CN113824891B - Camera, light supplementing method, device and medium thereof - Google Patents
Camera, light supplementing method, device and medium thereof Download PDFInfo
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- CN113824891B CN113824891B CN202010565624.3A CN202010565624A CN113824891B CN 113824891 B CN113824891 B CN 113824891B CN 202010565624 A CN202010565624 A CN 202010565624A CN 113824891 B CN113824891 B CN 113824891B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The embodiment of the invention discloses a camera, and a light supplementing method, device and medium thereof. The method comprises the following steps: controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens into a preset coordinate system to obtain the coordinate position of the lens; determining a target light supplementing lamp group nearest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in a preset coordinate system; each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotating angle range of the lens in the vertical direction; determining an included angle value between the first straight line and a horizontal axis in a preset coordinate system, and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in a preset coordinate system. The invention ensures the uniformity of the light filling for the camera.
Description
Technical Field
The embodiment of the invention relates to the technical field of camera light filling, in particular to a camera and a light filling method, device and medium thereof.
Background
Under the condition of insufficient light intensity, the image shot by the camera is not clear, more noise exists, and the image quality is poor. Therefore, light compensation for the camera is required to improve image quality.
At present, when the camera is subjected to light filling, a light filling lamp is placed around a sphere where a lens of the camera is located, as shown in fig. 1, so that when the lens rotates, the light filling lamp performs brightness adjustment along with the rotation angle of the lens, and the light filling of the camera is relatively uniform. However, when the lens of the camera is rotated in the vertical direction and rotated to the boundary position of the vertical rotation angle, such a light supplementing manner is liable to occur in a case where the light supplementing to the camera is not uniform.
Disclosure of Invention
The embodiment of the invention provides a camera, and a light supplementing method, device and medium thereof, which ensure the uniformity of light supplementing of the camera.
In a first aspect, an embodiment of the present invention provides a light supplementing method for a camera, including:
controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens into a preset coordinate system to obtain the coordinate position of the lens;
determining a target light supplementing lamp group nearest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
Determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
In a second aspect, an embodiment of the present invention provides a light supplementing device for a camera, including:
the control module is used for controlling the lens to rotate in the vertical direction and mapping the position of the rotated lens into a preset coordinate system so as to obtain the coordinate position of the lens;
the determining module is used for determining the target light supplementing lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
the light supplementing module is used for determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
In a third aspect, an embodiment of the present invention further provides a camera, including:
the light supplementing lamp groups are used for supplementing light to the lens of the camera;
one or more processors;
a memory for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for light filling of a camera according to any one of the embodiments of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the program when executed by a processor implements the light supplementing method of the camera according to any one of the embodiments of the present invention.
The technical scheme disclosed by the embodiment of the invention has the following beneficial effects:
the method comprises the steps of controlling a camera lens to rotate in the vertical direction, mapping the rotated position of the camera lens to a preset coordinate system to obtain the coordinate position of the camera lens, determining a target light supplementing lamp group closest to the camera lens according to the coordinate position of the camera lens and the coordinate positions of a plurality of light supplementing lamp groups in the preset coordinate system, and controlling at least two light supplementing lamps in the target light supplementing lamp group to supplement light for the camera lens according to the included angle value between a first straight line where the camera lens is located and a horizontal axis in the preset coordinate system, wherein the light supplementing angle of each light supplementing lamp group is determined according to the light supplementing angle union of the at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the camera lens in the vertical direction. Therefore, the light supplementing lamp group with the light supplementing angle larger than the rotation angle range of the lens in the vertical direction supplements light for the lens of the camera, so that the lens of the camera rotates to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for obtaining high-quality images.
Drawings
Fig. 1 is a schematic diagram of a related art structure in which a light supplement lamp is placed around a lens of a camera;
fig. 2 (a) is a schematic structural diagram of a light compensating lamp set disposed around a lens of a camera according to an embodiment of the present invention;
fig. 2 (b) -fig. 2 (c) are schematic structural diagrams of arrangement modes of two light compensating lamps in a light compensating lamp group according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a light supplementing method of a camera according to an embodiment of the present invention;
fig. 4 is a flowchart of another method for supplementing light to a camera according to an embodiment of the present invention;
fig. 4 (a) is a schematic diagram of establishing a preset coordinate system and dividing a light filling angle of a target light filling lamp group into a plurality of sub light filling angles according to an embodiment of the present invention;
fig. 5 is a flowchart of a light supplementing method of another camera according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a light compensating device of a camera according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a video camera according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not limiting of embodiments of the invention. It should be further noted that, for convenience of description, only some, but not all of the structures related to the embodiments of the present invention are shown in the drawings.
The camera, the light supplementing method, the light supplementing device and the medium according to the embodiment of the invention are described in detail below with reference to the accompanying drawings. In order to clearly describe the embodiments of the present invention, first, in the embodiments of the present invention, a light compensating lamp group is disposed around a lens of a camera. For example, as shown in fig. 2 (a), by presetting one light compensating lamp at each of the light compensating lamp deployment positions in the related art, the light compensating lamp groups including at least two light compensating lamps are optimized so that the light compensating angle of each light compensating lamp group is larger than the rotation angle range of the camera in the vertical direction, so that when the camera rotates to any angle position, the camera can be uniformly supplemented with light by the light compensating lamp groups. The light supplementing angles of at least two light supplementing lamps in the light supplementing lamp group are identical in size, the deployment positions are not overlapped, and namely the light supplementing angles of all the light supplementing lamps are not overlapped in orientation. In this embodiment, a greater number of preset light compensating lamp disposition positions may be provided around the lens, which is not particularly limited herein, for example, 5 preset light compensating lamp disposition positions are provided.
The arrangement of at least two light compensating lamps in each light compensating lamp group in this embodiment will be described with reference to fig. 2 (b) and 2 (c). Assuming that each light compensating lamp group includes two light compensating lamps, namely, a light compensating lamp 1 and a light compensating lamp 2, as shown in fig. 2 (b), the light compensating lamps 1 and 2 can be respectively disposed on two identical light compensating lamp panels, wherein the light compensating angles of the light compensating lamps on the two light compensating lamp panels are identical in size, and the disposed positions are not coincident. I.e. the light filling angle orientations of the light filling lamp 1 and the light filling lamp 2 do not coincide. As another example, as shown in fig. 2 (c), the light compensating lamps 1 and 2 are disposed on the same light compensating plate, wherein the light compensating angles of the light compensating lamps 1 and 2 are the same but the directions of the light compensating angles do not overlap. In the present embodiment, the light supplement angles of the light supplement lamp 1 and the light supplement lamp 2 may be determined according to the light supplement lamp attribute. Namely, the light supplementing lamps with different light supplementing angles can be selected according to actual needs, and the light supplementing operation is carried out on the camera.
Referring to fig. 3, a light supplementing method of a camera according to an embodiment of the present invention is described below. Fig. 3 is a flowchart of a light supplementing method for a camera according to an embodiment of the present invention. The embodiment of the invention is applicable to a scene for supplementing light to the lens of the camera, the method can be executed by the light supplementing device of the camera, and the device can be composed of hardware and/or software and can be integrated in the camera. In this embodiment, the camera is preferably a camera with a pan/tilt head. As shown in fig. 3, the method specifically includes the following steps:
s301, controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens to a preset coordinate system to obtain the coordinate position of the lens.
The preset coordinate system is established based on a preset light supplementing lamp deployment position. In this embodiment, the preset coordinate system may be a rectangular coordinate system.
In the embodiment of the invention, the camera is provided with a device (cradle head) for bearing the camera to rotate in the horizontal direction and the vertical direction, so that the camera can shoot from different angles. Wherein, two motors are arranged in the cloud platform, and the first motor is responsible for the rotation of camera horizontal direction, and the second motor is responsible for the rotation of camera vertical direction. In the use process, if the lens of the camera needs to be controlled to rotate a certain angle in the vertical direction, a control instruction is sent to a second motor responsible for the rotation of the camera in the vertical direction, so that the second motor drives the camera to rotate to a specified vertical angle according to the control instruction, and image shooting operation is carried out.
After the lens is controlled to rotate in the vertical direction, the position of the lens is changed from the first position to the second position (the position of the rotated lens). In order to uniformly supplement light to the rotated lens, the embodiment can map the position of the rotated lens to a preset coordinate system to obtain the coordinate position of the lens in the preset coordinate system, so as to lay a foundation for determining the rotation angle of the lens subsequently.
S302, determining the target light supplementing lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system.
Wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction.
For example, the coordinate position of each light compensating lamp group in the preset coordinate system may be obtained, then the distance between the coordinate position of each light compensating lamp group and the coordinate position of the lens may be calculated, and one or more light compensating lamp groups closest to the lens may be determined from the calculated distances as the target light compensating lamp group. In this embodiment, the distance between the coordinate position of each light compensating lamp set and the coordinate position of the lens is calculated by using a formula of the distance between two points, which will not be described in detail herein.
S303, determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp set to supplement light for the lens according to the included angle value.
The first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
Alternatively, the embodiment may make a perpendicular to a horizontal axis of a preset coordinate system based on the coordinate position of the lens, and use a point where the perpendicular intersects the horizontal axis as the reference point. And then, determining an included angle value between the first straight line and a horizontal axis in a preset coordinate system according to the coordinate position of the reference point and the coordinate position of the lens by utilizing a trigonometric function and an inverse trigonometric function. In this embodiment, the trigonometric function is preferably a tangent function, and the corresponding inverse trigonometric function is preferably an arctangent function.
For example, assume that the coordinate position of the lens is (x 1, y 1), and the coordinate position of the reference point is (x 2, 0), where x2=x1. Then from (x 1, y 1) and (x 2, 0), the adjacent and opposite sides of the angle between the first straight line and the horizontal axis in the preset coordinate system can be calculated, and the specific adjacent sides are: Δx=x1 or x2, opposite side: Δy=y1-0. At this time, the tangent function is utilized, and according to the adjacent edges and the opposite edges, the tangent value of the included angle value can be calculated: 
Or (F)>
And based on the arctangent function, an included angle value can be obtained: />
Or (F)>
And then, according to the determined included angle value, controlling the target light supplementing lamp group to supplement light for the lens.
Optionally, the control target light-compensating lamp group supplements light for the lens, and at least one light-compensating lamp in the target light-compensating lamp group can be started to supplement light for the lens.
According to the technical scheme provided by the embodiment of the invention, the lens of the camera is controlled to rotate in the vertical direction, so that the position of the rotated lens is mapped into the preset coordinate system to obtain the coordinate position of the lens, then the target light supplementing lamp group closest to the lens is determined according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system, at least two light supplementing lamps in the target light supplementing lamp group are controlled to supplement light for the lens according to the included angle value between the first straight line of the lens and the horizontal axis in the preset coordinate system, wherein the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of the at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotating angle range of the lens in the vertical direction. Therefore, the light supplementing lamp group with the light supplementing angle larger than the rotation angle range of the lens in the vertical direction is utilized to supplement light to the lens of the camera, the lens of the camera rotates to any angle position in the vertical direction, and the effect of uniform light supplementing can be achieved, so that conditions are provided for obtaining high-quality images.
Fig. 4 is a schematic flow chart of another light supplementing method for a camera according to an embodiment of the present invention, where the embodiment is further optimized based on the foregoing embodiment. As shown in fig. 4, the method specifically includes:
s401, controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens to a preset coordinate system to obtain the coordinate position of the lens.
S402, determining the target light supplementing lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system.
Wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction.
S403, determining an included angle value between the first straight line and the horizontal axis in the preset coordinate system.
S404, dividing the light filling angle of the target light filling lamp group into a plurality of sub light filling angles according to a preset equal or unequal dividing mode.
In the embodiment of the invention, the preset equal division mode can divide the light supplementing angle of the target light supplementing lamp group into a plurality of sub light supplementing angles according to the actual requirement in an equal angle mode. For example, the sub-fill angles are divided every 15 °.
The preset unequal division mode can divide the light supplementing angle of the target light supplementing lamp group into a plurality of sub light supplementing angles according to actual needs in an unequal angle mode. For example, the first sub-fill angle is divided by 10 °, the second sub-fill angle is divided by 15 °, the third sub-fill angle is divided by 25 °, and the like.
The light filling angles of the target light filling lamp group are divided according to a preset equal or unequal dividing mode, so that a plurality of sub light filling angles are obtained, and a foundation is laid for the light filling mode which is determined to be a lens later. It should be noted that, in this embodiment, after the light compensating angles of the target light compensating lamp group are divided to obtain a plurality of sub light compensating angles, a mapping relationship between the target light compensating lamp group and the plurality of sub light compensating angles may be stored, so that the light compensating angle of the target light compensating lamp group is prevented from being divided again when the lens is used for light compensation in the following process, and thus the light compensating speed is improved.
For example, as shown in fig. 4 (a), it is assumed that the target light compensating lamp group includes two light compensating lamps, namely, the light compensating lamp 1 and the light compensating lamp 2 (not shown in fig. 4 (a)), and a preset coordinate system is established with the coordinate position of the target light compensating lamp group as the coordinate origin O. Wherein OB is a horizontal axis OF a preset coordinate system, OF is a vertical axis OF the preset coordinate system, and OD is an angular bisector OF the +.BOF. The respective light filling angles of the two light filling lamps in the target light filling lamp group can be represented in a preset coordinate system. Specifically, the light-supplementing angle of the light-supplementing lamp 1 is: angle AOE; the light filling angle of the light filling lamp 2 is: and (3) angle COG. Wherein OH is the angular bisector of the angle AOE and OI is the angular bisector of the angle COG. Further, according to the light filling angle +.aoe of the light filling lamp 1 and the light filling angle +.cog of the light filling lamp 2, the light filling angle of the target light filling lamp group can be obtained as follows: angle AOG. Wherein OD is also the angular bisector of the +.AOG.
If the light compensating angle of the target light compensating lamp group is divided into a plurality of sub light compensating angles according to the preset equal dividing mode in the present example, then when the dividing angle of the equal dividing mode is: 15, the camera can divide the light filling angle of target light filling banks by a sub light filling angle every 15 to obtain 8 sub light filling angles, respectively: angle 1, angle 2, angle 3, angle 4, angle 5, angle 6, angle 7, and angle 8.
In this embodiment, the execution sequence of S403 and S404 may be that S403 is executed first and S404 is executed second; or, S404 is executed first, and S403 is executed next; alternatively, S403 and S404 are performed simultaneously. The embodiment of the present invention is not particularly limited thereto.
And S405, matching the included angle value with the plurality of sub-light supplementing angles.
And S406, if the included angle value is matched with any sub-light-supplementing angle, light supplementing is carried out on the lens according to the light supplementing mode related to the sub-light-supplementing angle.
In the embodiment of the invention, the light supplementing mode is to turn on at least one light supplementing lamp in the target light supplementing lamp group to supplement light for the lens. For example, if the target light compensating lamp set includes the light compensating lamp 1 and the light compensating lamp 2, the light compensating mode is to turn on the light compensating lamp 1 and/or the light compensating lamp 2 to perform light compensating for the lens.
It will be appreciated that turning on the light compensating lamp 1 and/or the light compensating lamp 2 may refer to turning on the light compensating lamp 1, or may refer to turning on the light compensating lamp 2, or may refer to turning on the light compensating lamp 1 and the light compensating lamp 2, which are not particularly limited herein.
Optionally, the determined included angle value is respectively matched with the divided sub-light-compensating angles, so as to determine whether the included angle value is in any sub-light-compensating angle range. If the included angle value is in any sub-light supplementing angle range, the included angle value is determined to be matched with the sub-light supplementing included angle, and light supplementing is carried out on the lens according to the light supplementing mode related to the sub-light supplementing included angle.
Continuing with the example of fig. 4 (a), assuming that the included angle value matches the angle 2 in the sub-light-compensating angle, it is determined that the lens rotates in the vertical direction to the light-compensating range of the light-compensating lamp 1 in the target light-compensating lamp group, and the light-compensating lamp 1 is turned on to compensate light for the lens.
For another example, if the included angle value is matched with the angle 4 in the sub-light-compensating angles, it is determined that the lens rotates in the vertical direction to the light compensating ranges of the light compensating lamps 1 and 2 in the target light compensating lamp group, and then the light compensating lamps 1 and 2 are turned on to perform light compensating for the lens.
According to the technical scheme provided by the embodiment of the invention, the target light supplementing lamp group closest to the lens is determined according to the coordinate position of the lens in the preset coordinate system and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system, the included angle value between the first straight line and the horizontal axis in the preset coordinate system is determined, so that the included angle value is matched with the divided sub light supplementing angles, and the light supplementing is carried out for the lens according to the light supplementing mode associated with the matched sub light supplementing angles. Therefore, the lens is supplemented with light in different light supplementing modes according to the rotation angle of the lens in the vertical direction, and conditions are provided for uniform light supplementing of the lens.
Fig. 5 is a schematic flow chart of a light supplementing method for a camera according to an embodiment of the present invention, where the embodiment is further optimized based on the foregoing embodiment. As shown in fig. 5, the method specifically includes:
s501, controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens to a preset coordinate system to obtain the coordinate position of the lens.
S502, determining the target light supplementing lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system.
Wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction.
S503, determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value.
The first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
S504, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group according to the included angle value.
In general, when the angle value is different, the required light compensation brightness of the lens may be different. Therefore, according to the embodiment of the invention, after the target light supplementing lamp group is controlled to supplement light for the lens according to the included angle value, the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group can be controlled according to the included angle value. Optionally, before controlling the light-supplementing brightness of at least one light-supplementing lamp in the target light-supplementing lamp group according to the included angle value, determining whether the rotation direction of the lens in the vertical direction is from 90 degrees to 0 degrees or from 0 degrees to 90 degrees, and then determining that the at least one light-supplementing lamp in the target light-supplementing lamp group is the light-supplementing brightness of the lens according to the rotation direction of the lens.
The rotation direction of the lens in the vertical direction is determined, and the rotation direction of the lens in the vertical direction can be determined according to the included angle value at the current moment and the included angle value at the last moment; wherein the rotation direction includes: the first angular direction is turned to the second angular direction, or the second angular direction is turned to the first angular direction. In this embodiment, the first angular direction is 0 ° and the second angular direction is 90 °; alternatively, the first angular direction is 90 ° and the second angular direction is 0 °.
For example, if the angle value of the previous moment is 15 °, and the angle value of the current moment is 30 °, the rotation direction of the lens in the vertical direction is determined as follows: rotated from 0 deg. to 90 deg.. For another example, if the angle value at the previous moment is 75 °, and the angle value at the current moment is 60 °, the rotation direction of the lens in the vertical direction is determined as follows: rotated from 90 deg. to 0 deg..
After determining the rotation mode of the lens in the vertical direction, the embodiment may control the light-compensating lamp brightness of at least one light-compensating lamp in the target light-compensating lamp group according to the included angle value based on the rotation mode. Optionally, controlling the brightness of the light compensating lamp of the at least one light compensating lamp in the target light compensating lamp group according to the included angle value may include: if the rotation direction is changed from the first angle direction to the second angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group to be reduced, and increasing the light supplementing brightness of the rest light supplementing lamps; and if the rotation direction is changed from the second angle direction to the first angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp set to be increased, and reducing the light supplementing brightness of the rest light supplementing lamps.
Next, this embodiment will be described by way of a specific example with reference to fig. 4 (a).
Assuming that the target light compensating lamp group includes two light compensating lamps, namely a light compensating lamp 1 and a light compensating lamp 2, the rotation direction of the camera is rotated from 0 degrees to 90 degrees, and then the rotation angle of the lens is determined to be gradually increased. At this time, if the angle value between the first straight line where the camera is located and the horizontal axis of the preset coordinate system is: and alpha, respectively matching the alpha with the divided 8 sub-light supplementing angles. If α < BOH, turning off the light-compensating lamp 2, turning on the light-compensating lamp 1, and controlling the brightness of the light-compensating lamp 1 to gradually decrease along with the increase of α until α= BOH, at this time, the lens angle α reaches the angular bisector of the light-compensating lamp 1, and the light-compensating lamp 1 reaches the most uniform light-compensating state; if alpha continues to be larger and BOH < alpha < BOD, controlling the brightness of the light supplementing lamp 1 to be gradually reduced, starting the light supplementing lamp 2 and controlling the brightness of the light supplementing lamp 2 to be gradually increased, wherein when alpha= BOD, the brightness of the light supplementing lamp 1 and the brightness of the light supplementing lamp 2 are equivalent, and the overall light supplementing most uniform state is achieved; if BOD < alpha < BOI, controlling the brightness of the light supplementing lamp 1 to be gradually reduced and the brightness of the light supplementing lamp 2 to be gradually increased, wherein when alpha= BOI, the lens angle alpha reaches the angular bisector of the light supplementing lamp 2, and the light supplementing lamp 2 reaches the most uniform light supplementing state; when alpha continues to be larger and alpha > is less than BOI, the light supplementing lamp 1 is controlled to be turned off, and the brightness of the light supplementing lamp 2 is controlled to be gradually increased.
For another example, if the target light compensating lamp set includes two light compensating lamps, namely, the light compensating lamp 1 and the light compensating lamp 2, and the rotation direction of the camera is rotated from 90 ° to 0 ° direction, it is determined that the rotation angle of the lens is gradually reduced. At this time, if the angle value between the first straight line where the camera is located and the horizontal axis of the preset coordinate system is: and alpha, respectively matching the alpha with the divided 8 sub-light supplementing angles. If the angle BOI is less than alpha, the light supplementing lamp 1 is controlled to be turned off, the brightness of the light supplementing lamp 2 is controlled to be gradually reduced, and as a becomes smaller, when the angle BOI is less than alpha, the lens angle alpha reaches the angular bisector of the light supplementing lamp 2, and the light supplementing lamp 2 reaches the most uniform light supplementing state; if BOD < alpha < BOI, controlling the brightness of the light supplementing lamp 1 to gradually increase and the brightness of the light supplementing lamp 2 to gradually decrease, and when alpha= BOD, the brightness of the light supplementing lamp 1 and the brightness of the light supplementing lamp 2 are equivalent to each other as a continuously decreases, so that the whole light supplementing is in the most uniform state; if BOH < alpha < BOD, controlling the brightness of the light supplementing lamp 1 to gradually increase, starting the light supplementing lamp 2 and controlling the brightness of the light supplementing lamp 2 to gradually decrease, and when alpha= BOH, the lens angle alpha reaches the angular bisector of the light supplementing lamp 1 at the moment, and the light supplementing lamp 1 reaches the most uniform light supplementing state as a continuously decreases; if alpha < BOH, the light supplementing lamp 2 is turned off, the light supplementing lamp 1 is turned on, and the brightness of the light supplementing lamp 1 is controlled to be gradually increased along with the decrease of alpha.
According to the technical scheme provided by the embodiment of the invention, the light supplementing brightness of at least two light supplementing lamps in the target light supplementing lamp group is controlled according to the movement characteristics of the lens in the vertical direction, so that the uniformity of light supplementing to the lens can be ensured when the lens is at any vertical angle, and conditions are provided for obtaining high-quality images.
Fig. 6 is a schematic structural diagram of a light compensating device of a camera according to an embodiment of the present invention. As shown in fig. 6, a light supplementing device 600 of a camera according to an embodiment of the present invention includes: a control module 610, a determination module 620, and a light replenishment module 630.
The control module 610 is configured to control the lens to rotate in a vertical direction, and map a position of the rotated lens to a preset coordinate system to obtain a coordinate position of the lens;
a determining module 620, configured to determine, according to the coordinate positions of the lens and the coordinate positions of the plurality of light compensating lamp groups in the preset coordinate system, a target light compensating lamp group closest to the lens; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
The light supplementing module 630 is configured to determine an angle value between a first straight line and a horizontal axis in the preset coordinate system, and control the target light supplementing lamp set to supplement light for the lens according to the angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
As an optional implementation manner of the embodiment of the present invention, the light filling device 600 of the camera further includes: dividing the module;
the dividing module is used for dividing the light supplementing angle of the target light supplementing lamp set into a plurality of sub light supplementing angles according to a preset equal or unequal dividing mode.
As an alternative implementation of an embodiment of the present invention, the light supplementing module 630 includes: a matching subunit and a complementary subunit;
the matching subunit is used for matching the included angle value with the plurality of sub-light supplementing angles;
and the light supplementing sub-unit is used for supplementing light to the lens according to the light supplementing mode related to the sub-light supplementing angle if the included angle value is matched with any sub-light supplementing angle.
As an optional implementation manner of the embodiment of the present invention, the light supplementing manner is to turn on at least one light supplementing lamp in the target light supplementing lamp set, and supplement light for the lens.
As an optional implementation manner of the embodiment of the present invention, the light filling device 600 of the camera further includes: a light compensation brightness control module;
and the light supplementing brightness control module is used for controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group according to the included angle value.
As an optional implementation manner of the embodiment of the present invention, the light filling device 600 of the camera further includes: a rotation direction determining module;
the rotation direction determining module is used for determining the rotation direction of the lens in the vertical direction according to the included angle value at the current moment and the included angle value at the last moment;
wherein the rotation direction includes: the first angular direction is turned to the second angular direction, or the second angular direction is turned to the first angular direction.
As an optional implementation manner of the embodiment of the present invention, the light-compensating brightness control module is specifically configured to:
if the rotation direction is changed from the first angle direction to the second angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group to be reduced, and increasing the light supplementing brightness of the rest light supplementing lamps;
and if the rotation direction is changed from the second angle direction to the first angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp set to be increased, and reducing the light supplementing brightness of the rest light supplementing lamps.
It should be noted that the foregoing explanation of the embodiment of the light supplementing method of the camera is also applicable to the light supplementing device of the camera of this embodiment, and the implementation principle is similar, and will not be repeated here.
According to the technical scheme provided by the embodiment of the invention, the lens of the camera is controlled to rotate in the vertical direction, so that the position of the rotated lens is mapped into the preset coordinate system to obtain the coordinate position of the lens, then the target light supplementing lamp group closest to the lens is determined according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system, at least two light supplementing lamps in the target light supplementing lamp group are controlled to supplement light for the lens according to the included angle value between the first straight line of the lens and the horizontal axis in the preset coordinate system, wherein the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of the at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotating angle range of the lens in the vertical direction. Therefore, the light supplementing lamp group with the light supplementing angle larger than the rotation angle range of the lens in the vertical direction supplements light for the lens of the camera, so that the lens of the camera rotates to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for obtaining high-quality images.
Fig. 7 is a schematic structural diagram of a camera according to an embodiment of the present invention, as shown in fig. 7, the camera includes a plurality of light compensating groups 710, a memory 720, a processor 730, an input device 740 and an output device 750, where the plurality of light compensating groups 710 are used for compensating light for a lens of the camera; one processor 730 is illustrated in fig. 7; the multiple light compensating groups 710 in the camera, the memory 720, the processor 730, the input device 740, and the output device 750 may be connected by a bus or other means, for example in fig. 7.
The memory 720 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and modules, such as program instructions/modules corresponding to the light supplementing method of the camera in the embodiment of the present invention (for example, the control module 610, the determining module 620, and the light supplementing module 630 in the light supplementing device 600 of the camera). The processor 730 executes various functional applications of the computer device and data processing by running software programs, instructions and modules stored in the memory 720, i.e. implements the above-mentioned camera light supplementing method, which includes:
controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens into a preset coordinate system to obtain the coordinate position of the lens;
Determining a target light supplementing lamp group nearest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
Of course, the camera provided by the embodiment of the present invention is not limited to the method operation described above, and may also perform the related operation in the light supplementing method of the camera provided by any other embodiment of the present invention.
The input device 740 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the camera. The output device 750 may be used to output image information or the like.
According to the camera provided by the embodiment of the invention, the lens of the camera is controlled to rotate in the vertical direction, so that the position of the rotated lens is mapped into the preset coordinate system to obtain the coordinate position of the lens, then the target light supplementing lamp group closest to the lens is determined according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system, and at least two light supplementing lamps in the target light supplementing lamp group are controlled to supplement light for the lens according to the included angle value between the first straight line of the lens and the horizontal axis in the preset coordinate system, wherein the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of the at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction. Therefore, the light supplementing lamp group with the light supplementing angle larger than the rotation angle range of the lens in the vertical direction supplements light for the lens of the camera, so that the lens of the camera rotates to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for obtaining high-quality images.
To achieve the above object, the present invention also proposes a computer-readable storage medium.
The embodiment of the invention provides a computer readable storage medium, on which a computer program is stored, the program when executed by a processor implementing a light supplementing method for a camera according to the embodiment of the invention, the method comprising:
controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens into a preset coordinate system to obtain the coordinate position of the lens;
determining a target light supplementing lamp group nearest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. A method of supplementing light to a camera, comprising:
controlling the lens to rotate in the vertical direction, and mapping the position of the rotated lens into a preset coordinate system to obtain the coordinate position of the lens;
determining a target light supplementing lamp group nearest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
dividing the light supplementing angle of the target light supplementing lamp group into a plurality of sub light supplementing angles according to a preset equal or unequal dividing mode;
determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system, and controlling the target light supplementing lamp set to supplement light for the lens according to the included angle value, wherein the method comprises the following steps of:
matching the included angle value with the plurality of sub-light supplementing angles;
if the included angle value is matched with any sub-light supplementing angle, light supplementing is carried out on the lens according to a light supplementing mode related to the sub-light supplementing angle; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system.
2. The method of claim 1, wherein the light filling is performed by turning on at least one light filling lamp in the target light filling lamp group to fill the lens with light.
3. The method of claim 1, wherein controlling the target light compensating lamp group to compensate for the lens according to the included angle value further comprises:
and controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group according to the included angle value.
4. The method of claim 3, wherein before controlling the light-compensating intensity of at least one light-compensating lamp in the target light-compensating lamp group according to the included angle value, further comprises:
determining the rotation direction of the lens in the vertical direction according to the included angle value at the current moment and the included angle value at the last moment;
wherein the rotation direction includes: the first angular direction is turned to the second angular direction, or the second angular direction is turned to the first angular direction.
5. The method of claim 4, wherein controlling the light-compensating brightness of at least one light-compensating in the target light-compensating group according to the angle value comprises:
if the rotation direction is changed from the first angle direction to the second angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp group to be reduced, and increasing the light supplementing brightness of the rest light supplementing lamps;
And if the rotation direction is changed from the second angle direction to the first angle direction, controlling the light supplementing brightness of at least one light supplementing lamp in the target light supplementing lamp set to be increased, and reducing the light supplementing brightness of the rest light supplementing lamps.
6. A light supplementing device for a camera, comprising:
the control module is used for controlling the lens to rotate in the vertical direction and mapping the position of the rotated lens into a preset coordinate system so as to obtain the coordinate position of the lens;
the determining module is used for determining the target light supplementing lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of light supplementing lamp groups in the preset coordinate system; wherein each light supplementing lamp group comprises at least two light supplementing lamps; the light supplementing angle of each light supplementing lamp group is determined according to the union of the light supplementing angles of at least two light supplementing lamps, and the light supplementing angle of each light supplementing lamp group is larger than the rotation angle range of the lens in the vertical direction;
the dividing module is used for dividing the light supplementing angle of the target light supplementing lamp group into a plurality of sub light supplementing angles according to a preset equal or unequal dividing mode;
the light supplementing module is used for determining an included angle value between a first straight line and a horizontal axis in the preset coordinate system and controlling the target light supplementing lamp group to supplement light for the lens according to the included angle value; the first straight line is a straight line connecting the coordinate position of the lens and the origin of coordinates in the preset coordinate system;
A light supplementing module, comprising: a matching subunit and a complementary subunit;
the matching subunit is used for matching the included angle value with the plurality of sub-light supplementing angles;
and the light supplementing sub-unit is used for supplementing light to the lens according to the light supplementing mode related to the sub-light supplementing angle if the included angle value is matched with any sub-light supplementing angle.
7. A video camera, comprising:
the light supplementing lamp groups are used for supplementing light to the lens of the camera;
one or more processors;
a memory for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method of light filling of a camera as claimed in any one of claims 1-5.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a method for light filling of a camera according to any one of claims 1-5.
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