WO2021082569A1 - 拍摄画面的补光方法、智能电视及计算机可读存储介质 - Google Patents

拍摄画面的补光方法、智能电视及计算机可读存储介质 Download PDF

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Publication number
WO2021082569A1
WO2021082569A1 PCT/CN2020/105847 CN2020105847W WO2021082569A1 WO 2021082569 A1 WO2021082569 A1 WO 2021082569A1 CN 2020105847 W CN2020105847 W CN 2020105847W WO 2021082569 A1 WO2021082569 A1 WO 2021082569A1
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WIPO (PCT)
Prior art keywords
light
rgb
shooting
area
color lamp
Prior art date
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PCT/CN2020/105847
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English (en)
French (fr)
Inventor
侯亚荣
余明火
洪文生
王德闯
王煊
陈学思
Original Assignee
深圳创维－Rgb电子有限公司
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Application filed by 深圳创维－Rgb电子有限公司 filed Critical 深圳创维－Rgb电子有限公司
Priority to EP20880786.7A priority Critical patent/EP3972237A4/en
Publication of WO2021082569A1 publication Critical patent/WO2021082569A1/zh
Priority to US17/555,746 priority patent/US20220116529A1/en

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Classifications

    • 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
    • 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
    • H04N23/71—Circuitry for evaluating the brightness variation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/4223—Cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

Definitions

  • This application relates to the technical field of smart TVs, and in particular to a method of supplementing light for shooting pictures, smart TVs, and computer-readable storage media.
  • the main purpose of this application is to provide a method for supplementing light for shooting images, a smart TV, and a computer-readable storage medium, aiming to solve the technical problem of a single method of supplementing light and insignificant light supplementation effects in the prior art.
  • the present application provides a method of supplementing light for shooting images, which is applied to a smart TV with a camera, and the backlight unit of the smart TV includes a plurality of RGB three-color lamp beads,
  • the method for supplementing light of the shooting picture includes:
  • the RGB three-color lamp beads in the backlight unit are controlled to emit light according to the to-be-filled light mode, so that the backlight unit can fill light on the shooting image.
  • control instruction is a photographing instruction
  • the photographing image is captured by the camera
  • the image characteristics of the photographing image are acquired, and the acquired image characteristics are matched with the image characteristics in the preset model , Determine the light mode to be supplemented, including:
  • the mode of the light to be supplemented is determined according to the light area to be supplemented and the difference value.
  • controlling each of the RGB three-color lamp beads in the backlight unit to emit light according to the to-be-filled light mode so that the backlight unit can fill light on the shooting image includes:
  • the adjusting the luminous brightness value of the RGB three-color lamp beads in the to-be-filled light area to the brightness threshold according to the to-be-filled light mode includes:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • control instruction is a video instruction
  • the captured image is captured by the camera, and the image feature of the captured image is obtained, and the obtained image feature is matched with the image feature in the preset model , Determine the light mode to be supplemented, including:
  • the target hue corresponding to the shooting image is determined according to the style feature, and the light mode to be supplemented is determined according to the target hue.
  • controlling each of the RGB three-color lamp beads in the backlight unit to emit light according to the to-be-filled light mode so that the backlight unit can fill light on the shooting image includes:
  • the light-emitting hue of each RGB three-color lamp bead in the backlight unit is controlled according to the color matching proportion of the RGB three-color lamp beads.
  • control instruction is a video instruction
  • the captured image is captured by the camera, and the image feature of the captured image is obtained, and the obtained image feature is matched with the image feature in the preset model ,
  • the light mode to be supplemented including:
  • the mode of the light to be supplemented is determined according to the target hue, the light area to be supplemented, and the difference value.
  • controlling each of the RGB three-color lamp beads in the backlight unit to emit light according to the to-be-filled light mode so that the backlight unit can fill light on the shooting image includes:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the dividing the shooting frame into multiple areas includes: dividing the shooting frame into multiple areas evenly according to the number of pixels, or dividing the user area and the background area in the shooting frame Divide into multiple areas respectively.
  • each of the regions corresponds to the position of the RGB three-color lamp beads in the backlight unit in a one-to-one correspondence.
  • the present application also provides a smart TV, the smart TV including: a camera, a backlight unit, a memory, a processor, and a shooting screen stored in the memory and running on the processor
  • the fill light program where:
  • the camera is used to collect a shooting picture in front of the camera
  • the backlight unit is used to supplement light for the shooting picture by emitting light from a plurality of RGB three-color lamp beads;
  • the present application also provides a computer-readable storage medium on which is stored a light-filling program for the shooting screen, and the light-filling program for the shooting screen is executed by the processor to achieve the above-mentioned Fill light method of shooting screen.
  • the camera by receiving a control instruction triggered by a user, the camera is controlled to start according to the control instruction; the camera is used to collect a shooting screen and obtain the image characteristics of the shooting screen; and the obtained image characteristics are combined with a preset model To match the image characteristics of the image characteristics to determine the light to be supplemented mode; according to the light to be supplemented mode, the RGB three-color lamp beads in the backlight unit are controlled to emit light, so that the backlight unit can supplement light for the shooting image.
  • the present application matches the image features acquired by the camera in the shooting screen with the image features in the preset model, determines the light mode to be supplemented, and controls the RGB three-color lights in the backlight after determining the light mode to be supplemented
  • the brightness and color of the beads adjust the brightness and color of the shooting screen, thereby enhancing the display effect of the shooting screen and improving user stickiness.
  • Fig. 1 is a schematic structural diagram of an embodiment of a smart TV of the present application
  • FIG. 2 is a schematic flowchart of a first embodiment of a method for supplementing light for shooting images according to this application;
  • FIG. 3 is a schematic flowchart of a second embodiment of a method for supplementing light for shooting images according to this application;
  • FIG. 4 is a schematic flowchart of a third embodiment of a method for supplementing light for shooting images according to this application;
  • FIG. 5 is a schematic flowchart of a fourth embodiment of a method for supplementing light in a photographed image according to the present application.
  • Fig. 1 is a schematic structural diagram of an embodiment of a smart TV of the present application.
  • the device in the embodiment of the present application may be a smart TV, or a terminal device with a display function, such as a smart phone, a tablet computer, and a portable computer.
  • the embodiment of the present application preferably uses a smart TV as the embodiment device.
  • the smart TV may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005, a camera 1006, and a backlight unit 1007.
  • the communication bus 1002 is used to implement connection and communication between these components.
  • the user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
  • the memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a magnetic disk memory.
  • the memory 1005 may also be a storage device independent of the aforementioned processor 1001.
  • the camera 1006 may be a built-in camera, or an external camera, and is used to collect a shooting picture in front of the camera.
  • the backlight unit 1007 includes a plurality of RGB three-color lamp beads, which are used for supplementing light to the shooting image by emitting light from the plurality of RGB three-color lamp beads.
  • the structure of the smart TV shown in FIG. 1 does not constitute a limitation on the smart TV, and may include more or fewer components than those shown in the figure, or a combination of certain components, or different component arrangements.
  • the memory 1005 which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a light supplement program for shooting images.
  • the network interface 1004 is mainly used to connect to the back-end server and communicate with the back-end server;
  • the user interface 1003 is mainly used to connect to the client (user side) and communicate with the client; and the processing
  • the device 1001 can be used to call the fill light program of the shooting screen stored in the memory 1005, and perform the following operations:
  • the RGB three-color lamp beads in the backlight unit are controlled to emit light according to the to-be-filled light mode, so that the backlight unit can fill light on the shooting image.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the mode of the light to be supplemented is determined according to the light area to be supplemented and the difference value.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the target hue corresponding to the shooting image is determined according to the style feature, and the light mode to be supplemented is determined according to the target hue.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the light-emitting hue of each RGB three-color lamp bead in the backlight unit is controlled according to the color matching proportion of the RGB three-color lamp beads.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the mode of the light to be supplemented is determined according to the target hue, the light area to be supplemented, and the difference value.
  • the processor 1001 may call the fill light program of the shooting frame stored in the memory 1005, and also perform the following operations:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • FIG. 2 is a schematic flowchart of a first embodiment of a method for supplementing light for shooting pictures of this application.
  • the method for supplementing light for shooting pictures is applied to a smart TV with a camera, and the backlight unit of the smart TV includes multiple There are three RGB three-color lamp beads, and the method for supplementing light of the shooting picture includes:
  • Step S10 receiving a control instruction triggered by a user, and controlling the camera to start according to the control instruction.
  • the device in the embodiment of the present application may be a smart TV, or a device such as a smart phone, a tablet computer, and a portable computer.
  • a smart TV has its own camera or an external camera, and the backlight unit of the smart TV includes a plurality of RGB three-color lamp beads.
  • the smart TV can receive the control instruction triggered by the user in real time. When the control instruction is to start the camera to enter the photo or video mode, the smart TV starts the camera according to the control instruction to obtain the shooting picture in front of the camera.
  • the user triggering the control command to start the camera can be realized by sending an infrared remote control code through the remote control, or by sending a voice command or gesture command, or by triggering a physical button or a virtual button on the smart TV, which is not done in this application. Specific restrictions.
  • Step S20 Collect a shooting frame through the camera, and obtain image characteristics of the shooting frame.
  • the captured image is captured in real time through the camera, and the captured image is analyzed to obtain the image characteristics of the captured image.
  • the image feature can be the brightness, hue, user information, or background information of the screen.
  • the image analysis may be to calculate the brightness and hue of each pixel based on the RGB data of each pixel in the captured image, or to identify user information and background information in the captured image through an existing image recognition algorithm.
  • Step S30 Match the acquired image features with the image features in the preset model, and determine the light mode to be supplemented.
  • An image feature matching model is preset in the smart TV.
  • the model saves the brightness threshold of the ideal shooting picture, the color preference of different users, and the color matching corresponding to different backgrounds through training and learning.
  • the smart TV acquires the image features of the shooting screen, it can match the acquired image features of the shooting screen with the image features in the preset model based on one or more of the above image features to determine the shooting The way the screen is to be filled with light.
  • Step S40 controlling each RGB three-color lamp beads in the backlight unit to emit light according to the to-be-filled light mode, so that the backlight unit can fill light on the shooting image.
  • the image display system of the smart TV mainly involves the TV main control unit, MCU (Microcontroller Unit), constant current unit circuit, backlight unit and T-CON board.
  • the TV main control unit is connected to the MCU through the SPI interface, and the MCU controls the constant current.
  • the driving logic of the unit circuit realizes the control of each RGB color lamp of each lamp bead in the backlight unit.
  • the TV main control unit is connected to the T-CON board through a shooting screen transmission interface such as a VBY0 interface, and transmits image information to the T-CON board.
  • the T-CON board is used to convert and display the image information.
  • the TV main control unit decodes the shooting picture, obtains the brightness information, chroma information, etc.
  • the MCU calculates and organizes the brightness information of each frame and transmits it to the MCU through SPI, and the shooting picture is transmitted to the T-CON board.
  • the MCU controls each RGB three-color lamp bead of the backlight unit to emit light according to the brightness information of the current frame.
  • the smart TV After the smart TV acquires the light to be supplemented mode, it controls the RGB three-color lamp beads in the smart TV backlight unit to emit light according to the light to be supplemented mode, so that the backlight unit can supplement light for the shooting picture.
  • the current value and color matching ratio of the red, green, and blue lights in each RGB three-color lamp bead can be determined according to the way to be supplemented, and the current values of the red, green, and blue lights in each RGB three-color lamp bead
  • the color matching ratio controls the driving logic of the constant current unit circuit connected with the RGB three-color lamp beads, so as to realize the control of the brightness and hue of each RGB three-color lamp beads.
  • the automatic adjustment of the shooting screen is realized. Brightness and color, achieve the effect of enhancing the display effect of the shooting picture and enhancing the user's stickiness.
  • FIG. 3 is a schematic flowchart of a second embodiment of the method for supplementing light for shooting images of this application.
  • the receiving The control instruction triggered by the user, after the step of controlling the camera to start according to the control instruction includes:
  • Step S201 Collect a shooting picture in front of the camera through the camera, and divide the shooting picture into multiple regions.
  • Step S202 Calculate the brightness value of each area according to the RGB value of each pixel in each area.
  • the camera captures the shooting screen in front of the camera and divides the shooting screen into multiple areas, such as dividing the shooting screen into multiple areas according to the number of pixels, or dividing the user area in the shooting screen And the background area is divided into multiple areas.
  • each picture area corresponds to the position of the RGB three-color lamp beads in the backlight unit one-to-one. After dividing the area, the RGB value of each pixel in each area is obtained, and the average brightness value of each area is calculated according to the RGB value of each pixel.
  • Step S203 Compare the acquired brightness value of each area with the brightness threshold value in the preset model, and determine whether the brightness value of each area is less than the brightness threshold value.
  • Step S204 If there is no area whose brightness value is less than the brightness threshold value, then directly display the captured image.
  • the brightness threshold can be specifically set according to actual conditions, and this application does not make specific restrictions. Assuming that the number of bits in the RGB data of the shooting screen is 8 bits, that is, the maximum value of the pixel is 256.
  • the brightness threshold is set to half of the maximum brightness, which is 128, then when the brightness value of a certain area is calculated to be less than 128, it is considered The light in this area is dark and needs to be supplemented; when the brightness value of a certain area is calculated to be greater than or equal to 128, it is considered that the light in this area is strong and no supplement is needed.
  • Step S204 if yes, record the light area to be supplemented, and calculate the difference between the brightness value of the light area to be supplemented and the brightness threshold.
  • Step S205 Determine a mode of light to be supplemented according to the area of light to be supplemented and the difference.
  • Step S206 Adjust the luminous brightness values of the RGB three-color lamp beads in the to-be-filled light area to the brightness threshold according to the to-be-filled light mode.
  • each RGB three-color lamp bead in the backlight unit is calculated, and then each RGB three-color in the backlight unit is controlled according to the current value The lamp beads glow.
  • the step S206 includes:
  • Step S210 Determine the current value corresponding to the RGB three-color lamp beads in each to-be-filled light area according to the to-be-filled light mode.
  • Step S211 controlling the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the brightness value of the area to be supplemented and the brightness threshold can be The difference value adjusts the current values of the red, green, and blue lights appropriately so that the brightness value of the area to be supplemented reaches the brightness threshold.
  • the brightness of the area to be supplemented can be adjusted to the maximum value within the allowable range. For example, according to the peak current that each lamp bead can withstand, the current can be increased to be higher than the maximum current in normal operation when the performance is met. For example, the normal working current of the lamp bead is 120mA, and the peak withstand current is 350mA. If the safe lifting current is 200mA, the maximum current that can be boosted when taking pictures can be up to 200mA for the best picture effect.
  • the brightness values of different areas of the shooting image are obtained, and the light area to be supplemented and the difference between the brightness value and the brightness threshold in the light to be supplemented area are determined according to the brightness value, and the RGB three-color lights in each area are controlled.
  • the luminous brightness of the beads so as to achieve a better photo effect.
  • FIG. 4 is a schematic flow chart of the third embodiment of the method for supplementing light for shooting pictures of this application.
  • the control instruction is a video instruction
  • the receiving user triggers
  • the control instruction after the step of controlling the camera to start according to the control instruction, includes:
  • Step S301 Collect a shooting picture in front of the camera through the camera, and obtain user information and background information in each frame of the shooting picture.
  • Step S302 Compare the acquired user information and background information with the user information and background information in the preset model, and determine the style feature corresponding to the shooting picture.
  • the control command is a video command
  • collect the shooting picture in front of the camera through the camera and obtain the user information and background information in each frame of the shooting picture through the image recognition algorithm, such as determining the user identity, user gender, and background decoration style in the shooting picture Wait.
  • the user information and background information are matched with the user information and background information in the preset model. Since the preset model obtains different user identities' different preferences for colors, color preferences for different genders of users, and color matching corresponding to different background decoration styles through training and learning, the obtained user information and background information are compared with the predictions.
  • the user information in the model is compared with the background information to determine the style characteristics corresponding to the shots.
  • Step S303 Determine the target hue corresponding to the shooting image according to the style feature, and determine the light mode to be supplemented according to the target hue.
  • Step S304 controlling the color matching ratio of each RGB three-color lamp beads in the backlight unit according to the to-be-filled light mode.
  • Step S305 controlling the luminous hue of each RGB three-color lamp bead in the backlight unit according to the color matching proportion of the RGB three-color lamp bead.
  • the RGB three-color lamp beads can be controlled to emit different colors of light. For example, when the shooting picture needs blue light compensation, follow the overcurrent measures Correspondingly increase the current value of the blue lamp in the RGB three-color lamp beads in some areas for blue light compensation. If you need to supplement other colors other than red, green, blue, and white, follow the different color ratios of R, G, and B. Adjust some or all of the red, green, and blue brightness values of the lamp beads. At this time, the image displayed is the corresponding backlight combination color, so as to supplement the environment with the corresponding color.
  • FIG. 5 is a schematic flowchart of a fourth embodiment of a method for supplementing light for shooting pictures in this application.
  • the control instruction when the control instruction is a video instruction, the receiving user triggers
  • the control instruction after the step of controlling the camera to start according to the control instruction, includes:
  • Step S401 Collect a shooting picture in front of the camera through the camera, and obtain user information, background information, and brightness values of each area in each frame of the shooting picture.
  • each frame of the shooting picture is divided into multiple areas, for example, the shooting picture is divided into multiple areas evenly according to the number of pixels. It should be noted that each picture area corresponds to the position of the RGB three-color lamp beads in the backlight unit one-to-one. After dividing the area, the RGB value of each pixel in each area is obtained, and the average brightness value of each area is calculated according to the RGB value of each pixel.
  • the user information, background information, and the brightness value of each area are matched with the user information, background information, and brightness value of each area in the preset model. Since the preset model obtains different user identities' different preferences for colors, color preferences for different genders of users, and color matching corresponding to different background decoration styles through training and learning, the obtained user information and background information are compared with the predictions. Suppose that the user information in the model is compared with the background information to determine the style characteristics corresponding to the shots. At the same time, the acquired brightness value of each area is compared with the brightness threshold value in the preset model, and it is determined whether the brightness value of each area is less than the brightness threshold value, thereby determining the area to be supplemented with light.
  • Step S402 Compare the acquired user information and background information with the user information and background information in the preset model, and determine the style feature corresponding to the shooting picture.
  • Step S403 Determine the target hue corresponding to the shooting image according to the style feature, and compare the obtained brightness value of each area with the brightness threshold value in the preset model, and determine whether the brightness value of each area is less than the brightness Threshold.
  • Step S404 if yes, record the light area to be supplemented, and calculate the difference between the brightness value of the light area to be supplemented and the brightness threshold.
  • Step S405 Determine a light mode to be supplemented according to the target hue, the light region to be supplemented, and the difference value.
  • Step S406 Determine the color matching ratio of each RGB three-color lamp beads in the backlight unit and the corresponding current value of the RGB three-color lamp beads in each to-be-filled light area according to the light to be supplemented mode.
  • Step S407 controlling the luminous hue of each RGB three-color lamp bead in the backlight according to the color matching proportion of the RGB three-color lamp bead.
  • the RGB three-color lamp beads can be controlled to emit different colors of light. For example, when the shooting picture needs blue light compensation, follow the overcurrent measures Correspondingly increase the current value of the blue lamp in the RGB three-color lamp beads in some areas for blue light compensation. If you need to supplement other colors other than red, green, blue, and white, follow the different color ratios of R, G, and B. Adjust some or all of the red, green, and blue brightness values of the lamp beads. At this time, the image displayed is the corresponding backlight combination color, so as to supplement the corresponding color for the entire shooting screen.
  • Step S408 controlling the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the current value of each RGB three-color lamp bead in the backlight unit is calculated, and then each RGB three-color in the backlight unit is controlled according to the current value The lamp beads glow.
  • the brightness value of the area to be supplemented and the brightness threshold can be The difference value adjusts the current values of the red, green, and blue lights appropriately so that the brightness value of the area to be supplemented reaches the brightness threshold.
  • step S407 and step S408 can be integrated together for calculation, that is, according to the color proportion of the RGB three-color lamp beads, the light-emitting hue of each RGB three-color lamp bead in the backlight is controlled at the same time.
  • the reason is to adjust the proportion of red, green and blue lights.
  • the essence is also determined by the proportion of the current value of the three color lights. After determining the proportion of the current value of the three color lights, it can be zoomed in or out simultaneously.
  • the current value of the three color lamps can be used to adjust the brightness of the light. Therefore, in this embodiment, after the target hue is determined according to the user information and the background information, the brightness of the area to be supplemented is adjusted to the brightness threshold in synchronization.
  • the luminous hue and brightness of each RGB three-color lamp bead are controlled, so as to achieve better video effects and achieve personalized customization functions.
  • the embodiment of the present application also proposes a computer-readable storage medium, the computer-readable storage medium stores a light-filling program for shooting a picture, and the following operations are implemented when the light-filling program for a shooting picture is executed by a processor:
  • the RGB three-color lamp beads in the backlight unit are controlled to emit light according to the to-be-filled light mode, so that the backlight unit can fill light on the shooting image.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the mode of the light to be supplemented is determined according to the light area to be supplemented and the difference value.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the target hue corresponding to the shooting image is determined according to the style feature, and the light mode to be supplemented is determined according to the target hue.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the light-emitting hue of each RGB three-color lamp bead in the backlight unit is controlled according to the color matching proportion of the RGB three-color lamp beads.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the step of matching the acquired image features with the image features in the preset model to determine the light mode to be supplemented includes:
  • the mode of the light to be supplemented is determined according to the target hue, the light area to be supplemented, and the difference value.
  • the following operations are also implemented when the light supplement program of the shooting frame is executed by the processor:
  • the luminous brightness value of each RGB three-color lamp bead in the to-be-filled light area is controlled to the brightness threshold according to the corresponding current value after the adjustment of the RGB three-color lamp bead.
  • the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , Magnetic disks, optical disks), including several instructions to make a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present application.
  • a terminal device which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本申请公开了一种拍摄画面的补光方法，所述拍摄画面的补光方法应用于带有摄像头的智能电视，所述智能电视的背光单元包括多个RGB三色灯珠，所述拍摄画面的补光方法包括：接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。本申请还公开了一种智能电视以及计算机可读存储介质。

Description

拍摄画面的补光方法、智能电视及计算机可读存储介质
相关申请的交叉引用
本申请要求于2019年11月1日提交中国专利局、申请号为201911063435.X、申请名称为“拍摄画面的补光方法、智能电视及计算机可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智能电视技术领域，尤其涉及一种拍摄画面的补光方法、智能电视及计算机可读存储介质。
 背景技术
将摄像头应用于智能电视，并基于此对电视AI能力等进行提升已经成为电视厂商丰富电视应用、提升电视用户粘度的一种方式，如开发在线视频互联、自拍等功能。但目前这种智能电视由于受用户使用环境的限制，常常在使用拍照和视频功能时呈现的图像效果并不理想，所以需要通过电视背光给用户使用环境进行补光，然而由于现有智能电视的背光为白光源，补光方式较为单一，其补光效果也不明显。
因此，为提升智能电视的拍照和视频的图像呈现效果，实现电视的智能补光功能成为亟待解决的技术问题。
 技术解决方案
本申请的主要目的在于提供一种拍摄画面的补光方法、智能电视及计算机可读存储介质，旨在解决现有技术中补光方式单一，补光效果不明显的技术问题。
为实现上述目的，本申请提供一种拍摄画面的补光方法，所述拍摄画面的补光方法应用于带有摄像头的智能电视，所述智能电视的背光单元包括多个RGB三色灯珠，所述拍摄画面的补光方法包括：
接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；
通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；
将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；以及
根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。
在一实施例中，所述控制指令为拍照指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，包括：
通过所述摄像头采集所述摄像头前方的拍摄画面，并将所述拍摄画面划分成多个区域；
根据各个区域中每个像数的RGB值，计算各个区域的亮度值；
将获取到的各区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；以及
根据所述待补光区域和所述差值确定待补光方式。
在一实施例中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，所述根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值，包括：
根据所述待补光方式确定各待补光区域中RGB三色灯珠调整后对应的电流值；以及
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，所述控制指令为视频指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，包括：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息和背景信息；
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；以及
根据所述风格特征确定所述拍摄画面对应的目标色调，根据所述目标色调确定待补光方式。
在一实施例中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
根据所述待补光方式控制所述背光单元中各RGB三色灯珠的配色占比；以及
根据所述RGB三色灯珠的配色占比控制所述背光单元中各RGB三色灯珠的发光色调。
在一实施例中，所述控制指令为视频指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，还包括：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息、背景信息以及各个区域的亮度值；
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
根据所述风格特征确定所述拍摄画面对应的目标色调，并将获取到的各个区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；以及
根据所述目标色调、所述待补光区域以及所述差值确定待补光方式。
在一实施例中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
根据所述待补光方式确定所述背光单元中各RGB三色灯珠的配色占比以及各待补光区域中RGB三色灯珠调整后对应的电流值；
根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调；以及
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，所述将所述拍摄画面划分成多个区域，包括：将所述拍摄画面根据像素点多少平均划分为多个区域，或者将所述拍摄画面中的用户区域以及背景区域分别划分为多个区域。
在一实施例中，每个所述区域与所述背光单元中的RGB三色灯珠的位置一一对应。
此外，为实现上述目的，本申请还提供一种智能电视，所述智能电视包括：摄像头、背光单元、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的拍摄画面的补光程序，其中：
所述摄像头，用于采集所述摄像头前方的拍摄画面；
所述背光单元，用于通过多个RGB三色灯珠发光给所述拍摄画面进行补光；
所述拍摄画面的补光程序被所述处理器执行时实现如上任一项所述拍摄画面的补光方法。
此外，为实现上述目的，本申请还提供一种计算机可读存储介质，其上存储有拍摄画面的补光程序，所述拍摄画面的补光程序被处理器执行时实现如上任一项所述拍摄画面的补光方法。
本申请通过接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。通过上述实施方式，本申请将摄像头获取到拍摄画面中的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，在确定待补光方式后，控制背光中各RGB三色灯珠的亮度和颜色调整拍摄画面的亮度和颜色，从而提升拍摄画面的显示效果，提升用户粘性。
 附图说明
图1是本申请智能电视的一实施例的结构示意图；
图2为本申请拍摄画面的补光方法的第一实施例的流程示意图；
图3为本申请拍摄画面的补光方法的第二实施例的流程示意图；
图4为本申请拍摄画面的补光方法的第三实施例的流程示意图；
图5为本申请拍摄画面的补光方法的第四实施例的流程示意图。
本申请的实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
如图1所示，图1是本申请智能电视的一实施例的结构示意图。
本申请实施例装置可以是智能电视，也可以是智能手机、平板电脑、便携计算机等具有显示功能的终端设备。本申请实施例优选智能电视作为实施例装置。
如图1所示，该智能电视可以包括：处理器1001，例如CPU，通信总线1002，用户接口1003，网络接口1004，存储器1005，摄像头1006，背光单元1007。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏（Display）、输入单元比如键盘（Keyboard），可选的用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口（如WI-FI接口）。存储器1005可以是高速RAM存储器，也可以是稳定的存储器（non-volatile memory），例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。摄像头1006可以为自带摄像头，也可以为外接摄像头，用于采集所述摄像头前方的拍摄画面。背光单元1007包括多个RGB三色灯珠，用于通过多个RGB三色灯珠发光给所述拍摄画面进行补光。
本领域技术人员可以理解，图1中示出的智能电视结构并不构成对智能电视的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种计算机存储介质的存储器1005中可以包括操作***、网络通信模块、用户接口模块以及拍摄画面的补光程序。
在图1所示的智能电视中，网络接口1004主要用于连接后台服务器，与后台服务器进行数据通信；用户接口1003主要用于连接客户端（用户端），与客户端进行数据通信；而处理器1001可以用于调用存储器1005中存储的拍摄画面的补光程序，并执行以下操作：
接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；
通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；
将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；
根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并将所述拍摄画面划分成多个区域；
根据各个区域中每个像数的RGB值，计算各个区域的亮度值；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的各区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；
根据所述待补光区域和所述差值确定待补光方式。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
根据所述待补光方式确定各待补光区域中RGB三色灯珠调整后对应的电流值；
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息和背景信息；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
根据所述风格特征确定所述拍摄画面对应的目标色调，根据所述目标色调确定待补光方式。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
根据所述待补光方式控制所述背光单元中各RGB三色灯珠的配色占比；
根据所述RGB三色灯珠的配色占比控制所述背光单元中各RGB三色灯珠的发光色调。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息、背景信息以及各个区域的亮度值；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
根据所述风格特征确定所述拍摄画面对应的目标色调，并将获取到的各个区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；
根据所述目标色调、所述待补光区域以及所述差值确定待补光方式。
在一实施例中，处理器1001可以调用存储器1005中存储的拍摄画面的补光程序，还执行以下操作：
根据所述待补光方式确定所述背光单元中各RGB三色灯珠的配色占比以及各待补光区域中RGB三色灯珠调整后对应的电流值；
根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调；
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
本申请智能电视的具体实施例与下述拍摄画面的补光方法各实施例基本相同，在此不作赘述。
参照图2，图2为本申请拍摄画面的补光方法的第一实施例的流程示意图，所述拍摄画面的补光方法应用于带有摄像头的智能电视，所述智能电视的背光单元包括多个RGB三色灯珠，所述拍摄画面的补光方法包括：
步骤S10，接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动。
本申请实施例装置可以是智能电视，也可以是智能手机、平板电脑、便携计算机等装置。为方便说明，后续实施例均以智能电视为例。该智能电视自带摄像头或者外接有摄像头，且该智能电视的背光单元包括多个RGB三色灯珠。智能电视可以实时接收用户触发的控制指令，当该控制指令为启动摄像头进入拍照或者视频模式时，智能电视根据该控制指令启动摄像头获取摄像头前方的拍摄画面。需要说明的是，用户触发启动摄像头的控制指令可以通过遥控器发送红外遥控码，也可以通过发送语音指令或者手势指令，或者通过触发智能电视上的物理按键或者虚拟按键来实现，本申请不做具体限定。
步骤S20，通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征。
启动摄像头后，通过摄像头实时采集拍摄画面，并对采集到的拍摄画面进行图像分析，获取该拍摄画面的图像特征。该图像特征可以为画面的亮度、色调、用户信息或者背景信息等。具体地，图像分析可以是根据拍摄画面中的每个像素的RGB数据计算每个像素的亮度和色调，也可以是通过现有的图像识别算法识别出拍摄画面中的用户信息和背景信息等。
步骤S30，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式。
在智能电视中预设有图像特征匹配模型，该模型通过训练学习保存有理想拍摄画面的亮度阈值、不同用户的色调喜好以及不同背景对应的色调搭配等。当智能电视获取到拍摄画面的图像特征后，可以基于上述图像特征中的一种或者多种的结合将获取到的拍摄画面的图像特征与预设模型中的图像特征进行匹配，以确定该拍摄画面的待补光方式。
步骤S40，根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。
在智能电视的图像显示***中主要涉及到TV主控单元、MCU（Microcontroller Unit）、恒流单元电路、背光单元以及T-CON板，TV主控单元通过SPI接口与MCU连接，MCU控制恒流单元电路的驱动逻辑实现对背光单元中的每个灯珠的各个RGB颜色灯进行控制。另一方面，TV主控单元通过拍摄画面传输接口如VBY0接口与T-CON板连接，将图像信息传输给T-CON板，T-CON板用于对图像信息进行转换处理后进行显示。正常工作时，TV主控单元对拍摄画面进行解码，获取里面的亮度信息，色度信息等，对每帧的亮度信息经过运算整理后通过SPI方式传输给MCU，拍摄画面传输给T-CON板，在同步信号的同步下，当显示屏显示某帧画面时MCU根据当前帧的亮度信息，控制背光单元每个RGB三色灯珠发光。
智能电视获取到待补光方式后，根据该待补光方式控制智能电视背光单元中各RGB三色灯珠发光，以供背光单元对该拍摄画面进行补光。具体地，可以根据待补光方式确定各RGB三色灯珠中红灯、绿灯以及蓝灯的电流值以及配色占比，根据各RGB三色灯珠中红灯、绿灯以及蓝灯的电流值以及配色占比控制与该RGB三色灯珠相连的恒流单元电路的驱动逻辑，从而实现对各RGB三色灯珠亮度和色调的控制。
在本实施例中通过获取拍摄画面的图像特征，并根据图像特征确定待补光方式，再根据待补光方式控制背光单元中各RGB三色灯珠的亮度和颜色，实现自动调整拍摄画面的亮度和颜色，达到提升拍摄画面的显示效果，提升用户粘性的效果。
进一步的，参照图3，图3为本申请拍摄画面的补光方法的第二实施例的流程示意图，基于上述图2所示的实施例，当所述控制指令为拍照指令时，所述接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动步骤之后，包括：
步骤S201，通过所述摄像头采集所述摄像头前方的拍摄画面，并将所述拍摄画面划分成多个区域。
步骤S202，根据各个区域中每个像素的RGB值，计算各个区域的亮度值。
当控制指令为拍照指令时，通过摄像头采集摄像头前方的拍摄画面，并将拍摄画面划分成多个区域，如将拍摄画面根据像素点多少平均划分为多个区域，或者将拍摄画面中的用户区域以及背景区域分别划分为多个区域。需要说明的是，每个画面区域与背光单元中的RGB三色灯珠的位置一一对应。在划分好区域后，获取每个区域中每个像素的RGB值，并根据每个像素的RGB值计算出各个区域的平均亮度值。
步骤S203，将获取到的各区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值。
将获取到的各区域的亮度值分别与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值，若存在某区域的的亮度值小于所述亮度阈值，则执行步骤S204；若不存在某区域的的亮度值小于所述亮度阈值，则直接将该拍摄画面进行显示。需要说明的是，该亮度阈值可以根据实际情况具体设置，本申请不做具体限制。假设拍摄画面的RGB 数据的比特数为8位，即像素的最大值为256，当亮度阈值设置为最大亮度的一半即128时，那么当计算出某区域的亮度值低于128时，则认为该区域的光线较暗需要进行补光；当计算出某区域的亮度值大于或者等于128时，则认为该区域的光线较强不需要进行补光。
步骤S204，若是，则记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值。
步骤S205，根据所述待补光区域和所述差值确定待补光方式。
步骤S206，根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值。
在确定待补光区域以及待补光区域的亮度值与亮度阈值的差值后，计算背光单元中各RGB三色灯珠发光的电流值，再根据该电流值控制背光单元中各RGB三色灯珠发光。
具体地，所述步骤S206包括：
步骤S210，根据所述待补光方式确定各待补光区域中RGB三色灯珠调整后对应的电流值。
步骤S211，根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
根据模型中训练学习得到的RGB三色灯珠中红灯、绿灯和蓝灯的电流值与红灯、绿灯和蓝灯的亮度的对应关系，可以根据待补光区域的亮度值与亮度阈值的差值适当调整红灯、绿灯和蓝灯的电流值，从而使得待补光区域的亮度值达到亮度阈值。
作为另一种实施方式，由于在拍照时需要有较强的白光作为闪光，故可以将待补光区域的亮度调大到允许范围内的最大值。例如，根据每个灯珠可以承受的峰值电流，在满足性能的情况下，可将电流提升到高于正常工作的最大电流，如灯珠正常工作电流为120mA，峰值承受电流为350mA，验证的安全提升电流为200mA，则在拍照时可以提升的电流最大可达到200mA，以使拍照效果最佳。
在本实施例中通过获取拍摄画面的不同区域的亮度值，并根据该亮度值确定待补光区域以及待补光区域中亮度值与亮度阈值的差值，进而控制各个区域中RGB三色灯珠的发光亮度，从而实现更好的拍照效果。
参照图4，图4为本申请拍摄画面的补光方法的第三实施例的流程示意图，基于上述图2所示的实施例，当所述控制指令为视频指令时，所述接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动步骤之后，包括：
步骤S301，通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息和背景信息。
步骤S302，将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征。
当控制指令为视频指令时，通过摄像头采集该摄像头前方的拍摄画面，通过图像识别算法获取每帧拍摄画面中的用户信息和背景信息，例如确定拍摄画面中的用户身份、用户性别、背景装修风格等。在获取到用户信息和背景信息后，将该用户信息和背景信息与预设模型中的用户信息和背景信息进行匹配。由于预设模型中通过训练学习得到了不同用户身份对于颜色的不同喜好、针对用户的不同性别的颜色偏好以及不同背景装修风格对应的颜色搭配等，故将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定出拍摄画面对应的风格特征。
步骤S303，根据所述风格特征确定所述拍摄画面对应的目标色调，根据所述目标色调确定待补光方式。
步骤S304，根据所述待补光方式控制所述背光单元中各RGB三色灯珠的配色占比。
步骤S305，根据所述RGB三色灯珠的配色占比控制所述背光单元中各RGB三色灯珠的发光色调。
基于RGB三色灯珠的发光原理，根据R、G、B不同的配色占比，可以控制RGB三色灯珠发出不同颜色的光，例如当拍摄画面需要蓝光进行补偿时，则按照过流措施相应提升部分区域的RGB三色灯珠中的蓝灯的电流值进行蓝光补偿，如果需要补充红、绿、蓝、白以外的其他颜色，则按照R、G、B不同的配色占比，相应的调整部分或全部灯珠的红、绿、蓝亮度值，此时图像显示出来的即为对应的背光灯组合颜色，从而给环境补充相应颜色。
本实施例中通过获取拍摄画面中的用户信息和背景信息，并根据用户信息和背景信息确定拍摄画面对应的目标色调，进而控制各RGB三色灯珠的发光色调，从而实现更好的视频效果，达到个性化定制功能。
参照图5，图5为本申请拍摄画面的补光方法的第四实施例的流程示意图，基于上述图2所示的实施例，当所述控制指令为视频指令时，所述接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动步骤之后，包括：
步骤S401，通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息、背景信息以及各个区域的亮度值。
当控制指令为视频指令时，通过摄像头采集该摄像头前方的拍摄画面，通过图像识别算法获取每帧拍摄画面中的用户信息和背景信息，例如确定拍摄画面中的用户身份、用户性别、背景装修风格等。同时将每帧拍摄画面划分成多个区域，如将拍摄画面根据像素点多少平均划分为多个区域。需要说明的是，每个画面区域与背光单元中的RGB三色灯珠的位置一一对应。在划分好区域后，获取每个区域中每个像素的RGB值，并根据每个像素的RGB值计算出各个区域的平均亮度值。
在获取到用户信息、背景信息以及各个区域的亮度值后，将该用户信息、背景信息以及各个区域的亮度值与预设模型中的用户信息、背景信息以及各个区域的亮度值进行匹配。由于预设模型中通过训练学习得到了不同用户身份对于颜色的不同喜好、针对用户的不同性别的颜色偏好以及不同背景装修风格对应的颜色搭配等，故将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定出拍摄画面对应的风格特征。同时将获取到的各区域的亮度值分别与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值，由此确定待补光区域。
步骤S402，将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征。
步骤S403，根据所述风格特征确定所述拍摄画面对应的目标色调，并将获取到的各个区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值。
步骤S404，若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值。
步骤S405，根据所述目标色调、所述待补光区域以及所述差值确定待补光方式。
步骤S406，根据所述待补光方式确定所述背光单元中各RGB三色灯珠的配色占比以及各待补光区域中RGB三色灯珠调整后对应的电流值。
步骤S407，根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调。
基于RGB三色灯珠的发光原理，根据R、G、B不同的配色占比，可以控制RGB三色灯珠发出不同颜色的光，例如当拍摄画面需要蓝光进行补偿时，则按照过流措施相应提升部分区域的RGB三色灯珠中的蓝灯的电流值进行蓝光补偿，如果需要补充红、绿、蓝、白以外的其他颜色，则按照R、G、B不同的配色占比，相应的调整部分或全部灯珠的红、绿、蓝亮度值，此时图像显示出来的即为对应的背光灯组合颜色，从而给整个拍摄画面补充相应颜色。
步骤S408，根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
在确定待补光区域以及待补光区域的亮度值与亮度阈值的差值后，计算背光单元中各RGB三色灯珠发光的电流值，再根据该电流值控制背光单元中各RGB三色灯珠发光。根据模型中训练学习得到的RGB三色灯珠中红灯、绿灯和蓝灯的电流值与红灯、绿灯和蓝灯的亮度的对应关系，可以根据待补光区域的亮度值与亮度阈值的差值适当调整红灯、绿灯和蓝灯的电流值，从而使得待补光区域的亮度值达到亮度阈值。
当然，作为另一种实施方式，可将步骤S407和步骤S408综合一起进行计算，即根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调的同时，根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。原因为调整红灯、绿灯和蓝灯的配色占比其实质也是根据三种颜色灯的电流值大小占比关系决定，在确定三种颜色灯的电流值大小占比关系后可同步放大或缩小三种颜色灯的电流值来调整其发光亮度。因此，在该实施例中在根据用户信息和背景信息确定目标色调后，对待补光区域的亮度同步调整至亮度阈值。
本实施例中通过获取拍摄画面中的用户信息、背景信息以及各个区域的亮度值，并根据用户信息、背景信息以及各个区域的亮度值确定拍摄画面对应的目标色调和待补光区域的亮度，进而控制各RGB三色灯珠的发光色调和亮度，从而实现更好的视频效果，达到个性化定制功能。
此外，本申请实施例还提出一种计算机可读存储介质，所述计算机可读存储介质上存储有拍摄画面的补光程序，所述拍摄画面的补光程序被处理器执行时实现如下操作：
接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；
通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；
将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；
根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并将所述拍摄画面划分成多个区域；
根据各个区域中每个像数的RGB值，计算各个区域的亮度值；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的各区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；
根据所述待补光区域和所述差值确定待补光方式。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
根据所述待补光方式确定各待补光区域中RGB三色灯珠调整后对应的电流值；
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息和背景信息；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
根据所述风格特征确定所述拍摄画面对应的目标色调，根据所述目标色调确定待补光方式。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
根据所述待补光方式控制所述背光单元中各RGB三色灯珠的配色占比；
根据所述RGB三色灯珠的配色占比控制所述背光单元中各RGB三色灯珠的发光色调。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息、背景信息以及各个区域的亮度值；
所述将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式的步骤，包括：
将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
根据所述风格特征确定所述拍摄画面对应的目标色调，并将获取到的各个区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；
根据所述目标色调、所述待补光区域以及所述差值确定待补光方式。
在一实施例中，所述拍摄画面的补光程序被处理器执行时还实现如下操作：
根据所述待补光方式确定所述背光单元中各RGB三色灯珠的配色占比以及各待补光区域中RGB三色灯珠调整后对应的电流值；
根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调；
根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
本申请计算机可读存储介质的具体实施例与上述拍摄画面的补光方法方法各实施例基本相同，在此不作赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者***不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者***所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者***中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (12)

  1. 一种拍摄画面的补光方法，其中，所述拍摄画面的补光方法应用于带有摄像头的智能电视，所述智能电视的背光单元包括多个RGB三色灯珠，所述拍摄画面的补光方法包括：
    接收用户触发的控制指令，根据所述控制指令控制所述摄像头启动；
    通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；
    将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式；以及
    根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光。
  2. 如权利要求1所述的拍摄画面的补光方法，其中，所述控制指令为拍照指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征；将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，包括：
    通过所述摄像头采集所述摄像头前方的拍摄画面，并将所述拍摄画面划分成多个区域；
    根据各个区域中每个像数的RGB值，计算各个区域的亮度值；
    将获取到的各区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
    若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；以及
    根据所述待补光区域和所述差值确定待补光方式。
  3. 如权利要求2所述的拍摄画面的补光方法，其中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
    根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值。
  4. 如权利要求3所述的拍摄画面的补光方法，其中，所述根据所述待补光方式调整所述待补光区域中的RGB三色灯珠的发光亮度值至所述亮度阈值，包括：
    根据所述待补光方式确定各待补光区域中RGB三色灯珠调整后对应的电流值；以及
    根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
  5. 如权利要求1所述的拍摄画面的补光方法，其中，所述控制指令为视频指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，包括：
    通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息和背景信息；
    将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；以及
    根据所述风格特征确定所述拍摄画面对应的目标色调，根据所述目标色调确定待补光方式。
  6. 如权利要求5所述的拍摄画面的补光方法，其中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
    根据所述待补光方式控制所述背光单元中各RGB三色灯珠的配色占比；
    根据所述RGB三色灯珠的配色占比控制所述背光单元中各RGB三色灯珠的发光色调。
  7. 如权利要求5所述的拍摄画面的补光方法，其中，所述控制指令为视频指令，所述通过所述摄像头采集拍摄画面，并获取所述拍摄画面的图像特征，将获取到的图像特征与预设模型中的图像特征进行匹配，确定待补光方式，还包括：
    通过所述摄像头采集所述摄像头前方的拍摄画面，并获取每帧拍摄画面中的用户信息、背景信息以及各个区域的亮度值；
    将获取到的用户信息和背景信息与预设模型中的用户信息和背景信息进行比较，确定所述拍摄画面对应的风格特征；
    根据所述风格特征确定所述拍摄画面对应的目标色调，并将获取到的各个区域的亮度值与预设模型中的亮度阈值进行比较，判断各区域的亮度值是否小于所述亮度阈值；
    若是，记录待补光区域，并计算所述待补光区域的亮度值与所述亮度阈值的差值；以及
    根据所述目标色调、所述待补光区域以及所述差值确定待补光方式。
  8. 如权利要求7所述的拍摄画面的补光方法，其中，所述根据所述待补光方式控制所述背光单元中各RGB三色灯珠发光，以供所述背光单元对所述拍摄画面进行补光，包括：
    根据所述待补光方式确定所述背光单元中各RGB三色灯珠的配色占比以及各待补光区域中RGB三色灯珠调整后对应的电流值；
    根据所述RGB三色灯珠的配色占比控制所述背光中各RGB三色灯珠的发光色调；以及
    根据所述RGB三色灯珠调整后对应的电流值控制所述待补光区域中各RGB三色灯珠的发光亮度值至所述亮度阈值。
  9. 如权利要求2所述的智能电视，其中，所述将所述拍摄画面划分成多个区域，包括：将所述拍摄画面根据像素点多少平均划分为多个区域，或者将所述拍摄画面中的用户区域以及背景区域分别划分为多个区域。
  10. 如权利要求9所述的智能电视，其中，每个所述区域与所述背光单元中的RGB三色灯珠的位置一一对应。
  11. 一种智能电视，其中，所述智能电视包括：摄像头、背光单元、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的拍摄画面的补光程序，其中：
    所述摄像头，用于采集所述摄像头前方的拍摄画面；
    所述背光单元，用于通过多个RGB三色灯珠发光给所述拍摄画面进行补光；
    所述拍摄画面的补光程序被所述处理器执行时实现如权利要求1至11中任一项所述拍摄画面的补光方法的步骤。
  12. 一种计算机可读存储介质，其上存储有拍摄画面的补光程序，其特征在于，所述拍摄画面的补光程序被处理器执行时实现如权利要求1至11中任一项所述拍摄画面的补光方法的步骤。
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