CN105120150A - Photographing device for automatically prompting photographing direction adjustment on the basis of exposure and method thereof - Google Patents
Photographing device for automatically prompting photographing direction adjustment on the basis of exposure and method thereof Download PDFInfo
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- CN105120150A CN105120150A CN201510508220.XA CN201510508220A CN105120150A CN 105120150 A CN105120150 A CN 105120150A CN 201510508220 A CN201510508220 A CN 201510508220A CN 105120150 A CN105120150 A CN 105120150A
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Abstract
The invention discloses a photographing device for automatically prompting photographing direction adjustment on the basis of exposure and a method thereof. The photographing comprises a lens, a light detecting module and a processing module. The processing module is connected with the light detecting module. The light detecting module is used for detecting the exposure of the lens. The processing module is used for determining whether the exposure is equal to a preset threshold value, and if not, computing lens adjusting direction and angle in order to remind a user to adjust the lens direction and angle. The device may remind the user to adjust the lens direction and angle so as to improve user experience.
Description
Technical field
The present invention relates to technique for taking field, particularly relate to a kind of filming apparatus and method thereof of automatically reminding adjustment shooting direction based on exposure.
Background technology
At present, user, when taking pictures, due to angle or the shooting environmental of shooting, occurs that the light-inletting quantity of the camera lens of filming apparatus is not enough, and causes the effect of the photo taking out bad.
In prior art, user is when shooting picture existence is obviously partially dark, and the subjective sensation with oneself judges that the light-inletting quantity of camera lens is not enough, therefore needs the camera lens carrying out follow shot device through all directions of being everlasting, to find the angle of proper shooting, and then reduce the experience effect of user.
Summary of the invention
Embodiments provide and a kind ofly automatically remind the adjustment filming apparatus of shooting direction and method thereof based on exposure, can the direction of reminding user adjustment camera lens and angle, improve the experience effect of user.
The invention provides a kind of filming apparatus automatically reminding adjustment shooting direction based on exposure, it comprises camera lens, light-metering module and processing module, processing module and light-metering model calling, light-metering module is used for the exposure of detector lens, and processing module is for judging the threshold value whether exposure equals default; If not, then processing module calculates direction and the angle of camera lens adjustment, with the direction of reminding user adjustment camera lens and angle.
Wherein, filming apparatus comprises the prompting module be connected with processing module further, for the angle and direction of reminding user adjustment camera lens.
Wherein, the threshold value preset is 18 degree, the gray scale of processing module calculation exposure degree, and judges whether gray scale equals 18 degree.
Wherein, the threshold value preset is 18 degree, the reflectivity of processing module calculation exposure degree, and judges whether reflectivity equals 18 degree.
Wherein, light-metering module is further used for the light-inletting quantity of detector lens and the incidence angle of light, and processing module calculates according to light-inletting quantity and incidence angle, obtains direction and the angle of camera lens adjustment.
Wherein, filming apparatus comprises display screen further, and for showing the incidence angle of the current incidence angle of camera lens and adjustment rear lens, behind the direction and angle of adjustment camera lens, the incidence angle of the incidence angle that camera lens is current and adjustment rear lens overlaps.
The present invention also provides a kind of filming apparatus automatically to remind the method for adjustment shooting direction based on exposure, and it comprises:
Detect the exposure of the camera lens of filming apparatus;
Judge the threshold value whether exposure equals default;
If not, then calculate direction and the angle of camera lens adjustment, with the direction of reminding user adjustment camera lens and angle.
Wherein, the direction and the angle that calculate camera lens adjustment comprise:
The light-inletting quantity of detector lens and the incidence angle of light;
Calculate according to light-inletting quantity and incidence angle, obtain direction and the angle of camera lens adjustment.
Wherein, judge whether exposure equals default threshold value and comprise:
The threshold value preset is 18 degree;
The gray scale of calculation exposure degree, and judge whether gray scale equals 18 degree.
Wherein, judge whether exposure equals default threshold value and comprise:
The threshold value preset is 18 degree;
The reflectivity of calculation exposure degree, and judge whether reflectivity equals 18 degree.
By such scheme, the invention has the beneficial effects as follows: the present invention is by the exposure of light-metering module detector lens, and processing module judges the threshold value whether exposure equals default; If not, then processing module calculates direction and the angle of camera lens adjustment, with the direction of reminding user adjustment camera lens and angle, can reach better shooting effect, and improve the experience effect of user.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can be obtained further according to these accompanying drawings.Wherein:
Fig. 1 is the structural representation of the filming apparatus of first embodiment of the invention;
Fig. 2 is the filming apparatus of first embodiment of the invention the reminds adjustment shooting direction automatically flow chart of method based on exposure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under performing creative labour prerequisite, belong to the scope of protection of the invention.
Shown in Figure 1, Fig. 1 is the structural representation of the filming apparatus of first embodiment of the invention.As described in Figure 1, filming apparatus 10 comprises camera lens 11, light-metering module 12, processing module 13, prompting module 14 and display screen 15.Camera lens 11 is connected with light-metering module 12, and processing module 13 is connected with light-metering module 12, prompting module 14 and display module 15 respectively.
When user is taken by filming apparatus 10, open the camera lens 11 of filming apparatus 10, filming apparatus 10 obtains picture by camera lens 11; Light-metering module 12 is for the exposure of detector lens 11.Particularly, expose for light intensity is multiplied by the time that light acts on, wherein light intensity refers to the intensity that the photographic film of filming apparatus 10 irradiates by light, i.e. illumination; The time that light acts on refers to the time that photographic film is irradiated by light, i.e. the time for exposure.Preferably, light-metering module 12 is light filling transducer.
Processing module 13 obtains exposure from light-metering module 12, and for judging the threshold value whether exposure equals default.If processing module 13 determines the threshold value that exposure equals default, then processing module 13 keeps the posture of shooting by prompting module 14 reminding user, to complete shooting; If processing module 13 determines exposure be not equal to default threshold value, then processing module 13 calculates direction and the angle of camera lens 11 adjustment, and is adjusted direction and the angle of camera lens 11 by prompting module 14 reminding user.
Light-metering module 12 is further used for the light-inletting quantity of detector lens 11 and the incidence angle of light, the light-inletting quantity of i.e. light-metering module 12 detector lens 11 in different azimuth, the light-inletting quantity of the light-inletting quantity of such as detector lens 11 left, the light-inletting quantity of right, the light-inletting quantity of top and below, and detect that the incidence angle of light is θ.Processing module 13 obtains the incidence angle θ of the light-inletting quantity of camera lens 11 left, the light-inletting quantity of right, the light-inletting quantity of top, the light-inletting quantity of below and light from light-metering module 12, and judging the magnitude relationship of light-inletting quantity of the light-inletting quantity of left, the light-inletting quantity of right, the light-inletting quantity of top and below, the pass that such as processing module 13 determines is: the light-inletting quantity of the light-inletting quantity > right below the light-inletting quantity > above the light-inletting quantity > of left.
When processing module 13 determine exposure be not equal to default threshold value time, processing module 13 determines exposure further and is less than threshold value, then processing module 13 can need the angle of adjustment to equal (threshold value-exposure) * θ/exposure by preresearch estimates camera lens; It is (threshold value-exposure) * θ/exposure that processing module 13 needs the angle that camera lens 11 adjusts left by prompting module 14 reminding user.Processing module 13 determines exposure further and is greater than threshold value, then processing module 13 can estimate that camera lens needs the angle of adjustment to equal (exposure-threshold value) * θ/exposure; It is (exposure-threshold value) * θ/exposure that processing module 13 needs the angle that camera lens 11 adjusts to the right by prompting module 14 reminding user.
Prompting module 14 is preferably loud speaker, and prompting module 14 adjusts direction and the angle of camera lens 11 by voice message user.Such as, processing module 12 keeps shooting posture by prompting module 14 reminding user, and namely prompting module 14 is by voice " maintenance posture " reminding user; Processing module 13 adjusts direction and the angle of camera lens 11 by prompting module 14 reminding user, and namely prompting module 14 is by voice " to * * direction adjustment * * angle " reminding user.
Preferably, the threshold value preset is 18 degree.Wherein, the gray scale of processing module 13 calculation exposure degree, processing module 12 judges the threshold value whether exposure equals default, and namely processing module 12 judges whether the gray scale of exposure equals 18 degree.Based on the light-metering algorithm of 18 degree of ashes, processing module 13 judges whether the exposure of picture is applicable to, current optimal gray scale is the average gray of the picture be taken is 18 degree.The general principle of 18 degree of ashes is that the reflectivity of subject is stronger, the picture taken is brighter, and pure white reflectivity is 100%, and the reflectivity of black is 0, gray scale reflectivity between pure white and black is 18%, therefore adopts middle gray can reach good overall shooting effect.
In other embodiments of the invention, the reflectivity of processing module 13 calculation exposure degree, processing module 13 judges the threshold value whether exposure equals default, and namely processing module 12 judges whether the reflectivity of exposure equals 18 degree.
Display screen 14 is for showing the incidence angle of the camera lens 11 after the current incidence angle θ of camera lens 11 and adjustment, and behind the direction that user adjusts camera lens 11 and angle, the incidence angle of the incidence angle that on display screen 14, the camera lens 11 of display is current and adjustment rear lens 11 is overlapping.In addition, display screen 14 also for show camera lens 11 obtain picture, the incidence angle θ that wherein camera lens 11 is current and adjustment after camera lens 11 incidence angle by suspend form display on this screen.
User, according to the direction of the automatic prompting adjustment camera lens 11 of filming apparatus 10 and angle, obtains better shooting effect to make filming apparatus 10.
The present embodiment is by the exposure of light-metering module 12 detector lens 11, and processing module 13 judges the threshold value whether exposure equals default; If not, then processing module 13 calculates direction and the angle of camera lens 11 adjustment, and with the direction of reminding user adjustment camera lens 11 and angle, therefore filming apparatus 10 automatically prompting user adjusts direction and the angle of camera lens 11, better shooting effect can be reached, and improve the experience effect of user.
The present invention also provides a kind of filming apparatus automatically to remind the method for adjustment shooting direction based on exposure, and its filming apparatus 10 disclosed based on the first embodiment is described.As shown in Figure 2, the method that the present embodiment discloses comprises:
S201: filming apparatus 10 detects the exposure of the camera lens 11 of filming apparatus 10;
S202: filming apparatus 10 judges the threshold value whether exposure equals default;
S203: if not, then filming apparatus 10 calculates direction and the angle of camera lens 11 adjustment, with the direction of reminding user adjustment camera lens 11 and angle.
In step s 201, when user is taken by filming apparatus 10, open the camera lens 11 of filming apparatus 10, filming apparatus 10 obtains picture by camera lens 11.
In step S202, if filming apparatus 10 determines the threshold value that exposure equals default, then filming apparatus 10 reminding user keeps the posture of shooting, to complete shooting.
Preferably, the threshold value preset is 18 degree.Wherein, the gray scale of filming apparatus 10 calculation exposure degree, and judge the threshold value whether exposure equals default, namely filming apparatus 10 judges whether the gray scale of exposure equals 18 degree.Based on the light-metering algorithm of 18 degree of ashes, filming apparatus 10 judges whether the exposure of picture is applicable to, current optimal gray scale is the average gray of the picture be taken is 18 degree.The general principle of 18 degree of ashes is that the reflectivity of subject is stronger, the picture taken is brighter, and pure white reflectivity is 100%, and the reflectivity of black is 0, gray scale reflectivity between pure white and black is 18%, therefore adopts middle gray can reach good overall shooting effect.
In other embodiments of the invention, the reflectivity of filming apparatus 10 calculation exposure degree, and judge the threshold value whether exposure equals default, namely filming apparatus 10 judges whether the reflectivity of exposure equals 18 degree.
In step S203, filming apparatus 10 is the light-inletting quantity of detector lens 11 and the incidence angle of light further, the i.e. light-inletting quantity of filming apparatus 10 detector lens 11 in different azimuth, the light-inletting quantity of the light-inletting quantity of such as detector lens 11 left, the light-inletting quantity of right, the light-inletting quantity of top and below, and detect that the incidence angle of light is θ.Filming apparatus 10 judges the magnitude relationship of light-inletting quantity of the light-inletting quantity of left, the light-inletting quantity of right, the light-inletting quantity of top and below, and the pass that such as filming apparatus 10 determines is: the light-inletting quantity of the light-inletting quantity > right below the light-inletting quantity > above the light-inletting quantity > of left.
When filming apparatus 10 determine exposure be not equal to default threshold value time, filming apparatus 10 determines exposure further and is less than threshold value, then filming apparatus 10 can need the angle of adjustment to equal (threshold value-exposure) * θ/exposure by preresearch estimates camera lens; It is (threshold value-exposure) * θ/exposure that filming apparatus 10 reminding user needs the angle that camera lens 11 adjusts left.Filming apparatus 10 determines exposure further and is greater than threshold value, then filming apparatus 10 can estimate that camera lens needs the angle of adjustment to equal (exposure-threshold value) * θ/exposure; It is (exposure-threshold value) * θ/exposure that filming apparatus 10 reminding user needs the angle that camera lens 11 adjusts to the right.
User, according to the direction of the automatic prompting adjustment camera lens 11 of filming apparatus 10 and angle, obtains better shooting effect to make filming apparatus 10.
In sum, the present invention is by the exposure of light-metering module detector lens, and processing module judges the threshold value whether exposure equals default; If not, then processing module calculates direction and the angle of camera lens adjustment, and with the direction of reminding user adjustment camera lens and angle, therefore filming apparatus 10 automatically prompting user adjusts direction and the angle of camera lens 11, better shooting effect can be reached, and improve the experience effect of user.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. automatically remind the filming apparatus of adjustment shooting direction based on exposure for one kind, it is characterized in that, described filming apparatus comprises camera lens, light-metering module and processing module, described processing module and described light-metering model calling, described light-metering module is for detecting the exposure of described camera lens, and described processing module is for judging the threshold value whether described exposure equals default; If not, then described processing module calculates direction and the angle of described camera lens adjustment, adjusts direction and the angle of described camera lens with reminding user.
2. filming apparatus according to claim 1, is characterized in that, described filming apparatus comprises the prompting module be connected with described processing module further, adjusts the angle and direction of described camera lens for reminding user.
3. filming apparatus according to claim 1, is characterized in that, described default threshold value is 18 degree, and described processing module calculates the gray scale of described exposure, and judges whether described gray scale equals 18 degree.
4. filming apparatus according to claim 1, is characterized in that, described default threshold value is 18 degree, and described processing module calculates the reflectivity of described exposure, and judges whether described reflectivity equals 18 degree.
5. filming apparatus according to claim 1, it is characterized in that, described light-metering module is further used for detecting the light-inletting quantity of described camera lens and the incidence angle of light, and described processing module calculates according to described light-inletting quantity and described incidence angle, obtains direction and the angle of the adjustment of described camera lens.
6. filming apparatus according to claim 5, it is characterized in that, described filming apparatus comprises display screen further, for showing the incidence angle of the current incidence angle of described camera lens and the rear described camera lens of adjustment, behind the direction and angle of the described camera lens of adjustment, the incidence angle of the incidence angle that described camera lens is current and the rear described camera lens of adjustment overlaps.
7. filming apparatus reminds a method for adjustment shooting direction automatically based on exposure, and it is characterized in that, described method comprises:
Detect the exposure of the camera lens of described filming apparatus;
Judge the threshold value whether described exposure equals default;
If not, then calculate direction and the angle of described camera lens adjustment, adjust direction and the angle of described camera lens with reminding user.
8. method according to claim 7, is characterized in that, direction and the angle of the described camera lens adjustment of described calculating comprise:
Detect the light-inletting quantity of described camera lens and the incidence angle of light;
Calculate according to described light-inletting quantity and described incidence angle, obtain direction and the angle of described camera lens adjustment.
9. method according to claim 7, is characterized in that, describedly judges whether described exposure equals default threshold value and comprise:
Described default threshold value is 18 degree;
Calculate the gray scale of described exposure, and judge whether described gray scale equals 18 degree.
10. method according to claim 7, is characterized in that, describedly judges whether described exposure equals default threshold value and comprise:
Described default threshold value is 18 degree;
Calculate the reflectivity of described exposure, and judge whether described reflectivity equals 18 degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510508220.XA CN105120150B (en) | 2015-08-18 | 2015-08-18 | Shooting device and method for automatically reminding adjustment of shooting direction based on exposure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510508220.XA CN105120150B (en) | 2015-08-18 | 2015-08-18 | Shooting device and method for automatically reminding adjustment of shooting direction based on exposure |
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| CN105120150A true CN105120150A (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105635573A (en) * | 2015-12-29 | 2016-06-01 | 小米科技有限责任公司 | Pick-up head visual angle adjusting method and apparatus |
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| US20060216012A1 (en) * | 2005-03-22 | 2006-09-28 | Lee-Ren Kuo | Method for focusing by using a pre-flash |
| CN103324033A (en) * | 2012-03-23 | 2013-09-25 | 盛乐信息技术（上海）有限公司 | Exposure method and exposure system |
| CN103491307A (en) * | 2013-10-07 | 2014-01-01 | 厦门美图网科技有限公司 | Intelligent selfie method through rear camera |
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- 2015-08-18 CN CN201510508220.XA patent/CN105120150B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060216012A1 (en) * | 2005-03-22 | 2006-09-28 | Lee-Ren Kuo | Method for focusing by using a pre-flash |
| CN103324033A (en) * | 2012-03-23 | 2013-09-25 | 盛乐信息技术（上海）有限公司 | Exposure method and exposure system |
| CN103491307A (en) * | 2013-10-07 | 2014-01-01 | 厦门美图网科技有限公司 | Intelligent selfie method through rear camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105635573A (en) * | 2015-12-29 | 2016-06-01 | 小米科技有限责任公司 | Pick-up head visual angle adjusting method and apparatus |
| CN105635573B (en) * | 2015-12-29 | 2019-05-14 | 小米科技有限责任公司 | Camera visual angle regulating method and device |
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| CN105120150B (en) | 2020-06-02 |
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