CN107092945A - The generation and recognition methods of a kind of graphic code and device - Google Patents
The generation and recognition methods of a kind of graphic code and device Download PDFInfo
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- CN107092945A CN107092945A CN201710107864.7A CN201710107864A CN107092945A CN 107092945 A CN107092945 A CN 107092945A CN 201710107864 A CN201710107864 A CN 201710107864A CN 107092945 A CN107092945 A CN 107092945A
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- 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
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- 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
- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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Abstract
The embodiments of the invention provide a kind of generation of graphic code and recognition methods and device, generation method includes：Graphic code is generated according to the graphic code information to be carried；Graphic code is printed on base material；Obtain the first image comprising graphic code and base material；Substrate feature information is obtained from the first image；Graphic code and its substrate feature information correspondence are stored, so as to during identification graphic code, recognize the true and false of graphic code.It can be seen that, after generation graphic code, correspondence storage graphic code and its substrate feature information, and, substrate feature information has uniqueness so that during graphic code is recognized, the graphic code and its substrate feature information that can be stored according to correspondence, recognize the true and false of graphic code so that graphic code has antiforge function.
Description
Technical field
The present invention relates to field of information security technology, the generation of more particularly to a kind of graphic code and recognition methods and dress
Put.
Background technology
At present, merchandise news is identified by graphic code visible everywhere in our life.With network and intelligence
Can electronic equipment popularization, consumer no longer needs specialized equipment to verify commodity, without passing through as before again
The means such as make a phone call, send short messages are verified to commodity.Only need to gently it be swept with intelligent electronic device, with regard to commodity letter can be read
Breath, and then, pass through read merchandise news and commodity are verified.
However, it does not have a false proof function with regard to graphic code itself, graphic code typically can by photograph,
Scanning etc. replicates means and carries out substantial amounts of duplication, also, the back-end data link of graphic code can also fake, then graphic code itself
Anti- pseudo problem just it is especially prominent.For the true and false of graphic code itself, consumer can not distinguish, or even businessman can not also distinguish
Not, if graphic code itself is false, the true and false of the commodity corresponding to it is difficult to differentiate.
The content of the invention
The purpose of the embodiment of the present invention is generation and recognition methods and the device for providing a kind of graphic code, to generate and know
Ju You not anti-fraud functional graphic code.Concrete technical scheme is as follows：
On the one hand, the embodiments of the invention provide a kind of generation method of graphic code, methods described includes：
Graphic code is generated according to the graphic code information to be carried；
The graphic code is printed on base material；
Obtain the first image comprising the graphic code and the base material；
Substrate feature information is obtained from described first image；
The graphic code and its substrate feature information correspondence are stored, so that during identification graphic code, identification is described
The true and false of graphic code.
Optionally, the graphic code information to be carried, including content information and security information, so that in identification graphic code
During, according to the security information, obtain content information.
Optionally, it is described the step of substrate feature information is obtained from described first image, including：
Obtain the substrate feature information of whole image of described first image；And/or,
Described first image is divided into the region of predetermined number；
Obtain the substrate feature information in randomly selected random amount region；
It is described that the graphic code and its substrate feature information are corresponded into the step of storing, including：
The substrate feature information correspondence of the graphic code and its whole image is stored；And/or,
The substrate feature information correspondence in the randomly selected random amount region of the graphic code is stored, and preserves random
The positional information in the region of selection.
Optionally, described substrate feature information is the texture information of image.
Optionally, the size of the graphic code can be recognized most for what the base material printed according to the graphic code was set
Small size.
On the one hand, the embodiments of the invention provide a kind of recognition methods of graphic code, methods described includes：
Obtain in target image, the target image comprising target base where targeted graphical code and targeted graphical code
Material；
From the target image, target substrate characteristic information is obtained；
By targeted graphical code and the target substrate characteristic information, each graphic code stored during with generation graphic code
And each corresponding substrate feature information of graphic code is matched；
When the match is successful, determine that the targeted graphical code is true.
Optionally, it is described by targeted graphical code and the target substrate characteristic information, stored during with generation graphic code
Each graphic code and the corresponding substrate feature information of each graphic code the step of matched, including：
Whether judge to generate in the graphic code stored during graphic code comprising targeted graphical code；
When judging comprising targeted graphical code, the corresponding substrate feature letter of targeted graphical code stored is judged
Whether breath is the target substrate characteristic information；Or,
Judge to generate in the substrate feature information stored during graphic code and whether include the target substrate characteristic information；
When judging to include the target substrate characteristic information, the target substrate characteristic information correspondence stored is judged
Graphic code whether be targeted graphical code.
Optionally, it is described by targeted graphical code and the target substrate characteristic information, stored during with generation graphic code
Each graphic code and the corresponding substrate feature information of each graphic code the step of matched, including：
By targeted graphical code and the target substrate characteristic information of whole image of the target image, with generation figure
The each graphic code and the substrate feature information of the corresponding whole image of each graphic code stored during code is matched；Or
According to the positional information in the randomly selected region prestored, by targeted graphical code and the target substrate feature
Information, each graphic code for storing and each graphic code corresponding randomly selected random amount area during with generation graphic code
The substrate feature information in domain is matched.
Optionally, object content information and targeted security information, the targeted security letter are included in the targeted graphical code
Breath includes trusted identity timestamp and/or digital signature information, wherein, the digital signature information adds according to target private key
It is close；
Before the determination targeted graphical code is genuine step, methods described also includes：
From targeted graphical code, the trusted identity timestamp is obtained, wherein, wrapped in the trusted identity timestamp
The formation time of the corresponding destination object of the code containing the targeted graphical；
Obtain current time；
Judge whether the formation time and the time difference of the current time are less than preset time；
When being judged as being less than, it is genuine step to perform the determination targeted graphical code；And/or
From targeted graphical code, the object content information and the digital signature information are obtained；
Obtain Target Public Key corresponding with the target private key；
The digital signature information is decrypted using the Target Public Key, first content information is obtained；
Judge whether the first content information is identical with the object content information；
When judging that the first content information is identical with the object content information, the determination target figure is performed
Shape code is genuine step.
On the other hand, the embodiments of the invention provide a kind of generating means of graphic code, described device includes：
Generation module, for generating graphic code according to the graphic code information to be carried；
Module is printed, for the graphic code to be printed on into base material；
First obtains module, for obtaining the first image comprising the graphic code and the base material；
Second obtains module, for obtaining substrate feature information from described first image；
Memory module, for the graphic code and its substrate feature information correspondence to be stored, so that in identification graphic code mistake
Cheng Zhong, recognizes the true and false of the graphic code.
Optionally, the graphic code information to be carried, including content information and security information, so that in identification graphic code
During, according to the security information, obtain content information.
Optionally, described second module is obtained, specifically for
Obtain the substrate feature information of whole image of described first image；And/or,
Described first image is divided into the region of predetermined number；
Obtain the substrate feature information in randomly selected random amount region；
The memory module, specifically for
The substrate feature information correspondence of the graphic code and its whole image is stored；And/or,
The substrate feature information correspondence in the randomly selected random amount region of the graphic code is stored, and preserves random
The positional information in the region of selection.
Optionally, described substrate feature information is the texture information of image.
Optionally, the size of the graphic code can be recognized most for what the base material printed according to the graphic code was set
Small size.
On the other hand, the embodiments of the invention provide a kind of identifying device of graphic code, described device includes：
3rd obtains module, for obtaining in target image, the target image comprising targeted graphical code and the mesh
Mark on a map target substrate where shape code；
4th obtains module, for from the target image, obtaining target substrate characteristic information；
Matching module, for by targeted graphical code and the target substrate characteristic information, being deposited during with generation graphic code
The corresponding substrate feature information of each graphic code and each graphic code of storage is matched；
Determining module, for when the match is successful, determining that the targeted graphical code is true.
Optionally, the matching module, specifically for
Whether judge to generate in the graphic code stored during graphic code comprising targeted graphical code；
When judging comprising targeted graphical code, the corresponding substrate feature letter of targeted graphical code stored is judged
Whether breath is the target substrate characteristic information；Or,
Judge to generate in the substrate feature information stored during graphic code and whether include the target substrate characteristic information；
When judging to include the target substrate characteristic information, the target substrate characteristic information correspondence stored is judged
Graphic code whether be targeted graphical code.
Optionally, the matching module, specifically for
By targeted graphical code and the target substrate characteristic information of whole image of the target image, with generation figure
The each graphic code and the substrate feature information of the corresponding whole image of each graphic code stored during code is matched；Or
According to the positional information in the randomly selected region prestored, by targeted graphical code and the target substrate feature
Information, each graphic code for storing and each graphic code corresponding randomly selected random amount area during with generation graphic code
The substrate feature information in domain is matched.
Optionally, object content information and targeted security information, the targeted security letter are included in the targeted graphical code
Breath includes trusted identity timestamp and/or digital signature information, wherein, the digital signature information adds according to target private key
It is close；
Described device also includes the 5th and obtains module, the 6th acquisition module and the first judge module；
Described 5th obtains module, for before the determination targeted graphical code is genuine step, from the mesh
Mark on a map in shape code, obtain the trusted identity timestamp, wherein, targeted graphical code is included in the trusted identity timestamp
The formation time of corresponding destination object；
Described 6th obtains module, for obtaining current time；
First judge module, for judging it is pre- whether the time difference of the formation time and the current time are less than
If the time；When being judged as being less than, the determining module is triggered；
And/or,
Described device also includes：7th obtains module, the 8th acquisition module, the 9th acquisition module and the second judge module；
Described 7th obtains module, for before the determination targeted graphical code is genuine step, from the mesh
Mark on a map shape code, obtain the object content information and the digital signature information；
Described 8th obtains module, for obtaining Target Public Key corresponding with the target private key；
Described 9th obtains module, for decrypting the digital signature information using the Target Public Key, obtains in first
Hold information；
Second judge module, for judging whether the first content information is identical with the object content information；
When judging that the first content information is identical with the object content information, the determining module is triggered.
In the embodiment of the present invention, graphic code is generated according to the graphic code information to be carried；Graphic code is printed on base material；
Obtain the first image comprising graphic code and base material；Substrate feature information is obtained from the first image；By graphic code and its base material
Characteristic information correspondence is stored, so as to during identification graphic code, recognize the true and false of graphic code.It can be seen that, after generation graphic code,
Correspondence storage graphic code and its substrate feature information, also, substrate feature information has uniqueness so that in identification graphic code
During, the graphic code and its substrate feature information that can be stored according to correspondence recognize the true and false of graphic code so that graphic code has
There is antiforge function.Certainly, any product or method for implementing the present invention it is not absolutely required to while reaching all the above
Advantage.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Figure 1A is a kind of schematic flow sheet of the generation method of graphic code provided in an embodiment of the present invention；
Figure 1B is the exemplary plot of a kind of graphic code as source code genuine piece and the graphic code as duplicate；
Fig. 1 C and Fig. 1 D are another exemplary plot of a kind of graphic code as source code genuine piece and the graphic code as duplicate；
Fig. 2 is a kind of schematic flow sheet of the recognition methods of graphic code provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of the generating means of graphic code provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of the identifying device of graphic code provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiments of the invention provide a kind of generation of graphic code and recognition methods and device, prevented with generating and recognizing to have
The graphic code of pseudo- function.
A kind of generation method of the graphic code provided first below the embodiment of the present invention is introduced.
As shown in Figure 1A, a kind of generation method for graphic code that the embodiment of the present invention is provided, may include steps of：
S101：Graphic code is generated according to the graphic code information to be carried；
Set it is understood that the generation method for the graphic code that the embodiment of the present invention is provided can apply to any electronics
Standby, the electronic equipment can be intelligent terminal or server.
In one implementation, the graphic code information to be carried, can include content information and security information, so that
Recognize during graphic code, according to security information, obtain content information.
Wherein, content information can be the numbering of destination object, link information and/or description information corresponding to graphic code
Deng the information that can arbitrarily uniquely determine destination object can the information that carried as graphic code.Wherein, the destination object
Any product, certificate and certificate that can be corresponding to graphic code etc., wherein, certificate and certificate can be electronic edition, also may be used
Think papery version.
Wherein, the security information can be the information of the encrypted formation of predetermined cryptographic algorithm, or be graphic code producer
Identity information, or be the identity information of producer etc. of the corresponding destination object of graphic code, the predetermined cryptographic algorithm can
Think CPK (Combined Public Key, Conbined public or double key) algorithm.
Graphic code in the embodiment of the present invention can be for Quick Response Code (such as：QRCode, wherein, QR full name are Quick
Response), three-dimension code etc., this is all possible, and the embodiment of the present invention is not defined to the type of graphic code.
S102：Graphic code is printed on base material；
Grating printing technique can be used, graphic code is printed on base material, wherein, it is previously mentioned in the embodiment of the present invention
Base material can be paper, plastics, metal or cortex etc., and the embodiment of the present invention is not defined to the material of base material.In addition,
In order to increase the difficulty of forgery in the embodiment of the present invention, can print graphic code is as far as possible small, certainly not to graphic code
Specific size is defined.
S103：Obtain the first image comprising graphic code and base material；
After graphic code is printed on base material, the first image comprising graphic code and base material is obtained, wherein it is possible to pass through figure
As collecting device gathers first image.Image capture device can realize such as have with any equipment that can gather image
There are the electronic equipment of camera, various industrial cameras etc., the embodiment of the present invention is not done to the type of image capture device
Limit.
S104：Substrate feature information is obtained from the first image；
In one implementation, the substrate feature information can be the texture information of image, i.e., the institute from the first image
The texture information of the base material included identified.Wherein it is possible to by the way that prior art is based on gray level co-occurrence matrixes or is based on
The Texture Segmentation Algorithm of Gray Level-Gradient Co-occurrence Matrix etc., obtains substrate feature information from the first image.
S105：Graphic code and its substrate feature information correspondence are stored, so as to during identification graphic code, recognize figure
The true and false of code.
The substrate feature information correspondence obtained by graphic code and from graphic code is stored, so that in identification graphic code process
In, the true and false of corresponding graphic code by the substrate feature information with uniqueness, can be recognized.Wherein, the graphic code with
And the substrate feature information obtained from graphic code can be stored in high in the clouds, it is stored in any non-volatile storage and sets
In standby etc., this is all possible.In the embodiment of the present invention, the base material of graphic code can be paper, metal, plastics and cortex etc.
Deng the textural characteristics of different substrate materials have significant difference, it is important to even if identical base material, for example：Same paper, every paper
Textural characteristics are also different, that is to say, that the base material textural characteristics of each graphic code are unique, and therefore, the present invention is implemented
The uniqueness that example has using substrate feature information, is capable of determining that the true and false of corresponding graphic code.
Using the embodiment of the present invention, graphic code is generated according to the graphic code information to be carried；Graphic code is printed on base material
On；Obtain the first image comprising graphic code and base material；Substrate feature information is obtained from the first image；By graphic code and its base
Material characteristic information correspondence is stored, so as to during identification graphic code, recognize the true and false of graphic code.It can be seen that, in generation graphic code
Afterwards, correspondence storage graphic code and its substrate feature information, also, substrate feature information has uniqueness so that in identification figure
During code, the graphic code and its substrate feature information that can be stored according to correspondence recognize the true and false of graphic code so that figure
Code has antiforge function.
In one implementation, it is described the step of substrate feature information (S104) is obtained from the first image, it can wrap
Include：
Obtain the substrate feature information of whole image of the first image；And/or,
First image is divided into the region of predetermined number；
Obtain the substrate feature information in randomly selected random amount region；
It is described that graphic code and its substrate feature information are corresponded into the step of storing (S105), it can include：
The substrate feature information correspondence of graphic code and its whole image is stored；And/or,
The substrate feature information correspondence in the randomly selected random amount region of graphic code is stored, and preserves random selection
Region positional information.
It is understood that it is follow-up during graphic code is recognized in order to ensure, improve the identification graphic code true and false
Accuracy, can obtain the substrate feature information of whole image of the first image, and in follow-up identification process, utilize whole figure
Matching is identified in the substrate feature information of picture, when the substrate feature information matches success of above-mentioned whole image, just determines figure
Shape code is true.
Of course for saving memory space, and identification operand when reducing follow-up identification graphic code, can only obtain with
The substrate feature information in the random amount region of machine selection, and stored.In follow-up identification process, using being stored
The substrate feature information in randomly selected random amount region matching is identified, when above-mentioned randomly selected random amount
Individual region substrate feature information matches success when, determine graphic code be it is true, it is also possible.In addition, for the base obtained
The position of material characteristic information and quantity are random, add randomness, and graphic code can be improved to a certain extent
Anti-counterfeiting performance.
Of course for the progress for ensureing follow-up identification process, the randomly selected random amount area obtained in storage
, it is necessary to which correspondence stores the positional information in randomly selected region during the substrate feature information in domain, so that in identification process, can
According to the positional information in the randomly selected region stored, it is determined that needing the position matched.
It should be noted that in one implementation, for the difficulty of the forgery that increases graphic code, the chi of the graphic code
The minimum dimension that can be recognized that the base material that the graphic code is printed according to very little is set.For example, if base material were paper, the figure
The size minimum of shape code can be 5 millimeters * 5 millimeters.When the size of the graphic code formed is less than predetermined threshold value, in order to ensure
The graphic code printed out can be identified, and can use resolution ratio for 600DPI (Dot Per Inch, pixel per inch) light
Grid printer, graphic code is printed on base material, it is preferred that the resolution ratio of raster printer can be 1200DPI.Certainly, such as
Fruit is braid, and the size needs of the graphic code are corresponding larger, as long as graphic code is printed on braid and can be identified i.e.
Can.
In this case, by can recognizing of setting of the graphic code is printed according to the size of graphic code base material
Minimum dimension, if forging, entrained information may lose in graphic code, so during identification, it is impossible to
Matched with the true graphic code of preservation, now can be defined as the graphic code forged, that is, it is puppet to determine graphic code.
In addition, after the first image comprising graphic code and the base material is obtained, can also be determined by prior art
The definition and/or noise jamming value of first image, in correspondence storage graphic code and its substrate feature information, correspondence storage institute
The definition and/or noise jamming value determined, in follow-up graphic code identification process, can further pass through graphic code
Corresponding definition and/or noise jamming value, determines the true and false of graphic code.
As shown in Figure 1B, it is a kind of example of a kind of graphic code as source code genuine piece and the graphic code as duplicate
Figure, first three image in such as Figure 1B from left to right, be followed successively by " source code genuine piece ", " duplicate 1 " and " duplicate 2 ", wherein,
" duplicate 1 " is the duplicate of " source code genuine piece ", and " duplicate 2 " is " duplicate of duplicate 1 ".Can by above-mentioned three images
Know, the duplicate for the rear gained that graphic code is replicated has the reduction of definition, the increased situation of noise jamming value.In identification
During, can be by the corresponding definition of graphic code and/or noise jamming value, whether identify graphic code is true.
As shown in Figure 1 C be as " source code genuine piece " graphic code a kind of exemplary plot, as shown in figure iD for be used as " duplication
A kind of exemplary plot of the graphic code of product ", wherein, " duplicate " shown in Fig. 1 D is the duplicate of " source code genuine piece " shown in Fig. 1 C, by
Knowable to above-mentioned image, the phenomenon of the loss of the duplicate existence information for the rear gained that graphic code is replicated, when matching graphic code,
The matching of graphic code can directly be passed through, you can whether identify graphic code is true.
On the other hand, the embodiment of the present invention additionally provides a kind of recognition methods of graphic code, as shown in Fig. 2 can include
Following steps：
S201：Obtain in target image, target image comprising target substrate where targeted graphical code and targeted graphical code；
It is understood that the recognition methods for the graphic code that the embodiment of the present invention is provided, can apply to it is any can
The electronic equipment of target image is obtained, the electronic equipment can be intelligent terminal, or server, etc., this is all can
With.When the recognition methods for the graphic code that the embodiment of the present invention is provided is applied to intelligent terminal, the intelligent terminal can be made
Target image, and the rear afterflow of the recognition methods for target image execution graphic code are directly collected for image capture device
Journey.When the method for anti-counterfeit for the graphic code that the embodiment of the present invention is provided is applied to server, image capture device will be gathered
Target image send to server, server performs the rear afterflow of the recognition methods of graphic code for obtained target image
Journey.This is all possible.
S202：From target image, target substrate characteristic information is obtained；
The target substrate characteristic information can be texture information of image etc., be the mesh obtained from target image
Mark the texture information of base material.It should be noted that each equal Existence and uniquenss of substrate feature information.Furthermore it is possible to by existing
Technology obtains target substrate characteristic information from target image.
S203：By targeted graphical code and target substrate characteristic information, during with generation graphic code each graphic code for storing with
And each corresponding substrate feature information of graphic code is matched；
This case that may be used for graphic code by fraudulent copying, it is to be understood that each graphic code is both needed to carry
Body (i.e. base material) is carried, for example：Printed or marking is on any type of base material.Each graphic code one base of unique correspondence
Material, the substrate feature information Existence and uniquenss corresponding to each graphic code, utilizes the substrate feature information corresponding to graphic code
Uniqueness, can be with the true and false of proof diagram shape code.When the recognition methods for the graphic code that the embodiment of the present invention is provided is applied to intelligence
During terminal, the corresponding substrate feature information of each graphic code and each graphic code stored during the generation graphic code can be pre-
Be stored in the intelligent terminal, now, to being obtained targeted graphical code be identified when, the intelligent terminal can directly from
In target image, target substrate characteristic information is obtained, then by the target substrate characteristic information and targeted graphical that are obtained code, with
The corresponding substrate feature information of each graphic code and each graphic code that intelligent terminal prestores is matched, according to matching result
Determine whether targeted graphical code is true.
In addition, the memory space in order to save intelligent terminal, the graphic code and the corresponding substrate feature of each graphic code
Information is stored in server or high in the clouds, now, and when targeted graphical code is identified, the intelligent terminal is visited
Server or high in the clouds are asked, is believed with obtaining each graphic code stored during generation graphic code and the corresponding feature of each graphic code
Breath, and follow-up matching flow is carried out, this is all possible.
When the recognition methods for the graphic code that the embodiment of the present invention is provided is applied to server, deposited during the generation graphic code
The corresponding substrate feature information of each graphic code and each graphic code of storage can be pre-stored in server, and server is schemed
As the target image that collecting device is gathered, i.e., the identification process of graphic code is performed for target image.
By targeted graphical code and target substrate characteristic information, each graphic code for storing and every during with generation graphic code
When the corresponding substrate feature information of individual graphic code is matched, graphic code can be first matched, substrate feature letter can also be first matched
Breath, this is all possible.It is in one implementation, described by targeted graphical code and the target substrate characteristic information,
Each graphic code for storing and the corresponding substrate feature information of each graphic code are matched (S203) during with generation graphic code
The step of, it can include：
Whether judge to generate in the graphic code stored during graphic code comprising targeted graphical code；
When judging comprising targeted graphical code, judge the corresponding substrate feature information of stored targeted graphical code whether be
Target substrate characteristic information；Or,
Judge to generate in the substrate feature information stored during graphic code and whether include target substrate characteristic information；
When judging to include target substrate characteristic information, the stored corresponding graphic code of target substrate characteristic information is judged
Whether it is targeted graphical code.
It is emphasized that can be first by targeted graphical code with generation graphic code when the graphic code progress that is stored one by one
Match somebody with somebody, judge to generate whether comprising targeted graphical code in the graphic code stored during graphic code, when in the graphic code for judging to prestore
During comprising targeted graphical code, continuation judges whether the corresponding substrate feature information of targeted graphical code is target substrate characteristic information,
When being judged as YES, then it may indicate that the match is successful, conversely, then showing that it fails to match.In addition, when judging generation graphic code
Do not also indicate that it fails to match comprising targeted graphical code in the graphic code stored.
Furthermore it is also possible to which each graphic code for being stored is corresponding during first by target substrate characteristic information with generation graphic code
Substrate feature information is matched one by one, judges the corresponding substrate feature information of each graphic code stored during generation graphic code
In whether include target substrate characteristic information, when judging to generate graphic code, the corresponding base material of each graphic code for being stored is special
When including target signature information in reference breath, continue to judge that the target substrate characteristic information stored during generation graphic code is corresponding
Whether graphic code is targeted graphical code, when being judged as YES, then may indicate that the match is successful, conversely, then showing that it fails to match.Separately
Outside, do not believe in the corresponding substrate feature information of each graphic code stored when generating graphic code comprising target substrate feature
Breath, also indicates that it fails to match.
S204：When the match is successful, determine that targeted graphical code is true.
In addition, when it fails to match, then it is puppet that can determine targeted graphical code.
Using the embodiment of the present invention, obtain in target image, target image comprising targeted graphical code and targeted graphical code
Place target substrate；From target image, target substrate characteristic information is obtained；By targeted graphical code and target substrate feature letter
Breath, each graphic code for storing and the corresponding substrate feature information of each graphic code are matched during with generation graphic code；When
When the match is successful, determine that targeted graphical code is true.The characteristic information Existence and uniquenss of base material where graphic code, graphic code can be by
Replicate, and the characteristic information of base material is really difficult to be replicated, it is seen then that by the target of base material where targeted graphical code and targeted graphical code
Characteristic information, each graphic code for storing and the corresponding substrate feature information of each graphic code are carried out during with generation graphic code
Match somebody with somebody, it may be determined that go out whether targeted graphical code is true so that graphic code has antiforge function.
It is understood that this case that may be used for graphic code by fraudulent copying, except figure can be utilized
Code and the corresponding substrate feature information of graphic code, to recognize the true and false of graphic code, can also be come by the definition of graphic code
Recognize the true and false of graphic code.In one implementation, after target image is obtained, the target of target image can also be obtained
Definition；Then, according to targeted graphical code, the targeted graphical code stored during by target sharpness with generation graphic code is corresponding clear
Clear degree is matched；When the match is successful, determine that targeted graphical code is true；When matching unsuccessful, adopted in order to avoid appearing in
Acquisition condition is not good (such as when collecting target image：Acquisition angles are bad, collection when light it is bad etc.) etc. factor, can continue from
In target image, target substrate characteristic information is obtained, the identification process of follow-up graphic code is carried out.Or, it is determined that matching is lost
When losing, it is puppet directly to determine targeted graphical code, also possible.
It should be noted that when graphic code is replicated, the definition that the graphic code obtained by replicating must occur is used for
The low situation of the definition of the graphic code of true form.After graphic code is printed on base material, it can be adopted by graph capture device
Collect the image including at least graphic code and base material, the definition of gathered image is determined and recorded by prior art.Subsequently
, when needing identification graphic code, the target for including the targeted graphical code for needing to recognize can be gathered by graph capture device
Image, the target sharpness of gathered target image is determined by prior art.First by targeted graphical code and generation graphic code
When each graphic code for storing matched, when it is determined that comprising targeted graphical code in the graphic code stored during with generation graphic code
When, the definition corresponding to targeted graphical code stored during by target sharpness with generation graphic code is matched, and works as target
The absolute value of the difference of the definition corresponding to targeted graphical code stored when definition and generation graphic code, no more than presets threshold
Value, it is determined that the match is successful, further, determines that targeted graphical code is true.
In one implementation, it is described by targeted graphical code and target substrate characteristic information, deposited during with generation graphic code
The step of corresponding substrate feature information of each graphic code and each graphic code of storage is matched (S203), can include：
By targeted graphical code and the target substrate characteristic information of whole image of target image, stored during with generation graphic code
Each graphic code and the substrate feature information of the corresponding whole image of each graphic code matched；Or
According to the positional information in the randomly selected region prestored, by targeted graphical code and target substrate characteristic information, with
The each graphic code and the base in the corresponding randomly selected random amount region of each graphic code stored during generation graphic code
Material characteristic information is matched.
It is understood that the substrate feature information of each graphic code storage of correspondence is each figure when generating graphic code
The substrate feature information of the corresponding whole image of code, or, can be by mesh when higher to the accuracy requirement of the identification of graphic code
Mark on a map shape code and target image whole image target substrate characteristic information, each graphic code for storing during with generation graphic code
And the substrate feature information of the corresponding whole image of each graphic code is matched.The each figure of correspondence when generating graphic code
The substrate feature information of code storage is the substrate feature information in the corresponding randomly selected random amount region of each graphic code,
Or, it is relatively low to the accuracy requirement of the identification of graphic code, or to recognize graphic code efficiency requirement it is higher when, Ke Yigen
According to the positional information in the randomly selected region prestored, by targeted graphical code and target substrate characteristic information, with generation graphic code
When each graphic code for storing and the corresponding randomly selected random amount region of each graphic code substrate feature information
Matched.
In one implementation, object content information and targeted security information are included in the targeted graphical code, it is described
Targeted security information includes trusted identity timestamp and/or digital signature information, wherein, digital signature information is private according to target
Key is encrypted；
Before the step of determination targeted graphical code is true (S204), methods described can also include：
From targeted graphical code, trusted identity timestamp is obtained, wherein, targeted graphical code is included in trusted identity timestamp
The formation time of corresponding destination object；
Obtain current time；
Judge whether form time and the time difference of current time is less than preset time；
When being judged as being less than, S204 is performed；And/or
From targeted graphical code, object content information and digital signature information are obtained；
Obtain Target Public Key corresponding with target private key；
The digital signature information is decrypted using Target Public Key, first content information is obtained；
Judge whether first content information is identical with object content information；
When judging that first content information is identical with object content information, S204 is performed.
Graphic code can have the shelf-life as a kind of anti-counterfeiting information of commodity, some commodity, in order to preferably protect
The security of commodity is demonstrate,proved, graphic code can be configured to be effective in the given time, be true, be more than after the scheduled time
It is invalid, it is puppet.By whether before the deadline to determine graphic code, determine whether graphic code is true.I.e. can be credible by contrasting
The formation time and the time difference of current time of the corresponding destination object of targeted graphical code included in identity timestamp, it is determined that
Whether before the deadline graphic code, further, determines whether graphic code is true.
In addition, the formation time of the corresponding destination object of targeted graphical code can be：The corresponding product of targeted graphical code
Production time, or be the generation time of the corresponding certificate of targeted graphical code, certificate etc., etc., this is all possible.
In order to which the information for preventing graphic code from being included is tampered, graphic code can be passed through during graphic code is recognized
In it is entrained according to the digital signature information of target private key encryption, recognize the true and false of graphic code.Add using with target private key
Close corresponding Target Public Key decryption digital signature information, obtains first content information, when the first content information obtained with
When entrained object content information is identical in targeted graphical code, then shows that targeted graphical code is not tampered with, then can determine
Targeted graphical code is true.
In addition, it is determined that targeted graphical code be very after, can show that the content that obtain is believed from targeted graphical code to user
Breath.This is all possible.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of generating means of graphic code, such as Fig. 3 institutes
Show, described device can include：
Generation module 310, for generating graphic code according to the graphic code information to be carried；
Module 320 is printed, for the graphic code to be printed on into base material；
First obtains module 330, for obtaining the first image comprising the graphic code and the base material；
Second obtains module 340, for obtaining substrate feature information from described first image；
Memory module 350, for the graphic code and its substrate feature information correspondence to be stored, so that in identification graphic code
During, recognize the true and false of the graphic code.
Using the embodiment of the present invention, graphic code is generated according to the graphic code information to be carried；Graphic code is printed on base material
On；Obtain the first image comprising graphic code and base material；Substrate feature information is obtained from the first image；By graphic code and its base
Material characteristic information correspondence is stored, so as to during identification graphic code, recognize the true and false of graphic code.It can be seen that, in generation graphic code
Afterwards, correspondence storage graphic code and its substrate feature information, also, substrate feature information has uniqueness so that in identification figure
During code, the graphic code and its substrate feature information that can be stored according to correspondence recognize the true and false of graphic code so that figure
Code has antiforge function.
In one implementation, the graphic code information to be carried, including content information and security information, so that
Recognize during graphic code, according to the security information, obtain content information.
In one implementation, described second module 340 is obtained, specifically for
Obtain the substrate feature information of whole image of described first image；And/or,
Described first image is divided into the region of predetermined number；
Obtain the substrate feature information in randomly selected random amount region；
The memory module 350, specifically for
The substrate feature information correspondence of the graphic code and its whole image is stored；And/or,
The substrate feature information correspondence in the randomly selected random amount region of the graphic code is stored, and preserves random
The positional information in the region of selection.
In one implementation, described substrate feature information is the texture information of image.
In one implementation, the size of the graphic code is the energy for the base material setting printed according to the graphic code
The minimum dimension enough recognized.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of identifying device of graphic code, such as Fig. 4 institutes
Show, described device can include：
3rd obtains module 410, targeted graphical code is included in target image, the target image and described for obtaining
Target substrate where targeted graphical code；
4th obtains module 420, for from the target image, obtaining target substrate characteristic information；
Matching module 430, for by targeted graphical code and the target substrate characteristic information, with generating during graphic code
The corresponding substrate feature information of each graphic code and each graphic code of storage is matched；
Determining module 440, for when the match is successful, determining that the targeted graphical code is true.
Using the embodiment of the present invention, obtain in target image, target image comprising targeted graphical code and targeted graphical code
Place target substrate；From target image, target substrate characteristic information is obtained；By targeted graphical code and target substrate feature letter
Breath, each graphic code for storing and the corresponding substrate feature information of each graphic code are matched during with generation graphic code；When
When the match is successful, determine that targeted graphical code is true.The characteristic information Existence and uniquenss of base material where graphic code, graphic code can be by
Replicate, and the characteristic information of base material is really difficult to be replicated, it is seen then that by the target of base material where targeted graphical code and targeted graphical code
Characteristic information, each graphic code for storing and the corresponding substrate feature information of each graphic code are carried out during with generation graphic code
Match somebody with somebody, it may be determined that go out whether targeted graphical code is true so that graphic code has antiforge function.
In one implementation, the matching module 430, specifically for
Whether judge to generate in the graphic code stored during graphic code comprising targeted graphical code；
When judging comprising targeted graphical code, the corresponding substrate feature letter of targeted graphical code stored is judged
Whether breath is the target substrate characteristic information；Or,
Judge to generate in the substrate feature information stored during graphic code and whether include the target substrate characteristic information；
When judging to include the target substrate characteristic information, the target substrate characteristic information correspondence stored is judged
Graphic code whether be targeted graphical code.
In one implementation, the matching module 430, specifically for
By targeted graphical code and the target substrate characteristic information of whole image of the target image, with generation figure
The each graphic code and the substrate feature information of the corresponding whole image of each graphic code stored during code is matched；Or
According to the positional information in the randomly selected region prestored, by targeted graphical code and the target substrate feature
Information, each graphic code for storing and each graphic code corresponding randomly selected random amount area during with generation graphic code
The substrate feature information in domain is matched.
In one implementation, object content information and targeted security information are included in the targeted graphical code, it is described
Targeted security information includes trusted identity timestamp and/or digital signature information, wherein, the digital signature information is according to mesh
Mark private key encryption；
Described device can also include the 5th and obtain module, the 6th acquisition module and the first judge module；
Described 5th obtains module, for before the determination targeted graphical code is genuine step, from the mesh
Mark on a map in shape code, obtain the trusted identity timestamp, wherein, targeted graphical code is included in the trusted identity timestamp
The formation time of corresponding destination object；
Described 6th obtains module, for obtaining current time；
First judge module, for judging it is pre- whether the time difference of the formation time and the current time are less than
If the time；When being judged as being less than, the determining module 440 is triggered；
And/or,
Described device can also include：7th acquisition module, the 8th acquisition module, the 9th acquisition module and second judge mould
Block；
Described 7th obtains module, for before the determination targeted graphical code is genuine step, from the mesh
Mark on a map shape code, obtain the object content information and the digital signature information；
Described 8th obtains module, for obtaining Target Public Key corresponding with the target private key；
Described 9th obtains module, for decrypting the digital signature information using the Target Public Key, obtains in first
Hold information；
Second judge module, for judging whether the first content information is identical with the object content information；
When judging that the first content information is identical with the object content information, the determining module 440 is triggered.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Each embodiment in this specification is described by the way of related, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.It is real especially for system
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of generation method of graphic code, it is characterised in that methods described includes：
Graphic code is generated according to the graphic code information to be carried；
The graphic code is printed on base material；
Obtain the first image comprising the graphic code and the base material；
Substrate feature information is obtained from described first image；
The graphic code and its substrate feature information correspondence are stored, so as to during identification graphic code, recognize the figure
The true and false of code.
2. according to the method described in claim 1, it is characterised in that
The graphic code information to be carried, including content information and security information, so that during identification graphic code, according to
The security information, obtains content information.
3. according to the method described in claim 1, it is characterised in that described that substrate feature information is obtained from described first image
The step of, including：
Obtain the substrate feature information of whole image of described first image；And/or,
Described first image is divided into the region of predetermined number；
Obtain the substrate feature information in randomly selected random amount region；
It is described that the graphic code and its substrate feature information are corresponded into the step of storing, including：
The substrate feature information correspondence of the graphic code and its whole image is stored；And/or,
The substrate feature information correspondence in the randomly selected random amount region of the graphic code is stored, and preserves random selection
Region positional information.
4. the method according to claim any one of 1-3, it is characterised in that described substrate feature information is the line of image
Manage information.
5. the method according to claim any one of 1-3, it is characterised in that the size of the graphic code is according to the figure
The minimum dimension that can be recognized that the base material that shape code is printed is set.
6. a kind of recognition methods of graphic code, it is characterised in that methods described includes：
Obtain in target image, the target image comprising target substrate where targeted graphical code and targeted graphical code；
From the target image, target substrate characteristic information is obtained；
By targeted graphical code and the target substrate characteristic information, during with generation graphic code each graphic code for storing and
Each corresponding substrate feature information of graphic code is matched；
When the match is successful, determine that the targeted graphical code is true.
7. method according to claim 6, it is characterised in that described that targeted graphical code and the target substrate is special
Reference is ceased, and each graphic code for storing and the corresponding substrate feature information of each graphic code are matched during with generation graphic code
The step of, including：
Whether judge to generate in the graphic code stored during graphic code comprising targeted graphical code；
When judging comprising targeted graphical code, judge that the corresponding substrate feature information of the targeted graphical stored code is
No is the target substrate characteristic information；Or,
Judge to generate in the substrate feature information stored during graphic code and whether include the target substrate characteristic information；
When judging to include the target substrate characteristic information, the corresponding figure of the target substrate characteristic information stored is judged
Whether shape code is the targeted graphical code.
8. method according to claim 6, it is characterised in that described that targeted graphical code and the target substrate is special
Reference is ceased, and each graphic code for storing and the corresponding substrate feature information of each graphic code are matched during with generation graphic code
The step of, including：
By targeted graphical code and the target substrate characteristic information of whole image of the target image, during with generation graphic code
The substrate feature information of the corresponding whole image of each graphic code and each graphic code of storage is matched；Or
According to the positional information in the randomly selected region prestored, targeted graphical code and the target substrate feature are believed
Breath, each graphic code for storing and each graphic code corresponding randomly selected random amount region during with generation graphic code
Substrate feature information matched.
9. the method according to claim any one of 6-8, it is characterised in that include object content in the targeted graphical code
Information and targeted security information, the targeted security information include trusted identity timestamp and/or digital signature information, wherein,
The digital signature information is according to target private key encryption；
Before the determination targeted graphical code is genuine step, methods described also includes：
From targeted graphical code, the trusted identity timestamp is obtained, wherein, institute is included in the trusted identity timestamp
State the formation time of the corresponding destination object of targeted graphical code；
Obtain current time；
Judge whether the formation time and the time difference of the current time are less than preset time；
When being judged as being less than, it is genuine step to perform the determination targeted graphical code；And/or
From targeted graphical code, the object content information and the digital signature information are obtained；
Obtain Target Public Key corresponding with the target private key；
The digital signature information is decrypted using the Target Public Key, first content information is obtained；
Judge whether the first content information is identical with the object content information；
When judging that the first content information is identical with the object content information, the determination targeted graphical code is performed
For genuine step.
10. a kind of generating means of graphic code, it is characterised in that described device includes：
Generation module, for generating graphic code according to the graphic code information to be carried；
Module is printed, for the graphic code to be printed on into base material；
First obtains module, for obtaining the first image comprising the graphic code and the base material；
Second obtains module, for obtaining substrate feature information from described first image；
Memory module, for the graphic code and its substrate feature information correspondence to be stored, so that during identification graphic code,
Recognize the true and false of the graphic code.
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