CN110287842A - Finger scan method and Related product - Google Patents
Finger scan method and Related product Download PDFInfo
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- CN110287842A CN110287842A CN201910523822.0A CN201910523822A CN110287842A CN 110287842 A CN110287842 A CN 110287842A CN 201910523822 A CN201910523822 A CN 201910523822A CN 110287842 A CN110287842 A CN 110287842A
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- Prior art keywords
- pressing
- fingerprint
- predeterminated frequency
- preset
- frequency
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
Abstract
The embodiment of the present application discloses a kind of finger scan method and Related product, wherein finger scan method is applied to electronic equipment, electronic equipment includes touch screen and fingerprint sensor, method includes: whether the preset fingerprint identification region in detection electronic equipment is in the open state, and wherein preset fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；If it is determined that preset fingerprint identification region is in the open state, then the pressing detection scan frequency of fingerprint sensor is improved from the first predeterminated frequency to the second predeterminated frequency, the finger scan frequency of fingerprint sensor is improved from third predeterminated frequency to the 4th predeterminated frequency.The embodiment of the present application improves pressing detection scan frequency and finger scan frequency when determining that preset fingerprint identification region is in the open state, improves the determining efficiency with finger scan of pressing, and then improve the efficiency for shielding lower unlocked by fingerprint.
Description
Technical field
This application involves fingerprint identification technology fields, and in particular to finger scan method and Related product.
Background technique
Fingerprint recognition refers to by comparing the details of different fingerprints and is identified.Fingerprint identification technology is related to figure
As numerous subjects such as processing, pattern-recognition, computer vision, mathematical morphology, wavelet analysis.Due to everyone fingerprint not
Together, be exactly same people ten refer between, fingerprint also has significant difference, therefore fingerprint can be used for identity authentication.
Traditional preposition or postposition capacitance type fingerprint is constantly in detection identification state, is but unable to satisfy screen comprehensively and requires；When
Fingerprint promotes its identification touching using touch screen (touch screen, TP) as the trigger source for shielding lower fingerprint under preceding optical panel
Hair speed can effectively optimize unlocked by fingerprint speed.But shield lower unlocked by fingerprint when scanning user fingerprints, scan frequency is low, so that referring to
The efficiency of line unlock is relatively low, is not able to satisfy the demand of user's quick release.
Summary of the invention
The embodiment of the present application provides a kind of finger scan method and Related product, to determine preset fingerprint cog region
When domain is in the open state, pressing detection scan frequency and finger scan frequency are improved, promotes pressing determination and finger scan
Efficiency, and then promote the efficiency for shielding lower unlocked by fingerprint.
In a first aspect, the embodiment of the present application provides a kind of finger scan method, it is applied to electronic equipment, the electronic equipment
Including touch screen and fingerprint sensor the described method includes:
Whether the preset fingerprint identification region detected in electronic equipment is in the open state, wherein the preset fingerprint identifies
Region is to be shown on touch screen for receiving the region of user fingerprints pressing；
If it is determined that the preset fingerprint identification region is in the open state, then the pressing detection of fingerprint sensor is scanned into frequency
Rate is improved from the first predeterminated frequency to the second predeterminated frequency, and the finger scan frequency of fingerprint sensor is mentioned from third predeterminated frequency
Up to the 4th predeterminated frequency.
Second aspect, the embodiment of the present application provide a kind of fingerprint scan device, and the fingerprint scan device includes:
Detection unit, wherein institute whether in the open state for detecting the preset fingerprint identification region in electronic equipment
Stating preset fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Adjustment unit, for if it is determined that the preset fingerprint identification region is in the open state, then by fingerprint sensor
Pressing detection scan frequency is improved from the first predeterminated frequency to the second predeterminated frequency, by the finger scan frequency of fingerprint sensor from
Third predeterminated frequency is improved to the 4th predeterminated frequency.
The third aspect, the embodiment of the present application provide a kind of electronic device, including processor, memory, communication interface, and
One or more programs, one or more of programs are stored in the memory, and are configured by the processor
It executes, described program is included the steps that for executing the instruction in first aspect either method.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, and storage is handed over for electronic data
The computer program changed, wherein the computer program makes computer execute step described in first aspect either method
Instruction.
5th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product
Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate
Machine executes the step some or all of as described in the embodiment of the present application first aspect either method.The computer program product
It can be a software installation packet.
It can be seen that finger scan method and apparatus provided by the embodiments of the present application, be applied to electronic equipment, electronic equipment
Including touch screen and fingerprint sensor.It, will when detecting that the preset fingerprint identification region in electronic equipment is in the open state
Pressing detection scan frequency is increased to the second predeterminated frequency from the first predeterminated frequency, by finger scan frequency from third predeterminated frequency
It improves to the 4th predeterminated frequency.Since preset fingerprint identification region is to be shown on touch screen for receiving what user fingerprints pressed
Region, then improving frequency when detecting that fingerprint identification region is in the open state, it is possible to reduce fingerprint identification region is in
Power consumption when closed state.Detection user can effectively be promoted and press behaviour by promoting pressing detection scan frequency and finger scan frequency
The efficiency of work and the efficiency of finger scan, and then effectively promote the lower unlocked by fingerprint efficiency of screen.
Detailed description of the invention
Attached drawing involved by the embodiment of the present application will be briefly described below.
Figure 1A is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application；
Figure 1B is a kind of finger scan method flow schematic diagram provided by the embodiments of the present application；
Fig. 2 is another finger scan method flow schematic diagram provided by the embodiments of the present application；
Fig. 3 is another finger scan method flow schematic diagram provided by the embodiments of the present application；
Fig. 4 is another finger scan method flow schematic diagram provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of electronic device provided by the embodiments of the present application；
Fig. 6 is a kind of functional unit composition block diagram of fingerprint scan device provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
It describes in detail below to the embodiment of the present application.
Figure 1A is please referred to, Figure 1A is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application.Wherein, electronics
Equipment 100 includes touch screen 101, fingerprint sensor 102 and fingerprint identification region 103, and wherein touch screen 101 is for issuing light
Line, and show fingerprint identification region 103, fingerprint identification region 103 notifies the pressing of user for receiving user fingerprints pressing
It is operated with lifting.Under screen in unlocked by fingerprint, touch screen actively shines, therefore can be Organic Light Emitting Diode (Organic
Light-Emitting Diode, OLED) screen.In addition electronic equipment 100 has Idle state and Active state, when being in
When Idle state, touch screen 101 is in low-power consumption mode, only detect screen on whether have pressing generate, if detected by
Pressure generates, then Idle state is exited, into Active state.When being in Active state, touch screen 101 is detected on screen
All signals, and do and whether report point, report point coordinate computation.Fingerprint sensor 102 is swept for carrying out pressing detection scanning and fingerprint
It retouches, the former determines whether there is pressing operation on screen, the latter is used in Active for obtaining pressing image in Idle state
Fingerprint image is obtained when state, carries out fingerprint recognition.Wherein, the fingerprint sensor 102 in the embodiment of the present application can be complementation
Metal-oxide semiconductor (MOS) (Complementary Metal-Oxide-Semiconductor, CMOS) sensor, electronic equipment
100 may include the various handheld devices with wireless communication function, mobile unit, wearable device, calculating equipment or connection
It is mobile to other processing equipments of radio modem and various forms of user equipmenies (User Equipment, UE)
Platform (Mobile Station, MS), terminal device (terminal device) etc..
Shield the whole process of lower fingerprint are as follows: user triggers the finger of electronic equipment because of mobile or contacting electronic equipments 100
Line identification function opens fingerprint identification module；Touch screen 101 shines, and shows fingerprint identification region 103；Electronic equipment 100
For Idle state, pressing detection scanning is carried out according to the first predeterminated frequency；After confirming the pressing operation of user, electronic equipment
100 are switched to Active state, according to third predeterminated frequency carry out finger scan, obtain user in fingerprint identification region 103
Fingerprint image.Last fingerprint identification module carries out fingerprint recognition according to the fingerprint image of acquisition.
In this process, due to after triggering fingerprint identification module touch screen will actively shine, cause energy consumption big.In addition
It can also include blank screen gesture function in electronic equipment 100, shield lower unlocked by fingerprint and use the mode shared with blank screen gesture, i.e., two
Kind function is opened simultaneously, and there is also the big problems of power consumption.Therefore in order to achieve the purpose that balance power consumption, shield lower unlocked by fingerprint and knowing
It is not optimal in other speed, i.e. the efficiency of pressing detection scanning and finger scan is all lower, causes fingerprint recognition efficiency
Lowly.
In order to optimize to the above problem, Figure 1B is please referred to, Figure 1B is that a kind of fingerprint provided by the embodiments of the present application is swept
Method flow schematic diagram is retouched, electronic equipment is applied to, electronic equipment includes touch screen and fingerprint sensor, as shown in Figure 1B, sheet
Finger scan method includes the following steps:
Whether the preset fingerprint identification region in step 111, detection electronic equipment is in the open state, wherein described default
Fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing.
Specifically, preset fingerprint identification region is shown on touch screen for receiving the region of user fingerprints pressing.?
During shielding lower unlocked by fingerprint, since the touch screen of electronic equipment is to shield comprehensively, the secondary or physical bond (example being obviously arranged is not had
Such as Home key) for receiving fingerprint pressing progress finger scan, but by the way that after triggering unlocked by fingerprint function, touch screen is sent out
Light, and in touch-control screen display preset fingerprint identification region, prompt user to carry out fingerprint pressing operation in the region.
Step 112, if it is determined that the preset fingerprint identification region is in the open state, then the pressing of fingerprint sensor is examined
Scan frequency is surveyed to improve from the first predeterminated frequency to the second predeterminated frequency, the finger scan frequency of fingerprint sensor is pre- from third
If frequency is improved to the 4th predeterminated frequency.
Specifically, when preset fingerprint identification region is in the open state, it is arranged in below preset fingerprint identification region
Fingerprint sensor starts to carry out pressing scanning according to certain pressing detection scan frequency, and determining in preset fingerprint identification region is
It is no to have pressing operation.It determines after having pressing operation, fingerprint sensor carries out finger scan according to certain finger scan frequency, obtains
Obtain fingerprint image.
It in this process, will be by order to promote the efficiency for whether having pressing operation in determining preset fingerprint identification region
Pressure detection scan frequency is increased to the second predeterminated frequency from the first predeterminated frequency, i.e. the second predeterminated frequency is greater than the first default frequency
Rate；In order to promoted obtain fingerprint image efficiency, finger scan frequency is increased to the 4th predeterminated frequency from third predeterminated frequency,
That is the 4th predeterminated frequency is greater than third predeterminated frequency.Wherein the first predeterminated frequency and third predeterminated frequency can be identical, are 30Hz,
40Hz etc., can also be different；Second predeterminated frequency and the 4th predeterminated frequency can be identical, can also not for 100Hz, 110Hz etc.
Together.
Optionally, pressing detection scan frequency is being improved from the first predeterminated frequency to the second predeterminated frequency, it is described
Method further include: pressing for the preset fingerprint identification region is pressed according to the finger of the second predeterminated frequency detected target object
Pressure surface product；Determine that the pressing area is more than the second preset area, wherein second preset area is less than the first preset area,
First preset area is to press the preset fingerprint according to the finger of the first predeterminated frequency detected target object to identify
The pressing area for being more than required for region.
Specifically, pressing detection scan frequency and finger scan frequency asynchronous can also be changed with synchronous change.Exist
When determining that preset fingerprint identification region is in the open state, only pressing detection scan frequency is improved from the first predeterminated frequency to
Two predeterminated frequencies, and mentioned when determining that preset fingerprint identification region has pressing operation, then by finger scan frequency from third frequency
It is raised to the 4th frequency.
Determine that preset fingerprint identification region has the detailed process of pressing operation are as follows: target pair is detected according to the second predeterminated frequency
The pressing area in the finger pressing preset fingerprint region of elephant can be with because the second predeterminated frequency is higher than the first predeterminated frequency
Pressing image is obtained more quickly.All positions effectively pressed constitute pressing area in pressing image, when pressing area is super
When crossing the second preset area, determine that there is pressing operation in preset fingerprint region.Wherein, the second preset area is less than the first default face
Product, and the first preset area is to press the preset fingerprint according to the finger of the first predeterminated frequency scan frequency detected target object
The pressing area for being more than required for identification region.Such as first preset area can be the 70% of default identification region, second is pre-
If area can be the 50% of default identification region.Because being with pressing strength when the finger of target object presses screen
It increases so that the area of contact preset fingerprint identification region is bigger, then when the pressing area in a certain frame image reaches second in advance
If when area, it is determined that there is pressing operation in preset fingerprint pressing area, and can further promote pressing operation in this way determines effect
Rate.
Optionally, described that the preset fingerprint identification is pressed according to the finger of the second predeterminated frequency detected target object
The pressing area in region, comprising: the pressing image of target object on touch screen is detected according to the second predeterminated frequency；It is pressed described in determination
The whole number of pixels that pressure image includes, the whole number of pixels indicate that pixel region is entirely included in the picture within the scope of pressing image
The number of element；The corresponding area of the whole number of pixels is obtained, the pressing area of the preset fingerprint identification region is determined as.
In the press surface for the finger pressing preset fingerprint identification region for detecting detected target object according to the second predeterminated frequency
When product, the pressing image of target object on touch screen is detected according to the second predeterminated frequency first, detection frequency is bigger, obtains pressing
The speed of image is faster.After obtaining one or more pressing image, the pressing area in pressing image is determined.Because finger is arc
Shape, the pressing area in pressing may can't be the figure of rule, and if there is dirt in finger pulp, may cause scanning
The fingerprint image arrived is imperfect, it is thus necessary to determine that the whole number of pixels of pressing image covering, if pressed for a pixel A
Pressure image covers only 70%, then pixel A is not included in pressing area, and 100% region of pixel B is all pressed image and covers
Lid, is included in pressing area for pixel B.Therefore, pressing area seeks formula are as follows: S0=s1* n, wherein S0Indicate press surface in total
Product, s1Indicate that the area of each pixel, n indicate the whole number of pixels that pressing image occupies.
As it can be seen that in the embodiment of the present application, pressing image is obtained by the second predeterminated frequency, the second predeterminated frequency is greater than the
One predeterminated frequency can promote the acquisition efficiency of pressing image, determine the whole number of pixels that pressing image includes, determine press surface
Product can promote the accuracy that pressing area determines, reduce the False Rate that pressing operation determines.After obtaining pressing area, into one
Step determines pressing area whether more than the second preset area, wherein the second preset area, which is less than, detects target with the first predeterminated frequency
The finger of object presses the first preset area for being more than required for the preset fingerprint identification region, and reduction pressing operation in this way needs
It determines the preset area for being more than, can further promote the determination efficiency of pressing operation.This method improves screen on the whole
The efficiency that pressing operation identifies in lower fingerprint recognition.
Optionally, the electronic equipment includes blank screen gesture function, the preset fingerprint cog region in detection electronic equipment
Before whether domain is in the open state, the method also includes: it determines that the blank screen gesture function of the electronic equipment is in and enables
State.
Blank screen gesture refers to electronic equipment in the case where blank screen is standby, and receiving is directly entered by preset gesture operation
To the process of application program.Blank screen gesture function can bring many conveniences, and the function and the lower unlocked by fingerprint function of screen for user
It can be sharing model.Shield lower unlocked by fingerprint and blank screen gesture function is opened simultaneously.The relationship of the two is as shown in table 1:
The 1 functional switch condition table of comparisons of table
| Switch | It triggers (opening) | It triggers (pass) | |
| Shield lower unlocked by fingerprint | Setting | Sensor receives signal | Long-time no signal |
| Blank screen gesture | Setting | Corresponding gesture | Close to body |
Only when shielding lower unlocked by fingerprint and blank screen gesture setting open state, it can be triggered according to various trigger conditions
Open or close two kinds of functions.Both functions can use sharing model, i.e., open both functions simultaneously, but respectively
Trigger condition it is not identical, mutually it is unaffected.Non-common mode can also be used, one of function can be individually opened
Energy.
When shielding lower unlocked by fingerprint and blank screen gesture is sharing model, while opening both functions and consuming energy very much, in order to
Balance power consumption, the scan frequency for shielding lower unlocked by fingerprint is arranged lower, for example, the first predeterminated frequency.But it can reduce refer in this way
The efficiency of line unlock.If shielding lower unlocked by fingerprint and blank screen gesture being non-common mode, and blank screen gesture function is in and closes shape
State, the scan frequency of unlocked by fingerprint is not influenced by blank screen gesture under the screen opened in this case, such as can be directly arranged
It is normal frequency, it may not be necessary to adjust for the second predeterminated frequency.In this context, in detection preset fingerprint identification region
Pressing detection scan frequency and finger scan frequency are improved when in the open state, one can be carried out and prejudge: determining electricity
The blank screen gesture function of sub- equipment is in initiate mode.If the blank screen gesture function of electronic equipment is in initiate mode, and examines
Measure that preset fingerprint identification region is in the open state, then at this time illustrate that the scan frequency of original fingerprint sensor is low,
It needs to be promoted.
As it can be seen that in the embodiment of the present application, by prejudging whether electronic equipment opens blank screen gesture function, and then really
Whether the sensor scan frequency (including pressing detection scan frequency and finger scan frequency) for determining electronic equipment needs to improve, can
With further promoted frequency adjustment specific aim and validity, reduce to do not need in the case of being adjusted carry out preset fingerprint knowledge
The energy consumption of other region detection.
Optionally, finger scan frequency is being improved from third predeterminated frequency to the 4th predeterminated frequency, the method
Further include: at least one fingerprint image of the target object is obtained according to the 4th predeterminated frequency；To at least one described fingerprint
Image carries out image quality evaluation, obtains at least one evaluation of estimate；It is maximum that evaluation of estimate is chosen from least one described evaluation of estimate
K evaluation of estimate, obtain K objective appraisal value；Obtain the corresponding K target fingerprint image conduct of the K objective appraisal value
Target fingerprint image obtains K target fingerprint image；Feature extraction is carried out to the K target fingerprint image, obtains at least one
A feature point set, wherein the corresponding feature point set of each target fingerprint image；It will be at least one described set of characteristic points
Each feature point set matched with the feature point set of preset fingerprint template, obtain at least one matching value；It is described extremely
When maximum value in a few matching value is greater than preset threshold, confirm that the fingerprint image is verified success.
Specifically, after promoting finger scan frequency, multiple fingerprint images of target object are obtained, because fingerprint image may
In the presence of made soaked with sweat because of unbalance stress, finger, unintelligible problem caused by the reasons such as spot, injury, it is therefore desirable to fingerprint image into
The screening of row quality.It completes to screen by image quality evaluation in the embodiment of the present application.Wherein, default evaluation of estimate can be silent for system
Recognizing perhaps user's self-setting preset threshold can be system default or user's self-setting, be not limited thereto；Electronic equipment
Image quality evaluation can be carried out at least one fingerprint image, in the specific implementation, image quality evaluation index can be used at least
Each of one fingerprint image fingerprint image carries out image quality evaluation, obtains at least one image quality evaluation values, schemes
It, can as quality evaluation index may include following at least one: average gray, mean square deviation, entropy, edge conservation degree, signal-to-noise ratio etc.
It is bigger to be defined as image quality evaluation values, then picture quality is better.
Further, preset fingerprint template can be set by the user himself or system default, can be electronic equipment acquisition
The finger print image of the different zones of the different fingers of user can choose evaluation of estimate maximum from least one above-mentioned evaluation of estimate
K evaluation of estimate, obtain K objective appraisal value.Wherein, the determination of K value can be the fixed percentage of total evaluation of estimate, such as
At least one evaluation of estimate is M evaluation of estimate, fixed percentage P, then K=M*P；Or K value is by least one evaluation of estimate
Number greater than default Evaluation threshold determines.Fingerprint image corresponding to the K objective appraisal value is obtained, as target fingerprint figure
Picture in this way, the target fingerprint image of at least one high quality can be obtained, and carries out at least one above-mentioned target fingerprint image special
Sign is extracted, and this feature may include finger surface ridge and paddy information etc., is not limited thereto, in this way, at least one spy can be obtained
Levy point set, wherein the corresponding set of characteristic points of each target fingerprint image, it will be at least one above-mentioned set of characteristic points
Each feature point set is matched with the feature point set of preset fingerprint template, obtains at least one matching value, finally, at least
When maximum value in one matching value is greater than preset threshold, then it can confirm that fingerprint image is verified success, in this way, just completing finger
The verifying of print image.
Wherein, the method for feature extraction may include following at least one: accelerate robust feature (Speeded Up Robust
Feature, SURF), scale invariant feature conversion (Scale Invariant Feature Transform, SIFT), accelerate point
It cuts test and obtains feature (Features from Accelerated Segment Test, FAST), Harris cornerpoints method etc.,
It is not limited thereto.
As it can be seen that in the embodiment of the present application, detecting that the preset fingerprint identification region in electronic equipment is in opening state
When state, pressing detection scan frequency is increased to the second predeterminated frequency from the first predeterminated frequency, by finger scan frequency from third
Predeterminated frequency is improved to the 4th predeterminated frequency.Since preset fingerprint identification region is to be shown on touch screen to refer to for receiving user
The region of line pressing, then improving frequency when detecting that fingerprint identification region is in the open state, it is possible to reduce fingerprint recognition
Power consumption when region is in close state.Detection can effectively be promoted and use by promoting pressing detection scan frequency and finger scan frequency
The efficiency of family pressing operation and the efficiency of finger scan, and then effectively promote the lower unlocked by fingerprint efficiency of screen.
Referring to Fig. 2, Fig. 2 is another finger scan method flow schematic diagram provided by the embodiments of the present application, such as Fig. 2 institute
Show, the finger scan method includes the following steps:
Whether the preset fingerprint identification region in step 201, detection electronic equipment is in the open state, wherein described default
Fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Step 202, if it is determined that the preset fingerprint identification region is in the open state, then by pressing detection scan frequency from
First predeterminated frequency is improved to the second predeterminated frequency；
Step 203, the pressing image that target object on touch screen is detected according to the second predeterminated frequency；
Step 204 determines that the whole number of pixels that the pressing image includes, the whole number of pixels indicate that pixel region is complete
Portion includes the number of the pixel within the scope of pressing image；
Step 205 obtains the corresponding area of the whole number of pixels, is determined as the pressing of the preset fingerprint identification region
Area；
Step 206 determines that the pressing area is more than the second preset area, wherein second preset area is less than first
Preset area, first preset area are described default according to the pressing of the finger of the first predeterminated frequency detected target object
The pressing area for being more than required for fingerprint identification region；
Step 207 improves finger scan frequency to the 4th predeterminated frequency from third predeterminated frequency.
Wherein, the specific descriptions of above-mentioned steps 201- step 207 are referred to fingerprint described in step 111- step 112
The corresponding description of scan method, details are not described herein.
In the embodiment of the present application, pressing image is obtained by the second predeterminated frequency, it is pre- that the second predeterminated frequency is greater than first
If frequency, the acquisition efficiency of pressing image can be promoted, determines the whole number of pixels that pressing image includes, determines pressing area,
The accuracy that pressing area determines can be promoted, the False Rate that pressing operation determines is reduced.After obtaining pressing area, further really
Surely whether pressing area is more than the second preset area, wherein the second preset area is less than with the first predeterminated frequency detected target object
Finger press the first preset area for being more than required for the preset fingerprint identification region, reduction pressing operation needs true in this way
Surely the preset area for being more than can further promote the determination efficiency of pressing operation.This method improves screen on the whole and refers to down
The efficiency of pressing operation identification in line identification.
Referring to Fig. 3, Fig. 3 is another finger scan method flow schematic diagram provided by the embodiments of the present application, such as Fig. 3 institute
Show, the finger scan method includes the following steps:
Step 301 determines that the blank screen gesture function of the electronic equipment is in initiate mode；
Whether the preset fingerprint identification region in step 302, detection electronic equipment is in the open state, wherein described default
Fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Step 303, if it is determined that the preset fingerprint identification region is in the open state, then the pressing of fingerprint sensor is examined
Scan frequency is surveyed to improve from the first predeterminated frequency to the second predeterminated frequency, the finger scan frequency of fingerprint sensor is pre- from third
If frequency is improved to the 4th predeterminated frequency.
Wherein, the specific descriptions of above-mentioned steps 301- step 303 are referred to fingerprint described in step 111- step 112
The corresponding description of scan method, details are not described herein.
In the embodiment of the present application, by prejudging whether electronic equipment opens blank screen gesture function, and then electricity is determined
Whether the sensor scan frequency (including pressing detection scan frequency and finger scan frequency) of sub- equipment needs to improve, Ke Yijin
One step promoted frequency adjustment specific aim and validity, reduce to do not need in the case of being adjusted carry out preset fingerprint cog region
The energy consumption of domain detection.
Referring to Fig. 4, Fig. 4 is another finger scan method flow schematic diagram provided by the embodiments of the present application, such as Fig. 4 institute
Show, the finger scan method includes the following steps:
Whether the preset fingerprint identification region in step 401, detection electronic equipment is in the open state, wherein described default
Fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Step 402, if it is determined that the preset fingerprint identification region is in the open state, then by pressing detection scan frequency from
First predeterminated frequency is improved to the second predeterminated frequency, and finger scan frequency is improved from third predeterminated frequency to the 4th default frequency
Rate；
Step 403, at least one fingerprint image that the target object is obtained according to the 4th predeterminated frequency；
Step 404 carries out image quality evaluation at least one described fingerprint image, obtains at least one evaluation of estimate；
Step 405 chooses the maximum K evaluation of estimate of evaluation of estimate from least one described evaluation of estimate, obtains K target and comments
Value；
Step 406 obtains the corresponding K target fingerprint image of the K objective appraisal value as target fingerprint image, obtains
To K target fingerprint image；
Step 407 carries out feature extraction to the K target fingerprint image, obtains at least one feature point set, wherein
Each target fingerprint image corresponds to a feature point set；
Step 408, by the spy of each of at least one set of characteristic points feature point set and preset fingerprint template
Sign point set is matched, at least one matching value is obtained；
When step 409, the maximum value at least one described matching value are greater than preset threshold, the fingerprint image is confirmed
It is verified success.
Wherein, the specific descriptions of above-mentioned steps 401- step 409 are referred to fingerprint described in step 111- step 112
The corresponding description of scan method, details are not described herein.
In the embodiment of the present application, the resolution ratio of display content is promoted using double three interpolation methods, and in multiple display layers
The display image that successively display resolution is incremented by from top to bottom, can effectively increase the clear of the content information shown in this way
Degree.
As it is above-mentioned consistently, referring to Fig. 5, Fig. 5 is a kind of structural representation of electronic device provided by the embodiments of the present application
Figure, as shown in figure 5, the electronic device include processor 501, memory 502, communication interface 503, multiple display layers 504 and
One or more programs 505, wherein said one or multiple programs are stored in above-mentioned memory 502, and be configured by
Above-mentioned processor executes, and above procedure includes the instruction for executing following steps:
Whether the preset fingerprint identification region detected in electronic equipment is in the open state, wherein the preset fingerprint identifies
Region is to be shown on touch screen for receiving the region of user fingerprints pressing；
If it is determined that the preset fingerprint identification region is in the open state, then the pressing detection of fingerprint sensor is scanned into frequency
Rate is improved from the first predeterminated frequency to the second predeterminated frequency, and the finger scan frequency of fingerprint sensor is mentioned from third predeterminated frequency
Up to the 4th predeterminated frequency.
As can be seen that electronic device is detecting the preset fingerprint identification region in electronic equipment in the embodiment of the present application
When in the open state, pressing detection scan frequency is increased to the second predeterminated frequency from the first predeterminated frequency, by finger scan
Frequency is improved from third predeterminated frequency to the 4th predeterminated frequency.Since preset fingerprint identification region is to be shown on touch screen to be used for
The region for receiving user fingerprints pressing can subtract then improving frequency when detecting that fingerprint identification region is in the open state
Power consumption when few fingerprint identification region is in close state.It promotes pressing detection scan frequency and finger scan frequency can be effective
The efficiency of detection user's pressing operation and the efficiency of finger scan are promoted, and then effectively promotes the lower unlocked by fingerprint efficiency of screen.
In a possible example, pressing detection scan frequency is being improved from the first predeterminated frequency to the second default frequency
After rate, above procedure further includes the instruction for executing following steps:
The pressing of the preset fingerprint identification region is pressed according to the finger of the second predeterminated frequency detected target object
Area；
Determine that the pressing area is more than the second preset area, wherein second preset area is less than the first default face
Product, first preset area are to press the preset fingerprint according to the finger of the first predeterminated frequency detected target object to know
The pressing area for being more than required for other region.
In a possible example, the electronic equipment includes blank screen gesture function, pre- in detection electronic equipment
If before whether fingerprint identification region is in the open state, above procedure further includes the instruction for executing following steps:
Determine that the blank screen gesture function of the electronic equipment is in initiate mode.
In a possible example, institute is pressed according to the finger of the second predeterminated frequency detected target object described
In terms of the pressing area for stating preset fingerprint identification region, the instruction in described program is specifically used for executing following operation:
The pressing image of target object on touch screen is detected according to the second predeterminated frequency；
Determine that the whole number of pixels that the pressing image includes, the whole number of pixels indicate that pixel region is entirely included in
The number of pixel within the scope of pressing image；
The corresponding area of the whole number of pixels is obtained, the pressing area of the preset fingerprint identification region is determined as.
In a possible example, by finger scan frequency from third predeterminated frequency improve to the 4th predeterminated frequency it
Afterwards, above procedure further includes the instruction for executing following steps:
At least one fingerprint image of the target object is obtained according to the 4th predeterminated frequency；
Image quality evaluation is carried out at least one described fingerprint image, obtains at least one evaluation of estimate；
The maximum K evaluation of estimate of evaluation of estimate is chosen from least one described evaluation of estimate, obtains K objective appraisal value；
The corresponding K target fingerprint image of the K objective appraisal value is obtained as target fingerprint image, obtains K mesh
Mark fingerprint image；
Feature extraction is carried out to the K target fingerprint image, obtains at least one feature point set, wherein each mesh
Mark the corresponding feature point set of fingerprint image；
By the feature point set of each of at least one set of characteristic points feature point set and preset fingerprint template into
Row matching, obtains at least one matching value；
When maximum value at least one described matching value is greater than preset threshold, confirm that the fingerprint image is verified into
Function.
It is above-mentioned that mainly the scheme of the embodiment of the present application is described from the angle of method side implementation procedure.It is understood that
, in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or software mould for electronic device
Block.Those skilled in the art should be readily appreciated that, in conjunction with each exemplary unit of embodiment description presented herein
And algorithm steps, the application can be realized with the combining form of hardware or hardware and computer software.Some function actually with
Hardware or computer software drive the mode of hardware to execute, the specific application and design constraint item depending on technical solution
Part.Professional technician can specifically realize described function to each using distinct methods, but this reality
Now it is not considered that exceeding scope of the present application.
The embodiment of the present application can carry out the division of functional unit according to above method example to electronic device, for example, can
With each functional unit of each function division of correspondence, two or more functions can also be integrated in a processing unit
In.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs
It is noted that be schematical, only a kind of logical function partition to the division of unit in the embodiment of the present application, it is practical real
It is current that there may be another division manner.
Fig. 6 is the functional unit composition block diagram of fingerprint scan device 600 involved in the embodiment of the present application.The fingerprint is swept
Imaging apparatus 600 is applied to electronic equipment, which includes:
Detection unit 601, it is whether in the open state for detecting the preset fingerprint identification region in electronic equipment, wherein
The preset fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Adjustment unit 602, for if it is determined that the preset fingerprint identification region is in the open state, then by fingerprint sensor
Pressing detection scan frequency improve from the first predeterminated frequency to the second predeterminated frequency, by the finger scan frequency of fingerprint sensor
It improves from third predeterminated frequency to the 4th predeterminated frequency.
As can be seen that fingerprint scan device is applied to electronic equipment, and electronic equipment includes touch screen in the embodiment of the present application
And fingerprint sensor.Fingerprint scan device when detecting that the preset fingerprint identification region in electronic equipment is in the open state,
Pressing detection scan frequency is increased to the second predeterminated frequency from the first predeterminated frequency, finger scan frequency is default frequently from third
Rate is improved to the 4th predeterminated frequency.Since preset fingerprint identification region is to be shown on touch screen for receiving user fingerprints pressing
Region, then improving frequency when detecting that fingerprint identification region is in the open state, it is possible to reduce at fingerprint identification region
Power consumption when closed state.Detection user's pressing can effectively be promoted by promoting pressing detection scan frequency and finger scan frequency
The efficiency of operation and the efficiency of finger scan, and then effectively promote the lower unlocked by fingerprint efficiency of screen.
In a possible example, the fingerprint scan device further includes determination unit 603, is scanned by pressing detection
Frequency is improved from the first predeterminated frequency to the second predeterminated frequency, and the determination unit 603 is used for:
The pressing of the preset fingerprint identification region is pressed according to the finger of the second predeterminated frequency detected target object
Area；
Determine that the pressing area is more than the second preset area, wherein second preset area is less than the first default face
Product, first preset area are to press the preset fingerprint according to the finger of the first predeterminated frequency detected target object to know
The pressing area for being more than required for other region.
In a possible example, the electronic equipment includes blank screen gesture function, pre- in detection electronic equipment
If before whether fingerprint identification region is in the open state, the detection unit is also used to:
Determine that the blank screen gesture function of the electronic equipment is in initiate mode.
It is described pre- being pressed according to the finger of the second predeterminated frequency detected target object in a possible example
If the determination unit 603 is specifically used in terms of the pressing area of fingerprint identification region:
The pressing image of target object on touch screen is detected according to the second predeterminated frequency；
Determine that the whole number of pixels that the pressing image includes, the whole number of pixels indicate that pixel region is entirely included in
The number of pixel within the scope of pressing image；
The corresponding area of the whole number of pixels is obtained, the pressing area of the preset fingerprint identification region is determined as.
In a possible example, by finger scan frequency from third predeterminated frequency improve to the 4th predeterminated frequency it
Afterwards, the adjustment unit 602 is also used to:
At least one fingerprint image of the target object is obtained according to the 4th predeterminated frequency；
Image quality evaluation is carried out at least one described fingerprint image, obtains at least one evaluation of estimate；
The maximum K evaluation of estimate of evaluation of estimate is chosen from least one described evaluation of estimate, obtains K objective appraisal value；
The corresponding K target fingerprint image of the K objective appraisal value is obtained as target fingerprint image, obtains K mesh
Mark fingerprint image；
Feature extraction is carried out to the K target fingerprint image, obtains at least one feature point set, wherein each mesh
Mark the corresponding feature point set of fingerprint image；
By the feature point set of each of at least one set of characteristic points feature point set and preset fingerprint template into
Row matching, obtains at least one matching value；
When maximum value at least one described matching value is greater than preset threshold, confirm that the fingerprint image is verified into
Function.
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity
The computer program of subdata exchange, the computer program make computer execute any as recorded in above method embodiment
Some or all of method step, above-mentioned computer include mobile terminal.
The embodiment of the present application also provides a kind of computer program product, and above-mentioned computer program product includes storing calculating
The non-transient computer readable storage medium of machine program, above-mentioned computer program are operable to that computer is made to execute such as above-mentioned side
Some or all of either record method step in method embodiment.The computer program product can be a software installation
Packet, above-mentioned computer includes mobile terminal.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the application is not limited by the described action sequence because
According to the application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily the application
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of said units, it is only a kind of
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit,
It can be electrical or other forms.
Above-mentioned unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product,
It can store in a computer-readable access to memory.Based on this understanding, the technical solution of the application substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a memory, including some instructions are used so that a computer equipment (can
For personal computer, server or network equipment etc.) execute all or part of step of each embodiment above method of the application
Suddenly.And memory above-mentioned includes: USB flash disk, read-only memory (Read-Only Memory, ROM), random access memory
The various media that can store program code such as (Random Access Memory, RAM), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory
It may include: flash disk, ROM, RAM, disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application
There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of finger scan method, which is characterized in that be applied to electronic equipment, the electronic equipment includes touch screen and fingerprint
Sensor, which comprises
Whether the preset fingerprint identification region detected in electronic equipment is in the open state, wherein the preset fingerprint identification region
To be shown on touch screen for receiving the region of user fingerprints pressing；
If it is determined that the preset fingerprint identification region is in the open state, then by the pressing detection scan frequency of fingerprint sensor from
First predeterminated frequency is improved to the second predeterminated frequency, by the finger scan frequency of fingerprint sensor from third predeterminated frequency improve to
4th predeterminated frequency.
2. the method according to claim 1, wherein pressing detection scan frequency is mentioned from the first predeterminated frequency
After up to the second predeterminated frequency, the method also includes:
The pressing area of the preset fingerprint identification region is pressed according to the finger of the second predeterminated frequency detected target object；
Determine that the pressing area is more than the second preset area, wherein second preset area is less than the first preset area, institute
Stating the first preset area is to press the preset fingerprint cog region according to the finger of the first predeterminated frequency detected target object
The pressing area for being more than required for domain.
3. method according to claim 1 or 2, which is characterized in that the electronic equipment includes blank screen gesture function, is being examined
Survey electronic equipment in preset fingerprint identification region it is whether in the open state before, the method also includes:
Determine that the blank screen gesture function of the electronic equipment is in initiate mode.
4. according to the method described in claim 3, it is characterized in that, described according to the second predeterminated frequency detected target object
Finger press the pressing area of the preset fingerprint identification region, comprising:
The pressing image of target object on touch screen is detected according to the second predeterminated frequency；
Determine that the whole number of pixels that the pressing image includes, the whole number of pixels indicate that pixel region is entirely included in pressing
The number of pixel in image range；
The corresponding area of the whole number of pixels is obtained, the pressing area of the preset fingerprint identification region is determined as.
5. according to the method described in claim 4, it is characterized in that, by finger scan frequency from third predeterminated frequency improve to
After 4th predeterminated frequency, the method also includes:
At least one fingerprint image of the target object is obtained according to the 4th predeterminated frequency；
Image quality evaluation is carried out at least one described fingerprint image, obtains at least one evaluation of estimate；
The maximum K evaluation of estimate of evaluation of estimate is chosen from least one described evaluation of estimate, obtains K objective appraisal value；
The corresponding K target fingerprint image of the K objective appraisal value is obtained as target fingerprint image, K target is obtained and refers to
Print image；
Feature extraction is carried out to the K target fingerprint image, obtains at least one feature point set, wherein each target refers to
Print image corresponds to a feature point set；
By each of at least one set of characteristic points feature point set and the progress of the feature point set of preset fingerprint template
Match, obtains at least one matching value；
When maximum value at least one described matching value is greater than preset threshold, confirm that the fingerprint image is verified success.
6. a kind of fingerprint scan device, which is characterized in that the fingerprint scan device includes:
Detection unit, it is whether in the open state for detecting the preset fingerprint identification region in electronic equipment, wherein described pre-
If fingerprint identification region is to be shown on touch screen for receiving the region of user fingerprints pressing；
Adjustment unit, for if it is determined that the preset fingerprint identification region is in the open state, then by the pressing of fingerprint sensor
Detection scan frequency is improved from the first predeterminated frequency to the second predeterminated frequency, by the finger scan frequency of fingerprint sensor from third
Predeterminated frequency is improved to the 4th predeterminated frequency.
7. device according to claim 6, which is characterized in that the fingerprint scan device further includes determination unit, is being incited somebody to action
Pressing detection scan frequency is improved from the first predeterminated frequency to the second predeterminated frequency, and the determination unit is used for:
The pressing area of the preset fingerprint identification region is pressed according to the finger of the second predeterminated frequency detected target object；
Determine that the pressing area is more than the second preset area, wherein second preset area is less than the first preset area, institute
Stating the first preset area is to press the preset fingerprint cog region according to the finger of the first predeterminated frequency detected target object
The pressing area for being more than required for domain.
8. device according to claim 6 or 7, which is characterized in that the electronic equipment includes blank screen gesture function, is being examined
Survey electronic equipment in preset fingerprint identification region it is whether in the open state before, the detection unit is also used to:
Determine that the blank screen gesture function of the electronic equipment is in initiate mode.
9. a kind of electronic device, which is characterized in that including processor, memory, communication interface, and one or more programs,
One or more of programs are stored in the memory, and are configured to be executed by the processor, described program packet
Include the instruction for executing the step in the method according to claim 1 to 5.
10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange,
In, the computer program makes computer execute the method according to claim 1 to 5.
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