CN116709614B - Light control method, light control device, computer equipment and computer readable storage medium - Google Patents
Light control method, light control device, computer equipment and computer readable storage medium Download PDFInfo
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- 238000005457 optimization Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 5
- 238000012549 training Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/125—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras
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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 application provides a light control method, a light control device, computer equipment and a readable storage medium, wherein a target object is detected from a target image shot in real time, and initial position information of the target object and target light is obtained; acquiring initial illumination information of a target object and initial lamplight power information of target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and target lamplight; and determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, and adjusting the initial light power information to be the target light power information, thereby solving the technical problem of image blurring of shooting equipment caused by exposure abnormality.
Description
Technical Field
The present application relates to the field of light control technologies, and in particular, to a light control method, a light control device, a computer device, and a computer readable storage medium.
Background
The illuminance decay relationship is proportional to the square of the distance during the propagation of light, so that the illuminance varies considerably at different distances from the light source, for example: when the distance from the light source is 50 cm and the distance from the light source is 1 m, the illumination difference between the light source and the light source is up to 4 times, the exposure of the camera is 2 STPs, the brightness of pictures shot by the camera can be greatly different, even overexposure, underexposure, color cast and the like can be caused, and the normal exposure requirement can not be met.
Researchers of the application find that in the live broadcast process, a host needs to show some goods and articles to watch for audiences, the goods and articles can be put in front of the camera by stretching, and the camera can not timely adjust exposure parameters to enable the exposure of the goods and articles to be correct in many cases. Meanwhile, the camera is not in time in automatic focusing because the camera cannot be adjusted to correct exposure in time, and longer-time image blurring exists. This condition can affect the live cadence, destroy the atmosphere, lead to shifts in audience focus, and affect the final information transfer quality and efficiency.
Disclosure of Invention
The application provides a light control method, a light control device, computer equipment and a readable storage medium, which aim to solve the technical problem that a camera is not in automatic focusing and has longer-time picture blurring caused by not being capable of being timely adjusted to correct exposure.
In one aspect, the present application provides a light control method, the method comprising:
detecting a target object from a target image shot in real time, and acquiring initial position information of the target object and target lamplight;
acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight;
if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight;
and determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information into target lamplight power information.
In one possible implementation manner of the application, the basic parameters of the target lamplight comprise preset lamplight effective power coefficients and lamplight luminous angle parameters;
the determining the target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light includes:
and determining target lamplight power information of the target lamplight based on the lamplight effective power coefficient, the lamplight luminous angle parameter, the target distance information and the initial illumination information.
In one possible implementation manner of the present application, the target objects include a first target object and a second target object, and the initial position information includes first initial position information of the first target object and the target light, and second initial position information of the second target object and the target light;
and if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight, wherein the step comprises the following steps:
if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight;
and/or the number of the groups of groups,
if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight;
the step of determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light includes:
taking the smaller one of the first distance information and the second distance information as target distance information;
And determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light.
In one possible implementation manner of the present application, the target light includes a main light and an auxiliary light, and the auxiliary light receives a control signal sent from the main light, and adjusts the target light power in a linkage manner, so as to adjust the initial light power information into target light power information.
In one possible implementation manner of the present application, the detecting the target object from the target image photographed in real time includes:
the target object is detected from the target image photographed in real time based on a pre-trained target object recognition model.
In one possible implementation manner of the present application, before detecting the target object from the target image photographed in real time based on the pre-trained target object recognition model, the method further includes:
acquiring an image data set, preprocessing and dividing the image data set to obtain a target image data set;
training a preset initial model based on the target image data set to obtain an initial object recognition model;
And optimizing the initial object recognition model based on a preset optimization algorithm to obtain the target object recognition model.
In one possible implementation manner of the present application, the detecting that the position of the target object changes according to the initial position information includes:
acquiring second position information of the target object and target lamplight in real time;
comparing the second position information with the initial position information;
and if the second position information is different from the initial position information, determining that the position of the target object is changed.
In one possible implementation manner of the application, the target image is an image in a live broadcast scene, the target image comprises a host and a product object currently taught by the host, the target object detected from the target image shot in real time comprises the product object, and the target lamplight comprises lamplight in the host scene.
In another aspect, the present application provides a light control apparatus, the apparatus comprising:
the device comprises a first detection unit and a first acquisition unit, wherein the first detection unit and the first acquisition unit are used for detecting a target object from a target image shot in real time and acquiring initial position information of the target object and target lamplight;
The second acquisition unit is used for acquiring the initial illumination information of the target object and the initial lamplight power information of the target lamplight;
the second detection unit and the third acquisition unit are used for acquiring target distance information of the target object and the target lamplight if the position of the target object is detected to be changed according to the initial position information;
the first determining unit and the first adjusting unit are used for determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information into target lamplight power information.
In one possible implementation manner of the application, the basic parameters of the target lamplight comprise preset lamplight effective power coefficients and lamplight luminous angle parameters;
the first determining unit is specifically configured to:
and determining target lamplight power information of the target lamplight based on the lamplight effective power coefficient, the lamplight luminous angle parameter, the target distance information and the initial illumination information.
In one possible implementation manner of the present application, the target objects include a first target object and a second target object, and the initial position information includes first initial position information of the first target object and the target light, and second initial position information of the second target object and the target light;
The second detection unit and the third acquisition unit are specifically configured to:
if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight;
and/or the number of the groups of groups,
if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight;
the first determining unit is specifically configured to:
taking the smaller one of the first distance information and the second distance information as target distance information;
and determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light.
In one possible implementation manner of the present application, the target light includes a main light and an auxiliary light, and the auxiliary light receives a control signal sent from the main light, and adjusts the target light power in a linkage manner, so as to adjust the initial light power information into target light power information.
In one possible implementation manner of the present application, the first detection unit is specifically configured to:
The target object is detected from the target image photographed in real time based on a pre-trained target object recognition model.
In a possible implementation of the present application, before detecting the target object from the target image photographed in real time based on the pre-trained target object recognition model, the apparatus is further configured to:
acquiring an image data set, preprocessing and dividing the image data set to obtain a target image data set;
training a preset initial model based on the target image data set to obtain an initial object recognition model;
and optimizing the initial object recognition model based on a preset optimization algorithm to obtain the target object recognition model.
In a possible implementation manner of the present application, the second detection unit is specifically configured to:
acquiring second position information of the target object and target lamplight in real time;
comparing the second position information with the initial position information;
and if the second position information is different from the initial position information, determining that the position of the target object is changed.
In one possible implementation manner of the application, the target image is an image in a live broadcast scene, the target image comprises a host and a product object currently taught by the host, the target object detected from the target image shot in real time comprises the product object, and the target lamplight comprises lamplight in the host scene.
In another aspect, the present application also provides a computer apparatus, including:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the light control method.
In another aspect, the present application also provides a computer readable storage medium having stored thereon a computer program, the computer program being loaded by a processor to perform the steps of the light control method.
According to the embodiment of the application, the target object is detected from the target image shot in real time, and the initial position information of the target object and the target lamplight is obtained; acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight; and determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, and adjusting the initial light power information into the target light power information, so that the target object is detected in the target image, other objects in the target image are prevented from interfering with the target object, the subsequent detection accuracy is improved, further, the target light power parameter is intelligently and continuously adjusted through the real-time target distance information of the target object and the target light, and correct exposure of the target object is realized in a mode of adjusting the brightness of the target light, thereby solving the technical problem of image blurring of shooting equipment caused by exposure abnormality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a light control system according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of an embodiment of a light control method according to the present application;
FIG. 3 is a schematic structural view of an embodiment of a light control device according to the present application;
FIG. 4 is a schematic diagram of an embodiment of a computer device provided in an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described as "exemplary" in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
At present, in the live broadcast process, a host needs to display some goods and articles, and the audience can stretch the articles and articles to put the articles and articles in front of the camera, and the camera can not timely adjust exposure parameters to enable the articles and articles to be exposed correctly in many cases. Meanwhile, the camera is not in time in automatic focusing because the camera cannot be adjusted to correct exposure in time, and longer-time image blurring exists. This condition can affect the live cadence, destroy the atmosphere, lead to shifts in audience focus, and affect the final information transfer quality and efficiency. For this reason, embodiments of the present application provide a light control method, a light control device, a computer device, and a computer readable storage medium, which are described in detail below.
As shown in fig. 1, fig. 1 is a schematic view of a light control system according to an embodiment of the present application, where the light control system may include a computer device 100, and a light control apparatus, such as the computer device 100 in fig. 1, is integrated in the computer device 100.
In the embodiment of the present application, the computer device 100 is mainly configured to detect a target object from a target image photographed in real time, and obtain initial position information of the target object and target light; acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight; and determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information into target lamplight power information.
In the embodiment of the present application, the computer device 100 may be a terminal or a server, and when the computer device 100 is a server, it may be an independent server, or may be a server network or a server cluster formed by servers, for example, the computer device 100 described in the embodiment of the present application includes, but is not limited to, a computer, a network host, a single network server, a plurality of network server sets, or a plurality of servers to construct a cloud server. Wherein the Cloud server is built from a large number of computers or web servers based on Cloud Computing (Cloud Computing).
It will be appreciated that when the computer device 100 is a terminal in the embodiments of the present application, the terminal used may be a device that includes both receiving and transmitting hardware, i.e., a device having receiving and transmitting hardware capable of performing two-way communications over a two-way communications link. Such a device may include: a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display. The computer device 100 may be a desktop terminal or a mobile terminal, and the computer device 100 may be one of a mobile phone, a tablet computer, a notebook computer, a live broadcast device, and the like.
It will be appreciated by those skilled in the art that the application environment shown in fig. 1 is merely an application scenario of the present application, and is not intended to limit the application scenario of the present application, and other application environments may include more or less computer devices than those shown in fig. 1, for example, only 1 computer device is shown in fig. 1, and it will be appreciated that the light control system may further include one or more other computer devices, which is not limited herein.
In addition, as shown in fig. 1, the light control system may further include a memory 200 for storing data, such as initial position information of the target object and the target light and light control data, for example, light control data when the light control system is operated.
It should be noted that, the schematic view of the light control system shown in fig. 1 is only an example, and the light control system and the scene described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the light control system and the appearance of a new service scene, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
Next, a light control method provided by the embodiment of the application is described.
In the embodiment of the light control method of the present application, a light control device is used as an execution body, and for simplicity and convenience of description, in the subsequent method embodiments, the execution body will be omitted, and the light control device is applied to a computer device, and the method includes: detecting a target object from a target image shot in real time, and acquiring initial position information of the target object and target lamplight; acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight; and determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information into target lamplight power information.
Referring to fig. 2 to 4, fig. 2 is a flowchart illustrating an embodiment of a light control method according to the present application, where the light control method includes steps 201 to 204 as follows:
201. And detecting a target object from the target image shot in real time, and acquiring initial position information of the target object and target lamplight.
The target image refers to an image shot by a preset target shooting device aiming at a target scene, wherein the target shooting device can be a mobile phone, a camera or other devices with shooting functions, the target scene can comprise but is not limited to a live scene, a character interview scene, the target scene comprises shooting devices, lighting devices, detection devices and objects to be shot, the devices and the objects to be shot are generally opposite, the devices are positioned opposite to the objects to be shot, taking the live scene as an example, in a live scene of a host, the opposite of the host is usually provided with devices such as a lamp, a camera for shooting, a mobile phone for interacting with vermicelli and the like, the lighting can be a plurality of lights, a certain surrounding form can be formed between the plurality of lights and the host, and the setting can be specifically carried out according to actual requirements.
In some embodiments of the present application, when the target image is an image in a live scene, the target image includes a main cast and a product object currently taught by the main cast, the target object detected from the target image photographed in real time includes the product object, and the target light includes light in the main cast scene.
In this embodiment, the target object may be preset, and how to set the target object will be described in detail later, in addition, the target light is preconfigured, the number of lights included in the target light and the positions of the lights may be preset, and the initial position information of the target object and the target light refers to the relative position information of the target object and the target light after the fixed position of the target light is set and the initial placement position of the target object is set, where the relative position includes not only the distance between the two but also the angle between the two and another fixed reference object.
Alternatively, the initial position information of the target object and the target light may be acquired through a preset position detection device, where the position detection device includes, but is not limited to, a distance detection device, and a space scanning device, and the distance detection device may include a binocular camera, a tof camera, or a radio transmitting and receiving device (including, but not limited to, binocular vision ranging, tof ranging, infrared ranging, ultrasonic ranging, wiFi radar, active, passive, visual, and non-visual ranging such as bluetooth radar).
202. And acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight.
The illumination intensity refers to the intensity of light received by the surface of the object. The initial illumination information of the target object refers to the light intensity received by the surface of the target object in a state that each device has been adjusted just before shooting in the target scene, and the initial light power information of the target light is the light power corresponding to the initial illumination information, which can be understood as the light power parameter corresponding to the target light when the illumination of the target object reaches the initial illumination information.
Alternatively, the initial illuminance information of the target object may be obtained using a preset illuminance meter, and the specific steps may include: the location and direction in which the intensity of illumination needs to be measured is determined. The illuminometer is placed in a selected position. Ensuring that it is not blocked or obscured from affecting the measurement. The illuminometer was turned on and calibrated. The measurement results are recorded. Illuminance is typically expressed in lumens per square meter (lux).
Alternatively, the target lamplight can be connected with the computer device, and the lamplight power of the target lamplight can be directly read by the computer device.
203. And if the position of the target object is detected to be changed according to the initial position information, acquiring the target distance information of the target object and the target lamplight.
As an alternative embodiment, detecting that the position of the target object is changed according to the initial position information includes: acquiring second position information of a target object and target lamplight in real time; comparing the second position information with the initial position information; if the second position information is different from the initial position information, the position of the target object is determined to be changed.
Alternatively, the second position information of the target object and the target light may be acquired in real time after the photographing is started through the ranging apparatus.
204. And determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information to the target lamplight power information.
As an alternative implementation manner, the target light power information of the target light can be calculated by inputting the target distance information, the initial illumination information and the basic parameters of the target light into a preset target arctangent function.
Optionally, the target arctangent function is as follows:
；
Wherein P is target light power information of target light, beta and alpha are basic parameters of the target light, R is the distance from a target object to the target light, and L is initial illumination information.
According to the embodiment of the application, the target object is detected from the target image shot in real time, and the initial position information of the target object and the target lamplight is obtained; acquiring initial illumination information of a target object and initial lamplight power information of target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and target lamplight; the method comprises the steps of determining target light power information of target light based on target distance information, initial illumination information and basic parameters of the target light, adjusting the initial light power information into the target light power information, detecting target objects in a target image, preventing other objects in the target image from interfering with the target objects, improving follow-up detection accuracy, and further, intelligently and continuously adjusting target light power parameters through real-time target distance information of the target objects and the target light to achieve correct exposure of the target objects in a mode of adjusting brightness of the target light, so that the technical problem of image blurring of shooting equipment caused by exposure abnormality is solved.
Optionally, the basic parameters of the target lamplight comprise preset lamplight effective power coefficients and lamplight luminous angle parameters; determining target light power information of the target light based on the target distance information, the initial illumination information, and the base parameters of the target light, comprising: and determining target lamplight power information of the target lamplight based on the lamplight effective power coefficient, the lamplight luminous angle parameter, the target distance information and the initial illumination information.
As an optional implementation manner, the target light power information of the target light can be obtained by inputting the target distance information, the initial illumination information, the light effective power coefficient of the target light and the light luminous angle parameter into a preset target arctangent function.
Optionally, the target arctangent function is as follows:
；
wherein P is target lamplight power information of target lamplight, alpha is target lamplight luminous angle parameter, beta is lamplight effective power coefficient of target lamplight, R is distance from a target object to the target lamplight, and L is initial illumination information.
Furthermore, in an actual target scene, such as a live broadcast scene, a host may take out a plurality of target objects, for example, box-packed potato chips with different tastes, sequentially or simultaneously in the live broadcast process, so that detection failure of the equipment can be caused, or detection confusion condition can occur, and the situation that the target light power cannot be accurately adjusted can occur.
Therefore, the above technical problems may be solved by the embodiments of the present application, and the exemplary embodiment uses two target objects as examples to continue the illustration, where the target objects include a first target object and a second target object, and the initial position information includes first initial position information of the first target object and the target light, and second initial position information of the second target object and the target light.
If the position of the target object is detected to be changed according to the initial position information, the step of obtaining the target distance information of the target object and the target lamplight may include:
and if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight.
And/or the number of the groups of groups,
and if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight.
Determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, wherein the method comprises the following steps:
the smaller of the first distance information and the second distance information is set as target distance information. In general, when a certain object needs to be displayed specifically, the object is usually brought close to the image capturing apparatus and the target light.
And determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight. Specifically, the calculation principle is the same as that of step 204, and will not be described herein.
According to the embodiment of the application, through the scheme, the technical problem that the situation that the target lamplight power cannot be accurately regulated due to the detection failure of the equipment or the detection confusion of the equipment caused by a plurality of target objects is solved, so that the intellectualization of lamplight control is further improved, and the use scene is enlarged.
In some embodiments of the present application, the target light includes a main light and an auxiliary light, the auxiliary light receives a control signal from the main light, and adjusts the target light power in a coordinated manner to adjust the initial light power information to the target light power information.
According to the embodiment of the application, through the scheme, the light effect of the target scene can be better improved, and the light control precision is improved.
In some embodiments of the present application, detecting a target object from a target image photographed in real time includes: the target object is detected from the target image photographed in real time based on a pre-trained target object recognition model.
According to the embodiment of the application, through the scheme of intelligently detecting the target object by the AI, the detection precision and efficiency are improved, and the precision and efficiency of light control are indirectly improved.
In some embodiments of the present application, before detecting the target object from the target image photographed in real time based on the pre-trained target object recognition model, the method further includes: acquiring an image data set, preprocessing and dividing the image data set to obtain a target image data set; training a preset initial model based on a target image data set to obtain an initial object recognition model; the initial model can comprise SSD, faster R-CNN and YOLO, and the initial object recognition model is optimized based on a preset optimization algorithm to obtain the target object recognition model. Wherein the optimization algorithm may include gradient descent.
In order to better implement the light control method according to the embodiment of the present application, on the basis of the light control method, a light control device is further provided in the embodiment of the present application, as shown in fig. 3, the light control device 300 includes:
the first detecting unit 301 and the first acquiring unit 302 are configured to detect a target object from a target image captured in real time, and acquire initial position information of the target object and a target light.
A second obtaining unit 303, configured to obtain initial illumination information of the target object and initial lamplight power information of the target lamplight.
The second detecting unit 304 and the third obtaining unit 305 are configured to obtain target distance information of the target object and the target light if a change in the position of the target object is detected according to the initial position information.
The first determining unit 306 and the first adjusting unit 307 are configured to determine target light power information of the target light based on the target distance information, the initial illumination information, and the basic parameters of the target light, and adjust the initial light power information to the target light power information.
In some embodiments of the present application, the basic parameters of the target lamplight include a preset lamplight effective power coefficient and a lamplight lighting angle parameter.
The first determining unit 306 is specifically configured to:
and determining target lamplight power information of the target lamplight based on the lamplight effective power coefficient, the lamplight luminous angle parameter, the target distance information and the initial illumination information.
In some embodiments of the present application, the target objects include a first target object and a second target object, and the initial position information includes first initial position information of the first target object and the target light, and second initial position information of the second target object and the target light.
The second detection unit 304 and the third acquisition unit 305 are specifically configured to:
and if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight.
And/or the number of the groups of groups,
and if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight.
The first determining unit 306 is specifically configured to:
the smaller of the first distance information and the second distance information is set as target distance information.
And determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight.
In some embodiments of the present application, the target light includes a main light and an auxiliary light, the auxiliary light receives a control signal from the main light, and adjusts the target light power in a coordinated manner to adjust the initial light power information to the target light power information.
In some embodiments of the present application, the first detection unit 301 is specifically configured to:
the target object is detected from the target image photographed in real time based on a pre-trained target object recognition model.
In some embodiments of the application, the apparatus is further configured to, prior to detecting the target object from the real-time captured target image based on the pre-trained target object recognition model:
and acquiring an image data set, and preprocessing and dividing the image data set to obtain a target image data set.
Training a preset initial model based on the target image data set to obtain an initial object recognition model.
And optimizing the initial object recognition model based on a preset optimization algorithm to obtain a target object recognition model.
In some embodiments of the present application, the second detection unit 304 is specifically configured to:
and acquiring second position information of the target object and the target lamplight in real time.
Comparing the second position information with the initial position information.
If the second position information is different from the initial position information, the position of the target object is determined to be changed.
In some embodiments of the present application, the target image is an image in a live scene, the target image includes a product object currently taught by the anchor and the anchor, the target object detected from the target image photographed in real time includes a product object, and the target light includes light in the anchor scene.
In the embodiment of the present application, the first detection unit 301 and the first acquisition unit 302 are configured to detect a target object from a target image that is photographed in real time, and acquire initial position information of the target object and target light; a second obtaining unit 303, configured to obtain initial illumination information of a target object and initial lamplight power information of a target lamplight; a second detecting unit 304 and a third obtaining unit 305, configured to obtain target distance information of the target object and the target light if it is detected that the position of the target object changes according to the initial position information; the first determining unit 306 and the first adjusting unit 307 are configured to determine target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, and adjust the initial light power information to the target light power information, thereby realizing detection of the target object in the target image, preventing other objects in the target image from interfering with the target object, improving the accuracy of subsequent detection, and further, through real-time target distance information between the target object and the target light, intelligently and continuously adjusting the target light power parameters, realizing correct exposure of the target object in a manner of adjusting the brightness of the target light, thereby solving the technical problem of image blurring of the shooting device caused by exposure abnormality.
In addition to the above description for the light control method and apparatus, the embodiment of the present application further provides a computer device, which integrates any one of the light control apparatuses provided in the embodiment of the present application, where the computer device includes:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to perform the operations of any of the methods described in any of the light control method embodiments above by the processor.
The embodiment of the application also provides computer equipment which integrates any one of the light control devices provided by the embodiment of the application. As shown in fig. 4, a schematic structural diagram of a computer device according to an embodiment of the present application is shown, specifically:
the computer device may include one or more processors 401 of a processing core, a storage unit 402 of one or more computer readable storage media, a power supply 403, and an input unit 404, among other components. Those skilled in the art will appreciate that the computer device structure shown in FIG. 4 is not limiting of the computer device and may include more or fewer components than shown, or may be combined with certain components, or a different arrangement of components. Wherein:
The processor 401 is a control center of the computer device, connects respective portions of the entire computer device using various interfaces and lines, and performs various functions of the computer device and processes data by running or executing software programs and/or modules stored in the storage unit 402 and calling data stored in the storage unit 402, thereby performing overall monitoring of the computer device. Optionally, processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application program, etc., and the modem processor mainly processes wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 401.
The storage unit 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by running the software programs and modules stored in the storage unit 402. The storage unit 402 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the computer device, etc. In addition, the storage unit 402 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 volatile solid-state storage device. Accordingly, the memory unit 402 may also include a memory controller to provide the processor 401 with access to the memory unit 402.
The computer device further comprises a power supply 403 for supplying power to the various components, preferably the power supply 403 may be logically connected to the processor 401 by a power management system, so that functions of charge, discharge, and power consumption management may be performed by the power management system. The power supply 403 may also include one or more of any of a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
The computer device may also include an input unit 404, which input unit 404 may be used to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
Although not shown, the computer device may further include a display unit or the like, which is not described herein. In particular, in the embodiment of the present application, the processor 401 in the computer device loads executable files corresponding to the processes of one or more application programs into the storage unit 402 according to the following instructions, and the processor 401 executes the application programs stored in the storage unit 402, so as to implement various functions, as follows:
Detecting a target object from a target image shot in real time, and acquiring initial position information of the target object and target lamplight; acquiring initial illumination information of a target object and initial lamplight power information of target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and target lamplight; and determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information to the target lamplight power information.
According to the embodiment of the application, the target object is detected from the target image shot in real time, and the initial position information of the target object and the target lamplight is obtained; acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight; and determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, and adjusting the initial light power information into the target light power information, so that the target object is detected in the target image, other objects in the target image are prevented from interfering with the target object, the subsequent detection accuracy is improved, further, the target light power parameter is intelligently and continuously adjusted through the real-time target distance information of the target object and the target light, and correct exposure of the target object is realized in a mode of adjusting the brightness of the target light, thereby solving the technical problem of image blurring of shooting equipment caused by exposure abnormality.
To this end, embodiments of the present application provide a computer-readable storage medium, which may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like. The computer readable storage medium has stored therein a plurality of instructions that can be loaded by a processor to perform the steps of any of the light control methods provided by the embodiments of the present application. For example, the instructions may perform the steps of:
detecting a target object from a target image shot in real time, and acquiring initial position information of the target object and target lamplight; acquiring initial illumination information of a target object and initial lamplight power information of target lamplight; if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and target lamplight; and determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and the basic parameters of the target lamplight, and adjusting the initial lamplight power information to the target lamplight power information.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above describes in detail a light control method, a device, a computer apparatus and a computer readable storage medium provided by the embodiments of the present application, and specific examples are applied to illustrate the principles and embodiments of the present application, where the above description of the embodiments is only for helping to understand the method and core ideas of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (10)
1. A method of controlling light, the method comprising:
detecting a target object from a target image shot in real time, and acquiring initial position information of the target object and target lamplight;
acquiring initial illumination information of the target object and initial lamplight power information of the target lamplight;
if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight;
determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light, and adjusting the initial light power information into target light power information;
The target object comprises a first target object and a second target object, and the initial position information comprises first initial position information of the first target object and the target lamplight and second initial position information of the second target object and the target lamplight;
and if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight, wherein the step comprises the following steps:
if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight;
and/or the number of the groups of groups,
if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight;
the step of determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light includes:
taking the smaller one of the first distance information and the second distance information as target distance information;
And determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light.
2. The lighting control method according to claim 1, wherein the basic parameters of the target lighting include preset lighting effective power coefficient and lighting angle parameters;
the determining the target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light includes:
and determining target lamplight power information of the target lamplight based on the lamplight effective power coefficient, the lamplight luminous angle parameter, the target distance information and the initial illumination information.
3. The light control method of claim 1, wherein the target light comprises a main light and an auxiliary light, the auxiliary light receives a control signal sent from the main light, and the target light power is adjusted in a linkage manner to adjust the initial light power information to target light power information.
4. The light control method according to claim 1, wherein the detecting the target object from the target image photographed in real time comprises:
The target object is detected from the target image photographed in real time based on a pre-trained target object recognition model.
5. The light control method of claim 4, wherein prior to detecting the target object from the target image captured in real time based on the pre-trained target object recognition model, the method further comprises:
acquiring an image data set, preprocessing and dividing the image data set to obtain a target image data set;
training a preset initial model based on the target image data set to obtain an initial object recognition model;
and optimizing the initial object recognition model based on a preset optimization algorithm to obtain the target object recognition model.
6. The light control method according to claim 1, wherein the detecting of the change in the position of the target object based on the initial position information includes:
acquiring second position information of the target object and target lamplight in real time;
comparing the second position information with the initial position information;
and if the second position information is different from the initial position information, determining that the position of the target object is changed.
7. The light control method according to claim 1, wherein the target image is an image in a live scene, the target image includes a main cast and a product object currently taught by the main cast, the target object detected from the target image photographed in real time includes the product object, and the target light includes light in the live scene.
8. A light control device, the device comprising:
the device comprises a first detection unit and a first acquisition unit, wherein the first detection unit and the first acquisition unit are used for detecting a target object from a target image shot in real time and acquiring initial position information of the target object and target lamplight;
the second acquisition unit is used for acquiring the initial illumination information of the target object and the initial lamplight power information of the target lamplight;
the second detection unit and the third acquisition unit are used for acquiring target distance information of the target object and the target lamplight if the position of the target object is detected to be changed according to the initial position information;
the first determining unit and the first adjusting unit are used for determining target lamplight power information of the target lamplight based on the target distance information, the initial illumination information and basic parameters of the target lamplight, and adjusting the initial lamplight power information into target lamplight power information;
The target object comprises a first target object and a second target object, and the initial position information comprises first initial position information of the first target object and the target lamplight and second initial position information of the second target object and the target lamplight;
and if the position of the target object is detected to be changed according to the initial position information, acquiring target distance information of the target object and the target lamplight, wherein the step comprises the following steps:
if the position of the first target object is detected to change according to the first initial position information, acquiring first distance information of the first target object and the target lamplight;
and/or the number of the groups of groups,
if the position of the second target object is detected to change according to the second initial position information, acquiring second distance information of the second target object and the target lamplight;
the step of determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light includes:
taking the smaller one of the first distance information and the second distance information as target distance information;
And determining target light power information of the target light based on the target distance information, the initial illumination information and the basic parameters of the target light.
9. A computer device, the computer device comprising:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the light control method of any one of claims 1 to 7.
10. A computer-readable storage medium, having stored thereon a computer program, the computer program being loaded by a processor to perform the steps of the light control method of any of claims 1 to 7.
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