CN109670407A - A kind of face identification method and mobile terminal - Google Patents
A kind of face identification method and mobile terminal Download PDFInfo
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- CN109670407A CN109670407A CN201811420551.8A CN201811420551A CN109670407A CN 109670407 A CN109670407 A CN 109670407A CN 201811420551 A CN201811420551 A CN 201811420551A CN 109670407 A CN109670407 A CN 109670407A
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- face
- projection
- mobile terminal
- intensity
- recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
Abstract
The present invention provides a kind of face identification method and mobile terminals, which comprises when getting the facial image of the mobile terminal holder, determines face at a distance from the mobile terminal；It determines described apart from corresponding projection intensity；An array projection is carried out based on the projection intensity；Recognition of face is carried out to the mobile terminal holder according to described array projection.By detecting the distance between facial image and mobile terminal, different distance corresponds to different projection intensity, under the premise of guaranteeing the recognition rate, reduces projection intensity as far as possible to minimize the interference to radio frequency and promotes the usage experience of user.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of face identification method and mobile terminal.
Background technique
Recognition of face is a kind of biological identification technology for carrying out identification based on facial feature information of people.With section
The development of skill, face recognition technology are answered extensively because of features such as the raising of its precision, the increase of recognition speed and conveniences
The every aspect in life is used.
Currently used face identification method is that invisible luminous point is projected people by preposition dot matrix projector
Face, the reflection light point received further according to infrared lens, so that it may calculate face depth map.The 2D face of camera shooting combines
The depth face information of calculating can draw out accurate careful 3D face, pedestrian's face of going forward side by side unlock by algorithm process.
Since above scheme needs dot matrix projector to project a large amount of dot matrix, instantaneous power is big, therefore to mobile terminal radio frequency,
Especially low frequency band is interfered very big, will cause interrupted call, interruption, mobile network's downloading interruption even mobile terminal suspension weight
The problems such as new registration, influences the usage experience of user.
Summary of the invention
The embodiment of the present invention provides a kind of face identification method and mobile terminal, to solve recognition of face pair in the prior art
The interference problem of radio frequency.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, the embodiment of the invention provides a kind of face identification methods, comprising: when getting the mobile terminal
When the facial image of holder, determine face at a distance from the mobile terminal；It determines described apart from corresponding projection intensity；Base
An array projection is carried out in the projection intensity；Recognition of face is carried out to the mobile terminal holder according to described array projection.
Second aspect, the embodiment of the invention also provides a kind of mobile terminal, the mobile terminal includes: the first determining mould
Block, for determining face at a distance from the mobile terminal when getting the facial image of the mobile terminal holder；The
Two determining modules, it is described apart from corresponding projection intensity for determining；Projection module, for being carried out a little based on the projection intensity
Array projection；Identification module, for carrying out recognition of face to the mobile terminal holder according to described array projection.
The third aspect the embodiment of the invention also provides a kind of mobile terminal, including processor, memory and is stored in institute
The computer program that can be run on memory and on the processor is stated, when the computer program is executed by the processor
The step of realizing the face identification method.
Fourth aspect, it is described computer-readable to deposit the embodiment of the invention also provides a kind of computer readable storage medium
Computer program is stored on storage media, and the step of the face identification method is realized when the computer program is executed by processor
Suddenly.
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, and by detecting the distance between facial image and mobile terminal, different distance is corresponding not
With projection intensity, under the premise of guaranteeing the recognition rate, projection intensity is reduced as far as possible, to minimize the interference to radio frequency, promoted
The usage experience of user.
Detailed description of the invention
Fig. 1 is a kind of step flow chart of face identification method of the embodiment of the present invention one；
Fig. 2 is a kind of step flow chart of face identification method of the embodiment of the present invention two；
Fig. 3 is a kind of structural block diagram of mobile terminal of the embodiment of the present invention three；
Fig. 4 is a kind of structural block diagram of mobile terminal of the embodiment of the present invention four；
Fig. 5 is a kind of hardware structural diagram of mobile terminal of the embodiment of the present invention five.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one
Referring to Fig.1, a kind of step flow chart of face identification method of the embodiment of the present invention one is shown.
Face identification method provided in an embodiment of the present invention the following steps are included:
Step 101: when getting the facial image of mobile terminal holder, determining face at a distance from mobile terminal.
When mobile terminal front camera gets the facial image of mobile terminal holder, mobile terminal and people are measured
The distance between face.
Step 102: determining apart from corresponding projection intensity.
Before the facial image for getting mobile terminal holder.According to the distance of facial image and mobile terminal, d1,
d2, d3…dn…(d1<d2<d3), correspondence, which is respectively set, can guarantee the distance projection intensity S of discrimination1, S2, S3…Sn…(S1<
S2<S3...), and data are saved as into cure parameter.
It searches from cure parameter apart from corresponding projection intensity, if facial image and distance of mobile terminal d are in dn<d<
dn+1When, then by Sn+1It is determined as the projection intensity of d.
Step 103: an array projection is carried out based on projection intensity.
Wherein, different distance corresponds to different projection intensity.Apart from smaller, projection intensity is weaker.When being closer, protecting
Under the premise of demonstrate,proving discrimination, projection intensity is reduced, as far as possible to minimize the interference to radio frequency.
Based on lookup and determining projection intensity carries out an array projection.
Step 104: recognition of face being carried out to mobile terminal holder according to point array projection.
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, and by detecting the distance between facial image and mobile terminal, different distance is corresponding not
With projection intensity, under the premise of guaranteeing the recognition rate, projection intensity is reduced as far as possible, to minimize the interference to radio frequency, promoted
The usage experience of user.
Embodiment two
Referring to Fig. 2, a kind of step flow chart of face identification method of the embodiment of the present invention two is shown.
Face identification method provided in an embodiment of the present invention the following steps are included:
Step 201: when getting the facial image of mobile terminal holder, determining face at a distance from mobile terminal.
When mobile terminal front camera gets the facial image of mobile terminal holder, mobile terminal and people are measured
The distance between face.
Step 202: determining the colour of skin of facial image.
Before the facial image for getting mobile terminal holder, the corresponding throwing of the different colours of skin is prestored in the terminal
Penetrate intensive parameter group.
The colour of skin for determining facial image determines multiple characteristic points in facial image, and carries out image color to each characteristic point
Judgement, such as: judge that perhaps YUV value by different rgb values or YUV value determines facial image for the rgb value of each characteristic point
The colour of skin.YUV, is a kind of colour coding method, and " Y " indicates brightness (Luminance, Luma), and " U " and " V " be then coloration, dense
Degree.Rgb color mode is a kind of color standard of industry, is by red (R), green (G), blue (B) three Color Channels
To obtain miscellaneous color, RGB is to represent three channels of red, green, blue for variation and their mutual superpositions
Color.
Step 203: searching projection intensive parameter group corresponding with the colour of skin in the terminal.
Determine that the corresponding projection intensive parameter group of the colour of skin, the different colours of skin correspond to different projection intensive parameter groups.
Such as pale skin S0w, yellow skin S0y, brown skin S0br, casting skin S0blDeng the different colours of skin are to infrared reflection journey
Degree is different.
Step 204: being obtained from projection intensive parameter group and apart from matched projection intensity.
Wherein, different distance corresponds to different projection intensity.
Under same distance, the corresponding projection intensity of the different colours of skin is different.
If the colour of skin of facial image is yellow, and facial image and distance of mobile terminal d are in dn<d<dn+1When, then by S0yn+1
It is determined as the projection intensity of d.
Step 205: an array projection is carried out based on projection intensity.
Wherein, different distance corresponds to different projection intensity.
Step 206: recognition of face being carried out to mobile terminal holder according to point array projection.
Step 207: the dot matrix intensity that detection is reflected from face.
Step 208: in the case where dot matrix intensity is greater than preset strength, determining recognition of face success.
According to structure light principle, dot matrix projector is that have the pattern of special construction (comprising multiple special constructions
Point, such as 30000), the infrared external reflection light received according to infrared lens identifies the special construction point received, according to it
The special construction point recognized calculates 3D shape.
Reflection dot matrix intensity is calculated according to the special construction point that receives, some is set in advance according to experiment or test can be with
Guarantee the preset strength K of recognition effect0, when the dot matrix intensity being reflected back that infrared lens receive is greater than K0When, then it is assumed that this throwing
Discrimination can be guaranteed by penetrating intensity.
Whether successful the step for detection recognition of face be acceptable are as follows: the special construction points that detection is reflected from face
Amount；Calculate the ratio of the special construction point total quantity of special construction point quantity and described array projection；It is greater than default ratio in ratio
In the case where value, recognition of face success is determined.
A proportion threshold value K% is set in advance, the special construction point only recognized accounts for all characteristic points launched
Ratio is more than K%, just thinks that the reflection dot matrix that infrared lens receive can guarantee normally to identify, then it is assumed that this projection intensity can
To guarantee discrimination.
It should be noted that those skilled in the art can according to the actual situation set default ratio, wherein in advance
If ratio can be 60%, 70%, 80% etc., the embodiment of the present invention is not specifically limited this.
Step 209: in the case where recognition of face failure, by projection intensity according to default projection strength increase, until people
Face identifies successfully.
If Sn+1Project under intensity, still can not accurately obtain facial contour, as face skin is more black absorb it is more red
Outside, cause infrared lens that can not obtain the reflection dot matrix of sufficient intensity, then can be incremented by according to default projection intensity Δ S, encounter this
When class situation, the projection intensity (S of enhancing is calledn+1+ Δ S) array projection is carried out, continue if still deficiency strong with default projection
Δ S strength increase is spent, until maximum emission intensity, guarantees that face can identify success.
The present embodiment can also constantly correct for default projection intensity and promote resolution:
It determines in history use process, the first projection intensity in preset time period when each recognition of face；Determine each
The arithmetic mean of instantaneous value of one projection intensity；By the difference of arithmetic mean of instantaneous value and projection intensity, as default projection intensity.
Subsequent every time in use, according to the projection intensity called in actual use, constantly adjustment is default throws mobile terminal
Penetrate intensity.Such as: 3D recognition of face n times are used, intensity arithmetic average, geometrical mean, root mean square average, weighting are projected
Average value etc. calculates arithmetic mean of instantaneous value and projects the difference of intensity, is i.e. calculating arithmetic mean of instantaneous value and Sn+1Difference, constantly adjust
Default projection intensity, improves recognition efficiency.
This preferred embodiment is used for constantly excellent according to the actual use process of intelligent algorithm and user
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, and by detecting the distance between facial image and mobile terminal, different distance is corresponding not
With projection intensity, under the premise of guaranteeing the recognition rate, projection intensity is reduced as far as possible, to minimize the interference to radio frequency, promoted
The usage experience of user.In addition, setting different projection intensity by the different colours of skin, discrimination can be promoted.
Embodiment three
Referring to Fig. 3, a kind of structural block diagram of mobile terminal of the embodiment of the present invention three is shown.
Mobile terminal provided in an embodiment of the present invention includes: the first determining module 301, for described mobile whole when getting
When holding the facial image of holder, determine the face at a distance from the mobile terminal；Second determining module 302, for true
It is fixed described apart from corresponding projection intensity；Projection module 303, for carrying out an array projection based on the projection intensity；Identify mould
Block 304, for carrying out recognition of face to the mobile terminal holder according to described array projection.
When mobile terminal front camera gets the facial image of mobile terminal holder, the first determining module is determined
The distance between mobile terminal and face, the second determining module are searched from cure parameter apart from corresponding projection intensity, if people
Face image and distance of mobile terminal d are in dn<d<dn+1When, then by Sn+1It is determined as the projection intensity of d.Projection module is based on searching simultaneously
Determining projection intensity carries out an array projection, and identification module carries out recognition of face to mobile terminal holder according to point array projection.
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, and by detecting the distance between facial image and mobile terminal, different distance is corresponding not
With projection intensity, under the premise of guaranteeing the recognition rate, projection intensity is reduced as far as possible, to minimize the interference to radio frequency, promoted
The usage experience of user.
Example IV
Referring to Fig. 4, a kind of structural block diagram of mobile terminal of the embodiment of the present invention four is shown.
Mobile terminal provided in an embodiment of the present invention includes: the first determining module 401, for described mobile whole when getting
When holding the facial image of holder, determine face at a distance from the mobile terminal；Second determining module 402, for determining
It states apart from corresponding projection intensity；Projection module 403, for carrying out an array projection based on the projection intensity；Identification module
404, for carrying out recognition of face to the mobile terminal holder according to described array projection.
Preferably, the mobile terminal further include: detection module 405 is used in the identification module 404 according to the point
After array projection carries out recognition of face to the mobile terminal holder, whether detection recognition of face succeeds；It is incremented by module 406,
For in the case where recognition of face failure, by the projection intensity according to default projection strength increase, up to the people
Face identifies successfully.
Preferably, the detection module 405 includes: the first detection sub-module 4051, is reflected for detecting from the face
Dot matrix intensity；First determines submodule 4052, for determining face in the case where the dot matrix intensity is greater than preset strength
It identifies successfully.
Preferably, the detection module 405 includes: the second detection sub-module 4053, is reflected for detecting from the face
Special construction point quantity；Computational submodule 4054, for calculating the spy of special construction the point quantity and described array projection
The ratio of different system point total quantity；Second determines submodule 4055, is used in the case where the ratio is greater than default ratio, really
Determine recognition of face success.
Preferably, second determining module 402 includes: that third determines submodule 4021, for determining the face figure
The colour of skin of picture；Submodule 4022 is searched, for searching projection intensive parameter corresponding with the colour of skin in the mobile terminal
Group；Acquisition submodule 4023, for being obtained from the projection intensive parameter group and described apart from matched projection intensity,
In, different distance corresponds to different projection intensity.
Preferably, the mobile terminal further include: third determining module 407 is used in the identification module 404 according to institute
After an array projection is stated to mobile terminal holder progress recognition of face, determine in history use process, preset time period
The first projection intensity when interior each recognition of face；4th determining module 408, for determining the calculation of each first projection intensity
Art average value；5th determining module 409, for by the arithmetic mean of instantaneous value and it is described projection intensity difference, as default throwing
Penetrate intensity.
Mobile terminal provided in an embodiment of the present invention can be realized mobile terminal in the embodiment of the method for Fig. 1 to Fig. 2 and realize
Each process, to avoid repeating, which is not described herein again.
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, and by detecting the distance between facial image and mobile terminal, different distance is corresponding not
With projection intensity, under the premise of guaranteeing the recognition rate, projection intensity is reduced as far as possible, to minimize the interference to radio frequency, promoted
The usage experience of user.In addition, setting different projection intensity by the different colours of skin, discrimination can be promoted.
Embodiment five
Referring to Fig. 5, the hardware structural diagram of a kind of mobile terminal of each embodiment to realize the present invention.
The mobile terminal 500 includes but is not limited to: radio frequency unit 501, network module 502, audio output unit 503, defeated
Enter unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, processor
The components such as 510 and power supply 511.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 5 is not constituted
Restriction to mobile terminal, mobile terminal may include than illustrating more or fewer components, perhaps combine certain components or
Different component layouts.In embodiments of the present invention, mobile terminal include but is not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Processor 510, for determining face and the shifting when getting the facial image of the mobile terminal holder
The distance of dynamic terminal；It determines described apart from corresponding projection intensity；An array projection is carried out based on the projection intensity；According to described in
Point array projection carries out recognition of face to the mobile terminal holder.
In embodiments of the present invention, by when getting the facial image of mobile terminal holder, determining face and moving
The distance of dynamic terminal；It determines apart from corresponding projection intensity；An array projection is carried out based on projection intensity；Foundation point array projection is to shifting
Dynamic holder terminal carries out recognition of face, by detecting the distance between facial image and mobile terminal, is guaranteeing discrimination
Under the premise of, it reduces projection intensity as far as possible to minimize the interference to radio frequency and promotes the usage experience of user.
It should be understood that the embodiment of the present invention in, radio frequency unit 501 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 510 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 501 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 501 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal provides wireless broadband internet by network module 502 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 503 can be received by radio frequency unit 501 or network module 502 or in memory 509
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 503 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 500 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 503 includes loudspeaker, buzzer and receiver etc..
Input unit 504 is for receiving audio or video signal.Input unit 504 may include graphics processor
(Graphics Processing Unit, GPU) 5041 and microphone 5042, graphics processor 5041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 506.Through graphics processor 5041, treated that picture frame can be deposited
Storage is sent in memory 509 (or other storage mediums) or via radio frequency unit 501 or network module 502.Mike
Wind 5042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output that mobile communication base station can be sent to via radio frequency unit 501 is converted in the case where telephone calling model.
Mobile terminal 500 further includes at least one sensor 505, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 5061, and proximity sensor can close when mobile terminal 500 is moved in one's ear
Display panel 5061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 505 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 506 is for showing information input by user or being supplied to the information of user.Display unit 506 can wrap
Display panel 5061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 5061.
User input unit 507 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 507 include touch panel 5071 and
Other input equipments 5072.Touch panel 5071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 5071 or in touch panel 5071
Neighbouring operation).Touch panel 5071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 510, receiving area
It manages the order that device 510 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Seed type realizes touch panel 5071.In addition to touch panel 5071, user input unit 507 can also include other input equipments
5072.Specifically, other input equipments 5072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 5071 can be covered on display panel 5061, when touch panel 5071 is detected at it
On or near touch operation after, send processor 510 to determine the type of touch event, be followed by subsequent processing device 510 according to touching
The type for touching event provides corresponding visual output on display panel 5061.Although in Fig. 5, touch panel 5071 and display
Panel 5061 is the function that outputs and inputs of realizing mobile terminal as two independent components, but in some embodiments
In, can be integrated by touch panel 5071 and display panel 5061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place is without limitation.
Interface unit 508 is the interface that external device (ED) is connect with mobile terminal 500.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 508 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in mobile terminal 500 or can be used in 500 He of mobile terminal
Data are transmitted between external device (ED).
Memory 509 can be used for storing software program and various data.Memory 509 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 509 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 510 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 509, and calls and is stored in storage
Data in device 509 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 510 may include one or more processing units；Preferably, processor 510 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 510.
Mobile terminal 500 can also include the power supply 511 (such as battery) powered to all parts, it is preferred that power supply 511
Can be logically contiguous by power-supply management system and processor 510, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 500 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 510, and memory 509 is stored in
On memory 509 and the computer program that can run on the processor 510, the computer program are executed by processor 510
Each process of the above-mentioned face identification method embodiment of Shi Shixian, and identical technical effect can be reached, to avoid repeating, here
It repeats no more.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned face identification method embodiment, and energy when being executed by processor
Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic or disk etc..
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.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (14)
1. a kind of face identification method is applied to mobile terminal, which is characterized in that the described method includes:
When getting the facial image of the mobile terminal holder, determine face at a distance from the mobile terminal；
It determines described apart from corresponding projection intensity；
An array projection is carried out based on the projection intensity；
Recognition of face is carried out to the mobile terminal holder according to described array projection.
2. the method according to claim 1, wherein it is described according to described array projection to the mobile terminal
After holder carries out the step of recognition of face, the method also includes:
Whether detection recognition of face succeeds；
In the case where recognition of face failure, by the projection intensity according to default projection strength increase, until the people
Face identifies successfully.
3. according to the method described in claim 2, it is characterized in that, described detect the whether successful step of recognition of face, comprising:
Detect the dot matrix intensity reflected from the face；
In the case where the dot matrix intensity is greater than preset strength, recognition of face success is determined.
4. according to the method described in claim 2, it is characterized in that, described detect the whether successful step of recognition of face, comprising:
Detect the special construction point quantity reflected from the face；
Calculate the ratio of the special construction point quantity of the face reflection and the special construction point total quantity of described array projection；
In the case where the ratio is greater than default ratio, recognition of face success is determined.
5. the method according to claim 1, wherein the determination step apart from corresponding projection intensity
Suddenly, comprising:
Determine the colour of skin of the facial image；
Projection intensive parameter group corresponding with the colour of skin is searched in the mobile terminal；
It is obtained from the projection intensive parameter group and described apart from matched projection intensity, wherein different distance is corresponding different
Project intensity.
6. according to the method described in claim 2, it is characterized in that, it is described according to described array projection to the mobile terminal
After holder carries out the step of recognition of face, the method also includes:
It determines in history use process, the first projection intensity in preset time period when each recognition of face；
Determine the arithmetic mean of instantaneous value of each first projection intensity；
By the difference of the arithmetic mean of instantaneous value and the projection intensity, as default projection intensity.
7. a kind of mobile terminal, which is characterized in that the mobile terminal includes:
First determining module, for determining face and the shifting when getting the facial image of the mobile terminal holder
The distance of dynamic terminal；
Second determining module, it is described apart from corresponding projection intensity for determining；
Projection module, for carrying out an array projection based on the projection intensity；
Identification module, for carrying out recognition of face to the mobile terminal holder according to described array projection.
8. mobile terminal according to claim 7, which is characterized in that the mobile terminal further include:
Detection module, for carrying out face knowledge to the mobile terminal holder according to described array projection in the identification module
After not, whether detection recognition of face succeeds；
It is incremented by module, in the case where recognition of face failure, the projection intensity to be passed according to default projection intensity
Increase, until recognition of face success.
9. mobile terminal according to claim 8, which is characterized in that the detection module includes:
First detection sub-module, for detecting the dot matrix intensity reflected from the face；
First determines submodule, in the case that the dot matrix intensity for reflecting in the face is greater than preset strength, determines face
It identifies successfully.
10. mobile terminal according to claim 8, which is characterized in that the detection module includes:
Second detection sub-module, for detecting the special construction point quantity reflected from the face；
Computational submodule, the ratio of the special construction point total quantity for calculating the special construction point quantity and described array projection
Value；
Second determines submodule, for determining recognition of face success in the case where the ratio is greater than default ratio.
11. mobile terminal according to claim 7, which is characterized in that second determining module includes:
Third determines submodule, for determining the colour of skin of the facial image；
Submodule is searched, for searching projection intensive parameter group corresponding with the colour of skin in the mobile terminal；
Acquisition submodule is used to obtain from the projection intensive parameter group and described apart from matched projection intensity, wherein no
Same distance corresponds to different projection intensity.
12. mobile terminal according to claim 8, which is characterized in that the mobile terminal further include:
Third determining module, for carrying out people to the mobile terminal holder according to described array projection in the identification module
It after face identification, determines in history use process, the first projection intensity in preset time period when each recognition of face；
4th determining module, for determining the arithmetic mean of instantaneous value of each first projection intensity；
5th determining module, for by the arithmetic mean of instantaneous value and it is described projection intensity difference, as default projection intensity.
13. a kind of mobile terminal, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 6 is realized when the computer program is executed by the processor
Any one of described in face identification method the step of.
14. a kind of computer readable storage medium, which is characterized in that store computer journey on the computer readable storage medium
Sequence is realized when the computer program is executed by processor such as face identification method described in any one of claims 1 to 6
Step.
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