CN107527048A - Fingerprint identification method, device, storage medium and mobile terminal - Google Patents
Fingerprint identification method, device, storage medium and mobile terminal Download PDFInfo
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- CN107527048A CN107527048A CN201710909121.1A CN201710909121A CN107527048A CN 107527048 A CN107527048 A CN 107527048A CN 201710909121 A CN201710909121 A CN 201710909121A CN 107527048 A CN107527048 A CN 107527048A
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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
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
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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
- G06V40/1347—Preprocessing; Feature extraction
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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 present application discloses a kind of fingerprint identification method, device, storage medium and mobile terminal.This method includes：After fingerprint image, which obtains event, to be triggered, the ambient brightness that mobile terminal is presently in environment is obtained；Determined to obtain the number of fingerprint image according to the ambient brightness；When the number for obtaining fingerprint image is one time, it is determined that the fingerprint image got is fingerprint image to be identified；When the number for obtaining fingerprint image is at least twice, fingerprint image to be identified is determined according to the fingerprint image got at least twice；Database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.Technical scheme provided herein, it is possible to achieve improve the accuracy in mobile terminal progress fingerprint identification process, the effect influenceed caused by reducing other factors.
Description
Technical field
The invention relates to computer realm, more particularly to a kind of fingerprint identification method, device, storage medium and shifting
Dynamic terminal.
Background technology
Set fingerprint identification module very common on mobile terminal at present.Fingerprint recognition can be not only used for unlocking, wake up
Etc. an important ring for function, and mobile payment.
In correlation technique, in fingerprint recognition, fingerprint image is typically gathered, then by the fingerprint image of collection with having stored
Fingerprint image be compared, be identified result.Influence is easily received in fingerprint image acquisition process in the prior art, so as to
Fingerprint recognition effect is influenceed, existing defects are, it is necessary to improve.
The content of the invention
The embodiment of the present application provides a kind of fingerprint identification method, device, storage medium and mobile terminal, can optimize movement
The mode of the fingerprint recognition of terminal.
Second aspect, the embodiment of the present application provide a kind of fingerprint identification method, and this method includes：
After fingerprint image, which obtains event, to be triggered, the ambient brightness that mobile terminal is presently in environment is obtained；
Determined to obtain the number of fingerprint image according to the ambient brightness；
When the number for obtaining fingerprint image is one time, it is determined that the fingerprint image got is fingerprint image to be identified；When
When the number for obtaining fingerprint image is at least twice, fingerprint image to be identified is determined according to the fingerprint image got at least twice
Picture；
Database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
Second aspect, the embodiment of the present application provide a kind of fingerprint identification device, and the device includes：
Ambient brightness acquisition module, for after fingerprint image obtains event and is triggered, obtaining mobile terminal and being presently in
The ambient brightness of environment；
Fingerprint image times of acquisition determining module, for being determined to obtain the number of fingerprint image according to the ambient brightness；
Fingerprint image determining module to be identified, for when the number for obtaining fingerprint image is one time, it is determined that getting
Fingerprint image is fingerprint image to be identified；When the number for obtaining fingerprint image at least twice when, according to getting at least twice
Fingerprint image determine fingerprint image to be identified；
Fingerprint identification module, for carrying out database fingerprint matching to the fingerprint image to be identified, according to matching result
Carry out fingerprint recognition.
The third aspect, the embodiment of the present application provide a kind of computer-readable recording medium, are stored thereon with computer journey
Sequence, the fingerprint identification method as described in the embodiment of the present application is realized when the program is executed by processor.
Fourth aspect, the embodiment of the present application provide a kind of mobile terminal, including memory, processor and are stored in storage
On device and it can be realized in the computer program of processor operation described in the computing device during computer program as the application is real
Apply the fingerprint identification method described in example.
The technical scheme that the embodiment of the present application is provided, by after fingerprint image acquisition event is triggered, obtaining movement
Terminal is presently in the ambient brightness of environment；Determined to obtain the number of fingerprint image according to the ambient brightness；And according to acquisition
Number determines fingerprint image to be identified, and then carries out fingerprint recognition.By using technical scheme provided herein, Ke Yishi
Now improve the accuracy in mobile terminal progress fingerprint identification process, the effect influenceed caused by reducing other factors.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet for fingerprint identification method that the embodiment of the present application provides；
Fig. 2 is the schematic flow sheet for another fingerprint identification method that the embodiment of the present application provides；
Fig. 3 is a kind of structured flowchart of the device for fingerprint recognition that the embodiment of the present application provides；
Fig. 4 is a kind of structural representation for mobile terminal that the embodiment of the present application provides.
Embodiment
The technical scheme of the application is further illustrated below in conjunction with the accompanying drawings and by embodiment.It is appreciated that
It is that specific embodiment described herein is used only for explaining the application, rather than the restriction to the application.Further need exist for illustrating
, for the ease of description, the part related to the application rather than entire infrastructure are illustrate only in accompanying drawing.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although each step is described as the processing of order, many of which by flow chart
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the order of each step can be rearranged.When its operation
The processing can be terminated during completion, it is also possible to the additional step being not included in accompanying drawing.The processing can be with
Corresponding to method, function, code, subroutine, subprogram etc..
Fig. 1 is a kind of schematic flow sheet for fingerprint identification method that the embodiment of the present application provides, suitable for fingerprint recognition
Situation, this method can be performed by fingerprint identification device, and wherein the device can be realized by software and/or hardware, can typically integrate
In the terminal.As shown in figure 1, this method includes：
S101, after fingerprint image obtains event and is triggered, obtain mobile terminal and be presently in the ambient brightness of environment.
Wherein, fingerprint image obtains event, can be the user account of the unblock of mobile terminal, payment and application program
The operations or fingerprint typing, registration etc. such as login.It can cease to shield in mobile terminal that fingerprint image, which obtains event and is triggered,
After when being waken up or when detecting that fingerprint module is under pressure, and when detecting that current mobile terminal is in solution
Lock, pay, log in and during the interface such as fingerprint typing, registration.Specifically, can be by detecting the process or line of mobile terminal
Journey, and read according to the broadcast message of mobile terminal the state of current mobile terminal and determine.
Ambient brightness can be the illuminance of mobile terminal present position, wherein, illuminance is usually said Lux
Spend (lux), represent the luminous flux being subject on shot subject surface unit area.1 Lux equivalent to 1 lumen/square metre, i.e. quilt
Take the photograph on the area of every square metre of main body, by one meter of distance, the light source that luminous intensity is 1 candle light, the luminous flux of vertical irradiation.Illumination
Degree is an important indicator for weighing shooting environmental.
The ambient brightness of current mobile terminal present position can be obtained by luminance sensor, obtain ambient brightness when
Machine can obtain after event is triggered to be obtained in fingerprint image, can so ensure the information of ambient brightness got
Benefiting from property, avoid the mode of timing acquiring from obtaining ambient brightness because so setting can waste compared with multiple-energy-source, influence it is mobile eventually
The endurance at end.
S102, the number according to ambient brightness determination acquisition fingerprint image.
Wherein, obtaining fingerprint image can be obtained by optical fingerprint sensor module, and optical fingerprint sensor module can
To be made up of backlight, optical fingerprint sensor and protective layer.
In the embodiment of the present application, optionally, the light source of the optical fingerprint sensor includes the organic of OLED display
Luminescent layer.The benefit so set is directly optical fingerprint sensor to be arranged on inside OLED display, you can with reality
It is unlocked on present screen by fingerprint, without being separately provided, improves the service efficiency on mobile terminal surface.
Determined to obtain the number of fingerprint image according to ambient brightness, can be the number and ambient brightness for obtaining fingerprint image
In the presence of setting relation, when being more than 6000lux such as ambient brightness, it is believed that current environment brightness is larger, can obtain multiple fingerprint image
Picture.Further, a fingerprint to be identified in current multiple fingerprint images can be determined according to the effect of multiple fingerprint images
Image, multiple fingerprint images can also be carried out with certain algorithm computing, a fingerprint image to be identified is obtained after processing, enters one
Step carries out fingerprint recognition to fingerprint image to be identified.
In the embodiment of the present application, optionally, determined to obtain the number of fingerprint image according to the ambient brightness, including：
When the ambient brightness is less than the first given threshold, a fingerprint image is obtained；When the ambient brightness is more than or equal to first
During given threshold, fingerprint image at least twice is obtained.
Wherein, the first given threshold can be 6000lux., then can be true when ambient brightness is less than the first given threshold
Determine current environment light the fingerprint image of optical fingerprint sensor is obtained without having an impact, or influence smaller.And work as environment
When brightness is more than or equal to the first given threshold, then it can determine that current environment light obtains to the fingerprint image of optical fingerprint sensor
Certain influence, it is necessary to obtain multiple fingerprint image and then determine fingerprint image to be identified can be produced.The benefit so set is can
To be the times of acquisition that fingerprint image is determined according to ambient brightness, when receive have a great influence when, multiple fingerprint can be obtained, improve
Recognition accuracy during larger interference is received in fingerprint identification process.
S103, when obtain fingerprint image number be one time when, it is determined that the fingerprint image got is fingerprint image to be identified
Picture；When the number for obtaining fingerprint image is at least twice, finger to be identified is determined according to the fingerprint image got at least twice
Print image.
Wherein, it is true according to the fingerprint image got at least twice when the number for obtaining fingerprint image is at least twice
Fixed fingerprint image to be identified.Can be that quality is preferably used as finger to be identified according in the fingerprint image got at least twice
Print image, quality preferably can be that the effective area of fingerprint image is larger, be easy to that multiple characteristic points are identified, or fingerprint
Fingerprint is more continuous in image.It can also be and determine computing of the fingerprint image obtained at least twice Jing Guo preset rules and then really
Fixed fingerprint image to be identified.
S104, database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
Wherein, database can be local data base and cloud database, or network data base etc..Fingerprint matching can
Be by identifying that the characteristic point of fingerprint image to be identified and the characteristic point of all fingerprint images in database are matched, and then
According to matching result determine current fingerprint image to be identified be with the fingerprint image in database whether the match is successful and with number
According to which of storehouse fingerprint image, the match is successful, determines fingerprint recognition result.
The technical scheme that the embodiment of the present application is provided, by after fingerprint image acquisition event is triggered, obtaining movement
Terminal is presently in the ambient brightness of environment；Determined to obtain the number of fingerprint image according to the ambient brightness；And according to acquisition
Number determines fingerprint image to be identified, and then carries out fingerprint recognition.By using technical scheme provided herein, Ke Yishi
Now improve the accuracy in mobile terminal progress fingerprint identification process, the effect influenceed caused by reducing other factors.
Fig. 2 is the schematic flow sheet for another fingerprint identification method that the embodiment of the present application provides, as shown in Fig. 2 the party
Method includes：
S201, after fingerprint image obtains event and is triggered, obtain mobile terminal and be presently in the ambient brightness of environment.
S202, the number according to ambient brightness determination acquisition fingerprint image.
Whether S203, the number for judging to obtain fingerprint image are once；If once, then S204 is performed, if at least two
It is secondary, then perform S205.
What deserves to be explained is S203 can judge the times of acquisition of fingerprint image, such as environment by judging ambient brightness
When brightness is more than the first given threshold, times of acquisition is at least twice, when ambient brightness is less than the first given threshold, times of acquisition
For once.Namely S203 can merge into a step with S202.
The fingerprint image that S204, determination are got is fingerprint image to be identified；And perform S207.
S205, light source the first fingerprint image of acquisition for closing optical fingerprint sensor, open the light of optical fingerprint sensor
Source obtains the second fingerprint image.
Wherein, the light source of optical fingerprint sensor can be the organic luminous layer of OLED screen curtain.Closing and open light source can
The fingerprint image that only gets in the case of natural light to obtain one, one be optical fingerprint sensor light source with from
The fingerprint image got under right light collective effect.
S206, the brightness for carrying out using second fingerprint image and first fingerprint image corresponding pixel points make the difference place
Reason, obtains fingerprint image to be identified.
Wherein, corresponding pixel points can be that the fingerprint image of optical fingerprint sensor obtains pixel corresponding to region, such as
All it is the pixel that the third line the 4th arranges in the region, as corresponding pixel points.The benefit so set is can to improve calculating
Efficiency.The direct pixel corresponding to carries out brightness and made the difference, and obtains under the light source effect of only optical fingerprint sensor
Fingerprint image, as fingerprint image to be identified, noise caused by natural light influence can be eliminated.
In the embodiment of the present application, the principle so set is to obtain the speed of fingerprint image twice, i.e., in OLED
The stopping of shielding organic luminous layer is luminous and starts two luminous moments and obtains fingerprint image, and the time difference is shorter, can be with
Completed in 0.01 second to 0.1 second, it is believed that the finger of user does not have on optical fingerprint sensor module in the process
It is moved.Based on this, each pixel corresponding brightness that region can be directly obtained to fingerprint image makes the difference.
In the embodiment of the present application, optionally, the fingerprint image that the basis is got at least twice determines finger to be identified
Print image, in addition to：Obtain 1 individual features points in each fingerprint image；Accordingly, second fingerprint is utilized
The brightness that image carries out corresponding pixel points with first fingerprint image makes the difference, and obtains fingerprint image to be identified, including：Root
According to the position of described two individual features points, the respective pixel of second fingerprint image and first fingerprint image is determined
Point；Brightness to the corresponding pixel points makes the difference, and obtains fingerprint image to be identified.
The benefit so set is can to get at least two characteristic points according to the fingerprint image currently recognized, simultaneously
The pixel pair of fingerprint image is determined according at least two pixels of determination in the first fingerprint image and the second fingerprint image
It should be related to, and then do brightness and make the difference, obtain fingerprint image to be identified.
S207, database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
The technical program is on the basis of above-mentioned each technical scheme, there is provided one kind is getting at least two fingerprint images
When, a fingerprint image to be identified that can be filtered out natural light and influence is determined if realized by algorithm, and then improve fingerprint image
The recognition efficiency of picture, reduce probability of mismatch and erroneous matching rate.
On the basis of above-mentioned each technical scheme, optionally, after obtaining event when fingerprint image and being triggered, movement is obtained
Terminal is presently in after the ambient brightness of environment, in addition to：When the ambient brightness is more than or equal to the second given threshold, to
User sends prompt message, and the prompt message is used to prompt user to switch to progress fingerprint recognition operation at backlight；Wherein, institute
State the second given threshold and be more than first given threshold.Wherein the second given threshold can be 9000lux.What is so set is good
Place is can be stronger in light, and optical fingerprint sensor module is difficult when getting effective fingerprint image, by sound, light and
Text importing mode prompts user, switches to progress fingerprint recognition operation at backlight.Fingerprint image can be improved by so setting
Recognition efficiency and the accuracy of identification.
Fig. 3 be the embodiment of the present application provide a kind of fingerprint recognition device structured flowchart, the device can by software and/
Or hardware is realized, is typically integrated in mobile terminal, can be carried out fingerprint recognition by performing fingerprint identification method.Such as Fig. 3 institutes
Show, the device includes：
Ambient brightness acquisition module 301, for after fingerprint image obtains event and is triggered, obtaining the current institute of mobile terminal
Locate the ambient brightness of environment；
Fingerprint image times of acquisition determining module 302, for being determined to obtain time of fingerprint image according to the ambient brightness
Number；
Fingerprint image determining module 303 to be identified, for when obtain fingerprint image number be one time when, it is determined that getting
Fingerprint image be fingerprint image to be identified；When the number for obtaining fingerprint image at least twice when, according to obtaining at least twice
To fingerprint image determine fingerprint image to be identified；
Fingerprint identification module 304, for carrying out database fingerprint matching to the fingerprint image to be identified, tied according to matching
Fruit carries out fingerprint recognition.
The technical scheme that the embodiment of the present application is provided, by after fingerprint image acquisition event is triggered, obtaining movement
Terminal is presently in the ambient brightness of environment；Determined to obtain the number of fingerprint image according to the ambient brightness；And according to acquisition
Number determines fingerprint image to be identified, and then carries out fingerprint recognition.By using technical scheme provided herein, Ke Yishi
Now improve the accuracy in mobile terminal progress fingerprint identification process, the effect influenceed caused by reducing other factors.
Further, the fingerprint image times of acquisition determining module 302 includes：
First print image times of acquisition determining unit, for when the ambient brightness is less than the first given threshold, obtaining
Fingerprint image；
Second print image times of acquisition determining unit, for when the ambient brightness is more than or equal to the first given threshold,
Obtain fingerprint image at least twice.
Further, the second print image times of acquisition determining unit is specifically used for：
When the ambient brightness is more than or equal to the first given threshold, the light source for closing optical fingerprint sensor obtains first
Fingerprint image, the light source for opening optical fingerprint sensor obtain the second fingerprint image.
Accordingly, the fingerprint image determining module 303 to be identified is specifically used for：
The brightness for being carried out corresponding pixel points with first fingerprint image using second fingerprint image is made the difference, and is obtained
To fingerprint image to be identified.
Further, the light source of the optical fingerprint sensor includes the organic luminous layer of OLED display.
Further, the fingerprint image determining module 303 to be identified is additionally operable to：
Obtain 1 individual features points in each fingerprint image；
Accordingly, the brightness for being carried out corresponding pixel points with first fingerprint image using second fingerprint image is made the difference
Processing, obtains fingerprint image to be identified, including：
According to the position of described two individual features points, second fingerprint image and first fingerprint image are determined
Corresponding pixel points；
Brightness to the corresponding pixel points makes the difference, and obtains fingerprint image to be identified.
Further, described device also includes：
Reminding module, for when the ambient brightness is more than or equal to the second given threshold, issuing the user with prompt message,
The prompt message is used to prompt user to switch to progress fingerprint recognition operation at backlight；Wherein, second given threshold is big
In first given threshold.
The embodiment of the present application also provides a kind of storage medium for including computer executable instructions, and the computer can perform
Instruction is used to perform a kind of fingerprint identification method when being performed by computer processor, and this method includes：
After fingerprint image, which obtains event, to be triggered, the ambient brightness that mobile terminal is presently in environment is obtained；
Determined to obtain the number of fingerprint image according to the ambient brightness；
When the number for obtaining fingerprint image is one time, it is determined that the fingerprint image got is fingerprint image to be identified；When
When the number for obtaining fingerprint image is at least twice, fingerprint image to be identified is determined according to the fingerprint image got at least twice
Picture；
Database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
Storage medium --- any various types of memory devices or storage device.Term " storage medium " is intended to wrap
Include：Install medium, such as CD-ROM, floppy disk or magnetic tape equipment；Computer system memory or random access memory, such as
DRAM, DDR RAM, SRAM, EDO RAM, blue Bath (Rambus) RAM etc.；Nonvolatile memory, such as flash memory, magnetizing mediums
(such as hard disk or optical storage)；Memory component of register or other similar types etc..Storage medium can also include other
The memory of type or its combination.In addition, storage medium can be located at program in the computer system being wherein performed, or
It can be located in different second computer systems, second computer system is connected to computer by network (such as internet)
System.Second computer system can provide programmed instruction and be used to perform to computer.Term " storage medium " can include can
To reside in diverse location two or more storage mediums of (such as in different computer systems by network connection).
Storage medium can store the programmed instruction (such as being implemented as computer program) that can be performed by one or more processors.
Certainly, a kind of storage medium for including computer executable instructions that the embodiment of the present application is provided, its computer
The fingerprint recognition operation that executable instruction is not limited to the described above, can also carry out the fingerprint that the application any embodiment is provided
Associative operation in recognition methods.
The embodiment of the present application provides a kind of mobile terminal, and the finger of the embodiment of the present application offer can be integrated in the mobile terminal
Line identification device.Fig. 4 is a kind of structural representation for mobile terminal that the embodiment of the present application provides.As shown in figure 4, the movement is whole
End can include：Memory 401, central processing unit (Central Processing Unit, CPU) 402 (also known as processor, with
Lower abbreviation CPU), circuit board (not shown) and power circuit (not shown).The circuit board is placed in the housing
The interior volume surrounded；The CPU402 and the memory 401 are arranged on the circuit board；The power circuit, is used for
Powered for each circuit or device of the mobile terminal；The memory 401, for storing executable program code；It is described
CPU402 is run and the executable program code pair by reading the executable program code stored in the memory 401
The computer program answered, to realize following steps：
After fingerprint image, which obtains event, to be triggered, the ambient brightness that mobile terminal is presently in environment is obtained；
Determined to obtain the number of fingerprint image according to the ambient brightness；
When the number for obtaining fingerprint image is one time, it is determined that the fingerprint image got is fingerprint image to be identified；When
When the number for obtaining fingerprint image is at least twice, fingerprint image to be identified is determined according to the fingerprint image got at least twice
Picture；
Database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
The mobile terminal also includes：Peripheral Interface 403, RF (Radio Frequency, radio frequency) circuit 405, audio-frequency electric
Road 406, loudspeaker 411, power management chip 408, input/output (I/O) subsystem 409, touch-screen 412, other input/controls
Control equipment 410 and outside port 404, these parts are communicated by one or more communication bus or signal wire 407.
It should be understood that diagram mobile terminal 400 is only an example of mobile terminal, and mobile terminal 400
Can have than more or less parts shown in figure, can combine two or more parts, or can be with
Configured with different parts.Various parts shown in figure can be including one or more signal transactings and/or special
Hardware, software including integrated circuit are realized in the combination of hardware and software.
Below with regard to the present embodiment provide the mobile terminal for fingerprint recognition be described in detail, the mobile terminal with
Exemplified by mobile phone.
Memory 401, the memory 401 can be accessed by CPU402, Peripheral Interface 403 etc., and the memory 401 can
Including high-speed random access memory, can also include nonvolatile memory, such as one or more disk memories,
Flush memory device or other volatile solid-state parts.
The input of equipment and output peripheral hardware can be connected to CPU402 and deposited by Peripheral Interface 403, the Peripheral Interface 403
Reservoir 401.
I/O subsystems 409, the I/O subsystems 409 can be by the input/output peripherals in equipment, such as touch-screen 412
With other input/control devicess 410, Peripheral Interface 403 is connected to.I/O subsystems 409 can include the He of display controller 4091
For controlling one or more input controllers 4092 of other input/control devicess 410.Wherein, one or more input controls
Device 4092 processed receives electric signal from other input/control devicess 410 or sends electric signal to other input/control devicess 410,
Other input/control devicess 410 can include physical button (pressing button, rocker buttons etc.), dial, slide switch, behaviour
Vertical pole, click on roller.What deserves to be explained is input controller 4092 can with it is following any one be connected：Keyboard, infrared port,
The instruction equipment of USB interface and such as mouse.
Touch-screen 412, the touch-screen 412 are the input interface and output interface between customer mobile terminal and user,
Visual output display can be included into figure, text, icon, video etc. to user, visual output.
Display controller 4091 in I/O subsystems 409 receives electric signal from touch-screen 412 or sent out to touch-screen 412
Electric signals.Touch-screen 412 detects the contact on touch-screen, and the contact detected is converted to and shown by display controller 4091
The interaction of user interface object on touch-screen 412, that is, realize man-machine interaction, the user interface being shown on touch-screen 412
Icon that object can be the icon of running game, be networked to corresponding network etc..What deserves to be explained is equipment can also include light
Mouse, light mouse is not show the touch sensitive surface visually exported, or the extension of the touch sensitive surface formed by touch-screen.
RF circuits 405, it is mainly used in establishing the communication of mobile phone and wireless network (i.e. network side), realizes mobile phone and wireless network
The data receiver of network and transmission.Such as transmitting-receiving short message, Email etc..Specifically, RF circuits 405 receive and send RF letters
Number, RF signals are also referred to as electromagnetic signal, and RF circuits 405 convert electrical signals to electromagnetic signal or electromagnetic signal is converted into telecommunications
Number, and communicated by the electromagnetic signal with communication network and other equipment.RF circuits 405 can include being used to perform
The known circuit of these functions, it includes but is not limited to antenna system, RF transceivers, one or more amplifiers, tuner, one
Individual or multiple oscillators, digital signal processor, CODEC (COder-DECoder, coder) chipset, user identify mould
Block (Subscriber Identity Module, SIM) etc..
Voicefrequency circuit 406, it is mainly used in receiving voice data from Peripheral Interface 403, the voice data is converted into telecommunications
Number, and the electric signal is sent to loudspeaker 411.
Loudspeaker 411, for the voice signal for receiving mobile phone from wireless network by RF circuits 405, it is reduced to sound
And play the sound to user.
Power management chip 408, the hardware for being connected by CPU402, I/O subsystem and Peripheral Interface are powered
And power management.
The mobile terminal that the embodiment of the present application provides, it is possible to achieve improve the standard in mobile terminal progress fingerprint identification process
True property, the effect influenceed caused by reducing other factors.
Fingerprint identification device, storage medium and the mobile terminal provided in above-described embodiment, which can perform the application, arbitrarily to be implemented
The fingerprint identification method that example is provided, possess and perform the corresponding functional module of this method and beneficial effect.Not in above-described embodiment
In detailed description ins and outs, reference can be made to the fingerprint identification method that the application any embodiment is provided.
Pay attention to, above are only preferred embodiment and the institute's application technology principle of the application.It will be appreciated by those skilled in the art that
The application is not limited to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
The protection domain readjusted and substituted without departing from the application.Therefore, although being carried out by above example to the application
It is described in further detail, but the application is not limited only to above example, in the case where not departing from the application design, also
Other more equivalent embodiments can be included, and scope of the present application is determined by scope of the appended claims.
Claims (10)
- A kind of 1. fingerprint identification method, it is characterised in that including：After fingerprint image, which obtains event, to be triggered, the ambient brightness that mobile terminal is presently in environment is obtained；Determined to obtain the number of fingerprint image according to the ambient brightness；When the number for obtaining fingerprint image is one time, it is determined that the fingerprint image got is fingerprint image to be identified；Work as acquisition When the number of fingerprint image is at least twice, fingerprint image to be identified is determined according to the fingerprint image got at least twice；Database fingerprint matching is carried out to the fingerprint image to be identified, fingerprint recognition is carried out according to matching result.
- 2. fingerprint identification method according to claim 1, it is characterised in that determined to obtain fingerprint according to the ambient brightness The number of image, including：When the ambient brightness is less than the first given threshold, a fingerprint image is obtained；When the ambient brightness is more than or equal to the first given threshold, fingerprint image at least twice is obtained.
- 3. fingerprint identification method according to claim 2, it is characterised in that when the ambient brightness is set more than or equal to first When determining threshold value, fingerprint image at least twice is obtained, including：When the ambient brightness is more than or equal to the first given threshold, the light source for closing optical fingerprint sensor obtains the first fingerprint Image, the light source for opening optical fingerprint sensor obtain the second fingerprint image；Accordingly, fingerprint image to be identified is determined according to the fingerprint image got at least twice, including：The brightness for being carried out corresponding pixel points with first fingerprint image using second fingerprint image is made the difference, and is treated Identify fingerprint image.
- 4. fingerprint identification method according to claim 3, it is characterised in that the light source of the optical fingerprint sensor includes The organic luminous layer of OLED display.
- 5. fingerprint identification method according to claim 3, it is characterised in that the fingerprint that the basis is got at least twice Image determines fingerprint image to be identified, in addition to：Obtain 1 individual features points in each fingerprint image；Accordingly, the brightness for corresponding pixel points being carried out using second fingerprint image and first fingerprint image makes the difference place Reason, obtains fingerprint image to be identified, including：According to the position of described two individual features points, determine that second fingerprint image is corresponding with first fingerprint image Pixel；Brightness to the corresponding pixel points makes the difference, and obtains fingerprint image to be identified.
- 6. fingerprint identification method according to claim 1, it is characterised in that be triggered when fingerprint image obtains event Afterwards, mobile terminal is obtained to be presently in after the ambient brightness of environment, in addition to：When the ambient brightness is more than or equal to the second given threshold, prompt message is issued the user with, the prompt message is used for Prompting user switches to progress fingerprint recognition operation at backlight；Wherein, second given threshold is more than the described first setting threshold Value.
- A kind of 7. fingerprint identification device, it is characterised in that including：Ambient brightness acquisition module, for after fingerprint image obtains event and is triggered, obtaining mobile terminal and being presently in environment Ambient brightness；Fingerprint image times of acquisition determining module, for being determined to obtain the number of fingerprint image according to the ambient brightness；Fingerprint image determining module to be identified, for when obtain fingerprint image number be one time when, it is determined that the fingerprint got Image is fingerprint image to be identified；When the number for obtaining fingerprint image is at least twice, according to the finger got at least twice Print image determines fingerprint image to be identified；Fingerprint identification module, for carrying out database fingerprint matching to the fingerprint image to be identified, carried out according to matching result Fingerprint recognition.
- 8. fingerprint identification device according to claim 7, it is characterised in that the fingerprint image times of acquisition determining module Including：First print image times of acquisition determining unit, for when the ambient brightness is less than the first given threshold, obtaining once Fingerprint image；Second print image times of acquisition determining unit, for when the ambient brightness is more than or equal to the first given threshold, obtaining Fingerprint image at least twice.
- 9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is held by processor The fingerprint identification method as described in any in claim 1-6 is realized during row.
- 10. a kind of mobile terminal, including memory, processor and storage are on a memory and can be in the computer of processor operation Program, it is characterised in that realize the finger as described in any in claim 1-6 described in the computing device during computer program Line recognition methods.
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