CN106161970A - A kind of image pickup method, device and mobile terminal - Google Patents

A kind of image pickup method, device and mobile terminal Download PDF

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Publication number
CN106161970A
CN106161970A CN201610852188.1A CN201610852188A CN106161970A CN 106161970 A CN106161970 A CN 106161970A CN 201610852188 A CN201610852188 A CN 201610852188A CN 106161970 A CN106161970 A CN 106161970A
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Prior art keywords
current shooting
shooting picture
described current
captured
target
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CN201610852188.1A
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CN106161970B (en
Inventor
马晓燕
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/61Control of cameras or camera modules based on recognised objects
    • H04N23/611Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses a kind of image pickup method and device, the shooting triggered by receiving user instructs, and obtains current shooting picture;Extract the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, to lighten the background of target to be captured;Treat photographic subjects according to profile information to focus, complete the shooting to current shooting picture.Image pickup method provided by the present invention and device, the background luminance at interface of being found a view by lifting, it is possible to more accurately navigate to focusing area, substantially reduce the time of focusing, thus be rapidly completed and take pictures.The application substantially increases the experience of user, adds practicality.Additionally, present invention also offers a kind of mobile terminal with above-mentioned technological merit.

Description

A kind of image pickup method, device and mobile terminal
Technical field
The present invention relates to mobile terminal technique for taking field, particularly relate to a kind of image pickup method, device and move eventually End.
Background technology
Along with the variation of intelligent mobile terminal function, user's experience requirements to taking pictures is more and more higher, mobile terminal Camera function increasingly paid attention to.In actual use, people inevitably run into situation about taking pictures under sunlight. When facing away from the sun and taking pictures, it is found that the dark of human face region, it is impossible to recognize face, the most even cannot focus into Merit, causes taking pictures unsuccessful.Or when face is under dark background, it is also difficult to focus successfully.It addition, in feelings of taking pictures at a distance Under condition, owing to distance reason also is difficult to capture captured face, long-time unsuccessful problem of focusing can be run into equally.Cause This, practicality and the Consumer's Experience of prior art are the most poor.
Summary of the invention
It is an object of the invention to provide a kind of image pickup method, device and mobile terminal, real to solve existing image pickup method By the problem that property and Consumer's Experience are poor.
For solving above-mentioned technical problem, the present invention provides a kind of image pickup method, including:
Receive the shooting instruction that user triggers, obtain current shooting picture;
Extract the profile information of target to be captured in described current shooting picture;
By the brightness regulation of described current shooting picture to predetermined luminance value, to lighten the background of described target to be captured;
According to described profile information, described target to be captured is focused, complete the bat to described current shooting picture Take the photograph.
Alternatively, the brightness regulation of described current shooting picture was also being included before predetermined luminance value:
The unlatching receiving user's input lightens the triggering command of background mode automatically, enters and automatically lightens background mode.
Alternatively, the brightness regulation of described current shooting picture was also being included before predetermined luminance value:
Obtain the brightness value of described current shooting picture, when described brightness value is less than predetermined luminance threshold value, enter automatically Lighten background mode or output points out described user to open the information lightening background mode.
Alternatively, in described extraction described current shooting picture, the profile information of target to be captured includes:
Described current shooting picture is carried out image pretreatment operation;
Image through pretreatment operation is carried out feature extraction, obtains the profile information of described target to be captured.
Alternatively, the described brightness regulation by described current shooting picture includes to predetermined luminance value:
Obtain the brightness value of described current shooting picture;
According to the corresponding relation of the brightness value pre-build with regulation parameter, by the brightness regulation of described current shooting picture To described predetermined luminance value.
Present invention also offers a kind of filming apparatus, including:
Current shooting picture acquisition module, for receiving the shooting instruction that user triggers, obtains current shooting picture;
Profile extraction module, for extracting the profile information of target to be captured in described current shooting picture;
Adjustment module, is used for the brightness regulation of described current shooting picture to predetermined luminance value, waits to clap described in lightening Take the photograph the background of target;
Taking module, for described target to be captured being focused according to described profile information, complete to described currently The shooting of shooting picture.
Alternatively, also include:
Active module, for before by the brightness regulation of described current shooting picture to predetermined luminance value, receives user The unlatching of input lightens the triggering command of background mode automatically, enters and automatically lightens background mode;Or obtain described current bat Take the photograph the brightness value of picture, when described brightness value is less than predetermined luminance threshold value, enters and automatically lighten background mode or output prompting Described user opens the information lightening background mode.
Alternatively, described profile extraction module includes:
Pretreatment unit, for carrying out image pretreatment operation to described current shooting picture;
Extraction unit, for the image through pretreatment operation is carried out feature extraction, obtains described target to be captured Profile information.
Alternatively, described adjustment module includes:
Brightness value acquiring unit, for obtaining the brightness value of described current shooting picture;
Regulation unit, for the corresponding relation according to the brightness value pre-build with regulation parameter, by described current shooting The brightness regulation of picture is to described predetermined luminance value.
Present invention also offers a kind of mobile terminal, including the filming apparatus described in any of the above-described kind.
Image pickup method provided by the present invention and device, the shooting triggered by receiving user instructs, and obtains current shooting Picture;Extract the profile information of target to be captured in current shooting picture;The brightness regulation of current shooting picture is bright to presetting Angle value, to lighten the background of target to be captured;Treat photographic subjects according to profile information to focus, complete current shooting is drawn The shooting in face.Image pickup method provided by the present invention and device, the background luminance at interface of being found a view by lifting, it is possible to more accurate Navigate to focusing area, substantially reduce the time of focusing, thus be rapidly completed and take pictures.The application substantially increases user's Experience, adds practicality.Additionally, present invention also offers a kind of mobile terminal with above-mentioned technological merit.
Accompanying drawing explanation
For the clearer explanation embodiment of the present invention or the technical scheme of prior art, below will be to embodiment or existing In technology description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the flow chart of a kind of detailed description of the invention of image pickup method provided by the present invention;
Fig. 2 is the flow chart of the another kind of detailed description of the invention of image pickup method provided by the present invention;
Fig. 3 is the flow chart of another detailed description of the invention of image pickup method provided by the present invention;
The structured flowchart of the filming apparatus that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and detailed description of the invention The present invention is described in further detail.Obviously, described embodiment be only a part of embodiment of the present invention rather than Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.
The flow chart of a kind of detailed description of the invention of image pickup method provided by the present invention is as it is shown in figure 1, the method includes:
Step S101: receive the shooting instruction that user triggers, obtain current shooting picture;
In the embodiment of the present invention, mobile terminal receives the shooting instruction that user triggers, the process thus execution is taken pictures.Mobile whole End obtains current shooting picture, by display screen, current shooting picture can be carried out preview.Current shooting picture includes needing Photographic subjects and the background frame of target local environment to be captured.
Specifically, when user uses the camera function on mobile terminal to shoot, by touching terminal on take pictures by Button or imaging icon, send shooting instruction to mobile terminal.
Step S102: extract the profile information of target to be captured in described current shooting picture;
Target to be captured is the photographing objective that user is interested, is specifically as follows other information such as face.
Step S103: by the brightness regulation of described current shooting picture to predetermined luminance value, to lighten described mesh to be captured Target background;
Step S104: according to described profile information, described target to be captured is focused, complete described current shooting The shooting of picture.
Image pickup method provided by the present invention, the shooting triggered by receiving user instructs, and obtains current shooting picture;Carry Take the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, with Lighten the background of target to be captured;Treat photographic subjects according to profile information to focus, complete the bat to current shooting picture Take the photograph.Image pickup method provided by the present invention, the background luminance at interface of being found a view by lifting, it is possible to more accurately navigate to focusing Region, substantially reduces the time of focusing, thus is rapidly completed and takes pictures.The application substantially increases the experience of user, increases Add practicality.
On the basis of above-described embodiment, image pickup method provided by the present invention is in the brightness by described current shooting picture Regulation also included before predetermined luminance value:
The unlatching receiving user's input lightens the triggering command of background mode automatically, enters and automatically lightens background mode.
Or obtain the brightness value of described current shooting picture, when described brightness value is less than predetermined luminance threshold value, enter Automatically lighten background mode or output points out described user to open the information lightening background mode.
Specifically, can arrange in the terminal automatically lighten background mode triggering switch.If this triggering switch open, Then entering and automatically lighten background mode, the brightness to current shooting picture lightens automatically.If this triggering switch is for cutting out State, then cancel the function automatically lightening background.Triggering switch can be physical switches or virtual switch, and this does not the most affect this Bright realization.Triggering switch to be controlled voluntarily by user, its default conditions can be to open.
The brightness value of current shooting picture can also be detected, detect that brightness value is less than predetermined luminance threshold value Time, automatically into lightening background mode;Information can also be exported, to prompt the user with the information lightening background, receive and use The entrance of family input lightens the triggering command of background mode, is manually entered and lightens background mode.
On the basis of any of the above-described embodiment, the another kind of detailed description of the invention of image pickup method provided by the present invention Flow chart is as in figure 2 it is shown, the method includes:
Step S201: receive the shooting instruction that user triggers, obtain current shooting picture;
Step S202: described current shooting picture is carried out image pretreatment operation;
Step S203: the image through pretreatment operation is carried out feature extraction, obtains the profile of described target to be captured Information;
Step S204: obtain the brightness value of described current shooting picture;
Step S205: according to the corresponding relation of the brightness value pre-build with regulation parameter, by described current shooting picture Brightness regulation to described predetermined luminance value;
Specifically, the corresponding relation of different brightness values and regulation parameter can be pre-set, close by calling this correspondence System, can get the regulation parameter that brightness value is corresponding, thus realize lightening the entirety of current shooting picture.
Step S206: according to described profile information, described target to be captured is focused, complete described current shooting The shooting of picture.
As a example by target to be captured is as face, below in conjunction with concrete scene, image pickup method provided by the present invention is entered One step elaborates.Refer to the flow chart of another detailed description of the invention of Fig. 3 image pickup method provided by the present invention, the party Method includes:
Step S301: receive the instruction opening camera that user triggers;
Step S302: receive the shooting instruction that user triggers;
Step S303: the current shooting picture at interface of finding a view;
Step S304: extract the profile of face in current shooting picture;
Step S305: the overall brightness of current shooting picture is adjusted, so that background and the brightness of target to be captured Brighten;
Step S306: focus face, completes shooting.
When taking pictures back to high light, cause the dark in face region, be difficult to focus successfully.Now, can only Obtain the approximate region of face, by promoting the background luminance at whole interface of finding a view, it is possible to the brightest face is carried out quickly Focusing, thus complete to take pictures.
When taking pictures in the case of being in background and being dark, can only probably estimate the region of face, by promoting whole finding a view The background luminance at interface, in conjunction with the face area having been estimated that, can quickly focus, substantially reduce used by focusing Time, improve speed of taking pictures.
In the case of taking pictures at a distance, the approximate location of focusing area can only be estimated, by promoting whole boundary of finding a view The background luminance in face, obtains more accurate focusing area, is more quickly completed focus process.
The embodiment of the present invention utilizes and highlights the background of shooting to be rapidly performed by the focusing of human face region, such that it is able to accurately Obtain face location, quickly take pictures, so bringing great convenience to user.Embodiment of the present invention practicality is relatively By force, user experience can be effectively improved.
The filming apparatus provided the embodiment of the present invention below is introduced, and filming apparatus described below is with described above Image pickup method can be mutually to should refer to.
The structured flowchart of the filming apparatus that Fig. 4 provides for the embodiment of the present invention, may include that with reference to Fig. 4 filming apparatus
Current shooting picture acquisition module 100, for receiving the shooting instruction that user triggers, obtains current shooting picture;
Profile extraction module 200, for extracting the profile information of target to be captured in described current shooting picture;
Adjustment module 300, is used for the brightness regulation of described current shooting picture to predetermined luminance value, treats described in lightening The background of photographic subjects;
Taking module 400, for focusing described target to be captured according to described profile information, completes to work as described The shooting of front shooting picture.
On the basis of above-described embodiment, filming apparatus provided by the present invention can further include:
Active module, for before by the brightness regulation of described current shooting picture to predetermined luminance value, receives user The unlatching of input lightens the triggering command of background mode automatically, enters and automatically lightens background mode;Or obtain described current bat Take the photograph the brightness value of picture, when described brightness value is less than predetermined luminance threshold value, enters and automatically lighten background mode or output prompting Described user opens the information lightening background mode.
As a kind of detailed description of the invention, described in filming apparatus provided by the present invention, profile extraction module can be concrete Including:
Pretreatment unit, for carrying out image pretreatment operation to described current shooting picture;
Extraction unit, for the image through pretreatment operation is carried out feature extraction, obtains described target to be captured Profile information.
Further, described adjustment module can specifically include:
Brightness value acquiring unit, for obtaining the brightness value of described current shooting picture;
Regulation unit, for the corresponding relation according to the brightness value pre-build with regulation parameter, by described current shooting The brightness regulation of picture is to described predetermined luminance value.
Filming apparatus provided by the present invention, the shooting triggered by receiving user instructs, and obtains current shooting picture;Carry Take the profile information of target to be captured in current shooting picture;By the brightness regulation of current shooting picture to predetermined luminance value, with Lighten the background of target to be captured;Treat photographic subjects according to profile information to focus, complete the bat to current shooting picture Take the photograph.Filming apparatus provided by the present invention, the background luminance at interface of being found a view by lifting, it is possible to more accurately navigate to focusing Region, substantially reduces the time of focusing, thus is rapidly completed and takes pictures.The application substantially increases the experience of user, increases Add practicality.
Additionally, present invention also offers a kind of mobile terminal, including any of the above-described kind of filming apparatus.
Wherein, mobile terminal can include but not limited to: smart mobile phone (such as Android phone, iOS mobile phone etc.), movement Internet device (MID, Mobile Internet Devices) or wearable intelligent equipment etc. possess the movement of camera function and set Standby, this does not the most affect the realization of the present invention.
As a example by smart mobile phone, in smart mobile phone setting, about the switch module automatically lightening background, (default conditions are for opening Open).If this function is unlocked, modules corresponding in the most above-mentioned taking module will be activated;If this function is closed, Then cancel the function automatically lightening background.System setup option is commonly integrated in the middle of mobile phone camera software, it is also possible to directly add It is added among operating system setting.
When taking pictures back to high light, cause the dark in face region, be difficult to focus successfully.Now, can only Obtain the approximate region of face, by promoting the background luminance at whole interface of finding a view, it is possible to the brightest face is carried out quickly Focusing, thus complete to take pictures.
When taking pictures in the case of being in background and being dark, can only probably estimate the region of face, by promoting whole finding a view The background luminance at interface, in conjunction with the face area having been estimated that, can quickly focus, substantially reduce used by focusing Time, improve speed of taking pictures.
In the case of taking pictures at a distance, the approximate location of focusing area can only be estimated, by promoting whole boundary of finding a view The background luminance in face, obtains more accurate focusing area, is more quickly completed focus process.
Terminal provided by the present invention, utilizes and highlights the background of shooting to be rapidly performed by the right of target area to be captured Jiao, such that it is able to be accurately obtained the position of target to be captured, be rapidly completed and take pictures, so bringing great side to user Just.The application practicality is relatively strong, can be effectively improved user experience.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, between each embodiment, same or similar part sees mutually.For filling disclosed in embodiment For putting, owing to it corresponds to the method disclosed in Example, so describe is fairly simple, relevant part sees method part Illustrate.
Professional further appreciates that, in conjunction with the unit of each example that the embodiments described herein describes And algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and The interchangeability of software, the most generally describes composition and the step of each example according to function.These Function performs with hardware or software mode actually, depends on application-specific and the design constraint of technical scheme.Specialty Technical staff specifically should can be used for using different methods to realize described function to each, but this realization should not Think beyond the scope of this invention.
The method described in conjunction with the embodiments described herein or the step of algorithm can direct hardware, processor be held The software module of row, or the combination of the two implements.Software module can be placed in random access memory (RAM), internal memory, read-only deposit Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology In any other form of storage medium well known in field.
Above image pickup method provided by the present invention, device and mobile terminal are described in detail.Herein should Being set forth principle and the embodiment of the present invention by specific case, the explanation of above example is only intended to help reason Solve method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, without departing from On the premise of the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into this In bright scope of the claims.

Claims (10)

1. an image pickup method, it is characterised in that including:
Receive the shooting instruction that user triggers, obtain current shooting picture;
Extract the profile information of target to be captured in described current shooting picture;
By the brightness regulation of described current shooting picture to predetermined luminance value, to lighten the background of described target to be captured;
According to described profile information, described target to be captured is focused, complete the shooting to described current shooting picture.
2. image pickup method as claimed in claim 1, it is characterised in that by the brightness regulation of described current shooting picture in advance If also including before brightness value:
The unlatching receiving user's input lightens the triggering command of background mode automatically, enters and automatically lightens background mode.
3. image pickup method as claimed in claim 1, it is characterised in that by the brightness regulation of described current shooting picture in advance If also including before brightness value:
Obtain the brightness value of described current shooting picture, when described brightness value is less than predetermined luminance threshold value, enters and automatically lighten Background mode or output point out described user to open the information lightening background mode.
4. the image pickup method as described in any one of claims 1 to 3, it is characterised in that described extraction described current shooting picture In the profile information of target to be captured include:
Described current shooting picture is carried out image pretreatment operation;
Image through pretreatment operation is carried out feature extraction, obtains the profile information of described target to be captured.
5. image pickup method as claimed in claim 4, it is characterised in that the described brightness regulation by described current shooting picture is extremely Predetermined luminance value includes:
Obtain the brightness value of described current shooting picture;
According to the corresponding relation of the brightness value pre-build with regulation parameter, by the brightness regulation of described current shooting picture to institute State predetermined luminance value.
6. a filming apparatus, it is characterised in that including:
Current shooting picture acquisition module, for receiving the shooting instruction that user triggers, obtains current shooting picture;
Profile extraction module, for extracting the profile information of target to be captured in described current shooting picture;
Adjustment module, is used for the brightness regulation of described current shooting picture to predetermined luminance value, to lighten described mesh to be captured Target background;
Taking module, for focusing described target to be captured according to described profile information, completes described current shooting The shooting of picture.
7. filming apparatus as claimed in claim 6, it is characterised in that also include:
Active module, for before by the brightness regulation of described current shooting picture to predetermined luminance value, receives user's input Unlatching automatically lighten the triggering command of background mode, enter and automatically lighten background mode;Or obtain described current shooting to draw The brightness value in face, when described brightness value is less than predetermined luminance threshold value, enters and automatically lightens described in background mode or output prompting User opens the information lightening background mode.
Filming apparatus the most as claimed in claims 6 or 7, it is characterised in that described profile extraction module includes:
Pretreatment unit, for carrying out image pretreatment operation to described current shooting picture;
Extraction unit, for the image through pretreatment operation is carried out feature extraction, obtains the profile of described target to be captured Information.
9. filming apparatus as claimed in claim 8, it is characterised in that described adjustment module includes:
Brightness value acquiring unit, for obtaining the brightness value of described current shooting picture;
Regulation unit, for the corresponding relation according to the brightness value pre-build with regulation parameter, by described current shooting picture Brightness regulation to described predetermined luminance value.
10. a mobile terminal, it is characterised in that include the filming apparatus as described in any one of claim 6 to 9.
CN201610852188.1A 2016-09-26 2016-09-26 A kind of image pickup method, device and mobile terminal Active CN106161970B (en)

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CN114554086A (en) * 2022-02-10 2022-05-27 支付宝(杭州)信息技术有限公司 Auxiliary shooting method and device and electronic equipment

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