WO2022174651A1 - 投影设备控制方法、装置、介质及电子设备 - Google Patents

投影设备控制方法、装置、介质及电子设备 Download PDF

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WO2022174651A1
WO2022174651A1 PCT/CN2021/135866 CN2021135866W WO2022174651A1 WO 2022174651 A1 WO2022174651 A1 WO 2022174651A1 CN 2021135866 W CN2021135866 W CN 2021135866W WO 2022174651 A1 WO2022174651 A1 WO 2022174651A1
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ire
color
light
value
color value
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PCT/CN2021/135866
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English (en)
French (fr)
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吕思成
庞天凯
张聪
胡震宇
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深圳市火乐科技发展有限公司
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Publication of WO2022174651A1 publication Critical patent/WO2022174651A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179Video signal processing therefor
    • H04N9/3182Colour adjustment, e.g. white balance, shading or gamut

Definitions

  • the present disclosure relates to the technical field of projection equipment, and in particular, to a projection equipment control method, apparatus, medium, and electronic equipment.
  • the color temperature of the projection equipment is very different from the factory due to various factors such as light source and optical path. Even the same batch of projection equipment has a very different color temperature. Therefore, Even if the color temperature of the projection equipment is adjusted before leaving the factory, the color temperature is inconsistent from the factory to the user's hand. It is unrealistic to manually adjust each projection device after the factory is sold. Therefore, an efficient automatic adjustment method of color temperature is required to improve the user's viewing experience.
  • the present disclosure provides a projection device control method, device, medium and electronic device.
  • the present disclosure provides a method for controlling a projection device, wherein the projection light source of the projection device includes red light, green light, blue light and additional light for improving the projection brightness of the projection device, so
  • the methods described include:
  • the gain of the RGB channel is adjusted.
  • the color lookup table is constructed by:
  • the color lookup table is constructed based on at least each of the first color values.
  • the present disclosure provides a control device for a projection device, the projection light source of the projection device includes red light, green light, blue light and additional light for improving the projection brightness of the projection device;
  • the device includes:
  • an acquisition module configured to acquire the target chromaticity coordinates of the projection light source in response to receiving the projection instruction
  • a determining module configured to determine the gain coefficient of the RGB channel in the projection device according to the target chromaticity coordinates obtained by the obtaining module and a pre-built color look-up table;
  • An adjustment module configured to adjust the gain of the RGB channel according to the gain coefficient determined by the determination module.
  • the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of the method provided in the first aspect of the present disclosure.
  • the present disclosure provides an electronic device, comprising:
  • a processor configured to execute the computer program in the memory, to implement the steps of the method provided by the first aspect of the present disclosure.
  • the target chromaticity coordinates of the projection light source of the projection device are obtained, wherein the projection light source includes red light, green light, blue light and additional light for improving the projection brightness of the projection device; Then, the gain coefficient of the RGB channel in the projection device is determined according to the target chromaticity coordinates and the pre-built color look-up table; finally, the gain of the RGB channel is adjusted according to the gain coefficient.
  • the gain coefficient of the RGB channel can be quickly and directly determined, so that the gain of the RGB channel can be automatically adjusted according to the gain coefficient, and the color temperature of the projection device can be automatically adjusted at one time. The effect in place improves the user's visual experience.
  • FIG. 1 is a flowchart illustrating a method for controlling a projection device according to an exemplary embodiment.
  • Fig. 2 is a flowchart showing a method for constructing a color lookup table according to an exemplary embodiment.
  • Fig. 3 is a flowchart of a method for constructing a color lookup table according to at least each first color value, according to an exemplary embodiment.
  • Fig. 4 is a schematic diagram showing the lighting sequence of each lamp when a projection device projects red light, green light, blue light, and white light according to an exemplary embodiment.
  • Fig. 5 is a schematic diagram showing the lighting sequence of each lamp when a projection device projects red light, green light, blue light, and white light according to another exemplary embodiment.
  • Fig. 6 is a schematic diagram showing the lighting sequence of each lamp when a projection device projects red light, green light, blue light, and white light according to another exemplary embodiment.
  • Fig. 7 is a schematic diagram showing the lighting sequence of each lamp when a projection device projects red light, green light, blue light and white light according to another exemplary embodiment.
  • Fig. 8 is a block diagram of a projection device control apparatus according to an exemplary embodiment.
  • Fig. 9 is a block diagram of an apparatus for constructing a color lookup table according to an exemplary embodiment.
  • Fig. 10 is a block diagram of an electronic device according to an exemplary embodiment.
  • Fig. 11 is a block diagram of an electronic device according to an exemplary embodiment.
  • FIG. 1 is a flowchart illustrating a method for controlling a projection device according to an exemplary embodiment. As shown in FIG. 1 , the method includes S101 to S103.
  • the projection device control method can be applied to the projection device, and can also be applied to a terminal (eg, server, smartphone, tablet computer, etc.) connected to the projection device.
  • a terminal eg, server, smartphone, tablet computer, etc.
  • the projection command can be triggered through the projection button on the projection device, or the projection command can be triggered through a remote control or a smart terminal (eg, a smartphone) communicatively connected to the projection device.
  • the projection light source of the projection device includes red light, green light, blue light and additional light for improving the projection brightness of the projection device.
  • the additional light may be, for example, yellow light, that is, the projection light source of the projection device not only includes red light, green light, and blue light, but also includes yellow light.
  • the target chromaticity coordinate can be the value currently set by the user.
  • the user can set the above-mentioned target chromaticity coordinate through the chromaticity coordinate adjustment button on the projection device, or through a remote control or a communication connection with the projection device.
  • the above target chromaticity coordinates are set by the smart terminal (for example, a smart phone); if the value currently set by the user is not obtained, the last value set by the user can be determined as the target chromaticity coordinates.
  • the gain coefficients of the RGB channels in the projection device are determined according to the target chromaticity coordinates and the pre-built color look-up table.
  • RGB channels include red (R) channel, green (G) channel, and blue (B) channel, so that the gain coefficient of red (R) channel, green (G) channel can be determined according to the color value and the gain factor of the blue (B) channel.
  • a color lookup table can be constructed based on these characteristics. (Lookup Table, LuT), and then determine the gain coefficient of the RGB channel in the projection device according to the target chromaticity coordinates and the color lookup table.
  • the gain of the RGB channel is adjusted according to the gain coefficient.
  • the projection after determining the gain coefficient of the red (R) channel, the gain coefficient of the green (G) channel, and the gain coefficient of the blue (B) channel through S102, the projection can be adjusted according to the gain coefficient of the red (R) channel
  • the gain of the red (R) channel in the device adjust the gain of the green (G) channel in the projection device according to the gain coefficient of the green (G) channel, and adjust the blue (B) of the projection device according to the gain coefficient of the blue (B) channel channel gain.
  • the target chromaticity coordinates of the projection light source of the projection device are obtained, wherein the projection light source includes red light, green light, blue light and additional light for improving the projection brightness of the projection device; Then, the gain coefficient of the RGB channel in the projection device is determined according to the target chromaticity coordinates and the pre-built color look-up table; finally, the gain of the RGB channel is adjusted according to the gain coefficient.
  • the gain coefficient of the RGB channel can be quickly and directly determined, so that the gain of the RGB channel can be automatically adjusted according to the gain coefficient, and the color temperature of the projection device can be automatically adjusted at one time. The effect in place improves the user's visual experience.
  • the projection device is controlled to project red light, green light, blue light, and white light in any order, and obtains the first color value of the light projected by the projection device each time of projection.
  • the first color value may be any of chromaticity coordinates and luminance in the XYZ color space, RGB data, and XYZ data in the XYZ color space.
  • the XYZ color space is the XYZ color space defined by the International Commission on Illumination (CIE) in 1931, also known as CIE1931.
  • the light projected by the projection device during each projection can be received through the sensing module, so as to obtain the first color value of the light projected each time. After that, the projection device can obtain each first color value.
  • the sensing module may be a color temperature sensor, a camera, an illuminance meter, an integrating sphere, etc., and the sensing module may be connected to the projection device through a wireless network or a wired network.
  • the projection device may be red light, green light, blue light, and white light in any order, as long as the corresponding first color value can be obtained.
  • the projection device can be controlled to project red light, green light, blue light, and white light in sequence, and the first color value of each projected light can be obtained; for another example, the projection device can be controlled to project white light, red light, blue light, and green light in sequence. light, and get the first color value of the light cast each time.
  • a color lookup table is constructed at least according to each first color value.
  • the first color value obtained in the above S201 is chromaticity coordinates and luminance, or RGB data, it can be converted into XYZ data first, and then color is performed according to it. Lookup table construction.
  • chromaticity coordinates (x, y) and luminance L can be converted to XYZ data by the following equation (1):
  • RGB data can be converted to XYZ data by the following equation (2):
  • the projection light source of the projection device includes not only red light, green light, and blue light, but also additional light. Therefore, when the projection device projects red light, the projected light source not only contains red light, but may also contain additional light. Additional lights may also be on; similarly, when a projection device projects green light, the light source it projects may contain not only green light, but additional light, i.e., when the projection device projects green light, not only the green light used to project green light will be on, and the additional light may also be on; when the projection device projects blue light, the light source it projects not only contains blue light, but may also contain additional light, that is, when the projection device projects blue light, not only the blue light used for projecting blue light will be on, but the additional light May also be lit.
  • the additional light is yellow light
  • the additional light is yellow light
  • the additional light is yellow light
  • the additional light is yellow light
  • the first picture on the left in FIG. 4 when the projection device projects white light (ie, displays The blue light and the yellow light are switched on and off rapidly within 1 frame. Due to the fast switching speed, the human eye cannot see the alternating process, but only sees a mixture of four colors of red, green, blue, and yellow. , that is, white light.
  • the red light is on for the first 1/4 frame
  • the yellow light is on for 3/4 of the frame.
  • the green light is ⁇ 1/2 at the time of 1/4 frame Turn on within the frame time, and the yellow light turns on from 5/6 frame time to 11/12 frame time; as shown in the fourth picture from the left in Figure 4, when the projection device projects blue light (ie, blue light is displayed) , the blue light turns on from 1/2 frame to 3/4 frame, and the yellow light turns on from 11/12 frame to 1 frame.
  • the duration of the yellow light is on, the sum of the duration of the green light, the duration of the yellow light, and the duration of the blue light and the yellow light is equal to the duration of the white light and the yellow light.
  • the additional light is yellow light.
  • the red light, green light, blue light and yellow light are rapidly alternately switched on and off within one frame. At this time, what the human eye sees is white light.
  • the red light turns on in the first 1/4 of the frame, and the yellow light does not turn on
  • the third picture from the left in Figure 5 As shown in the figure, when the projection device projects green light, the green light turns on within the time of 1/4 frame to 1/2 frame, and the yellow light does not turn on; as shown in the fourth picture from the left in Figure 5, when When the projection device projects blue light, the blue light turns on from 1/2 frame to 3/4 frame, and the yellow light does not turn on.
  • the additional light is yellow light.
  • the red light, green light, blue light and yellow light are rapidly alternately switched on and off within one frame. At this time, what the human eye sees is white light.
  • the red light is turned on during the first 1/4 frame, and the yellow light is turned on at the time of 3/4 frame to 5/6 frame.
  • the fourth picture on the left in FIG. 6 when the projection device projects blue light, the blue light is turned on during the time of 1/2 frame to 3/4 of the frame, and the yellow light is not turned on.
  • the additional light is yellow light. As shown in the first picture on the left in FIG. 7 , when the projection device projects white light, the red light, the green light, the blue light and the yellow light are rapidly alternately switched on and off within one frame. At this time, what the human eye sees is white light.
  • the red light turns on in the first 1/4 of the frame, and the yellow light does not turn on;
  • the third picture from the left in Figure 7 As shown in the figure, when the projection device projects green light, the green light is turned on in the time of 1/4 frame to 1/2 frame, and the yellow light is turned on in the time of 5/6 frame to 11/12 frame;
  • the fourth picture on the left in Figure 7 when the projection device projects blue light, the blue light is turned on during the time of 1/2 frame to 3/4 frame, and the yellow light is turned on at the time of 11/12 frame to 1 frame time.
  • the duration of the additional lights on when projecting red light, the duration of the additional lights on, when projecting green light, the duration of the additional lights on, and when projecting blue light, the sum of the duration of the additional lights on is equal to the time when white light is projected, the duration of the additional lights on, satisfying RGB color mixing Principle, for example, the situation shown in FIG. 4 satisfies the RGB color mixing principle; otherwise, the RGB color mixing principle is not satisfied, for example, the situation shown in FIG. 5 , the situation shown in FIG. 6 , and the situation shown in FIG. 7 , does not meet the principle of RGB color mixing.
  • RGB color mixing Principle for example, the situation shown in FIG. 4 satisfies the RGB color mixing principle; otherwise, the RGB color mixing principle is not satisfied, for example, the situation shown in FIG. 5 , the situation shown in FIG. 6 , and the situation shown in FIG. 7 , does not meet the principle of RGB color mixing.
  • X R is the X data in the first color value of the red light projected by the projection device; Y R is the Y data in the first color value of the red light projected by the projection device; Z R is the projection device.
  • X G is the X data in the first color value of the green light projected by the projection device;
  • Y G is the Y in the first color value of the green light projected by the projection device data;
  • Z G is the Z data in the first color value of the green light projected by the projection device;
  • X B is the X data in the first color value of the blue light projected by the projection device; Y B is the blue light projected by the projection device.
  • Y data in the first color value of the projection device Z B is the Z data in the first color value of the blue light projected by the projection device;
  • Xw is the X data in the first color value of the white light projected by the projection device;
  • Yw is the Y data in the first color value of the white light projected by the projection device;
  • Zw is the Z data in the first color value of the white light projected by the projection device.
  • a color lookup table is constructed according to the first color value of red light, the first color value of green light, and the first color value of blue light.
  • a color lookup table by detecting the first color value of red light, the first color value of green light, the first color value of blue light, and the first color value of white light, a color lookup table can be constructed, and then the color lookup table can be constructed according to the first color value of green light.
  • Color lookup table and target chromaticity coordinates adjust the gain of the RGB channel of the projection device, which is convenient and fast.
  • the projection device is controlled to project any two of red light, green light, and blue light at the same time, and a mixed color value of the two lights projected by the projection device is acquired.
  • the mixed color value may be any of chromaticity coordinates and luminance in XYZ color space, RGB data, XYZ data in XYZ color space.
  • the projection device is controlled to project red light and green light at the same time, and the mixed color value of the red light and green light projected by the projection device is obtained, wherein the mixed light of the red light and the green light is Color value.
  • the projection device is controlled to project red light and blue light at the same time, and the mixed color value of red light and blue light projected by the projection device is obtained, wherein the mixed light of red light and blue light is purple light, that is, the color value of purple light is obtained.
  • the projection device is controlled to project blue light and green light at the same time, and the mixed color value of the blue light and green light projected by the projection device is obtained, wherein the mixed light of the blue light and the green light is cyan light, that is, the color value of the cyan light is obtained.
  • the mixed color value can be acquired through the above-mentioned sensing module.
  • a color lookup table is constructed according to the mixed color value and each first color value.
  • the mixed color values obtained in the above S2023 are chromaticity coordinates and luminance, they can be converted into XYZ data by the above equation (1), or if the above S2023 When the obtained mixed color value is RGB data, it can be converted into XYZ data through the above equation (2) first; then, the color lookup table is constructed according to the converted XYZ data.
  • the color lookup table can be constructed by detecting the first color value of red light, the first color value of green light, the first color value of blue light, the first color value of white light, and the mixed color value, Further, the gain of the RGB channel of the projection device can be adjusted according to the color lookup table and the target chromaticity coordinates, which is convenient and quick.
  • the second color value of the remaining saturation can be calculated based on the Gamma, so that the above-mentioned color look-up table can be obtained.
  • the second color value of the remaining saturation can be calculated by the following equations (4)-(6):
  • Gamma is the gamma value of the projection device, for example, 2.2;
  • X R (IRE) is the X data of red with saturation IRE/N, IRE is the data level value, and IRE is [0,N-1] Any integer in the range;
  • Y R (IRE) is the Y data for red with a saturation of IRE/N;
  • Z R (IRE) is the Z data for a red with a saturation of IRE/N;
  • X G (IRE) is the saturation is the X data of green with IRE/N;
  • Y G (IRE) is the Y data of green with saturation of IRE/N;
  • Z G (IRE) is the Z data of green with saturation of IRE/N;
  • X B (IRE) ) is the X data of blue with saturation of IRE/N;
  • Y B (IRE) is the Y data of blue with saturation of IRE/N;
  • Z B (IRE) is the blue of saturation of IRE/N Z data.
  • the second color value of each of red, green, and blue with a saturation of 100% is determined.
  • the second color values of red, green, and blue with a saturation of 100% can be determined through steps 1 to 4:
  • the third color value of the additional light can be determined according to each first color value by the following equation (7):
  • X Y is the X data in the third color value of the additional light
  • Y Y is the Y data in the third color value of the additional light
  • Z Y is the Z data in the third color value of the additional light.
  • the third color value and the first color value of each of the two types of light projected by the projection device determine the additional light distribution coefficients corresponding to the red light, green light, and blue light.
  • the additional light distribution coefficient corresponding to the red light represents the coefficient of the proportionally decreasing part of the Y data of the first color value of the white light when the on-time of the red light is shortened in the case of projecting white light;
  • the additional light distribution coefficient represents the coefficient of the proportionally decreasing part of the Y data of the first color value of the white light when the on-time of the green light is shortened in the case of projecting white light;
  • the additional light distribution coefficient corresponding to the blue light indicates that in the case of projecting white light , when the on-time of the blue light is shortened, the coefficient of the proportionally decreasing part of the Y data of the first color value of the white light.
  • the two kinds of light projected by the projection device are red light and green light, which can be based on the mixed color value of red light and green light projected by the projection device at the same time, the third color value, and the first color value of the red light projected by the projection device.
  • the color value and the first color value of green light are determined by the following equation (8) to determine the additional light distribution coefficients corresponding to each of red light, green light, and blue light:
  • is the additional light distribution coefficient corresponding to red light
  • is the additional light distribution coefficient corresponding to green light
  • is the additional light distribution corresponding to blue light coefficient.
  • the two types of light projected by the projection device are red light and blue light, which can be based on the mixed color value of the red light and the blue light projected by the projection device at the same time, the third color value, and the first color of the red light projected by the projection device.
  • value, the first color value of blue light, and the additional light distribution coefficient corresponding to each of red light, green light, and blue light is determined by the following equation (9):
  • the two types of light projected by the projection device are green light and blue light, which can be based on the green light projected by the projection device at the same time, the mixed color value of the blue light, the third color value, and the first color of the green light projected by the projection device.
  • value, the first color value of blue light, and the additional light distribution coefficient corresponding to each of red light, green light, and blue light is determined by the following equation (10):
  • the first color value of red light and the additional light distribution coefficient corresponding to red light determine the second color value of red with a saturation of 100%, according to the third color value, the first color of green light value and the additional light distribution coefficient corresponding to green light, determine the second color value of green with a saturation of 100%, and determine the saturation according to the third color value, the first color value of blue light, and the additional light distribution coefficient corresponding to blue light as 100% blue secondary color value.
  • the second color value of red with a saturation of 100% can be determined by the following equation (11):
  • the second color value of green with saturation of 100% can be determined by the following equation (12):
  • the second color value of blue with saturation of 100% can be determined by the following equation (13):
  • a color lookup table is constructed according to the respective second color values of red, green, and blue with a saturation of 100%.
  • IRE R , IRE G , and IRE B can be combined arbitrarily (wherein IRE R is the data level value corresponding to red, IRE R is any value in the range of [0, N]; IRE G is the corresponding data level value of green data level value, IRE G is any value in the range of [0, N]; IRE B is the data level value corresponding to blue, and IRE B is any value in the range of [0, N]), and substituted into the following equations respectively ( 14), find the IRE R , IRE G , and IRE B that make the distance between (x w , y w ) and the target chromaticity coordinates the smallest, which are represented by IRE Rmin , IRE Gmin , and IRE Bmin here, and then set IRE Rmin /N is determined as the gain factor for the red channel, IRE Gmin /N is determined as the gain factor for the green channel, and IRE Bmin /N is determined as the gain factor for the
  • FIG. 8 is a block diagram of a projection device control apparatus according to an exemplary embodiment, wherein the projection light source of the projection device includes red light, green light, blue light and additional light for improving the projection brightness of the projection device.
  • the device 800 includes: an acquisition module 801 for acquiring the target chromaticity coordinates of the projection light source in response to receiving a projection instruction; a determination module 802 for The target chromaticity coordinates and the pre-built color look-up table determine the gain coefficient of the RGB channel in the projection device; the adjustment module 803 is configured to adjust the RGB according to the gain coefficient determined by the determining module 802 channel gain.
  • the target chromaticity coordinates of the projection light source of the projection device are obtained, wherein the projection light source includes red light, green light, blue light and additional light for improving the projection brightness of the projection device; Then, the gain coefficient of the RGB channel in the projection device is determined according to the target chromaticity coordinates and the pre-built color look-up table; finally, the gain of the RGB channel is adjusted according to the gain coefficient.
  • the gain coefficient of the RGB channel can be quickly and directly determined, so that the gain of the RGB channel can be automatically adjusted according to the gain coefficient, and the color temperature of the projection device can be automatically adjusted at one time. The effect in place improves the user's visual experience.
  • the color lookup table is constructed by a color lookup table construction device.
  • the color lookup table constructing apparatus 900 includes: a control module 901, configured to control the projection device to project red light, green light, blue light, and white light in any order, and obtain the The first color value of the light projected by the device; the construction module 902 is configured to construct the color lookup table at least according to each of the first color values.
  • the building module 902 includes: a judging sub-module for judging whether the RGB color mixing principle is satisfied according to each of the first color values; a first building sub-module for judging if the RGB color mixing principle is satisfied, Then, the color lookup table is constructed according to the first color value of the red light, the first color value of the green light, and the first color value of the blue light.
  • the building module 902 further includes: a control sub-module, configured to control the projection device to simultaneously project the red light, the green light, and the blue light if the RGB color mixing principle is not satisfied. any two, and obtain the mixed color value of the two kinds of light projected by the projection device; the second construction sub-module is used for constructing the color lookup according to the mixed color value and each of the first color values surface.
  • a control sub-module configured to control the projection device to simultaneously project the red light, the green light, and the blue light if the RGB color mixing principle is not satisfied. any two, and obtain the mixed color value of the two kinds of light projected by the projection device.
  • the second construction sub-module is used for constructing the color lookup according to the mixed color value and each of the first color values surface.
  • the second construction sub-module includes: a determination sub-module, configured to determine the respective red, green, and blue colors with a saturation of 100% according to the mixed color value and each of the first color values.
  • a second color value configured to construct the color lookup table according to the respective second color values of red, green, and blue whose saturation is 100%.
  • the determination sub-module includes: a first color value determination sub-module for determining the third color value of the additional light according to each of the first color values; a distribution coefficient determination sub-module for using determining the red light, the green light and the blue light according to the mixed color value, the third color value and the first color value of each of the two lights projected by the projection device the corresponding additional light distribution coefficients; the second color value determination sub-module is used to determine saturation according to the third color value, the first color value of the red light, and the additional light distribution coefficient corresponding to the red light is the second color value of 100% red, according to the third color value, the first color value of green light, and the additional light distribution coefficient corresponding to the green light, determine the first color value of green with saturation of 100%.
  • the second color value of blue with a saturation of 100% is determined according to the third color value, the first color value of the blue light, and the additional light distribution coefficient corresponding to the blue light.
  • the above-mentioned color lookup table construction apparatus 900 may be integrated into the above-mentioned projection device control apparatus 800, or may be independent of the above-mentioned projection apparatus control apparatus 800, which is not specifically limited in the present disclosure.
  • the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of the above-mentioned projection device control method provided by the present disclosure.
  • FIG. 10 is a block diagram of an electronic device 1000 according to an exemplary embodiment.
  • the electronic device 1000 may include: a processor 1001 and a memory 1002 .
  • the electronic device 1000 may also include one or more of a multimedia component 1003 , an input/output (I/O) interface 1004 , and a communication component 1005 .
  • I/O input/output
  • the processor 1001 is used to control the overall operation of the electronic device 1000 to complete all or part of the steps in the above-mentioned projection device control method.
  • the memory 1002 is used to store various types of data to support the operation of the electronic device 1000, such data may include, for example, instructions for any application or method operating on the electronic device 1000, and application-related data, Such as contact data, messages sent and received, pictures, audio, video, and so on.
  • the memory 1002 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory ( Electrically Erasable Programmable Read-Only Memory (EEPROM for short), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (Read-Only Memory, ROM for short), magnetic memory, flash memory, magnetic disk or optical disk.
  • Multimedia components 1003 may include screen and audio components. Wherein the screen can be, for example, a touch screen, and the audio component is used for outputting and/or inputting audio signals.
  • the audio component may include a microphone for receiving external audio signals.
  • the received audio signal may be further stored in memory 1002 or transmitted through communication component 1005 .
  • the audio assembly also includes at least one speaker for outputting audio signals.
  • the I/O interface 1004 provides an interface between the processor 1001 and other interface modules, and the above-mentioned other interface modules may be a keyboard, a mouse, a button, and the like. These buttons can be virtual buttons or physical buttons.
  • the communication component 1005 is used for wired or wireless communication between the electronic device 1000 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or more of them The combination is not limited here. Therefore, the corresponding communication component 1005 may include: Wi-Fi module, Bluetooth module, NFC module and so on.
  • the electronic device 1000 may be implemented by one or more Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (Digital) Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor or other electronic components
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal Processor
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • controller microcontroller, microprocessor or other electronic components
  • microcontroller microprocessor or other electronic components
  • a computer-readable storage medium including program instructions, the program instructions implementing the steps of the above-mentioned projection device control method when executed by a processor.
  • the computer-readable storage medium can be the above-mentioned memory 1002 including program instructions, and the above-mentioned program instructions can be executed by the processor 1001 of the electronic device 1000 to complete the above-mentioned projection device control method.
  • FIG. 11 is a block diagram of an electronic device 1100 according to an exemplary embodiment.
  • the electronic device 1100 may be provided as a server.
  • the electronic device 1100 includes a processor 1122 , which may be one or more in number, and a memory 1132 for storing computer programs executable by the processor 1122 .
  • a computer program stored in memory 1132 may include one or more modules, each corresponding to a set of instructions.
  • the processor 1122 may be configured to execute the computer program to perform the above-described projection device control method.
  • the electronic device 1100 may also include a power supply component 1126, which may be configured to perform power management of the electronic device 1100, and a communication component 1150, which may be configured to enable communication of the electronic device 1100, eg, wired or wireless communication.
  • the electronic device 1100 may further include an input/output (I/O) interface 11511 .
  • Electronic device 1100 may operate based on an operating system stored in memory 1132, such as Windows Server TM , Mac OS X TM , Unix TM , Linux TM , and the like.
  • a computer-readable storage medium including program instructions, the program instructions implementing the steps of the above-mentioned projection device control method when executed by a processor.
  • the computer-readable storage medium can be the above-mentioned memory 1132 including program instructions, and the above-mentioned program instructions can be executed by the processor 1122 of the electronic device 1100 to complete the above-mentioned projection device control method.
  • a computer program product comprising a computer program executable by a programmable apparatus, the computer program having, when executed by the programmable apparatus, for performing the above The code section of the projection device control method.

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Abstract

本公开涉及一种投影设备控制方法、装置、介质及电子设备。其中,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光;所述方法包括:响应于接收到投影指令,获取所述投影光源的目标色度坐标;根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;根据所述增益系数,调整所述RGB通道的增益。这样,根据目标色度坐标和预先构建的颜色查找表,可以快速直接地确定出RGB通道的增益系数,从而根据该增益系数自动调整RGB通道的增益,达到了将投影设备的色温一次性自动调整到位的效果,提升了用户的观感体验。

Description

投影设备控制方法、装置、介质及电子设备
本公开要求于2021年02月22日提交中国专利局、申请号为202110197462.7、发明名称为“投影设备控制方法、装置、介质及电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本公开中。
技术领域
本公开涉及投影设备技术领域,具体地,涉及一种投影设备控制方法、装置、介质及电子设备。
背景技术
相比于显示面板,投影设备因光源、光路等各种因素,导致出厂时的各投影设备的色温有很大差异,即使是同一批次的投影设备,其色温也存在很大差异,因此,即使在出厂前调校好投影设备的色温,出厂到用户手上色温也是不一致的。工厂售后再针对每一台投影设备进行手动调校也不现实,因此,需要一种高效的色温自动调节方法,以提升用户的观感体验。
发明内容
为了克服相关技术中存在的问题,本公开提供一种投影设备控制方法、装置、介质及电子设备。
为了实现上述目的,第一方面,本公开提供一种投影设备控制方法,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光,所述方法包括:
响应于接收到投影指令,获取所述投影光源的目标色度坐标;
根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;
根据所述增益系数,调整所述RGB通道的增益。
可选地,所述颜色查找表通过以下方式来构建:
控制所述投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、所述投影设备所投射的光的第一色值;
至少根据每一所述第一色值,构建所述颜色查找表。
第二方面,本公开提供一种投影设备控制装置,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光;
所述装置包括:
获取模块,用于响应于接收到投影指令,获取所述投影光源的目标色度坐标;
确定模块,用于根据所述获取模块获取到的所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;
调整模块,用于根据所述确定模块确定出的所述增益系数,调整所述RGB通道的增益。
第三方面,本公开提供一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现本公开第一方面提供的所述方法的步骤。
第四方面,本公开提供一种电子设备,包括:
存储器,其上存储有计算机程序;
处理器,用于执行所述存储器中的所述计算机程序,以实现本公开第一方面提供的所述方法的步骤。
在上述技术方案中,在接收到投影指令时,获取投影设备的投影光源的目标色度坐标,其中,投影光源包括红光、绿光、蓝光以及用于提高投影设备的投影亮度的附加光;然后,根据目标色度坐标和预先构建的颜色查找表,确定投影设备中RGB通道的增益系数;最后,根据增益系数,调整RGB通道的增益。这样,根据目标色度坐标和预先构建的颜色查找表,可以快速直接地确定出RGB通道的增益系数,从而根据该增益系数自动调整RGB通道的增益,达到了将投影设备的色温一次性自动调整到位的效果,提升了用户的观感体验。
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本公开的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本公开,但并不构成对本公开的限制。在附图中:
图1是根据一示例性实施例示出的一种投影设备控制方法的流程图。
图2是根据一示例性实施例示出的一种颜色查找表的构建方法的流程图。
图3是根据一示例性实施例示出的一种至少根据每一第一色值,构建颜色查找表的方法的流程图。
图4是根据一示例性实施例示出的一种投影设备投射红光、绿光、蓝光、白光时各灯亮灯顺序的示意图。
图5是根据另一示例性实施例示出的一种投影设备投射红光、绿光、蓝光、白光时各灯亮灯顺序的示意图。
图6是根据另一示例性实施例示出的一种投影设备投射红光、绿光、蓝光、白光时各灯亮灯顺序的示意图。
图7是根据另一示例性实施例示出的一种投影设备投射红光、绿光、蓝光、白光时 各灯亮灯顺序的示意图。
图8是根据一示例性实施例示出的一种投影设备控制装置的框图。
图9是根据一示例性实施例示出的一种颜色查找表构建装置的框图。
图10是根据一示例性实施例示出的一种电子设备的框图。
图11是根据一示例性实施例示出的一种电子设备的框图。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本公开,并不用于限制本公开。
图1是根据一示例性实施例示出的一种投影设备控制方法的流程图。如图1所示,该方法包括S101~S103。
在S101中,响应于接收到投影指令,获取投影设备的投影光源的目标色度坐标。
在本公开中,投影设备控制方法可以应用于投影设备,也可以应用于与投影设备连接的终端(例如,服务器、智能手机、平板电脑等)。
当用户通过投影设备投射画面时,可以通过投影设备上的投影按钮触发上述投影指令,也可以通过遥控器或与投影设备通信连接的智能终端(例如,智能手机)触发上述投影指令。
投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光。其中,附加光可以例如是黄光,即投影设备的投影光源不仅包括红光、绿光、蓝光,还包括黄光。
另外,目标色度坐标可以是用户当前设定的值,示例地,用户可以通过投影设备上的色度坐标调节按钮来设定上述目标色度坐标,也可以通过遥控器或与投影设备通信连接的智能终端(例如,智能手机)来设定上述目标色度坐标;若未获取到用户当前设定的值,可以将用户最近一次设定的值确定为目标色度坐标。
在S102中,根据目标色度坐标和预先构建的颜色查找表,确定投影设备中RGB通道的增益系数。
在本公开中,RGB通道包括红色(R)通道、绿色(G)通道以及蓝色(B)通道,这样,可以根据色值,确定出红色(R)通道的增益系数、绿色(G)通道的增益系数以及蓝色(B)通道的增益系数。
虽然投影设备的色温的一致性较差,但其有较好的灰阶一致性(指不同亮度下色温都几乎接近)和伽马(Gamma)特性,因此,可以基于这些特性,构建颜色查找表(Lookup Table,LuT),进而根据目标色度坐标和该颜色查找表,确定投影设备中RGB通道的增益系数。
在S103中,根据增益系数,调整RGB通道的增益。
在本公开中,在通过S102确定出红色(R)通道的增益系数、绿色(G)通道的增益系数以及蓝色(B)通道的增益系数,可以根据红色(R)通道的增益系数调整投影设备中红色(R)通道的增益,根据绿色(G)通道的增益系数调整投影设备中绿色(G)通道的增益,根据蓝色(B)通道的增益系数调整投影设备中蓝色(B)通道的增益。
在上述技术方案中,在接收到投影指令时,获取投影设备的投影光源的目标色度坐标,其中,投影光源包括红光、绿光、蓝光以及用于提高投影设备的投影亮度的附加光;然后,根据目标色度坐标和预先构建的颜色查找表,确定投影设备中RGB通道的增益系数;最后,根据增益系数,调整RGB通道的增益。这样,根据目标色度坐标和预先构建的颜色查找表,可以快速直接地确定出RGB通道的增益系数,从而根据该增益系数自动调整RGB通道的增益,达到了将投影设备的色温一次性自动调整到位的效果,提升了用户的观感体验。
下面针对上述颜色查找表的构建方式进行详细说明。具体来说,可以通过图2中所示的S201和S202来实现。
在S201中,控制投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、投影设备所投射的光的第一色值。
在本公开中,第一色值可以为XYZ色彩空间中的色度坐标和亮度、RGB数据、XYZ色彩空间中的XYZ数据中任一者。其中,XYZ色彩空间为国际照明协会(International Commission on illumination,简称CIE)在1931年定义的XYZ色彩空间,又称CIE1931。
另外,可以通过传感模块来接收每次投射时、投影设备所投射的光,从而得到每次投射的光的第一色值,之后,投影设备通过与该传感模块通信即可获取到各第一色值。其中,传感模块可以为色温传感器、摄像机、照度计、积分球等,并且,该传感模块可以与该投影设备通过无线网络或有线网络连接。
此外,需要说明的是,投影设备可以按照任意顺序分别红光、绿光、蓝光、白光,只要能够获取到相应的第一色值即可。示例地,可以控制投影设备依次投射红光、绿光、蓝光、白光,并获取每次投射的光的第一色值;又示例地,可以控制投影设备依次投射白光、红光、蓝光、绿光,并获取每次投射的光的第一色值。
在S202中,至少根据每一第一色值,构建颜色查找表。
在本公开中,在构建颜色查找表前,若上述S201中获取到的第一色值为色度坐标和亮度,或者RGB数据时,可以先将其转换为XYZ数据,然后再根据其进行颜色查找表的构建。
示例地,可以通过以下等式(1)来将色度坐标(x,y)和亮度L转换为XYZ数据:
Figure PCTCN2021135866-appb-000001
示例地,可以通过以下等式(2)来将RGB数据转换为XYZ数据:
Figure PCTCN2021135866-appb-000002
其中,
Figure PCTCN2021135866-appb-000003
为转换矩阵。
下面针对上述S202中的至少根据每一第一色值,构建颜色查找表的具体实施方式进行详细说明。具体来说,可以通过图3中所示的S2021和S2022来实现:
在S2021中,根据每一第一色值,判断是否满足RGB混色原理。
在本公开中,由于投影设备的投影光源不仅包含红光、绿光、蓝光,还包括附加光。因此,投影设备投射红光时,其投射的光源不仅包含红光,还可能包含附加光,即,投影设备投射红光时,不仅用于投射红光的红灯会亮,用于投射附加光的附加灯也可能会亮;同样地,投影设备投射绿光时,其投射的光源不仅包含绿光,还可能包含附加光,即,投影设备投射绿光时,不仅用于投射绿光的绿灯会亮,附加灯也可能会亮;投影设备投射蓝光时,其投射的光源不仅包含蓝光,还可能包含附加光,即,投影设备投射蓝光时,不仅用于投射蓝光的蓝灯会亮,附加灯也可能会亮。
示例地,附加光为黄光,相应地,附加灯为黄灯;如图4中的左侧第一张图所示,投影设备投射白光时(即显示白光),用于红灯、绿灯、蓝灯以及黄灯在1帧的时间内快速交替开关,由于开关速度很快,所以人眼看不到交替的过程,看到的是红光、绿光、蓝光、黄光四种颜色混合的光,即白光。如图4中的左侧第二张图所示,当投影设备投射红光时(即显示红光),红灯在前1/4帧的时间内开,黄灯在3/4帧的时间~5/6帧的时间内开;如图4中的左侧第三张图所示,当投影设备投射绿光时(即显示绿光),绿灯在1/4帧的时间~1/2帧的时间内开,黄灯在5/6帧的时间~11/12帧的时间内开;如图4中的左侧第四张图所示,当投影设备投射蓝光时(即显示蓝光),蓝灯在1/2帧的时间~3/4帧的时间内开,黄灯在11/12帧的时间~1帧的时间内开。其中,在投射红光时、黄灯开的时长,投射绿光时、黄灯开的时长以及投射蓝光时、黄灯开的时长的总和等于投射白光时、黄灯开的时长。
又示例地,附加光为黄光,如图5中的左侧第一张图所示,投影设备投射白光时,红灯、绿灯、蓝灯以及黄灯在1帧的时间内快速交替开关,此时,人眼看到的是白光。 如图5中的左侧第二张图所示,当投影设备投射红光时,红灯在前1/4帧的时间内开,黄灯不开;如图5中的左侧第三张图所示,当投影设备投射绿光时,绿灯在1/4帧的时间~1/2帧的时间内开,黄灯不开;如图5中的左侧第四张图所示,当投影设备投射蓝光时,蓝灯在1/2帧的时间~3/4帧的时间内开,黄灯不开。
又示例地,附加光为黄光,如图6中的左侧第一张图所示,投影设备投射白光时,红灯、绿灯、蓝灯以及黄灯在1帧的时间内快速交替开关,此时,人眼看到的是白光。如图6中的左侧第二张图所示,当投影设备投射红光时,红灯在前1/4帧的时间内开,黄灯在3/4帧的时间~5/6帧的时间内开;如图6中的左侧第三张图所示,当投影设备投射绿光时,绿灯在1/4帧的时间~1/2帧的时间内开,黄灯不开;如图6中的左侧第四张图所示,当投影设备投射蓝光时,蓝灯在1/2帧的时间~3/4帧的时间内开,黄灯不开。
又示例地,附加光为黄光,如图7中的左侧第一张图所示,投影设备投射白光时,红灯、绿灯、蓝灯以及黄灯在1帧的时间内快速交替开关,此时,人眼看到的是白光。如图7中的左侧第二张图所示,当投影设备投射红光时,红灯在前1/4帧的时间内开,黄灯不开;如图7中的左侧第三张图所示,当投影设备投射绿光时,绿灯在1/4帧的时间~1/2帧的时间内开,黄灯在5/6帧的时间~11/12帧的时间内开;如图7中的左侧第四张图所示,当投影设备投射蓝光时,蓝灯在1/2帧的时间~3/4帧的时间内开,黄灯在11/12帧的时间~1帧的时间内开。
其中,在投射红光时、附加灯开的时长,投射绿光时、附加灯开的时长以及投射蓝光时、附加灯开的时长的总和等于投射白光时、附加灯开的时长,满足RGB混色原理,示例地,图4所示的情况,满足RGB混色原理;否则,不满足RGB混色原理,例如,图5中所示的情况、图6中所示的情况以及图7中所示的情况,不满足RGB混色原理。
由于无法通过肉眼直接判定是否满足RGB混色原理,因此,需要采集各第一色值,并根据该第一色值,判断是否满足RGB混色原理,即判定是否满足以下等式(3):
Figure PCTCN2021135866-appb-000004
其中,X R为投影设备所投射的红光的第一色值中的X数据;Y R为投影设备所投射的红光的第一色值中的Y数据;Z R为投影设备所投射的红光的第一色值中的Z数据;X G为投影设备所投射的绿光的第一色值中的X数据;Y G为投影设备所投射的绿光的第一色值中的Y数据;Z G为投影设备所投射的绿光的第一色值中的Z数据;X B为投影设备所投射的蓝光的第一色值中的X数据;Y B为投影设备所投射的蓝光的第一色值中的Y数据;Z B为投影设备所投射的蓝光的第一色值中的Z数据;X w为投影设备所投射的白光的第一色值中的X数据;Y w为投影设备所投射的白光的第一色值中的Y数据;Z w为投影设备所投射的白光的第一色值中的Z数据。
若满足RGB混色原理,则执行S2022;若不满足RGB混色原理,则执行S2023和S2024。
返回图3,在S2022中,根据红光的第一色值、绿光的第一色值、蓝光的第一色值,构建颜色查找表。
在该种实施方式中,通过检测红光的第一色值、绿光的第一色值、蓝光的第一色值以及白光的第一色值,即可构建颜色查找表,进而可以根据该颜色查找表和目标色度坐标,调整投影设备的RGB通道的增益,方便快捷。
在S2023中,控制投影设备同时投射红光、绿光、蓝光中的任两种,并获取投影设备所投射的两种光的混合色值。
在本公开中,混合色值可以为XYZ色彩空间中的色度坐标和亮度、RGB数据、XYZ色彩空间中的XYZ数据中任一者。
示例地,控制投影设备同时投射红光、绿光,并获取投影设备所投射的红光、绿光的混合色值,其中,红光和绿光的混合光为黄光,即获取黄光的色值。
又示例地,控制投影设备同时投射红光、蓝光,并获取投影设备所投射的红光、蓝光的混合色值,其中,红光和蓝光的混合光为紫光,即获取紫光的色值。
又示例地,控制投影设备同时投射蓝光、绿光,并获取投影设备所投射的蓝光、绿光的混合色值,其中,蓝光和绿光的混合光为青光,即获取青光的色值。
另外,可以通过上述传感模块来获取该混合色值。
在S2024中,根据混合色值和每一第一色值,构建颜色查找表。
在本公开中,在构建颜色查找表前,若上述S2023中获取到的混合色值为色度坐标和亮度,则可以通过以上等式(1)将其转换为XYZ数据,或者若上述S2023中获取到的混合色值为RGB数据时,可以先通过以上等式(2)将其转换为XYZ数据;然后,再根据转换所得到的XYZ数据进行颜色查找表的构建。
在该种实施方式中,过检测红光的第一色值、绿光的第一色值、蓝光的第一色值、白光的第一色值以及混合色值,即可构建颜色查找表,进而可以根据该颜色查找表和目标色度坐标,调整投影设备的RGB通道的增益,方便快捷。
下面针对上述在S2022中根据红光的第一色值、绿光的第一色值、蓝光的第一色值,构建颜色查找表的具体实施方式进行详细说明。具体来说,可以通过以下步骤1)和步骤2)来实现:
1)将红光的第一色值、绿光的第一色值、蓝光的第一色值分别作为饱和度为100%的红色、绿色、蓝色各自的第二色值(即饱和度为100%的红色的第二色值中的X数据X R(N)、饱和度为100%的红色的第二色值中的Y数据Y R(N)、饱和度为100%的红色的第二色值中的Z数据Z R(N)、饱和度为100%的绿色的第二色值中的X数据X G(N)、饱和度为100%的绿色的第二色值中的Y数据Y G(N)、饱和度为100%的绿色的第二色值中的Z 数据Z G(N)、饱和度为100%的蓝色的第二色值中的X数据X B(N)、饱和度为100%的蓝色的第二色值中的Y数据Y B(N)、饱和度为100%的蓝色的第二色值中的Z数据Z B(N),其中,N为数据水平值IRE的最大值,例如,N=256、N=1024等,IRE为[0,N]范围内的任意整数);
2)由于投影光源的亮度一般都符合Gamma特性,故可以基于Gamma来计算其余饱和度的第二色值,从而可以得到上述颜色查找表。
示例地,可以通过以下等式(4)~(6)来计算其余饱和度的第二色值:
Figure PCTCN2021135866-appb-000005
Figure PCTCN2021135866-appb-000006
Figure PCTCN2021135866-appb-000007
其中,Gamma为投影设备的伽马值,例如,2.2;X R(IRE)为饱和度为IRE/N的红色的X数据,IRE为数据水平值,并且,IRE为[0,N-1]范围内的任意整数;Y R(IRE)为饱和度为IRE/N的红色的Y数据;Z R(IRE)为饱和度为IRE/N的红色的Z数据;X G(IRE)为饱和度为IRE/N的绿色的X数据;Y G(IRE)为饱和度为IRE/N的绿色的Y数据;Z G(IRE)为饱和度为IRE/N的绿色的Z数据;X B(IRE)为饱和度为IRE/N的蓝色的X数据;Y B(IRE)为饱和度为IRE/N的蓝色的Y数据;Z B(IRE)为饱和度为IRE/N的蓝色的Z数据。
示例地,N=1024,通过上述方法得到的颜色查找表如下表1中所示:
表1颜色查找表
IRE X R Y R Z R X G Y G Z G X B Y B Z B
0 X R(0) Y R(0) Z R(0) X G(0) Y G(0) Z G(0) X B(0) Y B(0) Z B(0)
1 X R(1) Y R(1) Z R(1) X G(1) Y G(1) Z G(1) X B(1) Y B(1) Z B(1)
2 …… …… …… …… …… …… …… …… ……
3 …… …… …… …… …… …… …… …… ……
…… …… …… …… …… …… …… …… …… ……
…… …… …… …… …… …… …… …… …… ……
1021 …… …… …… …… …… …… …… …… ……
1022 …… …… …… …… …… …… …… …… ……
1023 X R(1023) Y R(1023) Z R(1023) X G(1023) Y G(1023) Z G(1023) X B(1023) Y B(1023) Z B(1023)
1024 X R(1024) Y R(1024) Z R(1024) X G(1024) Y G(1024) Z G(1024) X B(1024) Y B(1024) Z B(1024)
下面针对S2024中根据混合色值和每一第一色值,构建颜色查找表的具体实施方式进行详细说明。具体来说,可以通过以下步骤(1)和步骤(2)来实现:
(1)根据混合色值和每一第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值。
具体来说,可以通过步骤①~步骤④来确定饱和度为100%的红色、绿色、蓝色各自的第二色值:
①根据每一第一色值,确定附加光的第三色值。
示例地,可以根据每一第一色值,通过以下等式(7)来确定附加光的第三色值:
Figure PCTCN2021135866-appb-000008
其中,X Y为附加光的第三色值中的X数据;Y Y为附加光的第三色值中的Y数据;Z Y为附加光的第三色值中的Z数据。
②根据混合色值、第三色值以及投影设备所投射的两种光中每一种光的第一色值,确定红光、绿光、蓝光各自对应的附加光分配系数。
在本公开中,红光对应的附加光分配系数表征在投射白光的情况下,红灯的开灯时长缩短时,白光的第一色值的Y数据等比例下降部分的系数;绿光对应的附加光分配系数表征在投射白光的情况下,绿灯的开灯时长缩短时,白光的第一色值的Y数据等比例下降部分的系数;蓝光对应的附加光分配系数表征在投射白光的情况下,蓝灯的开灯时长缩短时,白光的第一色值的Y数据等比例下降部分的系数。
示例地,投影设备所投射的两种光为红光、绿光,可以根据投影设备同时投射的红光、绿光的混合色值、第三色值以及投影设备所投射的红光的第一色值、绿光的第一色 值,通过以下等式(8)来确定红光、绿光、蓝光各自对应的附加光分配系数:
Figure PCTCN2021135866-appb-000009
其中,
Figure PCTCN2021135866-appb-000010
为投影设备同时投射的红光、绿光的混合色值中的X数据;
Figure PCTCN2021135866-appb-000011
为投影设备同时投射的红光、绿光的混合色值中的Y数据;
Figure PCTCN2021135866-appb-000012
为投影设备同时投射的红光、绿光的混合色值中的Z数据;α为红光对应的附加光分配系数;β为绿光对应的附加光分配系数;γ为蓝光对应的附加光分配系数。
又示例地,投影设备所投射的两种光为红光、蓝光,可以根据投影设备同时投射的红光、蓝光的混合色值、第三色值以及投影设备所投射的红光的第一色值、蓝光的第一色值,通过以下等式(9)来确定红光、绿光、蓝光各自对应的附加光分配系数:
Figure PCTCN2021135866-appb-000013
其中,
Figure PCTCN2021135866-appb-000014
为投影设备同时投射的红光、蓝光的混合色值中的X数据;
Figure PCTCN2021135866-appb-000015
为投影设备同时投射的红光、蓝光的混合色值中的Y数据;
Figure PCTCN2021135866-appb-000016
为投影设备同时投射的红光、蓝光的混合色值中的Z数据。
又示例地,投影设备所投射的两种光为绿光、蓝光,可以根据投影设备同时投射的绿光、蓝光的混合色值、第三色值以及投影设备所投射的绿光的第一色值、蓝光的第一色值,通过以下等式(10)来确定红光、绿光、蓝光各自对应的附加光分配系数:
Figure PCTCN2021135866-appb-000017
其中,
Figure PCTCN2021135866-appb-000018
为投影设备同时投射的绿光、蓝光的混合色值中的X数据;
Figure PCTCN2021135866-appb-000019
为投影设备同时投射的绿光、蓝光的混合色值中的Y数据;
Figure PCTCN2021135866-appb-000020
为投影设备同时投射的绿光、蓝光的混合色值中的Z数据。
③根据第三色值、红光的第一色值以及红光对应的附加光分配系数,确定饱和度为100%的红色的第二色值,根据第三色值、绿光的第一色值以及绿光对应的附加光分配系数,确定饱和度为100%的绿色的第二色值,根据第三色值、蓝光的第一色值以及蓝光对应的附加光分配系数,确定饱和度为100%的蓝色的第二色值。
示例地,可以根据第三色值、红光的第一色值以及红光对应的附加光分配系数,通过以下等式(11)来确定饱和度为100%的红色的第二色值:
Figure PCTCN2021135866-appb-000021
示例地,可以根据第三色值、绿光的第一色值以及绿光对应的附加光分配系数,通过以下等式(12)来确定饱和度为100%的绿色的第二色值:
Figure PCTCN2021135866-appb-000022
示例地,可以根据第三色值、蓝光的第一色值以及蓝光对应的附加光分配系数,通过以下等式(13)来确定饱和度为100%的蓝色的第二色值:
Figure PCTCN2021135866-appb-000023
(2)根据饱和度为100%的红色、绿色、蓝色各自的第二色值,构建颜色查找表。
由于根据饱和度为100%的红色、绿色、蓝色各自的第二色值,构建颜色查找表的具体实施方式在S2022中已经详细描述,这里不再赘述。
下面针对上述在S102中根据目标色度坐标和预先构建的颜色查找表,确定投影设备中RGB通道的增益系数的具体实施方式进行详细说明:
在本公开中,可以将IRE R、IRE G、IRE B任意组合(其中,IRE R为红色对应的数据水平值,IRE R为[0,N]范围内的任意值;IRE G为绿色对应的数据水平值,IRE G为[0,N]范围内的任意值;IRE B为蓝色对应的数据水平值,IRE B为[0,N]范围内的任意值),分别代入以下等式(14)中,找到使得(x w,y w)与目标色度坐标之间的距离最小的IRE R、IRE G、IRE B,这里用IRE Rmin、IRE Gmin、IRE Bmin表示,然后,将IRE Rmin/N确定为红色通道的增益系数、将IRE Gmin/N确定为绿色通道增益系数、将IRE Bmin/N确定为蓝色通道的增益系数。
Figure PCTCN2021135866-appb-000024
图8是根据一示例性实施例示出的一种投影设备控制装置的框图,其中,投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光。如 图8所示,该装置800包括:获取模块801,用于响应于接收到投影指令,获取所述投影光源的目标色度坐标;确定模块802,用于根据所述获取模块801获取到的所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;调整模块803,用于根据所述确定模块802确定出的所述增益系数,调整所述RGB通道的增益。
在上述技术方案中,在接收到投影指令时,获取投影设备的投影光源的目标色度坐标,其中,投影光源包括红光、绿光、蓝光以及用于提高投影设备的投影亮度的附加光;然后,根据目标色度坐标和预先构建的颜色查找表,确定投影设备中RGB通道的增益系数;最后,根据增益系数,调整RGB通道的增益。这样,根据目标色度坐标和预先构建的颜色查找表,可以快速直接地确定出RGB通道的增益系数,从而根据该增益系数自动调整RGB通道的增益,达到了将投影设备的色温一次性自动调整到位的效果,提升了用户的观感体验。
可选地,所述颜色查找表通过颜色查找表构建装置来构建。如图9所示该颜色查找表构建装置900包括:控制模块901,用于控制所述投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、所述投影设备所投射的光的第一色值;构建模块902,用于至少根据每一所述第一色值,构建所述颜色查找表。
可选地,所述构建模块902包括:判断子模块,用于根据每一所述第一色值,判断是否满足RGB混色原理;第一构建子模块,用于若满足所述RGB混色原理,则根据所述红光的第一色值、所述绿光的第一色值、所述蓝光的第一色值,构建所述颜色查找表。
可选地,所述构建模块902还包括:控制子模块,用于若不满足所述RGB混色原理,则控制所述投影设备同时投射所述红光、所述绿光、所述蓝光中的任两种,并获取所述投影设备所投射的两种光的混合色值;第二构建子模块,用于根据所述混合色值和每一所述第一色值,构建所述颜色查找表。
可选地,所述第二构建子模块包括:确定子模块,用于根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值;查找表构建子模块,用于根据所述饱和度为100%的红色、绿色、蓝色各自的第二色值,构建所述颜色查找表。
可选地,所述确定子模块,包括:第一色值确定子模块,用于根据每一所述第一色值,确定所述附加光的第三色值;分配系数确定子模块,用于根据所述混合色值、所述第三色值以及所述投影设备所投射的两种光中每一种光的第一色值,确定所述红光、所述绿光、所述蓝光各自对应的附加光分配系数;第二色值确定子模块,用于根据所述第三色值、所述红光的第一色值以及所述红光对应的附加光分配系数,确定饱和度为100% 的红色的第二色值,根据所述第三色值、所述绿光的第一色值以及所述绿光对应的附加光分配系数,确定饱和度为100%的绿色的第二色值,根据所述第三色值、所述蓝光的第一色值以及所述蓝光对应的附加光分配系数,确定饱和度为100%的蓝色的第二色值。
另外,需要说明的是,上述颜色查找表构建装置900可以集成于上述投影设备控制装置800中,也可以独立于上述投影设备控制装置800,在本公开中不作具体限定。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
本公开还提供一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现本公开提供的上述投影设备控制方法的步骤。
图10是根据一示例性实施例示出的一种电子设备1000的框图。如图10所示,该电子设备1000可以包括:处理器1001,存储器1002。该电子设备1000还可以包括多媒体组件1003,输入/输出(I/O)接口1004,以及通信组件1005中的一者或多者。
其中,处理器1001用于控制该电子设备1000的整体操作,以完成上述的投影设备控制方法中的全部或部分步骤。存储器1002用于存储各种类型的数据以支持在该电子设备1000的操作,这些数据例如可以包括用于在该电子设备1000上操作的任何应用程序或方法的指令,以及应用程序相关的数据,例如联系人数据、收发的消息、图片、音频、视频等等。该存储器1002可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,例如静态随机存取存储器(Static Random Access Memory,简称SRAM),电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,简称EEPROM),可擦除可编程只读存储器(Erasable Programmable Read-Only Memory,简称EPROM),可编程只读存储器(Programmable Read-Only Memory,简称PROM),只读存储器(Read-Only Memory,简称ROM),磁存储器,快闪存储器,磁盘或光盘。多媒体组件1003可以包括屏幕和音频组件。其中屏幕例如可以是触摸屏,音频组件用于输出和/或输入音频信号。例如,音频组件可以包括一个麦克风,麦克风用于接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1002或通过通信组件1005发送。音频组件还包括至少一个扬声器,用于输出音频信号。I/O接口1004为处理器1001和其他接口模块之间提供接口,上述其他接口模块可以是键盘,鼠标,按钮等。这些按钮可以是虚拟按钮或者实体按钮。通信组件1005用于该电子设备1000与其他设备之间进行有线或无线通信。无线通信,例如Wi-Fi,蓝牙,近场通信(Near Field Communication,简称NFC),2G、3G、4G、NB-IOT、eMTC、或其他5G等等,或它们中的一种或几种的组合,在此不做限定。因此相应的该通信组件1005可以包括:Wi-Fi模块,蓝牙模块,NFC模块等等。
在一示例性实施例中,电子设备1000可以被一个或多个应用专用集成电路 (Application Specific Integrated Circuit,简称ASIC)、数字信号处理器(Digital Signal Processor,简称DSP)、数字信号处理设备(Digital Signal Processing Device,简称DSPD)、可编程逻辑器件(Programmable Logic Device,简称PLD)、现场可编程门阵列(Field Programmable Gate Array,简称FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述的投影设备控制方法。
在另一示例性实施例中,还提供了一种包括程序指令的计算机可读存储介质,该程序指令被处理器执行时实现上述的投影设备控制方法的步骤。例如,该计算机可读存储介质可以为上述包括程序指令的存储器1002,上述程序指令可由电子设备1000的处理器1001执行以完成上述的投影设备控制方法。
图11是根据一示例性实施例示出的一种电子设备1100的框图。例如,电子设备1100可以被提供为一服务器。参照图11,电子设备1100包括处理器1122,其数量可以为一个或多个,以及存储器1132,用于存储可由处理器1122执行的计算机程序。存储器1132中存储的计算机程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外,处理器1122可以被配置为执行该计算机程序,以执行上述的投影设备控制方法。
另外,电子设备1100还可以包括电源组件1126和通信组件1150,该电源组件1126可以被配置为执行电子设备1100的电源管理,该通信组件1150可以被配置为实现电子设备1100的通信,例如,有线或无线通信。此外,该电子设备1100还可以包括输入/输出(I/O)接口11511。电子设备1100可以操作基于存储在存储器1132的操作系统,例如Windows Server TM,Mac OS X TM,Unix TM,Linux TM等等。
在另一示例性实施例中,还提供了一种包括程序指令的计算机可读存储介质,该程序指令被处理器执行时实现上述的投影设备控制方法的步骤。例如,该计算机可读存储介质可以为上述包括程序指令的存储器1132,上述程序指令可由电子设备1100的处理器1122执行以完成上述的投影设备控制方法。
在另一示例性实施例中,还提供一种计算机程序产品,该计算机程序产品包含能够由可编程的装置执行的计算机程序,该计算机程序具有当由该可编程的装置执行时用于执行上述的投影设备控制方法的代码部分。
以上结合附图详细描述了本公开的优选实施方式,但是,本公开并不限于上述实施方式中的具体细节,在本公开的技术构思范围内,可以对本公开的技术方案进行多种简单变型,这些简单变型均属于本公开的保护范围。
另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合。为了避免不必要的重复,本公开对各种可能的组合方式不再另行说明。
此外,本公开的各种不同的实施方式之间也可以进行任意组合,只要其不违背本公开的思想,其同样应当视为本公开所公开的内容。

Claims (22)

  1. 一种投影设备控制方法,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光;
    所述方法包括:
    响应于接收到投影指令,获取所述投影光源的目标色度坐标;
    根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;
    根据所述增益系数,调整所述RGB通道的增益。
  2. 根据权利要求1所述的方法,其中,所述颜色查找表通过以下方式来构建:
    控制所述投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、所述投影设备所投射的光的第一色值;
    至少根据每一所述第一色值,构建所述颜色查找表。
  3. 根据权利要求2所述的方法,其中,所述至少根据每一所述第一色值,构建所述颜色查找表,包括:
    根据每一所述第一色值,判断是否满足RGB混色原理;
    若满足所述RGB混色原理,则根据所述红光的第一色值、所述绿光的第一色值、所述蓝光的第一色值,构建所述颜色查找表。
  4. 根据权利要求3所述的方法,其中,所述至少根据每一所述第一色值,构建所述颜色查找表,还包括:
    若不满足所述RGB混色原理,则控制所述投影设备同时投射所述红光、所述绿光、所述蓝光中的任两种,并获取所述投影设备所投射的两种光的混合色值;
    根据所述混合色值和每一所述第一色值,构建所述颜色查找表。
  5. 根据权利要求4所述的方法,其中,所述根据所述混合色值和每一所述第一色值,构建所述颜色查找表,包括:
    根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值;
    根据所述饱和度为100%的红色、绿色、蓝色各自的第二色值,构建所述颜色查找表。
  6. 根据权利要求5所述的方法,其中,所述根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值,包括:
    根据每一所述第一色值,确定所述附加光的第三色值;
    根据所述混合色值、所述第三色值以及所述投影设备所投射的两种光中每一种光的第一色值,确定所述红光、所述绿光、所述蓝光各自对应的附加光分配系数;
    根据所述第三色值、所述红光的第一色值以及所述红光对应的附加光分配系数,确 定饱和度为100%的红色的第二色值,根据所述第三色值、所述绿光的第一色值以及所述绿光对应的附加光分配系数,确定饱和度为100%的绿色的第二色值,根据所述第三色值、所述蓝光的第一色值以及所述蓝光对应的附加光分配系数,确定饱和度为100%的蓝色的第二色值。
  7. 根据权利要求1-6中任一项所述的方法,其中,所述根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数,包括:
    将IRE R、IRE G、IRE B任意组合,分别代入以下公式中,找到使得色度坐标(x w,y w)与所述目标色度坐标之间的距离最小的IRE R、IRE G、IRE B
    Figure PCTCN2021135866-appb-100001
    其中,IRE R为红色对应的数据水平值,IRE R为[0,N]范围内的任意值,N为所述数据水平值的最大值;IRE G为绿色对应的数据水平值,IRE G为[0,N]范围内的任意值;IRE B为蓝色对应的数据水平值,IRE B为[0,N]范围内的任意值;X R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的X数据;Y R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的Y数据;Z R(IRE R)为饱和度为所述颜色查找表中、饱和度为IRE R/N的红色的Z数据;X G(IRE G)为饱和度为所述颜色查找表中、饱和度为IRE G/N的绿色的X数据;Y G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Y数据;Z G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Z数据;X B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的X数据;Y B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Y数据;Z B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Z数据;
    将IRE Rmin/N确定为所述红色通道的增益系数、将IRE Gmin/N确定为所述绿色通道增益系数、将IRE Bmin/N确定为蓝色通道的增益系数,其中,IRE Rmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE R,IRE Gmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE G,IRE Bmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE B
  8. 一种投影设备控制装置,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光;
    所述装置包括:
    获取模块,用于响应于接收到投影指令,获取所述投影光源的目标色度坐标;
    确定模块,用于根据所述获取模块获取到的所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;
    调整模块,用于根据所述确定模块确定出的所述增益系数,调整所述RGB通道的 增益。
  9. 根据权利要求8所述的装置,其中,所述颜色查找表通过颜色查找表构建装置来构建;
    所述颜色查找表构建装置包括:
    控制模块,用于控制所述投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、所述投影设备所投射的光的第一色值;
    构建模块,用于至少根据每一所述第一色值,构建所述颜色查找表。
  10. 根据权利要求9所述的装置,其中,所述构建模块包括:
    判断子模块,用于根据每一所述第一色值,判断是否满足RGB混色原理;
    第一构建子模块,用于若满足所述RGB混色原理,则根据所述红光的第一色值、所述绿光的第一色值、所述蓝光的第一色值,构建所述颜色查找表。
  11. 根据权利要求10所述的装置,其中,所述构建模块还包括:
    控制子模块,用于若不满足所述RGB混色原理,则控制所述投影设备同时投射所述红光、所述绿光、所述蓝光中的任两种,并获取所述投影设备所投射的两种光的混合色值;
    第二构建子模块,用于根据所述混合色值和每一所述第一色值,构建所述颜色查找表。
  12. 根据权利要求11所述的装置,其中,所述第二构建子模块包括:
    确定子模块,用于根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值;
    查找表构建子模块,用于根据所述饱和度为100%的红色、绿色、蓝色各自的第二色值,构建所述颜色查找表。
  13. 根据权利要求12所述的装置,其中,所述确定子模块包括:
    第一色值确定子模块,用于根据每一所述第一色值,确定所述附加光的第三色值;
    分配系数确定子模块,用于根据所述混合色值、所述第三色值以及所述投影设备所投射的两种光中每一种光的第一色值,确定所述红光、所述绿光、所述蓝光各自对应的附加光分配系数;
    第二色值确定子模块,用于根据所述第三色值、所述红光的第一色值以及所述红光对应的附加光分配系数,确定饱和度为100%的红色的第二色值,根据所述第三色值、所述绿光的第一色值以及所述绿光对应的附加光分配系数,确定饱和度为100%的绿色的第二色值,根据所述第三色值、所述蓝光的第一色值以及所述蓝光对应的附加光分配系数,确定饱和度为100%的蓝色的第二色值。
  14. 根据权利要求8-13中任一项所述的装置,其中,所述确定模块包括:
    将IRE R、IRE G、IRE B任意组合,分别代入以下公式中,找到使得色度坐标(x w,y w) 与所述目标色度坐标之间的距离最小的IRE R、IRE G、IRE B的子模块:
    Figure PCTCN2021135866-appb-100002
    其中,IRE R为红色对应的数据水平值,IRE R为[0,N]范围内的任意值,N为所述数据水平值的最大值;IRE G为绿色对应的数据水平值,IRE G为[0,N]范围内的任意值;IRE B为蓝色对应的数据水平值,IRE B为[0,N]范围内的任意值;X R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的X数据;Y R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的Y数据;Z R(IRE R)为饱和度为所述颜色查找表中、饱和度为IRE R/N的红色的Z数据;X G(IRE G)为饱和度为所述颜色查找表中、饱和度为IRE G/N的绿色的X数据;Y G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Y数据;Z G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Z数据;X B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的X数据;Y B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Y数据;Z B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Z数据;
    将IRE Rmin/N确定为所述红色通道的增益系数、将IRE Gmin/N确定为所述绿色通道增益系数、将IRE Bmin/N确定为蓝色通道的增益系数的子模块,其中,IRE Rmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE R,IRE Gmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE G,IRE Bmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE B
  15. 一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现权利要求1-7中任一项所述方法的步骤。
  16. 一种电子设备,包括:
    存储器,其上存储有计算机程序;
    处理器,用于执行所述存储器中的所述计算机程序,所述处理器执行所述程序时实现以下步骤:
    响应于接收到投影指令,获取所述投影设备的投影光源的目标色度坐标,其中,所述投影设备的投影光源包括红光、绿光、蓝光以及用于提高所述投影设备的投影亮度的附加光;
    根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数;
    根据所述增益系数,调整所述RGB通道的增益。
  17. 根据权利要求16所述的电子设备,所述处理器执行所述程序以实现所述颜色查找表的构建的步骤时,具体包括:
    控制所述投影设备按照任意顺序分别投射红光、绿光、蓝光、白光,并获取每次投射时、所述投影设备所投射的光的第一色值;
    至少根据每一所述第一色值,构建所述颜色查找表。
  18. 根据权利要求17所述的电子设备,其中,所述处理器执行所述程序以实现所述至少根据每一所述第一色值,构建所述颜色查找表的步骤时,具体包括:
    根据每一所述第一色值,判断是否满足RGB混色原理;
    若满足所述RGB混色原理,则根据所述红光的第一色值、所述绿光的第一色值、所述蓝光的第一色值,构建所述颜色查找表。
  19. 根据权利要求18所述的电子设备,其中,所述处理器执行所述程序以实现所述至少根据每一所述第一色值,构建所述颜色查找表的步骤时,具体还包括:
    若不满足所述RGB混色原理,则控制所述投影设备同时投射所述红光、所述绿光、所述蓝光中的任两种,并获取所述投影设备所投射的两种光的混合色值;
    根据所述混合色值和每一所述第一色值,构建所述颜色查找表。
  20. 根据权利要求19所述的电子设备,其中,所述处理器执行所述程序以实现所述根据所述混合色值和每一所述第一色值,构建所述颜色查找表的步骤时,具体包括:
    根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值;
    根据所述饱和度为100%的红色、绿色、蓝色各自的第二色值,构建所述颜色查找表。
  21. 根据权利要求20所述的电子设备,其中,所述处理器执行所述程序以实现所述根据所述混合色值和每一所述第一色值,确定饱和度为100%的红色、绿色、蓝色各自的第二色值的步骤时,具体包括:
    根据每一所述第一色值,确定所述附加光的第三色值;
    根据所述混合色值、所述第三色值以及所述投影设备所投射的两种光中每一种光的第一色值,确定所述红光、所述绿光、所述蓝光各自对应的附加光分配系数;
    根据所述第三色值、所述红光的第一色值以及所述红光对应的附加光分配系数,确定饱和度为100%的红色的第二色值,根据所述第三色值、所述绿光的第一色值以及所述绿光对应的附加光分配系数,确定饱和度为100%的绿色的第二色值,根据所述第三色值、所述蓝光的第一色值以及所述蓝光对应的附加光分配系数,确定饱和度为100%的蓝色的第二色值。
  22. 根据权利要求16-21中任一项所述的电子设备,其中,所述处理器执行所述程序以实现所述根据所述目标色度坐标和预先构建的颜色查找表,确定所述投影设备中RGB通道的增益系数的步骤时,具体包括:
    将IRE R、IRE G、IRE B任意组合,分别代入以下公式中,找到使得色度坐标(x w,y w)与所述目标色度坐标之间的距离最小的IRE R、IRE G、IRE B
    Figure PCTCN2021135866-appb-100003
    其中,IRE R为红色对应的数据水平值,IRE R为[0,N]范围内的任意值,N为所述数据水平值的最大值;IRE G为绿色对应的数据水平值,IRE G为[0,N]范围内的任意值;IRE B为蓝色对应的数据水平值,IRE B为[0,N]范围内的任意值;X R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的X数据;Y R(IRE R)为所述颜色查找表中、饱和度为IRE R/N的红色的Y数据;Z R(IRE R)为饱和度为所述颜色查找表中、饱和度为IRE R/N的红色的Z数据;X G(IRE G)为饱和度为所述颜色查找表中、饱和度为IRE G/N的绿色的X数据;Y G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Y数据;Z G(IRE G)为所述颜色查找表中、饱和度为IRE G/N的绿色的Z数据;X B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的X数据;Y B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Y数据;Z B(IRE B)为所述颜色查找表中、饱和度为IRE B/N的蓝色的Z数据;
    将IRE Rmin/N确定为所述红色通道的增益系数、将IRE Gmin/N确定为所述绿色通道增益系数、将IRE Bmin/N确定为蓝色通道的增益系数,其中,IRE Rmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE R,IRE Gmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE G,IRE Bmin为使得(x w,y w)与所述目标色度坐标之间的距离最小的IRE B
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CN112750171B (zh) * 2021-04-02 2021-08-31 深圳市火乐科技发展有限公司 颜色调节方法、装置、介质及电子设备
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101349856A (zh) * 2007-07-20 2009-01-21 鸿富锦精密工业(深圳)有限公司 投影系统及其色温调整方法
CN101738831A (zh) * 2008-11-25 2010-06-16 三星电子株式会社 校准投影仪的色温的方法和设备
CN105074566A (zh) * 2013-04-05 2015-11-18 Nec显示器解决方案株式会社 投影仪、颜色校正装置和投影方法
CN110267022A (zh) * 2019-06-28 2019-09-20 成都极米科技股份有限公司 投影装置的白平衡校正方法、装置及系统
CN112565727A (zh) * 2021-02-19 2021-03-26 深圳市火乐科技发展有限公司 投影设备控制方法、装置、介质及电子设备
CN112601062A (zh) * 2021-02-22 2021-04-02 深圳市火乐科技发展有限公司 投影设备控制方法、装置、介质及电子设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644875A (zh) * 2009-03-04 2010-02-10 青岛海信电器股份有限公司 色温校正方法及采用此色温校正方法的投影系统
CN106791737B (zh) * 2015-11-25 2021-04-20 中兴通讯股份有限公司 投影画面的颜色校正方法及装置
CN105911807B (zh) * 2016-06-03 2019-03-22 青岛海信电器股份有限公司 激光投影方法及激光投影机
CN108172156A (zh) * 2018-01-18 2018-06-15 安徽三弟电子科技有限责任公司 一种投影仪智能投影控制系统及方法
WO2020014925A1 (zh) * 2018-07-19 2020-01-23 深圳市大疆创新科技有限公司 色温调节方法、控制终端和可移动平台

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101349856A (zh) * 2007-07-20 2009-01-21 鸿富锦精密工业(深圳)有限公司 投影系统及其色温调整方法
CN101738831A (zh) * 2008-11-25 2010-06-16 三星电子株式会社 校准投影仪的色温的方法和设备
CN105074566A (zh) * 2013-04-05 2015-11-18 Nec显示器解决方案株式会社 投影仪、颜色校正装置和投影方法
CN110267022A (zh) * 2019-06-28 2019-09-20 成都极米科技股份有限公司 投影装置的白平衡校正方法、装置及系统
CN112565727A (zh) * 2021-02-19 2021-03-26 深圳市火乐科技发展有限公司 投影设备控制方法、装置、介质及电子设备
CN112601062A (zh) * 2021-02-22 2021-04-02 深圳市火乐科技发展有限公司 投影设备控制方法、装置、介质及电子设备

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