CN105988580A - Screen control method and device of mobile terminal - Google Patents
Screen control method and device of mobile terminal Download PDFInfo
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- CN105988580A CN105988580A CN201510211725.XA CN201510211725A CN105988580A CN 105988580 A CN105988580 A CN 105988580A CN 201510211725 A CN201510211725 A CN 201510211725A CN 105988580 A CN105988580 A CN 105988580A
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Abstract
The embodiment of the invention provides a screen control method and device of a mobile terminal. The method comprises the following steps: determining that the mobile terminal is under a communication state; detecting whether a distance between the mobile terminal under the communication state and a target object is smaller than a preset threshold value or not; when the distance between the mobile terminal under the communication state and the target object is smaller than the preset threshold value, identifying whether the image, which is collected by the started front-facing camera of the mobile terminal, of the target object is the image of a preset object or not; and if the image of the target image is the image of the preset object, closing the screen of the mobile terminal. A misoperation can be avoided by the embodiment, and control accuracy is high.
Description
Technical field
The present embodiments relate to communication technical field, particularly relate to the screen control side of a kind of mobile terminal
Method and device.
Background technology
Along with developing rapidly of mobile terminal, the kind of mobile terminal is more and more abundanter, and function is the most more come
The most powerful, provide the user many conditions easily.Mobile terminal had become as people life and
Requisite means of communication in work, user is to the requirement of the experience of mobile terminal the most increasingly
High.
At present, giant-screen, the intelligent mobile terminal of capacitance touch screen are increasingly liked by users
Liking, it has independent operating system, and powerful practicality is high, and user can install application voluntarily
The program such as software, game carries out function expansion, it is possible to by WiFi (Wireless-Fidelity,
Wireless Fidelity) to get online without being tethered to a cable, this kind of mobile terminal makes people play in object for appreciation, see a film, browse photograph
There is during sheet higher experience.But giant-screen more takes electricity, and due to the characteristic of capacitance plate touch
Often cause maloperation, be especially easy to imprudence when conversing and touch screen and cause call
Hang up.
In prior art, it is typically the screen of turning-off mobile terminal when conversing for the problems referred to above
Curtain, this kind of mode is possible not only to make electricity saving of mobile terminal, and can also avoid face in communication process
The maloperation that portion touches screen and causes.
But, it is currently the most to carry out conversing with really by detection mobile terminal in aforesaid way
The fixed screen whether wanting turning-off mobile terminal, but middle user may be not intended to screen in some scenarios
Curtain is closed, such as, need to check the scene of air time in communication process as user.Therefore, above-mentioned side
The screen of mobile terminal is simply closed by formula blindly, thus causes the precise control of this kind of mode
Property poor, the operation of user is affected bigger.
Summary of the invention
The embodiment of the present invention provides screen control method and the device of a kind of mobile terminal, existing in order to solve
The precise control of mode is poor, the problem bigger on the operation impact of user.
The embodiment of the present invention provides the screen control method of a kind of mobile terminal, including:
Determine that mobile terminal is in talking state；
Whether detection is in the distance between described mobile terminal and the destination object of talking state less than presetting
Threshold value；
When distance between described mobile terminal and described destination object is less than predetermined threshold value, identifies and open
Whether the image of the described destination object that the front-facing camera of dynamic described mobile terminal is gathered is default right
The image of elephant；
If presetting the image of object, then close the screen of described mobile terminal.
The embodiment of the present invention provides the screen control device of a kind of mobile terminal, including:
State determining module, is used for determining that mobile terminal is in talking state；
Distance detection module, is between described mobile terminal and the destination object of talking state for detection
Distance whether less than predetermined threshold value；
Picture recognition module, for the distance between described mobile terminal and described destination object less than pre-
If during threshold value, identify the described destination object that the front-facing camera of the described mobile terminal having been turned on is gathered
Image be whether the image presetting object；
Module closed by screen, is default for identifying the image of described destination object at described identification module
During the image of object, close the screen of described mobile terminal.
The screen control method of the mobile terminal that the embodiment of the present invention provides and device, mobile whole detecting
When end is in talking state, the front-facing camera starting this mobile terminal gathers the image of destination object, and
When the distance detected between mobile terminal and destination object is less than predetermined threshold value, identify destination object
Whether image is the image presetting object, if presetting the image of object, the then screen of turning-off mobile terminal.
Carry out image acquisition by front-facing camera for destination object, therefore mobile terminal and destination object it
Between distance less than during predetermined threshold value not such as prior art only by detection mobile terminal currently the most just
Carrying out conversing to determine whether to the screen of turning-off mobile terminal, the most direct turning-off mobile terminal
Screen, but determine really need close time just execution shutoff operation such that it is able to avoid maloperation,
Precise control is higher.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of steps of the screen control method of a kind of mobile terminal of the embodiment of the present invention one；
Fig. 2 is the flow chart of steps of the screen control method of a kind of mobile terminal of the embodiment of the present invention two；
Fig. 3 is the structured flowchart of the screen control device of a kind of mobile terminal of the embodiment of the present invention three；
Fig. 4 is the structured flowchart of the screen control device of a kind of mobile terminal of the embodiment of the present invention four.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Embodiment one
With reference to Fig. 1, it is shown that the step of the screen control method of a kind of mobile terminal of the embodiment of the present invention one
Rapid flow chart.
The screen control method of the mobile terminal of the present embodiment may comprise steps of:
Step 101, determines that mobile terminal is in talking state.
The screen of this mobile terminal is controlled by the present embodiment when mobile terminal is in talking state, from
And avoid in communication process, mobile terminal being carried out maloperation, affect communication process, therefore determine shifting
After dynamic terminal is in talking state, perform following each step.Wherein, mobile terminal is in talking state and is
Refer to that mobile terminal connects state in the call after conversing.
Step 102, the distance that detection is between the mobile terminal of talking state and destination object is the least
In predetermined threshold value.
In the present embodiment, to being in the mobile terminal of talking state, according to this mobile terminal and destination object
Between the situation of distance the screen of this mobile terminal is controlled.Therefore, determining at mobile terminal
After talking state, whether the distance between detection mobile terminal and destination object is less than presetting threshold further
Value, in order to determine the need for the screen of mobile terminal is controlled according to this distance.
Step 103, when the distance between mobile terminal and destination object is less than predetermined threshold value, has identified
Whether the image of the destination object that the front-facing camera of the mobile terminal started is gathered is the figure presetting object
Picture.
The front-facing camera of mobile terminal is typically when running and needing the application using this photographic head just can open
Dynamic, such as when using the Self-timer of camera, startup front-facing camera is autodyned, and current skill
In art when mobile terminal is in talking state, its front-facing camera is to close.In order to ensure screen
The accuracy controlled, gathers the figure of destination object by the front-facing camera starting mobile terminal in the present embodiment
Picture, in order to the follow-up image according to this destination object determines whether really to need the screen of turning-off mobile terminal.
For starting the mode of front-facing camera, will be described in detail in following embodiment two.
When distance between mobile terminal and destination object is less than predetermined threshold value, the most likely can illustrate
Encounter the screen of mobile terminal by mistake thus cause maloperation, the front-facing camera institute now identification being had been turned on
Whether the image of the destination object gathered is the image presetting object, to determine whether turning-off mobile terminal
Screen.
Step 104, if presetting the image of object, the then screen of turning-off mobile terminal.
If the image of destination object is the image presetting object, then illustrate that destination object now is really
Near the object (such as human body ear) of mobile terminal screen during user's communication, and it is not that other are right
As near mobile terminal screen, therefore in order to avoid affecting conversed owing to touching screen by mistake in the case of this kind
Journey, by the screen of turning-off mobile terminal, after closedown, mobile terminal will not respond the behaviour of the touch-control to screen
Make.If the image of destination object is not the image presetting object, then illustrate that destination object now may
It is other objects near mobile terminal screen, the screen of mobile terminal therefore in the case of this kind, will be kept for opening
Opening state, mobile terminal will proceed to respond to the touch control operation to screen.
In the embodiment of the present invention, carry out image acquisition by front-facing camera for destination object, therefore exist
Distance between mobile terminal and destination object less than predetermined threshold value time not if prior art is only by inspection
Survey mobile terminal and currently the most carry out conversing to determine whether to the screen of turning-off mobile terminal, immediately
The screen of direct turning-off mobile terminal blindly, but just perform to close behaviour when determining and really needing to close
Make such that it is able to avoiding maloperation, precise control is higher.
Embodiment two
With reference to Fig. 2, it is shown that the step of the screen control method of a kind of mobile terminal of the embodiment of the present invention two
Rapid flow chart.
The screen control method of the mobile terminal of the present embodiment may comprise steps of:
Step 201, determines that mobile terminal is in talking state.
The present embodiment can detect whether mobile terminal is in talking state in real time, it is also possible to according to presetting
Whether time interval detection mobile terminal is in talking state (such as inferior every detection one in 0.1 second), right
This is not any limitation as.After determining that mobile terminal is in talking state, perform following each step.Wherein,
Whether detection mobile terminal being in the process of talking state, those skilled in the art can be according to reality
Experience selects any suitable detection mode, and this is not any limitation as by the present embodiment.
Step 202, the distance that detection is between the mobile terminal of talking state and destination object is the least
In predetermined threshold value.(if i.e. distance between mobile terminal and destination object is less than predetermined threshold value), then hold
Row step 203；If not (i.e. distance between mobile terminal and destination object is more than or equal to predetermined threshold value),
Perform step 206.
In the present embodiment, when mobile terminal is in talking state, will detection mobile terminal and destination object
Between distance whether less than predetermined threshold value.In the present embodiment, mobile terminal and target can be detected in real time
Distance between object, it is also possible to according between prefixed time interval detection mobile terminal and destination object
Distance (such as inferior every detection one in 0.1 second), is not any limitation as this.Detection process can be
Mobile terminal is just switched on starting detection when call enters talking state.
Wherein it is possible to carry out distance detection by the infrared detection function of mobile terminal, therefore mobile whole
When end is just switched on call entrance talking state, will generate the instruction of infrared detection, operating system is receiving
After this instruction, send instructions to the infrared detection module (such as infrared sensor) in system, infrared detection
Module can respond this instruction and automatically perform to detect the operation of the distance between mobile terminal and destination object.
For the detailed process of infrared detection, those skilled in the art carry out relevant treatment according to practical experience,
The present embodiment is no longer discussed in detail at this.Certainly, those skilled in the art can also according to practical experience also
The distance between mobile terminal and destination object can be detected in the way of using other detecting distance, this
This is not any limitation as by embodiment.
Distance between the mobile terminal detected and destination object is compared with predetermined threshold value, with really
Whether determine the distance between mobile terminal and destination object less than predetermined threshold value.Wherein, for predetermined threshold value
Concrete numerical value the present embodiment be not any limitation as, those skilled in the art can be according to historical empirical data
It is configured, it is also possible to be configured according to the result of simulation experiment, it is also possible to according to existing relevant mode
The result of Correlative data analysis is configured by type, substantially the most easily can touch with destination object
The screen of mobile terminal and predetermined threshold value is set, the such as distance between mobile terminal and destination object is little
In 8 centimetres time, destination object easily touches the screen of mobile terminal, then predetermined threshold value is set to 8 lis
Rice；When distance between mobile terminal and destination object is less than 5 centimetres, destination object easily touches shifting
The screen of dynamic terminal, then be set to 5 centimetres by predetermined threshold value, etc..
Step 203, when the distance between mobile terminal and destination object is less than predetermined threshold value, has identified
Whether the image of the destination object that the front-facing camera of the mobile terminal started is gathered is the figure presetting object
Picture.If the image of destination object is the image presetting object, then perform step 204；Otherwise, step is performed
Rapid 206.
In the present embodiment, for being in the mobile terminal of talking state, can automatically start this mobile terminal
Front-facing camera the destination object in screen front is carried out image acquisition, the image after collection can preserve
To the locally stored module of mobile terminal, use for follow-up identification image.
Preferably, (move eventually when the present embodiment can be in talking state mobile terminal being detected
When end is just switched on call entrance talking state), the front-facing camera automatically starting mobile terminal gathers target pair
The image of elephant.When detecting that mobile terminal is just switched on call entrance talking state, generation is started preposition
The instruction of photographic head, operating system, after receiving this instruction, sends instructions to the photographic head in system
Module, camera module can respond this instruction and automatically start front-facing camera, and this front-facing camera will be
Running background.
Preferably, the present embodiment can also determine according to the distance between mobile terminal and destination object open
The time point of dynamic front-facing camera.If be detected that the distance between mobile terminal and destination object is less than pre-
If threshold value, then illustrate now to cause maloperation owing to imprudence touches screen, need shifting
The screen of dynamic terminal is controlled, and therefore, mobile terminal and target can also detected in the present embodiment
When distance between object is less than predetermined threshold value, identify that the front-facing camera of the mobile terminal having been turned on is adopted
Before whether the image of the destination object of collection is the image presetting object, automatically start the preposition of mobile terminal
The image of camera collection destination object.Similar to above, detect mobile terminal and destination object it
Between distance less than predetermined threshold value time, will generate start front-facing camera instruction, operating system receive
After this instruction, sending instructions to the camera module in system, camera module can respond this and refer to
Order starts front-facing camera automatically.This kind of mode needs to be controlled the screen of mobile terminal determining
Time when predetermined threshold value (distance between mobile terminal and destination object less than) restart front-facing camera,
Compared to above-mentioned detecting that mobile terminal is just switched on starting front-facing camera when call enters talking state
Mode, it is possible to avoid also running front-facing camera, further when need not the screen controlling mobile terminal
Reduce resource utilization, and the effect of power saving can be reached.
Certainly, the present embodiment can also start the front-facing camera of mobile terminal, example at other times point
As, little to the distance between mobile terminal and destination object after talking state can being entered being just switched on call
Time point between predetermined threshold value starts the front-facing camera of mobile terminal, and the present embodiment is to this and is not added with
To limit.
If the distance detected in step 202. between mobile terminal and destination object is less than presetting threshold
Value, then illustrate now to cause maloperation owing to imprudence touches screen, it is therefore desirable to shifting
The screen of dynamic terminal is controlled.But, the screen of mobile terminal is held by the present embodiment the most blindly
Row shutoff operation, but need whether the image identifying destination object further is the image presetting object,
Determine whether the situation for really wanting turning-off mobile terminal screen, it is to avoid owing to other objects are near screen
Curtain also performs shutoff operation and causes closedown mistake.
Preferably due to be to be controlled for screen to mobile terminal in communication process, conversing
In journey, the screen of mobile terminal is proximate to human body ear, therefore can determine above-mentioned default object for people
Body ear, thus improve the accuracy of control further.Can be with training in advance human body ear in the present embodiment
Whether grader, using the image of this grader identification destination object is the image of human body ear.
Preferably, the present embodiment can use the human body ear classification that AdaBoost Algorithm for Training obtains
Device.Adaboost is a kind of iterative algorithm, and its core concept is different for the training of same training set
Grader (Weak Classifier), then gets up these weak classifier set, constitutes one higher final point
Class device (strong classifier).Its algorithm itself realizes by changing data distribution, and it is according to instruction every time
Practice the classification of each sample among collection the most correct, and the accuracy rate of the general classification of last time, determine
The weights of each sample.Give sub classification device by the new data set revising weights to be trained, finally
The grader obtained will be trained finally to merge, as last Decision Classfication device, final is strong every time
Grader is the weighted average of each Weak Classifier.
In the present embodiment, for human body ear, human body ear classification can be carried out based on Haar-like feature
The training of device.Haar-like feature is computer vision field one feature description operator.Haar-like at present
Feature can be divided into following three classes: linear character, edge feature, some feature (central feature), is combined into
Feature templates.There are white and two kinds of rectangles of black in feature templates, and the eigenvalue defining this template is white
Color rectangular pixels sum deducts the difference of black rectangle pixel sum.Haar-like eigenvalue reflects image
Grey scale change situation.Such as: some features of face simply can be described by rectangular characteristic, such as: eye
Eyeball is deeper than cheek color, and bridge of the nose both sides are deeper than bridge of the nose color, and face is deeper etc. than ambient color.
Preferably, the present embodiment can also use the Haar-like feature of extension, the Haar-like feature of extension
Referring to diagonal feature, the calculating process for this feature template is same as described above, the heaviest at this
Multiple discussion.
The strong classifier that AdaBoost trains out has the threshold value of correspondence, in the training process, to sample
Image carries out Haar-like feature detection, obtains the Haar-like eigenvalue of sample image, by sample image
The threshold value of Haar-like eigenvalue and strong classifier compare, if Haar-like eigenvalue was more than should
The threshold value of grader, then for there is human body ear feature, otherwise this grader in the classification results of this grader
Classification results for there is not human body ear feature.In the training process the threshold value of strong classifier is adjusted
Whole, to ensure that the accuracy of detection reaches to preset accuracy (such as 90%, 95% etc.).Such as, for sample
This collection, if the accuracy of strong classifier detection is 80% after this detection, then reduces this strong classifier
Threshold value, again detects above-mentioned sample set, repeats said process, until the accuracy of detection
Till reaching to preset accuracy such that it is able to get rid of a large amount of doubtful non-human ear characteristic, only leave human ear characteristic
Participate in subsequent classification, improve accuracy and the detection speed of strong classifier detection.
Preferably, in the detection of reality, only still it is difficult to ensure that the correct of detection by a strong classifier
Rate, therefore, can train multiple strong classifier, ultimately form the level that accuracy is higher in the present embodiment
Connection strong classifier.During subsequent classification, one group of grader cascaded is used to detect, further
Improve the accuracy of detection.
At training after the human body ear grader of one group of cascade, i.e. can utilize it that front-facing camera is adopted
The image of the destination object of collection is identified.Preferably, in the present embodiment, identify the image of destination object
It is whether that the process of the image of human body ear can include following sub-step:
Sub-step a, carries out pretreatment to the image of destination object.
First read the image of destination object, then this image is carried out pretreatment.Wherein, pretreatment can
To include the process of filtering interfering, noise, process of correction geometric distortion etc., for specifically processing
Journey, those skilled in the art carry out relevant treatment according to practical experience, and the present embodiment is the most detailed at this
Thin discussion.Image is carried out pretreatment and can improve the signal to noise ratio of image, the detectability of Enhanced feature,
And then prominent human body ear feature.
Sub-step b, carries out Haar-like feature detection to pretreated image, obtains pretreated
The Haar-like eigenvalue of image.
In the present embodiment, detect according to Haar-like feature, calculate pretreated image
Haar-like eigenvalue, the process that calculates is with reference to the associated description during above-mentioned training.Preferably,
The present embodiment can calculate pretreated image to use the Haar-like feature detection mode of extension
Extension Haar-like eigenvalue, this is not any limitation as by the present embodiment at this.
Sub-step c, by Haar-like eigenvalue sequentially with the human body ear grader of default one group of cascade
Threshold value compare, obtain the classification results of human body ear grader.
As above, training in advance goes out human body ear grader (strong classifier) of one group of cascade, by above-mentioned calculating
Haar-like eigenvalue sequentially threshold value with each human body ear grader compare.For a human body
For ear grader, if Haar-like eigenvalue is more than the threshold value of this grader, then this grader
Classification results is human body ear feature, and otherwise the classification results of this grader is non-human ear feature.
Sub-step d, if all the classification results of human body ear grader is human body ear feature, the most really
Set the goal the image that image is human body ear of object.
During the grader using cascade is sequentially classified, if the classification results of certain grader is
Non-human ear feature, the most no longer threshold value with other grader compare, and determine destination object
Image be not the image of human body ear；If all the classification results of human body ear grader is human body ear
Piece feature, it is determined that the image of destination object is the image of human body ear.
The identification of the image to destination object can be completed by said process, and use above-mentioned
AdaBoost Algorithm for Training grader, and use the mode that is identified of Haar-like feature can make knowledge
Other result is more accurate.
Step 204, if the image of destination object is the image presetting object, then the screen of turning-off mobile terminal
Curtain.
If identifying the image of destination object in step 203 for presetting object (i.e. human body ear)
Image, then illustrate really to need turning-off mobile terminal screen, therefore gets final product the screen of turning-off mobile terminal.
Therefore, when the image identifying destination object is the image presetting object, the instruction closing screen will be generated,
Operating system, after receiving this instruction, sends instructions to the screen processing module in system, at screen
Reason module can respond the screen of this instruction turning-off mobile terminal, the driver of screen out of service, after
Touch control operation in continuous no longer response screen.
Preferably, in the present embodiment after the screen of turning-off mobile terminal, it is also possible to be further turned off moving
The front-facing camera of dynamic terminal, stops gathering the image of destination object.Because the screen at turning-off mobile terminal
After Mu, will temporarily be no longer necessary to gather the image of destination object, thus closing off front-facing camera can keep away
Exempt from the unnecessary operation of photographic head, save resource and electric energy.
Step 205, detects that the distance between mobile terminal and destination object is more than or equal to predetermined threshold value
Time, open the screen of mobile terminal.
In communication process, user likely during answering by mobile terminal away from ear, such as exist
Want during answering to check the air time etc., then mobile terminal is checked away from ear in the case of this kind.Cause
This, can also continue to detect between mobile terminal and destination object after the screen of turning-off mobile terminal
Distance, if the distance detected between mobile terminal and destination object is more than or equal to predetermined threshold value, then opens
Open the screen of mobile terminal, in order to user checks the content of display on screen.Therefore detecting that movement is eventually
When distance between end and destination object is more than or equal to predetermined threshold value, the instruction opening screen will be generated,
Operating system, after receiving this instruction, sends instructions to the screen processing module in system, at screen
Reason module can respond this instruction open mobile terminal screen, the driver of the screen that brings into operation, after
The continuous touch control operation got final product in response screen.Subsequent execution step 207.
Preferably, because after user has checked related content, may continue to place mobile terminal
Near ear, answer call, after therefore opening the screen of mobile terminal, said process will be repeated,
Referring in particular to step 202～the associated description of step 205, the present embodiment does not repeats them here.Need
Illustrate, if in step 204 after the screen of turning-off mobile terminal, be further turned off mobile
The front-facing camera of terminal, then after this step 205 opens the screen of mobile terminal, since it is desired that continue
The continuous screen to mobile terminal is controlled, and therefore will be again turned on the front-facing camera of mobile terminal.Excellent
Selection of land, can start the preposition of mobile terminal and takes the photograph in the present embodiment after the screen just opening mobile terminal
As head gathers the image of destination object；Or, in the distance detected between mobile terminal and destination object
During less than predetermined threshold value, identify the figure of the destination object of the front-facing camera collection of the mobile terminal having been turned on
Before seeming the no image for presetting object, the front-facing camera starting mobile terminal gathers destination object
Image.Wherein, due to when the distance detected between mobile terminal and destination object is less than predetermined threshold value
Need to identify the image of destination object, the most first start front-facing camera and gather destination object
Image.The most above-mentioned " before " refers to that the distance detecting between mobile terminal and destination object is little
After predetermined threshold value with identify destination object image before time period, mobile terminal in this time period
And the distance between destination object may keep constant, it is also possible to more and more less.
Step 206, the screen keeping mobile terminal is opening.
If the distance detected in step 202. between mobile terminal and destination object is more than or equal to pre-
If threshold value, then the screen that continuation keeps mobile terminal is opening.If detected in step 203
The image going out destination object is not the image presetting object, by the screen continuing to keep mobile terminal is equally
Opening.Subsequent execution step 207.
Step 207, detects when mobile terminal exits talking state, the preposition shooting of turning-off mobile terminal
Head, stops gathering the image of destination object.
The present embodiment can also detect whether mobile terminal exits logical after mobile terminal enters talking state
The most whether speech phase, kill-call, if mobile terminal exits talking state, the most no longer to mobile terminal
Screen perform control process when being in talking state, it is no longer necessary to the image of destination object is adopted
Collection, therefore gets final product the front-facing camera of turning-off mobile terminal, stops gathering the image of destination object.
In the present embodiment, can detect whether mobile terminal exits talking state in real time, it is also possible to according in advance
If whether time interval detection mobile terminal exits talking state (such as inferior every detection one in 0.1 second),
This is not any limitation as.
The present embodiment ensure that in communication process, the screen of mobile terminal controlled accurately,
Avoid causing maloperation due to the interference of other objects.
For aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as a series of dynamic
Combining, but those skilled in the art should know, the present invention is not by described sequence of movement
Limiting, because according to the present invention, some step can use other orders or carry out simultaneously.Secondly,
Those skilled in the art also should know, embodiment described in this description belongs to preferred embodiment,
Necessary to involved action and the module not necessarily present invention.
Embodiment three
With reference to Fig. 3, it is shown that the knot of the screen control device of a kind of mobile terminal of the embodiment of the present invention three
Structure block diagram.
The screen control device of the mobile terminal of the present embodiment can include with lower module:
State determining module 301, is used for determining that mobile terminal is in talking state；
Distance detection module 302, is between the mobile terminal of talking state and destination object for detection
Distance whether less than predetermined threshold value；
Picture recognition module 303, for the distance between mobile terminal and destination object less than presetting threshold
During value, identify that whether the image of the destination object that the front-facing camera of mobile terminal having been turned on gathered is
Preset the image of object；
Module 304 closed by screen, for identifying the image of destination object at identification module for presetting object
Image time, the screen of turning-off mobile terminal.
In the embodiment of the present invention when detecting that mobile terminal is in talking state, start this mobile terminal
Front-facing camera gather destination object image, and detect between mobile terminal and destination object away from
From during less than predetermined threshold value, identify whether the image of destination object is the image presetting object, if presetting
The image of object, the then screen of turning-off mobile terminal.Figure is carried out for destination object by front-facing camera
As gathering, therefore the distance between mobile terminal and destination object is not the most existing less than during predetermined threshold value
Technology currently the most carries out conversing to determine whether to close to move eventually only by detection mobile terminal
The screen of end, the most blindly screen of direct turning-off mobile terminal, but determine really need to close time
Just perform shutoff operation such that it is able to avoiding maloperation, precise control is higher.
Embodiment four
With reference to Fig. 4, it is shown that the knot of the screen control device of a kind of mobile terminal of the embodiment of the present invention four
Structure block diagram.
The screen control device of the mobile terminal of the present embodiment can include with lower module:
State determining module 401, is used for determining that mobile terminal is in talking state；
Distance detection module 402, for be between the mobile terminal of talking state and destination object away from
From whether less than predetermined threshold value；
Shooting starts module 403, for when detecting that mobile terminal is in talking state, starts mobile
The front-facing camera of terminal gathers the image of destination object；Or, mobile terminal and target pair detected
When distance between as is less than predetermined threshold value, identify what the front-facing camera of the mobile terminal having been turned on gathered
Before whether the image of destination object is the image presetting object, the front-facing camera starting mobile terminal is adopted
The image of collection destination object；
Picture recognition module 404, for the distance between mobile terminal and destination object less than presetting threshold
During value, the image of the destination object that the front-facing camera of the described mobile terminal that identification has been turned on is gathered is
The no image for presetting object；
Module 405 closed by screen, for identifying the image of destination object at identification module for presetting object
Image time, the screen of turning-off mobile terminal；
Module 406 is closed in shooting, after close the screen of module turning-off mobile terminal at screen, closes
Close the front-facing camera of mobile terminal, stop gathering the image of destination object；In the case of this kind, shooting is opened
Dynamic model block, is additionally operable to, after screen opening module opens the screen of described mobile terminal, start mobile terminal
Front-facing camera gather destination object image；Or, detect mobile terminal and destination object it
Between distance less than predetermined threshold value time, identify the target that the front-facing camera of mobile terminal having been turned on gathers
Before whether the image of object is the image presetting object, the front-facing camera starting mobile terminal gathers institute
State the image of destination object.
Screen opening module 407, after close the screen of module turning-off mobile terminal at screen, inspection
When measuring the distance between mobile terminal and destination object more than or equal to predetermined threshold value, open mobile terminal
Screen.
Preferably, module is closed in shooting, is additionally operable to detect when mobile terminal exits talking state, closes
The front-facing camera of mobile terminal, stops gathering the image of destination object.
Preferably, default object is human body ear；Picture recognition module includes following submodule:
Process submodule, for the image of destination object is carried out pretreatment；
Detection sub-module, for pretreated image is carried out Haar-like feature detection, obtains pre-place
The Haar-like eigenvalue of the image after reason；
Classification submodule, for by Haar-like eigenvalue sequentially with the human body ear of default one group of cascade
The threshold value of grader compares, and obtains the classification results of human body ear grader；
Determine submodule, be used for when the classification results of whole human body ear graders is human body ear feature,
Determine the image that image is human body ear of destination object.
Wherein, human body ear grader is the grader using AdaBoost Algorithm for Training to obtain；In training
During human body ear grader, the threshold value of human body ear grader is adjusted, so that human body ear
The detection accuracy of piece grader reaches to preset accuracy.
The present embodiment ensure that during passing through, the screen of mobile terminal controlled accurately,
Avoid causing maloperation due to the interference of other objects.
For device embodiment, due to itself and embodiment of the method basic simlarity, so the comparison described
Simply, relevant part sees the part of embodiment of the method and illustrates.
Device embodiment described above is only schematically, wherein said illustrates as separating component
Unit can be or may not be physically separate, the parts shown as unit can be or
Person may not be physical location, i.e. may be located at a place, or can also be distributed to multiple network
On unit.Some or all of module therein can be selected according to the actual needs to realize the present embodiment
The purpose of scheme.Those of ordinary skill in the art are not in the case of paying performing creative labour, the most permissible
Understand and implement.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive each reality
The mode of executing can add the mode of required general hardware platform by software and realize, naturally it is also possible to by firmly
Part.Based on such understanding, the portion that prior art is contributed by technique scheme the most in other words
Dividing and can embody with the form of software product, this computer software product can be stored in computer can
Read in storage medium, such as ROM/RAM, magnetic disc, CD etc., including some instructions with so that one
Computer equipment (can be personal computer, server, or the network equipment etc.) performs each to be implemented
The method described in some part of example or embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, rather than to it
Limit；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or
Person carries out equivalent to wherein portion of techniques feature；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (14)
1. the screen control method of a mobile terminal, it is characterised in that including:
Determine that mobile terminal is in talking state；
Whether detection is in the distance between described mobile terminal and the destination object of talking state less than presetting
Threshold value；
When distance between described mobile terminal and described destination object is less than predetermined threshold value, identifies and open
Whether the image of the described destination object that the front-facing camera of dynamic described mobile terminal is gathered is default right
The image of elephant；
If presetting the image of object, then close the screen of described mobile terminal.
Method the most according to claim 1, it is characterised in that at the described mobile terminal of described closedown
Screen step after, also include:
Detect that the distance between described mobile terminal and described destination object is more than or equal to described default threshold
During value, open the screen of described mobile terminal.
Method the most according to claim 2, it is characterised in that
After the step of the screen of the described mobile terminal of described closedown, also include:
Close the front-facing camera of described mobile terminal, stop gathering the image of described destination object；
After the step of the screen of the described mobile terminal of described unlatching, also include:
After the screen opening described mobile terminal, the front-facing camera starting described mobile terminal gathers institute
State the image of destination object；
Or,
When the distance detected between described mobile terminal and described destination object is less than predetermined threshold value, know
Whether the image of the described destination object of the front-facing camera collection of the described mobile terminal not having been turned on is pre-
If before the image of object, the front-facing camera starting described mobile terminal gathers the figure of described destination object
Picture.
Method the most according to claim 1, it is characterised in that also include:
Detect when described mobile terminal exits talking state, close the front-facing camera of described mobile terminal,
Stop gathering the image of destination object.
Method the most according to claim 1, it is characterised in that the preposition shooting of described mobile terminal
Head starts in the following manner:
When detecting that mobile terminal is in talking state, the front-facing camera starting described mobile terminal is adopted
The image of collection destination object；
Or,
When the distance detected between described mobile terminal and described destination object is less than predetermined threshold value, know
Whether the image of the described destination object of the front-facing camera collection of the described mobile terminal not having been turned on is pre-
If before the image of object, the front-facing camera starting described mobile terminal gathers the image of destination object.
Method the most according to claim 1, it is characterised in that described default object is human body ear；
Whether the image of the described destination object of described identification is that the step of the image presetting object includes:
The image of described destination object is carried out pretreatment；
Pretreated image is carried out Haar-like feature detection, obtains described pretreated image
Haar-like eigenvalue；
By described Haar-like eigenvalue sequentially with the threshold value of the human body ear grader of default one group of cascade
Comparing, obtain the classification results of described human body ear grader, wherein, described human body ear is classified
Device is the grader using AdaBoost Algorithm for Training to obtain；
If all the classification results of human body ear grader is human body ear feature, it is determined that described target
The image of object is the image of human body ear.
Method the most according to claim 6, it is characterised in that at training human body ear grader
During, the threshold value of described human body ear grader is adjusted, so that described human body ear grader
Detection accuracy reach preset accuracy.
8. the screen control device of a mobile terminal, it is characterised in that including:
State determining module, is used for determining that mobile terminal is in talking state；
Distance detection module, is between described mobile terminal and the destination object of talking state for detection
Distance whether less than predetermined threshold value；
Picture recognition module, for the distance between described mobile terminal and described destination object less than pre-
If during threshold value, identify the described destination object that the front-facing camera of the described mobile terminal having been turned on is gathered
Image be whether the image presetting object；
Module closed by screen, is default for identifying the image of described destination object at described identification module
During the image of object, close the screen of described mobile terminal.
Device the most according to claim 8, it is characterised in that also include:
Screen opening module, after closing, at described screen, the screen that module closes described mobile terminal,
Detect that the distance between described mobile terminal and described destination object is more than or equal to described predetermined threshold value
Time, open the screen of described mobile terminal.
Device the most according to claim 9, it is characterised in that also include:
Module is closed in shooting, after closing, at described screen, the screen that module closes described mobile terminal,
Close the front-facing camera of described mobile terminal, stop gathering the image of described destination object；
Shooting starts module, after the screen opening described mobile terminal in described screen opening module,
The front-facing camera starting described mobile terminal gathers the image of described destination object；Or, detecting
When distance between described mobile terminal and described destination object is less than predetermined threshold value, identify the institute having been turned on
Whether the image of the described destination object stating the front-facing camera collection of mobile terminal is the image presetting object
Before, the front-facing camera starting described mobile terminal gathers the image of described destination object.
11. devices according to claim 8, it is characterised in that also include:
Module is closed in shooting, is used for detecting when described mobile terminal exits talking state, closes described shifting
The front-facing camera of dynamic terminal, stops gathering the image of destination object.
12. devices according to claim 8, it is characterised in that also include:
Shooting starts module, for when detecting that mobile terminal is in talking state, starts described movement
The front-facing camera of terminal gathers the image of destination object；Or, described mobile terminal and institute detected
When stating distance between destination object less than predetermined threshold value, identify the preposition of the described mobile terminal that has been turned on
Before whether the image of the described destination object of camera collection is the image presetting object, start described shifting
The front-facing camera of dynamic terminal gathers the image of destination object.
13. devices according to claim 8, it is characterised in that described default object is human body ear
Piece；Described picture recognition module includes:
Process submodule, for the image of described destination object is carried out pretreatment；
Detection sub-module, for pretreated image is carried out Haar-like feature detection, obtains described
The Haar-like eigenvalue of pretreated image；
Classification submodule, for by described Haar-like eigenvalue sequentially with the human body of default one group of cascade
The threshold value of ear grader compares, and obtains the classification results of described human body ear grader, wherein,
Described human body ear grader is the grader using AdaBoost Algorithm for Training to obtain；
Determine submodule, be used for when the classification results of whole human body ear graders is human body ear feature,
Determine the image that image is human body ear of described destination object.
14. devices according to claim 13, it is characterised in that at training human body ear grader
During, the threshold value of described human body ear grader is adjusted, so that the classification of described human body ear
The detection accuracy of device reaches to preset accuracy.
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| CN201510211725.XA CN105988580A (en) | 2015-04-28 | 2015-04-28 | Screen control method and device of mobile terminal |
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| CN201510211725.XA CN105988580A (en) | 2015-04-28 | 2015-04-28 | Screen control method and device of mobile terminal |
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