CN112243582A - Light supplement control method, device and system and storage medium - Google Patents
Light supplement control method, device and system and storage medium Download PDFInfo
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- CN112243582A CN112243582A CN201980033831.XA CN201980033831A CN112243582A CN 112243582 A CN112243582 A CN 112243582A CN 201980033831 A CN201980033831 A CN 201980033831A CN 112243582 A CN112243582 A CN 112243582A
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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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- 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
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Abstract
A light supplement control method, a device, a system and a storage medium are applied to a cloud deck, and a shooting device is arranged on the cloud deck. The method comprises the following steps: in the process of tracking a target object, acquiring image information of an area where the target object is located; determining brightness information of the target object in the image information; and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object. The method can track the target object continuously through the target following technology, and can dynamically change the light supplement strategy of the target object based on the display effect of the target object when the target object is followed, so that the influence of the environment on the light supplement strategy is removed, and more flexible light supplement operation is realized; the method effectively solves the problem that the picture content effect cannot reach the expectation due to the fact that the illumination cannot be dynamically changed rapidly according to the current illumination condition of the target object in the scene with complex light, and not only ensures the display effect of the target object in the image information.
Description
Technical Field
The present invention relates to the field of camera technologies, and in particular, to a light supplement control method, device, system, and storage medium.
Background
In the existing shooting technology, under the condition of complex illumination (such as backlight), the relation between a target and light rays is adjusted passively by changing the shooting direction, or active intervention is performed by manually striking a reflector, a fill-in light, a flash lamp and the like. However, the above-mentioned light supplement operation cannot ensure the light supplement effect for the target, and also requires cooperation of multiple persons, which is difficult to satisfy when shooting by a single person.
Disclosure of Invention
The invention provides a light supplement control method, a device, a system and a storage medium, which are used for solving the problems that the light supplement operation in the prior art cannot ensure the effect of light supplement for a target, and the light supplement operation needs cooperation of multiple persons and is difficult to meet the requirements when a person shoots the target.
The first aspect of the present invention is to provide a light supplement control method, which is applied to a pan/tilt head, where a shooting device is disposed on the pan/tilt head, and the method includes:
in the process of tracking a target object, acquiring image information of an area where the target object is located;
determining brightness information of the target object in the image information;
and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
The second aspect of the present invention is to provide a light supplement control device, which is applied to a pan/tilt head, wherein a shooting device is arranged on the pan/tilt head, and the device includes:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory to implement:
in the process of tracking a target object, acquiring image information of an area where the target object is located;
determining brightness information of the target object in the image information;
and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
A third aspect of the present invention is to provide a light supplement control system, including:
a holder;
the shooting device is arranged on the holder;
the light supplement control device of the second aspect is disposed on the holder, and the light supplement control device is in communication with the shooting device.
A fourth aspect of the present invention is to provide a computer-readable storage medium, where the storage medium is a computer-readable storage medium, and program instructions are stored in the computer-readable storage medium, where the program instructions are used in the fill light control method according to the first aspect.
According to the light supplement control method, the device, the system and the storage medium, the target object can be continuously tracked through the target following technology, the light supplement strategy of the target object can be dynamically changed based on the display effect of the target object in the process of following the target object, the influence of the environment on the light supplement strategy is removed, and more flexible light supplement operation is realized; the method effectively solves the problem that the picture content effect cannot reach the expectation due to the fact that illumination cannot be dynamically changed rapidly according to the current illumination condition of the target object in a scene with complex light, not only ensures the display effect of the target object in image information, but also improves the stability of following or shooting the target object, further ensures the practicability of the method, and is beneficial to popularization and application in the market.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flow chart of a light supplement control method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a process of performing light supplement operation on the target object by turning on a preset light supplement device according to an embodiment of the present invention;
fig. 3 is a first schematic flow chart illustrating a light supplement operation performed on the target object according to an embodiment of the present invention;
fig. 4 is a schematic view of a light supplement display screen according to an embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating another light supplement control method according to an embodiment of the present invention;
fig. 6 is a second schematic flowchart of a light supplement operation performed on the target object according to an embodiment of the present invention;
fig. 7 is a third schematic flowchart of a light supplement operation performed on the target object according to the embodiment of the present invention;
fig. 8 is a schematic flow chart illustrating adjustment of the shooting device by the cloud platform according to the light supplement angle according to the embodiment of the present invention;
fig. 9 is a schematic flowchart of another light supplement control method according to an embodiment of the present invention;
fig. 10 is a schematic flow chart illustrating a light supplement control method according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a light supplement control device according to an embodiment of the present invention;
fig. 12 is a first schematic structural diagram of a light supplement control system according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a light supplement control system according to an embodiment of the present invention;
fig. 14 is a first schematic structural diagram of another light supplement control system according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of another light supplement control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In order to facilitate understanding of the technical solutions of the present application, the following briefly describes the prior art:
in the shooting technology in the prior art, active intervention can be performed by manually striking a reflector, a fill-in light, a flash lamp and the like under the condition of complex illumination (for example: backlight), for example: when a mobile phone is used for self-shooting, a flash lamp is automatically started at night to perform light supplementing operation; or, the light supplement operation can be performed by adjusting the light supplement curve parameters of the preset target and the light.
However, the light supplement mode by manually operating the light reflection plate requires cooperation of multiple persons, and the requirement is difficult to meet when the light is shot by a single person; the mode of supplementing light to the target object by turning on the flash lamp can achieve the purpose of supplementing light to the target object temporarily, however, the logic for controlling turning on the flash lamp is simpler, and can only judge once according to the condition of the ambient light, so that the mode is only suitable for the application scene of photographing, and the application range is smaller; when the light supplement is performed on the target by adjusting the preset light supplement curve parameters, although the operation of light supplement on the target is realized, the effect of light supplement on the target cannot be guaranteed, and the problem of transitional exposure of the target is easily caused.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The features of the embodiments and examples described below may be combined with each other without conflict between the embodiments.
Fig. 1 is a schematic flow chart of a light supplement control method according to an embodiment of the present invention; referring to fig. 1, in order to solve the above problems in the prior art, the present embodiment provides a light supplement control method, which can be applied to a pan-tilt, where a shooting device is disposed on the pan-tilt, and the shooting device can be a camera, a video camera, or any other device with a shooting function. In addition, the main executing body of the method may be a supplementary lighting control device, and it is understood that the supplementary lighting control device may be implemented as software, or a combination of software and hardware. Specifically, the method may include:
s1: in the process of tracking the target object, image information of the area where the target object is located is acquired.
Wherein, in the process of following the target object through the camera on the cloud platform, because the motion range of target object is great, the illumination condition is probably complicated changeable very much, for example: and at this moment, in order to improve the effect of shooting or tracking the target object, whether the light supplement operation needs to be carried out on the target object or not can be judged according to the brightness information of the target object in the image information. Specifically, the image information of the area where the target object is located may be obtained by using the shooting device, where the image information may include the target object and the ambient environment information where the target object is located, and the luminance information of the target object may be obtained by analyzing and identifying the image information, so as to determine whether to perform the light supplement operation on the target object according to the luminance information of the target object.
S2: luminance information of the target object in the image information is determined.
After the image information is acquired, the image information may be analyzed, so that the luminance information of the target object in the image information may be determined, where the luminance information may include YUV information, and specifically, "Y" in the YUV information represents brightness, that is, a gray-scale value; the "U" and "V" indicate the image color and saturation, which are used to specify the color of the pixel. In addition, the embodiment does not limit the specific implementation manner of determining the brightness information of the target object in the image information, and those skilled in the art may use the prior art to obtain the brightness information, for example: the image information may be first converted into array information, and the brightness information of the target object may be determined through analysis and identification of the array information, which is not described herein again.
S3: and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
The preset threshold is a preset brightness limit value used for judging whether the brightness information of the target object meets the preset condition, the brightness limit value may be a numerical value or a numerical value interval, the size of the preset threshold is not limited in this embodiment, and a person skilled in the art can arbitrarily set the preset threshold according to a specific application scenario and an application requirement, which is not described herein again. When the brightness information is smaller than the preset threshold value, the brightness information of the target object is darker, the display effect of the target object in the image information cannot be guaranteed, and at the moment, in order to guarantee the display definition of the target object in the image information, the light supplement operation can be automatically carried out on the target object, so that the display effect of the target object in the image information is effectively guaranteed.
It should be noted that the light supplement control method in this embodiment may be applied not only to the process of tracking the target object, but also to the process of shooting the target object, and at this time, the method in this embodiment may be adaptively adjusted to: in the process of shooting the target object by using the shooting device on the holder, the image information of the area where the target object is located is obtained, the brightness information of the target object in the image information is determined, and when the brightness information is smaller than a preset threshold value, the light supplementing operation is performed on the target object, so that the effect of shooting the target object is effectively guaranteed, and the application range of the method is also expanded.
In the light supplement control method provided by this embodiment, in the process of tracking the target object or shooting the target object, the luminance information of the target object in the image information is determined, and in the case that the luminance information is insufficient, the light supplement operation can be performed on the target object, so that the display effect of the target object in the image information is effectively ensured, the stability and reliability of tracking or shooting the target object are improved, the practicability of the method is further ensured, and the popularization and application in the market are facilitated.
On the basis of the foregoing embodiments, with reference to fig. 1, a specific implementation manner of the light supplement operation on the target object is not limited in this embodiment, and a person skilled in the art may set the light supplement operation according to specific application requirements and setting requirements, where a manner of implementing the light supplement operation on the target object includes:
s31: and performing light supplement operation on the target object by starting a preset light supplement device.
The preset light supplement device may include at least one of the following: the device comprises a flash lamp arranged on the shooting device, a light supplement lamp arranged on the cloud deck, and a light supplement lamp independent of the shooting device and the cloud deck. Specifically, when the light supplement operation is required to be performed on the target object, the flash lamp arranged on the shooting device, the light supplement lamp arranged on the cloud deck or the light supplement lamp independent of the shooting device and the cloud deck can be controlled to be on for a long time or work according to a preset working frequency, and the like, so long as the light supplement operation can be performed on the target object, and the display effect of the target object in the image information can be ensured.
In an embodiment, referring to fig. 2, when the preset light supplement device includes a flash lamp disposed on the shooting device, the performing the light supplement operation on the target object by turning on the preset light supplement device in this embodiment may include:
s311: video information for tracking a target object is acquired.
S312: and determining the light supplement parameters corresponding to part of video frames in the video information through the flash lamp.
S313: and performing supplementary lighting operation on the target object in the video information by using the supplementary lighting parameter.
Specifically, when the target object is tracked and shot, video information corresponding to the target object can be acquired through the shooting device, and the video information can include a plurality of video frames; when a target object in the video information needs to be subjected to light supplement operation, a flash lamp arranged in the shooting device can be utilized to perform light supplement operation, specifically, the flash lamp can be controlled to be turned on for a long time or to be turned on at a preset frequency to perform light supplement operation, wherein when the flash lamp is controlled to be turned on at the preset frequency, light supplement parameters corresponding to a part of video frames in the video information can be obtained due to the working characteristics of the flash lamp, and the light supplement parameters can include sensitivity, shutter speed and the like. After the light supplement parameters corresponding to the partial video frames are acquired, in order to ensure the display effect of the target object in the whole video information, the light supplement parameters can be utilized to perform light supplement operation on all the video frames in the whole video information, so that the operation of performing light supplement on the target object in the whole video information based on the light supplement parameters corresponding to the partial video frames is realized, the display definition of the target object in the video information is ensured, and the stability and reliability of tracking the target object are further improved.
Fig. 3 is a first schematic flow chart illustrating a light supplement operation performed on a target object according to an embodiment of the present invention; on the basis of the foregoing embodiment, with reference to fig. 3, another way for implementing a light supplement operation on a target object is provided in this embodiment, which specifically includes:
s32: and acquiring a supplementary lighting display picture corresponding to a display area, wherein the display area is used for displaying image information.
The supplementary lighting display picture can be a preset or prestored display picture, and is used for improving the brightness information of the environment where the target object is located. Specifically, the supplementary lighting display picture may be stored in a preset region or a preset device, and the supplementary lighting display picture corresponding to the display region may be acquired by accessing the preset region or the preset device. In a specific application, the supplementary lighting display image may include at least one of: a pure color picture with preset color and a graphic picture with preset color; the preset color is a color with the brightness larger than or equal to a preset brightness threshold, the preset brightness threshold can be preset brightness limit, and when the brightness of the color is larger than or equal to the preset brightness threshold, the color is the preset color meeting the condition; and when the brightness of the color is smaller than the preset brightness threshold value, the color is the color which does not meet the condition. In addition, the present embodiment does not limit the numerical range of the preset brightness threshold, and those skilled in the art may set the preset brightness threshold according to specific application requirements and design requirements, for example: if the white luminance information is 100% and the black luminance information is 0, the preset luminance threshold may be 80%, 85%, 90%, or 95%, and so on, as long as the effect of performing light supplement by using the luminance information of the light supplement display picture as the target object can be achieved, which is not described herein again.
In addition, the embodiment does not limit the specific graphic shape of the graphic picture with the preset color, and those skilled in the art can set the specific graphic shape according to specific application requirements and design requirements, for example: the graphic picture with the preset color may be set as an annular picture with the preset color, and at this time, when the target object is a portrait of a human being, the displayed annular picture with the preset color is used, for example: when carrying out closely light filling to target object, and target object is the personage, in order to guarantee target object's display effect, can control and show pure white annular picture in the display area, as shown in fig. 4 to realized that the light filling to target object is softer, and can demonstrate bright reflection in the eye of personage, seem that the eye is more keen, improved the shooting effect of personage effectively. Or, the graphic picture with the preset color can be set to be a square picture with the preset color, and at this time, when the target object is a moving object, stable and effective light supplement operation can be performed on the target object. Of course, those skilled in the art may set the graphic frame to have other shape structures as long as light supplement can be performed on the target object and the display effect of the target object in the image information is ensured, which is not described herein again.
S33: and displaying the supplementary lighting display picture in the display area so as to realize supplementary lighting operation on the target object.
After the supplementary lighting display picture is obtained, the supplementary lighting display picture can be displayed in the display area, the operation is simple and convenient, the supplementary lighting operation on the target object is effectively realized, and the display effect of the target object is ensured.
In addition, when the supplementary lighting display screen is displayed in the display area, a screen for tracking or shooting the target object may be displayed or not displayed in the display area. For example: when a user shoots or tracks a target object through a front camera of a mobile phone, when the brightness of the target object is dark, a light supplement display picture can be displayed through a display screen of the mobile phone to perform light supplement operation on the target object, and at the moment, a picture for tracking or shooting the target object can be displayed in the display screen of the mobile phone, for example: the picture of tracking or photographing the target object may be displayed in one corner of the display screen in a reduced preview picture manner, for example: the preview screen is displayed in the upper left corner in the display screen, or the preview screen is displayed in the upper right corner in the display screen, or the like. Or, the display screen of the mobile phone may not display the picture of shooting the target object, and after the shooting of the target object is completed, the display screen of the mobile phone may adjust the displayed supplementary lighting display picture to the picture of shooting the target object, so that the user may obtain the effect of shooting the target object.
Fig. 5 is a flowchart illustrating a flow chart of another light supplement control method according to an embodiment of the present invention; on the basis of the foregoing embodiment, with reference to fig. 5, when the fill-in light display screen is displayed in the display area, the method in this embodiment may further include:
s101: a preview area is determined in the display area.
S102: and previewing and displaying the target object through the preview area.
Specifically, in the process of tracking the target object, the target object may be tracked and photographed by using a rear camera or a front camera of the photographing device, when the target object is tracked and photographed by using the front camera of the photographing device and the supplementary lighting display picture is displayed in the display area, a preview area may be set in the display area, and the preview area may be set at a corner of the display area, for example, the preview area is set at the upper left corner, the upper right corner, the lower left corner or the lower right corner of the display area, and the like, so that the target object may be previewed and displayed in the preview area, thereby enabling the user to intuitively know the tracking and photographing effect of the target object.
Fig. 6 is a second schematic flowchart of a light supplement operation performed on a target object according to an embodiment of the present invention; on the basis of the foregoing embodiment, with reference to fig. 6, in this embodiment, a further method for implementing a light supplement operation on a target object is provided, which specifically includes:
s34: shooting parameters corresponding to the target object are acquired.
S35: and adjusting the shooting parameters to realize the light supplement operation on the target object.
When the target object is subjected to tracking shooting by using the shooting device, shooting parameters corresponding to the target object can be acquired, and the shooting parameters can include sensitivity, shutter speed and the like for measuring the sensitivity of the negative film to light. After the shooting parameters are acquired, the shooting parameters can be adjusted, so that the light supplement operation on the target object is realized. Specifically, when the shooting parameter includes sensitivity; adjusting the photographing parameters may include:
s351: sensitivity corresponding to the target object is increased.
The specific range of improving the sensitivity is not limited in this embodiment, and a person skilled in the art can adjust the sensitivity according to a specific application scene and an application requirement, and after the sensitivity corresponding to the target object is improved, the sensitivity of the negative film to light can be increased, so that the light supplementing operation for the target object is realized.
Alternatively, when the shooting parameters include a shutter speed, the adjusting the shooting parameters in the embodiment may include:
s352: the shutter speed corresponding to the target object is increased.
In the embodiment, the specific range of increasing the shutter speed is not limited, and a person skilled in the art can adjust the shutter speed according to a specific application scene and an application requirement, and after the shutter speed corresponding to the target object is increased, not only can the display effect of the target object in the display area be ensured, but also the shooting device can easily capture the target object moving rapidly, so that the stability and reliability of tracking the target object are ensured.
Fig. 7 is a third schematic flowchart of a light supplement operation performed on a target object according to an embodiment of the present invention; on the basis of the foregoing embodiment, with reference to fig. 7, another way for implementing a light supplement operation on a target object is provided in this embodiment, which specifically includes:
s301: and determining a light supplement angle corresponding to the target object according to the brightness information of the target object.
S302: and adjusting the shooting device through the cloud platform according to the light supplementing angle.
Specifically, after the luminance information of the target object is acquired, the fill-in angle corresponding to the target object may be determined according to the luminance information of the target object. After the light supplement angle is acquired, the shooting device can be adjusted through the cloud platform, so that light supplement operation on the target object based on the light supplement angle is achieved. Specifically, as shown in fig. 8, the adjusting of the shooting device by the cradle head according to the light supplement angle in this embodiment may include:
s3021: position information of a target object and a photographing angle of a photographing device are acquired.
S3022: and determining the target shooting angle of the shooting device according to the light supplementing angle and the position information of the target object.
S3023: through the cloud platform, adjust the shooting angle of shooting device for the angle is shot to the target.
Specifically, when the target object is tracked and shot by the shooting device, the position information of the target object and the shooting angle of the shooting device can be acquired; after the light supplement angle is acquired, the light supplement angle and the position information of the target object can be analyzed, so that the target shooting angle of the shooting device can be determined. Because the shooting device is arranged on the holder, the shooting angle of the shooting device can be adjusted by adjusting the holder, so that the shooting angle of the shooting device can be adjusted to be the target shooting angle, the operation of supplementing light to the target object based on the light supplementing angle is realized, and the quality and the efficiency of supplementing light to the target object are further improved.
Fig. 9 is a flowchart illustrating a flowchart of another light supplement control method according to an embodiment of the present invention; on the basis of any one of the above embodiments, with continuing reference to fig. 9, in order to improve the practicability of the method, the method in this embodiment may further include:
s401: and when the brightness information is greater than or equal to the preset threshold value, acquiring the ambient brightness information and the shooting light information of the environment where the target object is located.
S402: and when the ambient brightness information is greater than or equal to the preset threshold value and the shooting light information is in a non-backlight state, stopping performing light supplementing operation on the target object. Alternatively, the first and second electrodes may be,
s403: and when the ambient brightness information is smaller than the preset threshold value or the shooting light information is in a backlight state, continuing to perform light supplementing operation on the target object.
Specifically, when the result of the analysis processing of the brightness information is that the brightness information is greater than or equal to a preset threshold, it is indicated that the brightness information of the target object in the display area meets a preset brightness requirement, and in order to further ensure the effect of tracking shooting of the target object, the ambient brightness information and the shooting light information of the environment where the target object is located can be obtained, wherein the shooting light information may include backlight information and non-backlight information; and further judging whether the light supplementing operation needs to be carried out on the target object or not according to the ambient brightness information and the shooting light information. Specifically, when the ambient brightness information and the shooting light information of the environment where the target object is located are obtained, the ambient brightness information and the shooting light information of the environment where the target object is located can be obtained through analysis and identification of the image information.
After the environment brightness information and the shooting light information are obtained, the environment brightness information and the shooting light information can be analyzed and processed, specifically, the environment brightness information is compared with a preset threshold value, whether the shooting light information is backlight information or not is judged, when the environment brightness information is larger than or equal to the preset threshold value and the shooting light information is in a non-backlight state, the light information of the target object and the light information of the environment at the moment meet the preset tracking shooting requirement, and then the light supplementing operation on the target object can be stopped; specifically, when the light supplement operation on the target object needs to be stopped, the method may include: closing the preset light supplement equipment; or stopping displaying the supplementary lighting display picture in the display area. When the ambient brightness information is less than the preset threshold value or the shooting light information is backlight information, it is indicated that the light information of the environment where the target object is located at the moment does not meet the preset tracking shooting requirement, and therefore, in order to ensure the tracking shooting effect of the target object, the light supplementing operation can be continuously performed on the target object.
The method has the advantages that when the light supplementing operation of the target object is stopped is judged according to the ambient brightness information and the shooting light information, the light supplementing operation of the target object can be continuously performed when the light supplementing operation of the target object is required, and the light supplementing operation of the target object can be stopped in time when the light supplementing operation of the target object is not required, so that the display effect of the target object is ensured, the waste of power resources and data resources is effectively avoided, and the flexibility and the reliability of the method are further improved.
On the basis of any one of the above embodiments, in the process of tracking the target object, the method in this embodiment may further include:
s501: the control target object is located within a field of view of the camera.
In the process of tracking the target object, in order to ensure the stability and reliability of tracking shooting, the target object can be controlled to be positioned in the range of a visual field of the shooting device, that is, in the process of tracking the target object, the target object can be positioned at the central position of image information as much as possible, so that the condition of losing the target object is avoided, and the stability and reliability of the method are further improved.
In specific application, referring to fig. 10, an embodiment of the present application provides a light supplement control method, including:
step 1: and determining a target object to be tracked, and tracking the target object.
In the display area, the target objects and the environment information where the target objects are located are displayed, wherein the number of the target objects can be one or more, and after the target objects to be tracked are determined, the target objects can be calibrated and displayed by using the mark frame, so that a user can conveniently and clearly know the display positions of the target objects in the display area.
step 2: in the process of tracking the target object, image information of the area where the target object is located is obtained, and brightness information of the target object in the image information is determined.
After the target object to be tracked is determined, the image information can be analyzed and identified, and the brightness information in the target object mark frame is counted, so that the brightness information of the target object in the image information can be acquired.
step 3: and judging whether the target object is too dark according to the brightness information.
After the brightness information is acquired, the brightness information may be compared with a preset brightness threshold, if the brightness information is less than the brightness threshold, it may be determined that the target object is too dark, and if the brightness information is greater than or equal to the brightness threshold, it may be determined that the brightness information of the target object meets a preset requirement.
step 4: when the target object is too dark, the light supplement operation can be performed on the target object.
Specifically, the supplementary lighting operation on the target object may include at least one of:
(1) the light sensitivity of the shooting device is improved or the shutter time length is increased. Although the method can increase the brightness of the target object, in a backlight scene, the method is easy to overexpose the background information in the image information, so that the display effect of the whole image information is influenced, and therefore, the method can be applied to a non-backlight application scene.
(2) Continuously, the light supplement operation is performed on the target object by starting the preset light supplement device, and the preset light supplement device may include at least one of the following: the device comprises a flash lamp arranged on the shooting device, a light supplement lamp arranged on the cloud platform, the flash lamp arranged on the back of the cloud platform and the light supplement lamp independent of the shooting device and the cloud platform. The light supplement mode can effectively improve the brightness of the target object under the condition of low illumination, and can reduce the background overexposure under the condition of backlight.
(3) Controlling the display area to display a preset supplementary lighting display picture, wherein the supplementary lighting display picture comprises at least one of the following pictures: a pure color picture with preset color and a graphic picture with preset color; the preset color is a color with the brightness larger than or equal to a preset brightness threshold value.
(4) The position information of the target object and the shooting angle of the shooting device are obtained, and the shooting angle of the shooting device is adjusted through the holder, so that the effect of light supplement for the target object is achieved.
Because the shooting device is arranged on the cloud deck, and when the light supplementing operation is carried out through a flash lamp or a light supplementing lamp on the shooting device, the light supplementing angle of the shooting device can influence the light supplementing effect of the target object, because the light supplementing angle of the shooting device can be adjusted in order to ensure the light supplementing effect of the target object, specifically, the light supplementing angle of the shooting device can be adjusted through the adjustment of the cloud deck, and therefore the effect of supplementing light to the target object is achieved.
step 5: after the light supplementing operation is carried out on the target object, the display effect of the target object can be guaranteed, at the moment, the brightness information of the target object can meet the preset requirement, and after the fact that the brightness information of the target object meets the preset requirement is determined, whether the ambient brightness is bright enough and not backlighted can be continuously judged.
step 6: when the environment is bright enough and is not backlight, the light supplementing operation on the target object can be stopped; when the environment is not bright enough or in the reverse light, the light supplement operation can be continuously performed on the target object.
When the light supplement operation of the target object is stopped, the flash lamp arranged on the shooting device, the light supplement lamp arranged on the cloud deck and the light supplement lamp independent of the shooting device and the cloud deck can be turned off, or the displayed light supplement display picture can be turned off, so that the light supplement operation of the target object is stopped.
step 7: after the light supplement operation on the target object is stopped, light supplement judgment can be continuously performed on next frame data in the video information of the tracking target object.
According to the light supplement control method provided by the embodiment, the target object can be continuously tracked through the target following technology, in the process of following the target object, the light supplement strategy of the target object can be dynamically changed based on the display effect of the target object, the influence of the environment on the light supplement strategy is removed, and more flexible light supplement operation is realized; the method effectively solves the problem that the picture content effect cannot reach the expectation due to the fact that illumination cannot be dynamically changed rapidly according to the current illumination condition of the target object in a scene with complex light, not only ensures the display effect of the target object in image information, but also improves the stability of following or shooting the target object, further ensures the practicability of the method, and is beneficial to popularization and application in the market.
Fig. 11 is a schematic structural diagram of a light supplement control device according to an embodiment of the present invention; referring to fig. 11, this embodiment provides a light supplement control device, and this light supplement control device is applied to the cloud platform, is provided with the shooting device on the cloud platform, and shooting device and light supplement control device communication connection promptly to can carry out the light supplement control method shown in above-mentioned fig. 1, specifically, this light supplement control device can include:
a memory 12 for storing a computer program;
a processor 11 for executing the computer program stored in the memory to implement:
in the process of tracking a target object, acquiring image information of an area where the target object is located;
determining brightness information of the target object in the image information;
and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
The structure of the supplementary lighting control device may further include a communication interface 13, which is used for communication between the electronic device and other devices or a communication network. And, the luminance information includes YUV information.
In one embodiment, when the processor 11 performs the fill-in light operation on the target object, the processor 11 is further configured to: and performing light supplement operation on the target object by starting a preset light supplement device.
In one embodiment, the preset supplementary lighting device includes: and the flash lamp is arranged on the shooting device.
In an embodiment, in the processor 11, the processor 11 is further configured to perform a light supplement operation on the target object by turning on a preset light supplement device, and the processor 11 is further configured to: acquiring video information for tracking a target object; determining a supplementary lighting parameter corresponding to a part of video frames in the video information through a flash lamp; and performing supplementary lighting operation on the target object in the video information by using the supplementary lighting parameter.
In one embodiment, the preset supplementary lighting device includes at least one of: the light supplement lamp is arranged on the holder; light filling lamp independent of shooting device and cloud platform.
In one embodiment, when the processor 11 performs the fill-in light operation on the target object, the processor 11 is further configured to: acquiring a light supplement display picture corresponding to a display area, wherein the display area is used for displaying image information; and displaying the supplementary lighting display picture in the display area so as to realize supplementary lighting operation on the target object.
In one embodiment, the fill-in display includes at least one of: a pure color picture with preset color and a graphic picture with preset color; the preset color is a color with the brightness larger than or equal to a preset brightness threshold value. The preset color graphic picture includes a preset color ring picture.
In one embodiment, when the supplementary light display screen is displayed in the display area, the processor 11 is further configured to: determining a preview area in the display area; and previewing and displaying the target object through the preview area.
In one embodiment, when the processor 11 performs the fill-in light operation on the target object, the processor 11 is further configured to: acquiring shooting parameters corresponding to a target object; and adjusting the shooting parameters to realize the light supplement operation on the target object.
In one embodiment, the shooting parameters include sensitivity; when the processor 11 adjusts the shooting parameters, the processor 11 is further configured to: sensitivity corresponding to the target object is increased.
In one embodiment, the shooting parameters include shutter speed; when the processor 11 adjusts the shooting parameters, the processor 11 is further configured to: the shutter speed corresponding to the target object is increased.
In one embodiment, when the processor 11 performs the fill-in light operation on the target object, the processor 11 is further configured to: determining a light supplementing angle corresponding to the target object according to the brightness information of the target object; and adjusting the shooting device through the cloud platform according to the light supplementing angle.
In an embodiment, when the processor 11 adjusts the shooting device through the cloud platform according to the light supplement angle, the processor 11 is further configured to: acquiring position information of a target object and a shooting angle of a shooting device; determining a target shooting angle of the shooting device according to the light supplementing angle and the position information of the target object; through the cloud platform, adjust the shooting angle of shooting device for the angle is shot to the target.
In one embodiment, the processor 11 is further configured to: when the brightness information is greater than or equal to a preset threshold value, acquiring the ambient brightness information and the shooting light information of the environment where the target object is located; when the ambient brightness information is greater than or equal to a preset threshold value and the shooting light information is in a non-backlight state, stopping performing light supplementing operation on the target object; or when the ambient brightness information is smaller than the preset threshold value or the shooting light information is in a backlight state, continuing to perform light supplementing operation on the target object.
In one embodiment, when the processor 11 stops the light supplement operation on the target object, the processor 11 is further configured to: closing the preset light supplement equipment; or stopping displaying the supplementary lighting display picture in the display area.
In one embodiment, in tracking the target object, the processor 11 is further configured to: the control target object is located within a field of view of the camera.
The light supplement control device shown in fig. 11 may perform the method of the embodiment shown in fig. 1 to 10, and reference may be made to the related description of the embodiment shown in fig. 1 to 10 for a part not described in detail in this embodiment. The implementation process and technical effect of the technical solution refer to the descriptions in the embodiments shown in fig. 1 to fig. 10, and are not described herein again.
In addition, an embodiment of the present invention provides a computer-readable storage medium, where the storage medium is a computer-readable storage medium, and program instructions are stored in the computer-readable storage medium, where the program instructions are used to implement the light supplement control method in fig. 1 to 10.
Fig. 12 is a first schematic structural diagram of a light supplement control system according to an embodiment of the present invention; fig. 13 is a schematic structural diagram of a light supplement control system according to an embodiment of the present invention; referring to fig. 12 to 13, the present embodiment provides a light supplement control system, including:
a pan/tilt head 100;
the shooting device 200 is arranged on the holder 100;
the light supplement control device shown in fig. 11 is disposed on the pan/tilt head 100, and is in communication connection with the photographing device 200.
Referring to fig. 12-13, the tripod head 100 further comprises a first motor 107, a second motor 108 and a third motor 109, one end of the first motor 107 is connected to the first support 101 through a rotating member 104, and the rotating member 104 is used for enabling the first support 101 to rotate relative to the first motor 107, so that the tripod head 100 can be switched between a storage state and a use state; and the other end of the first motor 107 is connected with the carrier 10 for driving the first support 101 to rotate relative to the carrier 10; the second motor 108 is arranged on the first bracket 101 and is used for driving the second bracket 102 to rotate relative to the first bracket 101; the third motor 109 is disposed on the second support 102 and configured to drive the third support 103 to rotate relative to the second support 102, where the third support 103 is configured to carry the photographing device 200. It is understood that in other embodiments, the number of holders included on the head 100 may be one, two, four, or more. Based on the structure of the above-described pan/tilt head 100, the effect of adjusting the shooting angle of the shooting device 200 can be achieved by adjusting the first support 101, the second support 102, and the third support 103.
In addition, the implementation process and technical effects of the fill light control system shown in fig. 12 to 13 refer to the description in the embodiment shown in fig. 11, and are not described herein again.
Fig. 14 is a first schematic structural diagram of another light supplement control system according to an embodiment of the present invention; fig. 15 is a schematic structural diagram of another light supplement control system according to an embodiment of the present invention. Referring to fig. 14 to 15, the present embodiment provides another light supplement control system, including:
a pan/tilt head 100;
the shooting device 200 is arranged on the holder 100;
the light supplement control device shown in fig. 11 is disposed on the pan/tilt head 100, and is in communication connection with the photographing device 200.
Referring to fig. 14-15, the pan/tilt head 100 further includes a first motor 101, a second motor 102, and a third motor 103, wherein the first motor 101 is a pitch axis motor, the second motor 102 is a roll axis motor, and the third motor 103 is a translation axis motor, and when the target object is tracked and shot by the shooting device 200 on the pan/tilt head 100, the pitch axis angle of the pan/tilt head 100 can be manually adjusted by the first motor 101; in addition, in the moving time-lapse photography mode, besides the pitch axis angle of the pan/tilt head 100 can be manually adjusted, the translation axis angle of the pan/tilt head 100 can be manually adjusted by the third motor 103. Based on the structure of the above-mentioned pan/tilt head 100, the effect of adjusting the shooting angle of the shooting device 200 can be achieved by adjusting the angle of the pitch axis or the angle of the translation axis.
In addition, the implementation process and technical effects of the light supplement control system shown in fig. 14 to 15 refer to the description in the embodiment shown in fig. 11, and are not described herein again.
The technical solutions and the technical features in the above embodiments may be used alone or in combination in case of conflict with the present disclosure, and all embodiments that fall within the scope of protection of the present disclosure are intended to be equivalent embodiments as long as they do not exceed the scope of recognition of those skilled in the art.
In the embodiments provided in the present invention, it should be understood that the disclosed related remote control device and method can be implemented in other ways. For example, the above-described remote control device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, remote control devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (38)
1. The light supplement control method is applied to a holder, a shooting device is arranged on the holder, and the method comprises the following steps:
in the process of tracking a target object, acquiring image information of an area where the target object is located;
determining brightness information of the target object in the image information;
and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
2. The method of claim 1, wherein performing a fill-in operation on the target object comprises:
and performing light supplement operation on the target object by starting a preset light supplement device.
3. The method of claim 2, wherein the predetermined fill-in lighting device comprises: and the flash lamp is arranged on the shooting device.
4. The method according to claim 3, wherein the performing a supplementary lighting operation on the target object by turning on a preset supplementary lighting device comprises:
acquiring video information for tracking the target object;
determining a supplementary lighting parameter corresponding to a part of video frames in the video information through the flash lamp;
and performing light supplement operation on the target object in the video information by using the light supplement parameter.
5. The method of claim 2, wherein the predetermined fill-in light device comprises at least one of:
the light supplement lamp is arranged on the holder, and the holder is used for bearing the shooting device;
and the light supplement lamp is independent of the shooting device and the holder.
6. The method of claim 1, wherein performing a fill-in operation on the target object comprises:
acquiring a light supplement display picture corresponding to a display area, wherein the display area is used for displaying the image information;
and displaying the supplementary lighting display picture in the display area so as to realize supplementary lighting operation on the target object.
7. The method of claim 6,
the supplementary lighting display picture comprises at least one of the following components: a pure color picture with preset color and a graphic picture with preset color; and the preset color is a color with the brightness larger than or equal to a preset brightness threshold value.
8. The method according to claim 7, wherein the preset color graphic picture comprises a preset color ring picture.
9. The method according to claim 6, wherein when the supplementary light display screen is displayed in the display area, the method further comprises:
determining a preview area in the display area;
and previewing and displaying the target object through the preview area.
10. The method of claim 1, wherein performing a fill-in operation on the target object comprises:
acquiring shooting parameters corresponding to the target object;
and adjusting the shooting parameters to realize the light supplement operation on the target object.
11. The method according to claim 10, wherein the shooting parameter includes sensitivity; adjusting the shooting parameters, including:
increasing sensitivity corresponding to the target object.
12. The method of claim 10, wherein the shooting parameters include shutter speed; adjusting the shooting parameters, including:
increasing a shutter speed corresponding to the target object.
13. The method according to any one of claims 1-12, wherein performing a fill-in operation on the target object comprises:
determining a light supplement angle corresponding to the target object according to the brightness information of the target object;
and adjusting the shooting device through the cloud platform according to the light supplementing angle.
14. The method of claim 13, wherein adjusting the camera through the cloud platform according to the fill-in light angle comprises:
acquiring the position information of the target object and the shooting angle of the shooting device;
determining a target shooting angle of the shooting device according to the light supplementing angle and the position information of the target object;
and adjusting the shooting angle of the shooting device to be a target shooting angle through the cloud deck.
15. The method according to any of claims 1-12, wherein the luminance information comprises YUV information.
16. The method according to any one of claims 1-12, further comprising:
when the brightness information is larger than or equal to a preset threshold value, acquiring the ambient brightness information and the shooting light information of the environment where the target object is located;
when the ambient brightness information is greater than or equal to a preset threshold value and the shooting light information is in a non-backlight state, stopping performing light supplementing operation on the target object; alternatively, the first and second electrodes may be,
and when the ambient brightness information is smaller than a preset threshold value or the shooting light information is in a backlight state, continuing to perform light supplementing operation on the target object.
17. The method of claim 16, wherein ceasing the supplementary lighting operation on the target object comprises:
closing the preset light supplement equipment; alternatively, the first and second electrodes may be,
and stopping displaying the supplementary lighting display picture in the display area.
18. The method of any one of claims 1-12, wherein in tracking the target object, the method further comprises:
and controlling the target object to be positioned in the field of view of the shooting device.
19. The utility model provides a light filling controlling means, its characterized in that is applied to the cloud platform, be provided with the shooting device on the cloud platform, the device includes:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory to implement:
in the process of tracking a target object, acquiring image information of an area where the target object is located;
determining brightness information of the target object in the image information;
and when the brightness information is smaller than a preset threshold value, performing light supplement operation on the target object.
20. The apparatus of claim 19, wherein when the processor performs a fill light operation on the target object, the processor is further configured to:
and performing light supplement operation on the target object by starting a preset light supplement device.
21. The apparatus of claim 20, wherein the predetermined fill-in light device comprises: and the flash lamp is arranged on the shooting device.
22. The apparatus according to claim 21, wherein the processor performs a fill-in operation on the target object by turning on a preset fill-in device, and the processor is further configured to:
acquiring video information for tracking the target object;
determining a supplementary lighting parameter corresponding to a part of video frames in the video information through the flash lamp;
and performing light supplement operation on the target object in the video information by using the light supplement parameter.
23. The apparatus of claim 20, wherein the predetermined fill-in light device comprises at least one of:
the light supplement lamp is arranged on the holder, and the holder is used for bearing the shooting device;
and the light supplement lamp is independent of the shooting device and the holder.
24. The apparatus of claim 19, wherein when the processor performs a fill light operation on the target object, the processor is further configured to:
acquiring a light supplement display picture corresponding to a display area, wherein the display area is used for displaying the image information;
and displaying the supplementary lighting display picture in the display area so as to realize supplementary lighting operation on the target object.
25. The apparatus of claim 24,
the supplementary lighting display picture comprises at least one of the following components: a pure color picture with preset color and a graphic picture with preset color; and the preset color is a color with the brightness larger than or equal to a preset brightness threshold value.
26. The apparatus according to claim 25, wherein the preset color graphic picture comprises a preset color ring picture.
27. The apparatus of claim 24, wherein when the supplemental display is displayed in the display area, the processor is further configured to:
determining a preview area in the display area;
and previewing and displaying the target object through the preview area.
28. The apparatus of claim 19, wherein when the processor performs a fill light operation on the target object, the processor is further configured to:
acquiring shooting parameters corresponding to the target object;
and adjusting the shooting parameters to realize the light supplement operation on the target object.
29. The apparatus according to claim 28, wherein the shooting parameter includes sensitivity; when the processor adjusts the shooting parameters, the processor is further configured to:
increasing sensitivity corresponding to the target object.
30. The apparatus of claim 28, wherein the shooting parameters include shutter speed; when the processor adjusts the shooting parameters, the processor is further configured to:
increasing a shutter speed corresponding to the target object.
31. The apparatus according to any one of claims 19-30, wherein when the processor performs a fill lighting operation on the target object, the processor is further configured to:
determining a light supplement angle corresponding to the target object according to the brightness information of the target object;
and adjusting the shooting device through the cloud platform according to the light supplementing angle.
32. The apparatus of claim 31, wherein when the processor adjusts the camera through the cloud platform according to the fill-in light angle, the processor is further configured to:
acquiring the position information of the target object and the shooting angle of the shooting device;
determining a target shooting angle of the shooting device according to the light supplementing angle and the position information of the target object;
and adjusting the shooting angle of the shooting device to be a target shooting angle through the cloud deck.
33. The apparatus according to any of claims 19-30, wherein the luminance information comprises YUV information.
34. The apparatus according to any one of claims 19-30, wherein the processor is further configured to:
when the brightness information is larger than or equal to a preset threshold value, acquiring the ambient brightness information and the shooting light information of the environment where the target object is located;
when the ambient brightness information is greater than or equal to a preset threshold value and the shooting light information is in a non-backlight state, stopping performing light supplementing operation on the target object; alternatively, the first and second electrodes may be,
and when the ambient brightness information is smaller than a preset threshold value or the shooting light information is in a backlight state, continuing to perform light supplementing operation on the target object.
35. The apparatus of claim 34, wherein when the processor ceases to perform the fill light operation on the target object, the processor is further configured to:
closing the preset light supplement equipment; alternatively, the first and second electrodes may be,
and stopping displaying the supplementary lighting display picture in the display area.
36. The apparatus of any of claims 19-30, wherein in tracking the target object, the processor is further configured to:
and controlling the target object to be positioned in the field of view of the shooting device.
37. A light supplement control system, comprising:
a holder;
the shooting device is arranged on the holder;
the fill-in light control device of any one of claims 19 to 36, disposed on the pan/tilt head, wherein the fill-in light control device is in communication with the camera.
38. A computer-readable storage medium, wherein the storage medium is a computer-readable storage medium, and program instructions are stored in the computer-readable storage medium, and the program instructions are used to implement the light supplement control method according to any one of claims 1 to 18.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/103815 WO2021035723A1 (en) | 2019-08-30 | 2019-08-30 | Fill light control method, device and system and storage medium |
Publications (1)
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| CN112243582A true CN112243582A (en) | 2021-01-19 |
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| CN201980033831.XA Pending CN112243582A (en) | 2019-08-30 | 2019-08-30 | Light supplement control method, device and system and storage medium |
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| CN (1) | CN112243582A (en) |
| WO (1) | WO2021035723A1 (en) |
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