CN113824891A - Camera and light supplementing method, device and medium thereof - Google Patents
Camera and light supplementing method, device and medium thereof Download PDFInfo
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- CN113824891A CN113824891A CN202010565624.3A CN202010565624A CN113824891A CN 113824891 A CN113824891 A CN 113824891A CN 202010565624 A CN202010565624 A CN 202010565624A CN 113824891 A CN113824891 A CN 113824891A
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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, a light supplementing device and a light supplementing 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 to a preset coordinate system to obtain the coordinate position of the lens; determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in a preset coordinate system; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set 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 a 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. The invention ensures the uniformity of light supplement for the camera.
Description
Technical Field
The embodiment of the invention relates to the technical field of camera light supplement, in particular to a camera and a light supplement method, a light supplement device and a light supplement medium thereof.
Background
Under the condition of insufficient light intensity, images shot by the camera are not clear, more noise exists, and the image quality is poor. Therefore, supplementary lighting is required for the camera to improve image quality.
At present, when the camera is supplemented with light, the light supplementing lamp is placed around the sphere where the lens of the camera is located, as shown in fig. 1, so that when the lens rotates, the light supplementing lamp can adjust the brightness along with the rotation angle of the lens, and the light supplementing of the camera is relatively uniform. However, when the lens of the camera is rotated in the vertical direction and is rotated to the boundary position of the vertical rotation angle, the light supplement method is likely to cause uneven light supplement to the camera.
Disclosure of Invention
The embodiment of the invention provides a camera and a light supplementing method, a light supplementing device and a light supplementing medium thereof, and ensures the uniformity of light supplementing for the camera.
In a first aspect, an embodiment of the present invention provides a light supplement method for a camera, where the method includes:
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;
determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system respectively; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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 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 supplement device for a camera, where the device includes:
the control module is used for controlling the lens to rotate in the vertical direction and mapping the position of the rotated lens to a preset coordinate system so as to obtain the coordinate position of the lens;
the determining module is used for determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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;
the light supplementing module is used for determining an included angle value between the 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 plurality of 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 light supplement method for a camera according to any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the light supplement method for a camera according to any embodiment 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 of a camera to rotate in the vertical direction so as to map the position of the rotated camera lens to a preset coordinate system, obtaining the coordinate position of the camera lens, determining a target light supplement 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 supplement lamp groups in the preset coordinate system, controlling at least two light supplement lamps in the target light supplement 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 supplement angle of each light supplement lamp group is determined according to the light supplement angle union of the at least two light supplement lamps, and the light supplement angle of each light supplement 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 is used for supplementing light to the lens of the camera, the lens of the camera is rotated to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for acquiring high-quality images.
Drawings
Fig. 1 is a schematic structural diagram of a fill-in light placed around a lens of a camera in the related art;
fig. 2(a) is a schematic structural diagram of a fill-in light group deployed around a lens of a camera according to an embodiment of the present invention;
fig. 2(b) -2 (c) are schematic structural diagrams of deployment manners of two light supplement lamps in the light supplement lamp set according to the embodiment of the present invention;
fig. 3 is a schematic flow chart of a light supplement method for a camera according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of another light supplement method for 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 supplement angle of a target light supplement lamp set into a plurality of sub light supplement angles according to an embodiment of the present invention;
fig. 5 is a schematic flowchart of a light supplement method for a camera according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a light supplement device of a camera according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a camera according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
A camera and a light supplement method, device, and medium thereof according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings. For clarity, in the embodiment of the present invention, a supplementary lighting set is placed around a lens of a camera in the embodiment of the present invention. For example, as shown in fig. 2(a), one light supplement lamp in each light supplement lamp deployment position in the preset light supplement lamp deployment position in the related art is optimized to a light supplement lamp group including at least two light supplement lamps, so that the light supplement angle of each light supplement lamp group is larger than the rotation angle range of the camera in the vertical direction, and thus when the camera rotates to any angle position, uniform light supplement can be performed on the camera through the light supplement lamp group. The light supplement angles of at least two light supplement lamps in the light supplement lamp group are the same in size, the arrangement positions are not overlapped, and the light supplement angle orientation of each light supplement lamp is not overlapped. In this embodiment, a greater number of preset fill light deployment positions may also be set around the lens, where no specific limitation is imposed on the number, for example, 5 preset fill light deployment positions are set.
With reference to fig. 2(b) and fig. 2(c), a manner of disposing at least two fill-in lamps in each fill-in lamp group in this embodiment is described. Suppose that each light supplement lamp group includes two light supplement lamps, which are light supplement lamp 1 and light supplement lamp 2, and then as shown in fig. 2(b), the light supplement lamps 1 and 2 can be deployed on two identical light supplement lamp panels respectively, wherein the light supplement angles of the light supplement lamps on the two light supplement lamp panels are the same, and the deployment positions are not coincident. That is, the directions of the light supplement angles of the light supplement lamp 1 and the light supplement lamp 2 are not coincident. For another example, as shown in fig. 2(c), the fill-in light lamp 1 and the fill-in light lamp 2 are disposed on the same light-filling plate, where the fill-in light angle of the fill-in light lamp 1 is the same as that of the fill-in light lamp 2, but the fill-in light angle is not aligned. In this embodiment, the light supplement angles of the light supplement lamps 1 and 2 can be determined according to the attributes of the light supplement lamps. Namely, the light supplement lamp with different light supplement angles can be selected according to actual needs, and light supplement operation is carried out on the camera.
Referring to fig. 3, a light supplement method for a camera according to an embodiment of the present invention will be described. Fig. 3 is a schematic flow chart of a light supplement method for a camera according to an embodiment of the present invention. The embodiment of the invention is applicable to scenes for supplementing light to the lens of the camera, and the method can be executed by the light supplementing device of the camera provided by the embodiment of the invention, 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 having 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 a coordinate system established based on a preset light supplement lamp deployment position. In this embodiment, the predetermined coordinate system may be a rectangular coordinate system.
In the embodiment of the invention, the camera is provided with a device (a tripod head) for bearing the camera to rotate in the horizontal direction and the vertical direction, so that the camera can shoot from different angles. The cloud platform is internally provided with two motors, the first motor is responsible for the rotation of the camera in the horizontal direction, and the second motor is responsible for the rotation of the camera in the vertical direction. In the using process, if the lens of the camera needs to be controlled to rotate for a certain angle in the vertical direction, a control instruction can be sent to the second motor which is responsible for the vertical direction rotation of the camera, so that the second motor drives the camera to rotate to the specified vertical angle according to the control instruction, and the 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 where the lens is rotated). In order to uniformly supplement light for the rotated lens, the embodiment can map the position of the rotated lens to the preset coordinate system to obtain the coordinate position of the lens in the preset coordinate system, so as to lay a foundation for subsequently determining the rotation angle of the lens.
And S302, determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system.
Each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set 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.
For example, the coordinate position of each light supplement lamp group in the preset coordinate system may be obtained, then the distance between the coordinate position of each light supplement lamp group and the coordinate position of the lens is calculated, and from the calculated distances, one or more light supplement lamp groups closest to the lens are determined as the target light supplement lamp group. In this embodiment, the distance between the coordinate position of each light supplement lamp set and the coordinate position of the lens may be calculated by using a formula of the distance between two points, which is not described herein in detail.
And S303, determining an included angle value between the 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.
Optionally, in this embodiment, a vertical line may be drawn to a horizontal axis of the preset coordinate system based on the coordinate position of the lens, and a point where the vertical line intersects with the horizontal axis may be used 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 the trigonometric function and the inverse trigonometric function. In this embodiment, the trigonometric function is preferably a tangent function, and the corresponding inverse trigonometric function is preferably an inverse tangent function.
For example, assuming that the coordinate position of the lens is (x1, y1),the coordinate position of the reference point is (x2,0), where x2 is x 1. Then, according to (x1, y1) and (x2,0), the adjacent side and the opposite side of the angle between the first straight line and the horizontal axis in the preset coordinate system can be calculated, and the specific adjacent side is: Δ x ═ x1 or x2, on opposite sides: y 1-0. At this time, by using the tangent function, the tangent value of the included angle value can be calculated according to the adjacent side and the opposite side:
alternatively, the first and second electrodes may be,
and based on the arctan function, the included angle value can be obtained:
alternatively, the first and second electrodes may be,
and then, according to the determined included angle value, controlling the target light supplementing lamp group to supplement light for the lens.
Optionally, the target light supplement lamp set is controlled to supplement light for the lens, and at least one light supplement lamp in the target light supplement lamp set can be turned on to supplement light for the lens.
According to the technical scheme provided by the embodiment of the invention, the position of the rotated lens is mapped to a preset coordinate system by controlling the lens of the camera to rotate in the vertical direction, so that the coordinate position of the lens is obtained, 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 a 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 a first straight line where the 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 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 lens of the camera is supplemented with light by using the light supplementing lamp group with the light supplementing angle larger than the rotating angle range of the lens in the vertical direction, the lens of the camera is rotated to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for acquiring high-quality images.
Fig. 4 is a schematic flow chart of another light supplement method for a camera according to an embodiment of the present invention, which 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 a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the supplementary lighting lamp groups in the preset coordinate system.
Each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set 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.
And S403, determining an included angle value between the first straight line and a horizontal axis in the preset coordinate system.
And S404, dividing the light supplement angle of the target light supplement lamp group into a plurality of sub light supplement angles according to a preset equal or unequal division mode.
In the embodiment of the invention, the preset equal division mode can divide the light supplement angle of the target light supplement lamp group into a plurality of sub light supplement angles according to actual needs in an equal angle mode. For example, one sub-fill angle is divided every 15 °.
The preset non-equal division mode can divide the light supplement angle of the target light supplement lamp set into a plurality of sub light supplement angles according to actual needs in a non-equal angle mode. For example, the light supplement angle of the target light supplement lamp group is divided into a plurality of sub light supplement angles with different light supplement angles in an incremental manner, such as dividing a first sub light supplement angle by 10 degrees, dividing a second sub light supplement angle by 15 degrees, and dividing a third sub light supplement angle by 25 degrees.
Illustratively, the light supplement angles of the target light supplement lamp group are divided according to a preset equal or unequal dividing mode to obtain a plurality of sub light supplement angles, so that a foundation is laid for subsequently determining the light supplement mode of the lens. It should be noted that, in this embodiment, after the light supplement angles of the target light supplement lamp group are divided to obtain a plurality of sub light supplement angles, the mapping relationship between the target light supplement lamp group and the plurality of sub light supplement angles may also be stored, so as to avoid dividing the light supplement angle of the target light supplement lamp group again when the lens is subsequently subjected to light supplement, thereby increasing the light supplement speed.
For example, as shown in fig. 4(a), it is assumed that the target fill-in light lamp group includes two fill-in lights, which are a fill-in light lamp 1 and a fill-in light lamp 2 (not shown in fig. 4 (a)), and a preset coordinate system is established with the coordinate position of the target fill-in light 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 ≈ BOF. Then, the fill-in angles corresponding to the two fill-in lamps in the target fill-in lamp set can be represented in a preset coordinate system. Specifically, the light supplement angle of the light supplement lamp 1 is as follows: angle AOE; the light supplement angle of the light supplement lamp 2 is as follows: angle COG. Wherein OH is an angular bisector of < AOE, and OI is an angular bisector of < COG. Further, according to the light supplement angle ≥ AOE of the light supplement lamp 1 and the light supplement angle ≤ COG of the light supplement lamp 2, the light supplement angle of the target light supplement lamp group can be obtained as follows: angle AOG. Wherein OD is also the angular bisector of ≈ AOG.
If the light supplement angle of the target light supplement lamp group is divided into a plurality of sub light supplement angles according to a preset equal division manner in this example, when the division angle of the equal division manner is: 15, the camera can be with the light filling angle of target light filling banks, a sub light filling angle of 15 divisions at every interval to obtain 8 sub light filling angles, be respectively: angle 1, angle 2, angle 3, angle 4, angle 5, angle 6, angle 7, and angle 8.
It should be noted that in this embodiment, the execution sequence of S403 and S404 may be that S403 is executed first, and then S404 is executed; or, executing S404 first and then executing S403; still alternatively, S403 and S404 are performed simultaneously. The embodiment of the present invention is not particularly limited to this.
S405, matching the included angle value with the plurality of sub-light-compensating angles.
And S406, if the included angle value is matched with any sub light supplement angle, performing light supplement on the lens according to a light supplement mode associated with the sub light supplement angle.
In the embodiment of the invention, the light supplement mode is to turn on at least one light supplement lamp in the target light supplement lamp set to supplement light for the lens. For example, if the target light supplement lamp set includes the light supplement lamp 1 and the light supplement lamp 2, the light supplement mode is to turn on the light supplement lamp 1 and/or the light supplement lamp 2 to supplement light for the lens.
It can be understood that, turning on the light supplement lamp 1 and/or the light supplement lamp 2 may refer to turning on the light supplement lamp 1, or may also refer to turning on the light supplement lamp 2, or may refer to turning on the light supplement lamp 1 and the light supplement lamp 2, where no specific limitation is imposed on them.
Optionally, the determined included angle value is respectively matched with the plurality of divided sub light supplement angles, so as to determine whether the included angle value is within any sub light supplement angle range. And if the included angle value is within the angle range of any sub light supplement, determining that the included angle value is matched with the sub light supplement included angle, and supplementing light for the lens according to a light supplement mode associated with the sub light supplement included angle.
Continuing with the example of fig. 4(a), assuming that the included angle value is matched with the angle 2 of the sub light supplement angles, it is determined that the lens rotates in the vertical direction to the light supplement range of the light supplement lamp 1 in the target light supplement lamp set, and the light supplement lamp 1 is turned on to supplement light for the lens.
If the included angle value is matched with the angle 4 in the sub light supplement angles, it is determined that the lens rotates in the vertical direction to the light supplement ranges of the light supplement lamps 1 and 2 in the target light supplement lamp group, and the light supplement lamps 1 and 2 are turned on to supplement light for the lens.
According to the technical scheme provided by the embodiment of the invention, the target light supplement 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 light supplement 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, the included angle value is matched with the divided sub light supplement angles, and light supplement is carried out on the lens according to the light supplement mode related to the matched sub light supplement 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 supplementation of the lens.
Fig. 5 is a schematic flow chart of a light supplement method for a camera according to another embodiment of the present invention, which 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.
And S502, determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system respectively.
Each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set 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.
S503, determining an included angle value between the 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.
And S504, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp set according to the included angle value.
Generally, when the included angles are different, the fill-in luminance required by the lens may be different. Therefore, in the embodiment of the invention, after the target light supplement lamp set is controlled to supplement light to the lens according to the included angle value, the light supplement brightness of at least one light supplement lamp in the target light supplement lamp set can be controlled according to the included angle value. Optionally, before controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp set according to the included angle value, the rotation direction of the lens in the vertical direction may be determined, the rotation direction is from 90 degrees to 0 degrees or from 0 degrees to 90 degrees, and then the light supplement brightness of the at least one light supplement lamp in the target light supplement lamp set for supplementing light to the lens is determined 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 of the current moment and the included angle value of the previous moment; wherein the direction of rotation comprises: and turning from the first angle direction to the second angle direction, or turning from the second angle direction to the first angle direction. In this embodiment, the first angular direction is 0 °, the second angular direction is 90 °; alternatively, the first angular direction is 90 ° and the second angular direction is 0 °.
For example, if the included angle value at the previous time is 15 ° and the included angle value at the current time is 30 °, the rotation direction of the lens in the vertical direction is determined as follows: rotate from 0 to 90. For another example, if the included angle value at the previous time is 75 ° and the included angle value at the current time is 60 °, the rotation direction of the lens in the vertical direction is determined as follows: the rotation is from 90 degrees to 0 degrees.
After the rotation mode of the lens in the vertical direction is determined, the luminance of the fill-in light of at least one fill-in light in the target fill-in light group can be controlled according to the included angle value based on the rotation mode in the embodiment. Optionally, the controlling the luminance of at least one fill-in light lamp in the target fill-in light lamp set according to the included angle value may include: if the rotating direction is from the first angle direction to the second angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be reduced, and increasing the light supplement brightness of the rest light supplement lamps; and if the rotating direction is from the second angle direction to the first angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be increased, and reducing the light supplement brightness of the rest light supplement lamps.
The present embodiment will be described below with reference to fig. 4(a) by way of specific examples.
Assuming that the target light supplement lamp group comprises two light supplement lamps, namely a light supplement lamp 1 and a light supplement lamp 2, and the rotation direction of the camera is from 0 degree to 90 degrees, the rotation angle of the lens is determined to be gradually increased. At this time, if the included angle 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 supplement angles. If alpha < BOH, turning off the light supplement lamp 2, turning on the light supplement lamp 1, and controlling the brightness of the light supplement lamp 1 to gradually decrease along with the increase of alpha until the lens angle alpha reaches the angular bisector of the light supplement lamp 1 when the alpha is equal to BOH, wherein the light supplement lamp 1 reaches the most uniform state of light supplement; if alpha continues to be increased and < alpha < BOD, controlling the brightness of the light supplement lamp 1 to be gradually reduced, turning on the light supplement lamp 2 and controlling the brightness of the light supplement lamp 2 to be gradually increased, wherein when alpha is equal to the < BOD, the brightness of the light supplement lamp 1 is equal to that of the light supplement lamp 2, and the most uniform state of the whole light supplement is achieved; if the angle BOD is less than alpha < BOI, controlling the brightness of the light supplement lamp 1 to be gradually reduced, and gradually increasing the brightness of the light supplement lamp 2, wherein when the angle alpha is equal to the angle BOI, the lens angle alpha reaches the angular bisector of the light supplement lamp 2, and the light supplement lamp 2 reaches the most uniform state of light supplement; and when the alpha is continuously increased and the alpha & lt BOI is obtained, controlling the light supplement lamp 1 to be turned off and controlling the brightness of the light supplement lamp 2 to be gradually increased.
For another example, if the target light supplement lamp set includes two light supplement lamps, i.e., a light supplement lamp 1 and a light supplement lamp 2, and the rotation direction of the camera is rotated from 90 ° to 0 °, it is determined that the rotation angle of the lens is gradually decreased. At this time, if the included angle 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 supplement angles. If the angle BOI is less than alpha, the light supplement lamp 1 is controlled to be turned off, the brightness of the light supplement lamp 2 is controlled to be gradually reduced, and as a is reduced, when the angle alpha is less than the angle BOI, the lens angle alpha reaches the angular bisector of the light supplement lamp 2, and the light supplement lamp 2 reaches the state of the most uniform light supplement; if the < BOD < alpha < BOI, controlling the brightness of the light supplement lamp 1 to gradually increase, gradually reducing the brightness of the light supplement lamp 2, and when the < alpha > is less than the < BOI, the brightness of the light supplement lamp 1 is equal to that of the light supplement lamp 2, so that the most uniform state of the whole light supplement is achieved; if the angle BOH < alpha < BOD, controlling the brightness of the light supplement lamp 1 to gradually increase, turning on the light supplement lamp 2 and controlling the brightness of the light supplement lamp 2 to gradually decrease, and when alpha is equal to angle BOH, when alpha is continuously decreased, the lens angle alpha reaches the bisector of the light supplement lamp 1, and the light supplement lamp 1 reaches the most uniform state of light supplement; if alpha < BOH, the light supplement lamp 2 is turned off, the light supplement lamp 1 is turned on, and the brightness of the light supplement lamp 1 is controlled to gradually increase along with the reduction of alpha.
According to the technical scheme provided by the embodiment of the invention, at least two light supplement lamps in the target light supplement lamp group and the light supplement brightness of the light supplement lamps are controlled according to the movement characteristics of the lens in the vertical direction, so that the uniformity of light supplement to the lens can be ensured when the lens is positioned at any vertical angle, and conditions are provided for acquiring high-quality images.
Fig. 6 is a schematic structural diagram of a light supplement device of a camera according to an embodiment of the present invention. As shown in fig. 6, a light supplement device 600 of a camera according to an embodiment of the present invention includes: a control module 610, a determination module 620 and a fill light module 630.
The control module 610 is configured to control the lens to rotate in the vertical direction, and map the position of the rotated lens to a preset coordinate system to obtain a coordinate position of the lens;
the determining module 620 is configured to determine a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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;
a light supplement module 630, configured to determine an included angle value between the first straight line and a horizontal axis in the preset coordinate system, and control the target light supplement 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.
As an optional implementation manner of the embodiment of the present invention, the light supplement device 600 of the camera further includes: a dividing module;
the dividing module is used for dividing the light supplement angle of the target light supplement lamp group into a plurality of sub light supplement angles according to a preset equal or unequal dividing mode.
As an optional implementation manner of the embodiment of the present invention, the light supplement module 630 includes: the matching subunit and the supplementary lighting subunit;
the matching subunit is used for matching the included angle value with the plurality of sub-light supplementing angles;
and the light supplementing subunit is configured to, if the included angle value is matched with any one of the sub light supplementing angles, supplement light for the lens according to a light supplementing mode associated with the sub light supplementing angle.
As an optional implementation manner of the embodiment of the present invention, the light supplement manner is to turn on at least one light supplement lamp in a target light supplement lamp set to supplement light for the lens.
As an optional implementation manner of the embodiment of the present invention, the light supplement device 600 of the camera further includes: a supplementary lighting brightness control module;
and the light supplement brightness control module is used for controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp set according to the included angle value.
As an optional implementation manner of the embodiment of the present invention, the light supplement device 600 of the camera further includes: a rotation direction determination 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 previous moment;
wherein the direction of rotation comprises: and turning from the first angle direction to the second angle direction, or turning from the second angle direction to the first angle direction.
As an optional implementation manner of the embodiment of the present invention, the light supplement luminance control module is specifically configured to:
if the rotating direction is from the first angle direction to the second angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be reduced, and increasing the light supplement brightness of the rest light supplement lamps;
and if the rotating direction is from the second angle direction to the first angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be increased, and reducing the light supplement brightness of the rest light supplement lamps.
It should be noted that the foregoing explanation of the embodiment of the light supplement method for a camera is also applicable to the light supplement device for a camera in this embodiment, and the implementation principle is similar, and therefore, no further description is given here.
According to the technical scheme provided by the embodiment of the invention, the position of the rotated lens is mapped to a preset coordinate system by controlling the lens of the camera to rotate in the vertical direction, so that the coordinate position of the lens is obtained, 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 a 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 a first straight line where the 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 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 rotating angle range of the lens in the vertical direction is used for supplementing light to the lens of the camera, the lens of the camera is rotated to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for acquiring 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 fill-in light groups 710, a memory 720, a processor 730, an input device 740, and an output device 750, where the plurality of fill-in light groups 710 are used for filling in light for a lens of the camera; in FIG. 7, a processor 730 is illustrated; the plurality of fill light groups 710, the memory 720, the processor 730, the input device 740, and the output device 750 in the camera may be connected by a bus or other means, as exemplified by the bus connection in fig. 7.
The memory 720 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the light supplement method for a camera in the embodiment of the present invention (for example, the control module 610, the determination module 620, and the light supplement module 630 in the light supplement apparatus 600 for a camera). The processor 730 executes various functional applications and data processing of the computer device by executing the software programs, instructions and modules stored in the memory 720, so as to implement the above-mentioned light supplementing method for the camera, the method comprising:
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;
determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system respectively; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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 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 in the embodiment of the present invention is not limited to the operation in the method described above, and may also perform related operations in the light supplement method of the camera provided in any other embodiment of the present invention.
The memory 720 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the camera, and the like. Further, the memory 720 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 720 may further include memory located remotely from processor 730, which may be connected to the camera through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 740 may be used to receive input numeric or character information and 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 and the like.
According to the camera provided by the embodiment of the invention, the position of the rotated lens is mapped into a preset coordinate system by controlling the lens of the camera to rotate in the vertical direction, so that the coordinate position of the lens is obtained, 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 a plurality of light supplementing lamp groups in the preset coordinate system respectively, 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 where the lens is located 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 rotating angle range of the lens in the vertical direction is used for supplementing light to the lens of the camera, the lens of the camera is rotated to any angle position in the vertical direction, the effect of uniform light supplementing can be achieved, and conditions are provided for acquiring high-quality images.
In order to achieve the above object, the present invention also provides a computer-readable storage medium.
The computer-readable storage medium provided by the embodiment of the present invention stores thereon a computer program, which when executed by a processor implements a light supplement method for a camera according to the embodiment of the present invention, the method including:
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;
determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system respectively; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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 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.
Computer storage media for embodiments of the invention may employ 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. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination 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 the context of 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.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. 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 for aspects 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 + + or the like 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 type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A light supplement method for a camera is characterized by comprising the following steps:
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;
determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system respectively; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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 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.
2. The method according to claim 1, wherein before controlling the target fill-in light lamp set to fill in light for the lens according to the included angle value, the method further comprises:
and dividing the light supplement angle of the target light supplement lamp group into a plurality of sub light supplement angles according to a preset equal or unequal division mode.
3. The method according to claim 2, wherein the controlling the target fill-in light set to fill in light for the lens according to the included angle value includes:
matching the included angle value with the plurality of sub-light-compensating angles;
and if the included angle value is matched with any sub light supplement angle, performing light supplement on the lens according to a light supplement mode associated with the sub light supplement angle.
4. The method according to claim 3, wherein the fill-in light mode is to turn on at least one fill-in light of a target fill-in light group to fill in light for the lens.
5. The method of claim 1, wherein after controlling the target fill-in light set to fill in light for the lens according to the included angle value, the method further comprises:
and controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp set according to the included angle value.
6. The method according to claim 5, wherein before controlling fill-in luminance of at least one fill-in lamp in the target fill-in lamp group according to the included angle value, the method 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 previous moment;
wherein the direction of rotation comprises: and turning from the first angle direction to the second angle direction, or turning from the second angle direction to the first angle direction.
7. The method according to claim 6, wherein the controlling the fill-in lamp brightness of at least one fill-in lamp in the target fill-in lamp set according to the included angle value comprises:
if the rotating direction is from the first angle direction to the second angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be reduced, and increasing the light supplement brightness of the rest light supplement lamps;
and if the rotating direction is from the second angle direction to the first angle direction, controlling the light supplement brightness of at least one light supplement lamp in the target light supplement lamp group to be increased, and reducing the light supplement brightness of the rest light supplement lamps.
8. A light supplement 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 to a preset coordinate system so as to obtain the coordinate position of the lens;
the determining module is used for determining a target supplementary lighting lamp group closest to the lens according to the coordinate position of the lens and the coordinate positions of the plurality of supplementary lighting lamp groups in the preset coordinate system; each light supplement lamp group comprises at least two light supplement lamps; the light supplementing angle of each light supplementing lamp group is determined according to a union set of 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;
the light supplementing module is used for determining an included angle value between the 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.
9. A camera, comprising:
the plurality of 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 executed by the one or more processors, cause the one or more processors to implement the method for supplementing light for a camera according to any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for supplementing light for a video camera according to any one of claims 1 to 7.
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