CN109165487A

CN109165487A - A kind of method, mobile terminal and the computer readable storage medium of face unlock

Info

Publication number: CN109165487A
Application number: CN201810684185.0A
Authority: CN
Inventors: 马亮
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2018-06-28
Filing date: 2018-06-28
Publication date: 2019-01-08
Anticipated expiration: 2038-06-28
Also published as: CN109165487B

Abstract

The present invention provides method, mobile terminal and the computer readable storage mediums of a kind of unlock of face, which comprises obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component；According to initial exposure value corresponding to each camera, automatic exposure convergence is carried out respectively to the multiple camera；When any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains facial image；Face unlock is carried out using the facial image.Technical solution provided by the invention is in more multi-environment lower quickening AE convergence rate, so that reducing the exposure convergent time improves face unlock speed.

Description

A kind of method, mobile terminal and the computer readable storage medium of face unlock

Technical field

The present embodiments relate to field of face identification, and in particular to a kind of method, mobile terminal and the meter of face unlock Calculation machine readable storage medium storing program for executing.

Background technique

Current face unlocking technology is using preposition single camera acquisition human face data and is sent to backstage algorithm progress people Face Data Matching is unlocked.Since mobile phone is in close state and can not perceive current environment brightness after the screen that goes out, so initially The setting of exposure value and current environment light mismatch lead to former frame data overexposures or excessively dark, to can not be used to carry out face Data Matching.When AE (Auto Exposure, automatic exposure) algorithmic statement of mobile phone obtains appropriate brightness to suitable exposure value Photo when need time of several frames.

Therefore, the present invention provides method, mobile terminal and the computer readable storage mediums of a kind of unlock of face to solve Certainly the deficiencies in the prior art.

The description of the above-mentioned discovery procedure to problem, is only used to facilitate the understanding of the technical scheme, and does not represent and holds Recognizing above content is the prior art.

Summary of the invention

In order to solve the above-mentioned technical problem or it at least is partially solved above-mentioned technical problem, the embodiment of the invention provides A kind of method, mobile terminal and the computer readable storage medium of face unlock, can be in more multi-environment lower quickening AE convergence speed Degree, so that reducing the exposure convergent time improves face unlock speed.

The embodiment of the present invention provides a kind of method of face unlock, comprising:

Obtain initial exposure value corresponding to each camera in multiple cameras of image acquisition component；

According to initial exposure value corresponding to each camera, automatic exposure is carried out respectively to the multiple camera Convergence；

When any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains face figure Picture, the facial image are unlocked for face.

Optionally, initial exposure value corresponding to each camera in the multiple cameras for obtaining image acquisition component Before, comprising:

According to the brightness value of varying environment, the initial exposure value is respectively set to the multiple camera.

Optionally, the initial exposure is respectively set to the multiple camera in the brightness value according to varying environment Value, comprising:

According to the brightness value of varying environment, the multiple camera is respectively set different initial exposure values.

Optionally, the initial exposure value according to corresponding to each camera distinguishes the multiple camera Before progress automatic exposure convergence, comprising:

After the starting of described image acquisition component, the multiple camera is opened.

Optionally, the multiple camera is two cameras.

In addition, to achieve the above object, the present invention also proposes a kind of mobile terminal, the mobile terminal include memory and Processor；

The memory is stored with initial automatic exposure convergence computer program, and the processor executes the computer journey Sequence, to perform the steps of

When any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains face figure Picture；

Face unlock is carried out using the facial image.

In addition, to achieve the above object, the present invention also proposes that a kind of computer readable storage medium, the storage medium are deposited Initial automatic exposure convergence computer program is contained, the computer program can be executed by least one processor, to realize such as The step of upper any one the method.

Compared with the immediate prior art, method, mobile terminal and the meter of the face unlock that the embodiment of the present invention proposes Calculation machine readable storage medium storing program for executing exposes each camera according to initial exposure value corresponding to each camera automatically respectively Light convergence carries out face unlock with the camera that most rapid convergence is completed, and reduces exposure convergent time and improves face and unlock Speed.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these Figure obtains other attached drawings.

The hardware configuration signal of Fig. 1 each embodiment one optional mobile terminal to realize the present invention；

Fig. 2 is the communication system schematic diagram of mobile terminal in Fig. 1；

Fig. 3 is a kind of flow chart of the method for face unlock provided in an embodiment of the present invention；

Fig. 4 is a kind of flow chart of the method for face unlock provided by Embodiment 2 of the present invention；

Fig. 5 is a kind of flow chart of the method for face unlock that the embodiment of the present invention three provides；

Fig. 6 is a kind of flow chart of the method for face unlock that the embodiment of the present invention four provides；

Fig. 7 is a kind of structural schematic diagram of the device of face unlock provided in an embodiment of the present invention；

Fig. 8 is the structural schematic diagram for the device that the embodiment of the present invention six provides；

Fig. 9 is the structural schematic diagram for the device that the embodiment of the present invention seven provides；

Figure 10 is the structural schematic diagram for the device that the embodiment of the present invention eight provides；

Figure 11 is the structural schematic diagram for the mobile terminal that another embodiment of the present invention provides.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself There is no specific meanings.Therefore, " module " can be used mixedly with " component ".

Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving Phone, smart phone, laptop, digit broadcasting receiver, PDA (Personal Digital Assistant, a number Word assistant), PAD (Portable Android Device, tablet computer), PMP (Portable Media Player, it is portable Formula multimedia player), the mobile terminal of navigation device etc. and such as number TV, desktop computer etc. it is fixed eventually End.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for mobile purpose Element except, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.

The hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention.

Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190 Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.

Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module 112, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.

Broadcasting reception module 111 receives broadcast singal and/or broadcast from external broadcast management server via broadcast channel Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB) Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111 It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video It broadcasts-holds (DVB-H), the Radio Data System of forward link media (MediaFLO), received terrestrial digital broadcasting integrated service (ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/ Or broadcast related information can store in memory 160 (or other types of storage medium).

Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal And at least one of server and/or receive from it radio signal.Such radio signal may include that voice is logical Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.

The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..

Short range communication module 114 is the module for supporting short range communication.Some examples of short-range communication technology include indigo plant Tooth TM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybee TM etc..

Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module Typical case be GPS (global positioning system).According to current technology, the calculating of location information module 115 is from three or more The range information and correct time information of more satellites and Information application triangulation for calculating, thus according to warp Degree, latitude and highly accurately calculate three-dimensional current location information.Currently, it is used for the method for calculating position and temporal information Three satellites and the error that calculated position and temporal information are corrected by using an other satellite.In addition, position Information module 115 can be by Continuous plus current location information in real time come calculating speed information.

A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of mobile phone Microphone 122, mobile phone 121 is to the static images obtained in video acquisition mode or image capture mode by image capture apparatus Or the image data of video is handled.Treated, and picture frame may be displayed on display unit 151.It is handled through mobile phone 121 Picture frame afterwards can store in memory 160 (or other storage mediums) or be sent out via wireless communication unit 110 It send, two or more mobile phones 121 can be provided according to the construction of mobile terminal.Microphone 122 can telephone calling model, Sound (audio data) is received via microphone 122 in logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122 Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or Person's interference.

The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc. Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.

Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal 100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100 The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include proximity sensor 141.

Interface unit 170 is used as mobile terminal 100 and connect at least one external device (ED).For example, external device (ED) can wrap Include wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage Card port, port, the port audio input/output (I/O), video i/o port, ear for connecting the device with identification module Generator terminal mouth etc..Identification module can be storage for verifying user using the various information of mobile terminal 100 and can wrap Include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc..Know in addition, having The device (hereinafter referred to as " identification device ") of other module can take the form of smart card, and therefore, identification device can be via end Mouth or other attachment devices are connect with mobile terminal 100.Interface unit 170 can be used for receiving the input from external device (ED) (for example, data information, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 Or it can be used for transmitting data between mobile terminal and external device (ED).In addition, when mobile terminal 100 is connect with external base When, interface unit 170 may be used as allowing by its by electric power from pedestal provide to mobile terminal 100 path or can use Make the various command signals for allowing to input from pedestal and passes through its path for being transferred to mobile terminal.The various orders inputted from pedestal Signal or electric power may be used as whether mobile terminal for identification is accurately fitted within the signal on pedestal.

Output unit 150 is configured to provide output signal with vision, audio and/or tactile manner (for example, audio is believed Number, vision signal, alarm signal, vibration signal etc.).Output unit 150 may include display unit 151, audio output mould Block 152, alarm unit 153 etc..

Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure Picture and the UI or GUI of correlation function etc..

Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit 151 may be used as input unit and output device.Display unit 151 may include liquid crystal display (LCD), thin film transistor (TFT) In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch Input pressure and touch input position and touch input area.

Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode, It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160 The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes. Audio output module 152 may include loudspeaker, buzzer etc..

Alarm unit 153 can provide output, and event is notified to mobile terminal 100.Typical event can To include calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm list Member 153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be with the shape of vibration Formula provides output, when receiving calling, message or some other entrance communications (incoming communication), alarm Unit 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153 The output of the generation of notification event can also be provided via display unit 151 or audio output module 152.

Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen Data.

Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection The network storage device of 160 store function cooperates.

The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers The multi-media module 181 of volume data, multi-media module 181 can construct in controller 180, or can be structured as and control Device 180 separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or picture It draws input and is identified as character or image.

Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member Electric power appropriate needed for part and component.

Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180. For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai Implement, software code can store in memory 160 and be executed by controller 180.

So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as folded form, Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.

Mobile terminal 100 as shown in Figure 1 may be constructed such that using via frame or grouping send data it is all if any Line and wireless communication system and satellite-based communication system operate.

Referring now to Fig. 2 description communication system that wherein mobile terminal according to the present invention can operate.

Different air interface and/or physical layer can be used in such communication system.For example, used by communication system Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system System (UMTS) (particularly, long term evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under The description in face is related to cdma communication system, but such introduction is equally applicable to other types of system.

With reference to Fig. 2, cdma wireless communication system may include multiple mobile terminals 100, multiple base stations (BS) 270, base station Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN) 290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link. Back haul link can be constructed according to any in several known interfaces, and the interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system may include multiple BSC275 as shown in Figure 2.

Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of direction specific direction Each subregion of line covering is radially far from BS270.Alternatively, each subregion can be by two or more for diversity reception Antenna covering.Each BS270, which may be constructed such that, supports multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum (for example, 1.25MHz, 5MHz etc.).

What subregion and frequency were distributed, which intersects, can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly indicating single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Alternatively, each subregion of specific BS270 can be claimed For multiple cellular stations.

As shown in Figure 2, broadcast singal is sent to the mobile terminal operated in system by broadcsting transmitter (BT) 295 100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 100 to receive the broadcast sent by BT295 Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.The help of satellite 300 positions multiple mobile terminals At least one of 100.

In Fig. 2, multiple satellites 300 are depicted, it is understood that, it is useful to can use any number of satellite acquisition Location information.Location information module 115 as shown in Figure 1 is generally configured to cooperate with satellite 300 desired to obtain Location information.It substitutes GPS tracking technique or except GPS tracking technique, the position that can track mobile terminal can be used Other technologies.In addition, at least one 300 property of can choose of satellite or extraly processing satellite dmb transmission.

As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminals 100 Signal.Mobile terminal 100 usually participates in call, information receiving and transmitting and other types of communication.Specific BS270 is received each reversed Link signal is handled in specific BS270.The data of acquisition are forwarded to relevant BSC275.BSC275 provides call money The mobile management function of source distribution and the coordination including the soft switching process between BS270.The data that BSC275 will also be received It is routed to MSC280, the additional route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with MSC280 forms interface, and MSC280 and BSC275 form interface, and BSC275 controls BS270 correspondingly to believe forward link Number it is sent to mobile terminal 100.

Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the method for the present invention is proposed.

Embodiment one

A kind of method of face unlock provided by one embodiment of the present invention, as shown in Figure 3, comprising the following steps:

S101 obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component；

S102 carries out the multiple camera certainly respectively according to initial exposure value corresponding to each camera Dynamic exposure convergence；

S103, when any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains people Face image；

S104 carries out face unlock using the facial image.

Multiple cameras can be two cameras in the embodiment of the present invention, that is to say, that restrain in the embodiment of the present invention Mobile terminal of the device especially suitable for dual camera；Certainly with development in science and technology, when there are 3 or 3 or more cameras Mobile phone, the convergence device in the embodiment of the present invention are also suitable.Such as:

In the mobile terminal of dual camera, defining one of camera is main camera, another camera is taken the photograph for pair It is middle according to an embodiment of the present invention to restrain device as head, main camera can be arranged according to the brightness value under bright light environments initial Initial exposure value X2 is arranged to secondary camera according to the brightness value under inclined dark situation in exposure value X1.

At this point, the convergence device in the embodiment of the present invention can be by main camera shooting if user is when bright outdoor is taken pictures Head to be restrained on the basis of initial exposure value X1, secondary camera to be restrained on the basis of initial value exposure value X2, by In X1 it is that the brightness value based on bright light environments is configured, therefore the AE fast convergence rate of main camera；Same principle, if When inclined dark situation is taken pictures, then the AE fast convergence rate of secondary camera, thus in compared with the existing technology by main camera shooting Head is restrained, and convergence rate is effectively increased, and effectively avoids setting due to initial exposure value and current environment brightness value not Matching, caused former frame data overexposures or excessively dark problem, effectively improve user experience.

In some embodiments, first corresponding to each camera in the multiple cameras for obtaining image acquisition component Before beginning exposure value, comprising:

That is, in some embodiments, initial exposure is arranged to each camera according to the brightness value of varying environment Value, so as to so that the AE convergence rate of each camera is different, so as to be restrained relative to the AE of existing single camera, It so that AE convergence is effectively matched the brightness value of current environment, and then effectively improve the convergence rate more imaged.

In some embodiments, the initial exposure value according to corresponding to each camera, takes the photograph to the multiple Before carrying out automatic exposure convergence respectively as head, may include:

That is, in some embodiments can be by opening simultaneously multiple cameras, so as to so that the present invention is real The convergence device applied in example carries out AE convergence to each camera respectively, and then effectively improves the convergence rate of multi-cam.

Embodiment two

A kind of method of face unlock provided by one embodiment of the present invention, as shown in Figure 4, comprising the following steps:

The initial exposure value is respectively set to the multiple camera according to the brightness value of varying environment in S201；

S202 obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component；

S203 carries out the multiple camera certainly respectively according to initial exposure value corresponding to each camera Dynamic exposure convergence；

S204, when any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains people Face image；

S205 carries out face unlock using the facial image.

According to the brightness value of varying environment in the embodiment of the present invention, the initial exposure is respectively set to the multiple camera Light value, so as to so that convergence unit AE convergence can be carried out according to these initial exposure values respectively, and then effectively improve AE receipts Hold back speed.

In some embodiments, the brightness value according to varying environment is respectively set the multiple camera described Initial exposure value may include:

For example, by taking the mobile phone of camera there are two having (including preposition main camera and preposition secondary camera) as an example, this hair The embodiment process of bright embodiment may include:

Step 11, main camera sets initial exposure value as the initial exposure value X1 under indoor dark situation light partially, leads at this time It crosses AE algorithm and carries out AE convergence on the basis of X1.

Step 12, secondary camera sets initial exposure value as the initial exposure value X2 under outdoor light environment light, at this time may be used To carry out AE convergence on the basis of X2 by AE algorithm.

Step 13, if current environment is indoor or outdoors night scene environment, the corresponding initial exposure value of brightness value is attached in X1 Closely, then the AE fast convergence rate of preposition main camera.If opposite current environment is the brightness value pair under outdoor light environment The initial exposure value answered is near X2, then the AE fast convergence rate of preposition pair camera.

Step 14, after the one of convergence of two cameras, the face figure for transmitting appropriate brightness gives rear end face Unlocking algorithm.

Step 15, it obtains facial image and carries out face unlock.

Embodiment three

A kind of method of face unlock provided by one embodiment of the present invention, as shown in Figure 5, comprising the following steps:

S301 opens the multiple camera after the starting of described image acquisition component.

S302 obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component；

S303 carries out the multiple camera certainly respectively according to initial exposure value corresponding to each camera Dynamic exposure convergence；

S304, when any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains people Face image；

S305 carries out face unlock using the facial image.

The embodiment of the present invention is by opening the multiple camera, and obtain figure after the starting of described image acquisition component As acquisition component multiple cameras in initial exposure value corresponding to each camera, while according to each camera institute Corresponding initial exposure value carries out automatic exposure convergence to the multiple camera respectively, to receive in any one camera When holding back completion, the human face region that will identify that is transmitted to processor, obtains facial image, carries out face using the facial image Unlock.

Step 21, after image acquisition component is opened, two cameras are opened simultaneously.

Step 22, main camera sets initial exposure value as the initial exposure value X1 under indoor dark situation light partially, leads at this time It crosses AE algorithm and carries out AE convergence on the basis of X1.

Step 23, secondary camera sets initial exposure value as the initial exposure value X2 under outdoor light environment light, at this time may be used To carry out AE convergence on the basis of X2 by AE algorithm.

Step 24, if current environment is indoor or outdoors night scene environment, the corresponding initial exposure value of brightness value is attached in X1 Closely, then the AE fast convergence rate of preposition main camera.If opposite current environment is the brightness value pair under outdoor light environment The initial exposure value answered is near X2, then the AE fast convergence rate of preposition pair camera.

Step 25, after the one of convergence of two cameras, the face figure for transmitting appropriate brightness gives rear end face Unlocking algorithm.

Step 26, it obtains facial image and carries out face unlock.

Example IV

A kind of method of face unlock provided by one embodiment of the present invention, as shown in Figure 6, comprising the following steps:

S401 opens the multiple camera after the starting of described image acquisition component；

The initial exposure value is respectively set to the multiple camera according to the brightness value of varying environment in S402；

S403 obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component；

S404 carries out the multiple camera certainly respectively according to initial exposure value corresponding to each camera Dynamic exposure convergence；

S405, when any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains people Face image；

S406 carries out face unlock using the facial image.

The embodiment of the present invention is by opening the multiple camera, according to difference after the starting of described image acquisition component The brightness value of environment is respectively set the initial exposure value to the multiple camera, and obtains the multiple of image acquisition component Initial exposure value corresponding to each camera in camera, while the initial exposure according to corresponding to each camera Value, carries out automatic exposure convergence to the multiple camera respectively, to will identify when any one camera restrains completion Human face region out is transmitted to processor, obtains facial image, carries out face unlock using the facial image.

Embodiment five

The embodiment of the present invention provides a kind of device of face unlock, as shown in fig. 7, described device includes:

Acquiring unit 11, initial exposure corresponding to each camera in multiple cameras for obtaining image acquisition component Light value；

Unit 12 is restrained, for the initial exposure value according to corresponding to each camera, to the multiple camera Automatic exposure convergence is carried out respectively；

Processing unit 13, for when any one camera restrains completion, the human face region that will identify that be transmitted to place Device is managed, facial image is obtained；

Unlocking unit 14 carries out face unlock using the facial image.

Wherein, image acquisition component can be the mobile phone in mobile terminal, and the convergence device of the embodiment of the present invention can at this time To be arranged in the terminal.Difference can be set in initial exposure value corresponding to each camera.Convergence unit 12 can be adopted Automatic exposure AE convergence is carried out with AE algorithm.Wherein convergence unit 12 is connect with acquiring unit 11 and processing unit 13 respectively, is located Reason unit 13 is connect with unlocking unit 14.

Each camera is carried out AE convergence by the embodiment of the present invention respectively, can be in more multi-environment lower quickening AE convergence speed Degree, so that reducing the exposure convergent time improves face unlock speed.

In some embodiments, described device can also include setting unit；

The setting unit, for each camera shooting in multiple cameras that the acquiring unit obtains image acquisition component Before initial exposure value corresponding to head, according to the brightness value of varying environment, the multiple camera is respectively set described first Beginning exposure value.

In some embodiments, described device can also include start unit；

The start unit, in convergence unit initial exposure value according to corresponding to each camera, Before carrying out automatic exposure convergence respectively to the multiple camera, after the starting of described image acquisition component, open described more A camera.

That is, in some embodiments can be by opening simultaneously multiple cameras, so as to so that the present invention is real The convergence device applied in example carries out AE convergence to each camera respectively, in more multi-environment lower quickening AE convergence rate, to subtract Lacked the exposure convergent time improve face unlock speed.

Embodiment six

The embodiment of the present invention provides a kind of device of face unlock, as shown in figure 8, described device includes:

Setting unit 21 is respectively set the multiple camera described initial for the brightness value according to varying environment Exposure value；

Acquiring unit 22, initial exposure corresponding to each camera in multiple cameras for obtaining image acquisition component Light value；

Unit 23 is restrained, for the initial exposure value according to corresponding to each camera, to the multiple camera Automatic exposure convergence is carried out respectively；

Processing unit 24, for when any one camera restrains completion, the human face region that will identify that be transmitted to place Device is managed, facial image is obtained；

Unlocking unit 25 carries out face unlock using the facial image.

Wherein, acquiring unit 22 is connect with setting unit 21 and convergence unit 23 respectively, the convergence unit 23 and processing Unit 24 connects, and the processing unit is connect with unlocking unit 25.

According to the brightness value of varying environment in the embodiment of the present invention, the initial exposure is respectively set to the multiple camera Light value, so as to so that convergence unit can carry out AE convergence according to these initial exposure values respectively, in more multi-environment lower quickening AE convergence rate, so that reducing the exposure convergent time improves face unlock speed.

In some embodiments, the setting unit 21, specifically for the brightness value according to varying environment, to the multiple Different initial exposure values is respectively set in camera.

Step 15, it obtains facial image and carries out face unlock.

Embodiment seven

The embodiment of the present invention provides a kind of device of face unlock, as shown in figure 9, described device includes:

Start unit 31, for opening the multiple camera after the starting of described image acquisition component.

Acquiring unit 32, initial exposure corresponding to each camera in multiple cameras for obtaining image acquisition component Light value；

Unit 33 is restrained, initial exposure value corresponding to each camera for obtaining according to the acquiring unit is right The multiple camera carries out automatic exposure AE convergence respectively；

Processing unit 34, for when any one camera restrains completion, the human face region that will identify that be transmitted to place Device is managed, facial image is obtained；

Unlocking unit 35 carries out face unlock using the facial image.

Wherein, acquiring unit 32 is connect with start unit 31 and convergence unit 33 respectively, the convergence unit 33 and processing Unit 34 connects, and the processing unit 34 is connect with unlocking unit 35.

The embodiment of the present invention after the starting of described image acquisition component, opens the multiple camera shooting by start unit 31 Head obtains initial exposure value corresponding to each camera in multiple cameras of image acquisition component by acquiring unit 32, By restraining the initial exposure value according to corresponding to each camera that the acquiring unit obtains of unit 33, taken the photograph to the multiple As head carries out automatic exposure AE convergence respectively, and then processing unit 34 can be made in the convergence unit to any one camera When convergence is completed, the face figure for restraining any one thecamera head appropriate brightness of completion is unlocked to rear end face to be calculated Method obtains facial image and carries out face unlock.

Step 26, it obtains facial image and carries out face unlock.

Embodiment eight

The embodiment of the present invention provides a kind of device of face unlock, and as shown in Figure 10, described device includes:

Start unit 41, for opening the multiple camera after the starting of described image acquisition component.

Setting unit 42 is respectively set the multiple camera described initial for the brightness value according to varying environment Exposure value；

Acquiring unit 43, initial exposure corresponding to each camera in multiple cameras for obtaining image acquisition component Light value；

Unit 44 is restrained, initial exposure value corresponding to each camera for obtaining according to the acquiring unit is right The multiple camera carries out automatic exposure AE convergence respectively；

Processing unit 45, for when any one camera restrains completion, the human face region that will identify that be transmitted to place Device is managed, facial image is obtained；

Unlocking unit 46 carries out face unlock using the facial image.

Wherein, setting unit 42 is connect with start unit 41 and acquiring unit 43 respectively, and acquiring unit 43 is also single with convergence Member 44 connects, and processing unit 45 is also connect with convergence unit 44 and unlocking unit 46 respectively.

The embodiment of the present invention opens the multiple camera by start unit 41, by setting unit 42 according to different rings The initial exposure value is respectively set to the multiple camera in the brightness value in border, obtains Image Acquisition by acquiring unit 43 Initial exposure value corresponding to each camera in multiple cameras of component, and then convergence unit 44 can be made to be obtained according to described Initial exposure value corresponding to each camera for taking unit to obtain, automatic exposure AE receipts are carried out to the multiple camera respectively It holds back, makes processing unit 45, described for restraining completion when the convergence unit restrains completion to any one camera The face figure of thecamera head appropriate brightness of anticipating gives rear end face unlocking algorithm, obtains facial image and carries out face unlock.

Embodiment nine

The embodiment of the present invention provides a kind of mobile terminal, and the terminal includes memory and processor；The memory is deposited Initial automatic exposure convergence computer program is contained, the processor executes the computer program, to realize embodiment as above One to any one of example IV the method the step of.

For example, the processor executes the computer program, to realize following steps:

Wherein, the multiple camera can be two cameras.

That is, in some embodiments, can each be taken the photograph in multiple cameras by obtaining image acquisition component The initial exposure value as corresponding to head, and the initial exposure value according to corresponding to each camera, to the multiple camera shooting Head respectively carry out automatic exposure convergence, thus any one camera restrain complete when, restrain completion it is described any one The face figure of thecamera head appropriate brightness gives rear end face unlocking algorithm, obtains facial image and carries out face unlock.Such as:

That is, in some embodiments, it can be by the brightness value according to varying environment, to the multiple camera The initial exposure value is respectively set, while obtaining in multiple cameras of image acquisition component corresponding to each camera just Beginning exposure value, and the initial exposure value according to corresponding to each camera carry out the multiple camera automatic respectively Exposure convergence, so that any one the described thecamera head for restraining completion is suitable when any one camera restrains completion The face figure of brightness gives rear end face unlocking algorithm, obtains facial image and carries out face unlock.

In some embodiments, the brightness value according to varying environment is respectively set the multiple camera described Initial exposure value, comprising:

In some embodiments, the initial exposure value according to corresponding to each camera, takes the photograph to the multiple Before carrying out automatic exposure convergence respectively as head, comprising:

That is, in some embodiments, can be opened the multiple by after the starting of described image acquisition component Camera, by initial exposure value corresponding to each camera in multiple cameras of acquisition image acquisition component, and according to Initial exposure value corresponding to each camera carries out automatic exposure convergence to the multiple camera respectively, thus When the convergence of any one camera is completed, the face figure of any one thecamera head appropriate brightness of completion is restrained to after Face unlocking algorithm is held, facial image is obtained and carries out face unlock.

Embodiment ten

The embodiment of the present invention provides a kind of computer readable storage medium, which is characterized in that the storage medium is stored with Initial automatic exposure restrains computer program, and the computer program can be executed by least one processor, as above real to realize The step of applying example one to any one of example IV the method.

The embodiment of the present invention in specific implementation, can have corresponding technical effect refering to above-mentioned each embodiment.

Figure 11 is the structural schematic diagram for the mobile terminal that another embodiment of the present invention provides.Mobile terminal shown in Figure 11 400 include: at least one processor 401, memory 402, at least one network interface 404 and other users interface 403.It is mobile Various components in terminal 400 are coupled by bus system 405.It is understood that bus system 405 is for realizing these groups Connection communication between part.Bus system 405 further includes power bus, control bus and state in addition to including data/address bus Signal bus.But for the sake of clear explanation, various buses are all designated as bus system 405 in Figure 11.

Wherein, user interface 403 may include display, keyboard or pointing device (for example, mouse, trace ball (trackball), touch-sensitive plate or touch screen etc..

It is appreciated that the memory 402 in the embodiment of the present invention can be volatile memory or nonvolatile memory, It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read- Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links Dynamic random access memory (Synch link DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).Memory 402 described herein is intended to include but is not limited to these and any other suitable type Memory.

In some embodiments, memory 402 stores following element, and unit or data structure can be performed, or Their subset of person or their superset: operating system 4021 and application program 4022.

Wherein, operating system 4021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 4022 includes various application programs, such as media Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention The program of method may be embodied in application program 4022.

In embodiments of the present invention, by the program or instruction of calling memory 402 to store, specifically, can be application The program or instruction stored in program 4022, processor 401 are used to execute method and step provided by each method embodiment, such as Include:

Face unlock is carried out using the facial image.

The method that the embodiments of the present invention disclose can be applied in processor 401, or be realized by processor 401. Processor 401 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each Step can be completed by the integrated logic circuit of the hardware in processor 401 or the instruction of software form.Above-mentioned processing Device 401 can be general processor, digital signal processor (Digital Signal Processor, DSP), dedicated integrated electricity Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general Processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with institute of the embodiment of the present invention The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor And software unit combination executes completion.Software unit can be located at random access memory, and flash memory, read-only memory may be programmed read-only In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at The step of memory 402, processor 401 reads the information in memory 402, completes the above method in conjunction with its hardware.

It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor, In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.

For software implementations, the techniques described herein can be realized by executing the unit of function described herein.Software generation Code is storable in memory and is executed by processor.Memory can in the processor or portion realizes outside the processor.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit It connects, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention is substantially The part of the part that contributes to existing technology or the technical solution can embody in the form of software products in other words Come, which is stored in a storage medium, including some instructions are used so that a computer equipment (can To be personal computer, server or the network equipment etc.) execute all or part of each embodiment the method for the present invention Step.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program The medium of code.

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do There is also other identical elements in the process, method of element, article or device.

Herein, the relational terms of such as " first " and " second " or the like are used merely to an entity or operation It is distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation, there are any this Actual relationship or sequence.

Through the above description of the embodiments, those skilled in the art can be understood that each reality of the present invention Applying method described in example can realize by means of software and necessary general hardware platform, naturally it is also possible to by hardware, But the former is more preferably embodiment in many cases.Based on this understanding, technical solution of the present invention is substantially in other words The part that contributes to existing technology can be embodied in the form of software products, which is stored in one In a storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be hand Machine, computer, server, air conditioner or network equipment etc.) execute method or implementation described in each embodiment of the present invention Method described in certain parts of example.

The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims

1. a kind of face unlocking method characterized by comprising

According to initial exposure value corresponding to each camera, automatic exposure receipts are carried out respectively to the multiple camera It holds back；

When any one camera restrains completion, the human face region that will identify that is transmitted to processor, obtains facial image；

Face unlock is carried out using the facial image.

2. the method for face unlock according to claim 1, which is characterized in that described to obtain the multiple of image acquisition component In camera before initial exposure value corresponding to each camera, comprising:

3. the method for face unlock according to claim 2, which is characterized in that the brightness value according to varying environment, The initial exposure value is respectively set to the multiple camera, comprising:

4. the method for face unlock according to claim 1, which is characterized in that described right according to each camera institute The initial exposure value answered, before carrying out automatic exposure convergence respectively to the multiple camera, comprising:

5. the method for face unlock according to claim 1-4, which is characterized in that the multiple camera is two A camera.

6. a kind of mobile terminal, which is characterized in that the mobile terminal includes memory and processor；

The memory is stored with initial automatic exposure convergence computer program, and the processor executes the computer program, To perform the steps of

Face unlock is carried out using the facial image.

7. mobile terminal according to claim 6, which is characterized in that the multiple cameras for obtaining image acquisition component In before initial exposure value corresponding to each camera, comprising:

8. mobile terminal according to claim 7, which is characterized in that the brightness value according to varying environment, to described The initial exposure value is respectively set in multiple cameras, comprising:

9. mobile terminal according to claim 6, which is characterized in that described first according to corresponding to each camera Beginning exposure value, before carrying out automatic exposure convergence respectively to the multiple camera, comprising:

10. a kind of computer readable storage medium, which is characterized in that the storage medium is stored with initial automatic exposure convergence gauge Calculation machine program, the computer program can be executed by least one processor, to realize such as any one of claim 1-5 institute The step of stating method.