CN108269350A - The verification method and device of seal - Google Patents
The verification method and device of seal Download PDFInfo
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- CN108269350A CN108269350A CN201611251052.1A CN201611251052A CN108269350A CN 108269350 A CN108269350 A CN 108269350A CN 201611251052 A CN201611251052 A CN 201611251052A CN 108269350 A CN108269350 A CN 108269350A
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- seal
- length
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/02—Testing electrical properties of the materials thereof
- G07D7/026—Testing electrical properties of the materials thereof using capacitive sensors
Abstract
The present invention provides the verification methods and device of a kind of seal.Wherein, this method comprises the following steps：Obtaining step, obtains the characteristic point and number of seal to be verified, and characteristic point is at least three；Identification step, identifies convex polygon and the extraction length of side value on each side of convex polygon and the angle of each interior angle that each characteristic point formed, and using each length of side value and each angle as the feature of seal；The feature of seal to be verified and number with pre-stored seal feature and number are compared, if comparing result meets preset requirement, judge that seal to be verified is verified by determination step.The verification method of seal provided by the invention can realize the feature of automatic identification seal to be verified and number and judge whether seal to be verified matches with specified services, and the process of verification is more convenient reliable, and construction cost is lower.
Description
Technical field
The present invention relates to seal verification technique field, in particular to the verification method and device of a kind of seal.
Background technology
In recent years, with the progress of display screen technology, first there are the touch screen technologies such as touch screens, capacitance plate, especially
The capacitive screens that mobile phone carries are widely applied.There is the multiple point touching technology of screen subsequently, based on capacitance plate, pass through
The touch of the finger of people on the screen identifies the gesture of finger, can realize picture scaling, sound adjusting, focusing etc. of taking pictures.
Multiple point touching seal with multi-touch function forms one group with specific by simulating the multiple point touching of finger
The touch point of geometrical relationship, and using the geometrical relationship of this group of touch point as a kind of signature identification, it is a kind of unique so as to be formed
Identification technology.Meanwhile this touch material for forming touch point is fixed up in the form of traditional seal, ensure geometrical relationship
It will not change after formation.
Multiple point touching technology all brings great convenience to live and work, but is rarely used in the mark of specific identity,
I.e. by binding flow of the specific function for the original program of simplification to seal.Such as when examining bill, traditional papery ticket
According to not only wasting paper, but also print paper bill needs other auxiliary tools such as printing device, cumbersome, be unfavorable for saving
About；And for electronic bills such as Quick Response Codes, then Quick Response Code surface sweeping equipment is needed, construction cost is excessively high.
Invention content
In consideration of it, the present invention proposes the verification method and device of a kind of seal, it is intended to it is authenticated to solve current stamped signature etc.
The problem of verification process caused by journey needs paper-bill and other ancillary equipments is cumbersome, waste.
On one side, the present invention proposes a kind of verification method of seal.This method comprises the following steps：Obtaining step,
The characteristic point and number of seal to be verified are obtained, characteristic point is at least three；Identification step identifies that each characteristic point is formed convex
Polygon and the extraction length of side value on each side of the convex polygon and angle of each interior angle, and by each length of side value and each angle
Feature as seal to be verified；Determination step, by the feature of seal to be verified and number with pre-stored seal feature and
Number compares, if comparing result meets preset requirement, judges that seal to be verified is verified.
Further, in the verification method of above-mentioned seal, determination step further comprises：If comparing result is unsatisfactory for pre-
If it is required that then judge that seal verification to be verified does not pass through.
Further, in the verification method of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle further comprise following steps：It, then will most short side or most when most short side in each side or longest edge length of side value are without repeating
Long side has been used as initial line, extracts the length of side value on each side and the angle of each interior angle successively.
Further, in the verification method of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle still further comprise following steps：When most short side or longest edge length of side value duplicate, then by secondary short side or vice-minister
Side has been used as initial line, extracts the length of side value on each side and the angle of each interior angle successively.
Further, in the verification method of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle still further comprise following steps：It is when the length of side value on each side duplicates, then number of repetition is minimum and most short
Side be used as initial line, extract the length of side value on each side and the angle of each interior angle successively.
The present invention is by obtaining the characteristic point of seal to be verified, you can extracts what multiple characteristic points of seal to be verified were formed
Each length of side value of convex polygon and each angle, and using each length of side value and each angle as the feature of seal to be verified, in addition, may be used also
It is uniquely numbered with obtaining seal to be verified.By the feature of seal to be verified and number and the pre-stored seal of specified services institute
Feature and number compare, you can verify whether seal to be verified matches with specified services.Automatic identification seal to be verified
Feature and number simultaneously judge whether seal to be verified matches with specified services, save labour, improve work efficiency, together
When, it also reduces to use and manually treats whether verification seal matches the error rate judged with specified services.
On the other hand, the invention also provides a kind of verification devices of seal.The device includes：Acquisition module, identification mould
Block and determination module；Wherein, acquisition module is used to obtain the characteristic point and number of seal to be verified, and characteristic point is at least three；
Identification module is used to identifying the length of side value of the convex polygon that each characteristic point formed and each side for extracting convex polygon and each
The angle of a interior angle, and using each length of side value and each angle as the feature of seal to be verified；Determination module is used for print to be verified
The feature and number of chapter compare with pre-stored seal feature and number, if comparing result meets preset requirement, sentence
Fixed seal to be verified is verified.
Further, in the verification device of above-mentioned seal, determination module is additionally operable to：If comparing result is unsatisfactory for default want
It asks, then judges that seal verification to be verified does not pass through.
Further, in the verification device of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle include：When most short side in each side or longest edge length of side value are without repeating, then most short side or longest edge have been regard as initial line,
The length of side value on each side and the angle of each interior angle are extracted successively.
Further, in the verification device of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle further include：When most short side or longest edge length of side value duplicate, then using secondary short side or secondary long side as playing an initial line, according to
The length of side value on secondary each side of extraction and the angle of each interior angle.
Further, in the verification device of above-mentioned seal, the length of side value on each side of convex polygon and each interior angle are extracted
Angle further include：When the length of side value on each side duplicates, then number of repetition is minimum and shortest side as an initial line,
The length of side value on each side and the angle of each interior angle are extracted successively.
The present invention first obtain the characteristic point of seal to be verified, then extract seal to be verified multiple characteristic points form it is convex more
Each length of side value of side shape and each angle, and using each length of side value and each angle as the feature of seal to be verified, further, it is also possible to obtain
Seal to be verified is taken uniquely to number.By the feature of seal to be verified and number with specified services pre-stored seal spy
Number of seeking peace compares, you can verifies whether seal to be verified matches with specified services.Compared with traditional paper-bill, automatically
It identifies the feature of seal to be verified and number and judges seal to be verified and the whether matched function of specified services, ticket can be saved
According to paper and its printing device, using upper more economical, environmental protection, the process of verification is also more convenient reliable；And with Quick Response Code etc.
Electronic bill is compared, then can save two-dimensional code scanning device, and construction cost is lower.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the flow chart of the verification method of seal of the embodiment of the present invention；
Fig. 2 is the structure diagram of seal in the verification method of seal of the embodiment of the present invention；
Fig. 3 is the structure diagram of the verification device of seal of the embodiment of the present invention.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment of the method：
Referring to Fig. 1, Fig. 1 is the flow chart of the verification method of seal provided in an embodiment of the present invention.As shown in the figure, this method
Include the following steps：
Obtaining step S1, obtains the characteristic point and number of seal to be verified, and characteristic point is at least three.
Specifically, referring to Fig. 2, the plane 1 of seal to be verified and it can be embedded in multiple spies being made of an electrically conducting material in vivo
Sign point 2, to simulate the touch of finger, since the method that the seal to be verified with characteristic point is made of conductive material is ability
Well known to field technique personnel, therefore do not repeat.In addition, number is also pasted or is carved on the surface of seal to be verified.When it is implemented, it treats
The plane 1 for verifying seal can be rectangle, or square, specific shape can determine according to actual needs,
The present embodiment does not do it any restriction.The number of seal to be verified can be the number manually distinguished.When seal to be verified
When plane 1 is in contact with capacitive screens, capacitive screens obtain the characteristic point 2 and number of seal to be verified simultaneously, wherein, it is special
Sign point 2 is at least three.
Identification step S2, identify convex polygon that each characteristic point formed and extraction convex polygon it is each while while
The angle of long value and each interior angle, and using each length of side value and each angle as the feature of seal seal to be verified.
Specifically, multiple characteristic points of seal to be verified may be constructed convex polygon, number and the characteristic point structure of characteristic point
Into convex polygon side number it is equal.It identifies the convex polygon that each characteristic point is formed, and extracts the convex polygon
The length of side value on each side and the angle of each interior angle.Using each length of side value of convex polygon and the angle of each interior angle as print to be verified
The feature of chapter.When it is implemented, the direction of convex polygon can be any direction.The length of side value of the most short side of convex polygon should be big
In the minimum identification distance equal to capacitive screens point-to-point transmission.
Determination step S3 compares the feature of seal to be verified and number with pre-stored seal feature and number,
If comparing result meets preset requirement, judge that seal to be verified is verified.
Specifically, by the feature of seal to be verified and number with specified services pre-stored seal feature and number
It compares, if comparing result meets preset requirement, judges that seal to be verified is verified.For example, seal to be verified is each
Deviation between length of side value, corresponding each length of side value of each angle and pre-stored seal, each angle is less than or equal to 3%,
And when numbering identical with the number of pre-stored seal of seal to be verified, then judge that seal to be verified is verified.Such as
Fruit comparing result is unsatisfactory for preset requirement, then judges that seal verification to be verified does not pass through.For example, each length of side of seal to be verified
Deviation between value, corresponding each length of side value of each angle and pre-stored seal, each angle is more than 3% and/or to be tested
When numbering different from the number of pre-stored seal of seal is demonstrate,proved, then judges that seal verification to be verified does not pass through.Specific implementation
When, pre-stored seal can be one, or multiple.When pre-stored seal is multiple, then print to be verified
Chapter is also multiple and equal with pre-stored seal number.When being compared, each seal to be verified should with it is each pre-stored
Seal is compared one by one.It should be noted that preset requirement can be determined according to the quality of the plane 1 of seal to be verified,
The present embodiment does not do it any restriction.
In the present embodiment, by the characteristic point for obtaining seal to be verified, you can extract multiple characteristic points of seal to be verified
Each length of side value of the convex polygon of composition and each angle, and using each length of side value and each angle as the feature of seal to be verified, this
Outside, seal to be verified can also be obtained uniquely to number.The feature of seal to be verified and number are deposited in advance with specified services
The feature and number of the seal of storage compare, you can verify whether seal to be verified matches with specified services.With traditional papery
Bill is compared, and the feature and number of automatic identification seal to be verified simultaneously judge seal to be verified and the whether matched work(of specified services
Can, bill paper and its printing device can be saved, using upper more economical, environmental protection, the process of verification is also more convenient can
It leans on；And compared with the electronic bills such as Quick Response Code, then two-dimensional code scanning device can be saved, construction cost is lower.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle further comprise as
Lower step：
When most short side in each side or longest edge length of side value are without repeating, then most short side or longest edge have been regard as initial line, according to
The length of side value on secondary each side of extraction and the angle of each interior angle.
Specifically, when in each side of convex polygon to the length of side value of short side or longest edge without repeating when, then select most short
Side or longest edge have been used as initial line, and since initial line, according to direction clockwise or counterclockwise, extract convex polygon successively
The length of side value on each side and the angle of each interior angle.
In the present embodiment, when the length of side value on each side of convex polygon does not repeat, then most short side or longest edge conduct are selected
It plays initial line and extracts the length of side value on each side and the angle of each interior angle successively.Each length of side value and the sequence of each interior angle extraction are specified,
The extraction rate of each length of side value and each interior angle is accelerated, further improves verification efficiency.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle still further comprises
Following steps：
When most short side or longest edge length of side value duplicate, then using secondary short side or secondary long side as initial line is played, carry successively
Take the length of side value on each side and the angle of each interior angle.
Specifically, when the length of side value of most short side or longest edge duplicates in each side of convex polygon, then selection time
Short side or secondary long side have been used as initial line, and since initial line, according to direction clockwise or counterclockwise, extract successively convex polygon
The length of side value on each side of shape and the angle of each interior angle.
In the present embodiment, when the length of side value of most short side or longest edge duplicates in each side of convex polygon, then select secondary
Short side or secondary long side extract as initial line and successively the length of side value on each side and the angle of each interior angle.Specifying ought most short side or most
When the length of side value of long side duplicates, the sequence of each length of side value and the extraction of each interior angle accelerates carrying for each length of side value and each interior angle
Speed is taken, further improves verification efficiency.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle still further comprises
Following steps：
When the length of side value on each side duplicates, then number of repetition is minimum and shortest side is as an initial line, successively
Extract the length of side value on each side and the angle of each interior angle.
Specifically, when the length of side value on each side of convex polygon duplicates, then select number of repetition minimum and most
Short side has been used as initial line, and since initial line, according to direction clockwise or counterclockwise, extracts each side of convex polygon successively
Length of side value and each interior angle angle.Due to rise initial line length of side value repeat, so by repeat extraction convex polygon it is each while while
The angle of long value and each interior angle repeats extraction time and has been equal to initial line length of side value number of repetition.
In the present embodiment, when the length of side value on each side of convex polygon duplicates, then select number of repetition it is minimum and
It is shortest while as the length of side value and the angle of each interior angle for playing initial line and when extracting each successively.Specify the length of side value when each side
When duplicating, the sequence of each length of side value and the extraction of each interior angle accelerates the extraction rate of each length of side value and each interior angle, into one
Step improves verification efficiency.
It should be noted that in the present embodiment the storing process, i.e. seal feature of pre-stored seal extracting method
Obtaining step S1 and obtaining step S2 are may refer to the preparation method of number, details are not described herein again.
To sum up, the present embodiment is by obtaining the characteristic point of seal to be verified, you can extracts multiple features of seal to be verified
Each length of side value and each angle for the convex polygon that point is formed, and using each length of side value and each angle as the feature of seal to be verified,
It is uniquely numbered further, it is also possible to obtain seal to be verified.By the feature of seal to be verified and number with specified services institute in advance
The feature and number of the seal of storage compare, you can verify whether seal to be verified matches with specified services.Automatic identification is treated
The feature and number of verification seal simultaneously judge whether seal to be verified matches with specified services, save labour, improve work
Make efficiency, meanwhile, it also reduces to use and manually treats whether verification seal matches the error rate judged with specified services.
Device embodiment:
Referring to Fig. 2, Fig. 2 is the structure diagram of the verification device of seal provided in an embodiment of the present invention.As shown in the figure, the dress
Put including：Acquisition module 100, identification module 200 and determination module 300.
Wherein, acquisition module 100 is used to obtain the characteristic point and number of seal to be verified, and characteristic point is at least three.Know
Other module 200 be used to identifying the convex polygon that each characteristic point formed and each side for extracting convex polygon length of side value and
The angle of each interior angle, and using each length of side value and each angle as the feature of seal to be verified.Determination module 300 is used for will be to be tested
The feature and number for demonstrate,proving seal compare with pre-stored seal feature and number, if comparing result meets preset requirement,
Then judge that seal to be verified is verified.If determination module 300 is additionally operable to comparing result and is unsatisfactory for preset requirement, judgement is treated
Verification seal verification does not pass through.Wherein, the specific implementation process ginseng of acquisition module 100, identification module 200 and determination module 300
See the explanation in above method embodiment, details are not described herein for the present embodiment.
In the present embodiment, the characteristic point of seal to be verified is first obtained, then extracts multiple characteristic points composition of seal to be verified
Convex polygon each length of side value and each angle, and using each length of side value and each angle as the feature of seal to be verified, in addition, also
Seal to be verified can be obtained uniquely to number.By the feature of seal to be verified and number and the pre-stored print of specified services institute
The feature and number of chapter compare, you can verify whether seal to be verified matches with specified services.Automatic identification seal to be verified
Feature and number and judge whether seal to be verified matches with specified services, save labour, improve work efficiency, together
When, it also reduces to use and manually treats whether verification seal matches the error rate judged with specified services.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle includes：When each side
In most short side or longest edge length of side value without repeating when, then regard most short side or longest edge as initial line, extract successively it is each while while
The angle of long value and each interior angle.Wherein, the specific implementation process of the device is referring to the explanation in above method embodiment, sheet
Details are not described herein for embodiment.
In the present embodiment, when the length of side value on each side of convex polygon does not repeat, then most short side or longest edge conduct are selected
It plays initial line and extracts the length of side value on each side and the angle of each interior angle successively.Each length of side value and the sequence of each interior angle extraction are specified,
The extraction rate of each length of side value and each interior angle is accelerated, further improves verification efficiency.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle further includes：When most
When short side or longest edge length of side value duplicate, then using secondary short side or secondary long side as initial line is played, the length of side on each side is extracted successively
The angle of value and each interior angle.Wherein, the specific implementation process of the device is referring to the explanation in above method embodiment, this reality
Applying example, details are not described herein.
In the present embodiment, when the length of side value of most short side or longest edge duplicates in each side of convex polygon, then select secondary
Short side or secondary long side extract as initial line and successively the length of side value on each side and the angle of each interior angle.Specifying ought most short side or most
When the length of side value of long side duplicates, the sequence of each length of side value and the extraction of each interior angle accelerates carrying for each length of side value and each interior angle
Speed is taken, further improves verification efficiency.
In above-described embodiment, extract the length of side value on each side of convex polygon and the angle of each interior angle further includes：When each
When the length of side value on side duplicates, then number of repetition is minimum and shortest side as an initial line, extract successively it is each while while
The angle of long value and each interior angle.Wherein, the specific implementation process of the device is referring to the explanation in above method embodiment, sheet
Details are not described herein for embodiment.
In the present embodiment, when the length of side value on each side of convex polygon duplicates, then select number of repetition it is minimum and
It is shortest while as the length of side value and the angle of each interior angle for playing initial line and when extracting each successively.Specify the length of side value when each side
When duplicating, the sequence of each length of side value and the extraction of each interior angle accelerates the extraction rate of each length of side value and each interior angle, into one
Step improves verification efficiency.
The verification process of seal by taking electronic motion picture ticket ticket checking process as an example, will be described in detail below：
Electronic motion picture ticket ticket checking system is the project of a system integration application class, it is first assumed that in order to build electronics electricity
Movie ticket ticket checking system, system integrator have purchased the seal with multiple characteristic points, certain system integrator from the market
Also a whole set of electronic motion picture ticket box-office managing system is developed for movie theatre, it is soft including at least the seal registration run in smart mobile phone
Part runs the booking client software used to ticket-holder, electronic motion picture ticket service system in smart mobile phone.
The first step, it is soft that the administrator of electronic motion picture ticket service system opens seal registration in the equipment with capacitive screens
The multi-characteristic points of part touch the acquisition page, then gently press seal plane onto capacitive screens, and seal registration software obtains more
The coordinate of a characteristic point, and with reference to the feature of the obtaining step S1 in above method embodiment and identification step S2 acquisition seals.
Then seal, the unique number of registration software prompt input seal are removed.After the completion of number input, the feature of seal and number quilt
It is sent to application service system.One application service system can register multiple seals, and when application can select one or more
Seal completes same function.
Second step, consumer specify the electronic motion picture ticket of play using the purchase of mobile phone booking client software.
Third walks, and system manager selects one or more from the seal of registration, is tied to the film play specified.It needs
It is noted that this step does not have sequencing with second step.Furthermore it is possible to specify seal and the timeliness of film play binding
Property, to increase the variation of seal application, improve the safety of seal application.
4th step when consumer checks admission, opens mobile phone booking client software, and electronic motion picture ticket is included in hand
Machine front end, ticket agent will check function on seal flicking to mobile phone screen to be verified to perform.At this point, mobile phone booking client
End software identifies the feature and number of seal to be verified, and by the feature of seal to be verified, number, electronic motion picture ticket play
Electronic motion picture ticket service system is sent to the time.Mobile phone booking client software identifies the feature and number of seal to be verified
Method be referred to obtaining step S1 and identification step S2 in above method embodiment.Electronic motion picture ticket service system according to
The play of electronic motion picture ticket and time find the seal bound therewith, and by the feature of seal to be verified and number the print with binding
The feature and number of chapter compare.If comparing result meets preset requirement, electronic motion picture ticket service system if, will be verified
Result be sent to mobile phone booking client software, electronic motion picture ticket is then labeled ticket checking, and ticket checking staff, which sees, have been tested
Can then let pass consumer's admission after ticket label.If comparing result is unsatisfactory for preset requirement, electronic motion picture ticket service system if, will
Verification not by result be sent to mobile phone booking client software, client software display verification not by the reason of and carry
Show.
After the play film plays, seal and the play film can also be unbinded, to recycle the function of seal.
To sum up, the present embodiment first obtains the characteristic point of seal to be verified, then extracts multiple characteristic point structures of seal to be verified
Into convex polygon each length of side value and each angle, and using each length of side value and each angle as the feature of seal to be verified, in addition,
Seal to be verified can also be obtained uniquely to number.The feature of seal to be verified and number and specified services institute is pre-stored
The feature and number of seal compare, you can verify whether seal to be verified matches with specified services.With traditional paper-bill
It compares, the feature and number of automatic identification seal to be verified simultaneously judge seal to be verified and the whether matched function of specified services,
Bill paper and its printing device can be saved, using upper more economical, environmental protection, the process of verification is also more convenient reliable；And
Compared with the electronic bills such as Quick Response Code, then two-dimensional code scanning device can be saved, construction cost is lower.
It should be noted that the verification device in the present invention is identical with verification method principle, related part can mutually join
According to.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of verification method of seal, which is characterized in that include the following steps：
Obtaining step, obtains the characteristic point and number of seal to be verified, and the characteristic point is at least three；
Identification step, the convex polygon that each characteristic point of identification is formed and each side for extracting the convex polygon
The angle of length of side value and each interior angle, and using each length of side value and each angle as the feature of the seal to be verified；
Determination step compares the feature of the seal to be verified and number with pre-stored seal feature and number, such as
Fruit comparing result meets preset requirement, then judges that the seal to be verified is verified.
2. the verification method of seal according to claim 1, which is characterized in that the determination step further comprises：
If comparing result is unsatisfactory for the preset requirement, judge that the seal verification to be verified does not pass through.
3. the verification method of seal according to claim 1, which is characterized in that described to extract each of the convex polygon
The length of side value on side and the angle of each interior angle further comprise following steps：
When most short side in each side or longest edge length of side value are without repeating, then most short side or the longest edge are used as by described in
Initial line extracts the length of side value on each side and the angle of each interior angle successively.
4. the verification method of seal according to claim 1, which is characterized in that described to extract each of the convex polygon
The length of side value on side and the angle of each interior angle still further comprise following steps：
When the most short side or the longest edge length of side value duplicate, then using secondary short side or secondary long side as playing an initial line, according to
The length of side value on secondary each side of extraction and the angle of each interior angle.
5. the verification method of seal according to claim 1, which is characterized in that described to extract each of the convex polygon
The length of side value on side and the angle of each interior angle still further comprise following steps：
When the length of side value on each side duplicates, then number of repetition is minimum and shortest side is as an initial line, successively
Extract the length of side value on each side and the angle of each interior angle.
6. a kind of verification device of seal, which is characterized in that including：
Acquisition module (100), for obtaining the characteristic point of seal to be verified and number, the characteristic point is at least three；
Identification module (200), for identifying convex polygon that each characteristic point formed and the extraction convex polygon
The length of side value on each side and the angle of each interior angle, and using each length of side value and each angle as the seal to be verified
Feature；
Determination module (300), for by the feature of the seal to be verified and number with pre-stored seal feature and number
It compares, if comparing result meets preset requirement, judges that the seal to be verified is verified.
7. the verification device of seal according to claim 6, which is characterized in that the determination module (300) is additionally operable to：
If comparing result is unsatisfactory for the preset requirement, judge that the seal verification to be verified does not pass through.
8. the verification device of seal according to claim 6, which is characterized in that described to extract each of the convex polygon
The length of side value on side and the angle of each interior angle include：
When most short side in each side or longest edge length of side value are without repeating, then most short side or the longest edge are used as by described in
Initial line extracts the length of side value on each side and the angle of each interior angle successively.
9. the verification device of seal according to claim 6, which is characterized in that described to extract each of the convex polygon
The length of side value on side and the angle of each interior angle further include：
When the most short side or the longest edge length of side value duplicate, then using secondary short side or secondary long side as playing an initial line, according to
The length of side value on secondary each side of extraction and the angle of each interior angle.
10. the verification device of seal according to claim 6, which is characterized in that described to extract each of the convex polygon
The length of side value on a side and the angle of each interior angle further include：
When the length of side value on each side duplicates, then number of repetition is minimum and shortest side is as an initial line, successively
Extract the length of side value on each side and the angle of each interior angle.
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