WO2020124562A1

WO2020124562A1 - Image processing method, display device and computer-readable storage medium

Info

Publication number: WO2020124562A1
Application number: PCT/CN2018/122695
Authority: WO
Inventors: 李友
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2020-06-25
Also published as: CN113170087A

Abstract

Disclosed are an image processing method, a display device and a computer-readable storage medium. The method comprises: acquiring a coordinate system corresponding to an image to be displayed (100); determining whether the acquired coordinate system corresponding to the image to be displayed is a three-dimensional polar coordinate system corresponding to the display device (102); if the acquired coordinate system is not the three-dimensional polar coordinate system, converting the acquired coordinate system into the three-dimensional polar coordinate system, and obtaining the converted image to be displayed (104); and performing control to display the converted image to be displayed on the display device (106). According to the embodiments of the present disclosure, an image to be displayed that differs from the coordinate system corresponding to the display device can be converted for display, facilitating display on a curved display screen.

Description

Image processing method, display device and computer readable storage medium

Technical field

The present application relates to the technical field of data processing, and in particular, to an image processing method, a display device, and a computer-readable storage medium.

Background technique

In the current market, robots generally add a display screen to their head positions as a human-computer interaction interface. The head of the existing robot is roughly spherical. Therefore, in order to adapt the display screen to the spherical head of the robot, a spherical curved display screen may be provided on the head of the robot. However, the existing image pixels are generally adapted to the Cartesian coordinate system. For the display screen with a spherical surface, if the image of the Cartesian coordinate system is directly displayed on the display screen with a spherical surface, it may cause deformation when the image is displayed The phenomenon reduces the user experience.

Summary of the invention

The technical problem to be solved by the present application is to provide an image processing method, display device, and computer-readable storage medium that improve user experience.

The embodiments of the present application provide an image processing method, a display device, and a computer-readable storage medium, which can be conveniently displayed on a curved display screen.

The image processing method provided in the first aspect of the present application includes:

Obtain the coordinate system corresponding to the image to be displayed;

Determine whether the coordinate system corresponding to the acquired image to be displayed is the three-dimensional polar coordinate system corresponding to the display device;

If the acquired coordinate system is not the three-dimensional polar coordinate system, convert the acquired coordinate system to the three-dimensional polar coordinate system, and obtain the converted image to be displayed;

Controlling to display the converted image to be displayed on the display device.

The display device provided in the second aspect of the present application includes:

A spherical curved screen, the pixels on the spherical curved screen have spherical polar coordinate values corresponding to a three-dimensional polar coordinate system;

A processor, connected to the spherical curved screen, the processor is used to obtain a coordinate system corresponding to the image to be displayed; the processor is also used to determine whether the coordinate system corresponding to the acquired image to be displayed is the same as the A three-dimensional polar coordinate system; if the acquired coordinate system is not the three-dimensional polar coordinate system, the processor is used to convert the acquired coordinate system to the three-dimensional three-dimensional polar coordinate system and obtain the converted The image to be displayed; the processor is also used to control displaying the converted image to be displayed on the spherical curved screen.

A computer-readable storage medium provided in a third aspect of the present application stores computer instructions of an image processing method in the computer-readable storage medium. The computer instructions of the image processing method are executed by a processor to implement the above-mentioned image processing method.

Compared with the prior art, the image processing method, the display device and the computer-readable storage medium of the present application can convert the image to be displayed which is different from the coordinate system corresponding to the display device before the image is displayed, so that the converted The image to be displayed is the same as the coordinate system corresponding to the display, and the converted image to be displayed can be displayed on the spherical curved screen, which is helpful to reduce the difference between the coordinate system corresponding to the image to be displayed and the coordinate system corresponding to the display device At the same time, the appearance of the display distortion improves the user experience.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without paying any creative labor, other drawings can be obtained based on these drawings.

FIG. 1 is a schematic diagram of a spherical curved screen in a three-dimensional Cartesian coordinate system in an embodiment of the present application.

FIG. 2 is a schematic diagram of the projection of the spherical curved screen in FIG. 1 on the XY plane.

3 is a flowchart of steps in an image processing method in an embodiment of the present application.

4 is a schematic diagram of a hardware structure of a display device in an embodiment of the present application.

Specific examples

In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms “first” and “second” in the description and claims of the present application and the above drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

Reference herein to "embodiments" means that the features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments.

It should be noted that the following method embodiments are described as a series of action combinations for the sake of simple description, but those skilled in the art should know that this application is not limited by the described action sequence, Because according to this application, certain steps can be performed in other orders or simultaneously.

In order to better understand the embodiments of the present application, the display principle of the spherical curved screen in the embodiments of the present application is first introduced.

Please refer to FIG. 1, which is a schematic diagram of a spherical curved screen in a three-dimensional Cartesian coordinate system in an embodiment of the present application. For a spherical curved screen set in a preset area on a spherical surface (understandably, the spherical curved screen is a flexible display screen), any point in the preset area to the origin of the three-dimensional Cartesian coordinate system (the spherical surface The distance of the center of the ball) is equal. The three-dimensional Cartesian coordinate system may include an X axis, a Y axis (such as the positive direction of the X axis and an angle between the positive directions of the Y axis of 90 degrees) located on the same plane passing through the origin O, and perpendicular to the XY The Z axis of the plane and passing through the origin O. For a spherical curved screen, the coordinate values of the points on it can be represented by three-dimensional Cartesian coordinates, but also by spherical polar coordinates (or three-dimensional polar coordinates). Among them, three-dimensional Cartesian coordinates and spherical polar coordinates Can be converted between each other.

For example, for the coordinate value of any point N′ on the spherical surface in the three-dimensional Cartesian coordinate system is expressed as (x, y, z), assuming that the distance from the point N′ to the coordinate origin O of the three-dimensional Cartesian coordinate system is R, then The spherical polar coordinates of point N′ can be expressed as

among them,

Is the azimuth angle, which represents the angle between the projection point N of the point N′ on the XY plane of the three-dimensional Cartesian coordinate system and the coordinate origin O between the line O and the positive direction of the X axis; θ is the elevation angle, indicating that the point N′ is The angle between the line ON′ between the point N′ on the three-dimensional Cartesian coordinate system and the coordinate origin O and the positive direction of the Z axis. The coordinate values (x, y, z) of the three-dimensional Cartesian coordinate system corresponding to the point N′ on the spherical surface screen, x represents the connection between the projection point N of the point N′ on the XY plane and the coordinate origin O The number of pixel points projected on the X axis x, y represents the connection point between the projection point N of the point N′ on the XY plane and the coordinate origin O. The number of pixel points projected on the Y axis y, z represents the point N′ at The number z of pixels between the coordinate origin O and the projection on the Z axis. In other embodiments, for the coordinate values (x, y, z) of the three-dimensional Cartesian coordinate system corresponding to the point N′ on the spherical curved screen, x represents the projection point N of the point N′ on the XY plane and the coordinate origin O The distance between the line ON projected on the X axis x, y represents the distance between the projection point N of the point N′ on the XY plane and the coordinate origin O, the distance y projected on the Y axis, z represents the point N′ The distance z from the coordinate origin O when projecting on the Z axis.

For the conversion of point N′ (x, y, z) between three-dimensional Cartesian coordinates and spherical polar coordinates, the following formula (1) can be used for conversion:

According to the laws of geometry:

Where R represents the number R or the distance R of the pixel points on the line ON between the projection point N of the arbitrary point N′ on the spherical surface on the XY plane of the three-dimensional Cartesian coordinate system and the coordinate origin O.

In this embodiment, the spherical curved screen may include several pixels, and the coordinate value of each pixel may be defined by spherical polar coordinates. For example, each pixel on the spherical curved screen may be passed

To express.

As shown in Figure 1, for the triangle N′ON, the straight line N′N is parallel to the Z axis, and θ is equal to ∠NN′O. According to the sine theorem:

Substituting formula (3) into formula (1) can derive the following expression:

Please refer to FIG. 2 together, which is a schematic diagram of the projection of the spherical curved screen on the XY plane. In this embodiment, when the spherical curved screen is projected on the XY plane, a circular area may be formed, wherein the circular area has a center O and a radius r. For any point N in the circular area, two-dimensional polar coordinates can be used

To represent, where r represents the number r or distance r of pixel points between any point N in the circular area and the coordinate origin O;

It is the azimuth angle, which represents the angle between the line ON between the arbitrary point N and the coordinate origin O and the positive direction of the X axis.

In addition, the coordinate value of any point N in the two-dimensional Cartesian coordinate system XY can be expressed as (x, y), and the coordinate value in each two-dimensional Cartesian coordinate system has a corresponding two-dimensional polar coordinate representation

Among them, the transformation between two-dimensional Cartesian coordinates and two-dimensional polar coordinates can be expressed as follows:

According to the laws of geometry:

Therefore, the coordinate value of the three-dimensional polar coordinate system corresponding to each pixel on the spherical curved screen

Can be mapped to the coordinate value of the corresponding two-dimensional polar coordinate system by formula (3)

Then the coordinate value of the two-dimensional polar coordinate system is calculated by formula (5)

Map to the coordinate values (x, y) of the two-dimensional Cartesian coordinate system.

Please refer to FIG. 3, which shows a flowchart of steps of an image processing method in an embodiment of the present application. The image processing method includes steps:

Step 100: Obtain the coordinate system corresponding to the image to be displayed.

In this embodiment, the type of image to be displayed may include a vector diagram or a bitmap.

When the type of the image to be displayed is a bitmap, the image to be displayed may include several pixels, and the coordinate value of each pixel may correspond to a two-dimensional Cartesian coordinate system. For example, for an image to be displayed with a resolution of 1920*1080, the coordinate values of the two-dimensional Cartesian system corresponding to the pixels it contains can be expressed as (0, 0), (0, 1)... (0, 1079 )...(1,0), (1,2)...(1,1079)...(1919,1079). The file format of the bitmap can include bmp, jpeg, gif, etc.

When the type of the image to be displayed is a vector diagram, the image to be displayed may include one or more coordinate points and corresponding vector graphics, where the vector graphics may be provided with corresponding identification information. For example, the vector graphics can be rectangular, straight line, circle, ellipse, etc., the identification information of the rectangular vector graphics can be expressed as <rect>, the identification information of the circular vector graphics can be expressed as <circle>, the identification of the elliptical vector graphics The information can be expressed as <ellipse>, and the identification information of the linear vector graphic can be expressed as <line>. The file format of the vector diagram may include bw, ai, cdr, dwg, svg, etc.

In an embodiment, when the type of the image to be displayed is a vector diagram, the image to be displayed may further include attribute information corresponding to the vector graphic. For example, for a rectangular vector graphic, the content of the vector file may include <rect=x="50"y=""20"width="150"height="150"/>, where the coordinate point is (x , Y), the parameter x indicates the left position of the rectangle, and the parameter y indicates the top position of the rectangle; the attribute information may include width and height, where width indicates attribute information on the width of the rectangle, and height indicates attribute information on the height of the rectangle. In an embodiment, the content of the circular vector image may include <circle=cx="300"cy="150"r="40"/>, where the coordinate point (cx,cy) and the attribute information are r.

For linear vector graphics, the content of the vector file may include <line x1="0" y1="0" x2="200" y2="200"/>. The coordinate values of the coordinate points of the straight line include (x1, y1) and (x2, y2), where the parameter x1 of the coordinate value represents the starting coordinate of the straight line on the x axis, the parameter y1 represents the starting coordinate of the straight line on the Y axis, and the parameter x2 represents The end coordinate of the straight line on the X axis. The parameter y2 represents the end coordinate of the straight line on the Y axis. Linear vector graphics have no attribute information.

In this embodiment, the coordinate value of the coordinate point is the coordinate of the vertex of the vector graphic. For example, the coordinates of the vertices of the rectangular vector graphics are the coordinate values (50, 20) corresponding to the coordinate points (x, y); the coordinates of the vertices of the circular vector graphics are corresponding to the coordinate points (cx, cy) The coordinate value of (300, 150); the coordinates of the vertices of the vector graphics of the straight line are the coordinate values corresponding to the coordinate points (x1, y1) and (x2, y2), respectively (0, 0) and (200, 200 ).

Therefore, the vector file can be parsed to obtain the identification information corresponding to the vector graphics contained in the vector file. When parsing a vector file, the corresponding vector graphics, coordinate points and/or attribute information can be obtained by keyword matching and/or regular expression.

In an embodiment, the coordinate system corresponding to the image to be displayed may be different from the two-dimensional Cartesian coordinate system. For example, the coordinate system corresponding to the image to be displayed may be a two-dimensional polar coordinate system, and the coordinate values of the pixels or coordinate points of the image to be displayed may be expressed as

The coordinate system corresponding to the image to be displayed can also be three-dimensional polar coordinates (or spherical polar coordinates), and the coordinate values of the pixels or coordinate points of the image to be displayed can be expressed as

For the coordinate values of the two-dimensional Cartesian coordinate system, the coordinate values of the pixels or coordinate points of the image to be displayed are natural numbers (0, 1, ..., N). For the coordinate values of the two-dimensional polar coordinate system

In terms of,

The general value is 0 ~ 2π, r can be a value not less than 0, where r is a natural number when r represents the number of pixels; when r represents the distance, it can also be converted to the pixel representation . For the coordinate values of the three-dimensional polar coordinate system

In terms of,

The value of can be generally 0 to 2π, the value of θ can range from 0 to π, and R can be a value not less than 0, where when r represents the number of pixels, r is a natural number.

Therefore, the type of the coordinate system of the image to be displayed can be determined according to the coordinate value of the image to be displayed. For example, when the parameters of the coordinate values of the pixels or coordinate points of the image to be displayed are both angle values or at least two parameters are angle values, it can be determined that the coordinate system corresponding to the image to be displayed is a three-dimensional polar coordinate system; When the parameter of the coordinate value of the pixel point or coordinate point of the image includes a parameter of an angle value and a parameter of a natural value, it can be determined that the coordinate system corresponding to the image to be displayed is a two-dimensional polar coordinate system; when the image to be displayed When the parameters of the coordinate values of the pixel points or the coordinate points are all natural values or parameters that do not contain angle values, it can be determined that the coordinate system corresponding to the image to be displayed is a two-dimensional Cartesian coordinate system.

Step 102: Determine whether the obtained coordinate system corresponding to the image to be displayed is a three-dimensional polar coordinate system corresponding to the display device; if the obtained coordinate system is not a three-dimensional polar coordinate system, perform step 104; if The obtained coordinate system is the three-dimensional polar coordinate system, and step 108 is executed.

In this embodiment, in order to enable the display or software development of the spherical curved screen, the coordinate system corresponding to the spherical curved screen is a three-dimensional polar coordinate system. Therefore, when the coordinate system corresponding to the image to be displayed is a two-dimensional Cartesian system or a two-dimensional polar coordinate system, it can be determined that the coordinate system corresponding to the image to be displayed is different from the three-dimensional polar coordinate system corresponding to the display device. When the coordinate system corresponding to the image to be displayed is a three-dimensional polar coordinate system, it is determined that the coordinate system corresponding to the image to be displayed is the same as the three-dimensional polar coordinate system.

Step 104: Convert the acquired coordinate system to the three-dimensional polar coordinate system, and obtain the converted image to be displayed.

In this embodiment, when the obtained coordinate system corresponding to the image to be displayed is a two-dimensional Cartesian coordinate system, according to the first conversion formula, such as formula (5) and formula (6), the two corresponding to the image to be displayed The coordinate values (x, y) of the Descartes coordinate system are converted to the coordinates of the two-dimensional polar coordinate system corresponding to the image to be displayed

According to the second conversion formula, such as formula (3), the coordinate values of the two-dimensional polar coordinate system corresponding to the image to be displayed

Convert to the coordinate value corresponding to the three-dimensional polar coordinate system

When the obtained coordinate system corresponding to the image to be displayed is a two-dimensional polar coordinate system, according to the second conversion formula, such as formula (3), the coordinate value of the two-dimensional polar coordinate system corresponding to the image to be displayed is

In an embodiment, since the type of the image to be displayed includes a bitmap or a vector diagram, the type of the image to be displayed can be determined first when performing the conversion operation on the image to be displayed, and then, the acquired type can be obtained according to the type of the image to be displayed Transform to the three-dimensional Cartesian coordinate system.

For example, when the image to be displayed is a bitmap, the image to be displayed includes several pixels, the first coordinate value corresponding to each pixel in the image to be displayed can be converted to the second coordinate value corresponding to the three-dimensional polar coordinate system .

In an embodiment, when the first coordinate value of each pixel in the image to be displayed is the coordinate value (x, y) corresponding to the two-dimensional Cartesian coordinate system, each pixel is converted according to the first conversion formula The first coordinate value (x, y) is converted to the intermediate coordinate value corresponding to the two-dimensional polar coordinate system

And according to the second conversion formula, the intermediate coordinate value of each pixel

Convert to the second coordinate value corresponding to the three-dimensional polar coordinate system

When the first coordinate value of each pixel is the coordinate value corresponding to the two-dimensional polar coordinate system

, According to the second conversion formula, the first coordinate value of each pixel

The second coordinate value converted to a three-dimensional polar coordinate system

In an embodiment, when the image to be displayed is a vector diagram, the image to be displayed includes one or more coordinate points and vector graphics, and the third coordinate value and vector graphic corresponding to each coordinate point in the image to be displayed may be Converted to the fourth coordinate value corresponding to the three-dimensional polar coordinate system, wherein the third coordinate value corresponding to the coordinate point is the coordinate of the vertex of the vector graphic.

For example, when the third coordinate value of each coordinate point is the coordinate value (x, y) corresponding to the two-dimensional Cartesian coordinate system, according to the first conversion formula, the third coordinate value (x, y) of each coordinate point ) Convert to the intermediate coordinate value corresponding to the two-dimensional polar coordinate system

According to the middle coordinate value of the coordinate point

And the data model corresponding to the vector graphics to generate the intermediate coordinate value of each pixel of the image to be displayed on the display device

According to the second conversion formula, the intermediate coordinate value of each pixel on the display device is displayed on the display device

Convert to the fourth coordinate value corresponding to the three-dimensional polar coordinate system

When the third coordinate value of each coordinate point is the coordinate value corresponding to the two-dimensional polar coordinate system

, According to the coordinate value of the coordinate point

Please refer to FIG. 2 again. When the image to be displayed is a vector diagram and the identification information of the vector diagram is a straight line, the data model corresponding to the straight line can be obtained. Among them, for the straight line AB of the vector graphics, the coordinate points included are A(x ₁ , y ₁ ) and B(x ₂ , y ₂ ). According to the identification information of the straight line, the mathematical expression of the corresponding data model can be:

Since the coordinate points of the vector graphics are represented by the Cartesian coordinate system, the intermediate coordinate values A(r ₁ , α) and B(r ₂ , β) corresponding to the converted coordinate points are obtained after conversion according to formula (5). The converted coordinate point is substituted into formula (7) (that is, the data model of the straight line) and the expression is as follows. The expression of the straight line AB is:

Among them, the values of r ₁ , α, r ₂ , and β have been determined, and the value range of r has also been determined. Therefore, in the data model of the linear vector graphics described above, the corresponding r can be obtained for a given r

In this way, by enumerating the values of r located between r ₂ and r ₁ , the intermediate coordinate values of the two-dimensional polar coordinate system corresponding to each pixel displayed on the display device by the vector diagram can be obtained

After that, according to the intermediate coordinate value of each pixel of the image to be displayed

R in R, the number of pixels from each display pixel to the center of the sphere on the spherical curved screen, and the formula (3) can obtain the corresponding elevation angle θ, which can determine the coordinate value of the corresponding three-dimensional polar coordinate system

Step 106, controlling to display the converted image to be displayed on the display device.

In this embodiment, the polar coordinate values of the three-dimensional polar coordinate system corresponding to each pixel in the converted image to be displayed are all

And the spherical polar coordinate values of the three-dimensional polar coordinate system corresponding to the pixels of the spherical curved screen are also expressed as

Therefore, there is a one-to-one mapping between the image polar coordinate value of each pixel in the image to be displayed and the spherical polar coordinate value of the pixel of the spherical curved screen, and then the polar coordinate value of the image and the spherical polar coordinate The mapping relationship between the values renders the corresponding pixel points in the spherical curved screen. For example, it is possible to control rendering of pixels corresponding to spherical polar coordinate values that are the same as the image polar coordinate values in the spherical curved screen, and the converted image to be displayed can be displayed.

In this embodiment, the straight line AB displayed on the spherical curved screen may be an arc.

Step 108: Control the display of the image to be displayed on the display device.

When the coordinate system corresponding to the image to be displayed is a three-dimensional polar coordinate system, it means that the image to be displayed can be directly rendered through the corresponding pixel points on the spherical curved screen to directly complete the display of the image to be displayed.

The above image processing method converts the image to be displayed that has a different coordinate system corresponding to the display device so that the converted image to be displayed is the same as the coordinate system corresponding to the display, and then the converted image to be displayed can be displayed On the spherical curved screen, it is helpful to reduce the phenomenon of display distortion when the coordinate system corresponding to the image to be displayed is different from the coordinate system corresponding to the display device, and it is also convenient to display on the curved display screen. Helps improve the user's experience.

Please refer to FIG. 4, which shows a schematic diagram of a hardware structure of a display device in an embodiment of the present application. As shown in FIG. 4, the display device 50 can be applied to the foregoing embodiments. The following describes the display device 50 provided by the present application. The display device 50 may include a processor 500, a storage device 502, and a display screen 504. As well as computer programs (instructions) stored in the storage device 502 and executable on the processor 500, the display device 50 may further include other hardware parts, such as communication devices, which will not be repeated here. The processor 500 can exchange data with the storage device 502 and the display screen 504 through the bus 506.

The processor 500 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The processor is the control center of the display device 50, and uses various interfaces and lines to connect the various parts of the entire display device 50 .

The storage device 502 may be used to store the computer program and/or module. The processor 500 executes or executes the computer program and/or module stored in the storage device 502 and calls the storage device 502. Data to realize various functions of the image processing method. The storage device 502 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, application programs required for at least one function, and the like. In addition, the storage device 502 may include a high-speed random access storage device, and may also include a non-volatile storage device, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart, Media, Card, SMC), and a secure digital (Secure Digital) , SD) card, flash memory card (Flash Card), at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The display screen 504 can display a user interface (UI) or a graphical user interface (GUI), including data such as photos, videos, and chat content. The display device 504 can also be used as an input device and an output device. The display device can include a liquid crystal display At least one of (LCD), thin-film transistor LCD (TFT-LCD), organic light-emitting diode (OLED) touch display, flexible touch display, three-dimensional (3D) touch display, and the like. The display screen 504 may be a non-rectangular display screen, including but not limited to a circular display device and a spherical curved screen.

The processor 500 executes the program corresponding to the executable program code by reading the executable program code stored in the storage device 502, for executing the image processing method performed by the display device in any of the foregoing embodiments.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not detailed in an embodiment, you can refer to the related descriptions of other embodiments.

The embodiments of the present application are described in detail above, and specific examples are used to explain the principles and embodiments of the present application. The descriptions of the above embodiments are only used to help understand the method and the core idea of the present application; at the same time, Those of ordinary skill in the art, according to the ideas of the present application, may have changes in specific embodiments and application scopes. In summary, the content of this specification should not be construed as limiting the present application.

Claims

An image processing method is applied to a display device. The display device includes a spherical curved screen. The method is characterized in that the method includes:

Obtain the coordinate system corresponding to the image to be displayed;

Determine whether the coordinate system corresponding to the acquired image to be displayed is the three-dimensional polar coordinate system corresponding to the display device;

If the acquired coordinate system is not the three-dimensional polar coordinate system, convert the acquired coordinate system to the three-dimensional polar coordinate system, and obtain the converted image to be displayed;

Controlling to display the converted image to be displayed on the display device.
The image processing method according to claim 1, wherein the coordinate system corresponding to the image to be displayed includes one of a two-dimensional Cartesian coordinate system, a two-dimensional polar coordinate system, or a three-dimensional polar coordinate system.
The image processing method according to claim 2, wherein the converting the acquired coordinate system to the three-dimensional polar coordinate system and obtaining the converted image to be displayed specifically includes:

When the acquired coordinate system is a two-dimensional Cartesian coordinate system, convert the two-dimensional Cartesian coordinate system corresponding to the image to be displayed to the two-dimensional polar coordinate system corresponding to the image to be displayed according to the first conversion formula And convert the two-dimensional polar coordinate system corresponding to the image to be displayed to the three-dimensional polar coordinate system according to the second conversion formula; or

When the acquired coordinate system is a two-dimensional polar coordinate system, the two-dimensional polar coordinate system corresponding to the image to be displayed is converted to the three-dimensional polar coordinate system according to the second conversion formula.
The image processing method according to claim 2, wherein the converting the acquired coordinate system to the three-dimensional polar coordinate system and obtaining the converted image to be displayed specifically includes:

Determine the type of the image to be displayed;

Convert the acquired coordinate system to the three-dimensional Cartesian coordinate system according to the type of the image to be displayed.
The image processing method according to claim 4, wherein the type of the image to be displayed is a bitmap or a vector diagram, and the coordinate system is acquired to the coordinate system according to the type of the image to be displayed. Three-dimensional Cartesian coordinate system, including:

When the image to be displayed is a bitmap, convert the first coordinate value of each pixel in the image to be displayed to the second coordinate value corresponding to the three-dimensional polar coordinate system; or

When the image to be displayed is a vector diagram, the third coordinate value corresponding to the coordinate point included in the image to be displayed is converted to the fourth coordinate value corresponding to the three-dimensional polar coordinate system.
The image processing method according to claim 5, wherein the first coordinate value of each pixel in the image to be displayed is converted to a second coordinate value corresponding to the three-dimensional Cartesian coordinate system, This includes:

When the first coordinate value is the coordinate value corresponding to the two-dimensional Cartesian coordinate system, the first coordinate value is converted to the intermediate coordinate value corresponding to the two-dimensional polar coordinate system according to the first conversion formula, and A two conversion formula to convert the intermediate coordinate value to the second coordinate value of the three-dimensional polar coordinate system; or

When the first coordinate value is a coordinate value corresponding to a two-dimensional polar coordinate system, the first coordinate value is converted to a second coordinate value corresponding to the three-dimensional polar coordinate system according to the second conversion formula.
The image processing method according to claim 5, wherein the image to be displayed includes a vector graphic, and the third coordinate value corresponding to the coordinate point contained in the image to be displayed is converted to the three-dimensional Cartesian The fourth coordinate value corresponding to the coordinate system includes:

When the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional Cartesian coordinate system, the third coordinate value is converted to the two-dimensional polar coordinate system according to the first conversion formula Corresponding intermediate coordinate value, the intermediate coordinate value of each pixel of the display image to be displayed on the display device is generated according to the intermediate coordinate value of the coordinate point and the data model corresponding to the vector graphic, and converted according to the second The formula converts the intermediate coordinate value of each pixel of the image to be displayed on the display device to the fourth coordinate value corresponding to the three-dimensional polar coordinate system; or

When the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional polar coordinate system, the to-be-generated object is generated according to the third coordinate value and the data model corresponding to the vector graphic Display the image to be displayed on the intermediate coordinate value of each pixel on the display device, and convert the intermediate coordinate value of each pixel displayed on the display device to the three-dimensional according to the second conversion formula The fourth coordinate value corresponding to the polar coordinate system.
The image processing method according to claim 5, wherein the image to be displayed is a vector graphic, the vector graphic includes corresponding attribute information, and the third corresponding to the coordinate point included in the image to be displayed The conversion of the third coordinate value of a coordinate system to the fourth coordinate value of the second coordinate system corresponding to the display device specifically includes:

When the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional Cartesian coordinate system, the third coordinate value is converted to the two-dimensional polar coordinate system according to the first conversion formula Corresponding intermediate coordinate value, the intermediate coordinate value of each pixel point of the image to be displayed on the display device is generated according to the intermediate coordinate value of the coordinate point, the vector graphics and the data model corresponding to the attribute information, and according to the second The conversion formula converts the intermediate coordinate value of each pixel of the image to be displayed on the display device to the fourth coordinate value corresponding to the three-dimensional polar coordinate system; or

When the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional polar coordinate system, the data is generated according to the third coordinate value, the vector graphics, and the data model corresponding to the attribute information. Displaying the intermediate coordinate value of each pixel on the display device for the image to be displayed, and converting the intermediate coordinate value of each pixel on the display device to the display according to the second conversion formula The fourth coordinate value corresponding to the three-dimensional polar coordinate system; wherein, the third coordinate value corresponding to the coordinate point is the coordinate of the vertex of the vector graphic.
The image processing method according to claim 1, wherein the image to be displayed after the control conversion is displayed on the display device specifically includes:

Obtain the image polar coordinate value of the three-dimensional polar coordinate system corresponding to each pixel in the converted image to be displayed;

Acquiring spherical polar coordinate values of a three-dimensional polar coordinate system corresponding to each pixel point in the spherical curved screen;

Rendering corresponding pixel points in the spherical curved screen according to the mapping relationship between the polar coordinate values of the image and the spherical polar coordinate values to display the converted image to be displayed.
The image processing method according to claim 9, wherein the corresponding pixel points in the spherical curved screen are rendered according to the mapping relationship between the polar coordinate values of the image and the spherical polar coordinate values, This includes:

Controlling rendering of pixels corresponding to spherical polar coordinate values that are the same as the polar coordinate values of the image in the spherical curved screen.
A display device, characterized in that the display device includes:

A spherical curved screen, the pixels on the spherical curved screen have spherical polar coordinate values corresponding to a three-dimensional polar coordinate system;

A processor, connected to the spherical curved screen, the processor is used to obtain a coordinate system corresponding to the image to be displayed; the processor is also used to determine whether the coordinate system corresponding to the acquired image to be displayed is the same as the A three-dimensional polar coordinate system; if the acquired coordinate system is not the three-dimensional polar coordinate system, the processor is used to convert the acquired coordinate system to the three-dimensional three-dimensional polar coordinate system and obtain the converted The image to be displayed; the processor is also used to control displaying the converted image to be displayed on the spherical curved screen.
The display device according to claim 11, wherein the coordinate system corresponding to the image to be displayed includes one of a two-dimensional Cartesian coordinate system, a two-dimensional polar coordinate system, or a three-dimensional polar coordinate system.
The display device according to claim 12, wherein when the acquired coordinate system is a two-dimensional Cartesian coordinate system, the processor converts the two-dimensional flute corresponding to the image to be displayed according to the first conversion formula The Karl coordinate system is converted to a two-dimensional polar coordinate system corresponding to the image to be displayed, and the processor further converts the two-dimensional polar coordinate system corresponding to the image to be displayed to the three-dimensional polar coordinate according to a second conversion formula Department; or

When the acquired coordinate system is a two-dimensional polar coordinate system, the processor converts the two-dimensional polar coordinate system corresponding to the image to be displayed to the three-dimensional polar coordinate system according to the second conversion formula.
The display device according to claim 12, wherein the processor is further configured to determine the type of the image to be displayed, and convert the acquired coordinate system to the position according to the type of the image to be displayed Said three-dimensional Cartesian coordinate system.
The display device according to claim 14, wherein when the image to be displayed is a bitmap, the processor converts the first coordinate value of each pixel in the image to be displayed into the three-dimensional The second coordinate value corresponding to the polar coordinate system; or

When the image to be displayed is a vector diagram, the processor converts the third coordinate value corresponding to the coordinate point included in the image to be displayed into the fourth coordinate value corresponding to the three-dimensional polar coordinate system, wherein, The third coordinate value corresponding to the coordinate point is the coordinate of the vertex of the vector graphic.
The display device according to claim 15, wherein when the first coordinate value is a coordinate value corresponding to a two-dimensional Cartesian coordinate system, the processor converts the first coordinate according to a first conversion formula The value is converted to an intermediate coordinate value corresponding to a two-dimensional polar coordinate system, and the processor further converts the intermediate coordinate value to the second coordinate value of the three-dimensional polar coordinate system according to a second conversion formula; or

When the first coordinate value is the coordinate value corresponding to the two-dimensional polar coordinate system, the processor converts the first coordinate value to the third coordinate corresponding to the three-dimensional polar coordinate system according to the second conversion formula Two coordinate values.
The display device according to claim 15, wherein when the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional Cartesian coordinate system, the processor A conversion formula converts the third coordinate value to the intermediate coordinate value corresponding to the two-dimensional polar coordinate system, and generates the image to be displayed according to the intermediate coordinate value of the coordinate point and the data model corresponding to the vector graphic The intermediate coordinate value of each pixel on the display device; the processor also converts the intermediate coordinate value of each pixel displayed on the display device to the three-dimensional polar coordinate according to the second conversion formula The fourth coordinate value corresponding to the department; or

When the third coordinate value corresponding to the coordinate point of the image to be displayed is the coordinate value corresponding to the two-dimensional polar coordinate system, the processor according to the third coordinate value and the data model corresponding to the vector graphic Generating the intermediate coordinate value of each pixel of the image to be displayed on the display device, the processor further displays the image of the image to be displayed on each pixel of the display device according to a second conversion formula The intermediate coordinate value is converted into a fourth coordinate value corresponding to the three-dimensional polar coordinate system.
The display device according to claim 1, wherein the processor is used to obtain the image polar coordinate value of the three-dimensional polar coordinate system corresponding to each pixel in the converted image to be displayed; the processor further Used to obtain the spherical polar coordinate value of the three-dimensional polar coordinate system corresponding to each pixel in the spherical curved screen; the processor is used to determine the mapping relationship between the polar coordinate value of the image and the spherical polar coordinate value Controlling rendering of corresponding pixel points in the spherical curved screen to display the converted image to be displayed.
The display device according to claim 18, wherein the processor is configured to control rendering of pixels corresponding to spherical polar coordinate values that are the same as the polar coordinate values of the image in the spherical curved screen.
A computer-readable storage medium storing computer instructions of an image processing method, characterized in that, when the computer instructions of the image processing method are executed by a processor, the image processing according to any one of claims 1 to 10 is realized method.