WO2019196433A1

WO2019196433A1 - Method and device for projection picture correction, mobile device, and storage medium

Info

Publication number: WO2019196433A1
Application number: PCT/CN2018/118836
Authority: WO
Inventors: 何伦; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2018-04-12
Filing date: 2018-12-03
Publication date: 2019-10-17
Also published as: CN110378954A

Abstract

The present invention relates to a method for projection picture correction. The method comprises: acquiring orientation information of a mobile device at a specified location, the specified location being identical to the orientation of a projecting device; and determining a correction plan for the projecting device on the basis of the orientation information, the correction plan being used for correcting the picture angle of the projecting device. Also provided in the present invention are a device for projection picture correction, a mobile device, and a storage medium. The method and device for projection picture correction, the mobile device, and the storage medium allow the projection picture correction to be implemented automatically on the basis of the orientation information of the mobile device, are convenient and quick, and provide great user experience.

Description

Projection screen correction method, device, mobile device and storage medium

Technical field

The present invention relates to a projection picture correction technique, and in particular, to a projection picture correction method and apparatus, a mobile device, and a storage medium.

Background technique

A projector is a device that can project a picture onto a screen. It can be connected to a terminal such as a computer or a mobile phone, and project the picture provided by the terminal onto the screen for playback. In order to obtain a clear and regular projection screen, the working parameters of the projector are required to meet certain requirements, and correction is required when the projector does not meet the requirements.

In the prior art, the projection device is manually debugged to determine the optimal projection position, but the difficulty is relatively large, and the debugging is cumbersome, resulting in low debugging efficiency.

Summary of the invention

In view of this, it is necessary to provide a projection screen correction method, apparatus, and storage medium capable of automatically correcting a projection screen.

The present invention provides a projection picture correction method, the method comprising:

Obtaining orientation information of the mobile device at a specified location, the designated location being the same as the location of the projection device;

A correction scheme of the projection device is determined based on the orientation information, the correction scheme for correcting a screen angle of the projection device.

In some embodiments, the orientation information of the mobile device at the designated location is acquired by a gravity sensor.

In some embodiments, the orientation information includes an angle of inclination of the mobile device relative to a horizontal plane.

In some embodiments, the method further comprises transmitting the correction scheme to the projection device over a network to control the projection device to correct a projected picture.

In some embodiments, the network module is a wireless communication network, a local area network or WIFI, Bluetooth.

A mobile device comprising a gravity sensor, a communication device, a memory and a processor, the memory for storing a computer program, the mobile device being communicatively coupled to the projection device by a communication device, the processor performing the Computer program is used to:

Obtaining, from the gravity sensor, orientation information of the mobile device at a specified location, where the designated location is the same as the location of the projection device;

Determining a correction scheme of the projection device according to the orientation information;

The correction scheme is transmitted by the communication device to the projection device to correct a picture of the projection device.

A projection picture correction device comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the computer program being implemented by the processor to implement the projection picture The steps of the calibration method.

A computer readable storage medium having stored thereon a computer program, characterized in that said projection picture correction method is implemented when said computer program is executed by a processor.

Compared with the prior art, the projection picture correction method and apparatus, the mobile device and the storage medium can automatically correct the projection picture according to the angle of the mobile device, and the user experience is high.

DRAWINGS

1 is a schematic structural view of a projection picture correction system according to an embodiment of the present invention.

2 is a schematic structural diagram of a mobile device according to an embodiment of the present invention.

Fig. 3 is a functional block diagram of a projection picture correcting apparatus according to an embodiment of the present invention.

4 is a schematic structural view of a projection apparatus according to an embodiment of the present invention.

FIG. 5 is a flowchart of a projection screen correction method according to an embodiment of the present invention.

Main component symbol description

Mobile device 1

Memory 11

Processor 12

Communication device 13

Projection equipment 2

Main control module 20

Correction module 22

Communication module 24

Projection picture correction device 3

Acquisition module 30

Determination module 32

Correction module 34

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or the component can be present. When a component is considered to "connect" another component, it can be directly connected to another component or possibly a central component. When a component is considered to be "set to" another component, it can be placed directly on another component or possibly with a centered component. The terms "vertical," "horizontal," "left," "right," and the like, as used herein, are for illustrative purposes only.

The system implementations described below are merely illustrative, and the division of the modules or circuits is only a logical function division, and the actual implementation may have another division manner. In addition, it is to be understood that the word "comprising" does not exclude other elements or steps. The plurality of units or devices recited in the system claims may also be implemented by the same unit or device in software or hardware. The first, second, etc. words are used to denote names and do not denote any particular order.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a projection picture correction system according to an embodiment of the present invention. The projection picture correction system includes a mobile device 1 and a projection device 2.

The mobile device 1 can be a computer, a mobile phone, a tablet, a Personal Digital Assistant (PDA), or the like.

The projection device 2 can be any home or office projector, micro/mini/portable projector, and the like.

The mobile device is communicatively coupled to the projection device 2, the mobile device 1 is configured to acquire orientation information of a specified location, and determine a correction scheme of the projection device 2 according to the orientation information. In particular, the mobile device 1 can be placed in the same position as the projection device 2, including the orientation and angle. The orientation information includes an angle of inclination of the mobile device relative to a horizontal plane. The tilt angle can be obtained by an orientation sensor provided on the mobile device 1. The orientation sensor may be any sensor capable of acquiring orientation information of the specified position, such as a gravity sensor, an angle sensor, etc., an electronic compass, a level, a tilt sensor, and the like. The projection device 2 determines a correction scheme based on the tilt angle and corrects the projected picture according to the correction scheme. In some embodiments, the mobile device 1 may also perform a determination of a correction scheme and then send the correction scheme to the projection device to control the projection device to perform a correction scheme. It will be appreciated that the orientation information may also include angles of inclination of the mobile device relative to other reference planes, such as vertical planes and the like.

The designated location is a location where the mobile device 1 has the same orientation information as the projection device 2. In some embodiments, the projection device 2 can be fixed together with the mobile device 1. When the projection device 2 is adjusted, the orientation information of the mobile device 1 can be acquired by the mobile device 1. The orientation information is the orientation information of the projection device 2, and the projection screen of the projection device 2 can be corrected according to the orientation information. In the actual application scenario, when the projection device 2 is installed and debugged, the angle of the projection device 2 is not easy to determine, and can only be adjusted by visual inspection by the user. In the present application, by acquiring the orientation information of the projection device 2 by the mobile device 1, the projection screen of the projection device 2 can be accurately corrected.

The mobile device 1 and the projection device 2 can be communicatively connected by any suitable communication connection, and the communication connection manner can be any suitable wireless or wired connection. Among them, wireless connection methods include Bluetooth, infrared, Wireless Fidelity (WiFi), cellular technology, satellite, and broadcasting. The cellular technology may include mobile communication technologies such as second generation (2G), third generation (3G), fourth generation (4G) or fifth generation (5G). The wired connection method includes a universal serial bus (USB), a High-Definition Multimedia Interface (HDMI) port, a Video Graphics Array (VGA) port, and a controller area network (Controller area network). , CAN), serial and/or other standard network connections, Inter-Integrated Circuit (I2C) buses, etc.

Please refer to FIG. 2, which is a schematic structural diagram of a mobile device according to an embodiment of the present invention. The mobile device 1 includes a memory 11, a processor 12, and a communication device 13.

The memory 11 can be used to store computer programs and/or computer instructions by operating or executing computer programs and/or computer instructions stored in the memory 11 and for recalling stored in the memory 11. The data implements various functions of the mobile device 1 (for example, an audio and video playback function of a mobile phone). The memory 11 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a social function of a mobile phone, etc.), and the like; the storage data area may be stored according to the mobile Data created by the use of device 1 (such as orientation information, audio and video files, etc.). In addition, the memory 11 may include a high-speed random access memory, and may also include a non-volatile memory such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SMC), and a secure digital (Secure Digital, SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid state storage device.

The processor 12 may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, and the processor 12 is a control center of the mobile device 1, and connects various parts of the entire mobile device using various interfaces and lines. .

The mobile device 1 also includes at least one communication device 13.

The communication device 13 may be a wired communication device or a wireless communication device. The wired communication device includes a communication port, such as a universal serial bus (USB), a controller area network (CAN), a serial and/or other standard network connection, and an integrated circuit (Inter- Integrated Circuit, I2C) bus, etc. The wireless communication device can employ any type of wireless communication system, such as Bluetooth, infrared, Wireless Fidelity (WiFi), cellular technology, satellite, and broadcast. The cellular technology may include mobile communication technologies such as second generation (2G), third generation (3G), fourth generation (4G) or fifth generation (5G).

In an embodiment of the invention, the mobile device 1 is configured to transmit the orientation information or correction scheme to the projection device 2 via the communication device 13.

The mobile device 1 may further include a gravity sensor for acquiring orientation information of the mobile device 1, including angle information of a horizontal plane and a vertical plane.

It will be understood by those skilled in the art that the schematic diagram is merely an example of the mobile device 1, and does not constitute a limitation on the mobile device 1, and may include more or less components than those illustrated, or may combine some components. Or different components, for example, the mobile device 1 may also include an input and output device, a display device, and the like according to actual needs. The input and output device can include any suitable input device including, but not limited to, a mouse, a keyboard, a touch screen, or a contactless input, such as gesture input, voice input, and the like. The display device may be a liquid crystal display (LCD), a light emitting diode (LED) display, an Organic Light-Emitting Diode (OLED) or other suitable display. .

In some embodiments, the mobile device 1 may further include a projection picture correction device, which may be a controller independent of the processor 12, or may be integrated in the processor 12.

Please refer to FIG. 3, which is a functional block diagram of a projection picture correction apparatus according to an embodiment of the present invention.

The projection picture correction device 3 includes an acquisition module 30, a determination module 32, and a correction module 34.

The acquiring module 30 is configured to acquire orientation information of the mobile device, where the orientation information includes an inclination angle of the mobile device relative to a horizontal plane.

The determining module 32 is configured to determine a correction scheme of the projection device 2 according to the orientation information, the correction scheme for controlling the projection device to correct a projection screen. In some embodiments, the correction scheme includes determining that the tilt angle of the projection device 2 is the tilt angle of the mobile device 1, and controlling the projection device 2 to rotate such that the tilt angle is zero.

The correction module 34 is configured to control the projection device 2 to correct the projected picture in accordance with the correction scheme. In some embodiments, the correction module 34 can be disposed within the projection device 2, the mobile device 1 transmitting the orientation information to the projection device 2, the correction module of the projection device 2 according to the orientation The information determines a correction scheme and then corrects the projected picture according to the correction scheme.

The functional modules of the projection picture correction device 3 described in the above embodiments may be stored in a computer readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the present invention implements all or part of the flow of the projection picture correction method described in the following embodiments, and may also be completed by a computer program instruction related hardware, and the computer program may be stored in a computer readable In a storage medium, the computer program, when executed by a processor, implements the steps described in the above method embodiments. Wherein, the computer program comprises computer program code, which may be in the form of source code, object code form, executable file or some intermediate form. The computer readable medium may include any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM). , random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media. It should be noted that the content contained in the computer readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in a jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, computer readable media Does not include electrical carrier signals and telecommunication signals.

Please refer to FIG. 4, which is a schematic structural diagram of a projection device 2 according to an embodiment of the present invention.

The projection device 2 includes a main control module 20, a correction module 22, and a communication module 24. The main control module 20 is used to control the operation of the projection device 2. The correction module 22 is configured to correct a projection picture of the projection device according to the orientation information or the correction scheme of the mobile device. The communication module 24 is configured to perform a communication connection with the mobile device. The communication module 24 is a communication module corresponding to the communication device 13 of the mobile device 1, and may also be the wired or wireless communication device described above. The specific correction method refers to the method flow chart shown in FIG. 5.

Step 51: Obtain orientation information of the mobile device at the specified location. The specified location is the same as the orientation of the location where the projection device is currently located, and the orientation information includes a direction or an angle. Specifically, the mobile device is first moved to the same location as the projection device, and then the orientation information of the mobile device is acquired according to the gravity sensor of the mobile device.

Step 52: Determine a calibration scheme of the projection device according to the orientation information. The correction scheme is for controlling the projection device to correct a projected picture. In some embodiments, the correction scheme includes determining that the tilt angle of the projection device 2 is the tilt angle of the mobile device 1, and controlling the projection device 2 to rotate such that the tilt angle is zero.

Step 53: Correct a projection picture of the projection device according to the correction scheme. Specifically, in some embodiments, the preset angle may be rotated by controlling the projection lens of the projection device such that the tilt angle of the projection lens relative to the horizontal plane is zero.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A projection picture correction method, the method comprising:

Obtaining orientation information of the mobile device at a specified location, the designated location being the same as the orientation of the projection device;

A correction scheme of the projection device is determined based on the orientation information, the correction scheme for correcting a screen angle of the projection device.
The method of claim 1 wherein the orientation information of the mobile device at the designated location is obtained by an orientation sensor.
The method of claim 2 wherein said orientation information comprises an angle of inclination of said mobile device relative to a horizontal plane.
The method of claim 1 wherein the method further comprises transmitting the correction scheme to the projection device via a network module to control the projection device to correct a projected picture.
The method according to claim 4, wherein the network module is a wireless communication network, a local area network or WIFI, or Bluetooth.
A mobile device comprising a gravity sensor, a network module, a memory and a processor, the memory for storing a computer program, wherein the mobile device is communicably connected to the projection device via a network module, the processing Executing the computer program for:

Obtaining, from the gravity sensor, orientation information of the mobile device at a specified location, where the designated location is the same as the location of the projection device;

Determining a correction scheme of the projection device according to the orientation information;

The correction scheme is transmitted by the network module to the projection device to correct a picture of the projection device.
The mobile device of claim 6 wherein said orientation information comprises an angle of inclination of said mobile device relative to a horizontal plane.
The mobile device according to claim 6, wherein the network module is a wireless communication network, a local area network or WIFI, or Bluetooth.
A projection picture correction device, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the computer program being The step of implementing the projection picture correction method according to any one of claims 1 to 5 when the processor is executed.
A computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the projection picture correction method according to any one of claims 1-7.