CN104506765B - A kind of mobile terminal and its focusing method based on touch gestures - Google Patents
A kind of mobile terminal and its focusing method based on touch gestures Download PDFInfo
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- CN104506765B CN104506765B CN201410682693.7A CN201410682693A CN104506765B CN 104506765 B CN104506765 B CN 104506765B CN 201410682693 A CN201410682693 A CN 201410682693A CN 104506765 B CN104506765 B CN 104506765B
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- taking pictures
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000008859 change Effects 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 13
- 238000000205 computational method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention provides a kind of mobile terminal and its focusing method based on touch gestures, the focusing method include：Unlatching takes pictures program to show preview screen on the touchscreen；Click on the focus frame positioned at preview screen edge and slided to focal position；User touch location reaches the direction of motion of change focus frame after focal position；Focused at the change of procedure identification of the taking pictures focus frame direction of motion and judge that focus operation terminates；Programme-control camera of taking pictures when touch action leaves touch-screen is taken pictures.Focusing method provided by the invention based on touch gestures, by the change in location of touch gestures on the touchscreen, once completes focusing and action of taking pictures, simplify the operating process that focusing is taken pictures, make the process of taking pictures of user more convenient, shorten focusing time, easy to capture moment picture.
Description
Technical field
The present invention relates to the technical field of the focusing of taking pictures of mobile terminal, is specifically related to a kind of mobile terminal and its is based on
The focusing method of touch gestures.
Background technology
Smart mobile phone using Android as representative, more and more lives for entering common people.Wherein, Android is carried
Camera take pictures application program, if the user thinks that needing optimization focusing manually, generally comprise the steps：
1st, user opens camera programs, shows preview screen；
2nd, user clicks on the region for wanting focusing in preview screen；
3rd, camera programs start to focus, display yellow focusing square frame；
4th, camera programs focusing is completed, and shows green focusing square frame；
5th, user clicks on button of taking pictures, and camera programs are taken pictures, and terminates.
Referring to Fig. 1, Fig. 1 is the structure diagram of preview screen of taking pictures in the prior art, its outmost square frame represents screen
Curtain, after user opens camera programs, shows view picture preview screen.The circle on the right represents button of taking pictures.Dotted ellipse
Represent that user clicks on the action of screen, No. 1 ellipse representation user clicks on the region for wanting focusing, and No. 2 ellipse representation users take pictures
Button.Square brackets represent focusing square frame.
Above-mentioned steps have the disadvantage that：(1) user needs to click on touch-screen twice, and the position clicked on twice may
There is very big distance, cause user's operation difficulty；(2) additionally, due in most cases, it is straight that user, which needs to keep mobile phone,
Vertical state, twice click can cause focusing to take pictures time-consuming long, it is difficult to capture.
The content of the invention
The embodiment of the present invention provides a kind of mobile terminal and its focusing method based on touch gestures, to solve the prior art
Middle user needs to click on touch-screen twice, and the position clicked on twice causes user's operation difficulty, consumption due in larger distance
When it is longer and be difficult to the technical problem captured.
To solve the above problems, an embodiment of the present invention provides a kind of focusing method based on touch gestures, the focusing
Method includes：Unlatching takes pictures program to show preview screen on the touchscreen；Click on the focus frame positioned at preview screen edge
And slided to focal position；User touch location reaches the direction of motion of change focus frame after focal position；Take pictures procedure identification
Focused at the change of the focus frame direction of motion and judge that focus operation terminates；Take pictures when touch action leaves touch-screen journey
Sequence control camera is taken pictures.
According to one preferred embodiment of the present invention, the shape of the focus frame be rectangle, it is ellipse, linear.
According to one preferred embodiment of the present invention, the focus frame is located at preview screen surrounding edge, quantity for one or
It is multiple.
According to one preferred embodiment of the present invention, focus at the change of the procedure identification focus frame direction of motion of taking pictures
And judge that the step of focus operation terminates includes：
Program of taking pictures obtains the coordinate data of user touch location, and constantly updates its longitudinal coordinate maximum；
The longitudinal coordinate value of procedure identification of taking pictures user touch location judges the longitudinal direction to focus at maximum
Focusing terminates when coordinate value is less than the longitudinal coordinate maximum.
According to one preferred embodiment of the present invention, when clicking on positioned at the focus frame of preview screen edge, the focus frame
Color changes.
According to one preferred embodiment of the present invention, color becomes when the focus frame is focused at longitudinal coordinate maximum
Change.
According to one preferred embodiment of the present invention, focus at the change of the procedure identification focus frame direction of motion of taking pictures
And judge that the step of focus operation terminates includes：
Program of taking pictures obtains the coordinate data of user touch location, and the position coordinates constantly is write dot matrix array；
Cubic Spline Fitting is carried out to each coordinate value in dot matrix array；
Program of taking pictures is focused at the derivative for calculating Cubic Spline Fitting function is 0, and judges to intend in cubic spline
Focusing when derivative value positive and negative of function changes is closed to terminate.
According to one preferred embodiment of the present invention, when clicking on positioned at the focus frame of preview screen edge, the focus frame
Color changes.
According to one preferred embodiment of the present invention, the focus frame is when the derivative of Cubic Spline Fitting function is to focus at 0
Color changes.
In order to solve the above technical problems, the present invention also provides a kind of mobile terminal, the mobile terminal includes camera, and profit
Focusing of taking pictures is carried out with preceding claim focusing method.
Relative to the prior art, mobile terminal provided by the invention and its focusing method based on touch gestures, by touching
The change in location of gesture on the touchscreen is touched, once completes focusing and action of taking pictures, the operating process that focusing is taken pictures is simplified, makes
The process of taking pictures of user is more convenient, shortens focusing time, easy to capture moment picture.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structure diagram of preview screen of taking pictures in the prior art；
Fig. 2 is that the display preview of taking pictures of the mobile terminal of one preferred embodiment of focusing method based on touch gestures of the invention is drawn
The structure diagram in face；
Fig. 3 is the operation chart of focusing of taking pictures in Fig. 2 embodiments；
Fig. 4 is a kind of computational methods of the touch track of focusing method one preferred embodiment of the invention based on touch gestures
Flow chart；
Fig. 5 is another operation chart of focusing of taking pictures in Fig. 2 embodiments；And
A kind of computational methods of the touch track of another preferred embodiment of focusing method of Fig. 6 present invention based on touch gestures
Flow chart.
Embodiment
With reference to the accompanying drawings and examples, the present invention is described in further detail.It is emphasized that following implement
Example is merely to illustrate the present invention, but the scope of the present invention is not defined.Likewise, following embodiments are only the portion of the present invention
Point embodiment and not all embodiments, the institute that those of ordinary skill in the art are obtained without creative efforts
There are other embodiments, belong to the scope of protection of the invention.
Referring to Fig. 2, the mobile terminal that Fig. 2 is focusing method one preferred embodiment of the invention based on touch gestures is taken pictures
Show the structure diagram of preview screen, wherein, 100 expression preview screens, 101 expression focus frames, 102 expression shoot buttons, 103
Represent (user is desired) focal position and 104 expression user touch locations.Below to focusing on and the process of taking pictures has
Body introduction.
Referring to Fig. 3, Fig. 3 is the operation chart of focusing of taking pictures in Fig. 2 embodiments, when user needs to take pictures
When, program of taking pictures is first turned on, program of taking pictures shows preview screen 100 on the touchscreen, and click is located at preview screen frontside edge
Any point in the focus frame 101 at place, the color of focus frame 101 are changed into red, naturally it is also possible to become other colors, user
Finger is slided to focal position 103, and in sliding process, program of taking pictures constantly repaints poly- according to user touch location 104
Burnt frame 101, i.e. focus frame 101 follows user's finger upward sliding during this.Position is focused on when user touch location 104 reaches
After putting 103, user's finger slide downward, the direction of motion of change focus frame 101,101 side of moving of procedure identification of taking pictures focus frame
To change at that moment, the position where user touch location 104 is focused and judges that focus operation terminates, and focusing is dynamic
After work, touch action can be slided to any direction, take pictures when touch action leaves touch-screen programme-control camera into
Row is taken pictures, and entirely the process of taking pictures terminates.
Wherein, the shape of focus frame 101 can be rectangle, ellipse, linear etc., its position can be located at preview screen
At surrounding edge, quantity can be one or more, not limit herein.
The process of taking pictures is specifically described below in conjunction with two kinds of computational methods of focus process.
Referring to Fig. 4, Fig. 4 is the one of the touch track of focusing method one preferred embodiment of the invention based on touch gestures
Kind computational methods flow chart, the flow include but not limited to following steps.
Step S401, user choose focus frame, and the color of focus frame is changed into red.
Step S402, program of taking pictures obtain the position coordinate data of touch point.
Step S403, program of taking pictures judge whether longitudinal coordinate (Y value) value of user touch location is more than maximum (Max
Y), if it is judged that being yes, then next step is carried out.
Step S404, Max Y are stored as by the Y value of current point.
Wherein, after step S402, also carry out judging whether current point Y value is less than Max Y and has certain distance (to walk
Rapid S405), if it is judged that being no, then return to step S402, reacquire the position coordinate data of focus frame；If it is determined that
As a result it is yes, then into next step.
Step S406, program of taking pictures are focused and show yellow focus frame, and green focus frame is shown after the completion of focusing.Its
In, the longitudinal coordinate value of procedure identification of taking pictures focus frame present position is (original when maximum or Y value variation tendency change
Being increase tendency, after when being changed into reduction trend), focus at the user touch location corresponding to Max Y.
Step S407, touches finger and leaves touch-screen, program of taking pictures is taken pictures, and the process of taking pictures terminates.
Also referring to Fig. 5 and Fig. 6, Fig. 5 is another operation chart of focusing of taking pictures in Fig. 2 embodiments；And
A kind of computational methods flow chart of the touch track of another preferred embodiment of focusing method of Fig. 6 present invention based on touch gestures.
Wherein, which mainly includes the following steps that.
Step S501, user choose focus frame, and the color of focus frame is changed into red.
Step S502, program of taking pictures obtains user touch location coordinate data, and position coordinate data is stored in dot matrix number
Group.
Step S503, program of taking pictures obtain Cubic Spline Fitting function according to dot matrix array.Wherein, Fig. 5 shows user
Operated the Cubic Spline Fitting function of middle acquisition.
Step S504, program of taking pictures are differentiated on Cubic Spline Fitting function is calculated at the position of each point.
Step S505, judges whether required derivative is 0, and if the judgment is No, then return to step S502, reacquires poly-
The position coordinate data of burnt frame, and position coordinate data is stored in dot matrix array；If the judgment is Yes, then next step is carried out.
Step S506, program of taking pictures focus and show yellow focus frame, and green focus frame is shown after the completion of focusing.Wherein,
Program of taking pictures is focused at the derivative for calculating Cubic Spline Fitting function is 0, and is judged in Cubic Spline Fitting function
Focusing terminates when derivative value positive and negative changes.
Step S507, touches finger and leaves touch-screen, program of taking pictures is taken pictures, and the process of taking pictures terminates.
Focusing method provided in an embodiment of the present invention based on touch gestures, has used judgement " user's touch trajectory direction
Change " method, to realize the operation to " focusing " and " taking pictures " two steps, in this process, the finger of user
Touch-screen is not left, and sliding distance is no more than the half of screen short side.In addition this patent uses " finger frames out " to make
For the action of " taking pictures ", rocking when taking pictures can be greatly reduced, while also shorten focusing time, drawn easy to capture moment
Face.
In addition, the present invention also provides a kind of mobile terminal, which includes camera, and utilizes pair of above-described embodiment
Burnt method carries out focusing of taking pictures, on mobile terminal other parts architectural feature skilled artisans appreciate that model
Within enclosing, details are not described herein again.
The foregoing is merely a kind of embodiment of the present invention, not thereby limit the scope of the invention, every utilization
The equivalent device or equivalent process transformation that description of the invention and accompanying drawing content are made, it is related to be directly or indirectly used in other
Technical field, be included within the scope of the present invention.
Claims (6)
1. a kind of focusing method based on touch gestures, it is characterised in that the focusing method includes：
Unlatching takes pictures program to show preview screen on the touchscreen；
Click on the focus frame positioned at preview screen edge and slided to focal position；
User touch location reaches the direction of motion of change focus frame after focal position；
Focused at the change of procedure identification of the taking pictures focus frame direction of motion and judge that focus operation terminates；
Programme-control camera of taking pictures when touch action leaves touch-screen is taken pictures；
Wherein, focused at the change of the procedure identification focus frame direction of motion of taking pictures and judge the step that focus operation terminates
Suddenly include：
Program of taking pictures obtains the coordinate data of user touch location, and the position coordinates constantly is write dot matrix array；
Cubic Spline Fitting is carried out to each coordinate value in dot matrix array；
Program of taking pictures is focused at the derivative for calculating Cubic Spline Fitting function is 0, and is judged in Cubic Spline Fitting letter
Focusing terminates when several derivative values positive and negative changes.
2. focusing method according to claim 1, it is characterised in that the shape of the focus frame for rectangle, ellipse,
It is linear.
3. focusing method according to claim 2, it is characterised in that the focus frame is located at preview screen surrounding edge
Place, quantity are one or more.
4. focusing method according to claim 1, it is characterised in that click on the focus frame positioned at preview screen edge
When, the color of the focus frame changes.
5. focusing method according to claim 4, it is characterised in that the focus frame is led Cubic Spline Fitting function
Number is that color changes when focusing at 0.
6. a kind of mobile terminal, it is characterised in that the mobile terminal includes camera, and utilizes any one of claim 1-5 institute
The focusing method stated carries out focusing of taking pictures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682693.7A CN104506765B (en) | 2014-11-21 | 2014-11-21 | A kind of mobile terminal and its focusing method based on touch gestures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682693.7A CN104506765B (en) | 2014-11-21 | 2014-11-21 | A kind of mobile terminal and its focusing method based on touch gestures |
Publications (2)
| Publication Number | Publication Date |
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| CN104506765A CN104506765A (en) | 2015-04-08 |
| CN104506765B true CN104506765B (en) | 2018-05-11 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686213A (en) * | 2016-12-01 | 2017-05-17 | 努比亚技术有限公司 | Shooting method and apparatus thereof |
| CN107529010A (en) * | 2017-08-16 | 2017-12-29 | 维沃移动通信有限公司 | A kind of photographic method, mobile terminal and storage medium |
| CN108965709B (en) * | 2018-07-25 | 2020-08-14 | 维沃移动通信有限公司 | Focusing method and terminal |
| CN112402194A (en) * | 2019-08-23 | 2021-02-26 | 北京超维度计算科技有限公司 | Auxiliary terminal system for visually impaired people |
| CN111031249B (en) * | 2019-12-26 | 2021-07-13 | 维沃移动通信有限公司 | Auxiliary focusing method and electronic equipment |
| CN111050073B (en) * | 2019-12-26 | 2022-01-28 | 维沃移动通信有限公司 | Focusing method and electronic equipment |
| CN113037999A (en) * | 2021-02-23 | 2021-06-25 | Oppo广东移动通信有限公司 | Shooting method and device, mobile terminal and storage medium |
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| CN103135927A (en) * | 2013-01-25 | 2013-06-05 | 广东欧珀移动通信有限公司 | Method and system for rapid focusing and photographing of mobile terminal |
| CN103873759A (en) * | 2012-12-17 | 2014-06-18 | 联想(北京)有限公司 | Shooting method and electronic equipment |
| CN103997565A (en) * | 2014-04-17 | 2014-08-20 | 广东明创软件科技有限公司 | Single-handed operation focusing method based on mobile terminal, and single-handed operation focusing mobile terminal |
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| EP2782328A4 (en) * | 2011-12-16 | 2015-03-11 | Olympus Imaging Corp | Imaging device and imaging method, and storage medium for storing tracking program processable by computer |
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2014
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Patent Citations (5)
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|---|---|---|---|---|
| CN101360189A (en) * | 2008-07-03 | 2009-02-04 | 明基电通有限公司 | Camera control method and camera thereof |
| CN101615090A (en) * | 2009-06-30 | 2009-12-30 | 青岛海信电器股份有限公司 | Touch signal detection method and device |
| CN103873759A (en) * | 2012-12-17 | 2014-06-18 | 联想(北京)有限公司 | Shooting method and electronic equipment |
| CN103135927A (en) * | 2013-01-25 | 2013-06-05 | 广东欧珀移动通信有限公司 | Method and system for rapid focusing and photographing of mobile terminal |
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