CN103412647B - The page display control method of a kind of recognition of face and mobile terminal - Google Patents

The page display control method of a kind of recognition of face and mobile terminal Download PDF

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Publication number
CN103412647B
CN103412647B CN201310350794.XA CN201310350794A CN103412647B CN 103412647 B CN103412647 B CN 103412647B CN 201310350794 A CN201310350794 A CN 201310350794A CN 103412647 B CN103412647 B CN 103412647B
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angle
page
mobile terminal
coordinates
display
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CN201310350794.XA
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CN103412647A (en
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彭飞
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广东欧珀移动通信有限公司
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Publication of CN103412647A publication Critical patent/CN103412647A/en
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Abstract

The page display control method of a kind of recognition of face and mobile terminal, the step of described method includes: carries out Face datection in the camera head acquired image of mobile terminal and extracts the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data;Extracting two centre coordinates, calculate the angle of two lines of centres and page datum line, this page datum line is the virtual line of reference along current page horizontal direction;Judge that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode.The present invention is different from existing gyroscope sensing control method, owing to criterion is the relative angle between user's eyes and mobile terminal, thus user can be avoided to use the impact of the factors such as posture, improve accuracy of judgement degree, bring better experience to user.

Description

The page display control method of a kind of recognition of face and mobile terminal
Technical field
The present invention relates to human-computer interaction technology, particularly relate to page display control method and the mobile terminal of a kind of recognition of face.
Background technology
Current mobile phone etc. with the digital terminal of display screen in order to adapt to the display effect of different application occasion, the transverse screen being typically provided with the display page shows and perpendicular screen display handoff functionality, for instance application video jukebox software needs to carry out the adjustment of image display direction often.The switching of existing horizontal/vertical screen has use G-sensor, and namely gravity sensor controls switching time as detection instrument, also has and is manually gone setting by manual menu.Manually arranging the real demand that can reflect user exactly, but operate relatively cumbersome, intelligence degree is low;G-sensor detection method can realize horizontal/vertical screen and automatically switch; comparatively convenient; but the accuracy of its operation has certain limitation; owing to user uses sight during mobile terminal varied; only rely on the display mode needed for G-sensor detects the direction of terminal and judges user and often can cause erroneous judgement; such as when user lies on one's side handheld device, utilizing traditional G-sensor detection method to tend not to realize the desired display effect of user, Consumer's Experience is perfect not.Some mobile terminal can only adopt and lock, by physical button or virtual key, the method that horizontal/vertical screen show and make up this defect, but this locking means is opposing with the wish automatically switched again and go, the operating procedure of increase user, still facility not.
Summary of the invention
In order to overcome the weak point of the prior art of above-mentioned indication, the present invention provides page display control method and the mobile terminal of a kind of recognition of face, transverse screen to realize the display page shows and the automatic switchover of perpendicular screen display, it is to avoid user uses the impact of the factors such as posture, improves accuracy of judgement degree.
The present invention is achieved by the following technical solutions:
The page display control method of a kind of recognition of face, is applied to the mobile terminal with display screen, and its step includes:
S1, the camera head acquired image of mobile terminal carries out Face datection and extracts the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data;
S2, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
S3, judge that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode.
The Geometric center coordinates that two centre coordinates are two profiles of described human face region or the centre coordinate of two eye pupil core.
Further, described step S2 includes:
S21, the human eye image datas of two are analyzed, it may be judged whether the pupil detected, if so, perform step S22, otherwise terminate current page operation task, control mobile terminal and enter power down mode;
S22, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line.
Wherein, described step S21 judges that being not detected by the pupil refers to the position coordinates judging that the image that N continuous time gathers does not extract two eye pupil core regions, and N is the natural number be more than or equal to 1.
Described step S21 controls mobile terminal entrance power down mode and includes extinguishing display screen.
Further, described step S3 judges that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or the display of perpendicular screen includes: when judging described angle be more than or equal to default angle threshold, current transverse screen display mode is switched to and perpendicular shields display mode;When judging described angle be more than or equal to default angle threshold, current perpendicular screen display mode is switched to transverse screen display mode.
In the present invention, the setting of described default angle threshold ranges for 30 °~60 °.
Present invention also offers a kind of mobile terminal, there is display screen and camera head, including:
Face recognition module, for carrying out Face datection and extracting the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data in camera head acquired image;
Human eye analysis module, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
Judge to perform module, for judging that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode.
It is preferred that the centre coordinate of the Geometric center coordinates that two centre coordinates are two profiles of the human face region of described human eye analysis module extraction or two eye pupil core.
Further, described human eye analysis module includes:
Pupil detection unit, for the human eye image data of two is analyzed, it may be judged whether the pupil detected, if so, then start angle calculation unit, otherwise terminates current page operation task, controls mobile terminal and enters power down mode;
Angle calculation unit, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line.
Compared with prior art, the present invention is according to the camera head of mobile terminal, especially front-facing camera identifies the central point of two in face, and the angle calculating two lines of centres and page datum line judges the angle that active user watches, and the switching anyhow realizing current page shows;It is different from existing gyroscope sensing control method, owing to criterion is the relative angle between user's eyes and mobile terminal, thus user can be avoided to use the impact of the factors such as posture, improve accuracy of judgement degree.On the other hand, when user is watched for a long time, eyes tired and close one's eyes rest time, photographic head is by detecting that user eyes close, and be automatically switched off or suspend video playback that current page runs, picture such as shows at the task, reach to put out the effect of screen power saving, solve that a lot of mobile terminals at present exist because of can not auto sleep or sleep and waste the defect of energy consumption, bring better experience to user.
Accompanying drawing explanation
Accompanying drawing 1 be the page display control method of the recognition of face of an embodiment of the present invention realize schematic flow sheet;
Accompanying drawing 2 is the composition block diagram of the mobile terminal of an embodiment of the present invention.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with drawings and Examples, the invention will be further described.
A kind of page display control method of recognition of face, it is applied to the mobile terminal with display screen and camera head, it is preferred that, camera head is front-facing camera, described mobile terminal includes the intelligent terminal such as smart mobile phone, panel computer, and the step of described method includes:
S1, the camera head acquired image of mobile terminal carries out Face datection and extracts the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data;
S2, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
S3, judge that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode.
In step sl, when opening the page presentation control function of this recognition of face or the video playback of the equipment of unlatching or picture browsing application as user, the front-facing camera of equipment is with an interval timing extraction facial image set, when after photographic head recognition detection to face, the face identified is carried out human eye location, and the position coordinates recording the position coordinates of human eye area, pupil region et al. eye image data.Front-facing camera extracts the eye information of user face according to the interval of time set, until equipment finally exits the operation task of current page or exits the page presentation control function of this recognition of face for terminating.Existing face recognition technology can not only identify the shape of face, and the identification for the face organ such as eyes, nose also can reach to realize precision of the presently claimed invention.
In step s 2, the human eye image data of record extracts two centre coordinates, the Geometric center coordinates that two centre coordinates are two profiles of described human face region or the Geometric center coordinates of two eye pupil core from step S1.Calculating the angle of two lines of centres and page datum line, this page datum line is a virtual line as reference, and its direction is the horizontal direction shown along the current page shown by mobile terminal.Choose the direction of the even being aligned of two in the facial image of camera collection, compare with the page datum line of the current page of display in display screen.
Further, described step S2 includes:
S21, the human eye image datas of two are analyzed, it may be judged whether the pupil detected, if so, perform step S22, otherwise terminate current page operation task, control mobile terminal and enter power down mode;
S22, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line.
Wherein, described step S21 judges that being not detected by the pupil refers to that the image judging N continuous time collection does not extract two eye pupil core data, the i.e. position coordinates in two eye pupil core regions, can reflecting the pupil shape of two by this position coordinates and calculate the centre coordinate of the pupil, wherein N is the natural number be more than or equal to 1.Such as when the human eye image data that double camera head gathers all does not extract the position coordinates in two eye pupil core regions, it is judged that not can recognise that the pupil.Judge whether to extract two eye pupil core data by analyzing, may identify which and in user's certain time, whether be in closed-eye state (as user sleeps rest), when system knowledge judges that user is in closed-eye state, judge that current page operation task terminates, thus exiting current page operation task, such as closing current video and playing application, and control mobile terminal entrance power down mode, including extinguishing display screen, thus avoiding unnecessary energy consumption, for equipment power saving.Only after two eye pupil core data being detected, just perform the angle calculation of two lines of centres.
In step s3, judge that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or the display of perpendicular screen includes: when judging described angle be more than or equal to default angle threshold, current transverse screen display mode is switched to and perpendicular shields display mode;When judging described angle be more than or equal to default angle threshold, current perpendicular screen display mode is switched to transverse screen display mode.Described angle threshold can be user preset or adopt system default value, and its setting ranges for 30 °~60 °.For 45 °, when the angle of two lines of centres and page datum line is more than 45 °, the visual angle of user and current page show and are in a kind of inharmonic state, in order to adapt to the visual angle of user, to current page, such as video playback or picture-browsing window switch to transverse screen and show or perpendicular screen display;When two lines of centres and page datum line angle for during less than 45 degree, the visual angle of user shows that with current page the state being in a kind of relative coordination, the current page show and is suitable for user's use, thus maintains current page display way and do not change.Being applied in reality, user by the display screen of terminal in rotary moving, can change two lines of centres of user and the angle of page datum line, thus switching page display way fast and accurately.
Specifically, as shown in Figure 1, for smart mobile phone, what present invention also offers the page display control method of the recognition of face of a kind of embodiment realizes flow process, and its step includes:
S101, open recognition of face page presentation control function;
S102, smart mobile phone camera head timing carry out the image acquisition of recognition of face;
S103, extract human face region position coordinates go forward side by side pedestrian's eye location;
S104, recorder's eye image data are also analyzed;
S105, judge whether to extract the position coordinates in two eye pupil core regions, if so, perform step S107, otherwise perform step S106;
S106, end current page operation task, extinguish display screen;
S107, two centre coordinates of extraction;
The angle of S108, two lines of centres of calculating and page datum line, this page datum line is the virtual line of reference along current page horizontal direction;
S109, judging that whether described angle is be more than or equal to default angle threshold, if performing step S110, otherwise performing step S111;
S110, to switch current page display way be that transverse screen shows or perpendicular screen display, and returns step S102;
S111, maintenance current page display mode, and return step S102.
Present invention also offers a kind of mobile terminal, there is display screen and camera head, as shown in Figure 2, including:
Face recognition module, for carrying out Face datection and extracting the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data in camera head acquired image;
Human eye analysis module, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
Judge to perform module, for judging that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode.
It is preferred that the centre coordinate of the Geometric center coordinates that two centre coordinates are two profiles of the human face region of described human eye analysis module extraction or two eye pupil core.
Further, described human eye analysis module includes:
Pupil detection unit, for the human eye image data of two is analyzed, it may be judged whether the pupil detected, if so, then start angle calculation unit, otherwise terminates current page operation task, controls mobile terminal and enters power down mode;
Angle calculation unit, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line.
Wherein, described pupil detection unit judges is not detected by pupil data and refers to the position coordinates judging that the image that N continuous time gathers does not extract two eye pupil core regions, and N is the natural number be more than or equal to 1.
Described pupil detection unit controls mobile terminal entrance power down mode and includes extinguishing display screen.
Further, described judge to perform module for judging that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or the display of perpendicular screen includes: for when judging described angle be more than or equal to default angle threshold, current transverse screen display mode is switched to and perpendicular shields display mode;For when judging described angle be more than or equal to default angle threshold, current perpendicular screen display mode being switched to transverse screen display mode.
In the mobile terminal of the present invention, the setting of described default angle threshold ranges for 30 °~60 °, it is preferred that, it is possible to it is set to 45 °.
Above content is in conjunction with concrete optimal way further description made for the present invention, should not assert that specific embodiment of the invention is confined to described above.For those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, be regarded as within the protection domain determined by the claim that the present invention is submitted.

Claims (4)

1. a page display control method for recognition of face, is applied to the mobile terminal with display screen, and its step includes:
S1, the camera head acquired image of mobile terminal carries out Face datection and extracts the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data;
S2, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
S3, judge that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode;
The Geometric center coordinates that two centre coordinates are two profiles of described human face region;
Described step S2 includes:
S21, the human eye image datas of two are analyzed, it may be judged whether the pupil detected, if so, perform step S22, otherwise terminate current page operation task, control mobile terminal and enter power down mode;
S22, two centre coordinates of extraction, calculate the angle of two lines of centres and page datum line;
Described step S21 judges that being not detected by the pupil refers to the position coordinates judging that the image that N continuous time gathers does not extract two eye pupil core regions, and N is the natural number be more than or equal to 1;
Described step S21 controls mobile terminal entrance power down mode and includes extinguishing display screen.
2. the page display control method of recognition of face according to claim 1, it is characterised in that step S3 judges that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or the display of perpendicular screen includes:
When judging described angle be more than or equal to default angle threshold, current transverse screen display mode is switched to perpendicular screen display mode;
When judging described angle be more than or equal to default angle threshold, current perpendicular screen display mode is switched to transverse screen display mode.
3. the page display control method of the recognition of face according to any one of claim 1~2, it is characterised in that: the setting of described default angle threshold ranges for 30 °~60 °.
4. a mobile terminal, has display screen and camera head, it is characterised in that including:
Face recognition module, for carrying out Face datection and extracting the position coordinates of human face region, at the enterprising pedestrian's eye location of human face region, recorder's eye image data in camera head acquired image;
Human eye analysis module, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line, and this page datum line is the virtual line of reference along current page horizontal direction;
Judge to perform module, for judging that whether described angle is be more than or equal to default angle threshold, if then switching current page display way is that transverse screen shows or perpendicular screen display, otherwise maintain current page display mode;
The Geometric center coordinates that two centre coordinates are two profiles of the human face region that described human eye analysis module extracts;
Described human eye analysis module includes:
Pupil detection unit, for the human eye image data of two is analyzed, it may be judged whether the pupil detected, if so, then start angle calculation unit, otherwise terminates current page operation task, controls mobile terminal and enters power down mode;
Angle calculation unit, is used for extracting two centre coordinates, calculates the angle of two lines of centres and page datum line;
Wherein, described pupil detection unit judges is not detected by pupil data and refers to the position coordinates judging that the image that N continuous time gathers does not extract two eye pupil core regions, and N is the natural number be more than or equal to 1;
Described pupil detection unit controls mobile terminal entrance power down mode and includes extinguishing display screen.
CN201310350794.XA 2013-08-13 2013-08-13 The page display control method of a kind of recognition of face and mobile terminal CN103412647B (en)

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