CN107679570A - Solve lock control method and Related product - Google Patents
Solve lock control method and Related product Download PDFInfo
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- CN107679570A CN107679570A CN201710890225.2A CN201710890225A CN107679570A CN 107679570 A CN107679570 A CN 107679570A CN 201710890225 A CN201710890225 A CN 201710890225A CN 107679570 A CN107679570 A CN 107679570A
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- G—PHYSICS
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- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- 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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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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Abstract
The embodiment of the invention discloses one kind solution lock control method and Related product, wherein, method includes：Under noctovision environment, facial image is obtained；Darkening processing is carried out to default face template, obtains darkening face template；The facial image is matched with the darkening face template；When the match is successful for the facial image and the darkening face template, operation is unlocked.The embodiment of the present invention can be carried out darkening processing to face template, reduce the quality of face template under noctovision environment so that its matching value between the facial image under noctovision environment is lifted, and therefore, can lift recognition of face efficiency.
Description
Technical field
The present invention relates to technical field of mobile terminals, and in particular to one kind solution lock control method and Related product.
Background technology
With a large amount of popularization and applications of mobile terminal (mobile phone, tablet personal computer etc.), the application that mobile terminal can be supported is got over
Come more, function is stronger and stronger, and mobile terminal develops towards variation, personalized direction, and turning into can not in user's life
The appliance and electronic lacked.
At present, recognition of face is increasingly favored by mobile terminal production firm, because environmental factor can change
Larger, the success rate of recognition of face is more difficult to get guarantee, especially under noctovision environment, due to that can not gather clearly face figure
Picture, thus, cause the success rate of recognition of face relatively low, therefore, how to improve asking for the recognition of face efficiency under noctovision environment
Inscribe urgently to be resolved hurrily.
The content of the invention
The embodiments of the invention provide one kind solution lock control method and Related product, the face that can be improved under noctovision is known
Other efficiency.
In a first aspect, the embodiment of the present invention provides a kind of mobile terminal, including application processor (Application
Processor, AP), and the face identification device being connected with the AP, wherein,
The face identification device, under noctovision environment, obtaining facial image；
The AP, for carrying out darkening processing to default face template, obtain darkening face template；By the facial image
Matched with the darkening face template；And the facial image with it is described darkening face template the match is successful when, enter
Row unblock operation.
Second aspect, the embodiments of the invention provide one kind to solve lock control method, applied to including application processor AP, with
And the mobile terminal with the AP face identification devices being connected, methods described include：
The face identification device obtains facial image under noctovision environment；
The AP carries out darkening processing to default face template, obtains darkening face template；By the facial image and institute
Darkening face template is stated to be matched；And the facial image with it is described darkening face template the match is successful when, solved
Lock operation.
The third aspect, the embodiments of the invention provide one kind to solve lock control method, including：
Under noctovision environment, facial image is obtained；
Darkening processing is carried out to default face template, obtains darkening face template；
The facial image is matched with the darkening face template；
When the match is successful for the facial image and the darkening face template, operation is unlocked.
Fourth aspect, the embodiments of the invention provide one kind to solve lock control device, including：
First acquisition unit, under noctovision environment, obtaining facial image；
Processing unit is darkened, for carrying out darkening processing to default face template, obtains darkening face template；
Matching unit, for the facial image to be matched with the darkening face template；
Unlocking unit, for the facial image with it is described darkening face template the match is successful when, be unlocked operation.
5th aspect, the embodiments of the invention provide a kind of mobile terminal, including：Application processor AP and memory；With
And one or more programs, one or more of programs are stored in the memory, and it is configured to by the AP
Perform, described program includes being used for such as the instruction of the part or all of step described in the third aspect.
6th aspect, the embodiments of the invention provide a kind of computer-readable recording medium, wherein, it is described computer-readable
Storage medium is used to store computer program, wherein, the computer program causes computer to perform such as the embodiment of the present invention the
The instruction of part or all of step described in three aspects.
7th aspect, the embodiments of the invention provide a kind of computer program product, wherein, the computer program product
Non-transient computer-readable recording medium including storing computer program, the computer program are operable to make calculating
Machine is performed such as the part or all of step described in the third aspect of the embodiment of the present invention.The computer program product can be one
Individual software installation bag.
Implement the embodiment of the present invention, have the advantages that：
As can be seen that solution lock control method and Related product described in the embodiment of the present invention, under noctovision environment,
Facial image is obtained, darkening processing is carried out to default face template, obtains darkening face template, by facial image with darkening face
Template is matched, facial image with darken face template the match is successful when, operation is unlocked, it is thus possible in scotopia
Feel under environment, darkening processing is carried out to face template, reduces the quality of face template so that itself and the people under noctovision environment
Matching value between face image is lifted, and therefore, can lift recognition of face efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Figure 1A is a kind of configuration diagram of Example mobile terminals provided in an embodiment of the present invention；
Figure 1B is a kind of structural representation of mobile terminal provided in an embodiment of the present invention；
Fig. 1 C are a kind of schematic flow sheets for solving lock control method disclosed in the embodiment of the present invention；
Fig. 2 is the schematic flow sheet of another solution lock control method disclosed in the embodiment of the present invention；
Fig. 3 is a kind of another structural representation of mobile terminal provided in an embodiment of the present invention；
Fig. 4 A are a kind of structural representations for solving lock control device provided in an embodiment of the present invention；
Fig. 4 B are a kind of another structural representations for solving lock control device provided in an embodiment of the present invention；
Fig. 4 C are the structures of the darkening processing unit of the solution lock control device described by Fig. 4 A provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 D are a kind of another structural representations for solving lock control device provided in an embodiment of the present invention；
Fig. 4 E are a kind of another structural representations for solving lock control device provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another mobile terminal disclosed in the embodiment of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing etc. are to be used to distinguish
Different objects, rather than for describing particular order.In addition, term " comprising " and " having " and their any deformations, it is intended that
It is to cover non-exclusive include.Such as process, method, system, product or the equipment for containing series of steps or unit do not have
The step of being defined in the step of having listed or unit, but alternatively also including not listing or unit, or alternatively also wrap
Include for other intrinsic steps of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can wrap in conjunction with the embodiments
In at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Mobile terminal involved by the embodiment of the present invention can include the various handheld devices with radio communication function,
Mobile unit, wearable device, computing device or other processing equipments for being connected to radio modem, and various forms
User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal
Device) etc..For convenience of description, apparatus mentioned above is referred to as mobile terminal.
The embodiment of the present invention is described in detail below.A kind of Example mobile terminals 1000 as shown in Figure 1A, the shifting
The face identification device of dynamic terminal 1000 can be camera module 21, and the camera module can be dual camera, above-mentioned double
Camera can be visible image capturing head with one, and one is infrared camera, or, both visible image capturing heads, for example,
One camera is visible image capturing head, and another camera is infrared camera, in another example, a camera is taken the photograph for visible ray
As head and another camera is also visible image capturing head, or above-mentioned camera module can be single camera, such as, it is seen that
Light video camera head, or, infrared camera.Above-mentioned camera module 21 can be front camera or rear camera.
Figure 1B is referred to, Figure 1B is a kind of structural representation of shown mobile terminal 100, and the mobile terminal 100 wraps
Include：Application processor AP110, face identification device 120 and environmental sensor 160, wherein, the AP110 is connected by bus 150
Connect face identification device 120 and environmental sensor 160.Above-mentioned environmental sensor 160 can be used for detecting ambient parameter, and environment passes
Sensor 160 can be following at least one：Ambient light sensor, electromagnetic detection sensor, ambient color temperature detection sensor, positioning
Sensor, temperature sensor, humidity sensor etc., ambient parameter can be following at least one：Ambient brightness, ambient color
Temperature, environmental magnetic field interference coefficient, weather condition, environment light source number, geographical position etc..
Based on the mobile terminal described by Figure 1A-Figure 1B, can be used for implementing function such as：
The face identification device 120, under noctovision environment, obtaining facial image；
The AP110, for carrying out darkening processing to default face template, obtain darkening face template；By the face
Image is matched with the darkening face template；And the match is successful with the darkening face template in the facial image
When, it is unlocked operation.
In a possible example, environmental sensor 160 (ambient light sensor), for obtaining current environment brightness；
The AP110, parameter is darkened also particularly useful for determination corresponding with the current environment brightness first；
In terms of described pair of default face template carries out darkening processing, the AP110 is specifically used for：
Darkening processing is carried out to the default face template according to the described first darkening parameter.
In a possible example, in terms of described pair of default face template carries out darkening processing, the AP110 is specific
For：
Image segmentation is carried out to the facial image, obtains human face region image；
Determine the histogram of the human face region image；
Determine the second darkening parameter corresponding to the histogram；
Darkening processing is carried out to the default face template according to the described second darkening parameter.
In a possible example, the AP110 also particularly useful for：
Image enhancement processing is carried out to the facial image；
It is described by the facial image with it is described darkening face template matched in terms of, the AP is specifically used for：
The facial image after image enhancement processing is matched with the darkening face template.
In a possible example, environmental sensor 160, for obtaining target environment parameter；
The AP110 also particularly useful for：
It is determined that target acquisition parameters corresponding with the target environment parameter；
In terms of the acquisition facial image, the face identification device 120 is specifically used for：
Face is shot according to the target acquisition parameters, obtains the facial image.
Based on the mobile terminal described by above-mentioned Figure 1A-Figure 1B, lock control is solved available for one kind as described below is performed
Method, it is specific as follows：
The face identification device 120 obtains facial image under noctovision environment；
The AP110 carries out darkening processing to default face template, obtains darkening face template；By the facial image with
The darkening face template is matched；And the facial image with it is described darkening face template the match is successful when, carry out
Unblock operation.
As can be seen that the solution lock control method described in the embodiment of the present invention, under noctovision environment, obtains face figure
Picture, darkening processing is carried out to default face template, obtains darkening face template, by facial image with darkening face template progress
Match somebody with somebody, when the match is successful with darkening face template for facial image, be unlocked operation, it is right it is thus possible under noctovision environment
Face template carries out darkening processing, reduces the quality of face template so that it is between the facial image under noctovision environment
Matching value lifted, therefore, recognition of face efficiency can be lifted.
Based on the mobile terminal described by Figure 1A-Figure 1B, Fig. 1 C are referred to, for a kind of unblock provided in an embodiment of the present invention
The embodiment schematic flow sheet of control method.Solution lock control method described in the present embodiment, it may include following steps：
101st, under noctovision environment, facial image is obtained.
Wherein it is possible to by being focused to face, facial image is obtained, facial image can be the figure comprising face
Picture, or, the only only stingy figure image of face.Above-mentioned noctovision environment can be detected to obtain by ambient light sensor.
Wherein, before above-mentioned steps 101, may include steps of：
A1, obtain target environment parameter；
A2, determine target acquisition parameters corresponding with the target environment parameter；
Then, above-mentioned steps 101 are being performed, is obtaining facial image, can implement as follows：
Face is shot according to the target acquisition parameters, obtains the facial image.
Wherein, above-mentioned target environment parameter can be detected to obtain by environmental sensor, and above-mentioned environmental sensor can be used for
Ambient parameter is detected, environmental sensor can be following at least one：Breathing detection sensor, ambient light sensor, electromagnetism inspection
Survey sensor, ambient color temperature detection sensor, alignment sensor, temperature sensor, humidity sensor etc., ambient parameter can be with
For following at least one：Respiration parameter, ambient brightness, environment colour temperature, environmental magnetic field interference coefficient, weather condition, environment light source
Number, geographical position etc., respiration parameter can be following at least one：Respiration rate, respiratory rate, Breathiness, breathing
Curve etc..
Further, the corresponding relation between acquisition parameters and ambient parameter can be prestored in mobile terminal, and then,
Corresponding with target environment parameter target acquisition parameters are determined according to the corresponding relation, above-mentioned acquisition parameters can be included but not only
It is limited to：Focal length, exposure time, aperture size, exposal model, sensitivity ISO, white balance parameter etc..In this way, it can obtain
Optimal image under the environment.
Alternatively, before above-mentioned steps 101 are performed, can also comprise the following steps：
Current environment brightness is obtained, when the current environment brightness is less than predetermined luminance threshold value, confirms that current environment is
Noctovision environment.
Wherein, above-mentioned predetermined luminance threshold value can voluntarily be set or system default by user.It is low in current environment brightness
When predetermined luminance threshold value, then it is considered that being presently at noctovision environment.
102nd, darkening processing is carried out to default face template, obtains darkening face template.
Wherein, above-mentioned default face template can pre-save in a memory in the mobile terminal.In the embodiment of the present invention,
In view of under different dark situations, it is necessary to preset face template darken degree it is different.
Alternatively, before above-mentioned steps 102, can also comprise the following steps：
B1, obtain current environment brightness；
B2, determine that corresponding with the current environment brightness first darkens parameter；
Then, step 102 is being performed, darkening processing is carried out to default face template, can be implemented as follows：
Darkening processing is carried out to the default face template according to the described first darkening parameter.
Wherein it is possible to current environment brightness is obtained by ambient light sensor.Above-mentioned first darkening parameter can be preset secretly
Change algorithm darkening parameter, extent of darkening corresponding to different darkening parameters is different, it is above-mentioned it is default darkening algorithm can be with
Lower at least one：Wavelet algorithm, gray compression (opposite with gray scale stretching), Wiener filtering, medium filtering etc., according to above-mentioned side
Formula can obtain first suitable with environment and darken parameter, and then, can be according to the first darkening parameter to presetting face template
Carry out darkening processing, on the one hand reduce picture quality, on the other hand, also cause the display effect of default facial image with its
Current environment is suitable, can lift recognition of face efficiency.
Alternatively, in above-mentioned steps 102, darkening processing is carried out to default face template, it may include following steps：
21st, image segmentation is carried out to the facial image, obtains human face region image；
22nd, the histogram of the human face region image is determined；
23rd, the second darkening parameter corresponding to the histogram is determined；
24th, darkening processing is carried out to the default face template according to the described second darkening parameter.
Wherein, in recognition of face, main matching is human face region, thus, the background in facial image can neglect
Slightly, and then, image segmentation can be carried out to facial image, obtains human face region image.It is possible to further determine human face region
The histogram of image, histogram reflect the intensity profile situation of face to a certain extent, and then, can be according to default straight
Mapping relations between side's figure and darkening parameter, the second darkening parameter corresponding to the histogram in step 22 is determined, and then, according to
Second darkening parameter carries out darkening processing to default face template, and image can be dimmed after darkening processing, such darkening parameter
It is more consistent with the feature of image of human face region so that default face template is more bonded with current environment.Above-mentioned second darkens
Parameter can preset the darkening parameter for darkening algorithm, and extent of darkening corresponding to different darkening parameters is different, above-mentioned default dark
It can be following at least one to change algorithm：Wavelet algorithm, gray compression (opposite with gray scale stretching), Wiener filtering, medium filtering
Etc., second suitable with the gamma characteristic of face can be obtained in the manner described above darkens parameter.
103rd, the facial image is matched with the darkening face template.
Wherein it is possible to facial image is matched with darkening face template, due to darkening face template and facial image
Local environment is suitable, therefore, can be on the basis of security is not reduced, and lifts matching between the two to a certain extent
Value, improves recognition of face efficiency.
Alternatively, in above-mentioned steps 103, the facial image is matched with darkening face template, it may include as follows
Step：
31st, the most clear area of the facial image is determined, and feature point extraction is carried out to the most clear area, is obtained
Fisrt feature point set；
32nd, the circumference of the facial image is extracted, obtains the first profile；
33rd, the first profile is matched with the second profile of the darkening face template, and by described first
Feature point set is matched with the darkening face template；
34th, in second outline success of the first profile with the darkening face template and the fisrt feature point
Collection with it is described darkening face template the match is successful when, confirm the match is successful；In the first profile and the darkening face template
The second outline failure, or, the fisrt feature point set with it is described darkening face template it fails to match when, confirm matching
Failure.
Wherein, in the embodiment of the present invention, most clear area can be chosen from facial image, if most clear area, adopted
The feature of collection is complete, therefore, is advantageous to lift recognition of face efficiency, on the other hand, because most clear area is subregion,
Contingency matching is there may be, or, identification region is less, therefore carries out contours extract to facial image, obtains the first profile,
In matching process, the characteristic point of most clear area is matched with darkening face template, meanwhile, also by the first profile with darkening
Face template is matched, and when needing the both of which to match, just confirms that the match is successful, if both any one of matching lose
Lose, then it fails to match, in this way, while success rate is ensured, also ensure that matching speed and security.
In addition, features described above extraction can use following algorithm to realize：Harris Corner Detection Algorithms, scale invariant feature become
Change, SUSAN Corner Detection Algorithms etc., will not be repeated here.Contours extract in above-mentioned steps 32 can be following algorithm：Suddenly
Husband converts, haar or canny etc..
Alternatively, in above-mentioned steps 31, the most clear area of the facial image is determined, can be real as follows
Apply：The mesh facial image is divided into multiple regions, determines the feature point number in each region in the multiple region, is selected
Take most clear area described in one group of most conduct of feature point number.
Wherein, in above-mentioned multiple regions each region size can equal or part it is equal.
Alternatively, between above-mentioned steps 101 and above-mentioned steps 103, can also comprise the following steps：
Image enhancement processing is carried out to the facial image；
It is described to be matched the facial image with the darkening face template, including：
The facial image after image enhancement processing is matched with the darkening face template.
Wherein, above-mentioned image enhancement processing may include but be not limited only to：Image denoising is (for example, wavelet transformation carries out image
Denoising), image restoration (for example, Wiener filtering), noctovision enhancing algorithm (for example, histogram equalization, gray scale stretching etc.),
After image enhancement processing is carried out to facial image, the quality of facial image can get a promotion to a certain extent.
Alternatively, before above-mentioned steps carry out image enhancement processing to the facial image, following step can also be included
Suddenly：
Image quality evaluation is carried out to the facial image, image quality evaluation values are obtained, in described image quality evaluation
When value is less than predetermined quality threshold, image enhancement processing is carried out to the facial image.
Wherein, above-mentioned predetermined quality threshold can voluntarily be set or system default by user, and first facial image can be carried out
Image quality evaluation, an image quality evaluation values are obtained, the quality of the facial image is judged by the image quality evaluation values
It is good or bad, when image quality evaluation values are more than or equal to predetermined quality threshold, it is believed that quality of human face image is good, is scheming
When being less than predetermined quality threshold as quality evaluation value, it is believed that quality of human face image is poor, and then, image can be carried out to facial image
Enhancing is handled.
Wherein, it is above-mentioned that image quality evaluation is carried out to the facial image, it can implement as follows；
Image quality evaluation is carried out to facial image using at least one image quality evaluation index, so as to obtain image
Quality evaluation value.
In specific matching, when evaluating facial image, multiple images quality evaluation index, each image matter can be included
Measure evaluation index and also correspond to a weight, in this way, when each image quality evaluation index carries out image quality evaluation to image,
An evaluation result is can obtain, finally, is weighted, also just obtains final image quality evaluation values.Picture quality is commented
Valency index may include but be not limited only to：Average, standard deviation, entropy, definition, signal to noise ratio etc..
It should be noted that due to when use single evaluation index is evaluated picture quality, there is certain limitation
Property, therefore, picture quality can be evaluated using multiple images quality evaluation index, certainly, picture quality is evaluated
When, not image quality evaluation index is The more the better, because image quality evaluation index is more, the meter of image quality assessment process
It is higher to calculate complexity, it is better also to may not be certain image quality evaluation effect, therefore, higher situation is being required to image quality evaluation
Under, picture quality can be evaluated using 2~10 image quality evaluation indexs.Specifically, image quality evaluation is chosen to refer to
Target number and which index, according to depending on specific implementation situation.Certainly, specifically scene selection picture quality must be also combined to comment
Valency index, carry out carrying out the image quality index of image quality evaluation selection under dark situation under image quality evaluation and bright ring border
Can be different.
Alternatively, in the case of not high to image quality evaluation required precision, an image quality evaluation index can be used
Evaluated, for example, carrying out image quality evaluation values to pending image with entropy, it is believed that entropy is bigger, then illustrates picture quality
It is better, on the contrary, entropy is smaller, then illustrate that picture quality is poorer.
Alternatively, in the case of higher to image quality evaluation required precision, multiple images quality evaluation can be used
Index is evaluated image, and when multiple images quality evaluation index carries out image quality evaluation to image, it is more that this can be set
The weight of each image quality evaluation index in individual image quality evaluation index, can obtain multiple images quality evaluation value, according to
The plurality of image quality evaluation values and its corresponding weight can obtain final image quality evaluation values, for example, three image matter
Measuring evaluation index is respectively：A indexs, B indexs and C indexs, A weight is a1, and B weight is a2, and C weight is a3, is used
A, when B and C carries out image quality evaluation to a certain image, image quality evaluation values corresponding to A are b1, picture quality corresponding to B
Evaluation of estimate is b2, and image quality evaluation values corresponding to C are b3, then, last image quality evaluation values=a1b1+a2b2+
a3b3.Under normal circumstances, image quality evaluation values are bigger, illustrate that picture quality is better.
104th, when the match is successful for the facial image and the darkening face template, it is unlocked operation.
Wherein, when the match is successful with darkening face template for facial image, operation can be unlocked, in facial image and
Darkening face template, it fails to match, then user can be prompted to re-start recognition of face.It is above-mentioned to be unlocked operation, can be with
Lower at least one situation：Put out for example, mobile terminal is under screen state, unblock operation can light screen, and enter movement
The homepage of terminal, or specified page；Mobile terminal is under bright screen state, and unblock operation can be, into mobile terminal
Homepage, or specified page；The unblock page of a certain application of mobile terminal, unblock operation can complete unblock, enter
The page after unblock, for example, mobile terminal may be at paying the page, unblock operation can be paid.Above-mentioned specific page
Face can be following at least one：The page of some application, or, the page that user voluntarily specifies.
As can be seen that the solution lock control method described in the embodiment of the present invention, under noctovision environment, obtains face figure
Picture, darkening processing is carried out to default face template, obtains darkening face template, by facial image with darkening face template progress
Match somebody with somebody, when the match is successful with darkening face template for facial image, be unlocked operation, it is right it is thus possible under noctovision environment
Face template carries out darkening processing, reduces the quality of face template so that it is between the facial image under noctovision environment
Matching value lifted, therefore, recognition of face efficiency can be lifted.
Consistent with the abovely, referring to Fig. 2, being a kind of embodiment stream for solving lock control method provided in an embodiment of the present invention
Journey schematic diagram.Solution lock control method described in the present embodiment, it may include following steps：
201st, under noctovision environment, target environment parameter is obtained.
202nd, target acquisition parameters corresponding with the target environment parameter are determined.
203rd, face is shot according to the target acquisition parameters, obtains facial image.
204th, darkening processing is carried out to default face template, obtains darkening face template.
205th, the facial image is matched with the darkening face template.
206th, when the match is successful for the facial image and the darkening face template, it is unlocked operation.
Wherein, the specific descriptions of above-mentioned steps 201- steps 206 can refer to pair of the solution lock control method described by Fig. 1 C
Step is answered, will not be repeated here.
As can be seen that in the embodiment of the present invention under noctovision environment, target environment parameter is obtained, it is determined that and target environment
Target acquisition parameters corresponding to parameter, face is shot according to target acquisition parameters, obtains facial image, to presetting face
Template carries out darkening processing, obtains darkening face template, facial image is matched with darkening face template, in facial image
When the match is successful with darkening face template, operation is unlocked, it is thus possible under noctovision environment, face template is carried out
Darkening processing, reduce the quality of face template so that its matching value between the facial image under noctovision environment is able to
Lifting, therefore, can lift recognition of face efficiency.
Referring to Fig. 3, Fig. 3 is a kind of mobile terminal provided in an embodiment of the present invention, including：Application processor AP and storage
Device；And one or more programs, one or more of programs are stored in the memory, and it is configured to by institute
AP execution is stated, described program includes being used for the instruction for performing following steps：
Under noctovision environment, facial image is obtained；
Darkening processing is carried out to default face template, obtains darkening face template；
The facial image is matched with the darkening face template；
When the match is successful for the facial image and the darkening face template, operation is unlocked.
In a possible example, described program also includes being used for the instruction for performing following steps：
Obtain current environment brightness；
It is determined that corresponding with the current environment brightness first darkens parameter；
In terms of described pair of default face template carries out darkening processing, described program includes being used for the finger for performing following steps
Order：
Darkening processing is carried out to the default face template according to the described first darkening parameter.
In a possible example, in terms of described pair of default face template carries out darkening processing, described program includes
For performing the instruction of following steps：
Image segmentation is carried out to the facial image, obtains human face region image；
Determine the histogram of the human face region image；
Determine the second darkening parameter corresponding to the histogram；
Darkening processing is carried out to the default face template according to the described second darkening parameter.
In a possible example, described program also includes being used for the instruction for performing following steps：
Image enhancement processing is carried out to the facial image；
The facial image is matched into aspect with the darkening face template described, described program is included for holding
The instruction of row following steps：
The facial image after image enhancement processing is matched with the darkening face template.
In a possible example, described program also includes being used for the instruction for performing following steps：
Obtain target environment parameter；
It is determined that target acquisition parameters corresponding with the target environment parameter；
In terms of the acquisition facial image, described program includes being used for the instruction for performing following steps：
Face is shot according to the target acquisition parameters, obtains the facial image.
Fig. 4 A are referred to, Fig. 4 A are a kind of structural representations for solution lock control device that the present embodiment provides.The solution lock control
Device processed includes first acquisition unit 401, darkens processing unit 402, matching unit 403 and unlocking unit 404, wherein,
First acquisition unit 401, under noctovision environment, obtaining facial image；
Processing unit 402 is darkened, for carrying out darkening processing to default face template, obtains darkening face template；
Matching unit 403, for the facial image to be matched with the darkening face template；
Unlocking unit 404, for the facial image with it is described darkening face template the match is successful when, be unlocked behaviour
Make.
Alternatively, such as Fig. 4 B, the modification structures of solution lock control devices of Fig. 4 B described by Fig. 4 A, it is compared with Fig. 4 A
Compared with may also include：The determining unit 406 of second acquisition unit 405 and first, it is specific as follows：
Second acquisition unit 405, for obtaining current environment brightness；
First determining unit 406, for determining that corresponding with the current environment brightness first darkens parameter；
In terms of described pair of default face template carries out darkening processing, the darkening processing unit 402 is specifically used for：
Darkening processing is carried out to the default face template according to the described first darkening parameter.
Alternatively, if Fig. 4 C, Fig. 4 C are the specific thin of the darkening processing unit 402 of the solution lock control device described by Fig. 4 A
Nodule structure, the darkening processing unit 402 may include：Split module 4021, determining module 4022 and darken processing module 4023,
It is specific as follows:
Split module 4021, for carrying out image segmentation to the facial image, obtain human face region image；
Determining module 4022, for determining the histogram of the human face region image；Determine corresponding to the histogram
Two darken parameter；
Processing module 4023 is darkened, for being carried out according to the described second darkening parameter to the default face template at darkening
Reason.
Alternatively, such as Fig. 4 D, the modification structures of solution lock control devices of Fig. 4 D described by Fig. 4 A, it is compared with Fig. 4 A
Compared with may also include：Image enhancing unit 407, it is specific as follows：
Image enhancing unit 407, for carrying out image enhancement processing to the facial image；
It is described by the facial image with it is described darkening face template matched in terms of, the matching unit 403 has
Body is used for：
The facial image after image enhancement processing is matched with the darkening face template.
Alternatively, such as Fig. 4 E, the modification structures of solution lock control devices of Fig. 4 E described by Fig. 4 A, it is compared with Fig. 4 A
Compared with may also include：3rd acquiring unit 408 and the second determining unit 409, it is specific as follows：
3rd acquiring unit 408, for obtaining target environment parameter；
Second determining unit 409, for determining target acquisition parameters corresponding with the target environment parameter；
In terms of the acquisition facial image, the first acquisition unit 401 is specifically used for：
Face is shot according to the target acquisition parameters, obtains the facial image.
As can be seen that the solution lock control device described in the embodiment of the present invention, under noctovision environment, obtains face figure
Picture, darkening processing is carried out to default face template, obtains darkening face template, by facial image with darkening face template progress
Match somebody with somebody, when the match is successful with darkening face template for facial image, be unlocked operation, it is right it is thus possible under noctovision environment
Face template carries out darkening processing, reduces the quality of face template so that it is between the facial image under noctovision environment
Matching value lifted, therefore, recognition of face efficiency can be lifted.
It is understood that the function of each program module of the solution lock control device of the present embodiment can be real according to the above method
The method specific implementation in example is applied, its specific implementation process is referred to the associated description of above method embodiment, herein no longer
Repeat.
The embodiment of the present invention additionally provides another mobile terminal, as shown in figure 5, for convenience of description, illustrate only with
The related part of the embodiment of the present invention, particular technique details do not disclose, refer to present invention method part.The movement
Terminal can be to include mobile phone, tablet personal computer, PDA (Personal Digital Assistant, personal digital assistant), POS
Any terminal device such as (Point of Sales, point-of-sale terminal), vehicle-mounted computer, so that mobile terminal is mobile phone as an example：
Fig. 5 is illustrated that the block diagram of the part-structure of the mobile phone related to mobile terminal provided in an embodiment of the present invention.Ginseng
Fig. 5 is examined, mobile phone includes：Radio frequency (Radio Frequency, RF) circuit 910, memory 920, input block 930, sensor
950th, voicefrequency circuit 960, Wireless Fidelity (Wireless Fidelity, WiFi) module 970, application processor AP980 and
The grade part of power supply 990.It will be understood by those skilled in the art that the handset structure shown in Fig. 5 does not form the restriction to mobile phone,
It can include than illustrating more or less parts, either combine some parts or different parts arrangement.
Each component parts of mobile phone is specifically introduced with reference to Fig. 5：
Input block 930 can be used for the numeral or character information for receiving input, and produce with the user of mobile phone set with
And the key signals input that function control is relevant.Specifically, input block 930 may include touching display screen 933, face identification device
931 and other input equipments 932.Face identification device 931 can refer to said structure, and concrete structure composition can refer to above-mentioned retouch
State, do not repeat excessively herein.Input block 930 can also include other input equipments 932.Specifically, other input equipments 932
Physical button, function key (such as volume control button, switch key etc.), trace ball, mouse, operation can be included but is not limited to
One or more in bar etc..
Wherein, the AP980, for performing following steps：
Under noctovision environment, facial image is obtained；
Darkening processing is carried out to default face template, obtains darkening face template；
The facial image is matched with the darkening face template；
When the match is successful for the facial image and the darkening face template, operation is unlocked.
AP980 is the control centre of mobile phone, using various interfaces and the various pieces of connection whole mobile phone, passes through fortune
Row performs the software program and/or module being stored in memory 920, and calls the data being stored in memory 920,
The various functions and processing data of mobile phone are performed, so as to carry out integral monitoring to mobile phone.Optionally, AP980 may include one or
Multiple processing units, the processing unit can be artificial intelligent chip, quantum chip；Preferably, AP980 can integrate application processor
And modem processor, wherein, application processor mainly handles operating system, user interface and application program etc., modulatedemodulate
Processor is adjusted mainly to handle radio communication.It is understood that above-mentioned modem processor can not also be integrated into AP980
In.
In addition, memory 920 can include high-speed random access memory, nonvolatile memory, example can also be included
Such as at least one disk memory, flush memory device or other volatile solid-state parts.
RF circuits 910 can be used for the reception and transmission of information.Generally, RF circuits 910 include but is not limited to antenna, at least one
Individual amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition,
RF circuits 910 can also be communicated by radio communication with network and other equipment.Above-mentioned radio communication can use any communication
Standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile
Communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code division it is more
Location (Code Division Multiple Access, CDMA), WCDMA (Wideband Code Division
Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), Email, Short Message Service
(Short Messaging Service, SMS) etc..
Mobile phone may also include at least one sensor 950, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include environmental sensor and proximity transducer, wherein, environmental sensor can be according to the bright of ambient light
Secretly adjust the brightness of touching display screen, proximity transducer can close touching display screen and/or the back of the body when mobile phone is moved in one's ear
Light.As one kind of motion sensor, accelerometer sensor can detect in all directions the size of (generally three axles) acceleration,
Size and the direction of gravity are can detect that when static, application (such as horizontal/vertical screen switching, related trip available for identification mobile phone posture
Play, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；The gyro that can also configure as mobile phone
The other sensors such as instrument, barometer, hygrometer, thermometer, infrared ray sensor, will not be repeated here.
Voicefrequency circuit 960, loudspeaker 961, microphone 962 can provide the COBBAIF between user and mobile phone.Audio-frequency electric
Electric signal after the voice data received conversion can be transferred to loudspeaker 961, sound is converted to by loudspeaker 961 by road 960
Signal plays；On the other hand, the voice signal of collection is converted to electric signal by microphone 962, is turned after being received by voicefrequency circuit 960
It is changed to voice data, then after voice data is played into AP980 processing, through RF circuits 910 to be sent to such as another mobile phone, or
Voice data is played to memory 920 further to handle.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user's transceiver electronicses postal by WiFi module 970
Part, browse webpage and access streaming video etc., it has provided the user wireless broadband internet and accessed.Although Fig. 5 is shown
WiFi module 970, but it is understood that, it is simultaneously not belonging to must be configured into for mobile phone, can not change as needed completely
Become in the essential scope of invention and omit.
Mobile phone also includes the power supply 990 (such as battery) to all parts power supply, it is preferred that power supply can pass through power supply pipe
Reason system and AP980 are logically contiguous, so as to realize the work(such as management charging, electric discharge and power managed by power-supply management system
Energy.
Although being not shown, mobile phone can also include camera, bluetooth module etc., will not be repeated here.
In embodiment shown in earlier figures 1C or Fig. 2, each step method flow can based on the mobile phone structure realize.
In embodiment shown in earlier figures 3, Fig. 4 A~Fig. 4 E, each unit function can based on the mobile phone structure realize.
The embodiment of the present invention also provides a kind of computer-readable storage medium, wherein, the computer-readable storage medium is stored for electricity
The computer program that subdata exchanges, it is any as described in above-mentioned embodiment of the method that the computer program make it that computer performs
A kind of part or all of step for solving lock control method.
The embodiment of the present invention also provides a kind of computer program product, and the computer program product includes storing calculating
The non-transient computer-readable recording medium of machine program, the computer program are operable to make computer perform side as described above
The part or all of step of any solution lock control method described in method embodiment.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because
According to the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, and involved action and module are not necessarily of the invention
It is necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed device, can be by another way
Realize.For example, device embodiment described above is only schematical, such as the division of the unit, it is only one kind
Division of logic function, can there is an other dividing mode when actually realizing, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored, or not perform.Another, shown or discussed is mutual
Coupling direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of software program module.
If the integrated unit is realized in the form of software program module and is used as independent production marketing or use
When, it can be stored in a computer-readable access to memory.Based on such understanding, technical scheme substantially or
Person say the part to be contributed to prior art or the technical scheme all or part can in the form of software product body
Reveal and, the computer software product is stored in a memory, including some instructions are causing a computer equipment
(can be personal computer, server or network equipment etc.) performs all or part of each embodiment methods described of the present invention
Step.And foregoing memory includes：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable memory, memory
It can include：Flash disk, read-only storage (English：Read-Only Memory, referred to as：ROM), random access device (English：
Random Access Memory, referred to as：RAM), disk or CD etc..
The embodiment of the present invention is described in detail above, specific case used herein to the principle of the present invention and
Embodiment is set forth, and the explanation of above example is only intended to help the method and its core concept for understanding the present invention；
Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, can in specific embodiments and applications
There is change part, in summary, this specification content should not be construed as limiting the invention.
Claims (14)
- A kind of 1. mobile terminal, it is characterised in that including application processor AP, and the recognition of face dress being connected with the AP Put, wherein,The face identification device, under noctovision environment, obtaining facial image；The AP, for carrying out darkening processing to default face template, obtain darkening face template；By the facial image and institute Darkening face template is stated to be matched；And the facial image with it is described darkening face template the match is successful when, solved Lock operation.
- 2. mobile terminal according to claim 1, it is characterised in that the mobile terminal also includes：Ambient light sensor, for obtaining current environment brightness；The AP, parameter is darkened also particularly useful for determination corresponding with the current environment brightness first；In terms of described pair of default face template carries out darkening processing, the AP is specifically used for：Darkening processing is carried out to the default face template according to the described first darkening parameter.
- 3. mobile terminal according to claim 1, it is characterised in that carry out darkening processing in described pair of default face template Aspect, the AP are specifically used for：Image segmentation is carried out to the facial image, obtains human face region image；Determine the histogram of the human face region image；Determine the second darkening parameter corresponding to the histogram；Darkening processing is carried out to the default face template according to the described second darkening parameter.
- 4. according to the mobile terminal described in any one of claims 1 to 3, it is characterised in that the AP also particularly useful for：Image enhancement processing is carried out to the facial image；It is described by the facial image with it is described darkening face template matched in terms of, the AP is specifically used for：The facial image after image enhancement processing is matched with the darkening face template.
- 5. according to the mobile terminal described in any one of Claims 1-4, it is characterised in that the mobile terminal also includes：Environmental sensor, for obtaining target environment parameter；The AP also particularly useful for：It is determined that target acquisition parameters corresponding with the target environment parameter；In terms of the acquisition facial image, the face identification device is specifically used for：Face is shot according to the target acquisition parameters, obtains the facial image.
- 6. one kind solution lock control method, it is characterised in that applied to including application processor AP, and the people being connected with the AP The mobile terminal of face identification device, methods described include：The face identification device obtains facial image under noctovision environment；The AP carries out darkening processing to default face template, obtains darkening face template；By the facial image with it is described dark Change face template to be matched；And the facial image with it is described darkening face template the match is successful when, be unlocked behaviour Make.
- 7. one kind solution lock control method, it is characterised in that including：Under noctovision environment, facial image is obtained；Darkening processing is carried out to default face template, obtains darkening face template；The facial image is matched with the darkening face template；When the match is successful for the facial image and the darkening face template, operation is unlocked.
- 8. according to the method for claim 7, it is characterised in that methods described also includes：Obtain current environment brightness；It is determined that corresponding with the current environment brightness first darkens parameter；Described pair of default face template carries out darkening processing, including：Darkening processing is carried out to the default face template according to the described first darkening parameter.
- 9. according to the method for claim 7, it is characterised in that described pair of default face template carries out darkening processing, including：Image segmentation is carried out to the facial image, obtains human face region image；Determine the histogram of the human face region image；Determine the second darkening parameter corresponding to the histogram；Darkening processing is carried out to the default face template according to the described second darkening parameter.
- 10. according to the method described in any one of claim 7 to 9, it is characterised in that methods described also includes：Image enhancement processing is carried out to the facial image；It is described to be matched the facial image with the darkening face template, including：The facial image after image enhancement processing is matched with the darkening face template.
- 11. according to the method described in any one of claim 7 to 11, it is characterised in that methods described also includes：Obtain target environment parameter；It is determined that target acquisition parameters corresponding with the target environment parameter；The acquisition facial image, including：Face is shot according to the target acquisition parameters, obtains the facial image.
- 12. one kind solution lock control device, it is characterised in that including：First acquisition unit, under noctovision environment, obtaining facial image；Processing unit is darkened, for carrying out darkening processing to default face template, obtains darkening face template；Matching unit, for the facial image to be matched with the darkening face template；Unlocking unit, for the facial image with it is described darkening face template the match is successful when, be unlocked operation.
- A kind of 13. mobile terminal, it is characterised in that including：Application processor AP and memory；And one or more programs, One or more of programs are stored in the memory, and are configured to be performed by the AP, and described program includes Instruction for such as any one of claim 7-11 methods.
- A kind of 14. computer-readable recording medium, it is characterised in that it is used to store computer program, wherein, the computer Program causes computer to perform the method as described in claim any one of 7-11.
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| CN201710890225.2A CN107679570A (en) | 2017-09-27 | 2017-09-27 | Solve lock control method and Related product |
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| CN109543628A (en) * | 2018-11-27 | 2019-03-29 | 北京旷视科技有限公司 | A kind of face unlock, bottom library input method, device and electronic equipment |
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