CN114866753A - Projector image quality adjusting method and device and projector - Google Patents
Projector image quality adjusting method and device and projector Download PDFInfo
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- CN114866753A CN114866753A CN202210631002.5A CN202210631002A CN114866753A CN 114866753 A CN114866753 A CN 114866753A CN 202210631002 A CN202210631002 A CN 202210631002A CN 114866753 A CN114866753 A CN 114866753A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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Abstract
The present disclosure provides a method and an apparatus for adjusting image quality of a projector, wherein the method includes: the method comprises the steps of receiving characteristic parameters of a projection receiving surface of a projector, receiving light parameters of a projection environment of the projector, and adjusting image quality parameters of the projector according to the characteristic parameters and the light parameters. Through the method and the device, the problem that the image quality effect of the projector adjusted under the laboratory environment in the correlation technique is poor is solved, and the purpose of improving the image quality effect of the projector is achieved.
Description
Technical Field
The invention relates to the technical field of projectors, in particular to a projector image quality adjusting method and device and a projector.
Background
The image quality adjustment mode of the existing projector is as follows: projecting an image on a standard projection curtain or a wall surface of a laboratory, and then adjusting image adjustment parameters on a System On Chip (SOC) to enable the image adjustment parameters to be close to the output effect of a standard prototype.
However, the scene of the projector is very complex, users usually use the projector in family living rooms or rooms, no standard curtain exists, only the wall surface is used as a projection receiving surface, and some family wall surfaces are gray and some are pearl white, so that the projection effect seen by different family users and the standard curtain of a laboratory are greatly different. In addition, at different time intervals, the family environment light is different, for example, the morning light has a red tendency, the noon light is strongest, the color feeling is weakest, the sunset light is coldest, the night light is darker, and the like. Therefore, the image quality adjusting method for the conventional laboratory obviously has defects, and the image quality effect of the projector adjusted in the laboratory environment cannot enable a user to achieve the optimal viewing effect.
At present, no effective solution is provided aiming at the problem of poor image quality effect of a projector adjusted under a laboratory environment in the related art.
Disclosure of Invention
The present disclosure is directed to provide a method and an apparatus for adjusting image quality of a projector, an electronic device, and a computer-readable storage medium, to solve at least the problem of poor image quality of a projector adjusted in a laboratory environment in the related art.
According to an aspect of the present disclosure, there is provided a method for adjusting image quality of a projector, including:
characteristic parameters of a projection receiving surface of the projector are received,
receiving light parameters of a projection environment of the projector,
and adjusting the image quality parameters of the projector according to the characteristic parameters and the light parameters.
According to another aspect of the present disclosure, there is provided a projector image quality adjustment apparatus including:
a first receiving unit for receiving characteristic parameters of a projection receiving surface of the projector,
a second receiving unit for receiving light parameters of a projection environment of the projector,
and the first adjusting unit is used for adjusting the image quality parameters of the projector according to the characteristic parameters and the light parameters.
According to another aspect of the present disclosure, there is provided a projector including:
the front camera is used for extracting characteristic parameters of a projection receiving surface;
the light sensing module is used for monitoring light parameters of a projection environment;
and the processing module is used for executing the projector image quality adjusting method in the disclosure.
According to another aspect of the present disclosure, there is provided an electronic device including:
a processor; and
a memory for storing a program, wherein the program is stored in the memory,
wherein the program includes instructions that, when executed by the processor, cause the processor to perform the projector image quality adjustment method of the present disclosure.
According to another aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the projector image quality adjustment method in the present disclosure.
According to one or more technical schemes provided in the embodiment of the disclosure, the characteristic parameters of the projection receiving surface are extracted through the front camera of the projector, the light sensation module monitors the light parameters of the projection environment in real time, and then the image quality parameters of the projector are adjusted according to the characteristic parameters and the light parameters, so that the problem of poor image quality effect of the projector adjusted under a laboratory environment in the related art can be solved, the image quality effect of the projector is improved, and the purpose of viewing experience of a user is further improved.
Drawings
Further details, features and advantages of the disclosure are disclosed in the following description of exemplary embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic diagram of an example projector in which the projector picture quality adjustment methods described herein may be implemented according to an example embodiment of the present disclosure;
fig. 2 shows a schematic diagram of a light sensing module monitoring position in a projector according to an exemplary embodiment of the present disclosure;
fig. 3 illustrates a flowchart of projector picture quality parameter adjustment according to an exemplary embodiment of the present disclosure;
fig. 4 illustrates a flowchart of a projector picture quality adjustment method according to an exemplary embodiment of the present disclosure;
fig. 5 shows a schematic block diagram of a projector picture quality adjustment apparatus according to an exemplary embodiment of the present disclosure;
FIG. 6 illustrates a block diagram of an exemplary electronic device that can be used to implement embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description. It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information.
Aspects of the present disclosure are described below with reference to the accompanying drawings.
Exemplary embodiments of the present disclosure provide a projector. As shown in fig. 1, the projector includes:
the front camera 101 is used for extracting characteristic parameters of a projection receiving surface;
the light sensing module 102 is used for monitoring light parameters of a projection environment;
a processing module 103, configured to execute the projector image quality adjustment method described in this disclosure;
as shown in fig. 1, the projector further includes: and a lens module 104 for outputting the projected image.
In the exemplary embodiment of the present disclosure, the front camera 101 and the light sensing module 102 are both facing the projection receiving surface, which is beneficial to more accurately collecting the related data. The positions of the projection receiving surface in the X and Y directions correspond to the resolution of the image output by the projection lens module one by one, and the periphery of the projection receiving surface (i.e., the detection surface shown in fig. 1) also needs to be detected correspondingly.
The front-facing camera 101 may be a camera array with a plurality of different functions, such as collecting black and white colors, and performing wide-angle shooting, and the like, and the present disclosure is not limited thereto, and the function of the front-facing camera is to obtain information data required by a wall surface, and to provide the information data to a processing module 103 at the rear end, for example, an SOC, for corresponding analysis and processing.
The light sensing module 102 can be arranged with N sensors of the same type according to the actual accuracy requirement, and on the front surface of the projector, the light sensing module is used for obtaining the light intensity data of the wall surface and performing corresponding analysis processing on the SOC at the rear end. The monitoring position of the light-sensing module 102 can be as shown in fig. 2.
The projector can utilize the front camera of the projector to extract the characteristic parameters of a projection receiving surface, and simultaneously utilizes the light sensing module to monitor in real time to obtain the light parameters of the projection environment. And the projection SOC adjusts the image quality parameters according to the obtained characteristic parameters and light parameters, so that the projection outputs the most suitable image quality effect, and the user obtains the best experience.
Specifically, as shown in fig. 3, the projector image quality adjustment process includes the following steps:
step S301, starting up a projector;
step S302, a front camera module and a light sensing module collect wall surface characteristic parameters;
step S303, outputting a pure white picture by the lens module 30ms before the startup LOGO is output;
step S304, obtaining the area information of the projection receiving surface and the characteristic parameters of each pixel point through a pure white picture;
step S305, SOC analysis parameters and image quality parameter adjustment;
step S306, in the projection process, the light sensing module monitors the light intensity in real time, and the SOC adjusts image quality parameters in real time;
in step S307, the SOC outputs the best image quality effect.
At the startup stage of the projector, the front camera and the light sensing module of the projector shoot and scan the wall surface to acquire the characteristic data of the wall surface. The color temperature parameter, the color coordinate parameter and other data of each pixel point of the wall surface can be known by shooting images through the front camera, and the light intensity and other parameter data of the wall surface can be obtained through the light sensing module.
Before the projector is started up, a pure white picture is output, and the time is about 30ms (the time is obtained only according to the current SOC and the experience of the image processing capacity of the light sensing module, the stronger the device processing capacity is, the shorter the time is actually), so that the area of a projection receiving surface and pixel point characteristic parameter data corresponding to the projection receiving surface can be determined by the front camera and the light sensing module through the pure white picture without influencing the use of a user. Then, the SOC of the projector compares the characteristic parameters of each pixel point of the projection receiving surface, such as color temperature parameters, color coordinate parameters, light intensity parameters and the like, output by the front camera and the light sensing module with the standard parameters of a laboratory, performs corresponding compensation, and adjusts image quality parameters to enable the projector to output the best effect.
In the projecting process of the projector, in different time periods, sunlight can be obliquely emitted to the wall surface through a window or a balcony, so that the color temperature and light intensity of the wall surface are inconsistent with the time point of starting the projector, and the color difference condition is caused. Since the projection receiving surface is in a normal playing picture, the fluctuation of the characteristic parameters of the receiving surface is very large, and corresponding analysis processing cannot be performed, so that the data of the projection receiving surface does not need to be paid attention. However, due to the characteristic that sunlight is obliquely emitted into the room from a window or a balcony, the light intensity is in relatively uniform transition from one side of the boundary to the other side, and by utilizing the characteristic, a corresponding operation model can be made according to experience to carry out compensation operation. As shown in fig. 2, where (N, N) represents the pixel point in the nth row and the nth column. L (N, N) is the light intensity of the image point in the Nth row and the Nth column. Taking the X-axis direction as an example, if the light ray is emitted from the negative semi-axis direction of the X-axis, the light intensity compensation of the projection receiving surface can be obtained by a linear operation model, which continuously increases Δ L from left to right, according to the following formula:
ΔL(1，N/2)＝α(L(-1，N/2)-L(1，N/2))+β(L(1，N/2)-L(N+1,N/2))
where α, β are empirical coefficients. For example, α and β may both be 0.5, or α may be 0.3 and β may be 0.6.
It should be noted that the above processing, analyzing, and compensating operation model is only one pixel point listed, and in practical application, the model is more complex and complete, and the disclosure is not described in detail.
By integrating the starting and real-time playing monitoring processes, the SOC of the projector is processed and analyzed, so that image quality parameters such as color temperature, color coordinates, saturation, luminous flux of the projector and the like of pixel points of each frame of image are controlled and adjusted, and the optimal projection effect output is achieved.
The disclosed exemplary embodiment provides a projector image quality adjusting method. The method may be performed by a processing module in the projector.
Fig. 4 shows a flowchart of a projector picture quality adjustment method according to an exemplary embodiment of the present disclosure, and as shown in fig. 4, the method includes the steps of:
step S401, receiving characteristic parameters of a projection receiving surface of a projector;
step S402, receiving light parameters of the projection environment of the projector;
step S403, adjusting image quality parameters of the projector according to the characteristic parameters and the light parameters.
Through the steps, the problem that the image quality effect of the projector adjusted under the laboratory environment in the correlation technique is poor can be solved, the image quality effect of the projector is improved, and the purpose of viewing experience of a user is further improved.
In some embodiments, during a startup phase of the projector, the projector outputs a white image, wherein the method for adjusting the image quality of the projector includes:
acquiring real-time parameters of each pixel point on the projection receiving surface through the white picture, wherein the real-time parameters comprise: the characteristic parameters of each pixel point on the projection receiving surface and the light parameters of each pixel point on the projection receiving surface;
and comparing the real-time parameters with the laboratory standard parameters, and adjusting the image quality parameters of the projector according to the comparison result.
In some embodiments, in a projection process of a projector, in a case where a light ray enters from a direction of a negative semi-axis of an abscissa axis of the projection receiving surface, the projector image quality adjustment method includes:
acquiring the current light intensity of each pixel point on the projection receiving surface;
calculating the light intensity compensation value of each pixel point;
and adjusting the optical fiber parameter of each pixel point according to the light intensity compensation value.
In some embodiments, calculating the light intensity compensation value for each pixel point comprises:
calculating the light intensity of each pixel point according to the following formula:
ΔL(1，N/2)＝α(L(-1，N/2)-L(1，N/2))+β(L(1，N/2)-L(N+1，N/2))
wherein, (N, N) is the pixel point of the Nth line and the Nth column, L (N, N) is the light intensity of the image point of the Nth line, DeltaL (N, N) is the light intensity compensation value of the image point of the Nth line and the Nth column, and alpha and beta are empirical coefficients.
It should be noted that the steps illustrated in the above-described flow diagrams or in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flow diagrams, in some cases, the steps illustrated or described may be performed in an order different than here.
The exemplary embodiment of the present disclosure further provides an apparatus for adjusting image quality of a projector, where the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the descriptions already given are omitted. As used hereinafter, the terms "module," "unit," "subunit," and the like may implement a combination of software and/or hardware for a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a schematic block diagram illustrating a projector picture quality adjustment apparatus according to an exemplary embodiment of the present disclosure, and as shown in fig. 5, the apparatus includes:
a first receiving unit 51 for receiving characteristic parameters of a projection receiving surface of the projector;
a second receiving unit 52, configured to receive a light parameter of a projection environment of the projector;
the first adjusting unit 53 is configured to adjust image quality parameters of the projector according to the characteristic parameters and the light parameters.
In some embodiments, during a startup phase of the projector, the projector outputs a white image, wherein the apparatus for adjusting image quality of the projector includes:
a first obtaining unit, configured to obtain a real-time parameter of each pixel point on the projection receiving surface through the white picture, where the real-time parameter includes: the characteristic parameters of each pixel point on the projection receiving surface and the light parameters of each pixel point on the projection receiving surface;
and the second adjusting unit is used for comparing the real-time parameters with the laboratory standard parameters and adjusting the image quality parameters of the projector according to the comparison result.
In some embodiments, in a case where a light ray enters from a direction of a negative semi-axis of an abscissa axis of the projection receiving surface during projection by the projector, the apparatus for adjusting image quality of the projector includes:
the second acquisition unit is used for acquiring the current light intensity of each pixel point on the projection receiving surface;
the calculating unit is used for calculating the light intensity compensation value of each pixel point;
and the third adjusting unit is used for adjusting the optical fiber parameter of each pixel point according to the light intensity compensation value.
In some embodiments, the calculating unit is configured to calculate the light intensity of each pixel according to the following formula:
ΔL(1，N/2)＝α(L(-1，N/2)-L(1，N/2))+β(L(1，N/2)-L(N+1，N/2))
wherein, (N, N) is the pixel point of the Nth line and the Nth column, L (N, N) is the light intensity of the image point of the Nth line, DeltaL (N, N) is the light intensity compensation value of the image point of the Nth line and the Nth column, and alpha and beta are empirical coefficients.
The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.
An exemplary embodiment of the present disclosure also provides an electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor. The memory stores a computer program executable by the at least one processor, the computer program, when executed by the at least one processor, is for causing the electronic device to perform a method according to an embodiment of the disclosure.
The disclosed exemplary embodiments also provide a non-transitory computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor of a computer, is adapted to cause the computer to perform a method according to an embodiment of the present disclosure.
The exemplary embodiments of the present disclosure also provide a computer program product comprising a computer program, wherein the computer program, when executed by a processor of a computer, is adapted to cause the computer to perform a method according to an embodiment of the present disclosure.
Referring to fig. 6, a block diagram of a structure of an electronic device 600, which may be a server or a client of the present disclosure, which is an example of a hardware device that may be applied to aspects of the present disclosure, will now be described. Electronic device is intended to represent various forms of digital electronic computer devices, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the disclosure described and/or claimed herein.
As shown in fig. 6, the electronic device 600 includes a computing unit 601, which can perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM)602 or a computer program loaded from a storage unit 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data required for the operation of the device 600 can also be stored. The calculation unit 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.
Various components in the electronic device 600 are connected to the I/O interface 605, including: an input unit 606, an output unit 607, a storage unit 608, and a communication unit 609. The input unit 606 may be any type of device capable of inputting information to the electronic device 600, and the input unit 606 may receive input numeric or character information and generate key signal inputs related to user settings and/or function control of the electronic device. Output unit 607 may be any type of device capable of presenting information and may include, but is not limited to, a display, speakers, a video/audio output terminal, a vibrator, and/or a printer. The storage unit 608 may include, but is not limited to, a magnetic disk, an optical disk. The communication unit 609 allows the electronic device 600 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunications networks, and may include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication transceiver, and/or a chipset, such as a bluetooth device, a WiFi device, a WiMax device, a cellular communication device, and/or the like.
The computing unit 601 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of the computing unit 601 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The calculation unit 601 performs the respective methods and processes described above. For example, in some embodiments, the projector image quality adjustment method may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as the storage unit 608. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 600 via the ROM 602 and/or the communication unit 609. In some embodiments, the computing unit 601 may be configured to perform the projector picture quality adjustment method in any other suitable manner (e.g., by means of firmware).
Program code for implementing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
As used in this disclosure, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
Claims (10)
1. A method for adjusting image quality of a projector is characterized by comprising the following steps:
receiving characteristic parameters of a projection receiving surface of a projector;
receiving light parameters of a projection environment of the projector;
and adjusting the image quality parameters of the projector according to the characteristic parameters and the light parameters.
2. The method for adjusting the image quality of the projector according to claim 1, wherein the projector outputs a white picture at the startup stage of the projector, and the method for adjusting the image quality of the projector comprises:
acquiring real-time parameters of each pixel point on the projection receiving surface through the white picture, wherein the real-time parameters comprise: the characteristic parameters of each pixel point on the projection receiving surface and the light parameters of each pixel point on the projection receiving surface;
and comparing the real-time parameters with the laboratory standard parameters, and adjusting the image quality parameters of the projector according to the comparison result.
3. The method for adjusting the image quality of a projector according to claim 1, wherein the method for adjusting the image quality of a projector, when light is incident from a direction of a negative semi-axis of an abscissa axis of the projection receiving surface during projection by the projector, comprises:
acquiring the current light intensity of each pixel point on the projection receiving surface;
calculating the light intensity compensation value of each pixel point;
and adjusting the optical fiber parameter of each pixel point according to the light intensity compensation value.
4. The method as claimed in claim 3, wherein calculating the intensity compensation value for each pixel point comprises:
calculating the light intensity of each pixel point according to the following formula:
ΔL(1，N/2)＝α(L(-1，N/2)-L(1，N/2))+β(L(1，N/2)-L(N+1，N/2))
wherein, (N, N) is the pixel point of the Nth line and the Nth column, L (N, N) is the light intensity of the image point of the Nth line, DeltaL (N, N) is the light intensity compensation value of the image point of the Nth line and the Nth column, and alpha and beta are empirical coefficients.
5. An image quality adjusting apparatus for a projector, comprising:
the first receiving unit is used for receiving the characteristic parameters of the projection receiving surface of the projector;
the second receiving unit is used for receiving the light parameters of the projection environment of the projector;
and the first adjusting unit is used for adjusting the image quality parameters of the projector according to the characteristic parameters and the light parameters.
6. The apparatus of claim 5, wherein the projector outputs a white picture during a projector startup phase, wherein the apparatus comprises:
a first obtaining unit, configured to obtain a real-time parameter of each pixel point on the projection receiving surface through the white picture, where the real-time parameter includes: the characteristic parameters of each pixel point on the projection receiving surface and the light parameters of each pixel point on the projection receiving surface;
and the second adjusting unit is used for comparing the real-time parameters with the laboratory standard parameters and adjusting the image quality parameters of the projector according to the comparison result.
7. The apparatus for adjusting the picture quality of a projector according to claim 5, wherein the apparatus for adjusting the picture quality of a projector, in a case where a light ray is incident from a direction of a negative semi-axis of an abscissa axis of the projection receiving surface during projection by the projector, comprises:
the second acquisition unit is used for acquiring the current light intensity of each pixel point on the projection receiving surface;
the calculating unit is used for calculating the light intensity compensation value of each pixel point;
and the third adjusting unit is used for adjusting the optical fiber parameter of each pixel point according to the light intensity compensation value.
8. A projector, characterized by comprising:
the front camera is used for extracting characteristic parameters of a projection receiving surface;
the light sensing module is used for monitoring light parameters of a projection environment;
a processing module for executing the projector image quality adjustment method according to any one of claims 1 to 4.
9. An electronic device, comprising:
a processor; and
a memory for storing a program, wherein the program is stored in the memory,
wherein the program comprises instructions which, when executed by the processor, cause the processor to carry out the projector picture quality adjustment method according to any one of claims 1-4.
10. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the projector image quality adjustment method according to any one of claims 1 to 4.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101620365A (en) * | 2008-07-04 | 2010-01-06 | 精工爱普生株式会社 | Projector and method for controlling projector |
| CN203012330U (en) * | 2012-10-09 | 2013-06-19 | 索拓(青岛)显示设备有限公司 | Brightness automatic adjustment device for projector |
| CN110611800A (en) * | 2019-09-29 | 2019-12-24 | 深圳市火乐科技发展有限公司 | Projection adjusting method and device, projector and projection system |
| CN112584115A (en) * | 2020-12-10 | 2021-03-30 | 成都极米科技股份有限公司 | Projection brightness self-adaption method, device, equipment and storage medium |
| CN112738488A (en) * | 2020-12-23 | 2021-04-30 | 深圳市火乐科技发展有限公司 | Projection equipment control method, device, medium and electronic equipment |
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| CN101620365A (en) * | 2008-07-04 | 2010-01-06 | 精工爱普生株式会社 | Projector and method for controlling projector |
| CN203012330U (en) * | 2012-10-09 | 2013-06-19 | 索拓(青岛)显示设备有限公司 | Brightness automatic adjustment device for projector |
| CN110611800A (en) * | 2019-09-29 | 2019-12-24 | 深圳市火乐科技发展有限公司 | Projection adjusting method and device, projector and projection system |
| CN112584115A (en) * | 2020-12-10 | 2021-03-30 | 成都极米科技股份有限公司 | Projection brightness self-adaption method, device, equipment and storage medium |
| CN112738488A (en) * | 2020-12-23 | 2021-04-30 | 深圳市火乐科技发展有限公司 | Projection equipment control method, device, medium and electronic equipment |
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