CN106096353B - One kind solution lock control method and equipment - Google Patents
One kind solution lock control method and equipment Download PDFInfo
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- CN106096353B CN106096353B CN201610368035.XA CN201610368035A CN106096353B CN 106096353 B CN106096353 B CN 106096353B CN 201610368035 A CN201610368035 A CN 201610368035A CN 106096353 B CN106096353 B CN 106096353B
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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Abstract
The embodiment of the invention discloses one kind solution lock control method and equipment, the realization of wherein method includes：Obtain finger print data；When obtaining finger print data, user's finger humidity is obtained；If the user's finger humidity exceedes predetermined threshold, the information of output prompting replacement operation mode.During being unlocked using finger print data, if user's finger compares moistening and user will be caused can not to unlock success for a long time；For example：User just washes hand, in the case that finger is more moistened, and the quality of the fingerprint image of collection may be extremely undesirable；Replacement operation mode is pointed out in this case, it is possible to reduce the probability of failure is unlocked again, so as to shorten unlocked time.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of solution lock control method and equipment.
Background technology
Fingerprint image is the data using image format as the fingerprint of carrier.Fingerprint is by recessed in the finger pulp of human finger end
The lines that convex skin is formed.Fingerprint can make hand increase frictional force in contact subject, so as to be easier to have an effect and promptly thing
Part.It is self-assembling formation in human evolution's process type.Fingerprint is to be formed in the finger pulp of human finger end by concavo-convex skin
Lines, because the fingerprint of people is that nature-nurture is coefficient, it is also closely related with health, thus fingerprint everybody
All have, it is different, because fingerprint repetitive rate is minimum, about 1/15000000000th, therefore it is referred to as " human body identity card ".Exactly
This feature based on fingerprint, fingerprint is widely used as the information of authentication.
For example, fingerprint identification technology has become the standard configuration of main flow mobile terminal manufacturer flagship type.Fingerprint recognition is not only
It can be used for the functions such as the unblock and wake-up of mobile terminal, be also the important ring of mobile payment.Fingerprint pays and is meeting user
While property easy to use, to security it is also proposed that higher requirement.
The process of fingerprint recognition is divided into：Extract feature, preserve data and images match.
After the original fingerprint image of somatic fingerprint is read by fingerprint reading systems, the then registration with pre-saving
Fingerprint template carries out Feature Points Matching；It is unlocked after the match is successful.Equipment is from fingerprint image is read to unlocking successfully institute
The time needed is referred to as unlocked time.
The speed of unlocked time directly influences the efficiency that user uses equipment, more sensitive etc. especially for some
Treat that the time is more such.How to shorten unlocked time turns into the important directions that technical staff studies.
The content of the invention
The embodiments of the invention provide one kind solution lock control method and equipment, for shortening unlocked time.
On the one hand lock control method is solved the embodiments of the invention provide one kind, including：
Obtain finger print data；
When obtaining finger print data, user's finger humidity is obtained；
If the user's finger humidity exceedes predetermined threshold, the information of output prompting replacement operation mode.
In a kind of optional implementation, methods described also includes：
The targeted registered fingerprint of the finger print data is determined, using the finger print data and the registered fingerprint than carrying out
Compare；
If the unblock frequency of failure for the registered fingerprint reaches pre-determined number, and the user's finger humidity exceedes in advance
Determine threshold value, or, the unlocked time for the registered fingerprint exceedes scheduled time threshold value, and the user's finger humidity
More than predetermined threshold；Then perform the information of the output prompting replacement operation mode.
In a kind of optional implementation, before being compared using the finger print data and the registered fingerprint,
Methods described also includes：
Determine the pixel value of each pixel in the corresponding fingerprint image of the finger print data；Pixel according to target pixel points
Value, and the pixel adjacent with the target pixel points pixel value, calculate the grey decision-making of the target pixel points；The mesh
The pixel that mark pixel belongs in the fingerprint image；The grey decision-making of each pixel in the fingerprint image is obtained in calculating
Afterwards, the digit of the grey decision-making of the fingerprint image is determined；The digit of the grey decision-making of the fingerprint image is improved, by the fingerprint image
As being converted to target fingerprint image；
It is described using the finger print data and the registered fingerprint be compared including：
It is compared using the target fingerprint image and the registered fingerprint.
In a kind of optional implementation, the pixel value includes：
The capacitance of each pixel in the fingerprint image, or capacitance weighted value.
In a kind of optional implementation, the pixel value according to target pixel points, and with the object pixel
The pixel value of the adjacent pixel of point, calculating the grey decision-making of the target pixel points includes：
Determine central point pixel value in the default size contiguous range of the target pixel points, max pixel value, minimum
The pixel total number of pixel value and the default size contiguous range；
The grey decision-making for calculating the target pixel points is：Pixel total number * (the central point pixel values-minimum pixel
Value)/(max pixel value-minimum pixel value).It should be noted that grey decision-making is typically integer, so if calculating what is obtained
, it is necessary to round in the case of grey decision-making non-integer.
In a kind of optional implementation, the information of the output prompting replacement operation mode includes：
Finger is dried in output prompting, or, output prompting increase press pressure, or output prompting reduce press pressure,
Or, output prompting is replaced by vein unblock, or, output prompting is replaced by password unblock, or, output prompting is replaced by figure
Shape is unlocked.
Two aspects unlock control device the embodiments of the invention provide one kind, including：
Fingerprint acquiring unit, for obtaining finger print data；
Humidity acquiring unit, for when the fingerprint acquiring unit obtains finger print data, obtaining user's finger humidity；
Output unit is pointed out, if exceeding predetermined threshold, output prompting replacement operation side for the user's finger humidity
The information of formula.
In a kind of optional implementation, the equipment also includes：
Target determination unit, the registered fingerprint targeted for determining the finger print data；
Comparing unit, for being compared using the finger print data with the registered fingerprint ratio；
The prompting output unit, if reaching pre-determined number, and user's hand specifically for the unblock frequency of failure
Refer to humidity and exceed predetermined threshold, or, the unlocked time exceedes scheduled time threshold value, and the user's finger humidity exceedes in advance
Determine threshold value, then perform the information of the output prompting replacement operation mode.
In a kind of optional implementation, the equipment also includes：
Pixel value acquiring unit, for being compared in the comparing unit using the finger print data with the registered fingerprint
Pixel value to before, determining each pixel in the corresponding fingerprint image of the finger print data；
Grey decision-making computing unit is and adjacent with the target pixel points for the pixel value according to target pixel points
The pixel value of pixel, calculates the grey decision-making of the target pixel points；The target pixel points belong in the fingerprint image
Pixel；
Digit determining unit, for after calculating obtains the grey decision-making of each pixel in the fingerprint image, it is determined that described
The digit of the grey decision-making of fingerprint image；
Image conversion unit, the digit of the grey decision-making for improving the fingerprint image, the fingerprint image is converted to
Target fingerprint image；
The comparing unit, specifically for being compared using the target fingerprint image and the registered fingerprint.
In a kind of optional implementation, the pixel value includes：
The capacitance of each pixel in the fingerprint image, or capacitance weighted value.
In a kind of optional implementation, the grey decision-making computing unit, specifically for determining the target pixel points
Default size contiguous range in central point pixel value, max pixel value, minimum pixel value and it is described preset big small neighbourhood
The pixel total number of scope；
The grey decision-making for calculating the target pixel points is：Pixel total number * (the central point pixel values-minimum pixel
Value)/(max pixel value-minimum pixel value).
In a kind of optional implementation, the prompting output unit dries finger specifically for output prompting, or
Person, output prompting increase press pressure, either output prompting reduce press pressure or, output prompting be replaced by vein unblock,
Or, output prompting is replaced by password unblock, or, output prompting is replaced by figure unblock.
The three aspect embodiment of the present invention additionally provide a kind of terminal device, including：Processor and memory, wherein, it is described
Processor is used for the method for performing any one provided in an embodiment of the present invention.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：The mistake unlocked using finger print data
Cheng Zhong, if user's finger compares moistening and user will be caused can not to unlock success for a long time；For example：User just washes hand, hand
Refer in the case of more moistening, the quality of the fingerprint image of collection may be extremely undesirable；Behaviour is changed in prompting in this case
Make mode, it is possible to reduce unlock the probability of failure again, so as to shorten unlocked time.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is present invention method schematic flow sheet；
Fig. 2 is present invention method schematic flow sheet；
Fig. 3 is fingerprint chip structure schematic diagram of the embodiment of the present invention；
Fig. 4 is 32 grades of GTG schematic diagrames of the embodiment of the present invention；
Fig. 5 is 256 grades of GTG schematic diagrames of the embodiment of the present invention；
Fig. 6 is present invention method schematic flow sheet；
Fig. 7 is the fingerprint image that the embodiment of the present invention is gathered；
Fig. 8 is the fingerprint image after the embodiment of the present invention is handled；
Fig. 9 is that the embodiment of the present invention unlocks control device structural representation；
Figure 10 is that the embodiment of the present invention unlocks control device structural representation；
Figure 11 is that the embodiment of the present invention unlocks control device structural representation；
Figure 12 is terminal device structural representation of the embodiment of the present invention；
Figure 13 is terminal device structural representation of the embodiment of the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step it is described in detail, it is clear that described embodiment is only embodiment of the invention a part of, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Lock control method is solved the embodiments of the invention provide one kind, as shown in figure 1, including：
101：Obtain finger print data；
In the present embodiment, finger print data can be the finger print data of fingerprint collecting device collection, with the shape of fingerprint image
Formula is presented.
102：When obtaining finger print data, user's finger humidity is obtained；
The finger humidity of user can be obtained by humidity sensor, can be in user's pressing fingerprint collecting device procedures
Obtain user's finger humidity.
103：If above-mentioned user's finger humidity exceedes predetermined threshold, the information of output prompting replacement operation mode.
Here mode of operation can be understood as still using unlocked by fingerprint, but need replacement operation mode, for example：Carry
Show that user dries finger or the surface for cleaning fingerprint collecting equipment or changes unlocking manner, for example：It is replaced by password
Unblock or vein unblock etc..In addition, also other improper modes of operation may also cause fingerprint repeatedly to unlock failure,
For example：User's excessive forces are pressed or the pressing of too small power, therefore can also be that prompting decreases or increases press pressure here.
During being unlocked using finger print data, if user's finger compares moistening and user will be caused can not to solve for a long time
Lock successfully；For example：User just washes hand, in the case that finger is more moistened, and the quality of the fingerprint image of collection may extremely not
It is preferable；Replacement operation mode is pointed out in this case, it is possible to reduce the probability of failure is unlocked again, so that when shortening unblock
Between.
The embodiment of the present invention obtains the humidity of finger by humidity sensor, so as to accurately determine user's unblock failure
Reason, so as to accurately point out user's replacement operation mode.
In embodiments of the present invention, humidity is higher can not necessarily cause unblock to fail, for example：Using preferable fingerprint
Image correction algorithm makes original finger print data be apparent from characteristic point substantially, therefore the embodiment of the present invention is additionally provided such as lower section
Case：The above method also includes：
The targeted registered fingerprint of above-mentioned finger print data is determined, using above-mentioned finger print data and above-mentioned registered fingerprint than carrying out
Compare；
If the unblock frequency of failure for above-mentioned registered fingerprint reaches pre-determined number, and above-mentioned user's finger humidity exceedes in advance
Determine threshold value, or, the above-mentioned unlocked time for above-mentioned registered fingerprint exceedes scheduled time threshold value, and above-mentioned user's finger humidity
More than predetermined threshold；Then perform the information that replacement operation mode is pointed out in above-mentioned output.
Above-mentioned registered fingerprint is to be used to compare used fingerprint, is as a rule for the preset fingerprint number of unblock target
According to；Unblock target is the object that local unlocked by fingerprint needs to unlock, for example：Open screen, unblock application function and pay behaviour
Work etc. is any to be may relate to need the authenticated object by that could perform.For example, user input finger print data be for
Some objects is unlocked, and this object has the registered fingerprint that it binds, and determines that the targeted registration of above-mentioned finger print data refers to
Line is the registered fingerprint for the object binding for determining unblock.
Above-mentioned finger print data may be referred to existing fingerprint comparison algorithm with the mode that above-mentioned registered fingerprint is compared, right
This embodiment of the present invention does not make uniqueness restriction.In order to which the success rate for improving unlocked by fingerprint can also be first excellent to finger print data progress
Change is handled, and the feature of above-mentioned finger print data is become apparent and clearly.It is more preferred that the embodiment of the present invention gives one of which
Implementation, in subsequent embodiment, it will provide detailed description.
In the present embodiment, scheduled time threshold value is to need to point out user's replacement operation mode to determine that unlocked time is longer
Trigger condition, the predetermined value can weigh with passage time value, can also be weighed by unlocking the frequency of failure, both sides
Formula is all without the realization for having influence on the embodiment of the present invention, therefore the embodiment of the present invention does not make uniqueness restriction to this.
More specifically, the information of above-mentioned output prompting replacement operation mode includes：
Finger is dried in output prompting, or, output prompting increase press pressure, or output prompting reduce press pressure,
Or, output prompting is replaced by vein unblock, or, output prompting is replaced by password unblock, or, output prompting is replaced by figure
Shape is unlocked.
In the present embodiment, point out dry finger can be based on humidity sensor know user's finger moisten in the case of,
If it is determined that the fingerprint image that fingerprint collecting equipment is collected is a piece of black, peak valley difference is small and not moistening is caused, or
Peak valley difference is small and detects press pressure greatly, can point out to reduce press pressure；If the fingerprint image of fingerprint collecting equipment collection
As feature is few, the characteristic ratio of paddy is excessive in peak valley feature, or to detect press pressure too small, can point out to reduce pressing pressure
Power.Authentification failure caused by misoperation, it is also possible to have a lot, the citing of the embodiment of the present invention should not be construed as to of the invention real
The uniqueness for applying example is limited.
In order to improve the success rate of unlocked by fingerprint, it is being compared using above-mentioned finger print data and above-mentioned registered fingerprint
Before, processing can also be first optimized to finger print data, the feature of above-mentioned finger print data is become apparent and clearly.It is specific such as to scheme
Shown in 2, including：
201：Determine the pixel value of each pixel in the corresponding fingerprint image of finger print data；
In the present embodiment, fingerprint image is the fingerprint image for target fingerprint image, can be that other set
The fingerprint image that fingerprint image or the local device collection that preparation is sent are obtained；Pixel point value, is used in fingerprint image
The parameter of each pixel in measurement fingerprint image, by taking capacitive fingerprint collecting equipment as an example, the pixel value can be electric capacity
Capacitance after value or weighting.Different fingerprint image acquisition technologies can be to that should have different pixel values, to this
Inventive embodiments do not make uniqueness restriction.
201：According to the pixel value of the pixel value of target pixel points, and the pixel adjacent with above-mentioned target pixel points,
Calculate the grey decision-making of above-mentioned target pixel points；The pixel that above-mentioned target pixel points belong in above-mentioned fingerprint image；
Grey decision-making be pixel it is most dark it is black to most it is bright it is white between brightness hierarchical relationship；In Windows
In, usually 256 rank, digit is 8, a value per single order in correspondence 0~255, referred to as grey decision-making.
203：After calculating obtains the grey decision-making of each pixel in above-mentioned fingerprint image, the GTG of above-mentioned fingerprint image is determined
The digit of value；
Binary system is used in field of computer technology, it is assumed that digit is m, then there can be 2 m power GTGs by table
Show.For example：8 can represent 256 grey decision-makings.
204：The digit of the grey decision-making of above-mentioned fingerprint image is improved, above-mentioned fingerprint image is converted into target fingerprint image；
The embodiment of the present invention, by the processing of the pixel value to fingerprint image, obtains the grey decision-making of each pixel value, and according to
This determines the digit of the grey decision-making of the fingerprint image, and obtaining target by improving the digit of grey decision-making of the fingerprint image refers to
Print image, can make target fingerprint image relative to fingerprint image closer to real fingerprint image, and make target fingerprint figure
The feature of picture is more prominent, so as to be conducive to improving the discrimination of fingerprint image, and is further conducive to unblock rate and certification
The raising of efficiency.
Target fingerprint image is obtained in the present embodiment, is the fingerprint optimized for initial finger print data
Data, therefore in previous embodiment, it is above-mentioned using above-mentioned finger print data and above-mentioned registered fingerprint be compared including：Using upper
Target fingerprint image is stated to be compared with above-mentioned registered fingerprint.
Alternatively, above-mentioned pixel value includes：
The capacitance of each pixel in above-mentioned fingerprint image, or capacitance weighted value.
It is understood that different fingerprint image acquisition technologies can be to that should have different pixel values, therefore with electric capacity
Value, or the pixel value exemplified by the weighted value of capacitance, should not be construed as the uniqueness restriction to the embodiment of the present invention.
Alternatively, the present embodiment additionally provides the circular of grey decision-making, specific as follows：Above-mentioned foundation object pixel
The pixel value of point, and the pixel adjacent with above-mentioned target pixel points pixel value, calculate the GTG of above-mentioned target pixel points
Value includes：
Determine central point pixel value in the default size contiguous range of above-mentioned target pixel points, max pixel value, minimum
The pixel total number of pixel value and above-mentioned default size contiguous range；
The grey decision-making for calculating above-mentioned target pixel points is：Above-mentioned pixel total number * (central point pixel values-minimum pixel
Value)/(max pixel value-minimum pixel value).
In above-mentioned target pixel points and the pixel adjacent with above-mentioned target pixel points, positioned at the pixel of central point
Pixel value be central point pixel value, the maximum corresponding pixel value of pixel of pixel value is max pixel value, and pixel value is minimum
The corresponding pixel value of pixel be minimum pixel value.Pixel can be taken into full account by the calculation of the embodiment of the present invention
With the difference between surrounding pixel point, so that it is determined that a relatively reasonable grey decision-making.
Alternatively, the pixel value of the above-mentioned pixel adjacent with above-mentioned target pixel points includes：
The n*n pixel put centered on above-mentioned target pixel points, above-mentioned n is the odd number more than 1.
In the present embodiment, n values are the odd number more than 1, and target pixel points can so be located at and participates in grey decision-making meter
The center of calculation, is conducive to the accurate grey decision-making for determining target pixel points；The common values of wherein n can be 3 or 5, also may be used
To be other values；Less n can improve computational efficiency, and larger n can make fingerprint image more balanced, both balances,
5 or 7 can be used as compared with the figure of merit.
In embodiments of the present invention, the principle that fingerprint image is obtained is fingerprint chip internal pixel as m*n array
Point (pixel) point is constituted, as shown in figure 3, region shown in dotted line frame is fingerprint chip, the array in Fig. 3 has 56*192, and one has
During 10752 pixel points, fingerprint collecting, 10752 pixel values can be collected, corresponding each pixel values can be with
Showed by the form of image；
When finger down fingerprint module surface, each pixel points are with forming capacitance, electric capacity between finger surface
Value can according to the peak valley difference of fingerprint without same, because it is near with pixel points distance to refer to summit, and refer to paddy can be a little further.Fingerprint mould
Group can form a rough three-dimensional surface according to the capacitance size of 10752 pixels, be simulated by this three-dimensional surface
Fingerprint image.
Because the finger peak of finger and finger paddy direct range difference are too small, the peak-to-peak value of pixel values is flat relative to pixel
Average is too small, typically less than 5% change, so the picture quality obtained is excessively poor, a piece of pitch-black, black and white cannot be distinguished by,
The matching performance of fingerprint is well imagined below.
User presses overweight or kicks the beam and can cause fogging image when unlocked by fingerprint, and unblock mortality is carried
Rise, also user occurs weighing the situation while light when strip fingerprint module is pressed, easily, causes image uniform
Property it is poor, a black edge margin, is not easy to the identification of fingerprint characteristic on one side.
In order to solve the above technical problems, the embodiment of the present invention is by original fingerprint image (i.e. pending fingerprint image
Picture) GTG quantification treatment is carried out, before GTG quantification treatment is introduced, first introduce influence of the GTG to fingerprint image.
GTG refer to it is most dark it is black to most it is bright it is white between brightness hierarchical relationship.Comparison of light and shade and black-white colors transition side
The performance in face, image is more clear, and it is then better to get over nature excessively.Illustrate.On GTG, using 32 grades of GTGs and 256 grades
The performance of GTG is contrasted, as shown in Figure 4.In 32 grades of GTGs, almost all can distinguish it is not at the same level between color it is deep
Shallow difference, entire image uniformity is more preferably.
As shown in figure 5, being 256 grades of GTGs, in 256 grades of GTGs, color restoration capability has more obvious raising, upper left
Angle, which only has a small number of GTGs, clearly to differentiate, and the excessive scope of color-grading is wider, and contrast is more preferably.In addition, GTG is difficult to point
Distinguish that a portion reason is recognition capability of the human eye to color, will not be suffered from this for equipment.
Present invention method flow is illustrated, as shown in fig. 6, it is specific as follows, including：
601：Each pixel points take 3*3 pixel points formation neighborhood around；
In the present embodiment, 3*3 is only citing, other neighborhoods such as 5*5 or 7*7.
602：Enter line number Neo-Confucianism statistics to the pixel points in this neighborhood；
603：Determine the pixel data of 9 points, maximum (max) value, minimum (min) value and centerpoint value；
604：Calculate grey decision-making=whole pixel point sum * (centerpoint value-min)/(max- of the centre of neighbourhood point
min)；
605：Test out grey decision-making a little；
606:Digit quantization is carried out to grey decision-making, from low level to high-order quantification, such as is originally that 6 are quantified as 8 ashes
Rank, the definition of image more preferably, is more nearly actual fingerprint, improves fingerprint correctly unblock rate.
It is to weigh while the relatively light the right of the fingerprint gathered in the case of light, the wherein left side is heavier as shown in Figure 7, such as Fig. 8
It is shown, it is the fingerprint image treated through scheme of the embodiment of the present invention, whole fingerprint image is more uniform, no longer shows as weight
Situation about differing, fingerprint characteristic becomes apparent.
The embodiment of the present invention additionally provides a kind of unblock control device, as shown in figure 9, including：
Fingerprint acquiring unit 901, for obtaining finger print data；
Humidity acquiring unit 902, for when above-mentioned fingerprint acquiring unit obtains finger print data, obtaining user's finger wet
Degree；
Output unit 903 is pointed out, if exceeding predetermined threshold, output prompting replacement operation for above-mentioned user's finger humidity
The information of mode.
In the present embodiment, finger print data can be the finger print data of fingerprint collecting device collection, with the shape of fingerprint image
Formula is presented.The finger humidity of user can be obtained by humidity sensor, can be in user's pressing fingerprint collecting device procedures
Obtain user's finger humidity.
The embodiment of the present invention obtains the humidity of finger by humidity sensor, so as to accurately determine user's unblock failure
Reason, so as to accurately point out user's replacement operation mode.
Here mode of operation can be understood as still using unlocked by fingerprint, but need replacement operation mode, for example：Carry
Show that user dries finger or the surface for cleaning fingerprint collecting equipment or changes unlocking manner, for example：It is replaced by password
Unblock or vein unblock etc..In addition, also other improper modes of operation may also cause fingerprint repeatedly to unlock failure,
For example：User's excessive forces are pressed or the pressing of too small power, therefore can also be that prompting decreases or increases press pressure here.
During being unlocked using finger print data, if user's finger compares moistening and user will be caused can not to solve for a long time
Lock successfully；For example：User just washes hand, in the case that finger is more moistened, and the quality of the fingerprint image of collection may extremely not
It is preferable；Replacement operation mode is pointed out in this case, it is possible to reduce the probability of failure is unlocked again, so that when shortening unblock
Between.
In embodiments of the present invention, humidity is higher can not necessarily cause unblock to fail, for example：Using preferable fingerprint
Image correction algorithm makes original finger print data be apparent from characteristic point substantially, therefore the embodiment of the present invention is additionally provided such as lower section
Case：As shown in Figure 10, the said equipment also includes：
Target determination unit 1001, the registered fingerprint targeted for determining above-mentioned finger print data；
Comparing unit 1002, for being compared using above-mentioned finger print data with above-mentioned registered fingerprint ratio；
Above-mentioned prompting output unit 903, if reaching pre-determined number, and above-mentioned user specifically for the above-mentioned unblock frequency of failure
Finger humidity exceedes predetermined threshold, or, above-mentioned unlocked time exceedes scheduled time threshold value, and above-mentioned user's finger humidity exceedes
Predetermined threshold, then perform the information that replacement operation mode is pointed out in above-mentioned output.
Above-mentioned registered fingerprint is to be used to compare used fingerprint, is as a rule for the preset fingerprint number of unblock target
According to；Unblock target is the object that local unlocked by fingerprint needs to unlock, for example：Open screen, unblock application function and pay behaviour
Work etc. is any to be may relate to need the authenticated object by that could perform.
Above-mentioned finger print data may be referred to existing fingerprint comparison algorithm with the mode that above-mentioned registered fingerprint is compared, right
This embodiment of the present invention does not make uniqueness restriction.In order to which the success rate for improving unlocked by fingerprint can also be first excellent to finger print data progress
Change is handled, and the feature of above-mentioned finger print data is become apparent and clearly.It is more preferred that the embodiment of the present invention gives one of which
Implementation, in subsequent embodiment, it will provide detailed description.
In the present embodiment, scheduled time threshold value is to need to point out user's replacement operation mode to determine that unlocked time is longer
Trigger condition, the predetermined value can weigh with passage time value, can also be weighed by unlocking the frequency of failure, both sides
Formula is all without the realization for having influence on the embodiment of the present invention, therefore the embodiment of the present invention does not make uniqueness restriction to this.
In order to improve the success rate of unlocked by fingerprint, it is being compared using above-mentioned finger print data and above-mentioned registered fingerprint
Before, processing can also be first optimized to finger print data, the feature of above-mentioned finger print data is become apparent and clearly.Further
Ground, as shown in figure 11, the said equipment also include：
Pixel value acquiring unit 1101, for being referred in above-mentioned comparing unit 1002 using above-mentioned finger print data with above-mentioned registration
Before line is compared, the pixel value of each pixel in the corresponding fingerprint image of above-mentioned finger print data is determined；
Grey decision-making computing unit 1102, for according to target pixel points pixel value, and with above-mentioned target pixel points phase
The pixel value of adjacent pixel, calculates the grey decision-making of above-mentioned target pixel points；Above-mentioned target pixel points belong to above-mentioned fingerprint image
In pixel；
Digit determining unit 1103, for calculate obtain the grey decision-making of each pixel in above-mentioned fingerprint image after, it is determined that
The digit of the grey decision-making of above-mentioned fingerprint image；
Image conversion unit 1104, the digit of the grey decision-making for improving above-mentioned fingerprint image turns above-mentioned fingerprint image
It is changed to target fingerprint image；
Above-mentioned comparing unit 1002, specifically for being compared using above-mentioned target fingerprint image and above-mentioned registered fingerprint.
In the present embodiment, fingerprint image is the fingerprint image for target fingerprint image, can be that other set
The fingerprint image that fingerprint image or the local device collection that preparation is sent are obtained；Pixel point value, is used in fingerprint image
The parameter of each pixel in measurement fingerprint image, by taking capacitive fingerprint collecting equipment as an example, the pixel value can be electric capacity
Capacitance after value or weighting.Different fingerprint image acquisition technologies can be to that should have different pixel values, to this
Inventive embodiments do not make uniqueness restriction.
Grey decision-making be pixel it is most dark it is black to most it is bright it is white between brightness hierarchical relationship；In Windows
In, usually 256 rank, digit is 8, a value per single order in correspondence 0~255, referred to as grey decision-making.
Binary system is used in field of computer technology, it is assumed that digit is m, then there can be 2 m power GTGs by table
Show.For example：8 can represent 256 grey decision-makings.
The embodiment of the present invention, by the processing of the pixel value to fingerprint image, obtains the grey decision-making of each pixel value, and according to
This determines the digit of the grey decision-making of the fingerprint image, and obtaining target by improving the digit of grey decision-making of the fingerprint image refers to
Print image, can make target fingerprint image relative to fingerprint image closer to real fingerprint image, and make target fingerprint figure
The feature of picture is more prominent, so as to be conducive to improving the discrimination of fingerprint image, and is further conducive to unblock rate and certification
The raising of efficiency.
Target fingerprint image is obtained in the present embodiment, is the fingerprint optimized for initial finger print data
Data, therefore in previous embodiment, above-mentioned pixel value includes：
The capacitance of each pixel in above-mentioned fingerprint image, or capacitance weighted value.
It is understood that different fingerprint image acquisition technologies can be to that should have different pixel values, therefore with electric capacity
Value, or the pixel value exemplified by the weighted value of capacitance, should not be construed as the uniqueness restriction to the embodiment of the present invention.
Alternatively, the present embodiment additionally provides the circular of grey decision-making, specific as follows：Above-mentioned grey decision-making calculates single
Member 1102, the central point pixel value in default size contiguous range specifically for determining above-mentioned target pixel points, maximum pixel
The pixel total number of value, minimum pixel value and above-mentioned default size contiguous range；
The grey decision-making for calculating above-mentioned target pixel points is：Above-mentioned pixel total number * (central point pixel values-minimum pixel
Value)/(max pixel value-minimum pixel value).
In above-mentioned target pixel points and the pixel adjacent with above-mentioned target pixel points, positioned at the pixel of central point
Pixel value be central point pixel value, the maximum corresponding pixel value of pixel of pixel value is max pixel value, and pixel value is minimum
The corresponding pixel value of pixel be minimum pixel value.Pixel can be taken into full account by the calculation of the embodiment of the present invention
With the difference between surrounding pixel point, so that it is determined that a relatively reasonable grey decision-making.
Alternatively, the pixel value of the above-mentioned pixel adjacent with above-mentioned target pixel points includes：
The n*n pixel put centered on above-mentioned target pixel points, above-mentioned n is the odd number more than 1.
In the present embodiment, n values are the odd number more than 1, and target pixel points can so be located at and participates in grey decision-making meter
The center of calculation, is conducive to the accurate grey decision-making for determining target pixel points；The common values of wherein n can be 3 or 5, also may be used
To be other values；Less n can improve computational efficiency, and larger n can make fingerprint image more balanced, both balances,
5 or 7 can be used as compared with the figure of merit.
More specifically, above-mentioned prompting output unit 903, finger is dried specifically for output prompting, or, output prompting
Increase press pressure, either output prompting reduce press pressure or, output prompting be replaced by vein unblock, or, output is carried
Show and be replaced by password unblock, or, output prompting is replaced by figure unblock.
In the present embodiment, point out dry finger can be based on humidity sensor know user's finger moisten in the case of,
If it is determined that the fingerprint image that fingerprint collecting equipment is collected is a piece of black, peak valley difference is small and not moistening is caused, or
Peak valley difference is small and detects press pressure greatly, can point out to reduce press pressure；If the fingerprint image of fingerprint collecting equipment collection
As feature is few, the characteristic ratio of paddy is excessive in peak valley feature, or to detect press pressure too small, can point out to reduce pressing pressure
Power.Authentification failure caused by misoperation, it is also possible to have a lot, the citing of the embodiment of the present invention should not be construed as to of the invention real
The uniqueness for applying example is limited.
The embodiment of the present invention additionally provides a kind of terminal device, as shown in figure 12, including：Processor 1201 and memory
1202；The caching that wherein memory 1202 can be used for required for the execution data processing of processor 1201, can be also used for providing
Data and the memory space of the result data of acquisition that the execution data processing of processor 1201 is called；Can modeling as one
Block, terminal device can also include fingerprint collecting equipment 1203；If it should be noted that pending fingerprint image comes from
The fingerprint image of other equipment collection, local terminal can not have the fingerprint collecting equipment 1203；
Wherein, above-mentioned processor 1201, for obtaining finger print data；When obtaining finger print data, user's finger is obtained wet
Degree；If above-mentioned user's finger humidity exceedes predetermined threshold, the information of output prompting replacement operation mode.
In the present embodiment, finger print data can be the finger print data of fingerprint collecting device collection, with the shape of fingerprint image
Formula is presented.The finger humidity of user can be obtained by humidity sensor, can be in user's pressing fingerprint collecting device procedures
Obtain user's finger humidity.
The embodiment of the present invention obtains the humidity of finger by humidity sensor, so as to accurately determine user's unblock failure
Reason, so as to accurately point out user's replacement operation mode.
Here mode of operation can be understood as still using unlocked by fingerprint, but need replacement operation mode, for example：Carry
Show that user dries finger or the surface for cleaning fingerprint collecting equipment or changes unlocking manner, for example：It is replaced by password
Unblock or vein unblock etc..In addition, also other improper modes of operation may also cause fingerprint repeatedly to unlock failure,
For example：User's excessive forces are pressed or the pressing of too small power, therefore can also be that prompting decreases or increases press pressure here.
During being unlocked using finger print data, if user's finger compares moistening and user will be caused can not to solve for a long time
Lock successfully；For example：User just washes hand, in the case that finger is more moistened, and the quality of the fingerprint image of collection may extremely not
It is preferable；Replacement operation mode is pointed out in this case, it is possible to reduce the probability of failure is unlocked again, so that when shortening unblock
Between.
In embodiments of the present invention, humidity is higher can not necessarily cause unblock to fail, for example：Using preferable fingerprint
Image correction algorithm makes original finger print data be apparent from characteristic point substantially, therefore the embodiment of the present invention is additionally provided such as lower section
Case：Above-mentioned processor 1201, is additionally operable to determine the registered fingerprint that above-mentioned finger print data is targeted, using above-mentioned finger print data with it is upper
Registered fingerprint ratio is stated to be compared；If the unblock frequency of failure for above-mentioned registered fingerprint reaches pre-determined number, and above-mentioned user
Finger humidity exceedes predetermined threshold, or, the above-mentioned unlocked time for above-mentioned registered fingerprint more than scheduled time threshold value, and on
User's finger humidity is stated more than predetermined threshold；Then perform the information that replacement operation mode is pointed out in above-mentioned output.
Above-mentioned registered fingerprint is to be used to compare used fingerprint, is as a rule for the preset fingerprint number of unblock target
According to；Unblock target is the object that local unlocked by fingerprint needs to unlock, for example：Open screen, unblock application function and pay behaviour
Work etc. is any to be may relate to need the authenticated object by that could perform.
Above-mentioned finger print data may be referred to existing fingerprint comparison algorithm with the mode that above-mentioned registered fingerprint is compared, right
This embodiment of the present invention does not make uniqueness restriction.In order to which the success rate for improving unlocked by fingerprint can also be first excellent to finger print data progress
Change is handled, and the feature of above-mentioned finger print data is become apparent and clearly.It is more preferred that the embodiment of the present invention gives one of which
Implementation, in subsequent embodiment, it will provide detailed description.
In the present embodiment, scheduled time threshold value is to need to point out user's replacement operation mode to determine that unlocked time is longer
Trigger condition, the predetermined value can weigh with passage time value, can also be weighed by unlocking the frequency of failure, both sides
Formula is all without the realization for having influence on the embodiment of the present invention, therefore the embodiment of the present invention does not make uniqueness restriction to this.
In order to improve the success rate of unlocked by fingerprint, it is being compared using above-mentioned finger print data and above-mentioned registered fingerprint
Before, processing can also be first optimized to finger print data, the feature of above-mentioned finger print data is become apparent and clearly.Further
Ground, above-mentioned processor 1201 is additionally operable to before being compared using above-mentioned finger print data and above-mentioned registered fingerprint, determined above-mentioned
The pixel value of each pixel in the corresponding fingerprint image of finger print data；According to target pixel points pixel value, and with above-mentioned mesh
The pixel value of the adjacent pixel of pixel is marked, the grey decision-making of above-mentioned target pixel points is calculated；Above-mentioned target pixel points belong to
State the pixel in fingerprint image；After calculating obtains the grey decision-making of each pixel in above-mentioned fingerprint image, above-mentioned fingerprint is determined
The digit of the grey decision-making of image；The digit of the grey decision-making of above-mentioned fingerprint image is improved, above-mentioned fingerprint image is converted into target refers to
Print image；
It is above-mentioned using above-mentioned finger print data and above-mentioned registered fingerprint be compared including：
It is compared using above-mentioned target fingerprint image and above-mentioned registered fingerprint.
In the present embodiment, fingerprint image is the fingerprint image for target fingerprint image, can be that other set
The fingerprint image that fingerprint image or the local device collection that preparation is sent are obtained；Pixel point value, is used in fingerprint image
The parameter of each pixel in measurement fingerprint image, by taking capacitive fingerprint collecting equipment as an example, the pixel value can be electric capacity
Capacitance after value or weighting.Different fingerprint image acquisition technologies can be to that should have different pixel values, to this
Inventive embodiments do not make uniqueness restriction.
Grey decision-making be pixel it is most dark it is black to most it is bright it is white between brightness hierarchical relationship；In Windows
In, usually 256 rank, digit is 8, a value per single order in correspondence 0~255, referred to as grey decision-making.
Binary system is used in field of computer technology, it is assumed that digit is m, then there can be 2 m power GTGs by table
Show.For example：8 can represent 256 grey decision-makings.
The embodiment of the present invention, by the processing of the pixel value to fingerprint image, obtains the grey decision-making of each pixel value, and according to
This determines the digit of the grey decision-making of the fingerprint image, and obtaining target by improving the digit of grey decision-making of the fingerprint image refers to
Print image, can make target fingerprint image relative to fingerprint image closer to real fingerprint image, and make target fingerprint figure
The feature of picture is more prominent, so as to be conducive to improving the discrimination of fingerprint image, and is further conducive to unblock rate and certification
The raising of efficiency.
Target fingerprint image is obtained in the present embodiment, is the fingerprint optimized for initial finger print data
Data, therefore in previous embodiment, above-mentioned pixel value includes：
The capacitance of each pixel in above-mentioned fingerprint image, or capacitance weighted value.
It is understood that different fingerprint image acquisition technologies can be to that should have different pixel values, therefore with electric capacity
Value, or the pixel value exemplified by the weighted value of capacitance, should not be construed as the uniqueness restriction to the embodiment of the present invention.
Alternatively, the present embodiment additionally provides the circular of grey decision-making, specific as follows：Above-mentioned foundation object pixel
The pixel value of point, and the pixel adjacent with above-mentioned target pixel points pixel value, calculate the GTG of above-mentioned target pixel points
Value includes：
Determine central point pixel value in the default size contiguous range of above-mentioned target pixel points, max pixel value, minimum
The pixel total number of pixel value and above-mentioned default size contiguous range；
The grey decision-making for calculating above-mentioned target pixel points is：Above-mentioned pixel total number * (central point pixel values-minimum pixel
Value)/(max pixel value-minimum pixel value).
In above-mentioned target pixel points and the pixel adjacent with above-mentioned target pixel points, positioned at the pixel of central point
Pixel value be central point pixel value, the maximum corresponding pixel value of pixel of pixel value is max pixel value, and pixel value is minimum
The corresponding pixel value of pixel be minimum pixel value.Pixel can be taken into full account by the calculation of the embodiment of the present invention
With the difference between surrounding pixel point, so that it is determined that a relatively reasonable grey decision-making.
Alternatively, the pixel value of the above-mentioned pixel adjacent with above-mentioned target pixel points includes：
The n*n pixel put centered on above-mentioned target pixel points, above-mentioned n is the odd number more than 1.
In the present embodiment, n values are the odd number more than 1, and target pixel points can so be located at and participates in grey decision-making meter
The center of calculation, is conducive to the accurate grey decision-making for determining target pixel points；The common values of wherein n can be 3 or 5, also may be used
To be other values；Less n can improve computational efficiency, and larger n can make fingerprint image more balanced, both balances,
5 or 7 can be used as compared with the figure of merit.
Alternatively, the information of above-mentioned output prompting replacement operation mode includes：
Finger is dried in output prompting, or, output prompting increase press pressure, or output prompting reduce press pressure,
Or, output prompting is replaced by vein unblock, or, output prompting is replaced by password unblock, or, output prompting is replaced by figure
Shape is unlocked.
In the present embodiment, point out dry finger can be based on humidity sensor know user's finger moisten in the case of,
If it is determined that the fingerprint image that fingerprint collecting equipment is collected is a piece of black, peak valley difference is small and not moistening is caused, or
Peak valley difference is small and detects press pressure greatly, can point out to reduce press pressure；If the fingerprint image of fingerprint collecting equipment collection
As feature is few, the characteristic ratio of paddy is excessive in peak valley feature, or to detect press pressure too small, can point out to reduce pressing pressure
Power.Authentification failure caused by misoperation, it is also possible to have a lot, the citing of the embodiment of the present invention should not be construed as to of the invention real
The uniqueness for applying example is limited.
The embodiment of the present invention additionally provides another terminal device, as shown in figure 13, for convenience of description, illustrate only with
The related part of the embodiment of the present invention, particular technique details is not disclosed, refer to present invention method part.The terminal
Can be to include mobile phone, tablet personal computer, PDA (Personal Digital Assistant, personal digital assistant), POS
Any terminal device such as (Point of Sales, point-of-sale terminal), vehicle-mounted computer, so that terminal is mobile phone as an example：
Figure 13 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
13, mobile phone includes：Radio frequency (Radio Frequency, RF) circuit 1310, memory 1320, input block 1330, display unit
1340th, sensor 1350, voicefrequency circuit 1360, Wireless Fidelity (wireless fidelity, WiFi) module 1370, processor
The part such as 1380 and power supply 1390.It will be understood by those skilled in the art that the handset structure shown in Figure 13 is not constituted pair
The restriction of mobile phone, can include than illustrating more or less parts, either combine some parts or different part cloth
Put.
Each component parts of mobile phone is specifically introduced with reference to Figure 13：
RF circuits 1310 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 1380；In addition, being sent to base station by up data are designed.Generally, RF circuits
1310 include but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise
Amplifier, LNA), duplexer etc..In addition, RF circuits 1310 can also be logical by radio communication and network and other equipment
Letter.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 1320 can be used for storage software program and module, and processor 1380 is stored in memory by operation
1320 software program and module, so as to perform various function application and the data processing of mobile phone.Memory 1320 can be led
To include storing program area and storage data field, wherein, storing program area can be needed for storage program area, at least one function
Application program (such as sound-playing function, image player function etc.) etc.；Storage data field can store the use institute according to mobile phone
Data (such as voice data, phone directory etc.) of establishment etc..In addition, memory 1320 can include high random access storage
Device, can also include nonvolatile memory, and for example, at least one disk memory, flush memory device or other volatibility are solid
State memory device.
Input block 1330 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 1330 may include contact panel 1331 and other inputs
Equipment 1332.Contact panel 1331, also referred to as touch-screen, collect touch operation (such as user of the user on or near it
Use the behaviour of any suitable object such as finger, stylus or annex on contact panel 1331 or near contact panel 1331
Make), and corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 1331 may include touch detection
Two parts of device and touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 1380, and the order sent of reception processing device 1380 and can be performed.In addition,
Contact panel 1331 can be realized using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except touch surface
Plate 1331, input block 1330 can also include other input equipments 1332.Specifically, other input equipments 1332 can include
But it is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
It is one or more.
Display unit 1340 can be used for each of the information that is inputted by user of display or the information for being supplied to user and mobile phone
Plant menu.Display unit 1340 may include display panel 1341, optionally, can use liquid crystal display (Liquid
Crystal Display, LCD), the form such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
To configure display panel 1341.Further, contact panel 1331 can cover display panel 1341, when contact panel 1331 is detected
To after the touch operation on or near it, processor 1380 is sent to determine the type of touch event, with preprocessor
1380 provide corresponding visual output according to the type of touch event on display panel 1341.Although in fig. 13, touch surface
Plate 1331 and display panel 1341 are input and the input function that mobile phone is realized as two independent parts, but some
, can be by contact panel 1331 and the input that is integrated and realizing mobile phone of display panel 1341 and output function in embodiment.
Mobile phone may also include at least one sensor 1350, 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 1341, proximity transducer can close display panel when mobile phone is moved in one's ear
1341 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (generally three axles) and add
The size of speed, can detect that size and the direction of gravity when static, application (the such as horizontal/vertical screen available for identification mobile phone posture
Switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；As for mobile phone also
The other sensors such as configurable gyroscope, barometer, hygrometer, thermometer, infrared ray sensor, will not be repeated here.
Voicefrequency circuit 1360, loudspeaker 1361, microphone 1362 can provide the COBBAIF between user and mobile phone.Audio
Electric signal after the voice data received conversion can be transferred to loudspeaker 1361, is changed by loudspeaker 1361 by circuit 1360
Exported for voice signal；On the other hand, the voice signal of collection is converted to electric signal by microphone 1362, by voicefrequency circuit 1360
Voice data is converted to after reception, then after voice data output processor 1380 is handled, through RF circuits 1310 to be sent to ratio
Such as another mobile phone, or voice data is exported to memory 1320 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 1370
Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Figure 13 is shown
WiFi module 1370, 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 1380 is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone,
By operation or perform and be stored in software program and/or module in memory 1320, and call and be stored in memory 1320
Interior data, perform the various functions and processing data of mobile phone, so as to carry out integral monitoring to mobile phone.Optionally, processor
1380 may include one or more processing units；It is preferred that, processor 1380 can integrated application processor and modulation /demodulation processing
Device, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is mainly located
Manage radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1380.
Mobile phone also includes the power supply 1390 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply
Management system and processor 1380 are logically contiguous, so as to realize management charging, electric discharge and power consumption pipe by power-supply management system
The functions such as reason.
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 device.Wherein sensor
1350 or contact panel 1331 can be used as fingerprint collecting equipment.
It is worth noting that, in above-mentioned unblock control device embodiment, included unit is simply patrolled according to function
Collect what is divided, but be not limited to above-mentioned division, as long as corresponding function can be realized；In addition, each function list
The specific name of member is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
In addition, one of ordinary skill in the art will appreciate that realizing all or part of step in above-mentioned each method embodiment
It can be by program to instruct the hardware of correlation to complete, corresponding program can be stored in a kind of computer-readable recording medium
In, storage medium mentioned above can be read-only storage, disk or CD etc..
The present invention preferably embodiment is these are only, but protection scope of the present invention is not limited thereto, it is any
Those familiar with the art the change that can readily occur in or replaces in the technical scope that the embodiment of the present invention is disclosed
Change, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claim
Enclose and be defined.
Claims (9)
1. one kind solution lock control method, it is characterised in that including：
Obtain finger print data；
When obtaining finger print data, user's finger humidity is obtained；
Determine the pixel value of each pixel in the corresponding fingerprint image of the finger print data；According to the pixel value of target pixel points,
And the pixel value of the pixel adjacent with the target pixel points, calculate the grey decision-making of the target pixel points；The target
The pixel that pixel belongs in the fingerprint image；After calculating obtains the grey decision-making of each pixel in the fingerprint image,
Determine the digit of the grey decision-making of the fingerprint image；The digit of the grey decision-making of the fingerprint image is improved, by the fingerprint image
Be converted to target fingerprint image；
The targeted registered fingerprint of the finger print data is determined, is compared using the target fingerprint image and the registered fingerprint
It is right；
If the unblock frequency of failure for the registered fingerprint reaches pre-determined number, and the user's finger humidity exceedes predetermined threshold
Value, or, the unlocked time for the registered fingerprint exceedes scheduled time threshold value and the user's finger humidity exceedes
Predetermined threshold；Then the information of replacement operation mode is pointed out in output.
2. method according to claim 1, it is characterised in that the pixel value includes：
The capacitance of each pixel in the fingerprint image, or capacitance weighted value.
3. method according to claim 1, it is characterised in that the pixel value according to target pixel points, and with it is described
The pixel value of the adjacent pixel of target pixel points, calculating the grey decision-making of the target pixel points includes：
Determine central point pixel value, max pixel value, the minimum pixel in the default size contiguous range of the target pixel points
The pixel total number of value and the default size contiguous range；
The grey decision-making for calculating the target pixel points is：The pixel total number * (central point pixel value-minimum pixel value)/
(max pixel value-minimum pixel value).
4. according to claims 1 to 3 any one methods described, it is characterised in that the output prompting replacement operation mode
Information includes：
Output prompting dry finger, or, output prompting increase press pressure, either output prompting reduce press pressure or,
Output prompting is replaced by vein unblock, or, output prompting is replaced by password unblock, or, output prompting is replaced by figure solution
Lock.
5. one kind unblock control device, it is characterised in that including：
Fingerprint acquiring unit, for obtaining finger print data；
Humidity acquiring unit, for when the fingerprint acquiring unit obtains finger print data, obtaining user's finger humidity；
Pixel value acquiring unit, the pixel value for determining each pixel in the corresponding fingerprint image of the finger print data；
Grey decision-making computing unit, for the pixel value according to target pixel points, and the pixel adjacent with the target pixel points
The pixel value of point, calculates the grey decision-making of the target pixel points；The pixel that the target pixel points belong in the fingerprint image
Point；
Digit determining unit, for after calculating obtains the grey decision-making of each pixel in the fingerprint image, determining the fingerprint
The digit of the grey decision-making of image；
Image conversion unit, the digit of the grey decision-making for improving the fingerprint image, target is converted to by the fingerprint image
Fingerprint image；
Target determination unit, the registered fingerprint targeted for determining the finger print data；
Comparing unit, for being compared using the target fingerprint image and the registered fingerprint；
Output unit is pointed out, if pre-determined number is reached for the unblock frequency of failure, and the user's finger humidity exceedes in advance
Determine threshold value, or, the unlocked time exceedes scheduled time threshold value, and the user's finger humidity exceedes predetermined threshold, then defeated
Go out to point out the information of replacement operation mode.
6. equipment according to claim 5, it is characterised in that the pixel value includes：
The capacitance of each pixel in the fingerprint image, or capacitance weighted value.
7. equipment according to claim 5, it is characterised in that
The grey decision-making computing unit, the central point in default size contiguous range specifically for determining the target pixel points
Pixel value, max pixel value, the pixel total number of minimum pixel value and the default size contiguous range；
The grey decision-making for calculating the target pixel points is：The pixel total number * (central point pixel value-minimum pixel value)/
(max pixel value-minimum pixel value).
8. the equipment according to claim 5 to 7 any one, it is characterised in that
The prompting output unit, finger is dried specifically for output prompting, or, output prompting increase press pressure, or
Output prompting reduces press pressure, or, output prompting is replaced by vein unblock, or, output prompting is replaced by password unblock,
Or, output prompting is replaced by figure unblock.
9. a kind of terminal device, including：Processor and memory, it is characterised in that
The processor is used for perform claim and requires 1 to 4 any one methods described.
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| US10607055B2 (en) | 2017-02-06 | 2020-03-31 | Fingerprint Cards Ab | Method for authenticating a finger of a user of an electronic device |
| CN107423170B (en) * | 2017-03-17 | 2020-09-22 | Oppo广东移动通信有限公司 | Fingerprint unlocking time testing method and mobile terminal |
| CN107528970B (en) | 2017-07-31 | 2020-02-18 | Oppo广东移动通信有限公司 | User identification method, terminal and storage medium |
| CN107657210A (en) * | 2017-08-07 | 2018-02-02 | 吴露 | Composite fingerprint recognition methods, composite fingerprint identification module and electronic equipment |
| CN110390231B (en) * | 2018-04-20 | 2022-05-20 | 比亚迪半导体股份有限公司 | Fingerprint identification module abnormity determination method and device, storage medium and electronic equipment |
| CN110505345B (en) * | 2019-08-23 | 2022-01-21 | 中国联合网络通信集团有限公司 | Terminal unlocking mode switching management method, terminal and switching server |
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| US20130322705A1 (en) * | 2012-05-30 | 2013-12-05 | Google Inc. | Facial and fingerprint authentication |
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| CN103065134A (en) * | 2013-01-22 | 2013-04-24 | 江苏超创信息软件发展股份有限公司 | Fingerprint identification device and method with prompt information |
| CN104424415A (en) * | 2013-08-21 | 2015-03-18 | 陕西平杰科工贸有限公司 | Fingerprint unlocking server |
| CN104077576A (en) * | 2014-07-03 | 2014-10-01 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition method and terminal device having fingerprint recognition function |
| CN105335707A (en) * | 2015-10-19 | 2016-02-17 | 广东欧珀移动通信有限公司 | Method and apparatus for acquiring fingerprint image to be identified, and mobile terminal |
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