CN105654027B - A kind of method and device of fingerprint recognition - Google Patents
A kind of method and device of fingerprint recognition Download PDFInfo
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- CN105654027B CN105654027B CN201510464722.7A CN201510464722A CN105654027B CN 105654027 B CN105654027 B CN 105654027B CN 201510464722 A CN201510464722 A CN 201510464722A CN 105654027 B CN105654027 B CN 105654027B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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Abstract
The embodiment of the invention discloses a kind of method and devices of fingerprint recognition, for improving fingerprint recognition rate.The method comprise the steps that processor obtains the first finger print information of collector acquisition, judge whether the first finger print information matches with stored template fingerprint information；If mismatching, the second finger print information of collector acquisition is obtained, then second finger print information is merged with the first finger print information to form third finger print information, then judge whether third finger print information matches with template fingerprint information；If matching, it is determined that fingerprint recognition success.This programme is matched with template fingerprint information again after the finger print information that different moments acquire during one acquisition being overlapped, so as to improve fingerprint recognition rate.
Description
Technical field
The present invention relates to field of biological recognition more particularly to a kind of method and devices of fingerprint recognition.
Background technique
Fingerprint recognition, which refers to by comparing the details of different fingerprints, carries out identity authentication.It is opened from iPhone 5s
Begin, mobile fingerprint identification is more and more paid close attention to, and more and more smart phones support fingerprint recognition, is mainly used in fingerprint
Unlock and fingerprint pay two application scenarios.
Since mobile phone becomes thin, fingerprint recognition mould group becomes small, and the finger print information of a typing is limited, records in fingerprint
Fashionable, user may press the same finger-print region repeatedly, and at the end of leading to last typing, the finger print information of preservation is limited.
In the prior art, during carrying out fingerprint recognition, primary identification only can acquire a finger print information, and primary
If the finger print information of acquisition will lead to fingerprint recognition failure when deviating from typing region, therefore influence fingerprint recognition rate.
Summary of the invention
The embodiment of the invention provides a kind of method and devices of fingerprint recognition, can be improved fingerprint recognition rate.
In a first aspect, the embodiment of the invention provides a kind of methods of fingerprint recognition, comprising:
Processor obtains the first finger print information of collector acquisition；Processor judges the first finger print information and stored mould
Whether plate finger print information matches；If the first finger print information and template fingerprint information mismatch, processor obtains collector acquisition
The second finger print information, the first finger print information and the second finger print information are the fingerprint letters that different moments acquire during one acquisition
Breath；Processor merges the second finger print information with the first finger print information to form third finger print information；Processor judges that third refers to
Whether line information matches with template fingerprint information；If third finger print information and template fingerprint information matches, processor determination refers to
Line identifies successfully.
With reference to first aspect, in the first possible implementation of the first aspect, processor is by the second finger print information
Merge with the first finger print information with formed third finger print information include: processor by the second finger print information with the first finger print information
Underlapped part is saved into the first finger print information to form third finger print information.
With reference to first aspect or the first possible implementation of first aspect, second in first aspect are possible
In implementation, processor judges that the first finger print information with whether stored template fingerprint information matches includes: that processor is sentenced
Whether the similarity of disconnected first finger print information and template fingerprint information is greater than the first preset threshold；If being not more than the first default threshold
Value, then processor determines that the first finger print information and template fingerprint information mismatch.
The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect
In, if the similarity of the first finger print information and template fingerprint information is not more than the first preset threshold, processor can also judge the
Whether the similarity of one finger print information and template fingerprint information is greater than the second preset threshold, and the second preset threshold is default less than first
Threshold value；If more than the second preset threshold, the step of obtaining the second finger print information that collector acquires just is executed.
With reference to first aspect or the first possible implementation of first aspect, the 4th kind in first aspect are possible
In implementation, if third finger print information and template fingerprint information matches, processor will refer in third finger print information with template
The underlapped part of line information is saved into template fingerprint information to form new template fingerprint information.
With reference to first aspect or the first possible implementation of first aspect, the 5th kind in first aspect are possible
In implementation, processor is obtained after the second finger print information of collector acquisition further include: processor judges that the second fingerprint is believed
Whether the effective information in breath matches with the first finger print information；If matching, processor determines fingerprint recognition success；If not
Match, then processor executes the step of merging the second finger print information to form third finger print information with the first finger print information.
Second aspect, the embodiment of the invention provides a kind of fingerprint identification devices, comprising:
Memory, for storing template fingerprint information；
Collector, for acquiring the finger print information of user；
Processor, for obtaining the first finger print information of collector acquisition；Judge the first finger print information and stored mould
Whether plate finger print information matches；If the first finger print information and template fingerprint information mismatch, the second of collector acquisition is obtained
Finger print information, the first finger print information and the second finger print information are the finger print informations of different moments acquisition during one acquisition；It
Afterwards, then by the second finger print information with the first finger print information merge to form third finger print information, judge third finger print information and mould
Whether plate finger print information matches, if third finger print information and template fingerprint information matches, it is determined that fingerprint recognition success.
In conjunction with second aspect, in the first possible implementation of the second aspect, processor is specifically used for second
The part underlapped with the first finger print information is saved into the first finger print information to form third finger print information in finger print information.
In conjunction with the possible implementation of the first of second aspect or second aspect, second in second aspect is possible
In implementation, processor, specifically for by judging whether the first finger print information and the similarity of template fingerprint information are greater than
First preset threshold judges whether the first finger print information matches with stored template fingerprint information, if default no more than first
Threshold value, then processor determines that the first finger print information and template fingerprint information mismatch.
In conjunction with second of possible implementation of second aspect, in the possible implementation of third of second aspect,
Processor, specifically for judging when the similarity of the first finger print information and template fingerprint information is not more than the first preset threshold
Whether the similarity of the first finger print information and template fingerprint information is greater than the second preset threshold, and the second preset threshold is pre- less than first
If threshold value；If more than the second preset threshold, then the step of obtaining the second finger print information that collector acquires is executed.
In conjunction with the possible implementation of the first of second aspect or second aspect, the 4th kind in second aspect is possible
In implementation, processor is also used to when third finger print information and when template fingerprint information matches, by third finger print information with
The underlapped part of template fingerprint information is saved into template fingerprint information to form new template fingerprint information.
In conjunction with the possible implementation of the first of second aspect or second aspect, the 5th kind in second aspect is possible
In implementation, processor is also used to after the second finger print information for obtaining collector acquisition, judges in the second finger print information
Effective information whether matched with the first finger print information, if matching, processor determine fingerprint recognition success, if mismatch,
The step of execution merges the second finger print information to form third finger print information with the first finger print information.
As can be seen from the above technical solutions, the scheme of the embodiment of the present invention has the following beneficial effects:
In the embodiment of the present invention, in fingerprint identification process, processor obtains the first finger print information of collector acquisition, sentences
Whether disconnected first finger print information matches with stored template fingerprint information；If mismatching, the second of collector acquisition is obtained
Finger print information, then second finger print information is merged with the first finger print information to form third finger print information, then judge that third refers to
Whether line information matches with template fingerprint information；If matching, it is determined that fingerprint recognition success.This programme can be in one acquisition
The finger print information of different moments acquisition is matched with template fingerprint information again after being overlapped in the process, is referred to so as to improve
Line discrimination.
Detailed description of the invention
Fig. 1 is a kind of flow chart of fingerprint identification method in the embodiment of the present invention；
Fig. 2 is the schematic diagram that the first finger print information and the second finger print information merge in the embodiment of the present invention；
Fig. 3 is another flow chart of fingerprint identification method in the embodiment of the present invention；
Fig. 4 is the embodiment schematic diagram of fingerprint identification device in the embodiment of the present invention；
Fig. 5 is the embodiment schematic diagram of fingerprint identification device in the embodiment of the present invention；
Fig. 6 is fingerprint identification device hardware structural diagram in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of fingerprint identification method and devices, can be improved fingerprint recognition rate.Separately below
It is described in detail.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
In existing mobile fingerprint identification technology, the main acquisition that finger print information is carried out using swiping formula and push type,
It can be applied to above two scheme in the embodiment of the present invention, for convenience, said in the embodiment of the present invention with push type
It is bright.
In the identification application of actual mobile fingerprint, when user opens fingerprint identification function, system may require that user records
Enter the template that one or more fingerprints are used as, these fingerprints can be stored in template database by system.One template fingerprint of typing
Detailed process can be with are as follows:
User carries out fingerprint typing by pressing finger according to the prompt of system, and fingerprint capturer acquires a fingerprint, leads to
It crosses certain program and data processing is carried out to fingerprint, at the figure of certain format or convert datagram for intuitive finger prints processing
The figure formed after the finger prints processing or datagram are stored in template database by (figure or datagram are referred to as datagram)
In, as fixed form finger print data figure in the future.
After typing fingerprint template datagram, subsequent in the scene for needing to use fingerprint recognition, system is by fingerprint
The fingerprint of collector acquisition is matched with the fingerprint in template.
In conjunction with Fig. 1, the fingerprint identification method in the embodiment of the present invention is described in detail below.
101, processor obtains the first finger print information of collector acquisition；
When needing fingerprint recognition, such as: when user carries out fingerprint recognition unlock by pressing fingerprint sensor, fingerprint is passed
Sensor acquires the finger print information of user, which is referred to as the first finger print information.
It is the prior art here by fingerprint sensor acquisition finger print information, does not elaborate herein.
It should be noted that the first finger print information of collector acquisition, may not place because of finger and stablize and cause
Image is fuzzy, therefore, can grab multiple fingerprint image, and using last width fingerprint image, or one width of any selection is clearly
Fingerprint image is as the first finger print information, and the specific present invention is without limitation.
After fingerprint capturer collects the first finger print information, processor gets first finger print information.
In practical application, processor can be handled first finger print information, and intuitive fingerprint is carried out processing and is formed
Datagram.
102, processor judges whether the first finger print information matches with stored template fingerprint information；
Processor refers to the template stored in the first finger print information and template database after getting the first finger print information
Line information is compared, and judges whether the first finger print information matches with template fingerprint information.If there is multiple moulds in template database
Then the first finger print information is successively compared with these template fingerprint information for plate finger print information.
103, processor obtains the second finger print information of collector acquisition；
If the first finger print information matches all failed with all finger print informations in template library, system is not confirmed with this
Fingerprint recognition failure, but will continue to acquisition finger print information, the finger print information of second of acquisition is referred to as the second finger print information.
It should be noted that first time fingerprint collecting and second of fingerprint collecting are all that fingerprint recognition is confirmed in system to lose
The fingerprint collecting carried out before losing is the finger print information of a different moments acquisition during fingerprint collecting.Specifically may be used
To be following two application scenarios:
After processor confirms that the first finger print information and template fingerprint information mismatch, processor judges on fingerprint sensor
Finger overlay area whether reach collectable threshold value, in the present embodiment for ease of description, taking the threshold value is fingerprint sensing
3/4ths of device area are illustrated.
If the finger overlay area 1, on fingerprint sensor is greater than 3/4ths of fingerprint sensor area, illustrate to use
The finger at family still presses on fingerprint sensor, can obtain effective finger print information, so the direct grabgraf of fingerprint capturer,
And image recognition is carried out, thus the second finger print information of acquisition；
If the finger overlay area fingerprint 2, on fingerprint sensor is less than 3/4ths of fingerprint sensor area, and big
In 0, then illustrate that the finger of user still presses on fingerprint sensor, or lifting the process of finger, but cannot obtain
Effective finger print information, thus fingerprint sensor re-start the finger overlay area judged on sensor whether be greater than four/
Three；
If the finger overlay area fingerprint 3, on fingerprint sensor is equal to 0, illustrate that the finger of user has lifted, then
Fingerprint recognition system prompts user to adjust finger and carries out second of pressing, when user re-presses finger, acquires the second fingerprint
Information.
After collector collects the second finger print information, available second finger print information of processor.
104, processor merges the second finger print information with the first finger print information to form third finger print information；
In order to improve discrimination, processor after getting the second finger print information, by the second finger print information with acquire before
The first finger print information be combined, to form a relatively full finger print information, which is referred to as third and is referred to
Line information.Because the second finger print information is after having acquired first time finger print information, finger is covered on fingerprint sensor and does not move
When acquire or finger acquires during mobile on fingerprint sensor or finger re-press after acquire, after institute
Second finger print information of two kinds of situations acquisition third not identical, therefore being formed after merging as the information that the first finger print information obtains
The finger print information of finger print information carrying is abundanter than the finger print information that the first finger print information or the second finger print information carry.
105, processor judges whether third finger print information matches with template fingerprint information；
Processor by the first finger print information and the second finger print information after merging and to form third finger print information, then judges third
Whether finger print information matches with template fingerprint information.
106, processor determines fingerprint recognition success.
If processor confirmation third finger print information can be matched with template fingerprint information, fingerprint recognition successfully, can be with
The identity information of good authentication user, to complete corresponding applied business.
If processor confirms that third finger print information and template fingerprint information mismatch, fingerprint recognition failure, this refers to
The identity information failure of line identification verifying user.
It should be noted that system can continue to repeat 104 if third finger print information and template fingerprint information mismatch
The step of to 105, acquires the 4th finger print information, and the 4th finger print information is merged with third finger print information to form the 5th fingerprint and believe
Breath, then the 5th finger print information is matched with template fingerprint information, if successful match, fingerprint recognition success can be confirmed,
If matching is unsuccessful, continue to repeat step 104 to step 105, until fingerprint recognition success.
The number that repeated acquisition fingerprint can be set for security consideration is no more than predetermined threshold (such as three times), if it exceeds
Predetermined threshold, it is determined that recognition failures prompt user fingerprints recognition failures.
In addition, the finger print information acquired every time is temporary information, need to be stored in specific storage (such as cache
In), when identifying successfully or determining recognition failures, remove the acquisition information kept in particular memory.
In the embodiment of the present invention, in fingerprint identification process, processor obtains the first finger print information of collector acquisition, sentences
Whether disconnected first finger print information matches with stored template fingerprint information；If mismatching, the second of collector acquisition is obtained
Finger print information, then second finger print information is merged with the first finger print information to form third finger print information, then judge that third refers to
Whether line information matches with template fingerprint information；If matching, it is determined that fingerprint recognition success.This programme can be in one acquisition
The finger print information of different moments acquisition is matched with template fingerprint information again after being overlapped in the process, to improve fingerprint
Discrimination.
In addition, in the embodiment of the present invention, can constantly grabgraf identification during user slides finger, can be improved finger
The playability of line identification.
As a kind of specific embodiment, processor merges the second finger print information with the first finger print information to form
The concrete mode of three finger print informations are as follows: part underlapped with the first finger print information in the second finger print information is saved to first and is referred to
To form third finger print information in line information.
As shown in Fig. 2, the part (a-quadrant) in rectangle frame is the first finger print information, the second finger print information is oval part
(B area), a-quadrant and the underlapped part of B area are the region b, then processor directly splices the fingerprint image in the region b to the
More to form third fingerprint image in one fingerprint image, or the finger print data figure in the region b is supplemented in the first finger print data figure
To form third finger print data.
As a kind of specific embodiment, processor judges that the first finger print information is with stored template fingerprint information
No matched mode specifically: be compared the first finger print information with template fingerprint information, whether the similarity both judged
Greater than the first preset threshold, if more than then can determine the first finger print information and stored template fingerprint information matches.Such as:
The first preset threshold of similarity is 70%, when the similarity of the first finger print information and template fingerprint information be 80% when, can be true
Recognizing the two fingerprints can match.
Further, as another embodiment, in practical applications, if the first finger print information and template fingerprint information
Similarity less than the first preset threshold, then can determine this fingerprint recognition fail, processor is further continued for judgement first at this time
The similarity of finger print information and template fingerprint information is on the basis of less than the first preset threshold, if it is greater than the second preset threshold,
If more than the second preset threshold, then it can learn that current user may be the owner of template fingerprint, the only acquired
One fingerprint is not enough to verify by fingerprint recognition, and processor just executes the second finger print information for continuing to obtain collector acquisition at this time
The step of, if be not more than the second preset threshold, can learn currently used person not is the owner of template fingerprint, then not followed by
The continuous acquisition for carrying out second of finger print information, system directly prompt user fingerprints recognition failures.
Such as: the first preset threshold of fingerprint similarity is 70%, and the second preset threshold is 50%.Processor obtain the
When the similarity of one finger print information and template fingerprint information is 60%, then it can confirm that the two fingerprints mismatch, but 60% phase
It is greater than the second preset threshold 50% like degree, then can be confirmed that the user of current press finger is mobile phone owner, then system continues
Acquire the second finger print information；If the similarity of the first finger print information and template fingerprint information that processor obtains is 40%,
Can confirm the two fingerprints mismatch, and 40% similarity less than the second preset threshold 50%, then current press can be confirmed
The user of finger is not mobile phone owner, then system does not continue to the second finger print information of acquisition, prompts user fingerprints recognition failures.
Further, as another embodiment, in practical applications, processor obtains the second fingerprint of collector acquisition
It can first judge whether the effective information in the second finger print information matches with the first finger print information after information, if matching, really
Determine fingerprint recognition success；If mismatching, processor, which is just executed, merges the second finger print information to be formed with the first finger print information
The step of third finger print information.
In the prior art, the template fingerprint information stored in fingerprint template library be it is fixed, it is constant, refer to improve
Line discrimination can carry out self study after fingerprint recognition success.It is specifically described below.
In conjunction with Fig. 3, one of embodiment of the present invention fingerprint identification method, comprising:
Step 301 is identical to step 106 as the step 101 in embodiment shown in FIG. 1 to step 306, specifically herein not
It repeats.
307, part underlapped with template fingerprint information in third finger print information is saved to template fingerprint and is believed by processor
New template fingerprint information is formed in breath.
If the template fingerprint information matches success in third finger print information and fingerprint template library, fingerprint recognition at
Function, processor save part underlapped with template fingerprint information in the first finger print information into template fingerprint information to be formed
New template fingerprint information, and this new template fingerprint information is replaced to the template fingerprint information saved in template library.
Underlapped part herein can be the underlapped part of fingerprint image, or the data in finger print data figure
The underlapped part in part.
Specific preserving type is to splice underlapped part with template fingerprint information to form new template fingerprint and believe
Breath.
In the embodiment of the present invention, processor by the first finger print information acquired with the different moments in collection process with
Second finger print information merges to form third finger print information, then judges that the third finger print information is with stored template fingerprint information
No matching, if matching, the processor determine fingerprint recognition success, and by third finger print information with template fingerprint information not
The part of overlapping is saved into template fingerprint information to form new template fingerprint information.Because template fingerprint information can be with finger
Line identification increasing for number and enrich constantly, achieve the effect that learn automatically, therefore the rate of fingerprint recognition can be improved.
It is to be described to the fingerprint identification method in the embodiment of the present invention above, below from the angle of modular construction
Fingerprint identification device in the embodiment of the present invention is introduced.
In conjunction with Fig. 4, the embodiment of the invention provides a kind of fingerprint identification devices 4, comprising:
Memory 401, for storing template fingerprint information；
Collector 402, for acquiring the finger print information of user；
Processor 403, for obtaining the first finger print information of collector acquisition；Judge the first finger print information with it is stored
Whether template fingerprint information matches；If the first finger print information and template fingerprint information mismatch, the of collector acquisition is obtained
Two finger print informations, the first finger print information and the second finger print information are the finger print informations of different moments acquisition during one acquisition；
And then the second finger print information is merged with the first finger print information to form third finger print information, judge third finger print information with
Whether template fingerprint information matches, if third finger print information and template fingerprint information matches, it is determined that fingerprint recognition success.
Interactive process between each unit of fingerprint identification device of the embodiment of the present invention 4 can be refering to real shown in earlier figures 1
The interactive process in example is applied, specific details are not described herein again.
In the embodiment of the present invention, in fingerprint identification process, processor 403 obtains the first fingerprint that collector 402 acquires
Information, judges whether the first finger print information matches with the template fingerprint information that memory 401 stores；If mismatching, acquisition is adopted
The second finger print information that storage 402 acquires, then second finger print information is merged with the first finger print information to form third fingerprint
Information, then judge whether third finger print information matches with template fingerprint information；If matching, it is determined that fingerprint recognition success.We
Case is carried out with template fingerprint information again after the finger print information that different moments acquire during one acquisition being overlapped
Matching, to improve fingerprint recognition rate.
Further, as another embodiment, processor 403, be specifically used for by the second finger print information with the first fingerprint
The underlapped part of information is saved into the first finger print information to form third finger print information.
Further, as another embodiment, processor 403 is specifically used for by judging the first finger print information and template
Whether the similarity of finger print information is greater than the first preset threshold to judge the first finger print information and stored template fingerprint information
Whether match, if being not more than the first preset threshold, processor determines that the first finger print information and template fingerprint information mismatch.
Further, as another embodiment, processor 403 is specifically used for believing when the first finger print information and template fingerprint
When the similarity of breath is not more than the first preset threshold, judge whether the first finger print information and the similarity of template fingerprint information are greater than
Second preset threshold, the second preset threshold is less than the first preset threshold；If more than the second preset threshold, then acquisition collector is executed
The step of second finger print information of acquisition.
Further, as another embodiment, processor 403 is also used in the second fingerprint letter for obtaining collector acquisition
After breath, judge whether the effective information in the second finger print information matches with the first finger print information, if matching, processor is determined
Fingerprint recognition success executes if mismatching and merges the second finger print information to form third fingerprint letter with the first finger print information
The step of breath.
In conjunction with Fig. 5, the embodiment of the invention provides a kind of fingerprint identification devices 5, comprising:
Memory 501, for storing template fingerprint information；
Collector 502, for acquiring the finger print information of user；
Processor 503, for obtaining the first finger print information of collector acquisition；Judge the first finger print information with it is stored
Whether template fingerprint information matches；If the first finger print information and template fingerprint information mismatch, the of collector acquisition is obtained
Two finger print informations, the first finger print information and the second finger print information are the finger print informations of different moments acquisition during one acquisition；
And then the second finger print information is merged with the first finger print information to form third finger print information, judge third finger print information with
Whether template fingerprint information matches, if third finger print information and template fingerprint information matches, it is determined that fingerprint recognition success.
Processor 503, is also used to when third finger print information and when template fingerprint information matches, by third finger print information with
The underlapped part of template fingerprint information is saved into template fingerprint information to form new template fingerprint information.
Interactive process between each unit of fingerprint identification device of the embodiment of the present invention 5 can be refering to real shown in earlier figures 3
The interactive process in example is applied, specific details are not described herein again.
In the embodiment of the present invention, processor 503 believes the first fingerprint acquired with the different moments in a collection process
Breath merges to form third finger print information with the second finger print information, then judges that the third finger print information and stored template fingerprint are believed
Whether breath matches, if matching, the processor 503 determines fingerprint recognition success, and will refer in third finger print information with template
The underlapped part of line information is saved into template fingerprint information to form new template fingerprint information.Because of template fingerprint information
It can enrich constantly with the increasing for number of fingerprint recognition, achieve the effect that learn automatically, therefore fingerprint recognition can be improved
Rate.
The above is to be described from function modoularization angle to fingerprint identification device, below from the angle pair of hardware handles
Fingerprint identification device in the embodiment of the present invention is introduced.
Fig. 6 is the structural schematic diagram of fingerprint identification device of the embodiment of the present invention 6.Fingerprint identification device 6 may include at least one
A network interface or other communication interfaces, at least one input unit 601, at least one output device 602, at least one
Reason device 603 and memory 604 (can be with realizing the connection communication between these devices by least one network interface
Line is wireless) realize communication connection between the system gateway and at least one other network element.
Memory 604 may include read-only memory and random access memory, and provide instruction sum number to processor 603
According to a part of of memory 604 can also be including that may include high-speed random access memory (RAM, Random Access
Memory), it is also possible to further include non-labile memory (non-volatile memory).
Memory 604 stores following element, executable modules or data structures perhaps their subset or
Their superset:
Operational order: including various operational orders, for realizing various operations.
Operating system: including various system programs, for realizing various basic businesses and the hardware based task of processing.
In embodiments of the present invention, operational order (operational order that processor 603 is stored by calling memory 604
It is storable in operating system), it performs the following operations:
For obtaining the first finger print information of the acquisition of input unit 601；Judge that the first finger print information and memory 604 store
Template fingerprint information whether match；If the first finger print information and template fingerprint information mismatch, obtains input unit 601 and obtain
The second finger print information obtained, the first finger print information and the second finger print information are the fingerprints of different moments acquisition during one acquisition
Information；And then merge the second finger print information to form third finger print information with the first finger print information, judge that third fingerprint is believed
Whether breath matches with template fingerprint information, if third finger print information and template fingerprint information matches, it is determined that fingerprint recognition success.
In some embodiments, following steps can also be performed in above-mentioned processor 603:
Part underlapped with the first finger print information in second finger print information is saved into the first finger print information to be formed
Third finger print information.
In some embodiments, following steps can also be performed in above-mentioned processor 603:
Judged by judging whether the similarity of the first finger print information and template fingerprint information is greater than the first preset threshold
Whether the first finger print information matches with stored template fingerprint information, if being not more than the first preset threshold, processor is determined
First finger print information and template fingerprint information mismatch.
In some embodiments, following steps can also be performed in above-mentioned processor 603:
When the similarity of the first finger print information and template fingerprint information is not more than the first preset threshold, the first fingerprint is judged
Whether the similarity of information and template fingerprint information is greater than the second preset threshold, and the second preset threshold is less than the first preset threshold；
If more than the second preset threshold, then the step of obtaining the second finger print information that collector acquires is executed.
In some embodiments, following steps can also be performed in above-mentioned processor 603:
When third finger print information and template fingerprint information matches, will not be weighed in third finger print information with template fingerprint information
Folded part is saved into template fingerprint information to form new template fingerprint information.
In some embodiments, following steps can also be performed in above-mentioned processor 603:
After the second finger print information for obtaining collector acquisition, the effective information in the second finger print information and first are judged
Whether finger print information matches, if matching, processor determines fingerprint recognition success, if mismatching, executes and believes the second fingerprint
The step of breath merges with the first finger print information to form third finger print information.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of method of fingerprint recognition characterized by comprising
Processor obtains the first finger print information of collector acquisition；
The processor judges whether first finger print information and the similarity of template fingerprint information are greater than the first preset threshold；
If being not more than first preset threshold, the processor judges that first finger print information and the template fingerprint are believed
Whether the similarity of breath is greater than the second preset threshold, and second preset threshold is less than first preset threshold；
If more than the second preset threshold, then the processor obtains the second finger print information of the collector acquisition, and described first
Finger print information and second finger print information are the finger print informations of different moments acquisition during one acquisition；
The processor merges second finger print information to form third finger print information with first finger print information；
The processor judges whether the third finger print information matches with the template fingerprint information；
If the third finger print information and the template fingerprint information matches, the processor determines fingerprint recognition success.
2. the method according to claim 1, wherein the processor is by second finger print information and described the
One finger print information merges to form third finger print information
The processor saves part underlapped with first finger print information in second finger print information to described
To form the third finger print information in one finger print information.
3. method according to claim 1 or 2, which is characterized in that the method also includes:
If the third finger print information and the template fingerprint information matches, the processor will be in the third finger print information
Underlapped part, which is saved, with the template fingerprint information forms new template fingerprint information into the template fingerprint information.
4. method according to claim 1 or 2, which is characterized in that the processor obtains the of collector acquisition
After two finger print informations further include:
The processor judges whether the effective information in second finger print information matches with first finger print information；
If matching, the processor determines fingerprint recognition success；
If mismatching, the processor, which is executed second finger print information, to be merged with first finger print information to form the
The step of three finger print informations.
5. a kind of fingerprint identification device characterized by comprising
Memory, for storing template fingerprint information；
Collector, for acquiring the finger print information of user；
Processor, for obtaining the first finger print information of collector acquisition；Judge that first finger print information and template fingerprint are believed
Whether the similarity of breath is greater than the first preset threshold；If being not more than first preset threshold, the first fingerprint letter is judged
Whether the similarity of breath and the template fingerprint information is greater than the second preset threshold, and second preset threshold is less than described first
Preset threshold；If more than the second preset threshold, then the second finger print information of the collector acquisition, the first fingerprint letter are obtained
Breath and second finger print information are the finger print informations of different moments acquisition during one acquisition；And then by described second
Finger print information merges with first finger print information to form third finger print information, judges the third finger print information and the mould
Whether plate finger print information matches, if the third finger print information and the template fingerprint information matches, it is determined that fingerprint recognition at
Function.
6. fingerprint identification device according to claim 5, it is characterised in that:
The processor, specifically for will be saved in second finger print information with the underlapped part of first finger print information
Extremely to form the third finger print information in first finger print information.
7. fingerprint identification device according to claim 5 or 6, it is characterised in that:
The processor is also used to refer to the third when the third finger print information and the template fingerprint information matches
The part underlapped with the template fingerprint information is saved into the template fingerprint information to form new template in line information
Finger print information.
8. fingerprint identification device according to claim 5 or 6, it is characterised in that:
The processor is also used to after the second finger print information for obtaining the collector acquisition, judges second fingerprint
Whether the effective information in information matches with first finger print information, if matching, the processor determine fingerprint recognition at
Function executes if mismatching and merges second finger print information to form third finger print information with first finger print information
The step of.
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|---|---|---|---|
| CN201510464722.7A CN105654027B (en) | 2015-07-31 | 2015-07-31 | A kind of method and device of fingerprint recognition |
| PCT/CN2015/095433 WO2017020447A1 (en) | 2015-07-31 | 2015-11-24 | Fingerprint recognition method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510464722.7A CN105654027B (en) | 2015-07-31 | 2015-07-31 | A kind of method and device of fingerprint recognition |
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| CN105654027B true CN105654027B (en) | 2019-08-02 |
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| CN105868613A (en) * | 2016-06-08 | 2016-08-17 | 广东欧珀移动通信有限公司 | Biometric feature recognition method, biometric feature recognition device and mobile terminal |
| CN106203295B (en) * | 2016-06-30 | 2020-02-21 | 联想(北京)有限公司 | Fingerprint detection method and electronic equipment |
| CN106295539A (en) * | 2016-08-03 | 2017-01-04 | 乐视控股（北京）有限公司 | Fingerprint identification method, fingerprint identification device and terminal unit |
| CN106650569B (en) * | 2016-09-05 | 2019-08-16 | 北京小米移动软件有限公司 | Fingerprint input method and device |
| CN106897598B (en) * | 2017-02-23 | 2020-11-24 | 金华他山科技咨询服务有限公司 | Method and device for automatically inputting fingerprint |
| CN107316027B (en) * | 2017-06-27 | 2020-05-15 | 倪燕平 | Sharing equipment system and fingerprint identification method for sharing equipment |
| EP3444746A1 (en) | 2017-07-05 | 2019-02-20 | Shenzhen Goodix Technology Co., Ltd. | Method, device, chip and terminal device for fingerprint collection |
| CN107368816B (en) * | 2017-07-26 | 2020-04-14 | 北京集创北方科技股份有限公司 | Biometric feature recognition method, biometric feature recognition device and detection system |
| CN111695370B (en) * | 2019-03-11 | 2023-05-23 | 上海箩箕技术有限公司 | Fingerprint input method and device |
| CN110427741B (en) * | 2019-07-31 | 2021-07-27 | Oppo广东移动通信有限公司 | Fingerprint identification method and related product |
| CN110532958B (en) * | 2019-08-30 | 2023-02-10 | 上海浦东发展银行股份有限公司信用卡中心 | FingerPrint identification method for equipment based on FingerPrint browser information acquisition |
| CN112613016A (en) * | 2020-12-18 | 2021-04-06 | 超越科技股份有限公司 | Fingerprint identification starting method and device and computer |
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| CN102693420A (en) * | 2012-05-25 | 2012-09-26 | 深圳市亚略特生物识别科技有限公司 | Automatic updating method for fingerprint template |
| CN104281841A (en) * | 2014-09-30 | 2015-01-14 | 深圳市汇顶科技股份有限公司 | Fingerprint identification system and fingerprint processing method and device thereof |
| CN104766052A (en) * | 2015-03-24 | 2015-07-08 | 广州视源电子科技股份有限公司 | Face recognition method, system and user terminal and server |
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| CN105654027A (en) | 2016-06-08 |
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