CN106066951A - Unlocking screen method, image-pickup method and the device of a kind of electric terminal - Google Patents
Unlocking screen method, image-pickup method and the device of a kind of electric terminal Download PDFInfo
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- CN106066951A CN106066951A CN201610352219.7A CN201610352219A CN106066951A CN 106066951 A CN106066951 A CN 106066951A CN 201610352219 A CN201610352219 A CN 201610352219A CN 106066951 A CN106066951 A CN 106066951A
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- image
- tuning parameter
- electric terminal
- screen
- geographic position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
Abstract
The embodiment of the invention discloses a kind of unlocking screen method of electric terminal, including: getting fingerprint image and determining the current geographic position of electric terminal；The target geographic position region that current geographic position falls into is judged according to the multiple geographic location area divided in advance；Adjust the target geographic position region of record using the tuning parameter that frequency is the highest carry out the automatic of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and the tuning parameter after every time adjusting is used to debug currently gathering the image got；Target image is chosen from the image after each debugging；Whether recognition target image meets unlocking condition, and is unlocked the screen of electric terminal when identification meets.Correspondingly the invention also discloses a kind of image-pickup method, electric terminal and i.e. image collecting device, it is achieved that only tuning parameter need to be adjusted several times and can complete to adopt figure, improve and adopt figure efficiency.
Description
Technical field
The present invention relates to computer realm, particularly relate to a kind of unlocking screen method of electric terminal, image-pickup method,
Electric terminal and image collecting device.
Background technology
Along with electronics technology and the development of the Internet, the function of mobile terminal from strength to strength, as long as such as user presses
Demand according to self installs various client production on mobile terminals, just can obtain a lot of consultation information, it might even be possible to foot
Completing a lot of thing with not going out family, life and the amusement of people increasingly be unable to do without electric terminal.
Currently, fingerprint identification technology has become as the standard configuration of main flow mobile terminal manufacturer flagship type, and fingerprint recognition is not only
May be used for the unlocking screen of mobile terminal and the function such as wake up up, being also the important ring of mobile payment.
The process of fingerprint recognition is divided into: extracts feature, preserve data and comparison.At the beginning, pass through fingerprint reading systems
Read the image of somatic fingerprint, after getting fingerprint image, original image will be carried out preliminary process, be allowed to apparent,
Then Feature Points Matching is carried out with registered fingerprint template.After the match is successful, system unlocks, and unlocks this from reading fingerprint to system
The individual time is referred to as unlocked time.
The speed of unlocked time has become as the bright spot of a product competition of Ge great producer, how to improve unblock speed,
Reduce unlocked time, be the hot issue of current research.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, it is provided that a kind of unlocking screen method of electric terminal, figure
As acquisition method, electric terminal and image collecting device, can further improve unblock speed, reduce unlocked time, meet user
Carry out the demand of unlocking screen safely and fast.
In order to solve above-mentioned technical problem, embodiment of the present invention first aspect discloses the unlocking screen of a kind of electric terminal
Method, including:
The current geographic position of electric terminal is determined when getting fingerprint image；
Multiple geographic location area according to dividing in advance judge the target geographic position that described current geographic position falls into
Region；
Using tuning parameter the highest for use frequency in the described target geographic position region of record as initial tuning parameter
And carry out the automatic adjustment of tuning parameter, to obtain the tuning parameter after some adjustment, and use the debugging ginseng after every time adjusting
Several debug currently gathering the image got；
Target image is chosen from the image after each debugging；
Identify whether described target image meets unlocking condition, and when identification meets, the screen of electric terminal is solved
Lock.
In conjunction with first aspect, in the implementation that the first is possible, the described described target geographic position district by record
Before territory using the tuning parameter that frequency is the highest carry out the adjustment automatically of tuning parameter as initial tuning parameter, also wrap
Include:
According to record upper n times choose gather image time use tuning parameter, and divide in advance the plurality ofly
The reason band of position, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N is positive integer.
In conjunction with first aspect, in the implementation that the second is possible, described from each time debugging after image choose mesh
Logo image, including:
The signal noise ratio (snr) of image of the image after relatively each time debugging；
The image choosing signal noise ratio (snr) of image maximum is target image.
In conjunction with first aspect, in the implementation that the third is possible, described electric terminal is provided with dome keys, Yong Hutong
Cross finger and press described dome keys triggering unlocking screen；When described electric terminal is in and puts out screen screen lock state, described method
Also include:
Before receiving the operational order pressing described dome keys, detect that finger touches by described dome keys
Time, trigger and getting, described in performing, the step that fingerprint image determines the current geographic position of electric terminal.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, described identification
Whether described target image meets unlocking condition, and is unlocked the screen of electric terminal when identification meets, including:
Identify described target image with preset for unlocking whether the image of authentication mates；
Work as identification and matching, and after receiving the operational order pressing described dome keys, the screen of electric terminal is entered
Row unlocks and lights screen.
Embodiment of the present invention second aspect discloses a kind of image-pickup method, including:
According to record upper n times choose gather image time use tuning parameter, and divide in advance adopt multiple geography
The band of position, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N is positive integer；
The current geographic position of electric terminal is determined when getting fingerprint image by acquisition module；According to dividing in advance
Multiple geographic location area judge the target geographic position region that described current geographic position falls into；
Using tuning parameter the highest for use frequency in the described target geographic position region of record as initial tuning parameter
And carry out the automatic adjustment of tuning parameter, to obtain the tuning parameter after some adjustment, and use the debugging ginseng after every time adjusting
Several debug currently gathering the image got；
Target image is chosen from the image after each debugging.
In conjunction with second aspect, in the implementation that the first is possible, described from each time debugging after image choose mesh
Logo image, including:
The signal noise ratio (snr) of image of the image after relatively each time debugging；
The image choosing signal noise ratio (snr) of image maximum is target image.
The embodiment of the present invention third aspect discloses a kind of electric terminal, including:
First gathers and determines module, for getting fingerprint image and determine the current geographic position of electric terminal；
According to the multiple geographic location area divided in advance, first judge module, for judging that described current geographic position falls
The target geographic position region entered；
First adjusts debugging module, for using the debugging that frequency is the highest in the described target geographic position region of record
Parameter carries out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and makes
Debug currently gathering the image got with the tuning parameter after adjust every time；
First chooses module, for choosing target image from the image after each debugging；
Identify unlocked state, be used for identifying whether described target image meets unlocking condition, and when identification meets to electricity
The screen of sub-terminal is unlocked.
In conjunction with second aspect, in the implementation that the first is possible, electric terminal also includes:
First statistical module, for adjusting debugging module by the described target geographic position region of record described first
Before the tuning parameter using frequency the highest carries out the adjustment automatically of tuning parameter as initial tuning parameter, according to record
Upper n times choose the tuning parameter used when gathering image, and the plurality of geographic location area divided in advance, count each
Individual geographic location area uses the tuning parameter that frequency is the highest；Described N is positive integer.
In conjunction with second aspect, in the implementation that the second is possible, described first chooses module includes:
First comparing unit, the signal noise ratio (snr) of image of the image after relatively each time debugging；
First chooses elementary area, is target image for the image choosing signal noise ratio (snr) of image maximum.
In conjunction with second aspect, in the implementation that the third is possible, described electric terminal is provided with dome keys, Yong Hutong
Cross finger and press described dome keys triggering unlocking screen；When described electric terminal is in and puts out screen screen lock state, described electronics
Terminal also includes:
Trigger module, for before receiving the operational order pressing described dome keys, is examined by described dome keys
When measuring finger touch, trigger described first collection of execution and determine that module performs to determine electric terminal when getting fingerprint image
The step of current geographic position.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described identification
Unlocked state includes:
Identification and matching unit, for identify described target image with default for unlocking whether the image of authentication mates；
Unlock bright screen unit, for when described identification and matching unit identification and matching, and receive the described dome of pressing by
After the operational order of key, the screen of electric terminal is unlocked and lights screen.
Embodiment of the present invention fourth aspect discloses a kind of image collecting device, including:
Second statistical module, the tuning parameter used during for choosing gather image according to the upper n times of record, and in advance
Divide adopts multiple geographic location area, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N
For positive integer；
Second collection determines module, for determining image collecting device when getting fingerprint image by acquisition module
Current geographic position；
Second adjusts debugging module, for using the debugging that frequency is the highest in the described target geographic position region of record
Parameter carries out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and makes
Debug currently gathering the image got with the tuning parameter after adjust every time；
Second chooses module, for choosing target image from the image after each debugging.
In conjunction with fourth aspect, in the implementation that the first is possible, described second chooses module includes:
Second comparing unit, the signal noise ratio (snr) of image of the image after relatively each time debugging；
Second chooses elementary area, is target image for the image choosing signal noise ratio (snr) of image maximum.
The embodiment of the present invention the 5th aspect discloses a kind of computer-readable storage medium, and described computer-readable storage medium storage has
Program, described program includes embodiment of the present invention first aspect, or the first possible realization side of first aspect when performing
Formula, or the implementation that the second of first aspect is possible, or the third possible implementation of first aspect, or
The step of the unlocking screen method of the electric terminal disclosed in the 4th kind of possible implementation of first aspect.
The embodiment of the present invention the 6th aspect discloses a kind of electric terminal, including: processor, memorizer and fingerprint collecting
Equipment；Wherein, described fingerprint collecting equipment is used for gathering fingerprint image；Described processor is used for holding embodiment of the present invention first party
Face, or the first possible implementation of first aspect, or the implementation that the second of first aspect is possible, or
Electronics disclosed in the third possible implementation of first aspect, or the 4th kind of possible implementation of first aspect
The unlocking screen method of terminal, or perform embodiment of the present invention second aspect, or the first possible reality of second aspect
Image-pickup method disclosed in existing mode.
Implement the embodiment of the present invention, have the advantages that
The tuning parameter used during by choosing gather image according to the upper n times of record, and adopting of dividing in advance is multiple
Geographic location area, counts and uses the tuning parameter that frequency is the highest in each geographic location area, fall from current geographic position
The target geographic position region entered uses the tuning parameter that frequency is the highest proceed by the automatic adjustment of tuning parameter, and use
Tuning parameter adjust every time after is debugged currently gathering the image got, and chooses the image after debugging for each time
Target image, is unlocked the screen of electric terminal when identifying this target image and meeting unlocking condition, it is achieved that only need
Tuning parameter is adjusted several times and can complete to adopt figure, the number of times that tuning parameter adjusts can be greatly saved, solve existing skill
Art generally requires the problem longer by tens figure time of adopting causing the adjustment of tuning parameter the most hundreds of time, significantly
Reduce and adopt the figure time, it is possible to combine the weather attribute in each geographical position, further increase and adopt figure efficiency, thus realize
Further raising unlocking screen speed, decreases the unlocking screen time, meets user security and be quickly carried out unlocking screen
Demand, improve user and unlock experience.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the unlocking screen method of the electric terminal that the embodiment of the present invention provides；
Fig. 2 is the unlocking screen principle schematic flow diagram of the electric terminal that the embodiment of the present invention provides；
Fig. 3 is the schematic flow sheet of the image-pickup method that the present invention provides；
Fig. 4 is the structural representation of the electric terminal that the embodiment of the present invention provides；
Fig. 5 is the structural representation of another embodiment of the electric terminal that the present invention provides；
Fig. 6 is the structural representation that module is chosen in the first of embodiment of the present invention offer；
Fig. 7 is the structural representation of another embodiment of the electric terminal that the present invention provides；
Fig. 8 is the structural representation identifying unlocked state that the embodiment of the present invention provides；
Fig. 9 is the structural representation of another embodiment of the electric terminal that the present invention provides；
Figure 10 is the structural representation of the image collecting device that the embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
It should be noted that the term used in embodiments of the present invention is only merely for the mesh describing specific embodiment
, and it is not intended to be limiting the present invention." one of singulative used in the embodiment of the present invention and appended claims
Kind ", " described " and " being somebody's turn to do " be also intended to include majority form, unless context clearly shows that other implications.It is also understood that this
Any or all possible group that the term "and/or" used in literary composition refers to and comprises one or more project of listing being associated
Close.
The embodiment of the invention discloses a kind of unlocking screen method of electric terminal, it is achieved that quick screen unlocks.In conjunction with
Accompanying drawing is described in detail.
The schematic flow sheet of the unlocking screen method of the electric terminal that the embodiment of the present invention as shown in Figure 1 provides, including:
Step S100: getting fingerprint image and determine the current geographic position of electric terminal；
Specifically, electric terminal can pass through acquisition module, such as fingerprint sensor etc., gathers the fingerprint image of user's input
Picture；Electric terminal, when being obtained by acquisition module or collecting fingerprint image, can pass through global positioning system (Global
Positioning System, GPS) or BEI-DOU position system etc. determine the current geographic position of this electric terminal.
Step S102: the multiple geographic location area according to dividing in advance judge the target that described current geographic position falls into
Geographic location area；
Specifically, the electric terminal of the embodiment of the present invention can pre-set or divide a lot of geographic location area, should
Geographic location area can include different cities, or the different cities in same city, or the various zones in same city
Etc..The present invention does not limit geographic location area dividing mode.
Step S104: using tuning parameter the highest for use frequency in the described target geographic position region of record as initially
Tuning parameter and carry out the automatic adjustment of tuning parameter, to obtain the tuning parameter after some adjustment, and after using and adjusting every time
Tuning parameter debug currently gathering the image got；
Specifically, when electric terminal is by acquisition module, when collecting the fingerprint image of user's input, need repeatedly to adjust
Tuning parameter, the tuning parameter in the embodiment of the present invention includes automatic suitable solution (Capacity Auto Control, CAC)
Parameter, by the tuning parameter adjust every time after, the image collected is processed, thus obtains some and gather images,
And finally choose the best image of definition as the follow-up image being identified.
It should be noted that before step S104, the unlocking screen method of the electric terminal of the embodiment of the present invention is every time
After collecting image and finally have chosen the image that definition is best, can record and process in each geographical position that to obtain this clear
The corresponding tuning parameter used of image that clear degree is best, then when performing before step S104, can be according to the upper N of record
The secondary tuning parameter used when gathering image of choosing, and the plurality of geographic location area divided in advance, count each ground
Reason uses, in the band of position, the tuning parameter that frequency is the highest；This N is positive integer；Specifically, the geographical position every time gathered is returned
Entering to corresponding geographic location area, then add up the tuning parameter that in each geographic location area, access times are most, this makes
With the most tuning parameter of number of times i.e. it is believed that the embodiment of the present invention counts the tuning parameter using frequency the highest.
Also, it should be noted the tuning parameter in each embodiment of the present invention can include following at least one:
Gain gain parameter, digital-to-analogue converter (Analog-to-digital converter, ADC) parameter, pixel gain
Pixel gain parameter, etc. parameter.
The most specifically, step S104 using the highest tuning parameter of this use frequency as benchmark (i.e. as initially debugging ginseng
Number), proceed by automatically adjustment from the tuning parameter that this use frequency is the highest, automatically adjusting in the embodiment of the present invention can be with
Millisecond rank is automatically adjusted, and uses the tuning parameter adjust every time after to adjust currently gathering the image got
Examination, obtains the image after each debugging.
Step S106: choose target image from the image after each debugging；
Specifically, the highest image of definition can be chosen as target image, carry out image recognition unblock for follow-up.
It is possible to further by the signal noise ratio (snr) of image of the image after each debugging of com-parison and analysis, it is believed that the figure that signal noise ratio (snr) of image is maximum
As the image that to be definition the highest, best, thus the image choosing signal noise ratio (snr) of image maximum is used as target image.
Step S108: identify whether described target image meets unlocking condition, and when identification meets to electric terminal
Screen is unlocked.
Specifically, electric terminal can pre-set unlocking condition, such as target image will with for unlocking the figure of authentication
As coupling, target image have certain characteristic information default etc., when identifying this target image and meeting default unlocking condition,
The screen of electric terminal can be unlocked.
By the embodiment of the present invention, as a example by unlocked by fingerprint, although for different finger print acquisition modules and different use
For family finger (dry and wet finger is had any different), the parameter of CAC is Protean, but for an independent electric terminal and list
An only user, the service condition of the most daily middle domestic consumer.Because finger print acquisition module performance is determined dispatching from the factory when
Fixed, the finger of user is also fixing.Therefore, when carrying out this collection image current, by the upper n times according to record
Choose the tuning parameter used when gathering image, and divide in advance adopt multiple geographic location area, count each geographical
The band of position uses the tuning parameter that frequency is the highest, from the target geographic position region that current geographic position falls into, uses frequency
The tuning parameter that rate is the highest proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to currently adopting
The image that collection gets is debugged, and chooses target image from the image after each debugging, is identifying this target image
When meeting unlocking condition, the screen to electric terminal is unlocked, it is achieved that only need to adjust tuning parameter several times can be complete
Cheng Caitu, can be greatly saved tuning parameter adjust number of times, solve prior art generally requires by tens times the most several
The problem that what hundred adjustment to tuning parameter caused adopt figure time is longer, greatly reduces and adopts the figure time, it is possible to combine every
The weather attribute in individual geographical position, further increases and adopts figure efficiency, it is achieved thereby that improve unlocking screen speed further, subtracts
Lack the unlocking screen time, met user security and be quickly carried out the demand of unlocking screen, improve user and unlock experience.
Further, illustrating below as a example by electric terminal is as mobile terminal, the unlocking screen of mobile terminal is permissible
It is divided three classes, unlocks including bright screen, put out screen unblock and put out screen being unlocked by pressing.Wherein, this puts out screen being unlocked by pressing that is this shifting
Dynamic terminal is provided with dome keys, and user presses this dome keys by finger and just triggers unlocking screen.For a user, for
Bright screen unlocks, and the time experiencing unlocking screen is to touch fingerprint from hands to start to last display to unlock the time that interface is experienced；
For put out screen unlock, experience unlocking screen time be from hands touch fingerprint start to last bright screen and show unblock interface institute
The time of experience；And for putting out screen being unlocked by pressing, the time experiencing unlocking screen is to last bright screen from hands pressing dome keys
And show the time that unblock interface is experienced.
It should be noted that the dome keys in the embodiment of the present invention, it is also possible to it is dome sheet, can be one piece and comprise gold
Belong to poly terephthalic acid class plastics (Polyethylene terephthalate, the PET) thin slice of shell fragment (metal dome), be used in print
Circuit board processed (Printed Circuit Board, PCB) or flexible PCB (Flexible Printed Circuit
Board, FPC) etc. use as switch on wiring board, between user and instrument, play an important sense of touch type switch
Effect；It will be appreciated that the dome keys in the embodiment of the present invention can gather the fingerprint image of user, this dome keys is permissible
It is arranged on the positions such as the front of electric terminal, the back side or side, can come according to self-demand according to technical staff or developer
Arranging the position of this dome keys, the embodiment of the present invention is not restricted.
Below for putting out screen being unlocked by pressing, in conjunction with the screen solution of the electric terminal that the embodiment of the present invention shown in Fig. 2 provides
Lock principle schematic flow diagram, then describe the unlocking screen method that the embodiment of the present invention provides in detail:
Electric terminal, before the operational order pressing described dome keys receiving user's input, is i.e. pressed by this dome
Key detects that the finger of user touches, i.e. interrupt requests (Interrupt Request, IRQ) produces and interrupts, then i.e. can touch
Send out and perform getting the step that fingerprint image determines the current geographic position of electric terminal；This step concrete is referred to above-mentioned
The description of step S100, repeats no more here.Then, use frequency the highest from the described target geographic position region of record
Tuning parameter proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to get current collection
Image debug, the signal noise ratio (snr) of image of the image after can being debugged by each time of com-parison and analysis, it is believed that signal noise ratio (snr) of image is
It is the highest that big image is definition, best image, thus the image choosing signal noise ratio (snr) of image maximum is used as target image；
Finally, identify this target image with preset for unlocking whether the image of authentication mates；Work as identification and matching, and
Receive after pressing the operational order of described dome keys, the screen of electric terminal is unlocked and lights screen.
It will be appreciated that the electric terminal of the embodiment of the present invention receives the behaviour pressing described dome keys of user's input
Instruct, i.e. user presses the step of dome keys, i.e. can be after user touches fingerprint by finger, and fingerprint module gathers
Before fingerprint image；Or can also be after fingerprint module gathers fingerprint image, before completing image recognition coupling；Or it is all right
After completing image recognition coupling, before having unlocked.
If it should be noted that image recognition is failed in the embodiment of the present invention, then unlocking screen will not be performed, it is also possible to
The information of recognition failures is exported to user.
By the embodiment of the present invention, not only can solve in prior art and generally require by tens times the most hundreds of time
The problem that figure time of adopting of causing the adjustment of tuning parameter is longer, greatly reduces and adopts the figure time, improve and adopt figure efficiency, and
And when user press dome keys less fast in the case of (such as after completing image recognition coupling, before having unlocked
Pressing dome keys), can will experience the sensation of moment unblock bright screen further.
Yet further, the embodiment of the present invention additionally provides a kind of image-pickup method, and the present invention as shown in Figure 3 provides
The schematic flow sheet of image-pickup method, including:
Step S300: choose the tuning parameter used when gathering image, and adopting of dividing in advance according to the upper n times of record
Multiple geographic location area, count and use the tuning parameter that frequency is the highest in each geographic location area；This N is positive integer；
Step S302: determine the current geographic position of electric terminal when getting fingerprint image by acquisition module；Root
The target geographic position region that described current geographic position falls into is judged according to the multiple geographic location area divided in advance；
Step S304: using tuning parameter the highest for use frequency in the described target geographic position region of record as initially
Tuning parameter and carry out the automatic adjustment of tuning parameter, to obtain the tuning parameter after some adjustment, and after using and adjusting every time
Tuning parameter debug currently gathering the image got；
Step S306: choose target image from the image after each debugging.
Specifically, the signal noise ratio (snr) of image of the image after each debugging can be compared；Choose the image that signal noise ratio (snr) of image is maximum
For target image.
It should be noted that the image-pickup method that Fig. 3 embodiment describes can be implemented with specific reference to above-mentioned Fig. 1 and Fig. 2
About how completing the step of image acquisition in example, repeat no more here.
Pass through the embodiment of the present invention, it is achieved that only tuning parameter need to be adjusted several times and can complete to adopt figure, solve
Prior art generally requires by tens secondary figure time of adopting longer asking that the adjustment of tuning parameter is caused the most hundreds of
Topic, greatly reduces and adopts the figure time, improve and adopt figure efficiency.
Also, it should be noted in step S100 of the embodiment of the present invention or S302, if the geographical position of current acquired image
Putting and do not have record in record, the target geographic position region that i.e. current geographic position falls into did not recorded when choosing collection image
Use tuning parameter time, can directly according to record this on n times choose gather image time use tuning parameter, from all
Geographic location area is chosen the automatic adjustment using the tuning parameter that frequency is the highest to proceed by tuning parameter, and uses every time
Tuning parameter after adjustment is debugged currently gathering the image got.
For the ease of preferably implementing the such scheme of the embodiment of the present invention, the present invention also correspondence provides a kind of electronics eventually
End, the structural representation of the electric terminal that the embodiment of the present invention as shown in Figure 4 provides, electric terminal 40 can include that first adopts
Collection determines that module the 400, first judge module 402, first adjusts debugging module 404, first chooses module 406 and identify and solve locked mode
Block 408, wherein
First gathers and determines that module 400 is for getting fingerprint image and determine the current geographic position of electric terminal；
First judge module 402 is for judging described current geographic position according to the multiple geographic location area divided in advance
The target geographic position region fallen into；
First adjusts debugging module 404 for using the tune that frequency is the highest in the described target geographic position region of record
Examination parameter carries out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and
The tuning parameter adjust every time after is used to debug currently gathering the image got；
First chooses module 406 for choosing target image from the image after each debugging；
Identify that unlocked state 408 is used for identifying whether described target image meets unlocking condition, and when identification meets pair
The screen of electric terminal is unlocked.
Specifically, the structural representation of another embodiment of the electric terminal that the present invention as shown in Figure 5 provides, electronics is eventually
End 40 includes that the first collection determines that module the 400, first judge module 402, first adjusts debugging module 404, first chooses module
Outside 406 with identification unlocked state 408, it is also possible to include the first statistical module 4010, will for adjusting debugging module 404 first
The described target geographic position region of record use the tuning parameter that frequency is the highest debug as initial tuning parameter
Automatically before the adjustment of parameter, the tuning parameter used when choosing collection image according to the upper n times of record, and divide in advance
The plurality of geographic location area, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N is just
Integer.
Further, the first of the embodiment of the present invention as shown in Figure 6 offer chooses the structural representation of module, the first choosing
Delivery block 406 may include that the first comparing unit 4060 and first chooses elementary area 4062, wherein,
The signal noise ratio (snr) of image of first comparing unit 4060 image after relatively each time debugging；
First to choose elementary area 4062 for the image choosing signal noise ratio (snr) of image maximum be target image.
Yet further, electric terminal 40 is provided with dome keys, and user presses described dome keys by finger and triggers screen
Curtain unlocks；When electric terminal 40 is in and puts out screen screen lock state, another of the electric terminal that the present invention as shown in Figure 7 provides is real
Executing the structural representation of example, electric terminal 40 includes that the first collection determines that module the 400, first judge module 402, first adjusts and adjusts
Die trial block 404, first choose module 406, identify outside unlocked state 408 and the first statistical module 4010, it is also possible to include triggering
Module 4012, for before receiving the operational order pressing described dome keys, detects finger by described dome keys
During touch, trigger the first collection and determine that module 400 performs in current geographic position collection and gets image, according to dividing in advance
Multiple geographic location area judge the step in target geographic position region that described current geographic position falls into.
Yet further, the structural representation identifying unlocked state that the embodiment of the present invention as shown in Figure 8 provides, identify
Unlocked state 408 may include that identification and matching unit 4080 and unlocks bright screen unit 4082, wherein,
Identification and matching unit 4080 for identify described target image with preset for unlocking the image of authentication whether
Join；
Unlock bright screen unit 4082 to be used for when identification and matching unit 4080 identification and matching, and receive the described dome of pressing
After the operational order of button, the screen of electric terminal 40 is unlocked and lights screen.
Yet further, the tuning parameter in the embodiment of the present invention include following at least one:
Gain parameter, digital-to-analogue converter parameter, pixel gain parameter etc..
Refer to the structural representation that Fig. 9, Fig. 9 are another embodiments of the electric terminal that the present invention provides.Wherein, such as figure
Shown in 9, electric terminal 90 may include that at least one processor 901, such as CPU, at least one network interface 904, Yong Hujie
Mouth 903, memorizer 905, at least one communication bus 902 and display screen 906.Wherein, communication bus 902 is used for realizing these
Connection communication between assembly.Wherein, user interface 903 can include finger print acquisition module or fingerprint collecting equipment, keyboard or
Mouse etc..Network interface 904 optionally can include the wireline interface of standard, wave point (such as WI-FI interface).Memorizer
905 can be high-speed RAM memorizer, it is also possible to be non-labile memorizer (non-volatile memory), for example, at least
One disk memory, memorizer 905 includes the flash in the embodiment of the present invention.Memorizer 905 optionally can also is that at least
One storage system being located remotely from aforementioned processor 901.As it is shown in figure 9, as the memorizer of a kind of computer-readable storage medium
Operating system, network communication module, Subscriber Interface Module SIM and unlocking screen program can be included in 905.
Processor 901 may be used for calling the unlocking screen program of storage in memorizer 905, and performs following operation:
When getting fingerprint image by the finger print acquisition module in user interface 903, determine the current of electric terminal
Geographical position, the multiple geographic location area according to dividing in advance judge the target geographic position that described current geographic position falls into
Region；
Using tuning parameter the highest for use frequency in the described target geographic position region of record as initial tuning parameter
And carry out the automatic adjustment of tuning parameter, to obtain the tuning parameter after some adjustment, and use the debugging ginseng after every time adjusting
Several debug currently gathering the image got；
Target image is chosen from the image after each debugging；
Identify whether described target image meets unlocking condition, and when identification meets, the screen of electric terminal is solved
Lock.
Specifically, processor 901 will use the tuning parameter that frequency is the highest in the described target geographic position region of record
Carry out the adjustment automatically of tuning parameter as initial tuning parameter before, it is also possible to perform:
According to record upper n times choose gather image time use tuning parameter, and divide in advance the plurality ofly
The reason band of position, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N is positive integer.
Specifically, processor 901 chooses target image from the image after each debugging, including:
The signal noise ratio (snr) of image of the image after relatively each time debugging；
The image choosing signal noise ratio (snr) of image maximum is target image.
Specifically, electric terminal 90 can be provided with dome keys, and user presses described dome keys by finger and triggers screen
Curtain unlocks；When electric terminal 90 is in and puts out screen screen lock state, processor 901 also performs:
Before receiving the operational order pressing described dome keys, detect that finger touches by described dome keys
Time, trigger and getting, described in performing, the step that fingerprint image determines the current geographic position of electric terminal.
Specifically, processor 901 identifies whether described target image meets unlocking condition, and when identification meets to electronics
The screen of terminal is unlocked, including:
Identify described target image with preset for unlocking whether the image of authentication mates；
Work as identification and matching, and after receiving the operational order pressing described dome keys, the screen of electric terminal is entered
Row unlocks and lights screen.
It should be noted that electric terminal 40 or electric terminal 90 in the embodiment of the present invention include but not limited to mobile electricity
Words, removable computer, panel computer, personal digital assistant (Personal Digital Assistant, PDA), media player,
The subscriber equipmenies such as intelligent television, intelligent watch, intelligent glasses, Intelligent bracelet.
It should be noted that the function of electric terminal 40 in the embodiment of the present invention or each functional module of electric terminal 90 can
Implementing according to the method in said method embodiment, it implements process and is referred to the relevant of said method embodiment
Describing, here is omitted.
For the ease of preferably implementing the such scheme of the embodiment of the present invention, the present invention also correspondence provides a kind of image and adopts
Acquisition means, the structural representation of the image collecting device that the embodiment of the present invention as shown in Figure 10 provides, image collecting device 10
Can include that the second statistical module 100, second gathers and determine that module the 102, second judge module 104, second adjusts debugging module
106 and second choose module 108, wherein,
The tuning parameter used when second statistical module 100 is for choosing gather image according to the upper n times of record, and in advance
First divide adopts multiple geographic location area, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Institute
Stating N is positive integer；
Second collection determines that module 102 is for determining image collecting device when getting fingerprint image by acquisition module
Current geographic position；
Second judge module 104 is for judging described current geographic position according to the multiple geographic location area divided in advance
The target geographic position region fallen into；
Second adjusts debugging module 106 for using the tune that frequency is the highest in the described target geographic position region of record
Examination parameter carries out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and
The tuning parameter adjust every time after is used to debug currently gathering the image got；
Second chooses module 108 for choosing target image from the image after each debugging.
Specifically, second chooses module 108 may include that the second comparing unit and second chooses elementary area, wherein,
The signal noise ratio (snr) of image of second comparing unit image after relatively each time debugging；
Second to choose elementary area for the image choosing signal noise ratio (snr) of image maximum be target image.
It should be noted that the function of each functional module of image collecting device 10 in the embodiment of the present invention can be according to above-mentioned
Method in embodiment of the method implements, and it implements process and is referred to the associated description of said method embodiment, this
Place repeats no more.
In sum, the tuning parameter used during by choosing gather image according to the upper n times of record, and divide in advance
Adopt multiple geographic location area, count and each geographic location area use the highest tuning parameter of frequency, from current position
The target geographic position region that reason position falls into use the tuning parameter that frequency is the highest proceed by the automatic tune of tuning parameter
Whole, and use the tuning parameter adjust every time after to debug currently gathering the image got, and after debugging for each time
Image is chosen target image, when identifying this target image and meeting unlocking condition, the screen of electric terminal is unlocked,
Achieve only need to tuning parameter be adjusted several times and can complete to adopt figure, the number of times that tuning parameter adjusts can be greatly saved, solve
Prior art of having determined generally requires by tens adjustment to tuning parameter the most hundreds of time cause to adopt the figure time longer
Problem, greatly reduce and adopt the figure time, it is possible to combine the weather attribute in each geographical position, further increase adopt figure effect
Rate, it is achieved thereby that improve unlocking screen speed further, decreases the unlocking screen time, meets user security and enter rapidly
The demand of row unlocking screen, improves user and unlocks experience.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible
Instructing relevant hardware by computer program to complete, described program can be stored in a computer read/write memory medium
In, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access
Memory, RAM) etc..
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the power of the present invention with this
Profit scope, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and weighs according to the present invention
Profit requires the equivalent variations made, and still falls within the scope that invention is contained.
Claims (15)
1. the unlocking screen method of an electric terminal, it is characterised in that including:
The current geographic position of electric terminal is determined when getting fingerprint image；
The target geographic position region that described current geographic position falls into is judged according to the multiple geographic location area divided in advance；
Enter the described target geographic position region of record uses the tuning parameter that frequency is the highest as initial tuning parameter
The automatic adjustment of row tuning parameter, to obtain the tuning parameter after some adjustment, and uses the tuning parameter pair after every time adjusting
Currently gather the image got to debug；
Target image is chosen from the image after each debugging；
Identify whether described target image meets unlocking condition, and when identification meets, the screen of electric terminal is unlocked.
2. the method for claim 1, it is characterised in that use in the described described target geographic position region that will record
Before the tuning parameter that frequency is the highest carries out the adjustment automatically of tuning parameter as initial tuning parameter, also include:
Upper n times according to record choose the tuning parameter used when gathering image, and the plurality of geographical position divided in advance
Put region, count and each geographic location area uses the tuning parameter that frequency is the highest；Described N is positive integer.
3. the method for claim 1, it is characterised in that described from each time debugging after image choose target image,
Including:
The signal noise ratio (snr) of image of the image after relatively each time debugging；
The image choosing signal noise ratio (snr) of image maximum is target image.
4. the method for claim 1, it is characterised in that described electric terminal is provided with dome keys, user passes through finger
Press described dome keys and trigger unlocking screen；When described electric terminal is in and puts out screen screen lock state, described method also includes:
Before receiving the operational order pressing described dome keys, when detecting that finger touches by described dome keys, touch
Send out and getting, described in performing, the step that fingerprint image determines the current geographic position of electric terminal.
5. method as claimed in claim 3, it is characterised in that whether the described target image of described identification meets unlocking condition,
And when identification meets, the screen of electric terminal is unlocked, including:
Identify described target image with preset for unlocking whether the image of authentication mates；
Work as identification and matching, and after receiving the operational order pressing described dome keys, the screen of electric terminal is solved
Lock and light screen.
6. an image-pickup method, it is characterised in that including:
According to record upper n times choose gather image time use tuning parameter, and divide in advance adopt multiple geographical position
Region, counts and uses the tuning parameter that frequency is the highest in each geographic location area；Described N is positive integer；
The current geographic position of electric terminal is determined when getting fingerprint image by acquisition module；Many according to dividing in advance
Individual geographic location area judges the target geographic position region that described current geographic position falls into；
Enter the described target geographic position region of record uses the tuning parameter that frequency is the highest as initial tuning parameter
The automatic adjustment of row tuning parameter, to obtain the tuning parameter after some adjustment, and uses the tuning parameter pair after every time adjusting
Currently gather the image got to debug；
Target image is chosen from the image after each debugging.
7. method as claimed in claim 6, it is characterised in that choose target image described image after debugging for each time,
Including:
The signal noise ratio (snr) of image of the image after relatively each time debugging；
The image choosing signal noise ratio (snr) of image maximum is target image.
8. an electric terminal, it is characterised in that including:
First collection determines module, for determining the current geographic position of electric terminal when getting fingerprint image；
First judge module, for judging what described current geographic position fell into according to the multiple geographic location area divided in advance
Target geographic position region；
First adjusts debugging module, for using the tuning parameter that frequency is the highest in the described target geographic position region of record
Carry out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and use every
Tuning parameter after secondary adjustment is debugged currently gathering the image got；
First chooses module, for choosing target image from the image after each debugging；
Identify unlocked state, be used for identifying whether described target image meets unlocking condition, and whole to electronics when identification meets
The screen of end is unlocked.
9. electric terminal as claimed in claim 8, it is characterised in that also include:
First statistical module, will use in the described target geographic position region of record for adjusting debugging module described first
Before the tuning parameter that frequency is the highest carries out the adjustment automatically of tuning parameter as initial tuning parameter, according to the upper N of record
The secondary tuning parameter used when gathering image of choosing, and the plurality of geographic location area divided in advance, count each
Geographic location area uses the tuning parameter that frequency is the highest；Described N is positive integer.
10. electric terminal as claimed in claim 8, it is characterised in that described first chooses module includes:
First comparing unit, the signal noise ratio (snr) of image of the image after relatively each time debugging；
First chooses elementary area, is target image for the image choosing signal noise ratio (snr) of image maximum.
11. electric terminals as claimed in claim 8, it is characterised in that described electric terminal is provided with dome keys, and user passes through
Finger presses described dome keys and triggers unlocking screen；When described electric terminal is in and puts out screen screen lock state, described electronics is eventually
End also includes:
Trigger module, for before receiving the operational order pressing described dome keys, is detected by described dome keys
When finger touches, trigger described first collection of execution and determine that module performs to determine working as of electric terminal when getting fingerprint image
The step in front geographical position.
12. electric terminals as claimed in claim 11, it is characterised in that described identification unlocked state includes:
Identification and matching unit, for identify described target image with default for unlocking whether the image of authentication mates；
Unlock bright screen unit, be used for when described identification and matching unit identification and matching, and press described dome keys receiving
After operational order, the screen of electric terminal is unlocked and lights screen.
13. 1 kinds of image collecting devices, it is characterised in that including:
Second statistical module, the tuning parameter used during for choosing gather image according to the upper n times of record, and divide in advance
Adopt multiple geographic location area, count and each geographic location area use the highest tuning parameter of frequency；Described N is just
Integer；
Second collection determines module, for determining the current of image collecting device when getting fingerprint image by acquisition module
Geographical position；
Second judge module, for judging what described current geographic position fell into according to the multiple geographic location area divided in advance
Target geographic position region；
Second adjusts debugging module, for using the tuning parameter that frequency is the highest in the described target geographic position region of record
Carry out the automatic adjustment of tuning parameter as initial tuning parameter, to obtain the tuning parameter after some adjustment, and use every
Tuning parameter after secondary adjustment is debugged currently gathering the image got；
Second chooses module, for choosing target image from the image after each debugging.
14. devices as claimed in claim 13, it is characterised in that described second chooses module includes:
Second comparing unit, the signal noise ratio (snr) of image of the image after relatively each time debugging；
Second chooses elementary area, is target image for the image choosing signal noise ratio (snr) of image maximum.
15. 1 kinds of electric terminals, it is characterised in that including: processor, memorizer and fingerprint collecting equipment；Wherein, described finger
Stricture of vagina collecting device is used for gathering fingerprint image；Described processor is used for the method performed described in any one of claim 1-5, or
Perform the method described in claim 6 or 7.
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