CN105120150B - Shooting device and method for automatically reminding adjustment of shooting direction based on exposure - Google Patents
Shooting device and method for automatically reminding adjustment of shooting direction based on exposure Download PDFInfo
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- CN105120150B CN105120150B CN201510508220.XA CN201510508220A CN105120150B CN 105120150 B CN105120150 B CN 105120150B CN 201510508220 A CN201510508220 A CN 201510508220A CN 105120150 B CN105120150 B CN 105120150B
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Abstract
The invention discloses a shooting device and a method for automatically reminding and adjusting shooting direction based on exposure. The shooting device comprises a lens, a photometric module and a processing module, wherein the processing module is connected with the photometric module, the photometric module is used for detecting the exposure of the lens, and the processing module is used for judging whether the exposure is equal to a preset threshold value or not; if not, the processing module calculates the direction and the angle of the lens adjustment so as to remind a user to adjust the direction and the angle of the lens. Through the mode, the method and the device can remind the user to adjust the direction and the angle of the lens, and improve the experience effect of the user.
Description
Technical Field
The invention relates to the technical field of shooting, in particular to a shooting device and a method for automatically reminding and adjusting shooting direction based on exposure.
Background
At present, when a user takes a picture, due to the shooting angle or the shooting environment, the light entering amount of a lens of a shooting device is insufficient, and the effect of the shot picture is poor.
In the prior art, when a shot picture is obviously darker, a user judges that the light incoming amount of a lens is insufficient according to the subjective feeling of the user, so that the lens of the shooting device needs to be moved in all directions frequently to find a proper shooting angle, and the experience effect of the user is further reduced.
Disclosure of Invention
The embodiment of the invention provides a shooting device and method for automatically reminding a user of adjusting the shooting direction based on exposure, which can remind the user of adjusting the direction and angle of a lens and improve the experience effect of the user.
The invention provides a shooting device capable of automatically reminding and adjusting shooting direction based on exposure, which comprises a lens, a photometric module and a processing module, wherein the processing module is connected with the photometric module, the photometric module is used for detecting the exposure of the lens, and the processing module is used for judging whether the exposure is equal to a preset threshold value or not; if not, the processing module calculates the direction and the angle of the lens adjustment so as to remind a user to adjust the direction and the angle of the lens.
The shooting device further comprises a reminding module connected with the processing module and used for reminding a user of adjusting the angle and the direction of the lens.
Wherein, the preset threshold value is 18 degrees, the processing module calculates the gray scale of the exposure degree and judges whether the gray scale is equal to 18 degrees.
Wherein, the preset threshold is 18 degrees, the processing module calculates the reflectivity of the exposure and judges whether the reflectivity is equal to 18 degrees.
The processing module calculates according to the light entering amount and the incident angle, and obtains the direction and the angle of lens adjustment.
The shooting device further comprises a display screen for displaying the current incident angle of the lens and the incident angle of the adjusted lens, and after the direction and the angle of the lens are adjusted, the current incident angle of the lens coincides with the incident angle of the adjusted lens.
The invention also provides a method for automatically reminding the shooting device to adjust the shooting direction based on the exposure degree, which comprises the following steps:
detecting the exposure of a lens of a shooting device;
judging whether the exposure is equal to a preset threshold value or not;
if not, calculating the direction and angle of lens adjustment to remind the user to adjust the direction and angle of the lens.
Wherein, calculating the direction and angle of lens adjustment includes:
detecting the light entering amount of the lens and the incident angle of the light;
and calculating according to the light incoming quantity and the incident angle to obtain the direction and the angle of lens adjustment.
Wherein judging whether the exposure level is equal to a preset threshold value comprises:
the preset threshold value is 18 degrees;
the gray scale of the exposure is calculated and it is determined whether the gray scale is equal to 18 degrees.
Wherein judging whether the exposure level is equal to a preset threshold value comprises:
the preset threshold value is 18 degrees;
the reflectivity of the exposure is calculated and it is determined whether the reflectivity is equal to 18 degrees.
Through the scheme, the invention has the beneficial effects that: the exposure degree of the lens is detected through the light measuring module, and the processing module judges whether the exposure degree is equal to a preset threshold value or not; if not, the processing module calculates the direction and the angle of the lens adjustment so as to remind the user to adjust the direction and the angle of the lens, so that a better shooting effect can be achieved, and the experience effect of the user is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to further obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic structural view of a photographing apparatus according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for automatically reminding a camera to adjust a shooting direction based on exposure according to a first embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a photographing device according to a first embodiment of the invention. As shown in fig. 1, the photographing device 10 includes a lens 11, a photometry module 12, a processing module 13, a reminder module 14, and a display screen 15. The lens 11 is connected with the photometric module 12, and the processing module 13 is connected with the photometric module 12, the reminding module 14 and the display module 15 respectively.
When a user shoots through the shooting device 10, a lens 11 of the shooting device 10 is opened, and the shooting device 10 acquires a picture through the lens 11; the light metering module 12 is used for detecting the exposure of the lens 11. Specifically, the exposure is the light intensity multiplied by the time of the light, wherein the light intensity is the intensity of the light irradiated on the photosensitive film of the photographing device 10, i.e., the illumination intensity; the time during which the light is applied means the time during which the photosensitive film is exposed to the light, i.e., the exposure time. Preferably, the photometric module 12 is a fill light sensor.
The processing module 13 acquires the exposure level from the photometry module 12, and is used to determine whether the exposure level is equal to a preset threshold value. If the processing module 13 determines that the exposure level is equal to the preset threshold, the processing module 13 reminds the user to keep the shooting posture through the reminding module 14 to complete the shooting; if the processing module 13 determines that the exposure is not equal to the preset threshold, the processing module 13 calculates the direction and angle of the lens 11, and prompts the user to adjust the direction and angle of the lens 11 through the prompting module 14.
The photometric module 12 is further configured to detect the light entering amount of the lens 11 and the incident angle of the light, that is, the photometric module 12 detects the light entering amounts of the lens 11 in different orientations, for example, detects the light entering amount at the left, the light entering amount at the right, the light entering amount at the upper side, and the light entering amount at the lower side of the lens 11, and detects the incident angle of the light as θ. The processing module 13 obtains the light amount entering the left side, the light amount entering the right side, the light amount entering the upper side, the light amount entering the lower side, and the incident angle θ of the light from the photometry module 12, and determines the magnitude relationship between the light amount entering the left side, the light amount entering the right side, the light amount entering the upper side, and the light amount entering the lower side, for example, the relationship determined by the processing module 13 is: the left intake amount > the upper intake amount > the lower intake amount > the right intake amount.
When the processing module 13 determines that the exposure is not equal to the preset threshold, the processing module 13 further determines that the exposure is smaller than the threshold, and the processing module 13 may preliminarily estimate that the angle of the lens to be adjusted is equal to (threshold-exposure) × θ/exposure; the processing module 13 reminds the user of the angle (threshold-exposure) θ/exposure at which the lens 11 needs to be adjusted to the left through the reminding module 14. If the processing module 13 further determines that the exposure is greater than the threshold, the processing module 13 may estimate that the angle at which the lens needs to be adjusted is equal to (exposure-threshold) × θ/exposure; the processing module 13 reminds the user of the angle (exposure-threshold) θ/exposure at which the lens 11 needs to be adjusted to the right through the reminding module 14.
The reminding module 14 is preferably a speaker, and the reminding module 14 prompts the user to adjust the direction and the angle of the lens 11 through voice. For example, the processing module 12 reminds the user to keep the shooting gesture through the reminding module 14, that is, the reminding module 14 reminds the user of the "keep gesture" through voice; the processing module 13 reminds the user to adjust the direction and angle of the lens 11 through the reminding module 14, that is, the reminding module 14 reminds the user by "adjusting the direction and angle in the x direction" through voice.
Preferably, the preset threshold is 18 degrees. Wherein, the processing module 13 calculates the gray level of the exposure, and the processing module 12 determines whether the exposure is equal to the preset threshold, i.e. the processing module 12 determines whether the gray level of the exposure is equal to 18 degrees. The processing module 13 determines whether the exposure of the picture is suitable based on a photometric algorithm for 18-degree gray, and the currently most suitable gray is 18 degrees in average gray of the photographed picture. The 18-degree gray has the basic principle that the stronger the reflectivity of the shot object is, the brighter the shot picture is, the reflectivity of pure white is 100%, the reflectivity of pure black is 0, and the gray reflectivity between pure white and pure black is 18%, so that a better overall shooting effect can be achieved by adopting the middle gray.
In other embodiments of the present invention, the processing module 13 calculates the reflectivity of the exposure, and the processing module 13 determines whether the exposure is equal to a predetermined threshold, i.e. the processing module 12 determines whether the reflectivity of the exposure is equal to 18 degrees.
The display 14 is used for displaying the current incident angle θ of the lens 11 and the adjusted incident angle of the lens 11, and after the user adjusts the direction and angle of the lens 11, the current incident angle of the lens 11 and the adjusted incident angle of the lens 11 displayed on the display 14 overlap. In addition, the display 14 is also used for displaying a picture acquired by the lens 11, wherein the current incident angle θ of the lens 11 and the adjusted incident angle of the lens 11 are displayed on the picture in a floating manner.
The user adjusts the direction and angle of the lens 11 according to the automatic reminding of the shooting device 10, so that the shooting device 10 obtains better shooting effect.
In the present embodiment, the exposure of the lens 11 is detected by the light measuring module 12, and the processing module 13 determines whether the exposure is equal to a preset threshold; if not, the processing module 13 calculates the direction and angle of the lens 11 to remind the user to adjust the direction and angle of the lens 11, so that the shooting device 10 automatically reminds the user to adjust the direction and angle of the lens 11, a better shooting effect can be achieved, and the experience effect of the user is improved.
The invention also provides a method for automatically reminding the shooting device to adjust the shooting direction based on the exposure, which is described based on the shooting device 10 disclosed in the first embodiment. As shown in fig. 2, the method disclosed in this embodiment includes:
s201: the photographing device 10 detects an exposure of the lens 11 of the photographing device 10;
s202: the photographing device 10 determines whether the exposure level is equal to a preset threshold value;
s203: if not, the photographing device 10 calculates the direction and angle of the lens 11 adjustment to remind the user to adjust the direction and angle of the lens 11.
In step S201, when the user performs shooting through the shooting device 10, the lens 11 of the shooting device 10 is turned on, and the shooting device 10 acquires a screen through the lens 11.
In step S202, if the photographing apparatus 10 determines that the exposure level is equal to the preset threshold, the photographing apparatus 10 reminds the user to maintain the photographing posture to complete the photographing.
Preferably, the preset threshold is 18 degrees. Wherein the photographing device 10 calculates the gray scale of the exposure level and determines whether the exposure level is equal to a preset threshold, i.e., the photographing device 10 determines whether the gray scale of the exposure level is equal to 18 degrees. The imaging device 10 determines whether the exposure of the screen is appropriate based on a photometric algorithm for 18-degree gray scale, and the currently most appropriate gray scale is 18 degrees in average gray scale of the captured screen. The 18-degree gray has the basic principle that the stronger the reflectivity of the shot object is, the brighter the shot picture is, the reflectivity of pure white is 100%, the reflectivity of pure black is 0, and the gray reflectivity between pure white and pure black is 18%, so that a better overall shooting effect can be achieved by adopting the middle gray.
In other embodiments of the present invention, the camera 10 calculates the reflectivity of the exposure and determines whether the exposure is equal to a predetermined threshold, i.e., the camera 10 determines whether the reflectivity of the exposure is equal to 18 degrees.
In step S203, the imaging device 10 further detects the amount of light entering the lens 11 and the incident angle of the light beam, that is, the imaging device 10 detects the amount of light entering the lens 11 in different directions, for example, detects the amount of light entering the left, the amount of light entering the right, the amount of light entering the upper side, and the amount of light entering the lower side of the lens 11, and detects that the incident angle of the light beam is θ. The imaging device 10 determines the relationship between the amount of light entering from the left, the amount of light entering from the right, the amount of light entering from the upper side, and the amount of light entering from the lower side, for example, the relationship determined by the imaging device 10 is: the left intake amount > the upper intake amount > the lower intake amount > the right intake amount.
When the photographing device 10 determines that the exposure level is not equal to the preset threshold, the photographing device 10 further determines that the exposure level is less than the threshold, and the photographing device 10 may preliminarily estimate that the angle of the lens to be adjusted is equal to (threshold-exposure level) × θ/exposure level; the camera 10 alerts the user that the angle at which the lens 11 needs to be adjusted to the left is (threshold-exposure) × θ/exposure. If the photographing device 10 further determines that the exposure is greater than the threshold, the photographing device 10 may estimate that the angle at which the lens needs to be adjusted is equal to (exposure-threshold) × θ/exposure; the photographing device 10 reminds the user of the angle (exposure-threshold) θ/exposure at which the lens 11 needs to be adjusted to the right.
The user adjusts the direction and angle of the lens 11 according to the automatic reminding of the shooting device 10, so that the shooting device 10 obtains better shooting effect.
In summary, the exposure of the lens is detected by the light measuring module, and the processing module determines whether the exposure is equal to a preset threshold; if not, the processing module calculates the direction and angle of the lens adjustment to remind the user to adjust the direction and angle of the lens, so that the shooting device 10 automatically reminds the user to adjust the direction and angle of the lens 11, a better shooting effect can be achieved, and the experience effect of the user is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The shooting device capable of automatically reminding and adjusting the shooting direction based on the exposure is characterized by comprising a lens, a light metering module and a processing module, wherein the processing module is connected with the light metering module, the light metering module is used for detecting the exposure of the lens, and the processing module is used for judging whether the exposure is equal to a preset threshold value or not; if not, the processing module calculates the direction and the angle of the lens adjustment so as to remind a user to adjust the direction and the angle of the lens;
the processing module calculates according to the light entering amount and the incident angle, and obtains the direction and the angle of the lens adjustment;
the processing module acquires the light inlet quantity at the left side, the light inlet quantity at the right side, the light inlet quantity at the upper side, the light inlet quantity at the lower side and the incident angle theta from the light metering module, when the processing module judges that the light inlet quantity at the left side is larger than the light inlet quantity at the upper side and the light inlet quantity at the lower side is larger than the light inlet quantity at the right side, and when the processing module judges that the exposure degree is not equal to the preset threshold value, the processing module further judges that the exposure degree is smaller than the threshold value, the processing module calculates that the adjusted angle is equal to (threshold value-exposure degree) theta/exposure degree, and the adjusted direction is towards the left; the processing module further determines that the exposure is greater than the threshold, and then the processing module calculates that the adjusted angle is equal to (exposure-threshold) × θ/exposure, and the adjusted direction is rightward.
2. The camera of claim 1, further comprising a reminding module connected to the processing module for reminding a user to adjust the angle and direction of the lens.
3. The camera of claim 1, wherein the predetermined threshold is 18 degrees, and the processing module calculates a gray level of the exposure level and determines whether the gray level is equal to 18 degrees.
4. The camera of claim 1, wherein the predetermined threshold is 18 degrees, and the processing module calculates the reflectivity of the exposure and determines whether the reflectivity is equal to 18 degrees.
5. The camera of claim 1, further comprising a display screen for displaying a current incident angle of the lens and an adjusted incident angle of the lens, wherein the current incident angle of the lens and the adjusted incident angle of the lens coincide after the adjustment of the direction and angle of the lens.
6. A method for automatically reminding a shooting device to adjust a shooting direction based on exposure is characterized by comprising the following steps:
detecting exposure of a lens of the shooting device;
judging whether the exposure is equal to a preset threshold value or not;
if not, detecting the light entering amount and the incident angle of the light rays of the lens, and calculating according to the light entering amount and the incident angle to obtain the direction and the angle of the lens adjustment so as to remind a user to adjust the direction and the angle of the lens;
the detecting the light entering amount of the lens and the incident angle of the light ray comprises:
acquiring the light entering quantity at the left side of the lens, the light entering quantity at the right side of the lens, the light entering quantity at the upper side, the light entering quantity at the lower side and the incident angle theta;
the calculating according to the light entering amount and the incident angle, and the obtaining of the direction and the angle of the lens adjustment comprises:
when the light inlet quantity on the left side is judged to be larger than the light inlet quantity on the upper side and the light inlet quantity on the lower side is judged to be larger than the light inlet quantity on the right side, and when the exposure is judged to be not equal to the preset threshold value and the exposure is smaller than the threshold value, calculating that the adjusted angle is equal to (threshold value-exposure) theta/exposure, wherein the adjusted direction is towards the left; and if the exposure is judged to be larger than the threshold, calculating that the adjusted angle is equal to (exposure-threshold) theta/exposure, and the adjusted direction is rightward.
7. The method of claim 6, wherein determining whether the exposure level is equal to a preset threshold comprises:
the preset threshold value is 18 degrees;
the gray scale of the exposure level is calculated, and it is determined whether the gray scale is equal to 18 degrees.
8. The method of claim 6, wherein determining whether the exposure level is equal to a preset threshold comprises:
the preset threshold value is 18 degrees;
the reflectivity of the exposure is calculated and it is determined whether the reflectivity is equal to 18 degrees.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| TWI265368B (en) * | 2005-03-22 | 2006-11-01 | Compal Electronics Inc | Method of using flash light pre-flash for focus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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