CN104601889B - The photographic method and device of a kind of mobile terminal - Google Patents

The photographic method and device of a kind of mobile terminal Download PDF

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Publication number
CN104601889B
CN104601889B CN201510028380.4A CN201510028380A CN104601889B CN 104601889 B CN104601889 B CN 104601889B CN 201510028380 A CN201510028380 A CN 201510028380A CN 104601889 B CN104601889 B CN 104601889B
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China
Prior art keywords
camera
mobile terminal
rotation
location
anglec
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CN201510028380.4A
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Chinese (zh)
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CN104601889A (en
Inventor
邹建敏
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广东欧珀移动通信有限公司
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Priority to CN201510028380.4A priority Critical patent/CN104601889B/en
Publication of CN104601889A publication Critical patent/CN104601889A/en
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Publication of CN104601889B publication Critical patent/CN104601889B/en

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Abstract

The present invention is applied to technical field of mobile terminals, there is provided the photographic method and device of a kind of mobile terminal, including:Image recognition is carried out to the camera preview picture of the mobile terminal, determines the face location in the preview screen;Position relationship based on the face location Yu the golden section point of the preview screen, calculate the anglec of rotation;The camera of the mobile terminal is controlled to rotate the anglec of rotation, to complete to take pictures.Pass through the photographic method of mobile terminal provided by the invention, when user carries out self-timer operation by mobile terminal, mobile terminal camera can be rotated during finding a view according to the position relationship of face location and golden section point, so as to automatically generate preferable patterning effect, avoid shooting repeatedly because the photo composition of shooting is bad, the situation for causing mobile terminal to produce meaningless energy expenditure occurs, and has saved energy consumption.

Description

The photographic method and device of a kind of mobile terminal

Technical field

The invention belongs to the photographic method and device of technical field of mobile terminals, more particularly to a kind of mobile terminal.

Background technology

With the lifting of mobile terminal image procossing performance, user has started to depend on records life by mobile terminal Colorful moment living, for example, complete Self-timer using the front camera of mobile phone, shoot expression that lower user enriches, Expression or action, to reach the purpose reviewed or shared.

However, due to the limitation of user's limbs or shooting environmental, during self-timer, the camera of mobile terminal can not Preferable shooting angle is placed in, the photo for causing to shoot has patterning defects, generally requires to repeat multiple self-timer behaviour Work can photograph customer satisfaction system photo, thereby increase the electric quantity consumption of mobile terminal.

The content of the invention

The purpose of the embodiment of the present invention is the photographic method and device for providing a kind of mobile terminal, it is intended to solves to move at present Easily there are patterning defects in the photo that dynamic terminal is shot when performing self-timer and operating, so as to need repeatedly self-timer operation, The problem of causing the electric quantity consumption increase of mobile terminal.

The embodiment of the present invention is achieved in that a kind of photographic method of mobile terminal, including:

Image recognition is carried out to the camera preview picture of the mobile terminal, determines the face position in the preview screen Put;

Position relationship based on the face location Yu the golden section point of the preview screen, calculate the anglec of rotation;

The camera of the mobile terminal is controlled to rotate the anglec of rotation, to complete to take pictures.

The another object of the embodiment of the present invention is to provide a kind of camera arrangement of mobile terminal, including:

Image identification unit, for carrying out image recognition to the camera preview picture of the mobile terminal, determine described pre- The face location look in picture;

Computing unit, for the position relationship based on the face location Yu the golden section point of the preview screen, meter Calculate the anglec of rotation;

Control unit, for controlling the camera of the mobile terminal to rotate the anglec of rotation, to complete to take pictures.

By the photographic method of mobile terminal provided in an embodiment of the present invention, self-timer behaviour is carried out by mobile terminal in user When making, mobile terminal camera can be rotated during finding a view according to the position relationship of face location and golden section point, So as to automatically generate preferable patterning effect, avoid shooting repeatedly because the photo composition of shooting is bad, cause mobile terminal to produce The situation of raw meaningless energy expenditure occurs, and has saved energy consumption.

Brief description of the drawings

Fig. 1 is the implementation process figure of the photographic method of mobile terminal provided in an embodiment of the present invention;

Fig. 2 is the photographic method S101 of mobile terminal provided in an embodiment of the present invention specific implementation flow chart;

Fig. 3 is the schematic diagram of the golden section point of preview screen provided in an embodiment of the present invention;

Fig. 4 is the photographic method S102 of mobile terminal provided in an embodiment of the present invention specific implementation flow chart;

Fig. 5 is the photographic method S103 of mobile terminal provided in an embodiment of the present invention specific implementation flow chart;

Fig. 6 is the photographic method S102 for the mobile terminal that another embodiment of the present invention provides specific implementation flow chart;

Fig. 7 is the structured flowchart of the camera arrangement of mobile terminal provided in an embodiment of the present invention.

Embodiment

In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.

Fig. 1 shows the implementation process of the photographic method of mobile terminal provided in an embodiment of the present invention, and details are as follows:

In S101, image recognition is carried out to the camera preview picture of the mobile terminal, determined in the preview screen Face location.

The mobile terminal, can be the terminal device for being integrated with camera and display screen, including smart mobile phone, flat board, Palm PC (Personal Digital Assistant, PDA), camera, etc..Wherein, the camera in terminal is used for Realization is taken pictures, camera function, meanwhile, in the present embodiment, the camera is also equipped with rotating function, is included in vertical direction and turns Move and rotate in the horizontal direction, to form different shooting angle;And display screen is used to realize the preview function to shooting picture, That is, by carrying out real-time display to the picture of the current income of camera, for user's preview, so as to reach the effect of view finder.

When camera starts, and shoots current scene and generates preview screen, recognition of face is carried out to the preview screen, Face is oriented in preview screen, so as to obtain the face location in preview screen.

As one embodiment of the present of invention, as shown in Fig. 2 S101 is specially:

In S201, whether the front camera for detecting the mobile terminal is opened.

In S202, when the front camera of the mobile terminal is opened, the camera preview of the mobile terminal is drawn Face carries out image recognition, determines the face location in the preview screen.

Under normal circumstances, only when user uses the Self-timer of mobile terminal, shooting angle just can be by user's limbs Or shooting environmental limitation, and Self-timer be in most cases by the front camera of mobile terminal (that is, with mobile terminal Display location in the camera of the same side) come what is completed, therefore, in the present embodiment, only when detecting mobile terminal When front camera is opened, otherwise just triggering, keeps the existing behaviour of mobile terminal to the image recognition operations of current preview picture Make mode, so as to reach the purpose for saving mobile terminal system resource and energy expenditure.

In S102, the position relationship based on the face location Yu the golden section point of the preview screen, rotation is calculated Gyration.

As shown in figure 3, there are four golden section points of diagram in each picture, when S101 is determined in preview screen After face location, further determine that out that the face location is closed relative to the position of one of golden section point of preview screen System, the position relationship include pixel distance and direction, can establish two dimension as the origin of coordinates using golden section point position and sit Mark system, so that it is determined that going out coordinate of the face location in the two-dimensional coordinate system, the position relationship of the two is determined with this.Need Bright, in the present embodiment, the position relationship of face location and golden section point determines problem, can be converted to face location Center and the position relationship of golden section point determine problem.

Based on pixel distance of the face location calculated relative to preview screen golden section point and direction, can correspond to To unique one group of anglec of rotation, this group of anglec of rotation can be made up of several anglecs of rotation, and each anglec of rotation includes Direction of rotation and angular displacement, for example, one group of anglec of rotation can be by being rotated up 10 degree and turning left 5 degree to form, for table The bright angle adjustment that to face location is moved at the golden section point of preview screen, camera needs are made.

As one embodiment of the present of invention, as shown in figure 4, S102 is specially:

S401, a golden section point nearest with the face location is determined in the preview screen.

S402, the position relationship based on the face location and the golden section point determined, calculate the anglec of rotation.

Due to four golden section points in preview screen be present, therefore, in the present embodiment, only determine face location with The position relationship of its nearest golden section point, the anglec of rotation so calculated can ensure the feelings of preferable composition Under condition so that the adjustment action of camera is minimum, to avoid unnecessary resource overhead.

In S103, the camera of the mobile terminal is controlled to rotate the anglec of rotation, to complete to take pictures.

After the anglec of rotation is calculated, by driving the connected motor of camera, driving mobile terminal camera rotates The anglec of rotation, after camera turns to target location, preview screen carries out word or picture cues, or mobile terminal Auditory tone cues is sent, so as to prompt user to perform photographing operation, to complete to take pictures.

By the photographic method of mobile terminal provided in an embodiment of the present invention, self-timer behaviour is carried out by mobile terminal in user When making, mobile terminal camera can be rotated during finding a view according to the position relationship of face location and golden section point, So as to automatically generate preferable patterning effect, avoid shooting repeatedly because the photo composition of shooting is bad, cause mobile terminal to produce The situation of raw meaningless energy expenditure occurs, and has saved energy consumption.

Because in focus process of finding a view, user may be moved, cause position hair of the face in preview screen Changing, therefore, as one embodiment of the present of invention, before taking pictures, it is also necessary to reaffirm face location and gold point The position relationship of cutpoint.As shown in figure 5, S103 is specially:

In S501, the camera is controlled to rotate the anglec of rotation.

In S502, the face location calculated in current preview picture is relative with the golden section point of the preview screen Whether displacement is less than predetermined threshold value.

Face position in control camera has rotated the anglec of rotation calculated and then secondary acquisition current preview picture The position relationship with the golden section point of preview screen is put, judges whether the relative displacement of face center and golden section point is less than One default pixel distance.

In S503, when the relative displacement is less than the predetermined threshold value, prompting user performs action of taking pictures, to complete to clap According to.

In S504, when the relative displacement is not less than the predetermined threshold value, then re-executes and described be based on the face The position relationship of the golden section point of position and the preview screen, the step of calculating the anglec of rotation.

By S502 judgement, if the relative displacement calculated is less than the predetermined threshold value, user can be prompted to perform bat According to action, to complete to take pictures;If the relative displacement calculated is not less than the predetermined threshold value, show that user can relative to camera It can then return there occurs movement, or anglec of rotation calculating mistake and perform S102, the shooting angle of camera is adjusted again It is whole.

As another embodiment of the present invention, as shown in fig. 6, S103 is specially:

In S601, the camera is controlled to rotate.

In S601, detect whether the camera has turned to its maximum rotation angle in rotation process.

In S601, when detecting that the camera turned to its maximum rotation angle, prompt user perform take pictures it is dynamic Make, to complete to take pictures.

In S601, when detecting that the camera do not turn to its maximum rotation angle, then continue to control the shooting Head rotates, until after the camera rotates the anglec of rotation, prompts user to perform action of taking pictures, to complete to take pictures.

Due in the terminal, there is maximum rotation angle in camera, and have can for the anglec of rotation calculated in S102 The maximum rotation angle of camera can be more than, therefore, in the present embodiment, while control camera rotates, detection in real time is taken the photograph As whether head has turned to its maximum rotation angle, if detecting, camera has turned to its maximum rotation angle, shows to work as Preceding composition has been the optimal composition that can reach under existing shooting condition, then prompts user to perform action of taking pictures, to complete Take pictures, or prompting user changes the position of mobile terminal, to re-start composition;If detecting, camera does not turn to it also Maximum rotation angle, then continue to control camera to rotate, until after camera have rotated the anglec of rotation, prompt user to perform Take pictures action, to complete to take pictures.

Corresponding to the photographic method of the mobile terminal described in foregoing embodiments, Fig. 7 shows provided in an embodiment of the present invention The structured flowchart of the camera arrangement of mobile terminal, the device can be located at mobile terminal in, for convenience of description, illustrate only with The related part of the present embodiment.

Reference picture 7, the device include:

Image identification unit 71, image recognition is carried out to the camera preview picture of the mobile terminal, determines the preview Face location in picture.

Computing unit 72, the position relationship based on the face location Yu the golden section point of the preview screen, calculate The anglec of rotation.

Control unit 73, the camera of the mobile terminal is controlled to rotate the anglec of rotation, to complete to take pictures.

Alternatively, described image recognition unit 71 includes:

Whether the first detection sub-unit, the front camera for detecting the mobile terminal are opened.

Image recognition subelement, when the front camera of the mobile terminal is opened, to the camera of the mobile terminal Preview screen carries out image recognition, determines the face location in the preview screen.

Alternatively, described control unit 73 includes:

First control subelement, controls the camera to rotate the anglec of rotation.

Computation subunit, calculate the phase of the face location and the golden section point of the preview screen in current preview picture Whether predetermined threshold value is less than to displacement.

First prompting subelement, when the relative displacement is less than the predetermined threshold value, prompting user performs action of taking pictures, with Completion is taken pictures.

Subelement is returned to, when the relative displacement is not less than the predetermined threshold value, then return performs the computing unit 72.

Alternatively, described control unit includes:

Second control subelement, controls the camera to rotate.

Second detection sub-unit, detects whether the camera has turned to its maximum rotation angle in rotation process.

Second prompting subelement, when detecting that the camera turned to its maximum rotation angle, user is prompted to perform Take pictures action, to complete to take pictures.

The second control subelement then continues to control also when detecting that the camera do not turn to its maximum rotation angle The camera is made to rotate, until after the camera rotates the anglec of rotation, the second prompting subelement prompting user Execution is taken pictures action, to complete to take pictures.

Alternatively, the computing unit 72 includes:

Determination subelement, a golden section point nearest with the face location is determined in the preview screen.

Computation subunit, the position relationship based on the face location and the golden section point determined, calculate rotation Gyration.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (6)

  1. A kind of 1. photographic method of mobile terminal, it is characterised in that including:
    Image recognition is carried out to the camera preview picture of the mobile terminal, the face location in the preview screen is determined, wraps Include:Whether the front camera for detecting the mobile terminal is opened;When the front camera of the mobile terminal is opened, to institute The camera preview picture for stating mobile terminal carries out image recognition, determines the face location in the preview screen;Wherein, before described Put camera and possess rotating function, be included in vertical direction and rotate and rotate in the horizontal direction, to form different shooting angle;
    Position relationship based on the face location Yu the golden section point of the preview screen, calculate the anglec of rotation, the rotation Gyration includes direction of rotation and angular displacement;
    Control the front camera of the mobile terminal to rotate the anglec of rotation, prompt user to perform photographing operation, to complete Take pictures, including:
    The front camera is controlled to rotate the anglec of rotation;
    Whether the relative displacement for calculating face location and the golden section point of the preview screen in current preview picture is less than Predetermined threshold value;
    When the relative displacement is less than the predetermined threshold value, prompting user performs action of taking pictures, to complete to take pictures;
    When the relative displacement is not less than the predetermined threshold value, then re-execute described based on the face location and the preview The position relationship of the golden section point of picture, calculate the anglec of rotation the step of.
  2. 2. the method as described in claim 1, it is characterised in that the front camera of the control mobile terminal rotates institute The anglec of rotation is stated, prompts user to perform photographing operation, to complete to take pictures, in addition to:
    The front camera is controlled to rotate;
    Detect whether the front camera has turned to its maximum rotation angle in rotation process;
    When detecting that the front camera turned to its maximum rotation angle, user is prompted to perform action of taking pictures, with completion Take pictures;
    When detecting that the front camera do not turn to its maximum rotation angle, then continue to control the front camera to turn It is dynamic, until after the front camera rotates the anglec of rotation, prompt user to perform action of taking pictures, to complete to take pictures.
  3. 3. method as claimed in claim 1 or 2, it is characterised in that described to be based on the face location and the preview screen Golden section point position relationship, calculate the anglec of rotation include:
    A golden section point nearest with the face location is determined in the preview screen;
    Position relationship based on the face location and the golden section point determined, calculate the anglec of rotation.
  4. A kind of 4. camera arrangement of mobile terminal, it is characterised in that including:
    Image identification unit, for carrying out image recognition to the camera preview picture of the mobile terminal, determine that the preview is drawn Face location in face, and whether the front camera specifically for detecting the mobile terminal is opened;When the mobile terminal Front camera when opening, image recognition is carried out to the camera preview picture of the mobile terminal, determines the preview screen In face location;Wherein, the front camera possesses rotating function, is included in vertical direction and rotates and turn in the horizontal direction It is dynamic, to form different shooting angle;
    Computing unit, for the position relationship based on the face location Yu the golden section point of the preview screen, calculate rotation Gyration, the anglec of rotation include direction of rotation and angular displacement;
    Control unit, for controlling the front camera of the mobile terminal to rotate the anglec of rotation, user is prompted to perform bat According to operation, to complete to take pictures;
    Described control unit includes:
    First control subelement, for controlling the front camera to rotate the anglec of rotation;
    Computation subunit, for calculating the phase of the face location in current preview picture and the golden section point of the preview screen Whether predetermined threshold value is less than to displacement;
    First prompting subelement, for being less than the predetermined threshold value when the relative displacement, user is prompted to perform action of taking pictures, with Completion is taken pictures;
    Subelement is returned, for being not less than the predetermined threshold value when the relative displacement, then returns and performs the computing unit.
  5. 5. device as claimed in claim 4, it is characterised in that described control unit includes:
    Second control subelement, for controlling the front camera to rotate;
    Second detection sub-unit, for detecting whether the front camera has turned to its maximum rotation angle in rotation process Degree;
    Second prompting subelement, detect that the front camera has turned to its maximum rotation angle for working as, prompt user Execution is taken pictures action, to complete to take pictures;
    The second control subelement is additionally operable to when detecting that the front camera does not turn to its maximum rotation angle, then after The continuous control front camera rotates, until after the front camera rotates the anglec of rotation, the second prompting Unit prompting user performs action of taking pictures, to complete to take pictures.
  6. 6. the device as described in claim 4 or 5, it is characterised in that the computing unit includes:
    Determination subelement, for determining a golden section point nearest with the face location in the preview screen;
    Computation subunit, for the position relationship based on the face location and the golden section point determined, calculate rotation Gyration.
CN201510028380.4A 2015-01-20 2015-01-20 The photographic method and device of a kind of mobile terminal CN104601889B (en)

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CN104994282B (en) * 2015-06-30 2018-01-19 广东欧珀移动通信有限公司 A kind of big visual angle camera control method and user terminal
CN105007418B (en) * 2015-07-03 2018-07-06 广东欧珀移动通信有限公司 A kind of photographic method and mobile terminal
CN106657755A (en) * 2015-07-30 2017-05-10 中兴通讯股份有限公司 Photographing method and photographing device
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CN105592267B (en) * 2015-12-24 2018-05-29 广东欧珀移动通信有限公司 Camera control method, photographing control device and camera system
CN107092853A (en) * 2016-02-17 2017-08-25 中兴通讯股份有限公司 Photographic method and device
CN106254769B (en) * 2016-07-29 2018-06-29 广东欧珀移动通信有限公司 Photographic method, device and the mobile terminal of mobile terminal
CN106254770B (en) * 2016-07-29 2017-10-17 广东欧珀移动通信有限公司 Image pickup method, device and the mobile terminal of mobile terminal
CN106713749A (en) * 2016-12-13 2017-05-24 广州视源电子科技股份有限公司 Camera shooting control method and system and interactive intelligent integrated tablet computer
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CN108833622A (en) * 2018-06-08 2018-11-16 Oppo广东移动通信有限公司 Control method, control assembly and the electronic equipment of sliding equipment
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.

Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18

Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.