condition for calculating the spatial relationship.
Preferably, the three-dimensional model is stored with a corresponding recognition frame after being acquired, the three-dimensional model is located inside the recognition frame, the recognition frame is a cube with the same size as the cube verification code, each face of the recognition frame is provided with a two-dimensional code positioning identifier for identifying the direction, in the step S13, after the three-dimensional model rotates to the position, the step S14 is executed after hiding the recognition frame of the selected three-dimensional model, in the step Z2, the two-dimensional code positioning identifier on the recognition frame of the selected three-dimensional model and the two-dimensional code positioning identifier on the cube verification code are kept the same, and then the three-dimensional model is reset and stored. Through the mode, the two-dimensional code positioning identification can be corresponding to the three-dimensional model, so that the rotation of the three-dimensional model can correspond to the rotation of the two-dimensional code hexahedron forming the verification code, and part of information can be ingeniously hidden through the method and is not displayed in the two-dimensional code information.
Preferably, the three-dimensional model is acquired and then stored simultaneously with a corresponding recognition frame. The identification frame is not limited to the two-dimensional code identification as long as the identification frame can provide a certain space coordinate function, for example, a line segment with limited colors is adopted, the line segment has two colors, and each color corresponds to two adjacent surfaces of the corresponding verification code.
Preferably, in step S21, the verifier performs initial identification of the type of the financial document voucher by scanning the financial document voucher printed with the verification code through the reading terminal, acquires a preset position of a capping area and a position of a selection frame according to the initial identification result, performs text identification of a set position of the financial document voucher according to the position of the selection frame, performs identification of the capping area according to the position of the capping area and the shape of the capping area, acquires the capping area and the verification code printed in the capping area in the form of a projection of the cube verification code, performs color selection on the cube verification code at least twice, acquires all two-dimensional codes displayed in the projection of the cube verification code, acquires, from all two-dimensional codes, a type a two-dimensional code and a type B two-dimensional code whose display areas are larger than a set threshold, and calculates a rotation angle of the selected three-dimensional model by using the positions and colors of the acquired type a two-dimensional code and type B two-dimensional code And analyzing the A-type two-dimensional code and the B-type two-dimensional code to obtain the serial number, the position point data, the image data and the check code data of the selected three-dimensional model. Generally, the projection of the hexahedral two-dimensional code usually has two to three interviews which can be easily recognized, but it is not excluded that only one face can be easily recognized due to the rotation process, and the memory information of the second face cannot be recognized at the moment when the projection area of the other face is too small. Furthermore, since the plain code data only comprises the A-type two-dimensional code and the B-type two-dimensional code, the adjacent surface of the A-type two-dimensional code cannot be guaranteed to be the B-type two-dimensional code, and therefore the problem that only two A-type two-dimensional codes or only two B-type two-dimensional codes have a sufficiently large display area can also occur. Therefore, it is necessary to perform a part of the calculation work during printing in the present invention to ensure that the class a two-dimensional code and the class B two-dimensional code have sufficient projection areas for identification.
Preferably, in step S23, the reading terminal displays the target identification frame after the rotation angle of the three-dimensional model, the user manually rotates the three-dimensional model in the reading terminal in a constrained manner to form a corresponding projection, during the process of manually rotating the identification frame of the three-dimensional model to align with the target identification frame, during the process of manually rotating the three-dimensional model, the reading terminal starts a front camera to record the shooting of the user, after the identification frame of manually rotating the three-dimensional model aligns with the target identification frame, the position point data collection of the three-dimensional model is started, then the image data collected by the reading terminal is verified, after the image data is successfully verified, the subsequent verification code data verification is performed, and after the verification code and the image data are successfully verified, the current financial document certificate is determined to be true. According to the invention, the three-dimensional model is rotated in a manual operation mode, and the rotation data of the three-dimensional model is omitted. Therefore, the two-dimensional code as the plain code omits partial information, prevents all data from being stored in the two-dimensional code, and improves the difficulty of cracking. Furthermore, since the user necessarily needs to look at the display screen of the reading terminal in the process of rotating the three-dimensional model, a shooting mode can be adopted, and enough time is provided for recording the current operator. Furthermore, the problem of noninductive shooting can be solved, and the safety is further enhanced.
The substantial effects of the invention are as follows: the three-dimensional image used by the invention can be synchronized to different reading terminals by the anti-counterfeiting server according to the requirements so as to ensure that the authorities of different reading terminals are different, and meanwhile, the invention uses a mode of taking points of the rotation angle of the three-dimensional model, which is different from the existing encryption mode, even if a part of the reading terminals are cracked, the safety of other reading terminals can not be influenced on the basis. Furthermore, the reading terminal can be used in a region completely separated from a network, and the use requirement of national network workers in a backward communication unstable region is met. For example, when the terminal is dispatched to an unpowered area for construction, the field management personnel only need to synchronize the reading terminal and the anti-counterfeiting server before starting, so that the security of clear code data can be ensured, and the financial document voucher sent subsequently can be verified, thereby overcoming the security problem of clear code transmission in the prior art. Meanwhile, the invention adds a plurality of selection frames, the set positions of the selection frames often correspond to the key positions in the document voucher, and accordingly, the falsification of the content of the bill and the verification code as the plain code can generate conflict, so that the two can not be matched, and the judgment of the authenticity of the document voucher can not be influenced finally.
Drawings
FIG. 1 is a schematic diagram of an initial relationship between a three-dimensional model and a verification code according to the present invention;
FIG. 2 is a schematic diagram of the comparison relationship between the three-dimensional model and the verification code during rotation;
FIG. 3 is a schematic diagram of the structure of the verification code of the present invention;
FIG. 4 is a schematic structural diagram of a class A two-dimensional code obtained by a verification code in the invention;
FIG. 5 is a schematic structural diagram of a B-type two-dimensional code obtained by a verification code in the invention;
FIG. 6 is a schematic view showing the structural comparison between the recognition frame and the three-dimensional model according to the present invention;
FIG. 7 is a schematic flow chart of the main conversion step of the present invention;
FIG. 8 is a flowchart illustrating the main steps of the verification process of the present invention.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
Example 1:
the anti-counterfeiting label manufacturing and using method of the financial document voucher is matched with an anti-counterfeiting conversion system of the financial document voucher to be used, the anti-counterfeiting conversion system of the financial document voucher comprises an anti-counterfeiting server, a reading terminal and a printing terminal, the reading terminal is in communication connection with the anti-counterfeiting server, a plurality of three-dimensional model documents are set in the anti-counterfeiting server, and the three-dimensional model documents are synchronized with the reading terminal. The synchronization performed in this embodiment is not limited to complete synchronization of all contents, and the existing situations include that a huge number of three-dimensional model documents are stored in the anti-counterfeit server, a part of three-dimensional model documents in the anti-counterfeit server is synchronized by the reading terminal of the class b worker in the region a, another part of three-dimensional model documents in the anti-counterfeit server is synchronized by the reading terminal of the class c worker in the region a, the rest of three-dimensional model documents in the anti-counterfeit server is synchronized by the reading terminal of the class b worker in the region d, and all three-dimensional model documents in the anti-counterfeit server can be synchronized by a part of high-level-authority workers. By this method, the security is increased.
The reading terminal in this embodiment may be a smart phone or other code reading devices, and generally takes a smart phone as a main implementation object, and if necessary, a customized code reading device may be selected, as long as it has a reading device, a display device, a computing device and a communication device, which can be considered to be in line with the requirements. The communication device in this embodiment only needs to satisfy the requirement of wired communication. The anti-counterfeiting manufacturing and using method of the financial document voucher comprises two main steps of conversion and verification, and the main conversion step shown in the attached figure 7 comprises the following steps:
s11, the financial document voucher needing to be transmitted to the outside is read by the reading terminal, and the read content is transmitted to the anti-counterfeiting server; in this embodiment, the financial document voucher may be an internal circulation document or a legal document, and if the legal document is the legal document, the content is attached by means of an attachment page. The document voucher in the embodiment is not limited to a document or voucher, and other paper contents which need to be encrypted can be used as the document voucher. The document voucher in the embodiment is preferred to be a document voucher with a uniform format, and if a temporary document voucher without a fixed format exists or an anti-counterfeiting server with a corresponding format is not stored in the anti-counterfeiting server for initial processing, corresponding steps can be eliminated, and the position of the current document is judged in a general form, that is, the size and the direction of paper are determined when content is read.
And S12, the anti-counterfeiting server scans and identifies the content of the financial document voucher and determines the printing area of the verification code. The content identification in the embodiment is mainly divided into two types, the first is to correspond to a receipt voucher without a fixed format, to determine the size and the direction of paper when reading the content, to read the whole text according to the size and the direction of the paper, full-text storage or image storage and the like are carried out according to the requirements, secondly, document vouchers with fixed formats are correspondingly arranged, when the contents are read, directly reading the content at the preset position according to the position of the fixed format, identifying the content, storing the content in a text mode, setting the bill voucher of the fixed format as a result of pre-processing by an anti-counterfeiting server in advance, manually setting and judging the standard of the bill voucher of the fixed format in the pre-processing process, and simultaneously determining which contents of the document voucher with the fixed format are format contents and which contents are contents with variables, and setting according to the contents. Furthermore, in step S12, when the anti-counterfeit server scans and identifies the content of the financial document voucher, a plurality of selection frames are preset according to the type of the financial document voucher, and the preset content is selected to be converted into a check code according to the position of the selection frame of the scanning result, when the selection frames are preset, the set words and the number parts in the financial document voucher are selected as the preset content to be converted into the check code, wherein the content of the set words is converted into corresponding format numbers according to a list form, the number parts include Chinese capitalized numbers and arabic numbers, the Chinese capitalized numbers are converted by recognition, the arabic numbers are directly used, all the digital contents form the check code by a preset conversion mode, and the preset conversion mode is the same as or inverse to the preset conversion mode in the reading terminal; if the number of Arabic numerals is too large, the last mantissa is directly selected to be converted into the check code. Through the arrangement, another loophole of the clear code transmission is overcome, namely a counterfeiter can perform counterfeiting treatment by combining a real two-dimensional code and a false certificate during the clear code transmission. Aiming at the situation, the invention adds a plurality of selection frames, and the set positions of the selection frames often correspond to the key positions in the document voucher, such as key data, key voice and other contents. Therefore, the bill content is interfered with the clear verification code, so that the bill content and the clear verification code cannot be matched, and the authenticity judgment of the bill voucher cannot be influenced finally. The more superficial explanation is that the plain code and the document are bound through the step.
S13, the anti-counterfeiting server randomly selects a three-dimensional model and then rotates to obtain a projection image of the three-dimensional model on the screen; the three-dimensional model is a black and white three-dimensional model, the black and white three-dimensional model can quickly obtain a black and white picture when the projection of the black and white three-dimensional model is selected, and data processing is simple when the color data of the preset point is selected. The design in this embodiment can reduce the calculation amount required by the reading terminal itself as much as possible.
S14, the anti-counterfeiting server generates a plurality of position points, and part of the content in the projection image is selected to be converted into digital image data according to the position points; the specific generation method may be to directly select data in the black-and-white bitmap, that is, to directly select 01 data in the bitmap. Furthermore, the three-dimensional model may also select other color maps, and when selecting other color maps, it may be set that when selecting color data of a preset point, a certain set color is converted into 1, and other colors are converted into 0. For example, a selected 0 in the bitmap is retained, while all other color data is converted to 1; it is also possible to convert several set colors into 1 and other colors into 0. For example, it is also an alternative possibility to set monochrome to 1 and other colors to 0.
S15, the anti-counterfeiting server generates a verification code (see figure 3) according to the position point data, the image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model, and the verification code is added in the process of generating the verification code; printing on the financial document voucher through the printing terminal; the capping area position and the capping area shape of the verification code capped on the financial document voucher are both preset and fixed, and the capping area is provided with a preset positioning mark. The covering area is provided with a preset positioning mark as a necessary condition for calculating the spatial relationship.
Further, in step S15, the generating step of the verification code includes:
z1, the anti-counterfeiting server generates a two-dimensional code in a preset format according to the position point data, the image data and the number of the selected three-dimensional model, the two-dimensional code is spliced as six faces of a cube verification code to form the cube verification code with the surface being the two-dimensional code, and in the initial stage, the cube verification code is arranged in a mode that the front face is completely parallel to a screen; in step Z1, the image data in the generated two-dimensional code is generated according to a predetermined format by using position and pixel point color data. If necessary, a further technical solution is that, in the step Z1, the generated two-dimensional codes are divided into three groups of a two-dimensional codes of a type a and three groups of a two-dimensional codes of a type B, and the three groups of a two-dimensional codes of a type a and three groups of a two-dimensional codes of a type B are respectively used as six faces of the cube verification code, where the two-dimensional codes of a type a are the bottom face and two side faces of the cube verification code, the two-dimensional codes of a type B are the top face, the front face and the back face of the cube verification code, and each face in the cube verification code corresponds to one color. Each surface of the invention is provided with a color, which is convenient for the reading terminal to distinguish various two-dimensional codes and distinguish the space relationship among the two-dimensional codes. The color difference between the two-dimensional codes of each surface needs to be obvious, so that the display of the two-dimensional codes can be obtained in a simple mode of extracting homochromatic images, and the form is simpler. Generally, the projection of a hexahedral two-dimensional code often has two to three interviews that can be easily recognized, but it is not excluded that only one face can be easily recognized due to the rotation process, and the projection area of the other face is too small, at this time, the memory information of the second face cannot be recognized. Therefore, it is necessary to perform a part of the calculation work during printing in the present embodiment to ensure that the class a two-dimensional code and the class B two-dimensional code have sufficient projection areas for identification. The design of the A-type two-dimensional code and the three groups of B-type two-dimensional codes can be used for increasing the information amount, and the process of mutually combining and displaying the A-type two-dimensional code and the B-type two-dimensional code has encryption property. For example, the type a two-dimensional code itself only provides partial data information, which is meaningless to be read directly, while the type B two-dimensional code provides information such as offset, decryption, deletion, etc., and the type a two-dimensional code and the type B two-dimensional code can provide complete information, which is an optional scheme.
And Z2, the anti-counterfeiting server rotates the generated cube verification code in the same rotation mode according to the rotation angle of the selected three-dimensional model, wherein all the rotations are rotations with constraints, namely all the rotations are rotated under the condition that the center of the three-dimensional document is kept unchanged. In the step Z2, the two-dimensional code positioning identifier on the recognition frame of the selected three-dimensional model and the two-dimensional code positioning identifier on the cube verification code are kept the same, and then the three-dimensional model is reset and stored. Through the mode, the two-dimensional code positioning identification can be corresponding to the three-dimensional model, so that the rotation of the three-dimensional model can correspond to the rotation of the two-dimensional code hexahedron forming the verification code, and part of information can be ingeniously hidden through the method and is not displayed in the two-dimensional code information.
Z3, the printing terminal prints the square authentication code on the financial document voucher. The position of printing is determined by the technical content, and further, the verification code printed must be the verification code of color printing.
The main verification step (see fig. 8) includes the following steps:
s21, the verifier scans the financial document voucher printed with the verification code through the reading terminal and analyzes the financial document voucher to obtain position point data, image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model; in step S21, the verifier performs initial identification on the type of the financial document voucher when scanning the financial document voucher printed with the verification code through the reading terminal, obtains a preset position of a capping area and a position of a selection frame according to the initial identification result, performs text identification on the set position of the financial document voucher according to the position of the selection frame, performs identification on the capping area according to the position of the capping area and the shape of the capping area, obtains the verification code printed in the capping area in the form of projection of the square verification code and the capping area, performs color selection on the square verification code at least twice, and obtains all two-dimensional codes displayed in the projection of the square verification code (see fig. 4 and 5). Furthermore, if the A-type two-dimensional code and the B-type two-dimensional code exist, one A-type two-dimensional code and one B-type two-dimensional code of which the display area in the square verification code is larger than a set threshold value are obtained from all the two-dimensional codes, the rotating angle of the selected three-dimensional model is calculated according to the positions and colors of the obtained A-type two-dimensional code and the obtained B-type two-dimensional code, and the A-type two-dimensional code and the B-type two-dimensional code are analyzed to obtain the number, the position point data, the image data and the check code data of the selected three-dimensional model.
S22, selecting the corresponding three-dimensional model according to the number of the three-dimensional model by the reading terminal;
s23, correspondingly rotating according to the rotation angle of the three-dimensional model to form corresponding projection, obtaining the projected image data of the three-dimensional model by the reading terminal, selecting the data of the corresponding position in the projected image data as image verification data by the reading terminal according to the position point data, comparing the image data with the image verification data, and judging that the verification code is true, namely the financial document voucher is true when the similarity between the image data and the image verification data is greater than a threshold value, or judging that the verification code is false, namely the financial document voucher is false. In step S23, the check code is compared with the data at the corresponding position on the financial document voucher, if the comparison result is the same, the financial document voucher is determined to be true, otherwise, the financial document voucher is determined to be false.
In the technical scheme adopted by the embodiment, the used three-dimensional image can be synchronized to different reading terminals by the anti-counterfeiting server according to needs, so that different authorities of different reading terminals are ensured, meanwhile, the mode of taking points by the rotation angle of the three-dimensional model is different from the existing encryption mode in the use process of the embodiment, and even if a part of the reading terminals are cracked, the safety of other reading terminals cannot be influenced. Furthermore, the reading terminal can be used in a region completely separated from the network, and the requirement that the reading terminal is often in a backward and unstable communication region when the national network is used is met. For example, when the terminal is dispatched to a region where power is not supplied and a network is connected for construction, field management personnel only need to synchronize the reading terminal and the anti-counterfeiting server before starting, so that the security of clear data can be ensured, and the financial document voucher sent subsequently can be verified, thereby overcoming the security problem of clear transmission in the prior art.
Example 2:
this embodiment is substantially the same as embodiment 1, except that, in this embodiment,
the three-dimensional model is preserved with a corresponding recognition frame simultaneously after acquireing (see fig. 1 and fig. 2), the three-dimensional model is located the inboard of recognition frame, the recognition frame is whole to be the square with the square identifying code equidimension, every face all is provided with the two-dimensional code location sign that is used for the discernment direction on the recognition frame step S13 after the three-dimensional model rotates to the position, execution step S14 behind hiding the recognition frame of selecting the three-dimensional model, in step Z2, the three-dimensional model is preserved with a corresponding recognition frame simultaneously after acquireing. The identification frame is not limited to the two-dimensional code identification as long as the identification frame can provide a certain space coordinate function, for example, the identification frame adopts line segments with limited colors, the line segments have two colors, and each color corresponds to two adjacent surfaces of the corresponding verification code. For example, the color of the upper line of the front face recognition frame can be determined by the colors of the top face and the front face of the three-dimensional two-dimensional code. The line segment colors in the embodiment are two, the color mixing mode cannot be adopted, and the mode of interval colors can be selected only, for example, the line cup on the upper portion of the front face recognition frame is divided into a plurality of sections, the colors of any adjacent line segments in the line on the upper portion of the front face recognition frame are different inevitably, the color of one section is the top surface color of the three-dimensional two-dimensional code, and the color of the other section is the front surface color of the three-dimensional two-dimensional code.
In step S23, the reading terminal displays the target identification frame after the rotation angle of the three-dimensional model, (see fig. 6), more specifically, the target identification frame which is supposed to be formed after the reading terminal displays only the rotation angle of the three-dimensional model and does not include the internal model, the user manually rotates the three-dimensional model at the reading terminal in a constrained manner to form a corresponding projection, during the process of manually rotating the identification frame of the three-dimensional model to align with the target identification frame, during the process of manually rotating the three-dimensional model, the reading terminal starts a front camera to shoot and record the user, when the identification frame of the manually rotating the three-dimensional model aligns with the target identification frame, the position point data collection of the three-dimensional model is started, then the image data collected by the reading terminal is verified, and when the image data is successfully verified, the subsequent verification code data is verified, and when the check code and the image data are successfully verified, judging that the current financial document voucher is true. According to the invention, the three-dimensional model is rotated in a manual operation mode, and the rotation data of the three-dimensional model is omitted. Therefore, the two-dimensional code as the plain code omits partial information, and simultaneously prevents all data from being stored in the two-dimensional code, so that the cracking difficulty is improved, furthermore, because a user necessarily needs to watch the display screen of the reading terminal in the process of rotating the three-dimensional model, a shooting mode can be adopted, enough time is provided for recording a current operator, furthermore, the purpose of noninductive shooting can be achieved, and the safety is further enhanced. The non-inductive shooting of the embodiment means that the non-inductive shooting can be taken after the situation that the user authorizes the consent when the shooting is started for the first time, that is, under normal conditions, the non-inductive shooting mode can be legally adopted for recording when the user with corresponding obligations uses the reading terminal due to the first consent action, and the non-inductive shooting under the condition of the stealing can be used for recording the stealing situation.
In this embodiment, it is emphasized that the data of the rotation part is not stored in the two-dimensional code, but more options are to perform the rotation alignment manually, which means that the technical content cannot be cracked only by the two-dimensional code itself, that is, the two-dimensional code itself serves as a clear code and contains all necessary information. Therefore, it is necessary to add manual means for assistance, which results in better encryption. Meanwhile, because the screen must be viewed directly when the manual rotation operation selection is carried out, on the basis, the effect of shooting the corresponding user can be achieved by adopting the front-mounted camera for shooting. On the basis, the function of face recognition can be added, whether embezzlement exists or not is judged through the face recognition, when relevant information is stored, a normal user does not need to be stored, and shooting and obtaining can be carried out on an abnormal user, so that the image of the abnormal user is obtained.
By combining the two embodiments, the calculated amount is small, the server is not depended on, the authenticity calculation process only needs to locally rotate the three-dimensional model and identify the projected data, the design and verification do not need network support, and the network waiting and jumping process in the national network verification process is shortened. Meanwhile, in the use of the embodiment, a mode of taking points of the rotation angle of the three-dimensional model is different from the existing encryption mode, and even if a part of reading terminals are cracked, the safety of other reading terminals cannot be influenced, and certain traceability is achieved. Moreover, the method can ensure the mutual binding of the plain code and the text, and further enhance the safety, thereby being particularly suitable for the construction management of areas without power supply and network connection.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (10)
1. The method for manufacturing and using the anti-counterfeiting label of the financial document voucher is characterized by being used in cooperation with an anti-counterfeiting conversion system of the financial document voucher, wherein the anti-counterfeiting conversion system of the financial document voucher comprises an anti-counterfeiting server, a reading terminal and a printing terminal, the reading terminal is in communication connection with the anti-counterfeiting server, a plurality of three-dimensional model documents are set in the anti-counterfeiting server and are synchronized with the reading terminal, the anti-counterfeiting manufacturing and using method of the financial document voucher comprises two main steps of conversion and verification, and the main step of conversion comprises the following steps:
s11, the financial document voucher needing to be transmitted to the outside is read by the reading terminal, and the read content is transmitted to the anti-counterfeiting server;
s12, the anti-counterfeiting server scans and identifies the content of the financial document voucher and determines an authentication code printing area;
s13, the anti-counterfeiting server randomly selects a three-dimensional model and then rotates to obtain a projection image of the three-dimensional model on the screen;
s14, the anti-counterfeiting server generates a plurality of position points, and part of the content in the projection image is selected to be converted into digital image data according to the position points;
s15, the anti-counterfeiting server generates an authentication code according to the position point data, the image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model, and prints the authentication code on the financial document voucher through the printing terminal;
the main verification step comprises the following steps:
s21, the verifier scans the financial document voucher printed with the verification code through the reading terminal and analyzes the financial document voucher to obtain position point data, image data, the number of the selected three-dimensional model and the rotation angle of the selected three-dimensional model;
s22, selecting the corresponding three-dimensional model according to the number of the three-dimensional model by the reading terminal;
s23, correspondingly rotating according to the rotation angle of the three-dimensional model to form corresponding projection, obtaining the projected image data of the three-dimensional model by the reading terminal, selecting the data of the corresponding position in the projected image data as image verification data by the reading terminal according to the position point data, comparing the image data with the image verification data, and judging that the verification code is true, namely the financial document voucher is true when the similarity between the image data and the image verification data is greater than a threshold value, or judging that the verification code is false, namely the financial document voucher is false.
2. The method of claim 1, wherein the security label is a security label for a financial document, in step S12, when the anti-counterfeit server scans and identifies the content of the financial document voucher, a plurality of selection frames are preset according to the type of the financial document voucher, selecting preset contents to convert into check codes according to the position of the selection frame of the scanning result, when the selection frame is preset, selecting the setting words and the digital parts in the financial document voucher as preset contents for converting to form a check code, wherein the content of the set word is converted into corresponding format number according to the form of the list, the number part comprises Chinese character capital figures and Arabic numerals, the Chinese character capital figures are converted by identification, the Arabic numerals are directly used, all the digital content forms the check code by a preset conversion mode, the preset conversion mode is the same as or inverse to the preset conversion mode in the reading terminal;
in the step S15, a check code is added to the generation of the verification code;
in step S23, the check code is compared with the data at the corresponding position on the financial document voucher, if the comparison result is the same, the financial document voucher is determined to be true, otherwise, the financial document voucher is determined to be false.
3. The method for making and using the security label of financial document voucher as claimed in claim 2, wherein the step of generating the verification code in step S15 comprises:
z1, the anti-counterfeiting server generates a two-dimensional code in a preset format according to the position point data, the image data and the number of the selected three-dimensional model, the two-dimensional code is spliced as six faces of a cube verification code to form the cube verification code with the surface being the two-dimensional code, and in the initial stage, the cube verification code is arranged in a mode that the front face is completely parallel to a screen;
z2, the anti-counterfeiting server rotates the generated cube verification code in the same rotating mode according to the rotating angle of the selected three-dimensional model,
z3, the printing terminal prints the square authentication code on the financial document voucher.
4. The method for making and using the anti-counterfeit label of the financial document voucher in the step Z1, wherein the generated two-dimensional codes are divided into three groups of type a two-dimensional codes and three groups of type B two-dimensional codes, the three groups of type a two-dimensional codes and the three groups of type B two-dimensional codes are respectively used as six faces of a square verification code, wherein the type a two-dimensional codes are the bottom face and the two side faces of the square verification code, the type B two-dimensional codes are the top face, the front face and the back face of the square verification code, and each face of the square verification code is provided with a color.
5. The method for making and using the anti-counterfeit label of financial document voucher as claimed in claim 4, wherein in the step Z2, after the cube authentication code is rotated, the projection of the cube authentication code on the screen is printed on the financial document voucher in a color printing manner only when at least one A-type two-dimensional code and one B-type two-dimensional code exist in the area of the cube authentication code displayed on the screen, and the areas of the A-type two-dimensional code and the B-type two-dimensional code on the screen are both larger than the set threshold, otherwise, the step S13 is executed again.
6. The method for making and using the anti-counterfeit label of the financial document voucher as claimed in claim 5, wherein the three-dimensional model is black and white, and in the step Z1, the image data in the generated two-dimensional code is generated according to a predetermined format by using position and pixel point color data.
7. The method of claim 6, wherein the position and shape of the area to be applied is fixed and the area to be applied is provided with a predetermined positioning mark.
8. The method for manufacturing and using the financial document voucher anti-counterfeit label according to claim 7, wherein the three-dimensional model is obtained and then stored with a corresponding recognition frame, the three-dimensional model is located inside the recognition frame, the recognition frame is a cube with the same size as a cube verification code, each face of the recognition frame is provided with a two-dimensional code positioning identifier for identifying the direction, in step S13, after the three-dimensional model is rotated to the place, the selected three-dimensional model is hidden, and then step S14 is executed, in step Z2, the two-dimensional code positioning identifier on the selected three-dimensional model recognition frame is kept the same as the two-dimensional code positioning identifier on the cube verification code, and then the three-dimensional model is reset and stored.
9. The method of claim 8, wherein in step S21, the identifier performs an initial identification of the type of the financial document when scanning the financial document printed with the identification code through the reading terminal, obtains a preset position of the capping area and a position of the selection frame according to the result of the initial identification, performs a text identification of the set position of the financial document according to the position of the selection frame, performs an identification of the capping area according to the position of the capping area and the shape of the capping area, obtains the capping area and the identification code printed in the capping area in the form of a projection of the square identification code, performs at least two color selections on the square identification code, obtains all two-dimensional codes displayed in the projection of the square identification code, and obtains a class A two-dimensional code and a class B two-dimensional code in the square identification code, the class A two-dimensional code and the class B two-dimensional code having a display area larger than a set threshold value, among all the two-dimensional codes, calculating the rotation angle of the selected three-dimensional model according to the positions and colors of the obtained A-type two-dimensional code and the B-type two-dimensional code, analyzing the A-type two-dimensional code and the B-type two-dimensional code, and obtaining the serial number, position point data, image data and check code data of the selected three-dimensional model.
10. The method of claim 9, wherein in step S23, the reading terminal displays the target identification frame after the rotation angle of the three-dimensional model, a user manually rotates the three-dimensional model in a restrained manner at the reading terminal, so as to form a corresponding projection, reading a front camera started by a terminal in the process of manually rotating the three-dimensional model to align the recognition frame of the target, shooting and recording the user, when the identification frame of the manually rotated three-dimensional model is aligned with the target identification frame, starting the position point data collection of the three-dimensional model, then verifying the image data collected by the reading terminal, and when the image data is successfully verified, subsequent verification code data verification is carried out, and when both the verification code and the image data are successfully verified, the current financial document voucher is judged to be true.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419924.5A CN112819124B (en) | 2021-04-19 | 2021-04-19 | Method for manufacturing and using anti-counterfeit label of financial document voucher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419924.5A CN112819124B (en) | 2021-04-19 | 2021-04-19 | Method for manufacturing and using anti-counterfeit label of financial document voucher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112819124A CN112819124A (en) | 2021-05-18 |
| CN112819124B true CN112819124B (en) | 2021-06-22 |
Family
ID=75862431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110419924.5A Active CN112819124B (en) | 2021-04-19 | 2021-04-19 | Method for manufacturing and using anti-counterfeit label of financial document voucher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112819124B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106919941A (en) * | 2017-04-26 | 2017-07-04 | 华南理工大学 | A kind of three-dimensional finger vein identification method and system |
| CN107067465A (en) * | 2017-04-14 | 2017-08-18 | 深圳市唯特视科技有限公司 | A kind of 3-D view synthetic method that network is generated based on checking transition diagram picture |
| CN109754426A (en) * | 2017-11-01 | 2019-05-14 | 虹软科技股份有限公司 | A kind of method and apparatus for verifying |
| CN110458997A (en) * | 2018-05-07 | 2019-11-15 | 北京中海汇银财税服务有限公司 | A kind of method and system of automatic pinging electronic invoice |
| CN111476109A (en) * | 2020-03-18 | 2020-07-31 | 深圳中兴网信科技有限公司 | Bill processing method, bill processing apparatus, and computer-readable storage medium |
| EP3726412A1 (en) * | 2019-04-18 | 2020-10-21 | Sap Se | Selectively verifying personal data |
-
2021
- 2021-04-19 CN CN202110419924.5A patent/CN112819124B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067465A (en) * | 2017-04-14 | 2017-08-18 | 深圳市唯特视科技有限公司 | A kind of 3-D view synthetic method that network is generated based on checking transition diagram picture |
| CN106919941A (en) * | 2017-04-26 | 2017-07-04 | 华南理工大学 | A kind of three-dimensional finger vein identification method and system |
| CN109754426A (en) * | 2017-11-01 | 2019-05-14 | 虹软科技股份有限公司 | A kind of method and apparatus for verifying |
| CN110458997A (en) * | 2018-05-07 | 2019-11-15 | 北京中海汇银财税服务有限公司 | A kind of method and system of automatic pinging electronic invoice |
| EP3726412A1 (en) * | 2019-04-18 | 2020-10-21 | Sap Se | Selectively verifying personal data |
| CN111476109A (en) * | 2020-03-18 | 2020-07-31 | 深圳中兴网信科技有限公司 | Bill processing method, bill processing apparatus, and computer-readable storage medium |
Non-Patent Citations (2)
| Title |
|---|
| "Design and implementation of 3D scan conversion algorithm based on Handel-C";Yongfu Yan; Jianyang Zhou; Chunfang Zheng;《2010 International Conference on Anti-Counterfeiting, Security and Identification》;20100819;全文 * |
| "光变图像存储的实验研究";樊莉;《中国优秀博硕士学位论文全文数据库（硕士）基础科学辑》;20040615;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112819124A (en) | 2021-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4417999B2 (en) | System and method for decoding digitally encoded images | |
| US7222235B1 (en) | Image processing system utilizing digital watermarks in predetermined regions | |
| US11373265B2 (en) | Digital identification document | |
| JP6505732B2 (en) | Two-dimensional barcode and authentication method of such barcode | |
| US8320607B2 (en) | Image processing method and image processing device for embedding invisible sub information into main images | |
| US9152810B2 (en) | Information output system, method, and program for tampering detection | |
| JP2004127297A (en) | Bar code having extended visibility, system and method thereof | |
| US20150067344A1 (en) | Digital Identification Document | |
| US10957005B2 (en) | System and method for digital watermarking | |
| AU2003276864B2 (en) | Cryptographically secure person identification | |
| US10102439B2 (en) | Document verification method and system | |
| US20150063657A1 (en) | System and Method for Digitally Watermarking Digital Facial Portraits | |
| CA2865587A1 (en) | Method and apparatus for the detection of digital watermarks for instant credential authentication | |
| CN1691087B (en) | System and method for decoding digital coding image | |
| US10460163B2 (en) | System and method for digitally watermarking digital facial portraits | |
| CN112819124B (en) | Method for manufacturing and using anti-counterfeit label of financial document voucher | |
| JPWO2020166549A1 (en) | Dynamic 2D code evaluation method, dynamic 2D code evaluation system, and dynamic 2D code evaluation program | |
| CN112418371B (en) | Secure three-dimensional code for blockchains and methods of generating and decoding | |
| US11120520B2 (en) | Method for marking visuals of information for subsequent identification or authentication | |
| Mantoro et al. | Real-time printed document authentication using watermarked qr code | |
| Koltai et al. | Enhanced optical security by using information carrier digital screening | |
| JP2004070532A (en) | Personal identification medium, device for authenticating personal identification medium, and method for authenticating personal identification medium | |
| EA044006B1 (en) | METHOD OF ADDING DIGITAL MARKS INTO A DIGITAL IMAGE AND DEVICE FOR IMPLEMENTING THE METHOD | |
| KR20130029918A (en) | Authentication method using 2-dimensional code |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |