CN110399914A - Ceramic fingerprint identification method and system - Google Patents
Ceramic fingerprint identification method and system Download PDFInfo
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- CN110399914A CN110399914A CN201910649036.5A CN201910649036A CN110399914A CN 110399914 A CN110399914 A CN 110399914A CN 201910649036 A CN201910649036 A CN 201910649036A CN 110399914 A CN110399914 A CN 110399914A
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- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
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Abstract
The present invention proposes that a kind of ceramic fingerprint identification method and system generate two dimensional code panoramic picture fingerprint method includes the following steps: acquiring the two-dimensional code fingerprint image of former ceramic surface；The finger image for acquiring any local location of ceramics to be verified obtains the two dimensional code topography fingerprint of ceramics to be verified；Calculate the location similarity and structural similarity of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint；Two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint are matched according to location similarity and structural similarity.The present invention effectively can carry out authenticity verification, and verification efficiency, verifying accuracy and highly-safe to ceramics.
Description
Technical field
The present invention relates to ceramic identification technology field, in particular to a kind of ceramic fingerprint identification method and system.
Background technique
Anti-counterfeiting technology at present about ceramics is varied, such as setting anti-counterfeit printing, antifalsification label etc., wherein can
It realizes information record and mainly simple security code (such as one-dimensional, two-dimensional bar, text code is set with system interaction
Deng) or electronic tag (such as RFID (Radio Frequency Identification, radio frequency identification) or NFC (Near Field
Communication, near-field communication)).But these security codes or electronic tag have the following deficiencies:
1. simple bar code/two dimensional code of unbonded ceramic sintering feature can be made by massive duplication easily, inexpensive
With safety is not high；
(even encrypted) information that 2.RFID/NFC label is stored can be intercepted and crack, then by easily
The label and massive duplication that ground write-in is forged use, and safety is not high；
3. either bar code, two dimensional code or RFID/NFC label have larger area, combined with product (packaging)
Scheme is limited, and is easily identified and destroys, and safety is not high.
Summary of the invention
The present invention is directed at least solve one of above-mentioned technical problem.
For this purpose, this method can be effectively right an object of the present invention is to provide a kind of ceramic fingerprint identification method
Ceramics carry out authenticity verification, and verification efficiency, verifying accuracy and highly-safe.
Second object of the present invention is to propose a kind of ceramic fingerprint recognition system.
To achieve the goals above, the embodiment of first aspect present invention proposes a kind of ceramic fingerprint identification method, packet
It includes following steps: acquiring the two-dimensional code fingerprint image of former ceramic surface, generate two dimensional code panoramic picture fingerprint；Acquire pottery to be verified
The finger image of any local location of porcelain obtains the two dimensional code topography fingerprint of the ceramics to be verified；Calculate described two
The location similarity and structural similarity of Wei Ma topography fingerprint and the two dimensional code panoramic picture fingerprint；According to the position
Similarity and structural similarity match two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint.
Ceramics fingerprint identification method according to an embodiment of the present invention acquires the two-dimensional code fingerprint image of former ceramic surface, raw
At two dimensional code panoramic picture fingerprint；The finger image for acquiring any local location of ceramics to be verified obtains ceramics to be verified
Two dimensional code topography fingerprint；Calculate the location similarity and knot of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint
Structure similarity；According to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint into
Row matching, to effectively carry out authenticity verification, and verification efficiency, verifying accuracy and safety to ceramics according to matching result
It is high.
In addition, ceramics fingerprint identification method according to the above embodiment of the present invention can also have following additional technology special
Sign:
In some instances, described that the two dimensional code topography is referred to according to the location similarity and structural similarity
Line and the two dimensional code panoramic picture fingerprint are matched, comprising: if the location similarity is greater than the first preset threshold, and
The structural similarity is greater than the second preset threshold, then judges two dimensional code topography fingerprint and the two dimensional code panorama sketch
As fingerprint matching success.
In some instances, the two-dimensional code fingerprint image for acquiring former ceramic surface, generates two dimensional code panoramic picture and refers to
Line, comprising: it is mobile that the word of former ceramic surface two dimensional code back and forth is tightly attached to by microscope, and is shot, to acquire two dimensional code
Upper corresponding topography forms multiple local image in 2 D code fingerprints；The multiple local image in 2 D code fingerprint is carried out
Information synthesis, forms the two dimensional code panoramic picture fingerprint.
In some instances, the location similarity is calculated, comprising: to two dimensional code topography fingerprint and described two
Dimension code panoramic picture fingerprint is compared, and determines position and the angle of two dimensional code topography fingerprint；Identify the two dimension
The bubble position of code topography fingerprint, and bubble position corresponding with the two dimensional code panoramic picture fingerprint is compared, and obtains
To the location similarity.
In some instances, the structural similarity is calculated, comprising: identify two dimensional code topography fingerprint and described
Bubble fingerprint in two dimensional code panoramic picture fingerprint after dividing bubble structure contour pattern, is calculated every using bubble partitioning algorithm
The similarity of a bubble fingerprint, to obtain the structural similarity.
To achieve the goals above, the embodiment of second aspect of the present invention proposes a kind of ceramic fingerprint recognition system, packet
Include: acquisition module generates two dimensional code panoramic picture fingerprint for acquiring the two-dimensional code fingerprint image of former ceramic surface, and, it adopts
The finger image for collecting any local location of ceramics to be verified obtains the two dimensional code topography fingerprint of the ceramics to be verified；
Computing module, for calculating the location similarity and structure of two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint
Similarity；Matching module, for according to the location similarity and structural similarity to two dimensional code topography fingerprint and
The two dimensional code panoramic picture fingerprint is matched.
Ceramics fingerprint recognition system according to an embodiment of the present invention acquires the two-dimensional code fingerprint image of former ceramic surface, raw
At two dimensional code panoramic picture fingerprint；The finger image for acquiring any local location of ceramics to be verified obtains ceramics to be verified
Two dimensional code topography fingerprint；Calculate the location similarity and knot of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint
Structure similarity；According to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint into
Row matching, to effectively carry out authenticity verification, and verification efficiency, verifying accuracy and safety to ceramics according to matching result
It is high.
In addition, ceramics fingerprint recognition system according to the above embodiment of the present invention can also have following additional technology special
Sign:
In some instances, the matching module is used for: and described when the location similarity is greater than the first preset threshold
When structural similarity is greater than the second preset threshold, judge that two dimensional code topography fingerprint and the two dimensional code panoramic picture refer to
Line successful match.
In some instances, the acquisition module is used for: by microscope be tightly attached to former ceramic surface two dimensional code back and forth it
Word is mobile, and is shot, and to acquire corresponding topography on two dimensional code, forms multiple local image in 2 D code fingerprints；It will
The multiple part image in 2 D code fingerprint carries out information synthesis, forms the two dimensional code panoramic picture fingerprint.
In some instances, the computing module is used for: complete to two dimensional code topography fingerprint and the two dimensional code
Scape finger image is compared, and determines position and the angle of two dimensional code topography fingerprint；Identify the two dimensional code part
The bubble position of finger image, and bubble position corresponding with the two dimensional code panoramic picture fingerprint is compared, and obtains described
Location similarity.
In some instances, the computing module is used for: identifying two dimensional code topography fingerprint and the two dimensional code
Bubble fingerprint in panoramic picture fingerprint calculates each bubble after dividing bubble structure contour pattern using bubble partitioning algorithm
The similarity of fingerprint, to obtain the structural similarity.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of ceramic fingerprint identification method according to an embodiment of the invention；
Fig. 2 is the structural schematic diagram of ceramic fingerprint recognition system according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Ceramic fingerprint identification method according to an embodiment of the present invention and system are described below in conjunction with attached drawing.
Fig. 1 is the flow chart of ceramic fingerprint identification method according to an embodiment of the invention.As shown in Figure 1, the ceramics
Fingerprint identification method, comprising the following steps:
Step S1: the two-dimensional code fingerprint image of former ceramic surface is acquired, two dimensional code panoramic picture fingerprint is generated.Wherein, former
Ceramics can be regarded as default ceramics, the ceramic template for the subsequent authentication ceramic true and false to be verified.
Specifically, in step sl, acquiring the two-dimensional code fingerprint image of former ceramic surface, generates two dimensional code panoramic picture and refer to
The process of line, comprising: it is mobile that the word of former ceramic surface two dimensional code back and forth is tightly attached to by microscope, and is shot, with acquisition
Corresponding topography on two dimensional code forms multiple local image in 2 D code fingerprints；By multiple local image in 2 D code fingerprints into
Row information synthesis, forms two dimensional code panoramic picture fingerprint.Specifically, based on two dimensional code uniqueness and during ceramic sintering
The bubble of the irregular random distribution generated assigns ceramic surface image in 2 D code fingerprint, is tightly attached to original using Cellscope
Ceramic surface two dimension code position acquires complete two-dimensional code fingerprint image back and forth in a zigzag, generates ceramic panoramic picture fingerprint.Its
In, Cellscope is mountable on mobile phone camera, is conducive to operation and acquisition, in turn, by photographing function of mobile phone, is tightly attached to
The word of former ceramic surface two dimensional code back and forth is mobile, carries out corresponding topography on shooting, collecting two dimensional code, forms multiple parts
Collected multiple local image in 2 D code fingerprints are carried out the synthesis of information, form two dimensional code by image in 2 D code fingerprint in turn
Panoramic picture fingerprint.
Step S2: the finger image of any local location in acquisition ceramics to be verified obtains the two dimension of ceramics to be verified
Code topography fingerprint.Specifically, being close to any part position in the image in 2 D code of ceramics to be verified using Cellscope
It sets, acquires the two dimensional code topography fingerprint of the ceramics to be verified.
Step S3: the location similarity and structure phase of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint are calculated
Like degree.To reduce false detection rate by location similarity and structural similarity dual test, promote recognition accuracy.
Specifically, in step s3, the process of calculating position similarity, comprising: to two dimensional code topography fingerprint and two
Dimension code panoramic picture fingerprint is compared, and the position for determining two dimensional code topography fingerprint and angle are (because two dimensional code is unique
Property, if you need to carry out two-dimensional code fingerprint identification, illustrate two-dimensional code fingerprint to be verified with it is consistent on former image in 2 D code, otherwise not
Fingerprint recognition is needed, two dimensional code energy verification is swept)；Identify the bubble position of two dimensional code topography fingerprint, and complete with two dimensional code
The corresponding bubble position of scape finger image is compared, and obtains location similarity.Specifically, cosine similarity calculating side can be used
Method carrys out calculating position similarity.
In step s3, the process of structural similarity is calculated, comprising: identification two dimensional code topography fingerprint and two dimensional code are complete
Bubble fingerprint in scape finger image is calculated each bubble and referred to using bubble partitioning algorithm after dividing bubble structure contour pattern
The similarity of line, to obtain structural similarity.Similarly, cosine similarity calculation method can be used to realize meter in structural similarity
It calculates.
Step S4: according to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code panoramic picture
Fingerprint is matched.
Specifically, in step s 4, according to location similarity and structural similarity to two dimensional code topography fingerprint and two
It ties up code panoramic picture fingerprint and carries out matched process, comprising: if location similarity is greater than the first preset threshold, and structure is similar
Degree is greater than the second preset threshold, then judges two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint matching success, that is, sentence
Fixed ceramic fingerprint to be verified is consistent with former ceramic fingerprint, illustrates that ceramics to be verified are genuine.Otherwise, i.e., if position is similar
Degree less than the second preset threshold, then judges two dimensional code topography fingerprint and two less than the first preset threshold or structural similarity
Dimension code panoramic picture fingerprint matching is unsuccessful, that is, determines that ceramic fingerprint to be verified and former ceramic fingerprint are inconsistent, illustrate to be tested
The ceramics of card are to forge.
Specifically, i.e., based on the local image in 2 D code for acquiring ceramics to be verified and former ceramic panorama image in 2 D code
Be compared, be anchored topography to be identified in the position of panoramic picture, in the position based on image bubble fingerprint, calculate and
With location similarity, based on the location similarity being calculated, the threshold value of setting position similarity mode, when the position phase of calculating
When reaching given threshold value (i.e. the first preset threshold) like degree, it can determine that the two is consistent in location similarity；Further, it counts
Bubble structure similarity is calculated, based on the structural similarity being calculated, setting structure similarity mode threshold value, when the structure of calculating
When similarity is greater than given threshold value (i.e. the second preset threshold), it can determine that the two is also consistent in structure, illustrate to be verified
Fingerprint and former fingerprint are same two-dimensional code fingerprint, i.e. successful match, then determine that ceramics to be verified are consistent with former ceramics, otherwise illustrate
Finger image mismatches, i.e., the two is not the same two-dimensional code fingerprint, then determines that ceramics to be verified and former ceramics are inconsistent.
To sum up, ceramic fingerprint identification method of the invention is not necessarily to other devices, is referred to by two dimensional code in implementation process
The method of line and image recognition is truly realized Ceramic anti-fake verification；Comprehensive various dimensions acquire fingerprint image, form panorama two dimension
Code fingerprint is made to be identified using the image of any local location, promotes the verification efficiency of verifier；Utilize two dimensional code figure
As the design feature of itself, image can be helped to carry out location position, so as to effectively filter because of shooting angle and light not
Same and generation influence of noise improves the accuracy of position anchoring and the accuracy of location similarity；In the base of location similarity
Structural similarity Dual Matching is used on plinth, can effectively reduce identification error rate, promotes accuracy.
Ceramics fingerprint identification method according to an embodiment of the present invention acquires the two-dimensional code fingerprint image of former ceramic surface, raw
At two dimensional code panoramic picture fingerprint；The finger image for acquiring any local location of ceramics to be verified obtains ceramics to be verified
Two dimensional code topography fingerprint；Calculate the location similarity and knot of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint
Structure similarity；According to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint into
Row matching, to effectively carry out authenticity verification, and verification efficiency, verifying accuracy and safety to ceramics according to matching result
It is high.
Further embodiment of the present invention also proposed a kind of ceramic fingerprint recognition system.
Fig. 2 is the structural block diagram of ceramic fingerprint recognition system according to an embodiment of the invention.As shown in Fig. 2, the pottery
Porcelain fingerprint recognition system 100 includes: acquisition module 110, computing module 120 and matching module 130.
Wherein, acquisition module 110 is used to acquire the two-dimensional code fingerprint image of former ceramic surface, generates two dimensional code panoramic picture
Fingerprint, and, the finger image of any local location of ceramics to be verified is acquired, the two dimensional code Local map of ceramics to be verified is obtained
As fingerprint.
Specifically, acquisition module 110 may include Cellscope.Acquisition module 110 acquires the two dimensional code of former ceramic surface
Fingerprint image, generate two dimensional code panoramic picture fingerprint process, comprising: by microscope be tightly attached to former ceramic surface two dimensional code come
The word returned is mobile, and is shot, and to acquire corresponding topography on two dimensional code, forms multiple local image in 2 D code and refers to
Line；Multiple local image in 2 D code fingerprints are subjected to information synthesis, form two dimensional code panoramic picture fingerprint.Specifically, it is based on
The bubble of two dimensional code uniqueness and the irregular random distribution generated during ceramic sintering assigns ceramic surface two dimensional code figure
As fingerprint, former ceramic surface two dimension code position is tightly attached to using Cellscope and acquires complete two-dimensional code fingerprint back and forth in a zigzag
Image generates ceramic panoramic picture fingerprint.Wherein, Cellscope is mountable on mobile phone camera, is conducive to operation and acquisition,
In turn, by photographing function of mobile phone, it is tightly attached to the word movement of former ceramic surface two dimensional code back and forth, is carried out on shooting, collecting two dimensional code
Corresponding topography forms multiple local image in 2 D code fingerprints, and in turn, collected multiple local image in 2 D code are referred to
Line carries out the synthesis of information, forms two dimensional code panoramic picture fingerprint.
The finger image of any local location in the acquisition verifying ceramics of acquisition module 110, obtains the two of ceramics to be verified
The process of Wei Ma topography fingerprint, comprising: be close to using Cellscope any in the image in 2 D code of ceramics to be verified
Local location acquires the two dimensional code topography fingerprint of the ceramics to be verified.
Computing module 120 is used to calculate the location similarity of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint
And structural similarity.To reduce false detection rate by location similarity and structural similarity dual test, it is accurate to promote identification
Degree.
Specifically, the process of 120 calculating position similarity of computing module, comprising: to two dimensional code topography fingerprint and two
Dimension code panoramic picture fingerprint is compared, and the position for determining two dimensional code topography fingerprint and angle are (because two dimensional code is unique
Property, if you need to carry out two-dimensional code fingerprint identification, illustrate two-dimensional code fingerprint to be verified with it is consistent on former image in 2 D code, otherwise not
Fingerprint recognition is needed, two dimensional code energy verification is swept)；Identify the bubble position of two dimensional code topography fingerprint, and complete with two dimensional code
The corresponding bubble position of scape finger image is compared, and obtains location similarity.Specifically, cosine similarity calculating side can be used
Method carrys out calculating position similarity.
The process of the calculating structural similarity of computing module 120, comprising: identification two dimensional code topography fingerprint and two dimensional code are complete
Bubble fingerprint in scape finger image is calculated each bubble and referred to using bubble partitioning algorithm after dividing bubble structure contour pattern
The similarity of line, to obtain structural similarity.Similarly, cosine similarity calculation method can be used to realize meter in structural similarity
It calculates.
Matching module 130 is used for according to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code
Panoramic picture fingerprint is matched.
Specifically, matching module 13 is according to location similarity and structural similarity to two dimensional code topography fingerprint and two dimension
Code panoramic picture fingerprint carries out matched process, comprising: when location similarity is greater than the first preset threshold, and structural similarity is big
When the second preset threshold, judge two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint matching success, that is, determine to
The ceramic fingerprint of verifying is consistent with former ceramic fingerprint, illustrates that ceramics to be verified are genuine.Otherwise, i.e., if location similarity is small
In the first preset threshold or structural similarity less than the second preset threshold, then two dimensional code topography fingerprint and two dimensional code are judged
Panoramic picture fingerprint matching is unsuccessful, that is, determines that ceramic fingerprint to be verified and former ceramic fingerprint are inconsistent, illustrate to be verified
Ceramics are forgery.
Specifically, i.e., based on the local image in 2 D code for acquiring ceramics to be verified and former ceramic panorama image in 2 D code
Be compared, be anchored topography to be identified in the position of panoramic picture, in the position based on image bubble fingerprint, calculate and
With location similarity, based on the location similarity being calculated, the threshold value of setting position similarity mode, when the position phase of calculating
When reaching given threshold value (i.e. the first preset threshold) like degree, it can determine that the two is consistent in location similarity；Further, it counts
Bubble structure similarity is calculated, based on the structural similarity being calculated, setting structure similarity mode threshold value, when the structure of calculating
When similarity is greater than given threshold value (i.e. the second preset threshold), it can determine that the two is also consistent in structure, illustrate to be verified
Fingerprint and former fingerprint are same two-dimensional code fingerprint, i.e. successful match, then determine that ceramics to be verified are consistent with former ceramics, otherwise illustrate
Finger image mismatches, i.e., the two is not the same two-dimensional code fingerprint, then determines that ceramics to be verified and former ceramics are inconsistent.
To sum up, ceramic fingerprint recognition system of the invention is not necessarily to other devices, is referred to by two dimensional code in implementation process
The method of line and image recognition is truly realized Ceramic anti-fake verification；Comprehensive various dimensions acquire fingerprint image, form panorama two dimension
Code fingerprint is made to be identified using the image of any local location, promotes the verification efficiency of verifier；Utilize two dimensional code figure
As the design feature of itself, image can be helped to carry out location position, so as to effectively filter because of shooting angle and light not
Same and generation influence of noise improves the accuracy of position anchoring and the accuracy of location similarity；In the base of location similarity
Structural similarity Dual Matching is used on plinth, can effectively reduce identification error rate, promotes accuracy.
It should be noted that the specific implementation of the ceramic fingerprint recognition system of the embodiment of the present invention and the present invention are implemented
The specific implementation of the ceramic fingerprint identification method of example is similar, specifically refers to the description of method part, in order to reduce redundancy,
Details are not described herein again.
Ceramics fingerprint recognition system according to an embodiment of the present invention acquires the two-dimensional code fingerprint image of former ceramic surface, raw
At two dimensional code panoramic picture fingerprint；The finger image for acquiring any local location of ceramics to be verified obtains ceramics to be verified
Two dimensional code topography fingerprint；Calculate the location similarity and knot of two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint
Structure similarity；According to location similarity and structural similarity to two dimensional code topography fingerprint and two dimensional code panoramic picture fingerprint into
Row matching, to effectively carry out authenticity verification, and verification efficiency, verifying accuracy and safety to ceramics according to matching result
It is high.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is by claim and its equivalent limits.
Claims (10)
1. a kind of ceramics fingerprint identification method, which comprises the following steps:
The two-dimensional code fingerprint image for acquiring former ceramic surface, generates two dimensional code panoramic picture fingerprint；
The finger image for acquiring any local location of ceramics to be verified obtains the two dimensional code topography of the ceramics to be verified
Fingerprint；
It calculates two dimensional code topography fingerprint and the location similarity of the two dimensional code panoramic picture fingerprint is similar with structure
Degree；
According to the location similarity and structural similarity to two dimensional code topography fingerprint and the two dimensional code panorama sketch
As fingerprint is matched.
2. the method for ceramics fingerprint recognition according to claim 1, which is characterized in that described according to the location similarity
Two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint are matched with structural similarity, comprising:
If the location similarity is greater than the first preset threshold, and the structural similarity is greater than the second preset threshold, then sentences
Break two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint matching success.
3. the method for ceramics fingerprint recognition according to claim 1, which is characterized in that described to acquire the two of former ceramic surface
Code fingerprint image is tieed up, two dimensional code panoramic picture fingerprint is generated, comprising:
It is mobile that the word of former ceramic surface two dimensional code back and forth is tightly attached to by microscope, and is shot, to acquire phase on two dimensional code
The topography answered forms multiple local image in 2 D code fingerprints；
The multiple local image in 2 D code fingerprint is subjected to information synthesis, forms the two dimensional code panoramic picture fingerprint.
4. the method for ceramics fingerprint recognition according to claim 1, which is characterized in that calculate the location similarity, wrap
It includes:
Two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint are compared, determine the two dimensional code office
The position of portion's finger image and angle；
Identify the bubble position of two dimensional code topography fingerprint, and bubble corresponding with the two dimensional code panoramic picture fingerprint
Position is compared, and obtains the location similarity.
5. the method for ceramics fingerprint recognition according to claim 4, which is characterized in that calculate the structural similarity, wrap
It includes:
The bubble fingerprint in two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint is identified, using bubble point
Algorithm is cut, after dividing bubble structure contour pattern, the similarity of each bubble fingerprint is calculated, to obtain the structural similarity.
6. a kind of ceramics fingerprint recognition system characterized by comprising
Acquisition module generates two dimensional code panoramic picture fingerprint for acquiring the two-dimensional code fingerprint image of former ceramic surface, and,
The finger image for acquiring any local location of ceramics to be verified, the two dimensional code topography for obtaining the ceramics to be verified refer to
Line；
Computing module, for calculate two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint location similarity and
Structural similarity；
Matching module, for according to the location similarity and structural similarity to two dimensional code topography fingerprint and described
Two dimensional code panoramic picture fingerprint is matched.
7. ceramics fingerprint recognition system according to claim 6, which is characterized in that the matching module is used for: when described
Location similarity be greater than the first preset threshold, and the structural similarity be greater than the second preset threshold when, judge the two dimensional code
Topography's fingerprint and two dimensional code panoramic picture fingerprint matching success.
8. ceramics fingerprint recognition system according to claim 6, which is characterized in that the acquisition module is used for:
It is mobile that the word of former ceramic surface two dimensional code back and forth is tightly attached to by microscope, and is shot, to acquire phase on two dimensional code
The topography answered forms multiple local image in 2 D code fingerprints；
The multiple local image in 2 D code fingerprint is subjected to information synthesis, forms the two dimensional code panoramic picture fingerprint.
9. ceramics fingerprint recognition system according to claim 6, which is characterized in that the computing module is used for:
Two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint are compared, determine the two dimensional code office
The position of portion's finger image and angle；
Identify the bubble position of two dimensional code topography fingerprint, and bubble corresponding with the two dimensional code panoramic picture fingerprint
Position is compared, and obtains the location similarity.
10. ceramics fingerprint recognition system according to claim 9, which is characterized in that the computing module is used for:
The bubble fingerprint in two dimensional code topography fingerprint and the two dimensional code panoramic picture fingerprint is identified, using bubble point
Algorithm is cut, after dividing bubble structure contour pattern, the similarity of each bubble fingerprint is calculated, to obtain the structural similarity.
Priority Applications (1)
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