CN106022048A - Screen unlocking method for electronic terminal, image acquisition method and device - Google Patents

Screen unlocking method for electronic terminal, image acquisition method and device Download PDF

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Publication number
CN106022048A
CN106022048A CN201610352153.1A CN201610352153A CN106022048A CN 106022048 A CN106022048 A CN 106022048A CN 201610352153 A CN201610352153 A CN 201610352153A CN 106022048 A CN106022048 A CN 106022048A
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China
Prior art keywords
image
tuning parameter
screen
target
debugging
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CN201610352153.1A
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CN106022048B (en
Inventor
张海平
周意保
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12Fingerprints or palmprints
    • G06V40/13Sensors therefor

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Lock And Its Accessories (AREA)
  • Collating Specific Patterns (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The embodiment of the invention discloses a screen unlocking method for an electronic terminal. The method comprises following steps: acquiring and obtaining images at current moment and determining a target acquisition time slot falling at current moment according to the pre-partitioned acquisition period, wherein the acquisition period comprises multiple acquisition time slots; starting with most-frequently-used debug parameters to automatically adjust debug parameters from the recorded target acquisition time slot and utilizing debug parameters adjusted each time to debug images acquired currently; selecting target images from debugged images each time; and recognizing whether target images satisfy the unlocking method and unlocking a screen of the electronic terminal when recognition is satisfied. Correspondingly, the invention further discloses an image acquisition method, the electronic terminal and an image acquisition device. Therefore, images can be acquired by adjusting debug parameters several times. Images can be acquired within short time by avoiding adjustments of debug parameters for dozens of time and even hundreds of time. Image acquisition efficiency is improved.

Description

Unlocking screen method, image-pickup method and the device of a kind of electric terminal
Technical field
The present invention relates to computer realm, particularly relate to a kind of unlocking screen method of electric terminal, image is adopted Diversity 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 installs various client production on mobile terminals according to the demand of self, just can much be seeked advice from Information, it might even be possible to complete a lot of thing, life and the amusement of people are more and more too busy to get away home-confinedly Electric terminal.
Currently, fingerprint identification technology has become as the standard configuration of main flow mobile terminal manufacturer flagship type, and fingerprint is known Not can be not only 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 equipment reads the image of somatic fingerprint, after getting fingerprint image, will carry out original image tentatively Process, be allowed to apparent, then carry out Feature Points Matching with registered fingerprint template.After the match is successful, System unlocks, and unlocks this time to system be referred to as unlocked time from reading fingerprint.
The speed of unlocked time has become as the bright spot of a product competition of Ge great producer, how to improve unblock Speed, reduces unlocked time, is 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 the unlocking screen side of a kind of electric terminal Method, image-pickup method, electric terminal and image collecting device, can further improve unblock speed, reduces Unlocked time, meets user security and is quickly carried out the demand of unlocking screen.
In order to solve above-mentioned technical problem, embodiment of the present invention first aspect discloses the screen of a kind of electric terminal Curtain unlocking method, including:
In current time collection and get image, according to the collection period divided in advance judge described current time Carve the target acquisition time section fallen into;Described collection period includes multiple acquisition time section;
The tuning parameter that frequency is the highest is used to proceed by debugging ginseng from the described target acquisition time section of record The automatic adjustment of number, and use the tuning parameter after every time adjusting to adjust currently gathering the image got Examination;
Target image is chosen from the image after each debugging;
Identify whether described target image meets unlocking condition, and when identify meet time screen to electric terminal It is unlocked.
In conjunction with first aspect, in the implementation that the first is possible, described from the image after each debugging Choose target image, including:
The described tuning parameter that use frequency is the highest from the described target acquisition time section of record proceeds by tune Automatically, before the adjustment of examination parameter, also include:
According to record upper n times choose gather image time use tuning parameter, and divide in advance described Collection period, counts and uses the tuning parameter that frequency is the highest in each acquisition time section;Described N is the most whole Number.
In conjunction with first aspect, in the implementation that the second is possible, described from the image after each debugging 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.
In conjunction with first aspect, in the implementation that the third is possible, described electric terminal is provided with dome keys, User presses described dome keys by finger and triggers unlocking screen;Screen screen locking is put out when described electric terminal is in During state, described method also includes:
Before receiving the operational order pressing described dome keys, in one's hands by the detection of described dome keys When referring to touch, trigger perform described in current time collection and the step that gets image.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, institute State whether the described target image of identification meets unlocking condition, and when identification meets, the screen of electric terminal is entered Row unlocks, 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, to electric terminal Screen is unlocked and lights screen.
Embodiment of the present invention second aspect discloses a kind of image-pickup method, including:
Upper n times according to record choose the tuning parameter used when gathering image, and the collection divided in advance In the cycle, count and each acquisition time section uses the tuning parameter that frequency is the highest;Described N is positive integer; Described collection period includes multiple acquisition time section;
Image is gathered at current time by acquisition module;Described working as is judged according to the collection period divided in advance The target acquisition time section that the front moment falls into;
The tuning parameter that frequency is the highest is used to proceed by debugging ginseng from the described target acquisition time section of record The automatic adjustment of number, and use the tuning parameter after every time adjusting to adjust currently gathering the image got Examination;
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 the image after each debugging 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.
The embodiment of the present invention third aspect discloses a kind of electric terminal, including:
First gathers judge module, is used in current time collection and gets image, according to divide in advance Collection period judges the target acquisition time section that described current time falls into;Described collection period includes multiple adopting The collection time period;
First adjusts debugging module, uses frequency the highest for the described target acquisition time section from record Tuning parameter proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to currently Gather the image got to debug;
First chooses module, for choosing target image from the image after each debugging;
Identify unlocked state, identify whether described target image meets unlocking condition, and when identification meets pair The screen of electric 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 the debugging module described target acquisition time from record described first Before using the tuning parameter that frequency is the highest to proceed by the adjustment automatically of tuning parameter in Duan, according to record Upper n times choose the tuning parameter used when gathering image, and the described collection period divided in advance, statistics Go out and each acquisition time section 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, User presses described dome keys by finger and triggers unlocking screen;Screen screen locking is put out when described electric terminal is in During state, described electric terminal also includes:
Trigger module, for before receiving the operational order pressing described dome keys, by described dome Button detects when finger touches, and triggers described first collection judge module and performs in current time collection and obtain Get image, judge, according to the collection period divided in advance, the target acquisition time section that described current time falls into Step.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, institute State identification unlocked state to include:
Identification and matching unit, for identify described target image and preset the image for unlocking authentication whether Coupling;
Unlock bright screen unit, for when described identification and matching unit identification and matching and described receiving pressing After the operational order of dome keys, 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 the collection period divided in advance, count and each acquisition time section uses the tuning parameter that frequency is the highest; Described N is positive integer;Described collection period includes multiple acquisition time section;
Second gathers judge module, for gathering image at current time, according to the collection period divided in advance Judge the target acquisition time section that described current time falls into;
Second adjusts debugging module, uses frequency the highest for the described target acquisition time section from record Tuning parameter proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to currently Gather the image got to debug;
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, described computer-readable storage medium Having program stored therein, described program includes the embodiment of the present invention first aspect when performing, or the of first aspect A kind of possible implementation, or the implementation that the second of first aspect is possible, or first aspect The third possible implementation, or the electricity disclosed in the 4th kind of possible implementation of first aspect The step of the unlocking screen method of sub-terminal.
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 Hold embodiment of the present invention first aspect, or the first possible implementation of first aspect, or first The implementation that the second of aspect is possible, or the third possible implementation of first aspect, or The unlocking screen method of the electric terminal disclosed in the 4th kind of possible implementation of first aspect, or hold Row embodiment of the present invention second aspect, or the figure disclosed in the first possible implementation of second aspect As acquisition method.
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 divide in advance Collection period, counts and uses the tuning parameter that frequency is the highest in each acquisition time section, fall from current time The target acquisition time section entered use the tuning parameter that frequency is the highest proceed by the automatic adjustment of tuning parameter, And use the tuning parameter adjust every time after to debug currently gathering the image got, and from each tune Image after examination chooses target image, identifying when this target image meets unlocking condition electric terminal Screen be unlocked, it is achieved that only tuning parameter need to be adjusted several times and can complete to adopt figure, can be significantly Save the number of times that tuning parameter adjusts, solve and prior art generally requires 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, it is possible to In conjunction with the fingerprint input habit of each time period, further increase and adopt figure efficiency, it is achieved thereby that further Improve unlocking screen speed, decrease the unlocking screen time, meet user security and be quickly carried out screen solution The demand of lock, improves user and unlocks 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 enforcement In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying On the premise of going out creative work, it is also possible to obtain other accompanying drawing 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 clearly Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation The every other embodiment obtained under property work premise, 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 describing specific embodiment Purpose, and be not intended to be limiting the present invention.Used in the embodiment of the present invention and appended claims " a kind of ", " described " and " being somebody's turn to do " of singulative is also intended to include most form, unless context understands Ground represents other implications.It is also understood that term "and/or" used herein refer to and comprise one or Any or all of multiple projects of listing being associated may combination.
The embodiment of the invention discloses a kind of unlocking screen method of electric terminal, it is achieved that quick screen unlocks. It is described in detail in conjunction with accompanying drawing.
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: in current time collection and get image, judges according to the collection period divided in advance The target acquisition time section that described current time falls into;
Specifically, electric terminal can pass through acquisition module, such as fingerprint sensor etc., gathers user's input Fingerprint image;The electric terminal of the embodiment of the present invention can pre-set or divide collection period, and this is adopted The collection cycle can include multiple acquisition time section;This collection period can be 1 month, 1 week, 1 day, 12 Hour, 8 hours etc., as a example by one day, can include that multiple acquisition time section, such as morning 0 arrive 6 be a time period, 6 o'clock to 12 o'clock are a time period, 12 o'clock to 18 o'clock are a time period, 18 O'clock being time period etc. by 24 o'clock, the size of each acquisition time section can identical can also differ. The present invention does not limit the division of acquisition time section in the cycle size of collection period and collection period.
Step S102: from the beginning of using, from the described target acquisition time section of record, the tuning parameter that frequency is the highest Carry out the automatic of tuning parameter to adjust, and use the tuning parameter after every time adjusting that current collection is got Image is debugged;
Specifically, when electric terminal is by acquisition module, when collecting the fingerprint image of user's input, need Repeatedly adjusting 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 entered Row processes, thus obtains some and gather image, and finally chooses the best image of definition as follow-up The image being identified.
It should be noted that before step S102, the unlocking screen method of the electric terminal of the embodiment of the present invention After collecting image every time and finally have chosen the image that definition is best, can record and gather every time Time point process and obtain the corresponding tuning parameter used of the best image of this definition, then when performing step Before rapid S102, the tuning parameter used when can choose collection image according to the upper n times of record, and in advance This collection period first divided, counts and uses the tuning parameter that frequency is the highest in each acquisition time section;This N For positive integer.Specifically, the time point every time gathered is included into the acquisition time section of correspondence, then adds up The tuning parameter that in each acquisition time section, access times are most, the tuning parameter that these access times are most To think 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, as Element gain pixel gain parameter, etc. parameter.
The most specifically, step S102 is using the highest tuning parameter of this use frequency as benchmark, from this use frequency The tuning parameter that rate is the highest proceeds by adjustment automatically, and automatically adjusting in the embodiment of the present invention can be with millisecond Rank is automatically adjusted, and uses the tuning parameter after every time adjusting to currently gathering the image got Debug, obtain the image after each debugging.
Step S104: choose target image from the image after each debugging;
Specifically, the highest image of definition can be chosen as target image, carry out image knowledge for follow-up Do not unlock.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 maximum image of the signal noise ratio (snr) of image image that to be definition the highest, best, thus choose signal noise ratio (snr) of image Big image is used as target image.
Step S106: identify whether described target image meets unlocking condition, and when identification meets to electronics The screen of terminal is unlocked.
Specifically, electric terminal can pre-set unlocking condition, such as target image will be used for unlocking mirror The images match of power, target image have certain characteristic information default etc., meet when identifying this target image During the unlocking condition preset, 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 not For same user's finger (dry and wet finger is had any different), the parameter of CAC is Protean, but for An independent electric terminal and an independent user, the service condition of the most daily middle domestic consumer.Because fingerprint Acquisition module performance determines dispatching from the factory when, and the finger of user is also fixing.Therefore, entering Before the trade during this collection image, the debugging used during by choosing gather image according to the upper n times of record Parameter, and the collection period divided in advance, count and use the tune that frequency is the highest in each acquisition time section Examination parameter, use from the target acquisition time section that current time falls into the highest tuning parameter of frequency start into The automatic adjustment of row tuning parameter, and use the tuning parameter after every time adjusting to currently gathering the figure got As debugging, and choose target image from the image after each debugging, full identifying this target image During foot unlocking condition, the screen to electric terminal is unlocked, it is achieved that only need to adjust tuning parameter several times Whole can completing adopts figure, can be greatly saved the number of times that tuning parameter adjusts, solve in prior art and often need Will be by tens figure time of adopting that the adjustment of tuning parameter is caused the most hundreds of time longer problem, significantly Reduce and adopt the figure time, it is possible to combine the fingerprint input habit of each time period, further increase and adopt figure Efficiency, it is achieved thereby that improve unlocking screen speed further, decreases the unlocking screen time, meets use Family carries out the demand of unlocking screen safely and fast, improves user and unlocks experience.
Further, illustrate as a example by electric terminal is as mobile terminal below, the screen solution of mobile terminal Lock can be divided three classes, and unlocks including bright screen, puts out screen unblock and put out screen being unlocked by pressing.Wherein, this put out screen by Pressure unlocks that is this mobile terminal and is provided with dome keys, and user presses this dome keys just by finger Trigger unlocking screen.For a user, unlocking for bright screen, the time experiencing unlocking screen is to touch from hands Touch fingerprint to start to last display to unlock the time that interface is experienced;Unlock for putting out screen, experience unlocking screen Time be to touch fingerprint from hands start to last bright screen and show and unlock time of being experienced of interface;And for Putting out screen being unlocked by pressing, the time experiencing unlocking screen is to last bright screen and to show solution from hands pressing dome keys The time that lock 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, Ke Yishi One block of poly terephthalic acid class plastics comprising metal clips (metal dome) (Polyethylene terephthalate, PET) thin slice, be used in printed circuit board (Printed Circuit Board, PCB) or flexible PCB (Flexible Printed Circuit board, FPC) etc. use as switch on wiring board, rise between user and instrument Effect to an important sense of touch type switch;It will be appreciated that the dome keys in the embodiment of the present invention can To gather the fingerprint image of user, this dome keys can be arranged on the front of electric terminal, the back side or side Deng position, according to technical staff or developer, the position of this dome keys can be set according to self-demand, The embodiment of the present invention is not restricted.
Below for putting out screen being unlocked by pressing, the electric terminal provided in conjunction with the embodiment of the present invention shown in Fig. 2 Unlocking screen principle schematic flow diagram, then describe the unlocking screen method that the embodiment of the present invention provides in detail:
Electric terminal is before the operational order pressing described dome keys receiving user's input, i.e. by being somebody's turn to do Dome keys detects that the finger of user touches, i.e. interrupt requests (Interrupt Request, IRQ) produces Interrupt, then i.e. can trigger execution and in current time collection and get image, according to adopting of dividing in advance The collection cycle judges the step of the target acquisition time section that described current time falls into;This step concrete is referred to The description of above-mentioned steps S100, repeats no more here.Then, make from this target acquisition time section of record Proceed by the automatic adjustment of tuning parameter with the tuning parameter that frequency is the highest, and use the tune after every time adjusting Examination parameter is debugged currently gathering the image got, and can pass through the figure after com-parison and analysis is debugged for each time The signal noise ratio (snr) of image of picture, it is believed that the maximum image of the signal noise ratio (snr) of image image that to be definition the highest, best, 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;When identification Join, and after receiving the operational order pressing described dome keys, the screen of electric terminal is unlocked And light screen.
It will be appreciated that the electric terminal of the embodiment of the present invention receive user input the described dome of pressing by The operational order of key, i.e. user press the step of dome keys, i.e. can touch fingerprint user by finger Afterwards, before fingerprint module gathers fingerprint image;Or can also gather after fingerprint image at fingerprint module, Before completing image recognition coupling;Or can also be 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, The information of recognition failures can also be exported to user.
By the embodiment of the present invention, not only can solve in prior art and generally require by tens times even The problem that hundreds of secondary figure time of adopting causing the adjustment of tuning parameter is longer, greatly reduces and adopts the figure time, Improve and adopt figure efficiency, and when user press dome keys less fast in the case of (such as complete figure As, after identification and matching, having unlocked and pressed dome keys before), moment solution can be experienced further The sensation of lock bright screen.
Yet further, the embodiment of the present invention additionally provides a kind of image-pickup method, the most originally The schematic flow sheet of the image-pickup method that invention provides, including:
Step S300: the tuning parameter used when choosing collection image according to the upper n times of record, and in advance The collection period divided, counts and uses the tuning parameter that frequency is the highest in each acquisition time section;
Specifically, this N is positive integer;This collection period includes multiple acquisition time section;
Step S302: gather image at current time by acquisition module;According to the collection period divided in advance Judge the target acquisition time section that described current time falls into;
Step S304: from the beginning of using, from the described target acquisition time section of record, the tuning parameter that frequency is the highest Carry out the automatic of tuning parameter to adjust, and use the tuning parameter after every time adjusting that current collection is got Image is debugged;
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 signal noise ratio (snr) of image maximum Image be target image.
It should be noted that the image-pickup method that describes of Fig. 3 embodiment can with specific reference to above-mentioned Fig. 1 and About how completing the step of image acquisition in Fig. 2 embodiment, 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 and prior art generally requires by adopting that tens the most hundreds of adjustment to tuning parameter cause The problem that the figure time is longer, greatly reduces and adopts the figure time, improves and adopts figure efficiency.
Also, it should be noted in step S100 of the embodiment of the present invention or S302, if current acquired image Moment record in there is no record, the target acquisition time section that i.e. current time falls into did not recorded to choose adopts Collection image time use tuning parameter time, can directly according to record this on n times choose gather image time make Tuning parameter, choose from whole periods and use the highest tuning parameter of frequency to proceed by tuning parameter Automatic adjustment, and use the tuning parameter after every time adjusting to debug 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 one Electric terminal, the structural representation of the electric terminal that the embodiment of the present invention as shown in Figure 4 provides, electronics is eventually End 40 can include that the first collection judge module 400, first adjusts debugging module 402, first chooses module 404 and identify unlocked state 406, wherein
First gathers judge module 400 is used in current time collection and gets image, according to dividing in advance Collection period judge the target acquisition time section that described current time falls into;Described collection period includes multiple Acquisition time section;
First adjusts debugging module 402 uses frequency the highest for the described target acquisition time section from record Tuning parameter proceed by the automatic adjustment of tuning parameter, and use the tuning parameter after every time adjusting to working as The image that front collection gets is debugged;
First chooses module 404 for choosing target image from the image after each debugging;
Identify that unlocked state 406 is used for identifying whether described target image meets unlocking condition, and full when identifying During foot, the screen to 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, Electric terminal 40 includes that the first collection judge module 400, first adjusts debugging module 402, first chooses mould Outside block 404 and identification unlocked state 406, it is also possible to include the first statistical module 408, for adjusting first Debugging module 402 use from the described target acquisition time section of record the highest tuning parameter of frequency start into Automatically, before the adjustment of row tuning parameter, the debugging ginseng used when gathering image is chosen according to the upper n times of record Number, and the described collection period divided in advance, count and use frequency the highest in each acquisition time section Tuning parameter;Described N is positive integer.
Further, the first of the embodiment of the present invention as shown in Figure 6 offer chooses the structural representation of module, First chooses module 404 may include that the first comparing unit 4040 and first chooses elementary area 4042, its In,
The signal noise ratio (snr) of image of first comparing unit 4040 image after relatively each time debugging;
First to choose elementary area 4042 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 by finger Button triggers unlocking screen;When electric terminal 40 is in and puts out screen screen lock state, the present invention as shown in Figure 7 The structural representation of another embodiment of the electric terminal provided, electric terminal 40 include the first statistical module 400, First adjust debugging module 402, first choose module 404, identify unlocked state 406 and the first statistical module Outside 408, it is also possible to include trigger module 4010, for referring to receiving the operation pressing described dome keys Before order, when detecting that finger touches by described dome keys, trigger the first collection and judge that 400 modules perform In current time collection and get image, judge that described current time falls according to the collection period divided in advance The step of the target acquisition time section entered.
Yet further, the structural representation identifying unlocked state that the embodiment of the present invention as shown in Figure 8 provides Figure, identifies that unlocked state 406 may include that identification and matching unit 4060 and unlocks bright screen unit 4062, its In,
Identification and matching unit 4060 is for identifying that described target image with default for unlocking the image of authentication is No coupling;
Unlock bright screen unit 4062 to be used for when identification and matching unit 4060 identification and matching, and receive pressing After the operational order of described dome keys, 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.Its In, as it is shown in figure 9, electric terminal 90 may include that at least one processor 901, such as CPU, extremely A few network interface 904, user interface 903, memorizer 905, at least one communication bus 902 and Display screen 906.Wherein, communication bus 902 is for realizing the connection communication between these assemblies.Wherein, use Family interface 903 can include finger print acquisition module or fingerprint collecting equipment, keyboard or mouse etc..Network connects Mouth 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 is located remotely from the storage system of aforementioned processor 901.As it is shown in figure 9, As the memorizer 905 of a kind of computer-readable storage medium can include operating system, network communication module, Subscriber Interface Module SIM and unlocking screen program.
Processor 901 may be used for calling below the unlocking screen program stored in memorizer 905, and execution Operation:
By the finger print acquisition module collection in user interface 903 and image is got at current time, according to The collection period divided in advance judges the target acquisition time section that described current time falls into;Described collection period Including multiple acquisition time sections;
The tuning parameter that frequency is the highest is used to proceed by debugging ginseng from the described target acquisition time section of record The automatic adjustment of number, and use the tuning parameter after every time adjusting to adjust currently gathering the image got Examination;
Target image is chosen from the image after each debugging;
Identify whether described target image meets unlocking condition, and when identify meet time screen to electric terminal 80 Curtain is unlocked.
Specifically, processor 901 uses the debugging that frequency is the highest from the described target acquisition time section of record Before parameter proceeds by the adjustment automatically of tuning parameter, it is also possible to perform:
According to record upper n times choose gather image time use tuning parameter, and divide in advance described Collection period, counts and uses the tuning parameter that frequency is the highest in each acquisition time section;Described N is the most whole Number.
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 by finger Button triggers unlocking screen;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, in one's hands by the detection of described dome keys When referring to touch, trigger and perform in current time collection the step that gets image.
Specifically, processor 901 identifies whether described target image meets unlocking condition, and meets when identifying Time 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, to electric terminal The screen of 90 is unlocked and lights screen.
It should be noted that electric terminal 40 in the embodiment of the present invention or electric terminal 90 include but do not limit In mobile phone, removable computer, panel computer, personal digital assistant (Personal Digital Assistant, PDA), The subscriber equipmenies such as media player, intelligent television, intelligent watch, intelligent glasses, Intelligent bracelet.
It should be noted that the electric terminal 40 in the embodiment of the present invention or each functional module of electric terminal 90 Function can implement according to the method in said method embodiment, it implements process and is referred to Stating the associated description of embodiment of the method, 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 one Image collecting device, 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 judge module 102, second and adjusts Whole debugging module 104 and second chooses module 106, wherein,
The tuning parameter used when second statistical module 100 is for choosing gather image according to the upper n times of record, And the collection period divided in advance, count and each acquisition time section uses the tuning parameter that frequency is the highest; Described N is positive integer;Described collection period includes multiple acquisition time section;
Second gathers judge module 102 was used for gathering image at current time, according to the collection week divided in advance Phase judges the target acquisition time section that described current time falls into;
Second adjusts debugging module 104 uses frequency the highest for the described target acquisition time section from record Tuning parameter proceed by the automatic adjustment of tuning parameter, and use the tuning parameter after every time adjusting to working as The image that front collection gets is debugged;
Second chooses module 106 for choosing target image from the image after each debugging.
Specifically, second chooses module 106 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 root Implementing according to the method in said method embodiment, it implements process and is referred to said method enforcement The associated description of example, here is omitted.
In sum, the tuning parameter used during by choosing gather image according to the upper n times of record, and The collection period divided in advance, counts and uses the tuning parameter that frequency is the highest in each acquisition time section, from The target acquisition time section that current time falls into use the tuning parameter that frequency is the highest proceed by tuning parameter Automatic adjustment, and use the tuning parameter after every time adjusting to debug currently gathering the image got, And choose target image, when identifying this target image and meeting unlocking condition from the image after each debugging The screen of electric terminal is unlocked, it is achieved that only tuning parameter need to be adjusted several times and can complete to adopt Figure, can be greatly saved the number of times that tuning parameter adjusts, solve and generally require in prior art by tens times The problem that the most hundreds of time figure time of adopting causing the adjustment of tuning parameter is longer, greatly reduces when adopting figure Between, it is possible to combine the fingerprint input habit of each time period, further increase and adopt figure efficiency, thus real Show further raising unlocking screen speed, decreased the unlocking screen time, meet user security rapidly Carry out the demand of unlocking screen, improve user and unlock experience.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating In machine read/write memory medium, 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 disc, CD, read-only store-memory body (Read-Only Memory, Or random store-memory body (Random Access Memory, RAM) etc. ROM).
Above disclosed only one preferred embodiment of the present invention, can not limit this with this certainly Bright interest field, one of ordinary skill in the art will appreciate that all or part of stream realizing above-described embodiment Journey, and according to the equivalent variations that the claims in the present invention are made, still fall within the scope that invention is contained.

Claims (15)

1. the unlocking screen method of an electric terminal, it is characterised in that including:
In current time collection and get image, according to the collection period divided in advance judge described current time Carve the target acquisition time section fallen into;Described collection period includes multiple acquisition time section;
The tuning parameter that frequency is the highest is used to proceed by debugging ginseng from the described target acquisition time section of record The automatic adjustment of number, and use the tuning parameter after every time adjusting to adjust currently gathering the image got Examination;
Target image is chosen from the image after each debugging;
Identify whether described target image meets unlocking condition, and when identify meet time screen to electric terminal It is unlocked.
2. the method for claim 1, it is characterised in that when the described described target from record gathers Between section uses the tuning parameter that frequency is the highest proceed by automatically the adjusting of tuning parameter before, also include:
According to record upper n times choose gather image time use tuning parameter, and divide in advance described Collection period, counts and uses the tuning parameter that frequency is the highest in each acquisition time section;Described N is the most whole Number.
3. the method for claim 1, it is characterised in that described choosing from the image after each debugging Take 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 presses described dome keys by finger and triggers unlocking screen;Screen screen locking is put out when described electric terminal is in During state, described method also includes:
Before receiving the operational order pressing described dome keys, in one's hands by the detection of described dome keys When referring to touch, trigger perform described in current time collection and the step that gets image.
5. method as claimed in claim 4, it is characterised in that the described target image of described identification is the fullest Foot 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, to electric terminal Screen is unlocked and lights screen.
6. an image-pickup method, it is characterised in that including:
Upper n times according to record choose the tuning parameter used when gathering image, and the collection divided in advance In the cycle, count and each acquisition time section uses the tuning parameter that frequency is the highest;Described N is positive integer; Described collection period includes multiple acquisition time section;
Image is gathered at current time by acquisition module;Described working as is judged according to the collection period divided in advance The target acquisition time section that the front moment falls into;
The tuning parameter that frequency is the highest is used to proceed by debugging ginseng from the described target acquisition time section of record The automatic adjustment of number, and use the tuning parameter after every time adjusting to adjust currently gathering the image got Examination;
Target image is chosen from the image after each debugging.
7. method as claimed in claim 6, it is characterised in that described choosing from the image after each debugging Take 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.
8. an electric terminal, it is characterised in that including:
First gathers judge module, is used in current time collection and gets image, according to divide in advance Collection period judges the target acquisition time section that described current time falls into;Described collection period includes multiple adopting The collection time period;
First adjusts debugging module, uses frequency the highest for the described target acquisition time section from record Tuning parameter proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to currently Gather the image got to debug;
First chooses module, for choosing target image from the image after each debugging;
Identify unlocked state, identify whether described target image meets unlocking condition, and when identification meets pair The screen of electric terminal is unlocked.
9. electric terminal as claimed in claim 8, it is characterised in that also include:
First statistical module, for adjusting the debugging module described target acquisition time from record described first Before using the tuning parameter that frequency is the highest to proceed by the adjustment automatically of tuning parameter in Duan, according to record Upper n times choose the tuning parameter used when gathering image, and the described collection period divided in advance, statistics Go out and each acquisition time section 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 Button, user presses described dome keys by finger and triggers unlocking screen;Put out when described electric terminal is in During screen screen lock state, described electric terminal also includes:
Trigger module, for before receiving the operational order pressing described dome keys, by described dome Button detects when finger touches, and triggers described first collection judge module and performs in current time collection and obtain Get image, judge, according to the collection period divided in advance, the target acquisition time section that described current time falls into Step.
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 and preset the image for unlocking authentication whether Coupling;
Unlock bright screen unit, for when described identification and matching unit identification and matching and described receiving pressing After the operational order of dome keys, 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 the collection period divided in advance, count and each acquisition time section uses the tuning parameter that frequency is the highest; Described N is positive integer;Described collection period includes multiple acquisition time section;
Second gathers judge module, for gathering image at current time, according to the collection period divided in advance Judge the target acquisition time section that described current time falls into;
Second adjusts debugging module, uses frequency the highest for the described target acquisition time section from record Tuning parameter proceeds by the automatic adjustment of tuning parameter, and uses the tuning parameter after every time adjusting to currently Gather the image got to debug;
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 set Standby;Wherein, described fingerprint collecting equipment is used for gathering fingerprint image;Described processor is used for performing right to be wanted Seek the method described in any one of 1-5, or perform the method described in claim 6 or 7.
CN201610352153.1A 2016-05-24 2016-05-24 Unlocking screen method, image-pickup method and the device of a kind of electric terminal Expired - Fee Related CN106022048B (en)

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