CN103929583A - Method for controlling intelligent terminal and intelligent terminal - Google Patents
Method for controlling intelligent terminal and intelligent terminal Download PDFInfo
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- CN103929583A CN103929583A CN201310014396.0A CN201310014396A CN103929583A CN 103929583 A CN103929583 A CN 103929583A CN 201310014396 A CN201310014396 A CN 201310014396A CN 103929583 A CN103929583 A CN 103929583A
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Abstract
The invention discloses a method for controlling an intelligent terminal. The method for controlling the intelligent terminal comprises the steps that the face of an operator is detected through a front camera of the intelligent terminal when the intelligent terminal moves forwards and backwards; the change of the size of the face is determined according to a detection result in the intelligent terminal movement process and the intelligent terminal is controlled according to the change. The invention further discloses the intelligent terminal. According to the technical scheme, the method is used for controlling the zoom multiple of the camera of the intelligent terminal so that the shooting effect of the intelligent terminal can be improved and zoom operation can be simplified. According to the technical scheme, the method is used for controlling the zoom multiple of content displayed by a display window of the intelligent terminal so that an image, a webpage and the like can be controlled to be magnified or shrunk by one hand.
Description
Technical field
The application relates to intelligent terminal technical field, particularly a kind of method and intelligent terminal of controlling intelligent terminal.
Background technology
At present, most intelligent terminals all dispose camera, and possess optical zoom and/or Digital Zoom function, are below referred to as zoom.
According to prior art, all intelligent terminals all adopt touch-sensitive display in the time doing zoom operation, and the slider bar press...withing one's finger on screen slides, to reach the object of zoom.
Mainly there is following technical problem in above-mentioned prior art:
1, because the profile of intelligent terminal is conventionally less and thinner, and the camera lens of its camera does not have optics anti-trembling function, therefore, need two hands to control intelligent terminal simultaneously and just can make it to keep stable, like this, in taking pictures, be just difficult to free hand to do other operation, and above-mentioned prior art needs on touch-screen, to drag slider bar and carry out zoom with pointing, obviously, this will cause shooting effect greatly to reduce.
2, on touch-screen, drag slider bar from operation real physical device different, cause operation sense not good enough, and its feel is to slide on touch-screen, significantly reduce if sensitivity of touch screen is not good or have on hand sweat will cause manipulating precision.
3, while above-mentioned prior art applied to intelligent terminal taking pictures, must be constantly find a view and zoom between switch, that is: find a view again-> of find a view-> adjusting focal length-> adjusting focal length again, so repeatedly, extremely loaded down with trivial details and effect is bad.
At present, to also have a kind of typical application be for browsing page, picture or document etc. to intelligent terminal.When people are in the time need to zooming in or out the current content of browsing, there are at present two kinds of implementations:
The first scheme is: a hand-held intelligent terminal, to point and use for two of another hand, and the content shown to display window zooms in or out.This scheme needs two hands to operate simultaneously, is not easy to very much operation in riding process.
First scheme is: select zoom function, and press...with one's finger and need the position that zooms in or out, after unclamping finger, the corresponding content in this position is correspondingly zoomed in or out.Although this scheme only needs one-handed performance, its convergent-divergent multiple is normally fixed, and the zooming effect obtaining is not that people are required conventionally.
Visible, a kind of technical scheme of effective control intelligent terminal need to be proposed, to solve the existing above-mentioned technical problem of prior art.
Summary of the invention
The application provides a kind of method and intelligent terminal of controlling intelligent terminal, so that intelligent terminal is realized effectively and being controlled.
A kind of method of controlling intelligent terminal that the application provides, comprising:
In the process moving forward and backward at intelligent terminal, by the front-facing camera of intelligent terminal, operator is carried out to face detection;
Determine the variation of face size in intelligent terminal moving process according to testing result, and according to this variation control intelligent terminal.
Preferably, describedly comprise according to this variation control intelligent terminal: according to the zoom multiple of the post-positioned pick-up head of this variation control intelligent terminal, or, according to the convergent-divergent multiple of the display window displayed content of this variation control intelligent terminal.
Preferably, described face is of a size of: the square root of width, height or the area of face.
Preferably, the described zoom multiple according to the post-positioned pick-up head of this variation control intelligent terminal is:
Determine the zoom multiple of post-positioned pick-up head according to formula Z=K*L/L0*Z0, wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of post-positioned pick-up head zoom;
Z0 is the initial value of focal length;
L0 is the initial value of face size;
L is the currency of face size.
Preferably, the described convergent-divergent multiple according to the display window displayed content of this variation control intelligent terminal is:
Determine the convergent-divergent multiple of displayed content according to formula Z=K*L/L0*Z0, wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of convergent-divergent;
Z0 is the initial value of the convergent-divergent multiple of display window displayed content;
L0 is the initial value of face size;
L is the currency of face size.
A kind of intelligent terminal that the application provides, comprising: front-facing camera, face detection module, application module, control module and controlled module, wherein:
Application module is used for calling described control module and starts each module and start working;
Front-facing camera is for taking the operator of intelligent terminal;
The process of face detection module for moving forward and backward at intelligent terminal, the operator's picture photographing according to front-facing camera carries out face detection to operator, and determine the variation of face size in intelligent terminal moving process according to the testing result of face detection module, control described controlled module according to this variation.
Preferably, described controlled module is: post-positioned pick-up head;
Described face detection module is controlled the zoom multiple of described post-positioned pick-up head according to the variation of face size.
Preferably, described controlled module is: display window;
Described face detection module is controlled the convergent-divergent multiple of described display window displayed content according to the variation of face size.
Preferably, the result that described face detection module carries out face detection is face size, and described face is of a size of: the square root of width, height or the area of face.
Preferably, described intelligent terminal further comprises pretreatment module;
Described pretreatment module for to the captured picture of front-facing camera carry out smoothly, denoising operate.
As seen from the above technical solution, the technical scheme of the control intelligent terminal that the application provides, by moving forward and backward operator in the process of intelligent terminal, front-facing camera by intelligent terminal carries out face detection to operator, and the intelligent terminal obtaining according to detection moves the variation of the face size of front and back, control intelligent terminal, thereby make the operator can be by moving forward and backward the mode of intelligent terminal, reach the object of controlling intelligent terminal.
Brief description of the drawings
Fig. 1 is the composition structural representation of the application's one better intelligent terminal;
Fig. 2 is the method flow schematic diagram that the camera of controlling intelligent terminal in the application's one preferred embodiment carries out zoom.
Embodiment
For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the application is described in further detail.
For solving the problems of the technologies described above, the application proposes a kind of method of controlling intelligent terminal, its main thought is: move forward and backward in the process of intelligent terminal operator, front-facing camera by intelligent terminal carries out face detection to operator, and the variation of the face size of the intelligent terminal obtaining according to detection before and after moving, intelligent terminal is controlled accordingly.
The method of the above-mentioned control intelligent terminal of the application can be widely used in intelligent terminal is realized to various relevant control, and wherein, typical application is exactly: control the zoom multiple of post-positioned pick-up head and the convergent-divergent multiple of display window displayed content.Also be mainly applied as example with these two kinds below and describe, other scenes can be carried out with reference to these two kinds of application.
Based on above-mentioned main thought, the application proposes a kind of contactless zoom operation method based on optics control, its general principle is: move forward and backward in the process of intelligent terminal operator, front-facing camera by intelligent terminal carries out face detection to operator, and the intelligent terminal obtaining according to detection moves the variation of the face size of front and back, control the zoom multiple of the post-positioned pick-up head of intelligent terminal, thereby make the operator can be by moving forward and backward the mode of intelligent terminal, reach the object of the post-positioned pick-up head zoom of controlling intelligent terminal.
Based on above-mentioned main thought, the application also proposes a kind of singlehanded method of controlling displaying contents and carrying out convergent-divergent, its general principle is: move forward and backward in the process of intelligent terminal operator, front-facing camera by intelligent terminal carries out face detection to operator, and the intelligent terminal obtaining according to detection moves the variation of the face size of front and back, control the convergent-divergent multiple of the display window displayed content of intelligent terminal, thereby make the operator can be by moving forward and backward the mode of intelligent terminal, reach the big or small object of the display window displayed content of controlling intelligent terminal.
Taking the zoom multiple of post-positioned pick-up head of controlling intelligent terminal as example, present techniques scheme is elaborated below.
The technical scheme that adopts the application to provide, in starting post-positioned pick-up head, open front-facing camera, operator passes through mobile intelligent terminal, make it to approach or away from operator's face, because object distance is less, there is obvious variation in the large young pathbreaker of face in the taken picture of front-facing camera now, thereby can obtain the data of face change in size in intelligent terminal moving process.Here, face size can be: the width of face, highly, square root or other dimensions of area.
In the time of specific implementation, can between face size and optics or digital focal length, set up functional relation, and determine the zoom multiple of camera according to set up functional relation.Preferably functional relation is as shown in Equation (1) for one:
Z=K*L/L0*Z0 determines the zoom multiple of post-positioned pick-up head, wherein:
Z is current zoom multiple;
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and concrete value is by testing decision, and adjustable, feels to regulate comfortable being as the criterion with operator;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of post-positioned pick-up head zoom; If this programme is applied to the convergent-divergent multiple of the display window displayed content of controlling intelligent terminal, so, Zmax and Zmin represent respectively maximum multiplying power and the minimum multiplying power of convergent-divergent;
Z0 is the initial value of focal length; If this programme is applied to the convergent-divergent multiple of the display window displayed content of controlling intelligent terminal, so, Z0 is the initial value of the convergent-divergent multiple of display window displayed content;
L0 is the initial value of face size;
L is the currency of face size.
In the time that focal length has been adjusted to minimum or maximum, continue to same direction mobile intelligent terminal, focal length remains unchanged.Similarly, in the time that convergent-divergent multiple is adjusted to minimum or maximum, continue to same direction mobile intelligent terminal, convergent-divergent multiple remains unchanged.
In practical application, in above-mentioned formula, needing definite key parameter is Z0 and α.Because front-facing camera is all to focus head, and the size of face is roughly suitable, and while starting to take pictures, intelligent terminal is to be generally suitable for most the distance that eyes are observed to the distance of face, and therefore the initial value of α can be determined according to statistics, Z0 determines according to the value of α and the general custom of taking.
In addition, can increase certain learning ability for system, as the method based on Bayesian statistics, according to user's service condition posteriority finely tune α and Z0, and open the manual adjustments function of these two parameter values to advanced level user.
Fig. 1 is the composition structural representation of the application's one better intelligent terminal.Referring to Fig. 1, this intelligent terminal comprises with lower module: front-facing camera 110, controlled module 120, face detection module 130, application module 140 and control module 150, wherein:
Application module is used for calling described control module and starts each module and start working;
Front-facing camera is for taking the operator of intelligent terminal;
The process of face detection module for moving forward and backward at intelligent terminal, the operator's picture photographing according to front-facing camera carries out face detection to operator, and determine the variation of face size in intelligent terminal moving process according to the testing result of face detection module, control described controlled module according to this variation.
Controlled module shown in Fig. 1 in intelligent terminal can be post-positioned pick-up head, and now, described face detection module is the zoom multiple of controlling described post-positioned pick-up head according to the variation of face size; Controlled module shown in Fig. 1 in intelligent terminal can be also display window, and now, described face detection module is controlled the convergent-divergent multiple of described display window displayed content according to the variation of face size.
After zoom multiple is adjusted, post-positioned pick-up head will be taken according to new zoom multiple, and the thumbnail of preview mode can be returned to application module before pressing shutter, so that user observes, adjusts.
Wherein, the result that described face detection module carries out face detection is face size, and described face is of a size of: the width of face, highly, square root or other dimensions of area.
Preferably, in the time that the zoom multiple to post-positioned pick-up head is controlled, face detection module is for determining the zoom multiple of post-positioned pick-up head according to following formula:
Z=K*L/L0*Z0
Wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of post-positioned pick-up head zoom;
Z0 is the initial value of focal length;
L0 is the initial value of face size;
L is the currency of face size.
Preferably, in the time that the convergent-divergent multiple to display window displayed content is controlled, face detection module is for determining the convergent-divergent multiple of displayed content according to following formula:
Z=K*L/L0*Z0
Wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of convergent-divergent;
Z0 is the initial value of the convergent-divergent multiple of display window displayed content;
L0 is the initial value of face size;
L is the currency of face size.
In actual applications, for avoiding the built-in preliminary treatment scarce capacity of front-facing camera, shown in Fig. 1, in intelligent terminal, can further include pretreatment module 160, this pretreatment module for the captured picture of front-facing camera is carried out smoothly, the operation such as denoising.
Below in conjunction with accompanying drawing, by a preferred embodiment, the application is further elaborated.
Fig. 2 is the method flow schematic diagram that the camera of controlling intelligent terminal in the application's one preferred embodiment carries out zoom.In the specific implementation, present techniques scheme can exist with the form of an application program, and therefore, method shown in Fig. 2 starts to start this application program, after this application program launching, carries out following operation:
Step 201: front-facing camera is awaited orders.
Step 202: the initial value of calculating operation person face size.
Step 203: judge whether to carry out zoom operation, if needed, execution step 204, otherwise, return to step 201.
Step 204: start front-facing camera.
Step 205: front-facing camera is taken operator.
Step 206: carry out face detection to taking the operator's picture obtaining.
Step 207: calculate zoom multiple according to the functional relation setting in advance.
Step 208: zoom multiple is sent to application program.
Step 209: judge whether application program closes, if do not closed, returns to step 205, otherwise, execution step 210.
Step 210: close front-facing camera.
So far, finish flow process shown in Fig. 2.
Mobile phone/panel computer is taken pictures and carried out Zoom control, is that the application the most directly applies.In conjunction with light-operated shutter, as the shutter of blinking etc. can complete from finding a view, accommodate to the whole shooting process of shutter in an operating process, provide the operating experience accomplishing without any letup.Especially for traditional weakness---the candid photograph of mobile phone, can significantly improve speed and the stability of shooting, thereby improve shooting quality.
Except for Zoom control, the application also can be used for that picture, webpage amplify, reduction capability.In checking picture or webpage, the position that available thumb (one-handed performance) is pinned to be needed amplification, dwindle, then cell phone, in the time that image scaling arrives the degree needing, unclamps finger, and the position of pinning is adjusted to picture center.
In addition, the application also can be used for realizing image rotation function.In the time carrying out face detection, can determine a direction vector according to the length and width of face, taking inceptive direction as reference direction, rotating mobile, current direction vector is compared with inceptive direction vector, obtain the anglec of rotation, then by angle identical image counter-rotating to realize spinfunction.
In addition, the application also can be used for that realize target moves and page-turning function.In the time carrying out face detection, can position the position in picture face, then relative face cell phone (translation), carrys out move operation target according to face in the variation of picture position, as mobile picture, e-book page turning etc.
In a word, the control method detecting based on front-facing camera face is a kind of general method in mobile phone or flat-panel systems, can be for the relevant operation of various UI.
The application is applied to control zoom, has following technical advantage than prior art:
1, in the time that operator uses intelligent terminal to take pictures, zoom with find a view and can carry out simultaneously, the operating experience of similar camera is provided, thereby can have reached optimum shooting effect by continuous feedback.
2, can liberate operator's both hands, make operator can both hands control intelligent terminal simultaneously and make it to keep stable, thereby improve shooting effect.
3, without increasing new equipment, only utilize the front-facing camera of intelligent terminal to realize, and front-facing camera has become the standard configuration of intelligent terminal at present.
4, change insensitive to light.As everyone knows, light control system cannot be worked under half-light, must introduce additional source of light, and for the front-facing camera of intelligent terminal, the screen of intelligent terminal itself is exactly a light source, in the time that operator observes the screen of intelligent terminal, the light that screen sends must be irradiated to operator on the face or with it, even if therefore under half-light, present techniques scheme also can normal use.
5, change insensitive to picture material.Common light control system is the in the situation that of scene dullness, as only having a colourless wall when, cannot normally work, because lack Reference, and the application's object of reference is operator's face, in the time that operator watches screen attentively, operator's face becomes natural object of reference, has ensured that present techniques scheme reliably and accurately works.
6,, by rational functional relation being set and regulating parameter, can make to find a view changes by near big and far smaller rule, meets people's intuition.
7, due to face from front-facing camera close to, object distance is less, while therefore moving forward and backward intelligent terminal, will there is marked change in the size of face in picture, thereby can provide reliably and accurately and to control.
8, can obtain better shooting with respect to traditional mode experiences.
If 9 in conjunction with light-operated shutter, as the shutter of blinking etc. can, without switching gesture in whole shooting process, be taken and experience thereby obtain more smoothly.
The foregoing is only the application's preferred embodiment, not in order to limit the application, all within the application's spirit and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of the application's protection.
Claims (10)
1. a method of controlling intelligent terminal, is characterized in that, comprising:
In the process moving forward and backward at intelligent terminal, by the front-facing camera of intelligent terminal, operator is carried out to face detection;
Determine the variation of face size in intelligent terminal moving process according to testing result, and according to this variation control intelligent terminal.
2. method according to claim 1, is characterized in that:
Describedly comprise according to this variation control intelligent terminal: according to the zoom multiple of the post-positioned pick-up head of this variation control intelligent terminal, or, according to the convergent-divergent multiple of the display window displayed content of this variation control intelligent terminal.
3. method according to claim 2, is characterized in that:
Described face is of a size of: the square root of width, height or the area of face.
4. method according to claim 3, is characterized in that, the described zoom multiple according to the post-positioned pick-up head of this variation control intelligent terminal is:
Determine the zoom multiple of post-positioned pick-up head according to formula Z=K*L/L0*Z0, wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of post-positioned pick-up head zoom;
Z0 is the initial value of focal length;
L0 is the initial value of face size;
L is the currency of face size.
5. method according to claim 3, is characterized in that, the described convergent-divergent multiple according to the display window displayed content of this variation control intelligent terminal is:
Determine the convergent-divergent multiple of displayed content according to formula Z=K*L/L0*Z0, wherein:
K is the first adjustment factor, K=α * (Zmax/Zmin);
α is the second adjustment factor, can just can bear, and is an empirical value setting in advance, and adjustable;
Zmax and Zmin are respectively maximum multiplying power and the minimum multiplying powers of convergent-divergent;
Z0 is the initial value of the convergent-divergent multiple of display window displayed content;
L0 is the initial value of face size;
L is the currency of face size.
6. an intelligent terminal, is characterized in that, comprising: front-facing camera, face detection module, application module, control module and controlled module, wherein:
Application module is used for calling described control module and starts each module and start working;
Front-facing camera is for taking the operator of intelligent terminal;
The process of face detection module for moving forward and backward at intelligent terminal, the operator's picture photographing according to front-facing camera carries out face detection to operator, and determine the variation of face size in intelligent terminal moving process according to the testing result of face detection module, control described controlled module according to this variation.
7. intelligent terminal according to claim 6, is characterized in that:
Described controlled module is: post-positioned pick-up head;
Described face detection module is controlled the zoom multiple of described post-positioned pick-up head according to the variation of face size.
8. intelligent terminal according to claim 6, is characterized in that:
Described controlled module is: display window;
Described face detection module is controlled the convergent-divergent multiple of described display window displayed content according to the variation of face size.
9. according to the intelligent terminal described in claim 6 to 8 any one, it is characterized in that:
The result that described face detection module carries out face detection is face size, and described face is of a size of: the square root of width, height or the area of face.
10. according to the intelligent terminal described in claim 6 to 8 any one, it is characterized in that, described intelligent terminal further comprises pretreatment module;
Described pretreatment module for to the captured picture of front-facing camera carry out smoothly, denoising operate.
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| CN110784651A (en) * | 2019-11-15 | 2020-02-11 | 维沃移动通信有限公司 | Anti-shake method and electronic equipment |
| CN113056907A (en) * | 2020-07-28 | 2021-06-29 | 深圳市大疆创新科技有限公司 | Imaging method, imaging device, and storage medium |
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| CN103929583B (en) | 2018-08-10 |
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