CN103391366B - Mobile terminal and identification method thereof - Google Patents

Mobile terminal and identification method thereof Download PDF

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Publication number
CN103391366B
CN103391366B CN201310301311.7A CN201310301311A CN103391366B CN 103391366 B CN103391366 B CN 103391366B CN 201310301311 A CN201310301311 A CN 201310301311A CN 103391366 B CN103391366 B CN 103391366B
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China
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mobile terminal
distance
image
facing camera
threshold
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CN201310301311.7A
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Chinese (zh)
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CN103391366A (en
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沈安
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上海华勤通讯技术有限公司
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Publication of CN103391366A publication Critical patent/CN103391366A/en
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Abstract

The invention provides a mobile terminal and an identification method thereof. The identification method of the mobile terminal comprises the following steps of S1, detecting the distance between the mobile terminal and a barrier which is in front of a mobile terminal screen, enabling the distance to be served as first distance, collecting a barrier image through a front camera of the mobile terminal, judging whether the first distance is less than a first threshold value or not and whether the image comprises human faces or not, entering into S2 if yes and repeatedly executing the S1 if not and S2, awakening the mobile terminal screen and entering into a preview mode of the front camera. The mobile terminal has the advantages of overcoming defects that users need to carry along small mirrors and the utilization is troublesome in the existing look dressing up method, being simple in operation and high in flexibility, being convenient for the users to dress up at any time and providing better usage experience for the users.

Description

Mobile terminal and recognition methods thereof

Technical field

The present invention relates to a kind of mobile device, particularly the recognition methods of a kind of mobile terminal and this mobile terminal.

Background technology

Along with the development of electronic information technology, all kinds of mobile terminal, such as mobile phone, become the requisite person-to-person communication instrument that people are the most frequently used, the function of existing mobile phone gets more and more, this makes people recognize, mobile terminal is not only a media of information, and its differentiation slowly becomes the multifunction electronic life terminal that people live indispensable.

In life now, most woman can put a small mirror inside the handbag carried with, to facilitate the dressing checking oneself at any time, but the small mirror carried with is general all very fragile, do not note a little making small mirror break up or break into pieces, and then bring potential safety hazard, and small mirror can take certain space, and carrying with neither be very convenient.

Summary of the invention

The technical problem to be solved in the present invention utilizes the small mirror carried with to check this mode of dressing of oneself to overcome people in prior art, bring certain potential safety hazard and carry the defect of inconvenience, provide a kind of and there is mobile terminal and the recognition methods thereof that simple, convenient user arranges the dressing of oneself at any time.

The present invention solves above-mentioned technical problem by following technical proposals:

The invention provides a kind of recognition methods of mobile terminal, its feature is, it comprises the following steps:

S 1, detect this mobile terminal and this mobile terminal screen front barrier between distance as the first distance, the front-facing camera of this mobile terminal gathers the image of this barrier, judge whether the first distance is less than a first threshold, whether this image comprises face, if so, then enters step S for this 2, if not, then repeated execution of steps S 1;

S 2, wake up this mobile terminal screen and enter the preview mode of this front-facing camera.

The collection of the image of the detection that this programme is adjusted the distance and barrier is without tandem, as long as above-mentioned function can be realized, and judging that the image that measured Distance geometry gathers meets the preview function that Rule of judgment just can use front-facing camera, make user can arrange the dressing of oneself facing to the screen of mobile terminal.This programme needs to carry with a small mirror, uses the shortcomings such as trouble when avoiding existing arrangement dressing, have simple to operate, flexibility is high, facilitate user arrange the dressing of oneself at any time and provide the advantage of better experience for user.

Preferably, step S 1comprise:

S 11, detect this first distance, and judge that whether this first distance is less than this first threshold, if so, then enter step S 12, if not, then repeated execution of steps S 11;

S 12, this front-facing camera gathers the image of this barrier, and judges whether this image comprises face, if so, then enters step S 2, if not, then repeated execution of steps S 11.

The detection that this programme was adjusted the distance before this when judging that measured distance meets Rule of judgment, just enable front-facing camera, utilize the collection of front-facing camera realization to the image of barrier, and the preview function of front-facing camera is just opened when gathered image meets Rule of judgment, make user can arrange the dressing of oneself facing to the screen of mobile terminal.This programme detect this first distance meet be less than this first threshold time, just carry out work without the need to enabling this front-facing camera again, decrease the CPU(central processing unit of this mobile terminal running background) workload, have and detect accurately, saving program, reduce the advantage taking resource.

Preferably, step S 1comprise:

S 11, when not waking this screen up, this front-facing camera gathers the image of this barrier, and judges whether this image comprises face, if so, then enters step S 12, if not, then repeated execution of steps S 11;

S 12, detect this first distance, and judge that whether this first distance is less than this first threshold, if so, then enter step S 2, if not, then repeated execution of steps S 11.

This programme utilized the collection of front-facing camera realization to the image of barrier before this, and start to adjust the distance when gathered image meets Rule of judgment and detect, just opening the preview function of front-facing camera when judging that measured distance meets Rule of judgment, making user can arrange the dressing of oneself facing to the screen of mobile terminal.This programme, when this image detected does not comprise face, just without the need to have detected of implementing again to adjust the distance, decreases the workload of the CPU of this mobile terminal running background, has to detect accurately, saving program, reduce the advantage taking resource.

Preferably, this mobile terminal stores the face database that comprises multiple facial contour template, judges that the step whether this image comprises face is:

S j, Threshold segmentation is carried out to extract the profile of this barrier to this barrier in this image;

S k, judge whether this profile matches with the facial contour template in this face database.

Preferably, this Threshold segmentation adopts Image binarizing algorithm.

The present embodiment detects this image by Image binarizing algorithm and whether comprises face, uses this Image binarizing algorithm to have the advantages such as fast response time, processing time short and simplify processes step compared to other Face datection algorithm.

Preferably, step S 1in, detect the temperature of the shelter contacted with this mobile terminal, judge whether the first distance is less than this first threshold, this image whether comprises face and whether this temperature is greater than a Second Threshold, if so, then enters step S for this 2, if not, then repeated execution of steps S 1.

This programme adds Rule of judgment on the basis of technique scheme, make the recognition methods of this programme more accurate, prevent user from fact not wanting the dressing utilizing this mobile terminal to arrange oneself, but this mobile terminal still enters the situation of the preview mode of this front-facing camera, be unfavorable for intellectuality and the flexibility of this mobile terminal.

Preferably, in step S 1comprise before:

S 0, detect this mobile terminal and whether receive a triggering signal, if so, then enter step S 1, if not, then repeated execution of steps S 0.

This programme passes through in step S 1increase before and detect the step whether mobile terminal receives triggering signal, make mobile terminal maintaining on original function basis, also there is the function preventing user misoperation.When as hand-held in user, the user oriented mobile terminal of display screen and user do not implement any operation to this mobile terminal or are using this mobile terminal, at this moment user is basic just without the need to using the recognition function of mobile terminal to arrange the dressing of oneself, but this mobile terminal is when the image of the Distance geometry collection detected meets Rule of judgment, still the preview mode of front-facing camera is entered, this is not obviously the result that user wants, therefore in order to avoid this drawback, the present embodiment is provided with this step.

Preferably, after detecting this first distance, calculate the duration that this first distance maintains, judge whether the first distance is less than a first threshold, whether this duration reaches one the 3rd threshold value, whether this image comprises face, if so, then enters step S for this 2, if not, then repeated execution of steps S 1.

The present invention also provides a kind of mobile terminal, and its feature is, it comprises a controller, a range sensor and a front-facing camera, and this range sensor and the coplanar setting of this front-facing camera;

This range sensor for detect the screen front of this mobile terminal and this mobile terminal barrier between distance as the first distance;

This front-facing camera is for gathering the image of this barrier;

This controller is used for being less than a first threshold, this image in this first distance and wakes the screen of this mobile terminal when comprising face up and enter the preview mode of this front-facing camera.

Preferably, this controller is used for enabling this front-facing camera when this first distance that this range sensor detects is less than this first threshold, and wakes this screen up when this image that this front-facing camera collects comprises face and enter the preview mode of this front-facing camera.

Preferably, this controller is used for enabling this range sensor when this image that this front-facing camera collects comprises face, and wakes this screen up when this first distance that this range sensor detects is less than this first threshold and enter the preview mode of this front-facing camera.

Preferably, this mobile terminal stores the face database that comprises multiple facial contour template, this controller is used for carrying out Threshold segmentation to extract the profile of this barrier to this barrier in this image, and the facial contour template in this profile and this face database matches, and wake this screen up when this first distance is less than this first threshold and enter the preview mode of this front-facing camera.

Preferably, this Threshold segmentation adopts Image binarizing algorithm.

Preferably, this mobile terminal also comprises a temperature sensor, this temperature sensor is for detecting the temperature of the shelter contacted with this mobile terminal, and this controller is used for being less than this first threshold in this first distance, wake this screen up when this image comprises face and this temperature is greater than a Second Threshold and enter the preview mode of this front-facing camera.

Preferably, this mobile terminal also comprises a detecting unit, and whether this detecting unit receives a triggering signal for detecting this mobile terminal, when receiving this triggering signal, calls this range sensor and this front-facing camera.

Preferably, this mobile terminal also comprises a timer, the duration that this timer maintains for calculating this first distance, this controller is used for being less than a first threshold in this first distance, this duration reaches one the 3rd threshold value, this image wakes this mobile terminal up when comprising face screen enter the preview mode of this front-facing camera.

On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.

Positive progressive effect of the present invention is:

The present invention according to range sensor and front-facing camera with the use of, make controller judging that the first distance is less than first threshold, this image and wakes the screen of this mobile terminal when comprising face up and enter the preview mode of this front-facing camera, need to carry with a small mirror when avoiding existing arrangement dressing, use the shortcomings such as trouble, have simple to operate, flexibility is high, facilitate user arrange the dressing of oneself at any time and provide the advantage of better experience for user.

Accompanying drawing explanation

Fig. 1 is the flow chart of the recognition methods of the mobile terminal of embodiments of the invention 1.

Fig. 2 is the structural representation of the mobile terminal of embodiments of the invention 1.

Fig. 3 is the flow chart of the recognition methods of the mobile terminal of embodiments of the invention 2.

Fig. 4 is the flow chart of the recognition methods of the mobile terminal of embodiments of the invention 4.

Fig. 5 is the structural representation of the mobile terminal of embodiments of the invention 5.

Fig. 6 is the structural representation of the mobile terminal of embodiments of the invention 6.

Embodiment

Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.

Embodiment 1

As shown in Figure 1, the present embodiment provides a kind of recognition methods of mobile terminal, and this recognition methods comprises the following steps:

Step 101, detect this mobile terminal and this mobile terminal screen front barrier between distance as the first distance, the front-facing camera of this mobile terminal gathers the image of this barrier, judge whether this first distance is less than a first threshold (such as 20cm), whether this image comprises face, if, then enter step 102, if not, then repeated execution of steps 101;

Step 102, wake up this mobile terminal screen and enter the preview mode of this front-facing camera.

As shown in Figure 2, the present embodiment also provides a kind of mobile terminal, and it comprises range sensor 1, front-facing camera 2 and a controller 3, and this range sensor 1 and the coplanar setting of this front-facing camera 2;

This range sensor 1 for detect the screen front of this mobile terminal and this mobile terminal barrier between distance as the first distance;

This front-facing camera 2 is for gathering the image of this barrier;

This controller 3 wakes the screen of this mobile terminal up for being less than a first threshold, this image in this first distance and entering the preview mode of this front-facing camera when comprising face.

Wherein, this first threshold is self-defining, and user can adjust the concrete numerical value of this first threshold neatly according to the actual conditions of oneself.

The present embodiment enables out-of-order to this range sensor 1 and this front-facing camera 2, as long as this range sensor 1 and this front-facing camera 2 realize respective function.The recognition methods flow process of the mobile terminal of the present embodiment is simple, the structure of mobile terminal is also simple, there is very high flexibility, a small mirror is carried with without the need to user, user facilitates by this mobile terminal, momentarily arrange the dressing of oneself, improves user to the experience of this mobile terminal.

Embodiment 2

What the recognition methods of the mobile terminal of the present embodiment added this range sensor 1 and this front-facing camera 2 on the basis of embodiment 1 enables order, and as shown in Figure 3, the present embodiment provides a kind of recognition methods of mobile terminal, and this recognition methods comprises the following steps:

Step 201, detect this first distance, and judge whether this first distance is less than this first threshold, if so, then enters step 202, if not, then repeated execution of steps 201;

Step 202, this front-facing camera gather the image of this barrier, and judge whether this image comprises face, if so, then enters step 203, if not, then and repeated execution of steps 201;

Step 203, wake up this mobile terminal screen and enter the preview mode of this front-facing camera.

The mobile terminal of the present embodiment comprises all parts of embodiment 1, this range sensor of the present embodiment is identical with the function of this front-facing camera with this range sensor in embodiment 1 with the function of this front-facing camera, and difference is the function that this controller realizes:

Enable this front-facing camera 2 when this controller 3 is less than this first threshold for this first distance detected at this range sensor 1, and wake this screen up when this image that this front-facing camera 2 collects comprises face and enter the preview mode of this front-facing camera.

The present embodiment is when the first distance that this range sensor 1 detects is less than this first threshold, this controller 3 just controls to enable this front-facing camera 2, as detect at this range sensor 1 this first distance meet be less than this first threshold time, just carry out work without the need to enabling this front-facing camera 2 again, there is the advantage detecting accurately, save program.

Embodiment 3

What the recognition methods of the mobile terminal of the present embodiment added this range sensor 1 and this front-facing camera 2 on the basis of embodiment 1 enables order, but the present embodiment to this range sensor 1 and this front-facing camera 2 to enable order just in time contrary, specific as follows with embodiment 2:

The present embodiment provides a kind of recognition methods of mobile terminal, and this recognition methods comprises the following steps:

Step 301, when not waking this screen up, this front-facing camera gathers the image of this barrier, and judges whether this image comprises face, if so, then enters step 302, if not, then and repeated execution of steps 301;

Step 302, detect this first distance, and judge whether this first distance is less than this first threshold, if so, then enters step 303, if not, then repeated execution of steps 301.

Step 303, wake up this mobile terminal screen and enter the preview mode of this front-facing camera.

The flow chart of this recognition methods of the present embodiment does not just reoffer, and those skilled in the art can imagine the flow chart of the recognition methods the present embodiment according to the flow chart of the recognition methods of embodiment 2.

The mobile terminal of the present embodiment comprises all parts of embodiment 1, this range sensor of the present embodiment is identical with the function of this front-facing camera with this range sensor in embodiment 1 with the function of this front-facing camera, and difference is the function that this controller realizes:

Enable this range sensor 1 when this controller 3 comprises face for this image collected at this front-facing camera 2, and wake this screen up when this first distance that this range sensor 1 detects is less than this first threshold and enter the preview mode of this front-facing camera.

The present embodiment is when this image that this front-facing camera 2 collects comprises face, this controller 3 just controls to enable this range sensor 1, when this image as collected at this front-facing camera 2 does not comprise face, just carry out work without the need to enabling this range sensor 1 again, there is the advantage detecting accurately, save program.

Embodiment 4

Now comparatively ripe to the research of human face detection tech, so the above embodiments 1-3 can select any one detection method existing to detect, whether this image that this front-facing camera 2 collects comprises face, and the present embodiment selects a kind of applicable the present invention from numerous method for detecting human face and have the method for detecting human face of preferably technique effect compared to other method for detecting human face.

In the present embodiment, this mobile terminal stores the face database that comprises multiple facial contour template, and as shown in Figure 4, the recognition methods of the present embodiment comprises the following steps:

Step 401, distance between the barrier detecting the screen front of this mobile terminal and this mobile terminal is as the first distance, the front-facing camera of this mobile terminal gathers the image of this barrier, the controller of this mobile terminal carries out Threshold segmentation to extract the profile of this barrier to this barrier in this image, judge whether this first distance is less than a first threshold (such as 20cm), whether this profile matches with the facial contour template in this face database, if, then enter step 402, if not, then repeated execution of steps 401, wherein, this Threshold segmentation adopts Image binarizing algorithm,

Step 402, wake up this mobile terminal screen and enter the preview mode of this front-facing camera.

The present embodiment also provides a kind of mobile terminal, the mobile terminal of the present embodiment comprises all parts of embodiment 1, this range sensor of the present embodiment is identical with the function of this front-facing camera with this range sensor in embodiment 1 with the function of this front-facing camera, difference is the function that this controller realizes: this controller 3 is for carrying out Threshold segmentation to extract the profile of this barrier to this barrier in this image, and the facial contour template in this profile and this face database matches, and this first distance is waken this screen up when being less than this first threshold and is entered the preview mode of this front-facing camera.

The present embodiment detects this image by Image binarizing algorithm and whether comprises face, uses this Image binarizing algorithm to have the advantages such as fast response time, processing time short and simplify processes step compared to other Face datection algorithm.

Embodiment 5

The present embodiment increases a Rule of judgment on the basis of embodiment 1, make the recognition methods of the present embodiment more accurate, prevent user by mobile terminal as mobile phone is placed on desk, and this mobile terminal faces user, at this moment user does not want the dressing utilizing this mobile terminal arrangement oneself, but this mobile terminal still enters the preview mode of the front-facing camera of this mobile terminal.

We know, user is generally hand-held small mirror when using small mirror to arrange oneself dressing, and user also generally can this mobile terminal hand-held when using the recognition function of mobile terminal, so, as shown in Figure 5, the mobile terminal of the present embodiment sets up a temperature sensor 4 on the basis of embodiment 1, this temperature sensor 4 is for detecting the temperature of the shelter (hand of the user of such as this mobile terminal) contacted with this mobile terminal, this controller 3 is for being less than this first threshold in this first distance, this image comprises and wakes this screen up when face and this temperature are greater than a Second Threshold and the preview mode entering this front-facing camera.

Wherein, this Second Threshold is self-defining, and user can adjust the concrete numerical value of this Second Threshold neatly according to the actual conditions of oneself.

Step 101 in the recognition methods of embodiment 1 is replaced with 101 ' of the present embodiment, step 101 by the recognition methods of the present embodiment ' comprise the following steps:

Distance between the barrier detecting the screen front of this mobile terminal and this mobile terminal is as the first distance, the front-facing camera of this mobile terminal gathers the image of this barrier, this temperature sensor detects the temperature of the shelter contacted with this mobile terminal, judge whether the first distance is less than a first threshold, this image whether comprises face and whether this temperature is greater than a Second Threshold for this, if, then enter step 102, if not, then repeated execution of steps 101 '.

Embodiment 6

Increase by a step before the recognition methods of the present embodiment step 101 in the recognition methods of embodiment 1, this step is: detect this mobile terminal and whether receive a triggering signal, if so, then enter step 101, if not, then repeats this step.

As shown in Figure 6, the present embodiment also provides a kind of mobile terminal, this mobile terminal also comprises a detecting unit 5 on the basis of embodiment 1, whether this detecting unit 5 receives this triggering signal for detecting this mobile terminal, when receiving this triggering signal, call this range sensor 1 and this front-facing camera 2.

Wherein, this triggering signal is the signal that the signal that sends or touch-control touch-screen send that pushes button.Certainly, this button pressed can use power button, can also use the button that user infrequently uses, as volume key.

The present embodiment is by increasing this step, mobile terminal is made not only to have the function of embodiment 1, also there is the function of the misoperation preventing user, as hand-held in user, when the user oriented mobile terminal of display screen and user do not implement any operation to this mobile terminal or are using this mobile terminal, at this moment user is basic just without the need to using the recognition function of mobile terminal to arrange the dressing of oneself, but the image of this front-facing camera collection of Distance geometry that this range sensor detects meets Rule of judgment, this mobile terminal is caused to enter the preview mode of this front-facing camera, this is not obviously the result that user wants, therefore in order to avoid this drawback, the present embodiment is provided with this step.

Embodiment 7

The present embodiment increases a Rule of judgment on the basis of embodiment 1, makes the recognition methods of the present embodiment more accurate.

The mobile terminal of the present embodiment sets up a timer on the basis of embodiment 1, the duration that this timer maintains for calculating this first distance, this controller is used for being less than this first threshold in this first distance, this duration reaches one the 3rd threshold value, this image wakes this mobile terminal up when comprising face screen enter the preview mode of this front-facing camera.

Wherein, the 3rd threshold value is self-defining, and user can adjust the concrete numerical value of the 3rd threshold value neatly according to the actual conditions of oneself.

Step 101 in the recognition methods of embodiment 1 is replaced with 101 ' of the present embodiment, step 101 by the recognition methods of the present embodiment ' comprise the following steps:

Distance between the barrier detecting the screen front of this mobile terminal and this mobile terminal is as the first distance, the front-facing camera of this mobile terminal gathers the image of this barrier, calculate the duration that this first distance maintains, judge whether the first distance is less than a first threshold, whether this duration reaches one the 3rd threshold value, whether this image comprises face for this, if, then enter step 102, if not, then repeated execution of steps 101 '.

Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.

Claims (14)

1. a recognition methods for mobile terminal, is characterized in that, it comprises the following steps:
S 1, detect this mobile terminal and this mobile terminal screen front barrier between distance as the first distance, when not waking screen up, the front-facing camera of this mobile terminal gathers the image of this barrier, judge whether this first distance is less than a first threshold and whether this image comprises face, if so, then step S is entered 2, if not, then repeated execution of steps S 1;
S 2, wake up this mobile terminal screen and enter the preview mode of this front-facing camera;
In step S 1comprise before:
S 0, detect this mobile terminal and whether receive a triggering signal, if so, then enter step S 1, if not, then repeated execution of steps S 0;
Wherein, this triggering signal is press signal that button that user is of little use sends or the signal that touch-control touch-screen sends.
2. recognition methods as claimed in claim 1, is characterized in that, step S 1comprise:
S 11, detect this first distance, and judge that whether this first distance is less than this first threshold, if so, then enter step S 12, if not, then repeated execution of steps S 11;
S 12, this front-facing camera gathers the image of this barrier, and judges whether this image comprises face, if so, then enters step S 2, if not, then repeated execution of steps S 11.
3. recognition methods as claimed in claim 1, is characterized in that, step S 1comprise:
S 11, when not waking this screen up, this front-facing camera gathers the image of this barrier, and judges whether this image comprises face, if so, then enters step S 12, if not, then repeated execution of steps S 11;
S 12, detect this first distance, and judge that whether this first distance is less than this first threshold, if so, then enter step S 2, if not, then repeated execution of steps S 11.
4. as the recognition methods in claim 1-3 as described in any one, it is characterized in that, this mobile terminal stores the face database that comprises multiple facial contour template, judges that the step whether this image comprises face is:
S j, Threshold segmentation is carried out to extract the profile of this barrier to this barrier in this image;
S k, judge whether this profile matches with the facial contour template in this face database.
5. recognition methods as claimed in claim 4, is characterized in that, this Threshold segmentation adopts Image binarizing algorithm.
6. recognition methods as claimed in claim 1, is characterized in that, step S 1in, detect the temperature of the shelter contacted with this mobile terminal, judge whether this first distance is less than this first threshold and whether this image comprises face and whether this temperature is greater than a Second Threshold, if so, then enters step S 2, if not, then repeated execution of steps S 1.
7. recognition methods as claimed in claim 1, it is characterized in that, after detecting this first distance, calculate the duration that this first distance maintains, judge whether this first distance is less than a first threshold and this duration whether reaches one the 3rd threshold value and whether this image comprises face, if so, then step S is entered 2, if not, then repeated execution of steps S 1.
8. a mobile terminal, is characterized in that, it comprises a controller, a range sensor and a front-facing camera, and this range sensor and the coplanar setting of this front-facing camera;
This range sensor for detect the screen front of this mobile terminal and this mobile terminal barrier between distance as the first distance;
When not waking screen up, this front-facing camera is for gathering the image of this barrier;
This controller is used for waking up when this first distance is less than a first threshold and this image comprises face the screen of this mobile terminal and enters the preview mode of this front-facing camera;
This mobile terminal also comprises a detecting unit, and whether this detecting unit receives a triggering signal for detecting this mobile terminal, when receiving this triggering signal, calls this range sensor and this front-facing camera;
Wherein, this triggering signal is press signal that button that user is of little use sends or the signal that touch-control touch-screen sends.
9. mobile terminal as claimed in claim 8, it is characterized in that, this controller is used for enabling this front-facing camera when this first distance that this range sensor detects is less than this first threshold, and wakes this screen up when this image that this front-facing camera collects comprises face and enter the preview mode of this front-facing camera.
10. mobile terminal as claimed in claim 8, it is characterized in that, this controller is used for enabling this range sensor when this image that this front-facing camera collects comprises face, and wakes this screen up when this first distance that this range sensor detects is less than this first threshold and enter the preview mode of this front-facing camera.
11. as the mobile terminal in claim 8-10 as described in any one, it is characterized in that, this mobile terminal stores the face database that comprises multiple facial contour template, this controller is used for carrying out Threshold segmentation to extract the profile of this barrier to this barrier in this image, and the facial contour template in this profile and this face database matches, and wake this screen up when this first distance is less than this first threshold and enter the preview mode of this front-facing camera.
12. mobile terminals as claimed in claim 11, is characterized in that, this Threshold segmentation adopts Image binarizing algorithm.
13. mobile terminals as claimed in claim 8, it is characterized in that, this mobile terminal also comprises a temperature sensor, this temperature sensor is for detecting the temperature of the shelter contacted with this mobile terminal, and this controller is used for being less than this first threshold and this image comprises and wakes this screen up when face and this temperature are greater than a Second Threshold and the preview mode entering this front-facing camera in this first distance.
14. mobile terminals as claimed in claim 8, it is characterized in that, this mobile terminal also comprises a timer, the duration that this timer maintains for calculating this first distance, this controller be used for this first distance be less than a first threshold and this duration reach one the 3rd threshold value and this image comprises face time wake the screen of this mobile terminal up and enter the preview mode of this front-facing camera.
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