CN103024191A - A screen rotation method, device and mobile terminal - Google Patents

Abstract

The present invention is applicable to the field of mobile terminals and provides a screen rotation method, device and mobile terminal. The method comprises: obtaining position information of two eyes, obtaining the direct line of sight of the two eyes according to the position information, and adjusting the display direction of the screen display picture according to the direct line of sight; when using the mobile terminal, the present invention realizes adjusting the screen display picture of the mobile terminal to the direction of the direct line of sight of the user's eyes, so as to facilitate user browsing and prevent eye diseases.

Description

A screen rotation method, device and mobile terminal

technical field

The invention belongs to the field of mobile terminals, and in particular relates to a screen rotation method, device and mobile terminal.

Background technique

In recent years, gravity sensors have been widely used in mobile terminals. The application of the gravity sensor in the mobile terminal is: the screen display screen of the mobile terminal is adjusted to the screen angle suitable for the user to watch at any time as the direction of the mobile terminal’s gravity changes; however, there are the following problems in the application: when the mobile terminal When the terminal is moving in other non-gravity acceleration directions, the screen display cannot be accurately rotated to the angle of viewing the screen display in the direction of gravity.

The screen display direction suitable for mobile terminal users does not necessarily have an absolute relationship with the direction of gravity. For example, when the user is lying down and using a mobile terminal, the suitable screen angle for the user to watch has nothing to do with gravity; in this case Under the circumstances, the most suitable screen display angle for users to watch should be the direction in which the eyes look squarely.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a screen rotation method to solve the problem of how to adjust the screen display of the mobile terminal so that the eyes look squarely when using the mobile terminal.

The embodiment of the present invention is achieved in this way, a screen rotation method, the method comprising:

Obtain the position information of the two eyes;

According to the position information, the normal line of sight of the two eyes is obtained;

The display direction of the screen display picture is adjusted according to the front line of sight.

Another object of the embodiments of the present invention is to provide a screen rotation device, the device comprising:

a location information acquisition unit, configured to acquire location information of the two eyes;

an emmetropic unit, configured to obtain the emmetropic sight of the two eyes according to the position information;

The display adjustment unit is configured to adjust the display direction of the screen display picture according to the front line of sight.

Another object of the embodiments of the present invention is to provide a mobile terminal, which includes the above-mentioned screen rotation device.

The present invention provides a screen rotation method, device, and mobile terminal. The present invention acquires the position information of two eyes, obtains the normal line of sight of the two eyes according to the position information, and adjusts the screen according to the normal line of sight. The display direction of the display screen; when using the mobile terminal, the present invention realizes the adjustment of the screen display screen of the mobile terminal to the direction of the user's eyes, so as to facilitate the user's browsing and prevent eye diseases.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

FIG. 1 is a flow chart of the implementation of the screen rotation method provided by Embodiment 1 of the present invention;

FIG. 2 is a structural diagram of a screen rotation device provided by Embodiment 2 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

Embodiment one:

Figure 1 shows the screen rotation implementation process provided by the first embodiment of the present invention, and the process is described in detail as follows:

Step S101, acquiring position information of two eyes.

The manner in which the mobile terminal obtains the position information of the two eyes may be: using a camera or a video camera of the mobile terminal to obtain the information.

When using a camera or a video camera to obtain a face picture (for example, using a front camera in a mobile terminal to obtain a face picture), use image processing technology to find two eyes from the face picture, and use the plane coordinate system Position information of the two eyes is determined.

The position information includes but not limited to coordinate information of two eyes.

Step S102, according to the position information, obtain the normal line of sight of the two eyes.

The front line of sight may be: connecting two points where the two eyes are located to form a vector line, and the angle of the vector line is the angle of the two eyes when looking straight at the front.

As an embodiment of the present invention, the step of obtaining the normal line of sight of the two eyes according to the position information may be:

According to the position information, the front line of sight and the front line of sight angle of the two eyes are obtained, and the front line of sight angle is the angle of the front line of sight.

The position points of the two eyes are connected to form an orthosight, and when the orthosight is in a horizontal coordinate system, the angle of the orthosight is obtained, and the orthosight is a vector line.

Preferably, before the step of obtaining the front line of sight and front view angle at which the two eyes are located according to the position information, and the front view angle is the angle of the front line of sight, it may also include:

Establish a plane coordinate system;

According to the plane coordinate system, a horizontal line and a horizontal angle of the current screen display picture are determined, and the horizontal angle is an angle of the horizontal line.

The plane coordinate system may be an ordinary plane coordinate system; usually, the plane coordinate system adopts a plane Cartesian coordinate system.

The horizontal line of the current on-screen display is the abscissa of the current on-screen display when viewing the current on-screen display from a frontal perspective.

The horizontal lines are vector lines.

After the plane coordinate system is determined in advance, the horizontal line of the current screen display picture is determined in the plane coordinate system, and the horizontal angle is determined at the same time.

Preferably, according to the position information, the step of obtaining the front line of sight and the front view angle at which the two eyes are located, the step of the front view angle being the angle of the front line of sight may be:

According to the position information of the two eyes in the plane coordinate system, the front sight line and the front view angle at which the two eyes are located are obtained.

After determining the horizontal line and the horizontal angle of the current screen display picture in the horizontal coordinate system, determine the coordinate points of the two eyes in the horizontal coordinate system, according to the coordinate points of the two eyes and the The coordinate points of the two eyes are connected to form the front line of sight, and the front line of sight is obtained at the same time, and the front line of sight is a vector line.

Step S103, adjusting the display direction of the screen display picture according to the front line of sight.

According to the front line of sight, the screen display picture is adjusted to a screen display picture that the user looks at squarely.

As an embodiment of the present invention, the step of adjusting the display direction of the screen display picture according to the front line of sight may be:

Judging whether the horizontal line of the current screen display picture is in the same direction as the front line of sight, if not, adjusting the horizontal line to the same direction as the front line of sight according to the front viewing angle.

When the horizontal line is parallel to the front line of sight and in the same direction, it can be determined that the horizontal line of the current display picture and the front line of sight are vector lines in the same direction, and no angle adjustment is made to the display angle of the screen display picture.

Normally, we only need to judge whether the screen display is suitable for horizontal display or vertical display, and if the suitable direction of the current screen display is inconsistent with the direction of the current screen display, then adjust the current screen display The direction that the current screen displays is suitable, if the direction that the current screen displays is consistent with the direction that is displayed on the current screen, no adjustment is made, the direction that is suitable for the current screen display and the direction that is displayed on the current screen can be Horizontal display or vertical display; for example: after adjusting the screen display, if the current screen display orientation is horizontal display, if the current screen display orientation is also horizontal display, no adjustment will be made; If the orientation is vertical display, adjust to vertical display.

Preferably, when judging whether the horizontal line of the current screen display picture is the same as the front line of sight, if not, the step of adjusting the horizontal line to be parallel to the front line of sight according to the front viewing angle may be:

Judging whether the horizontal line of the current screen display picture is parallel to the front line of sight and whether the horizontal angle is the same as the front view angle,

If the horizontal angle is not the same as the front viewing angle, the front viewing angle and the front sight line are respectively used as the new horizontal angle and the new horizontal line of the current screen display picture, or according to the horizontal angle and the front viewing angle, Adjust the direction of the horizontal line to the direction of the front line of sight.

In the plane coordinate system, when any of the conditions in which the horizontal line is parallel to the front line of sight or the horizontal angle is the same as the front line of sight is not satisfied, it is considered that the horizontal line and the front line of sight are not in the same direction The direction of the horizontal line of the current screen display picture can be adjusted to the direction of the front line of sight in two ways:

In the plane coordinate system, the screen display picture is directly displayed with the front viewing angle and the front sight line, that is, the front viewing angle and the front sight line are respectively used as a new horizontal angle and a new horizontal line of the current screen display picture;

In the plane coordinate system, the angle difference between the front view angle and the horizontal angle is obtained according to the horizontal angle and the front view angle, and the direction of the horizontal line is adjusted to the front view angle according to the angle difference. The direction of sight.

This embodiment provides a method for screen rotation. By acquiring the position information of the two eyes, according to the position information, the front line of sight and the front view angle of the two eyes are obtained, and the front view angle is the angle of the front line of sight. Determine whether the horizontal line of the current screen display picture is in the same direction as the front line of sight, if not, adjust the horizontal line to the same direction as the front line of sight according to the front viewing angle; when using a mobile terminal, this embodiment provides A new solution that adjusts the screen display of a mobile terminal to face up to the eyes, so as to facilitate users' browsing and prevent eye diseases.

Embodiment two:

FIG. 2 shows the composition structure of the screen rotation device provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

The device based on screen rotation can be a software unit, a hardware unit, or a combination of software and hardware running in each terminal device (such as a tablet computer, a smart phone), or it can be integrated into the terminal device as an independent pendant or run in the application system of the terminal device.

This embodiment provides a screen rotation device, which may include a position information acquisition unit 21, a front view unit 22, and a display adjustment unit 23, wherein each functional unit is described in detail as follows:

The location information acquiring unit 21 is configured to acquire the location information of the two eyes.

The manner in which the mobile terminal obtains the position information of the two eyes may be: using a camera or a video camera of the mobile terminal to obtain the information.

When a face picture is obtained by using a camera or a video camera (for example, a face picture is obtained by using a front-facing camera in a mobile terminal), the location information acquisition unit 21 finds two eyes from the face picture through image processing technology, And determine the position information of the two eyes through the plane coordinate system.

The position information includes but not limited to coordinate information of two eyes.

The orthographic unit 22 is configured to obtain the orthographic line of sight of the two eyes according to the position information of the position information acquisition unit 21 .

The front line of sight may be: connecting two points where the two eyes are located to form a vector line, and the angle of the vector line is the angle of the two eyes when looking straight at the front.

As an embodiment of the present invention, the front view unit 22 can also be used to obtain the front line of sight and front view angle of the two eyes according to the position information of the position information acquisition unit 21, and the front view angle is the front view angle of the two eyes. angle of sight.

The position points of the two eyes are connected to form an orthosight, and when the orthosight is in a horizontal coordinate system, the angle of the orthosight is obtained, and the orthosight is a vector line.

Preferably, the device may also include:

The coordinate system unit 24 is used to establish a plane coordinate system.

The current display unit 25 is configured to determine the horizontal line and the horizontal angle of the current screen display picture according to the plane coordinate system, where the horizontal angle is the angle of the horizontal line.

The plane coordinate system may be an ordinary plane coordinate system; usually, the plane coordinate system adopts a plane Cartesian coordinate system.

The horizontal line of the current on-screen display is the abscissa of the current on-screen display when viewing the current on-screen display from a frontal perspective.

The horizontal lines are vector lines.

After the plane coordinate system is determined in advance, the current display unit 25 determines the horizontal line of the current screen display picture in the plane coordinate system, and at the same time determines the horizontal angle.

Preferably, the front viewing unit 22 can also be used for:

According to the position information of the two eyes in the plane coordinate system, the normal line of sight and the normal line of sight of the two eyes are obtained.

After determining the horizontal line and the horizontal angle of the current screen display picture in the horizontal coordinate system, the front view unit 22 determines the coordinate points of the two eyes in the horizontal coordinate system, according to the coordinates of the two eyes point and the emmetropic angle of the eyes, the coordinate points of the two eyes are connected into an emmetropic line of sight, and the emmetropic angle is obtained at the same time, and the emmetropic line of sight is a vector line.

The display adjustment unit 23 is configured to adjust the display direction of the screen display picture according to the front sight line described by the front view unit 22 .

In this embodiment, the display adjustment unit 23 adjusts the screen display picture to the screen display picture that the user looks at directly according to the front line of sight.

As an embodiment of the present invention, the display adjustment unit 23 can be used to judge whether the horizontal line of the current screen display picture is in the same direction as the front line of sight described in the front view unit 22, and if not, adjust the front view angle according to the front view unit 22. The horizontal line is in the same direction as the front line of sight.

When the horizontal line is parallel and in the same direction as the front line of sight, the display adjustment unit 23 can determine that the horizontal line of the current display picture and the front line of sight are vector lines in the same direction, and then do not make any adjustments to the display angle of the screen display picture. Any angle adjustment.

Normally, we only need to judge whether the screen display is suitable for horizontal display or vertical display. If the suitable direction of the current screen display is inconsistent with the direction of the current screen display, the display adjustment unit 23 will adjust the current screen display The direction is adjusted to the direction suitable for the current screen display. If the suitable direction of the current screen display is consistent with the direction of the current screen display, no adjustment is made; for example: after the screen display is adjusted, if the current screen display The displayed direction is horizontal display, if the current screen display suitable direction is also horizontal display, then the display adjustment unit 23 does not adjust, if the current screen display suitable direction is vertical display, then the display adjustment unit 23 adjusts to vertical display.

Preferably, the current display unit 23 may include:

The judging unit 231 is configured to judge whether the horizontal line of the currently displayed screen is parallel to the front sight line and whether the horizontal angle is the same as the front sight angle.

The adjustment unit 232 is configured to use the front viewing angle and the front sight line as the new horizontal angle and the new horizontal line of the current screen display picture respectively if the horizontal angle is not the same as the front viewing angle, or according to the horizontal angle and the front view angle, adjust the horizontal line to the direction of the front view.

In the plane coordinate system, when the horizontal line is parallel to the front line of sight or the horizontal angle is the same as the front line of sight, the judging unit 231 considers that the horizontal line is different from the front line of sight. For vector lines in the same direction, the adjustment unit 232 can adjust the direction of the horizontal line of the current screen display picture to the direction of the front line of sight in two ways:

In the plane coordinate system, the screen display picture is directly displayed with the front viewing angle and the front sight line, that is, the front viewing angle and the front sight line are respectively used as a new horizontal angle and a new horizontal line of the current screen display picture;

In the plane coordinate system, the angle difference between the front view angle and the horizontal angle is obtained according to the horizontal angle and the front view angle, and the direction of the horizontal line is adjusted to the front view angle according to the angle difference. The direction of sight.

This embodiment provides a screen rotation device, the position information acquisition unit acquires the position information of the two eyes, and the front view unit obtains the front line of sight and the front view angle of the two eyes according to the position information, and the front view angle is For the angle of the front line of sight, the display adjustment unit judges whether the horizontal line of the current screen display picture is in the same direction as the front line of sight, if not, adjusts the horizontal line to the same direction as the front line of sight according to the front viewing angle; The embodiment realizes that the screen display of the mobile terminal is adjusted to face up to the eyes so as to facilitate browsing by the user and prevent eye diseases.

As an embodiment of the present invention, the present invention also provides a mobile terminal, and the mobile terminal includes the screen rotation device described in the second embodiment.

Embodiments of the present invention provide a screen rotation method, device, and mobile terminal. By acquiring the position information of two eyes, and according to the position information, the front line of sight and the front view angle of the two eyes are obtained, and the front view angle For the angle of the front line of sight, determine whether the horizontal line of the current screen display picture is in the same direction as the front line of sight, if not, then adjust the horizontal line to the same direction as the front line of sight according to the front viewing angle; For the terminal, the present invention provides a screen rotation method, which adjusts the screen display picture of the mobile terminal to the angle of the eyes for display in real time, so as to facilitate users to browse and prevent eye diseases.

Those skilled in the art can understand that the various units included in the above-mentioned embodiment 2 are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, the specific names of each functional unit are also It is only for the convenience of distinguishing each other, and is not intended to limit the protection scope of the present invention.

Those of ordinary skill in the art can also understand that all or part of the steps in the method of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, so The storage medium mentioned above includes ROM/RAM, magnetic disk, optical disk, etc.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several equivalent substitutions or obvious modifications are made without departing from the concept of the present invention, and the performance or use is the same, all should be regarded as belonging to the present invention by the submitted claims The scope of patent protection determined by the book.

Claims (9)

1. A screen rotation method, characterized in that the method comprises: Obtain the position information of the two eyes; According to the position information, the normal line of sight of the two eyes is obtained; The display direction of the screen display picture is adjusted according to the front line of sight. 2. The method according to claim 1, characterized in that, the step of obtaining the front line of sight of the two eyes according to the position information is specifically: According to the position information, obtain the front line of sight and the front line angle at which the two eyes are located, and the front line angle is the angle of the front line of sight; The step of adjusting the display direction of the screen display picture according to the front line of sight is specifically: Judging whether the horizontal line of the current screen display picture is in the same direction as the front line of sight, if not, adjusting the horizontal line to the same direction as the front line of sight according to the front viewing angle. 3. The method according to claim 2, wherein, according to the position information, obtaining the front line of sight and the front line of sight angle in which the two eyes are located, before the step that the front line of sight is the angle of the front line of sight ,Also includes: Establish a plane coordinate system; According to the plane coordinate system, determine the horizontal line and the horizontal angle of the current screen display picture, where the horizontal angle is the angle of the horizontal line. According to the position information, obtain the front line of sight and the front view angle at which the two eyes are located, the step of the front view angle being the angle of the front line of sight, specifically: According to the position information of the two eyes in the plane coordinate system, the front sight line and the front view angle at which the two eyes are located are obtained. 4. The method according to claim 3, wherein, when judging whether the horizontal line of the current screen display picture is the same as the front line of sight, if not, then adjusting the horizontal line to the front line according to the front viewing angle. The steps for line of sight parallelism are as follows: Judging whether the horizontal line of the current screen display picture is parallel to the front line of sight and whether the horizontal angle is the same as the front view angle, If the horizontal angle is not the same as the front viewing angle, the front viewing angle and the front sight line are respectively used as the new horizontal angle and the new horizontal line of the current screen display picture, or according to the horizontal angle and the front viewing angle, Adjust the direction of the horizontal line to the direction of the front line of sight. 5. A screen rotation device, characterized in that the device comprises: a location information acquisition unit, configured to acquire location information of the two eyes; an emmetropic unit, configured to obtain the emmetropic sight of the two eyes according to the position information; The display adjustment unit is configured to adjust the display direction of the screen display picture according to the front line of sight. 6. The device according to claim 5, wherein the front view unit is specifically configured to obtain the front line of sight and the front view angle of the two eyes according to the position information, and the front view angle is the angle of sight; The display adjustment unit is specifically used to judge whether the horizontal line of the current screen display is in the same direction as the front line of sight, and if not, adjust the horizontal line to the same direction as the front line of sight according to the front viewing angle. 7. The device of claim 6, further comprising: Coordinate system unit, used to establish a plane coordinate system; The current display unit is configured to determine the horizontal line and the horizontal angle of the current screen display picture according to the plane coordinate system, where the horizontal angle is the angle of the horizontal line. The front viewing unit is more specifically configured to: obtain the front sight line and front viewing angle of the two eyes according to the position information of the two eyes in the plane coordinate system. 8. The device according to claim 7, wherein the current display unit further comprises: A judging unit, configured to judge whether the horizontal line of the current screen display picture is parallel to the front sight line and whether the horizontal angle is the same as the front sight angle; An adjustment unit, configured to use the front viewing angle and the front sight line as the new horizontal angle and the new horizontal line of the current screen display picture respectively if the horizontal angle is different from the front viewing angle, or according to the horizontal angle and the front viewing angle The front view angle is to adjust the direction of the horizontal line to the direction of the front line of sight. 9. A mobile terminal, characterized in that the mobile terminal comprises the screen rotation device according to any one of claims 4 to 8.

Images