CN105956447A - Fingerprint authentication method and terminal - Google Patents
Fingerprint authentication method and terminal Download PDFInfo
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- CN105956447A CN105956447A CN201610311457.3A CN201610311457A CN105956447A CN 105956447 A CN105956447 A CN 105956447A CN 201610311457 A CN201610311457 A CN 201610311457A CN 105956447 A CN105956447 A CN 105956447A
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- China
- Prior art keywords
- fingerprint
- sample characteristics
- unblock
- prestored
- touch operation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/36—User authentication by graphic or iconic representation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2133—Verifying human interaction, e.g., Captcha
Abstract
Embodiments of the invention disclose a fingerprint authentication method and a terminal. The method comprises the steps of extracting first characteristic data of a first fingerprint image if the first fingerprint image is obtained in a fingerprint verification region; sensing a touch operation in the fingerprint verification region; generating a corresponding unlocking graph according to the touch operation; judging whether the first characteristic data is matched with pre-stored first sample characteristic data or not, and judging whether the unlocking graph is matched with a preset unlocking graph or not; and if the first characteristic data is matched with the pre-stored first sample characteristic data and the unlocking graph is matched with the preset unlocking graph, passing the verification. The embodiment of the invention furthermore discloses the terminal. According to the embodiments of the invention, the verification can be passed only when the first characteristic data is matched with the pre-stored first sample characteristic data and the graph is matched with the preset unlocking graph, so that the fingerprint authentication security is improved and the user information leakage is prevented.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of fingerprint verification method and terminal.
Background technology
Finger print identifying refers to there is scraggly lines on the positive surface skin of finger tips, and it contains substantial amounts of information.
The lines of these skins is different on pattern, breakpoint and intersection point, they is claimed in information processing
Make " feature ", and these features have uniqueness and permanent, can be a people with his fingerprint pair
Should get up, by comparing fingerprint characteristic and the fingerprint characteristic pre-saved, it is possible to verify its true identity.
Finger print identifying is mainly used in terminal screen unblock and safe consumption field at present.As for the safety of terminal,
Typically require and finger print identifying password is set, and by reading the fingerprint characteristic data of user, and by this feature number
Compare according to the sample characteristics data prestored, to carry out authentication, thus ensure that user in terminal
The safety of information.But, along with increasing that fingerprint uses, there is the risk of leakage in finger print information.It is known that
If user touches the object of certain any surface finish, such as glass and smart mobile phone, then can be passed through this
A little his fingerprints of object de-duplicate, once finger print information is revealed, it would be possible to cause the leakage of information of terminal user.
Therefore, a kind of fingerprint verification method that can improve finger print identifying safety and terminal it are badly in need of at present.
Summary of the invention
The embodiment of the present invention provides a kind of fingerprint verification method and terminal, and it can improve finger print identifying safety.
First aspect, embodiments provides a kind of fingerprint verification method, if obtaining including fingerprint authentication district
Get the first fingerprint image, extract the fisrt feature data of described first fingerprint image；Sensing fingerprint authentication district
On touch operation；Generate according to described touch operation and unlock figure accordingly；Judge described fisrt feature number
According to whether matching with the first sample characteristics data prestored and judging that described unblock figure and default unblock set figure
Whether shape matches；If described fisrt feature data and described the first sample characteristics data match prestored,
And described unblock figure sets figure with default unblock and matches, by certification.
On the other hand, embodiments provide a kind of terminal, including extraction unit, if for fingerprint inspection
Card district gets the first fingerprint image, extracts the fisrt feature data of described first fingerprint image；Sensing unit,
For sensing the touch operation in fingerprint authentication district；Signal generating unit, for generating phase according to described touch operation
The unblock figure answered；Judging unit, for judging described fisrt feature data and the first sample characteristics prestored
Whether data match and judge that described unblock figure and default unblock set whether figure matches；Authentication ' unit,
If for described fisrt feature data and described the first sample characteristics data match prestored, and described unblock
Figure sets figure with default unblock and matches, by certification.
The embodiment of the present invention is by extracting the fisrt feature data of the first fingerprint graph, and sensing is in fingerprint authentication district
On touch operation, and formed according to touch operation and unlock figure, it is judged that fisrt feature data and the prestored
Whether one sample characteristics data match, and judge with default unblock, unlocking figure sets whether figure matches,
Only when fisrt feature data and the first sample characteristics data match prestored, and this unblock figure is with default
Unblock sets could pass through certification when figure matches, thus improves finger print identifying safety, and then prevents user
Information leakage.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiment of the present invention technical scheme, required in embodiment being described below
The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic flow diagram of a kind of fingerprint verification method that the embodiment of the present invention provides；
Fig. 2 is the sub-process schematic diagram of S104；
Fig. 3 is the schematic flow diagram of a kind of fingerprint verification method that another embodiment of the present invention provides；
Fig. 4 is the change in location schematic diagram of the predeterminable area that the embodiment of the present invention provides；
Fig. 5 is the schematic block diagram of a kind of terminal that the embodiment of the present invention provides；
Fig. 6 is the schematic block diagram of judging unit in Fig. 5；
Fig. 7 is the schematic block diagram of a kind of terminal that another embodiment of the present invention provides；
Fig. 8 is the structure composition schematic diagram of a kind of terminal that the embodiment of the present invention provides.
Detailed description of the invention
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 clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
Should be appreciated that when using in this specification and in the appended claims, term " includes " and " bag
Contain " indicate described feature, entirety, step, operation, element and/or the existence of assembly, but be not precluded from
One or more further features, entirety, step, operation, element, assembly and/or its set existence or add
Add.
See Fig. 1, be the schematic flow diagram of a kind of fingerprint verification method that the embodiment of the present invention provides.This fingerprint
Authentication method may operate in smart mobile phone (such as Android phone, IOS mobile phone etc.), panel computer or electronics
In the terminals such as reader.This fingerprint verification method can be used for being unlocked screen or safe consumption field.As
Shown in figure, the method comprising the steps of S101～S105.
S101, if fingerprint authentication district gets the first fingerprint image, extracts the first of described first fingerprint image
Characteristic.
In embodiments of the present invention, user can be by fingerprint authentication district input first finger of fingerprint reading systems
Print image.This fingerprint reading systems be a kind of by light fingerprint sensor by the fingerprint imaging on finger, then
Transmit in the data base of processor, and and data base in the first sample characteristics data of prestoring compare,
To identify a kind of equipment of fingerprint owner's identity.When fingerprint authentication district gets the first fingerprint of user's input
After figure, need to carry out fingerprint pretreatment.The purpose of fingerprint pretreatment is to improve the first fingerprint of user's input
The quality of image and enhancing contrast ratio, definition, in order to carry out characteristic extraction.Fingerprint pretreatment master
The enhancing of fingerprint segmentation to be included, fingerprint, binaryzation and micronization processes.Owing to fingerprint pretreatment is disclosed
Prior art, here is omitted.
Specifically, the fisrt feature data of the first fingerprint image refer to that finds from the first fingerprint image is claimed
For the data point of node, it may refer to the bifurcated of stricture of vagina lines, terminates or the coordinate position at the place that loops.Generally
One fingerprint image has 50 data points, and each data point has the uniqueness characteristic of more than 7 kinds, because of
This, a fingerprint image can produce at least 490 characteristics.Certainly the algorithm having is data point and direction
Information combination can produce more characteristic, and wherein directional information indicates the pass between each data point
System.When extracting the fisrt feature data of the first fingerprint image of user's input, can be from the first fingerprint image
Central area outwards extract with circumference forms of radiation, it is also possible to from marginal area to the first fingerprint image
The mode of central area extract, be not construed as limiting herein.
S102, the touch operation in sensing fingerprint authentication district.
In order to increase the safety of finger print identifying, need to sense further the touch operation in fingerprint authentication district.
Specifically, in embodiments of the present invention, this touch operation can be clicking operation, slide or point
Hit and add slide etc..
In certain embodiments, can sense tactile by arranging corresponding touch panel in this fingerprint authentication district
Touch operation.Specifically, this touch panel is arranged at the lower section in described fingerprint authentication district, the chi of this touch panel
The very little size equal to this checking district.In some embodiments, the size of this touch screen can also more than or
Size less than this checking district.
It is to be appreciated that in certain embodiments, it is also possible to by the setting at least in this fingerprint authentication district
Individual sensor senses touch operation.Preferably, this sensor is multiple, and the plurality of sensor is arranged at institute
State the lower section in fingerprint authentication district, and in default pattern arrangement.
S103, generates according to touch operation and unlocks figure accordingly.
Specifically, figure is unlocked accordingly according to the touch operation generation sensed in step S102.This unblock
Figure is can be the one in straight line, triangle, square, c-type figure, is certainly not limited thereto.
S104, it is judged that whether fisrt feature data match with the first sample characteristics data prestored and judge to solve
With default unblock, lock figure sets whether figure matches.
Specifically, in the present invention implements, the first sample characteristics data have referred to finger print identifying needs
First sample characteristics data can be set to mould by the template fingerprint image characteristic of correspondence data stored in advance
Whole characteristics of plate fingerprint image such as 490, then by the fisrt feature data of extraction and prestored
One sample characteristics data are compared.
Due to user input fingerprint image there may be some differences with the sample fingerprint image prestored, as with
The fingerprint positions of family input extracting mode that is different or that use is different, thus causes the fisrt feature data extracted
Can not be completely the same with the first sample characteristics data prestored.In embodiments of the present invention, by special by first
The the first sample characteristics data levying data and prestore are compared, thus obtain the first similarity.This first phase
It is fisrt feature data and the measurement mode of the first sample characteristics data consistency prestored, by first like degree
Similarity is compared with default first similarity threshold, if the first similarity is more than or equal to presetting the first phase
Seemingly spend threshold value, it is determined that fisrt feature data and the first sample characteristics data match prestored；If first is similar
Degree is less than presetting the first similarity threshold, it is determined that fisrt feature data are with the first sample characteristics data prestored not
Coupling.
Illustrate, if presetting the first similarity threshold is 90%, fisrt feature data and the first sample prestored
Eigen data are compared and obtained the first similarity is 95%, then the first similarity is more than presetting the first phase
Seemingly spend threshold value, it is determined that fisrt feature data and the first sample characteristics data match prestored；If fisrt feature
Data are compared with the first sample characteristics data prestored and obtained the first similarity is 85%, then the first phase
Like degree less than presetting the first similarity threshold, it is determined that fisrt feature data and the first sample characteristics data prestored
Do not mate.
Specifically, in embodiments of the present invention, unblock figure is unlocked figure phase comparison to judge to be with presetting
No match, the method that Fuzzy comparisons can be used or the comparison method accurately compared.Fuzzy comparisons refers to lead to
Crossing by unblock figure compared with the shape that default unblock sets figure, the method is not limiting as touch operation and is referring to
Change location point in stricture of vagina checking district；Accurately compare is by the touch operation accurate position in fingerprint authentication district
Putting compared with the unblock figure that change formed sets figure with default unblock, the method needs in fingerprint authentication district
On carry out accurate touch operation.Illustrating, default unblock sets figure as " C " word figure, uses and obscures
During the method compared, as long as carrying out touch operation in any region in fingerprint authentication district and generating " C " word figure,
" C " word generated is unlocked figure compare with " C " the word figure preset.And for example, solution is preset
Lock sets figure as triangle, when using the method accurately compared, and the region that need to will specify in fingerprint authentication district
Inside carry out touch operation and generate triangle, the triangle of generation is compared with the triangle preset.
See Fig. 2, in embodiments of the present invention, it is judged that unlock figure and set whether figure matches with default unblock,
As it can be seen, include step S201～202.
S201, unlocks image phase comparison to obtain the second similarity by unblock figure with presetting.
In order to improve the percent of pass of finger print identifying, in embodiments of the present invention, figure will be unlocked to unlock with presetting
Figure phase comparison thus obtain the second similarity, this second similarity be unblock figure with preset unlock figure
Conforming measurement mode, and the second similarity is compared with default second similarity threshold, to judge
Unlock figure and unlock whether figure matches with presetting.Wherein, presetting the second similarity threshold can be by many
Secondary experiment obtains, thus the second similarity threshold is cured as an invariable value, naturally it is also possible to
By the way of man-machine interaction, default second similarity threshold is arranged to the value that user can input and change,
It is not construed as limiting herein.
S202, if the second similarity is more than or equal to presetting the second similarity threshold, it is determined that unlock figure with pre-
If unblock sets figure and matches.
Specifically, if the second similarity more than or equal to preset the second similarity threshold, it is determined that unlock figure with
Default unblock sets figure and matches；If the second similarity is less than presetting the second similarity threshold, it is determined that unlock figure
Shape sets figure with default unblock and does not mates.
Illustrate, if presetting the second similarity threshold is 80%, unlock figure compared with default unblock image
To obtain the second similarity for 90%, then the second similarity is more than presetting the second similarity threshold, it is determined that solve
Lock figure sets figure with default unblock and matches；If unlocking figure and presetting unblock image phase comparison to obtain the
Two similarities are 70%, then the second similarity is less than presetting the second similarity threshold, it is determined that unlock figure with pre-
If unblock sets figure and does not mates.
S105, if fisrt feature data and the first sample characteristics data match prestored, and unlock figure with
Default unblock sets figure and matches, by certification.
Specifically, in embodiments of the present invention, only when fisrt feature data and the fisrt feature data prestored
Match, unlock figure simultaneously and unlock figure and match with presetting and could pass through certification, otherwise authentification failure.
The embodiment of the present invention is by extracting the fisrt feature data of the first fingerprint graph, and sensing is in fingerprint authentication district
On touch operation, and formed according to touch operation and unlock figure, it is judged that fisrt feature data and the prestored
Whether one sample characteristics data match, and judge with default unblock, unlocking figure sets whether figure matches,
Only when fisrt feature data and the first sample characteristics data match prestored, and this unblock figure is with default
Unblock sets could pass through certification when figure matches, thus improves finger print identifying safety, and then prevents user
Information leakage.
See Fig. 3, be the schematic flow diagram of a kind of fingerprint verification method that another embodiment of the present invention provides.As
Shown in figure, the method comprising the steps of S301～S308.
S301, if fingerprint authentication district gets the first fingerprint image, extracts the first of described first fingerprint image
Characteristic.
S302, the touch operation in sensing fingerprint authentication district.
Specifically, step S301～S302 refer to described above, and here is omitted.
S303, if sensing the touch operation in fingerprint authentication district, obtains the second fingerprint image in fingerprint authentication district
Picture.
S304, extracts the second feature data of the second fingerprint image.
S305, it is judged that second feature data whether with the second sample characteristics data match prestored.
S306, if matching, generating according to described touch operation and unlocking figure accordingly.
Specifically, in order to be increased the safety of fingerprint authentication further by fingerprint characteristic data comparison,
In the embodiment of the present invention, by obtaining the second fingerprint image in fingerprint authentication district, and extract this second fingerprint
The second feature data of image, it is judged that second feature data and the second sample characteristics data prestored are mutually
Join.
Wherein, in certain embodiments, the second sample characteristics data prestored and the first sample characteristics prestored
Data are identical.Illustrate, when user uses arbitrary finger to carry out touch operation in fingerprint authentication district, obtain
Take the second fingerprint image of corresponding finger, if second feature data corresponding to this second fingerprint image with prestore
Second sample characteristics data are not mated, and illustrate that the finger used in fingerprint authentication district is corresponding with the first fingerprint graph
Finger be not same finger, according to this limit user use same finger to carry out touch operation in fingerprint authentication district,
The most user-friendly, on the other hand improve the safety of fingerprint authentication.If this second fingerprint image
Corresponding second feature data and the second sample characteristics data match prestored, generate according to this touch operation
Unlock figure accordingly.
In further embodiments, the second sample characteristics data prestored are the first sample characteristics data prestored
A part, the predeterminable area on the first fingerprint graph can be chosen in fingerprint authentication district, carry out touch operation.
Wherein, predeterminable area can be any region on the first fingerprint image, and the position of this predeterminable area, size,
Shapes etc. are not restricted.After have chosen predeterminable area, predeterminable area is touched in fingerprint authentication district
Touch operation, compared with the second sample characteristics data prestored by the second feature data extracting predeterminable area
Right, to determine that this predeterminable area is the predeterminable area on the finger of corresponding first fingerprint graph, and according to presetting
The region touch operation in fingerprint authentication district generates and unlocks figure accordingly.Accurate for fingerprint characteristic comparison
Property, the characteristic number corresponding to zone line that the second sample characteristics data are the first fingerprint image preferably prestored
According to, will the central area of the first fingerprint image as this predeterminable area.
Illustrate, as predeterminable area being chosen to be the central area of the first fingerprint image, and this central area
It it is the circle with the first fingerprint image center as the center of circle.This predeterminable area is provided with 4 change in location, reference
Fig. 4, the change in location schematic diagram of the predeterminable area that the embodiment of the present invention provides.As it can be seen, by predeterminable area
A moves to the right of fingerprint authentication district center, lower section, left and top successively, according to this preset areas
The change in location in territory is to generate tetragon.
It should be noted that in certain embodiments, in order to improve the security logic of finger print identifying, by second
Fingerprint image is set as the two or more regions on the first fingerprint image, the i.e. selection of predeterminable area
Can be two or more on the first fingerprint image, and the position of this predeterminable area, size, shape etc. are equal
It is not restricted.If after have chosen two predeterminable areas, respectively by two predeterminable areas at fingerprint by preset areas
Territory carries out touch operation in fingerprint authentication district, and generates corresponding for two predeterminable area correspondences
Unlock figure.
S307, it is judged that whether fisrt feature data match with the first sample characteristics data prestored and judge to solve
With default unblock, lock figure sets whether figure matches.
If it should be noted that the second fingerprint image is the two or more districts on the first fingerprint image
The selection in territory, i.e. predeterminable area can be two or more on the first fingerprint image, then need to judge respectively
Whether unblock figure and corresponding default unblock figure that multiple predeterminable area correspondences generate match.
S308, if fisrt feature data and the first sample characteristics data match prestored, and unlock figure with
Default unblock sets figure and matches, by certification.
Specifically, step S307～S308 refer to described above, and here is omitted.
The embodiment of the present invention is by extracting the fisrt feature data of the first fingerprint graph, and sensing is in fingerprint authentication district
On touch operation, and formed according to touch operation and unlock figure, it is judged that fisrt feature data and the prestored
Whether one sample characteristics data match, and judge with default unblock, unlocking figure sets whether figure matches,
Only when fisrt feature data and the first sample characteristics data match prestored, and this unblock figure is with default
Unblock sets could pass through certification when figure matches, thus improves finger print identifying safety, and then prevents user
Information leakage.
With reference to Fig. 5, the schematic block diagram of a kind of terminal that the embodiment of the present invention provides, this terminal 40 includes carrying
Take unit 41, sensing unit 42, signal generating unit 43, judging unit 44 and authentication ' unit 45.
Extraction unit 41, if getting the first fingerprint image for fingerprint authentication district, extracts described first fingerprint
The fisrt feature data of image.
Sensing unit 42, for sensing the touch operation in fingerprint authentication district.
Signal generating unit 43, unlocks figure accordingly for generating according to described touch operation.
With the first sample characteristics data prestored whether judging unit 44, for judging described fisrt feature data
Match and judge that described unblock figure and default unblock set whether figure matches.
Further, with reference to Fig. 6, it is judged that the schematic block diagram of unit.As it can be seen, judging unit 44 wraps
Include comparing unit 441 and identifying unit 442.
Comparing unit 441, for unlocking image phase comparison to obtain similarity by unblock figure with presetting；
Identifying unit 442, if for described similarity more than or equal to presetting similarity threshold, it is determined that described solution
Lock figure sets figure with default unblock and matches.
Authentication ' unit 45, if for described fisrt feature data and described the first sample characteristics data phase prestored
Mate, and described unblock figure sets figure with default unblock and matches, by certification.
The embodiment of the present invention extracts the fisrt feature data of the first fingerprint graph by extraction unit 41, and sensing is single
The touch operation in fingerprint authentication district of unit 42 sensing, and formed solution by signal generating unit 43 according to touch operation
Lock figure, it is judged that unit 44 judges fisrt feature data with whether the first sample characteristics data prestored match,
And judge unlock figure set whether figure matches with default unblock, only when fisrt feature data with prestore
The first sample characteristics data match, and this unblock figure and default unblock set certification list when figure matches
Unit 35 could pass through certification, thus improves finger print identifying safety, and then prevents user profile from revealing.
With reference to Fig. 7, the schematic block diagram of a kind of terminal that another embodiment of the present invention provides, as it can be seen, be somebody's turn to do
Terminal 50 includes extraction unit 51, sensing unit 52, acquiring unit 53, judging unit 54, performance element
55, signal generating unit 56 and authentication ' unit 57.
Extraction unit 51, if getting the first fingerprint image for fingerprint authentication district, extracts described first fingerprint
The fisrt feature data of image, and extract the second feature data of described second fingerprint image.
Sensing unit 52, for sensing the touch operation in fingerprint authentication district.
Acquiring unit 53, if for the touch operation sensing fingerprint authentication district, obtains in fingerprint authentication district
Second fingerprint image.
Judging unit 54, for judge described second fingerprint image whether with the second sample characteristics data prestored
Match, and judge described fisrt feature data with the first sample characteristics data prestored and whether match and
Judge that described unblock figure and default unblock set whether figure matches.
Performance element 55, if for described second fingerprint image whether with the second sample characteristics data phase prestored
Coupling, performs described generation according to described touch operation and unlocks figure accordingly.
Signal generating unit 56, unlocks figure accordingly for generating according to described touch operation.
Authentication ' unit 57, if for described fisrt feature data and described the first sample characteristics data phase prestored
Mate, and described unblock figure sets figure with default unblock and matches, by certification.
Further, the second sample characteristics data prestored described in and described the first sample characteristics data prestored
Identical or described in the second sample characteristics data of prestoring be described in prestore the one of the first sample characteristics data
Part.
Further, described second fingerprint image is two or more on described first fingerprint image
Region.
The embodiment of the present invention extracts the fisrt feature data of the first fingerprint graph by extraction unit 51, and sensing is single
The unblock figure that the touch operation in fingerprint authentication district of unit 52 sensing is formed, and by judging unit 54
Whether the first sample characteristics data judging fisrt feature data and prestore match, and judge to unlock figure
Set whether figure matches with default unblock, only when fisrt feature data and the first sample characteristics number prestored
According to matching, and this figure is set with default unblock and is authenticated by authentication ' unit 57 when figure matches, from
And improve finger print identifying safety, and then prevent user profile from revealing.
With reference to Fig. 8, the structure composition schematic diagram of a kind of terminal that the embodiment of the present invention provides.This terminal 60 is wrapped
Include: input equipment 601, memorizer 602 and processor 603, above-mentioned input equipment 601, memorizer
602 and processor 603 be communicatively coupled by bus 604.Wherein:
Input equipment 601, for receiving the fingerprint image inputted in fingerprint authentication district and receiving at fingerprint inspection
Touch operation in card district.In implementing, this input equipment 601 can include keyboard, acoustic input device,
Touch input equipment etc..
Memorizer 602, for storing the routine data with various functions.In implementing, the present invention implements
The memorizer 602 of example can be system storage, such as, volatile (such as RAM), non-volatile
(such as ROM, flash memory etc.), or both combinations.In implementing, depositing of the embodiment of the present invention
Reservoir 602 can also is that the external memory storage outside system, such as, disk, CD, tape etc..
Processor 603, for calling the routine data of storage in memorizer 602, and performs following operation:
If fingerprint authentication district gets the first fingerprint image, extract the fisrt feature number of described first fingerprint image
According to；
Touch operation in sensing fingerprint authentication district；
Generate according to described touch operation and unlock figure accordingly；
Whether the first sample characteristics data judging described fisrt feature data and prestore match and judge described
Unlock figure and set whether figure matches with default unblock；
If described fisrt feature data and described the first sample characteristics data match prestored, and described unblock
Figure sets figure with default unblock and matches, by certification.
In certain embodiments, processor 603, also perform to operate as follows:
If fingerprint authentication district gets the first fingerprint image, extract the fisrt feature number of described first fingerprint image
According to；
If sensing the touch operation in fingerprint authentication district, obtain the second fingerprint image in fingerprint authentication district；
Extract the second feature data of described second fingerprint image；
Judge described second feature data whether with the second sample characteristics data match prestored；
If matching, performing described generation according to described touch operation and unlocking figure accordingly.
Touch operation in sensing fingerprint authentication district；
Generate according to described touch operation and unlock figure accordingly；
Whether the first sample characteristics data judging described fisrt feature data and prestore match and judge described
Unlock figure and set whether figure matches with default unblock；
If described fisrt feature data and described the first sample characteristics data match prestored, and described unblock
Figure sets figure with default unblock and matches, by certification.
The embodiment of the present invention is by extracting the fisrt feature data of the first fingerprint graph, and sensing is in fingerprint authentication district
On touch operation, and formed according to touch operation and unlock figure, it is judged that fisrt feature data and the prestored
Whether one sample characteristics data match, and judge with default unblock, unlocking figure sets whether figure matches,
Only when fisrt feature data and the first sample characteristics data match prestored, and this unblock figure is with default
Unblock sets could pass through certification when figure matches, thus improves finger print identifying safety, and then prevents user
Information leakage.
In several embodiments provided herein, it should be understood that disclosed method, only show
Meaning property, can realize by another way.
The sequence of steps of the method for the embodiment of the present invention can be adjusted according to actual needs, merges or delete.
The unit of the terminal of the embodiment of the present invention can carry out integrating according to actual needs, Further Division or delete.
These are only the preferred embodiment of invention, rather than invention is done any pro forma restriction.This area
Technical staff can impose change and the improvement of various equivalent on the basis of above-described embodiment, all in claim
In the range of the equivalent variations done or modification, within the scope of the comprising of invention all should be fallen into.
Claims (10)
1. a fingerprint verification method, it is characterised in that including:
If fingerprint authentication district gets the first fingerprint image, extract the fisrt feature number of described first fingerprint image
According to；
Touch operation in sensing fingerprint authentication district；
Generate according to described touch operation and unlock figure accordingly；
Whether the first sample characteristics data judging described fisrt feature data and prestore match and judge described
Unlock figure and set whether figure matches with default unblock；
If described fisrt feature data and described the first sample characteristics data match prestored, and described unblock
Figure sets figure with default unblock and matches, by certification.
2. the method for claim 1, it is characterised in that generate accordingly according to touch operation described
Before unlocking figure, described method also includes:
If sensing the touch operation in fingerprint authentication district, obtain the second fingerprint image in fingerprint authentication district；
Extract the second feature data of described second fingerprint image；
Judge described second feature data whether with the second sample characteristics data match prestored；
If matching, performing described generation according to described touch operation and unlocking figure accordingly.
3. method as claimed in claim 2, it is characterised in that the second sample characteristics data prestored described in: with
Described the first sample characteristics data prestored identical or described in the second sample characteristics data of prestoring be described
A part for the first sample characteristics data prestored.
4. method as claimed in claim 2, it is characterised in that described second fingerprint image is described first finger
Two or more regions on print image.
5. the method for claim 1, it is characterised in that described judgement described unblock figure solves with presetting
Lock sets whether figure matches, including:
Unblock figure is unlocked image phase comparison to obtain similarity with presetting；
If described similarity is more than or equal to presetting similarity threshold, it is determined that described unblock figure unlocks with presetting
If figure matches.
6. a terminal, it is characterised in that including:
Extraction unit, if getting the first fingerprint image for fingerprint authentication district, extracts described first fingerprint image
The fisrt feature data of picture；
Sensing unit, for sensing the touch operation in fingerprint authentication district；
Signal generating unit, unlocks figure accordingly for generating according to described touch operation；
Judging unit, for judging described fisrt feature data and the first sample characteristics data prestored whether phase
Mate and judge that described unblock figure and default unblock set whether figure matches；
Authentication ' unit, if for described fisrt feature data and described the first sample characteristics data phase prestored
Join, and described unblock figure sets figure with default unblock and matches, by certification.
7. terminal as claimed in claim 6, it is characterised in that if described terminal also includes for sensing finger
The touch operation in stricture of vagina checking district, the acquiring unit of the second fingerprint image in acquisition fingerprint authentication district；
Described extraction unit is additionally operable to extract the second feature data of described second fingerprint image；
Described judging unit be additionally operable to judge described second fingerprint image whether with the second sample characteristics number prestored
According to matching；
If described second fingerprint image whether with the second sample characteristics data match prestored, described terminal is also
Including for performing the described performance element generating corresponding unblock figure according to described touch operation.
8. terminal as claimed in claim 7, it is characterised in that described in the second sample characteristics data of prestoring with
Described the first sample characteristics data prestored identical or described in the second sample characteristics data of prestoring be described
A part for the first sample characteristics data prestored.
9. terminal as claimed in claim 7, it is characterised in that described second fingerprint image is described first finger
Two or more regions on print image.
10. terminal as claimed in claim 6, it is characterised in that described judging unit includes:
Comparing unit, for unlocking image phase comparison to obtain similarity by unblock figure with presetting；
Identifying unit, if for described similarity more than or equal to presetting similarity threshold, it is determined that described unblock
Figure sets figure with default unblock and matches.
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| CN201610311457.3A CN105956447A (en) | 2016-05-12 | 2016-05-12 | Fingerprint authentication method and terminal |
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