CN106203034B - A kind of unlocked by fingerprint method and terminal - Google Patents

A kind of unlocked by fingerprint method and terminal Download PDF

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Publication number
CN106203034B
CN106203034B CN201610503615.5A CN201610503615A CN106203034B CN 106203034 B CN106203034 B CN 106203034B CN 201610503615 A CN201610503615 A CN 201610503615A CN 106203034 B CN106203034 B CN 106203034B
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China
Prior art keywords
fingerprint
fingerprint template
template
preset
preset fingerprint
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CN106203034A (en
Inventor
周意保
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201610503615.5A priority Critical patent/CN106203034B/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00006Acquiring or recognising fingerprints or palmprints
    • G06K9/00087Matching; Classification

Abstract

The embodiment of the invention discloses a kind of unlocked by fingerprint method and terminal, this method includes:Obtain fingerprint image, the fingerprint image is matched with M preset fingerprint template of the first kind fingerprint template in preset fingerprint template set, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, it includes N M preset fingerprint templates, N number of preset fingerprint template belongs to same fingerprint, the N is the integer more than M, the M is positive integer, any one in the fingerprint image and the M preset fingerprint template is when the match is successful, the fingerprint image is matched with the N M preset fingerprint templates, any one in the fingerprint image and the N M preset fingerprint templates is when the match is successful, realize unlocked by fingerprint.First fingerprint image can be matched with first kind fingerprint template, if the match is successful, just be matched with Equations of The Second Kind fingerprint template by the embodiment of the present invention, therefore, matching efficiency can be improved, to lift unlocked by fingerprint efficiency.

Description

A kind of unlocked by fingerprint method and terminal
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of unlocked by fingerprint and terminal.
Background technology
With the fast development of information technology, the use of terminal (such as mobile phone, tablet personal computer) is increasingly popularized.Fingerprint Identification technology is as the standard configuration technology in terminal, and fingerprint identification technology can be not only used for the unblock, wake-up, mobile payment of terminal Etc. in be used widely.While fingerprint identification technology is popular, in order to realize quick release, the unlocked time of terminal It is the direct concern of terminal manufacturer.
Under normal circumstances, in terminal can the multiple fingers of typing fingerprint, each fingerprint have one it is one's own default Multiple preset fingerprint templates are included in fingerprint template collection, the preset fingerprint template set, therefore, the process of unlocked by fingerprint are being realized In, often the fingerprint image of collection multiple preset fingerprint template sets corresponding with multiple fingerprints are matched, thus, fingerprint Unblock is less efficient.
The content of the invention
The embodiments of the invention provide a kind of unlocked by fingerprint method and terminal, to improve unlocked by fingerprint efficiency.
First aspect of the embodiment of the present invention provides a kind of unlocked by fingerprint method, including:
Obtain fingerprint image;
M preset fingerprint template of the first kind fingerprint template in the fingerprint image and preset fingerprint template set is carried out Matching, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, and it includes N-M preset fingerprint template, described N number of preset fingerprint template belongs to same fingerprint, and the N is the integer more than the M, and the M is positive integer;
Any one in the fingerprint image and the M preset fingerprint template is when the match is successful, by the fingerprint Image is matched with the N-M preset fingerprint template;
Any one in the fingerprint image and the N-M preset fingerprint template realizes fingerprint when the match is successful Unblock.
Second aspect of the embodiment of the present invention provides a kind of terminal, including:
Acquiring unit, for obtaining fingerprint image;
Matching unit, for the fingerprint image and first in preset fingerprint template set for obtaining the acquiring unit M preset fingerprint template of class fingerprint template is matched, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint mould Plate, it includes N-M preset fingerprint template, and N number of preset fingerprint template belongs to same fingerprint, and the N is more than the M Integer, the M be positive integer;
The matching unit, is additionally operable to:
The matching unit matching result for the fingerprint image with it is any one in the M preset fingerprint template It is individual when the match is successful, the fingerprint image is matched with the N-M preset fingerprint template;
Unlocking unit, is the fingerprint image and the N-M default fingers for the matching result in the matching unit Any one in line template realizes unlocked by fingerprint when the match is successful.
The third aspect of the embodiment of the present invention provides a kind of terminal, including:
Processor and memory;
Wherein, the processor is used to call the executable program code in the memory, performs first aspect Some or all of step.
Implement the embodiment of the present invention, have the advantages that:
As can be seen that the embodiment of the present invention is by obtaining fingerprint image, by fingerprint image and preset fingerprint template set M preset fingerprint template of first kind fingerprint template is matched, wherein, preset fingerprint template set also includes Equations of The Second Kind fingerprint mould Plate, it includes N-M preset fingerprint template, and N number of preset fingerprint template belongs to same fingerprint, and N is the integer more than M, and M is just Integer, when the match is successful for fingerprint image and any one in M preset fingerprint template, fingerprint image and N-M are preset Fingerprint template is matched, and when the match is successful for fingerprint image and any one in N-M preset fingerprint template, realizes fingerprint Unblock.So that, can be first by fingerprint image and first kind fingerprint mould when fingerprint image is matched with multiple preset fingerprint templates Plate is matched, if the match is successful, is just matched with Equations of The Second Kind fingerprint template, therefore, can improve matching efficiency, is referred to being lifted Line unlocks efficiency.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below by using required in embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the first embodiment of unlocked by fingerprint method disclosed in the embodiment of the present invention;
Fig. 2 is a kind of schematic flow sheet of the second embodiment of unlocked by fingerprint method disclosed in the embodiment of the present invention;
Fig. 3 a are a kind of structural representations of the first embodiment of terminal disclosed in the embodiment of the present invention;
Fig. 3 b are the structural representations of the matching unit of the terminal described in Fig. 3 a disclosed in the embodiment of the present invention;
Fig. 3 c are a kind of another structural representations of the first embodiment of terminal disclosed in the embodiment of the present invention;
Fig. 3 d are a kind of another structural representations of the first embodiment of terminal disclosed in the embodiment of the present invention;
Fig. 4 is a kind of structural representation of the second embodiment of terminal disclosed in the embodiment of the present invention;
Fig. 5 is a kind of structural representation of mobile phone disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and the accompanying drawing and " Four " etc. be to be used to distinguish different objects, rather than for describing particular order.In addition, term " comprising " and " having " and it Any deformation, it is intended that covering non-exclusive is included.For example contain the process of series of steps or unit, method, be The step of system, product or equipment are not limited to list or unit, but the step of alternatively also include not listing or list Member, or alternatively also include for the intrinsic other steps of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can be wrapped in conjunction with the embodiments In at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and Implicitly understand, embodiment described herein can be combined with other embodiments.
Terminal described by the embodiment of the present invention can include smart mobile phone (such as Android phone, iOS mobile phones, Windows Phone mobile phones etc.), tablet personal computer, palm PC, notebook computer, mobile internet device (MID, Mobile Internet Devices) or Wearable etc., above-mentioned terminal is only citing, and non exhaustive, including but not limited to above-mentioned end End.
Referring to Fig. 1, being a kind of first embodiment schematic flow sheet of unlocked by fingerprint provided in an embodiment of the present invention.This reality The unlocked by fingerprint described in example is applied, is comprised the following steps:
101st, fingerprint image is obtained.
In the specific implementation, during user's pressing fingerprint recognition module, terminal can be determined by fingerprint recognition module The acquisition range of fingerprint recognition module, and above-mentioned acquisition range is divided into multiple regions, obtain signal to noise ratio in the plurality of region Fingerprint image corresponding to maximum region.Wherein, acquisition range be primarily referred to as user's pressing fingerprint recognition module by being pressed with Scope is imitated, fingerprint recognition module gathers pixel by multiple induction electrodes of fingerprint collecting chip, in the position institute not being pressed The capacitance of corresponding induction electrode collection is 0, and the capacitance of the induction electrode collection corresponding to the position being pressed is more than 0.
Alternatively, fingerprint image can be the fingerprint image gathered during user presses fingerprint recognition module, or, It can be the fingerprint image in being stored in locally.
Alternatively, step 101 can also be comprised the following steps:
11), when user presses fingerprint recognition module, multiple capacitances are gathered using the fingerprint recognition module;
12) the multiple capacitance region, is divided into many sub-regions;
13), at least one capacitance is chosen from each subregion in the multiple subregion;
14) average of the capacitance of the selection, is calculated;
15) binary conversion treatment, is carried out to the multiple capacitance according to the average;
16) the multiple capacitance after binary conversion treatment, is converted into fingerprint image.
From the foregoing, during above-mentioned multiple capacitances can be for user's pressing fingerprint recognition module, being occurred by capacitance Multiple capacitances of change can generate fingerprint image.Specifically, multiple capacitance regions can be divided into many sub-regions, The number of subregion can be 2, and 3,4 etc., the pixel number that each subregion is included can identical or part sub-district The pixel number in domain is identical.Then a capacitance is at least selected from each subregion in many sub-regions, so The purpose done is capacitance can be sampled in regional extent as much as possible, and then, obtained capacitance is taken Value, using average as binary-state threshold, can so improve the accuracy of binary-state threshold so that the fingerprint image after binary conversion treatment As including characteristic point as far as possible or feature lines.
102nd, by M preset fingerprint template of the first kind fingerprint template in the fingerprint image and preset fingerprint template set Matched, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, and it includes N-M preset fingerprint template, N number of preset fingerprint template belongs to same fingerprint, and the N is the integer more than the M, and the M is positive integer.
Wherein, preset fingerprint template set includes the N number of preset fingerprint template for belonging to same fingerprint, N number of preset fingerprint mould Include to include in two class fingerprint templates, first kind fingerprint template in plate and included in M preset fingerprint template, Equations of The Second Kind fingerprint template N-M preset fingerprint template, N is the integer more than M, and M is positive integer.As to how will be N number of pre- in preset fingerprint template set If fingerprint template is divided into two classes, in the following manner is referred to, for example, randomly selecting M preset fingerprint in N number of preset fingerprint template Then template, regard remaining preset fingerprint template as Equations of The Second Kind fingerprint template as first kind fingerprint template;In another example, by N Individual preset fingerprint template is ranked up according to the order of successful number of times from more to less is matched, and will be matched successful number of times most Then M few preset fingerprint template, regard remaining preset fingerprint template as Equations of The Second Kind fingerprint as first kind fingerprint template Template.
Alternatively, step 102 can be comprised the steps of:
21) characteristic point of the fingerprint image, is extracted;
22), the characteristic point of M preset fingerprint template of the first kind fingerprint template in acquisition preset fingerprint template set, is obtained To the M groups characteristic point;
23) it is, according to the feature point number many priority match principles that the characteristic point of the fingerprint image and the M groups is special Levy and matched.
From the foregoing, it will be observed that the characteristic point of extractable fingerprint image, wherein, the extraction algorithm of characteristic point may include but not only limit In:Harris Robust Algorithm of Image Corner Extraction, scale invariant feature extraction algorithm (Scale Invariant Feature Transform, SIFT) etc., it can be also certainly other algorithms, not limit herein.Similarly, default refer to also is extracted respectively after the same method The characteristic point of M preset fingerprint template of the first kind fingerprint template in line template set, each preset fingerprint template includes one Group characteristic point.Certainly, the characteristic point of M preset fingerprint template of the first kind fingerprint template in preset fingerprint template set can held Predefined before row step 101, then, preserve above-mentioned M groups characteristic point.The M group characteristic points can be ranked up, then, pressed According to many priority match principles of feature point number, the characteristic point of fingerprint image is matched with M group characteristic points, i.e. first by M groups Feature point number is most in characteristic point one group is matched with fingerprint image, if it fails to match, by the spy in M group characteristic points Levy a number more than second one group is matched with fingerprint image, by that analogy.
Alternatively, certain step 102 can also use multiple threads or process, and be about to fingerprint image and preset fingerprint M preset fingerprint template of the first kind fingerprint template in template set is matched, for example, M process, each process is used to Fingerprint image is matched with one in M preset fingerprint template.
Alternatively, can also be according to random sequence by first in fingerprint image and preset fingerprint template set in step 102 M preset fingerprint template of class fingerprint template is matched.
Alternatively, when fingerprint image and M preset fingerprint template are mismatched, then the fingerprint image can be illustrated not Come from the fingerprint belonging to M preset fingerprint template, then user can be pointed out to re-enter fingerprint image, or, by fingerprint image As being matched with other preset fingerprint template sets.
103rd, any one in the fingerprint image and the M preset fingerprint template be when the match is successful, will described in Fingerprint image is matched with the N-M preset fingerprint template.
Alternatively, step 103 may include following steps:
31) matching frequency of the N-M preset fingerprint template, is obtained;
32), according to matching frequency order from high to low by the fingerprint image and the N-M preset fingerprint mould Plate is matched.
From the foregoing, it will be observed that the matching frequency of N-M preset fingerprint template can be obtained in advance before step 101, for any The matching frequency of one preset fingerprint template can be calculated according to equation below:
Matching frequency=be matched number of times/unblock number of times;
Alternatively, due in releasing process each time and the preset fingerprint template of not all is matched, thus, some are pre- If fingerprint template will not be then matched.The high preset fingerprint template of matching frequency can preferentially be entered with N-M preset fingerprint template Row matching, as long as fingerprint image and one in N-M preset fingerprint template when the match is successful, then executable step 104, works as finger Print image and one in N-M preset fingerprint template is when the match is successful, the remaining preset fingerprint template not being matched then In secondary releasing process, without matching.
104th, any one in the fingerprint image and the N-M preset fingerprint template is when the match is successful, realization Unlocked by fingerprint.
Wherein, when the match is successful for fingerprint image and any one in N-M preset fingerprint template, achievable fingerprint solution Lock, the unlocked by fingerprint includes the function being unlocked the need for each side is related in terminal using fingerprint.For example, in end In putting out under screen state, unlocked by fingerprint is realized, the display screen of terminal is lighted, and show the desktop after unblock;Or, in end Desktop after under bright screen state, realizing that unlocked by fingerprint, display are unlocked;Or, it is in terminal under released state, can be to end At least one application at end is unlocked, that is, start this at least one application or show at least one application it is a certain should The default page;Or, it is in and is put out under screen state in terminal, at least one application of terminal can be unlocked, that is, started At least one application or the default page for showing a certain application at least one application.Above-mentioned application can refer to for payment Line unblock application, file fingerprint unblock application, or other APP unlocked by fingerprint application.The above-mentioned default page can be homepage, Or, any page bound with fingerprint pre-set in a certain application.
It should be noted that in the present embodiment by the first kind fingerprint template in fingerprint image and preset fingerprint template set and Equations of The Second Kind fingerprint template is matched twice, in matching process twice, two unblock threshold values can be set, respectively to step Corresponding second unblock threshold value in the match is successful in 102 corresponding first unblock threshold value and step 103, wherein, the first unblock threshold Value is less than or equal to the second unblock threshold value, is divided to two application scenarios to be illustrated below, specific as follows:
First application scenarios, can be by the matching in step 102 when the first unblock threshold value is less than the second unblock threshold value Journey regards that the matching process in pre-matching, step 104 regards formal matching as.It is assumed that saving multiple default fingers in terminal In line template set, each preset fingerprint template set include multiple preset fingerprint templates, user input fingerprint image when, terminal without Method quickly knows which preset fingerprint template set the fingerprint image belongs to, it is then desired to determine which fingerprint image belongs to first Preset fingerprint template set, then, then multiple preset fingerprints in the preset fingerprint template set that fingerprint image is belonged to it Template is matched.Thus, can be by each preset fingerprint in fingerprint image and multiple preset fingerprint template sets in the present embodiment First kind fingerprint template in template set is matched, if the first kind fingerprint of fingerprint image and some preset fingerprint template set Template matches success, then illustrate that the fingerprint image probably belongs to the fingerprint corresponding to the preset fingerprint template set, then, then will Fingerprint image is matched with the Equations of The Second Kind fingerprint template in the preset fingerprint template set, therefore, because only with it is each it is default refer to Part preset fingerprint template in line template set is matched, and can reduce matching times, so that, improve unlocked by fingerprint efficiency.
Second application scenarios, can be by the matching in step 102 when the first unblock threshold value is equal to the second unblock threshold value Journey is regarded as to be matched for the first time, and the matching process in step 103 regards second of matching as.Match twice, terminal can be improved Security.
As seen from the above, matched in fingerprint image with multiple preset fingerprint templates in preset fingerprint template set When, first fingerprint image can be matched with a part of fingerprint template, if the match is successful, just be carried out with another part fingerprint template Matching, if matching is unsuccessful, points out user to re-enter fingerprint image, or, with the progress of other preset fingerprint template sets Match somebody with somebody, matching for the first time, if matching is unsuccessful, illustrates that fingerprint image is not from and preset fingerprint template equivalent to pre-matching Corresponding fingerprint, then terminate matching process, if the match is successful, illustrates that fingerprint image is result largely from and default finger The corresponding fingerprint of line template, when especially having multiple preset fingerprint template sets in the terminal, can improve matching efficiency, to carry Rise unlocked by fingerprint efficiency.
With above-described embodiment as one man, referring to Fig. 2, being the of a kind of unlocked by fingerprint method provided in an embodiment of the present invention Two embodiment schematic flow sheets.Unlocked by fingerprint method described in the present embodiment, comprises the following steps:
201st, N number of preset fingerprint template in preset fingerprint template set is matched two-by-two, obtains K matching value, its In, N number of preset fingerprint template belongs to same fingerprint, and the N, the K are positive integer.
Wherein, preset fingerprint template set includes N number of preset fingerprint template, and N number of preset fingerprint template is matched two-by-two It is that can obtain K matching value, for example, tri- preset fingerprint templates of A, B, C, then can be matched A with B, B is matched with C, A is matched with C, obtains three matching values.It is not difficult to know by permutation and combination knowledge, Belong in permutation and combination Prior art, does not make excessive explanation herein.
202nd, the association of each preset fingerprint template in N number of preset fingerprint template is determined according to the K matching value Degree.
Alternatively, the above-mentioned degree of association may be defined as associating between each preset fingerprint template and other preset fingerprint templates Degree, can basisIndividual matching value determines the degree of association of each preset fingerprint template in N number of preset fingerprint template, then, specifically Comprise the following steps:
21) other in preset fingerprint template i and N number of preset fingerprint template in addition to preset fingerprint template i, be can determine that N-1 matching value between preset fingerprint template, preset fingerprint template i is one in N number of preset fingerprint template;
22) N-1 matching value sum, is calculated;
23), the preset fingerprint template i degree of association=N-1 matching value sum/N.
203rd, M minimum preset fingerprint template of the degree of association in N number of preset fingerprint template is chosen as the first kind to refer to Line template, and by N-M preset fingerprint mould in N number of preset fingerprint template in addition to the M preset fingerprint template Plate is as Equations of The Second Kind fingerprint template, and the M is positive integer, and the N is more than the M.
Wherein, the N number of degree of association that can be obtained step 202 carries out ascending order and is ranked up, and chooses foremost M preset fingerprint template as the first fingerprint template, others are used as Equations of The Second Kind fingerprint template.
204th, fingerprint image is obtained.
205th, the fingerprint image is matched with the M preset fingerprint template.
206th, any one in the fingerprint image and the M preset fingerprint template be when the match is successful, will described in Fingerprint image is matched with the N-M preset fingerprint template.
207th, any one in the fingerprint image and the N-M preset fingerprint template is when the match is successful, realization Unlocked by fingerprint.
The specific explanations of the embodiment of the present invention refer to the explanation of the corresponding embodiment steps of Fig. 1, will not be described in detail herein.
It is below the device of the unlocked by fingerprint method described by implementation Fig. 1 or Fig. 2, it is specific as follows:
Fig. 3 a are referred to, are a kind of first embodiment structural representation of terminal provided in an embodiment of the present invention.This implementation Terminal described in example, including:Acquiring unit 301, matching unit 302 and unlocking unit 303, it is specific as follows:
Acquiring unit 301, for obtaining fingerprint image;
Matching unit 302, for the fingerprint image that obtains the acquiring unit 301 with preset fingerprint template set M preset fingerprint template of first kind fingerprint template matched, wherein, the preset fingerprint template set also includes Equations of The Second Kind Fingerprint template, it includes N-M preset fingerprint template, and N number of preset fingerprint template belongs to same fingerprint, and the N is big In the integer of the M, the M is positive integer;
The matching unit 302, is additionally operable to:
It is the fingerprint image and appointing in the M preset fingerprint template in the matching result of the matching unit 302 Meaning one is matched the fingerprint image with the N-M preset fingerprint template when the match is successful;
Unlocking unit 303, is the fingerprint image and the N-M for the matching result in the matching unit 302 Any one in preset fingerprint template realizes unlocked by fingerprint when the match is successful.
Alternatively, the matching unit 302 of the terminal as described by Fig. 3 b, Fig. 3 a includes:
Extraction module 3021, the characteristic point for extracting the fingerprint image;
First acquisition module 3022, the M default fingers for obtaining the first kind fingerprint template in preset fingerprint template set The characteristic point of line template, obtains the M groups characteristic point;
Matching module 3023, for according to many priority match principles of the feature point number by the feature of the fingerprint image Point is matched with the M groups characteristic point.
Alternatively, the acquiring unit 301 includes:
Acquisition module (is not marked) in figure, for when user presses fingerprint recognition module, utilizing the fingerprint recognition mould The multiple capacitances of group collection;
Division module (is not marked) in figure, for the multiple capacitance region to be divided into many sub-regions;
Module (not marked in figure) is chosen, for choosing at least one from each subregion in the multiple subregion Capacitance;
Computing module (is not marked) in figure, the average of the capacitance for calculating the selection;
Processing module (is not marked) in figure, for carrying out binary conversion treatment to the multiple capacitance according to the average;
Conversion module (is not marked) in figure, for the multiple capacitance after binary conversion treatment to be converted into fingerprint image Picture.
Alternatively, the matching unit 302 is additionally operable to:
Obtain the matching frequency of the N-M preset fingerprint template, and the order according to the matching frequency from high to low The fingerprint image is matched with the N-M preset fingerprint template.
Alternatively the terminal as described in Fig. 3 c, Fig. 3 a may also include:Pre-matching unit 304, determining unit 305 and choosing Unit 306 is taken, it is specific as follows:
Pre-matching unit 304, for before the acquiring unit 301 obtains fingerprint image, by preset fingerprint template set In N number of preset fingerprint template matched two-by-two, obtain K matching value, the K is positive integer;
Determining unit 305, for determining each default finger in N number of preset fingerprint template according to the K matching value The degree of association of line template;
Unit 306 is chosen, for choosing M minimum preset fingerprint template of the degree of association in N number of preset fingerprint template It is used as first kind fingerprint template.
Alternatively, the terminal as described in Fig. 3 d, Fig. 3 a may also include:
Tip element 307, it is pre- with the M for the fingerprint image for the matching result in the matching unit 302 If fingerprint template is mismatched, user is pointed out to re-enter fingerprint image,
Or,
The matching unit 302 also particularly useful for:
The matching unit 302 matching result for the fingerprint image and the M preset fingerprint template not Timing, the fingerprint image is matched with other preset fingerprint template sets.
Referring to Fig. 4, being a kind of second embodiment structural representation of terminal provided in an embodiment of the present invention.The present embodiment Described in terminal, including:At least one input equipment 1000;At least one output equipment 2000;At least one processor 3000, such as CPU;With memory 4000, above-mentioned input equipment 1000, output equipment 2000, processor 3000 and memory 4000 are connected by bus 5000.
Wherein, above-mentioned input equipment 1000 concretely contact panel, physical button or mouse, fingerprint recognition module etc. Deng.
Above-mentioned output equipment 2000 concretely display screen.
Above-mentioned memory 4000 can be high-speed RAM memory, or non-labile memory (non-volatile Memory), such as magnetic disk storage.Above-mentioned memory 4000 is used to store batch processing code, above-mentioned input equipment 1000, defeated Going out equipment 2000 and processor 3000 is used to call the program code stored in memory 4000, performs following operation:
Above-mentioned processor 3000, is used for:
Obtain fingerprint image;
M preset fingerprint template of the first kind fingerprint template in the fingerprint image and preset fingerprint template set is carried out Matching, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, and it includes N-M preset fingerprint template, described N number of preset fingerprint template belongs to same fingerprint, and the N is the integer more than the M, and the M is positive integer;
Any one in the fingerprint image and the M preset fingerprint template is when the match is successful, by the fingerprint Image is matched with the N-M preset fingerprint template;
Any one in the fingerprint image and the N-M preset fingerprint template realizes fingerprint when the match is successful Unblock.
Alternatively, above-mentioned processor 3000 is by the first kind fingerprint template in the fingerprint image and preset fingerprint template set M preset fingerprint template matched, including:
Extract the characteristic point of the fingerprint image;
The characteristic point of M preset fingerprint template of the first kind fingerprint template in acquisition preset fingerprint template set, obtains institute State M group characteristic points;
According to many priority match principles of the feature point number by the characteristic point of the fingerprint image and the M groups characteristic point Matched.
Alternatively, above-mentioned processor 3000 obtains fingerprint image, including:
When user presses fingerprint recognition module, multiple capacitances are gathered using the fingerprint recognition module;
The multiple capacitance region is divided into many sub-regions;
At least one capacitance is chosen from each subregion in the multiple subregion;
Calculate the average of the capacitance of the selection;
Binary conversion treatment is carried out to the multiple capacitance according to the average;
The multiple capacitance after binary conversion treatment is converted into fingerprint image.
Alternatively, above-mentioned processor 3000 is matched the fingerprint image with the N-M preset fingerprint template, bag Include:
Obtain the matching frequency of the N-M preset fingerprint template;
The fingerprint image is entered with the N-M preset fingerprint template according to the order of the matching frequency from high to low Row matching.
Alternatively, before the above-mentioned acquisition of processor 3000 fingerprint image, also particularly useful for:
N number of preset fingerprint template in preset fingerprint template set is matched two-by-two, K matching value is obtained, the K is Positive integer;
The degree of association of each preset fingerprint template in N number of preset fingerprint template is determined according to the K matching value;
M minimum preset fingerprint template of the degree of association is chosen in N number of preset fingerprint template as first kind fingerprint mould Plate.
Alternatively, above-mentioned processor 3000 is by the first kind fingerprint template in the fingerprint image and preset fingerprint template set M preset fingerprint template matched after, also particularly useful for:
When the fingerprint image and the M preset fingerprint template are mismatched, user is pointed out to re-enter fingerprint image Picture, or, the fingerprint image is matched with other preset fingerprint template sets.
Fig. 5 is illustrated that the block diagram of the part-structure of the mobile phone related to terminal provided in an embodiment of the present invention.With reference to figure 5, mobile phone includes:Radio frequency (Radio Frequency, RF) circuit 510, memory 520, input block 530, display unit 540, Sensor 550, voicefrequency circuit 560, Wireless Fidelity (wireless fidelity, WiFi) module 570, processor 580 and The grade part of power supply 590.It will be understood by those skilled in the art that the handset structure shown in Fig. 5 does not constitute the restriction to mobile phone, It can include than illustrating more or less parts, either combine some parts or different parts arrangement.
Each component parts of mobile phone is specifically introduced with reference to Fig. 5:
RF circuits 510 can be used for receive and send messages or communication process in, the reception and transmission of signal, especially, by base station After downlink information is received, handled to processor 580;In addition, being sent to base station by up data are designed.Generally, RF circuits 510 Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition, RF circuits 510 can also be communicated by radio communication with network and other equipment. Above-mentioned radio communication can use any communication standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), WCDMA (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), Email, Short Message Service (Short Messaging Service, SMS) etc..
Memory 520 can be used for storage software program and module, and processor 580 is stored in memory 520 by operation Software program and module, so as to perform various function application and the data processing of mobile phone.Memory 520 can mainly include Storing program area and storage data field, wherein, the application journey that storing program area can be needed for storage program area, at least one function Sequence (such as sound-playing function, image player function etc.) etc.;Storage data field can be stored uses what is created according to mobile phone Data (such as voice data, phone directory etc.) etc..In addition, memory 520 can include high-speed random access memory, can be with Including nonvolatile memory, for example, at least one disk memory, flush memory device or other volatile solid-states Part.
Input block 530 can be used for the numeral or character information for receiving input, and produce with the user of mobile phone set with And the relevant key signals input of function control.Specifically, input block 530 may include that contact panel 531 and other inputs are set Standby 532.Contact panel 531, also referred to as touch-screen, collecting touch operation of the user on or near it, (such as user uses The operation of any suitable object such as finger, stylus or annex on contact panel 531 or near contact panel 531), and root Corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 531 may include touch detecting apparatus and touch Two parts of controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, Transmit a signal to touch controller;Touch controller receives touch information from touch detecting apparatus, and is converted into touching Point coordinates, then give processor 580, and the order sent of reception processing device 580 and can be performed.Furthermore, it is possible to using electricity The polytypes such as resistive, condenser type, infrared ray and surface acoustic wave realize contact panel 531.Except contact panel 531, input Unit 530 can also include other input equipments 532.Specifically, other input equipments 532 can include but is not limited to secondary or physical bond One or more in disk, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Display unit 540 can be used for the various of the information that is inputted by user of display or the information for being supplied to user and mobile phone Menu.Display unit 540 may include display panel 541, optionally, can use liquid crystal display (Liquid Crystal Display, LCD), the form such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) it is aobvious to configure Show panel 541.Further, contact panel 531 can cover display panel 541, when contact panel 531 is detected thereon or attached After near touch operation, processor 580 is sent to determine the type of touch event, with preprocessor 580 according to touch event Type corresponding visual output is provided on display panel 541.Although in Figure 5, contact panel 531 and display panel 541 It is input and the input function that mobile phone is realized as two independent parts, but in some embodiments it is possible to by touch-control Panel 531 and the input that is integrated and realizing mobile phone of display panel 541 and output function.
Mobile phone may also include at least one sensor 550, such as optical sensor, motion sensor and other sensors. Specifically, optical sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can be according to ambient light Light and shade adjust the brightness of display panel 541, proximity transducer can close display panel 541 when mobile phone is moved in one's ear And/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (generally three axles) acceleration Size, size and the direction of gravity are can detect that when static, available for identification mobile phone posture application (such as horizontal/vertical screen is cut Change, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.;May be used also as mobile phone The other sensors such as gyroscope, barometer, hygrometer, thermometer, the infrared ray sensor of configuration, will not be repeated here.
Voicefrequency circuit 560, loudspeaker 561, microphone 562 can provide the COBBAIF between user and mobile phone.Audio-frequency electric Electric signal after the voice data received conversion can be transferred to loudspeaker 561, sound is converted to by loudspeaker 561 by road 560 Signal output;On the other hand, the voice signal of collection is converted to electric signal by microphone 562, by voicefrequency circuit 560 receive after turn It is changed to voice data, then after voice data output processor 580 is handled, through RF circuits 510 to be sent to such as another mobile phone, Or export voice data to memory 520 so as to further processing.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronicses postal by WiFi module 570 Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 5 is shown WiFi module 570, but it is understood that, it is simultaneously not belonging to must be configured into for mobile phone, can not change as needed completely Become in the essential scope of invention and omit.
Processor 580 is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, is led to Cross operation or perform and be stored in software program and/or module in memory 520, and call and be stored in memory 520 Data, perform the various functions and processing data of mobile phone, so as to carry out integral monitoring to mobile phone.Optionally, processor 580 can be wrapped Include one or more processing units;It is preferred that, processor 580 can integrated application processor and modem processor, wherein, should Operating system, user interface and application program etc. are mainly handled with processor, modem processor mainly handles radio communication. It is understood that above-mentioned modem processor can not also be integrated into processor 580.
Mobile phone also includes the power supply 590 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe Reason system and processor 580 are logically contiguous, so as to realize management charging, electric discharge and power managed by power-supply management system Etc. function.
Although not shown, mobile phone can also include camera, bluetooth module etc., will not be repeated here.
In previous embodiment, the structure realization that each step method flow can be based on the terminal.Wherein sensor 550 or Contact panel 531 can be used as fingerprint recognition module.
The embodiment of the present invention also provides a kind of computer-readable storage medium, wherein, the computer-readable storage medium can be stored with journey Sequence, the program includes the part or all of step of any unlocked by fingerprint method described in the above method embodiment when performing Suddenly.
Although combining each embodiment herein, invention has been described, however, implementing the present invention for required protection During, those skilled in the art are by checking the accompanying drawing, disclosure and appended claims, it will be appreciated that and it is real Other changes of the existing open embodiment.In the claims, the word of " comprising " (comprising) one is not excluded for other compositions Part or step, "a" or "an" are not excluded for multiple situations.Single processor or other units can realize claim In some functions enumerating.Mutually different has been recited in mutually different dependent some measures, it is not intended that these are arranged Apply to combine and produce good effect.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment) or computer journey Sequence product.Therefore, in terms of the present invention can be using complete hardware embodiment, complete software embodiment or combination software and hardware The form of embodiment.Moreover, the present invention can be used in one or more calculating for wherein including computer usable program code The computer program that machine usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.Computer program is stored/distributed in suitable medium, is provided together with other hardware or as the one of hardware Part, it would however also be possible to employ other distribution forms, such as passes through the wired or wireless telecommunication systems of Internet or other.
The present invention be with reference to the method for the embodiment of the present invention, device (equipment) and computer program product flow chart with/ Or block diagram is described.It should be understood that can by each flow in computer program instructions implementation process figure and/or block diagram and/ Or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided To the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce one Individual machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for realizing The device for the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.
Although with reference to specific features and embodiment, invention has been described, it is clear that, do not departing from this hair In the case of bright spirit and scope, various modifications and combinations can be carried out to it.Correspondingly, the specification and drawings are only institute The exemplary illustration of the invention that attached claim is defined, and be considered as covered in the scope of the invention any and all and repair Change, change, combining or equivalent.Obviously, those skilled in the art can to the present invention carry out it is various change and modification without Depart from the spirit and scope of the present invention.So, if the present invention these modifications and variations belong to the claims in the present invention and its Within the scope of equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (13)

1. a kind of unlocked by fingerprint method, it is characterised in that including:
Obtain fingerprint image;
By the M preset fingerprint template progress of the first kind fingerprint template in the fingerprint image and preset fingerprint template set Match somebody with somebody, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, and it includes N-M preset fingerprint template, the N Individual preset fingerprint template belongs to same fingerprint, and the N is the integer more than the M, and the M is positive integer;
Any one in the fingerprint image and the M preset fingerprint template is when the match is successful, by the fingerprint image Matched with the N-M preset fingerprint template;
Any one in the fingerprint image and the N-M preset fingerprint template realizes unlocked by fingerprint when the match is successful.
2. according to the method described in claim 1, it is characterised in that described by the fingerprint image and preset fingerprint template set M preset fingerprint template of first kind fingerprint template matched, including:
Extract the characteristic point of the fingerprint image;
The characteristic point of M preset fingerprint template of the first kind fingerprint template in acquisition preset fingerprint template set, obtains M group features Point;
The characteristic point of the fingerprint image and the M groups characteristic point are carried out according to the feature point number many priority match principles Matching.
3. the method according to any one of claim 1 or 2, it is characterised in that the acquisition fingerprint image, including:
When user presses fingerprint recognition module, multiple capacitances are gathered using the fingerprint recognition module;
The multiple capacitance region is divided into many sub-regions;
At least one capacitance is chosen from each subregion in the multiple subregion;
Calculate the average of the capacitance of the selection;
Binary conversion treatment is carried out to the multiple capacitance according to the average;
The multiple capacitance after binary conversion treatment is converted into fingerprint image.
4. the method according to any one of claim 1 or 2, it is characterised in that described by the fingerprint image and the N-M Individual preset fingerprint template is matched, including:
Obtain the matching frequency of the N-M preset fingerprint template;
According to the order of the matching frequency from high to low by the fingerprint image and the N-M preset fingerprint template progress Match somebody with somebody.
5. the method according to any one of claim 1 or 2, it is characterised in that before the acquisition fingerprint image, the side Method also includes:
N number of preset fingerprint template in preset fingerprint template set is matched two-by-two, K matching value is obtained, the K is just whole Number;
The degree of association of each preset fingerprint template in N number of preset fingerprint template is determined according to the K matching value;
M minimum preset fingerprint template of the degree of association is chosen in N number of preset fingerprint template as first kind fingerprint template.
6. the method according to any one of claim 1 or 2, it is characterised in that described by the fingerprint image and default finger After M preset fingerprint template of the first kind fingerprint template in line template set is matched, methods described also includes:
When the fingerprint image and the M preset fingerprint template are mismatched, user is pointed out to re-enter fingerprint image, or Person, the fingerprint image is matched with other preset fingerprint template sets.
7. a kind of terminal, it is characterised in that including:
Acquiring unit, for obtaining fingerprint image;
Matching unit, the fingerprint image and the first kind in preset fingerprint template set for the acquiring unit to be obtained refer to M preset fingerprint template of line template is matched, wherein, the preset fingerprint template set also includes Equations of The Second Kind fingerprint template, It includes N-M preset fingerprint template, and N number of preset fingerprint template belongs to same fingerprint, and the N is more than the M's Integer, the M is positive integer;
The matching unit, is additionally operable to:
It is the fingerprint image and any one in the M preset fingerprint template in the matching result of the matching unit During with success, the fingerprint image is matched with the N-M preset fingerprint template;
Unlocking unit, is the fingerprint image and the N-M preset fingerprint mould for the matching result in the matching unit Any one in plate realizes unlocked by fingerprint when the match is successful.
8. terminal according to claim 7, it is characterised in that the matching unit includes:
Extraction module, the characteristic point for extracting the fingerprint image;
First acquisition module, M preset fingerprint template for obtaining the first kind fingerprint template in preset fingerprint template set Characteristic point, obtains M group characteristic points;
Matching module, for according to many priority match principles of the feature point number by the characteristic point of the fingerprint image with it is described M group characteristic points are matched.
9. the terminal according to any one of claim 7 or 8, it is characterised in that the acquiring unit includes:
Acquisition module, for when user presses fingerprint recognition module, multiple capacitances to be gathered using the fingerprint recognition module;
Division module, for the multiple capacitance region to be divided into many sub-regions;
Module is chosen, for choosing at least one capacitance from each subregion in the multiple subregion;
Computing module, the average of the capacitance for calculating the selection;
Processing module, for carrying out binary conversion treatment to the multiple capacitance according to the average;
Conversion module, for the multiple capacitance after binary conversion treatment to be converted into fingerprint image.
10. the terminal according to any one of claim 7 or 8, it is characterised in that the matching unit is additionally operable to:
Obtain the matching frequency of the N-M preset fingerprint template, and according to the order of the matching frequency from high to low by institute Fingerprint image is stated to be matched with the N-M preset fingerprint template.
11. the terminal according to any one of claim 7 or 8, it is characterised in that the terminal also includes:
Pre-matching unit, for before the acquiring unit obtains fingerprint image, will be in preset fingerprint template set it is N number of default Fingerprint template is matched two-by-two, obtains K matching value, and the K is positive integer;
Determining unit, for determining each preset fingerprint template in N number of preset fingerprint template according to the K matching value The degree of association;
Unit is chosen, for choosing in N number of preset fingerprint template M minimum preset fingerprint template of the degree of association as first Class fingerprint template.
12. the terminal according to any one of claim 7 or 8, it is characterised in that the terminal also includes:
Tip element, is the fingerprint image and the M preset fingerprint template for the matching result in the matching unit When mismatching, user is pointed out to re-enter fingerprint image,
Or,
The matching unit also particularly useful for:
, will when the matching result of the matching unit mismatches for the fingerprint image with the M preset fingerprint template The fingerprint image is matched with other preset fingerprint template sets.
13. a kind of terminal, it is characterised in that including:
Processor and memory;Wherein, the processor is by calling the code in the memory or instructing to perform such as power Profit requires the method described in 1-6 any one.
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CN106845413B (en) * 2017-01-23 2020-01-14 Oppo广东移动通信有限公司 Fingerprint identification method and mobile terminal
CN107077679A (en) * 2017-02-16 2017-08-18 深圳市汇顶科技股份有限公司 Method of calibration, device and transaction system based on fingerprint recognition
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.

Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.