CN105704290A - Mobile terminal screen control method, device and mobile terminal - Google Patents

Abstract

The invention discloses a screen control method and device in a mobile terminal, and the mobile terminal, wherein the method includes the following steps: respectively acquiring a first image taken by the mobile terminal at a first time and a second image taken at a second time images; judging the rotation direction of the mobile terminal according to the first image and the second image; and controlling the rotation of the screen of the mobile terminal according to the rotation direction of the mobile terminal. The method of the embodiment of the present invention continuously uses the camera to capture images, and judges the rotation direction of the mobile terminal according to the two images captured at two times, so as to control the screen rotation of the mobile terminal according to the rotation direction of the mobile terminal. This method does not need to use The gravity sensor can realize the rotation of the screen, which greatly reduces the hardware cost.

Description

Screen control method and device in mobile terminal and mobile terminal

technical field

The present invention relates to the technical field of mobile terminals, in particular to a method and device for controlling a screen in a mobile terminal and a mobile terminal.

Background technique

Currently, the screen rotation function of the mobile terminal is implemented by a G-sensor (Gravity sensor, gravity sensor). Among them, G-sensor can perceive the change of acceleration force. By detecting acceleration values in the directions of x, y, and z axes, and continuously sending these values to the software server layer. The server layer can judge the placement position of the mobile phone based on these values to decide whether to rotate the screen. For example, the value of the acceleration of gravity is about 10. When y=10, the mobile phone is placed normally; when x=10, the screen of the mobile phone is rotated by 90 degrees; and when z=10, the mobile phone is placed horizontally. In the mobile terminal in the related art, G-sensor hardware must be added to realize automatic screen rotation, thereby increasing the hardware cost.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a method for controlling the screen in a mobile terminal, which can realize the rotation of the screen without using a gravity sensor, thereby greatly reducing hardware costs.

The second object of the present invention is to provide a device for controlling a screen in a mobile terminal.

The third object of the present invention is to provide a mobile terminal.

In order to achieve the above object, the method for controlling the screen in the mobile terminal according to the embodiment of the first aspect of the present invention includes the following steps: respectively acquiring the first image taken by the mobile terminal at the first time and the second image taken at the second time; Discriminating the rotation direction of the mobile terminal from the first image and the second image; and controlling the rotation of the screen of the mobile terminal according to the rotation direction of the mobile terminal.

According to the method for controlling the screen in the mobile terminal according to the embodiment of the present invention, by continuously using the camera to capture images, and judging the rotation direction of the mobile terminal according to the two images taken at two times, to control the screen of the mobile terminal according to the rotation direction of the mobile terminal Rotation, this method can realize the rotation of the screen without using the gravity sensor, which greatly reduces the hardware cost.

In order to achieve the above object, the device for controlling the screen in the mobile terminal according to the embodiment of the second aspect of the present invention includes: an acquisition module for acquiring the first image captured by the mobile terminal at the first time and the second image captured at the second time respectively image; a direction judging module, used to judge the rotation direction of the mobile terminal according to the first image and the second image; and a rotation control module, used to control the screen of the mobile terminal to rotate according to the rotation direction of the mobile terminal rotate.

According to the control device of the screen in the mobile terminal in the embodiment of the present invention, the acquisition module acquires two images taken by the mobile terminal at two times, and the direction judgment module judges the rotation direction of the mobile terminal according to the two images, so that the rotation control module according to the movement The rotation direction of the terminal controls the rotation of the screen of the mobile terminal, and the device can realize the rotation of the screen without using a gravity sensor, thereby greatly reducing hardware costs.

In order to achieve the above object, the mobile terminal according to the embodiment of the third aspect of the present invention includes: the device for controlling the screen in the mobile terminal according to the embodiment of the second aspect of the present invention.

According to the mobile terminal of the embodiment of the present invention, since it has a screen control device in the mobile terminal, the automatic rotation function of the screen can be realized without using a gravity sensor, thereby greatly saving hardware cost.

Description of drawings

FIG. 1 is a flowchart of a method for controlling a screen in a mobile terminal according to an embodiment of the present invention;

Fig. 2 is a flow chart of judging the rotation direction of the mobile terminal according to the first image and the second image according to one embodiment of the present invention;

Fig. 3 is a schematic diagram of first contour data according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of second contour data according to an embodiment of the present invention;

Fig. 5A is a schematic diagram of the position of L6 in the first image according to an embodiment of the present invention;

Fig. 5B is a schematic diagram of the position of L6 in the second image according to an embodiment of the present invention;

Fig. 5C is a schematic diagram of the position of L6 in the first image and the second image in the same coordinate system according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of an apparatus for controlling a screen in a mobile terminal according to an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The method and device for controlling the screen in the mobile terminal and the mobile terminal according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a flowchart of a method for controlling a screen in a mobile terminal according to an embodiment of the present invention. As shown in Figure 1, the control method of the screen in the mobile terminal of the embodiment of the present invention, comprises the following steps:

S1. Respectively acquire a first image taken by the mobile terminal at a first time and a second image taken at a second time.

In an embodiment of the present invention, the first image and the second image are acquired after the screen of the mobile terminal is turned on or continues to be turned on, and the first image and the second image are deleted after the screen is off or turned off.

Specifically, when the user turns on the automatic screen rotation function and the screen is on, a timer is started to prepare for taking pictures, so as to obtain the first image taken at the first time and the second image taken at the second time. Wherein, when the mobile terminal takes pictures, the interval between taking pictures of two images (ie, the first image and the second image) can be several seconds, and can be automatically triggered.

S2. Determine the rotation direction of the mobile terminal according to the first image and the second image.

In one embodiment of the present invention, as shown in Figure 2, S2 specifically includes:

S21. Extract first contour data in the first image, and extract second contour data in the second image.

Specifically, after the first image and the second image are acquired, contour data needs to be extracted from the images, and the extracted contour data is effective data for judging whether the image is rotated. For example, the first contour data in the first image can be extracted by image processing software, such as L1, L2, L3, L4, L5, L6 as shown in Figure 3, and the second contour data in the second image can be extracted, such as L1, L2, L3, L4, L5, L6 shown in Figure 4.

S22. Determine the rotation direction of the mobile terminal according to the first contour data and the second contour data.

In an embodiment of the present invention, judging the rotation direction of the mobile terminal according to the first contour data and the second contour data is specifically: judging the rotation direction of the mobile terminal according to the direction of the first contour data and the direction of the second contour data.

Specifically, compare the first contour data with the second contour data, select relevant data items, for example, select data items with the same length, such as L6, and then obtain the positions of L6 in the first image and the second image respectively , and further determine the rotation direction of the mobile terminal according to the change of the L6 position.

S3, controlling the screen of the mobile terminal to rotate according to the rotation direction of the mobile terminal.

Specifically, after the rotation direction of the mobile terminal is determined, the screen of the mobile terminal can be controlled to perform a corresponding rotation according to the rotation direction of the mobile terminal.

The method for controlling the screen in the mobile terminal according to the embodiment of the present invention continuously uses the camera to capture images, and judges the rotation direction of the mobile terminal according to the two images captured at two times, so as to control the rotation of the screen of the mobile terminal according to the rotation direction of the mobile terminal , this method can realize the rotation of the screen without using the gravity sensor, which greatly reduces the hardware cost.

In one embodiment of the present invention, after judging the rotation direction of the mobile terminal according to the first contour data and the second contour data, it further includes: obtaining the rotation angle of the mobile terminal according to the first contour data and the second contour data, so as to obtain the rotation angle of the mobile terminal according to the rotation The angle controls the rotation of the screen of the mobile terminal.

Preferably, controlling the rotation of the screen of the mobile terminal according to the rotation angle specifically includes: judging whether the rotation angle is greater than a preset angle; if yes, controlling the rotation of the screen of the mobile terminal according to the rotation angle.

Specifically, for example, as shown in Fig. 5A, Fig. 5B, and Fig. 5C, wherein Fig. 5A shows a schematic diagram of the position of L6 in the first image, and Fig. 5B shows a schematic diagram of the position of L6 in the second image, Fig. 5C is a schematic diagram of the position of L6 in the first image and the second image in the same coordinate system, P1 in the figure represents the first image, and P2 represents the second image. After the rotation direction of the mobile terminal is determined according to the change of the position of L6, the rotation angle of L6 can be calculated through the coordinate position of L6 in the first image and the coordinate position in the second image, thereby knowing the rotation angle of the mobile terminal , and when the rotation angle of the mobile terminal is greater than a preset angle (for example, 45 degrees), the screen of the mobile terminal is controlled to perform a corresponding rotation.

In an embodiment of the present invention, after respectively acquiring the first image taken by the mobile terminal at the first time and the second image taken at the second time, further includes: screening the first image and the second image.

In one embodiment of the present invention, the screening of the first image and the second image specifically includes: extracting the first contour data in the first image, extracting the second contour data in the second image, and judging the first Whether the contour data is related to the second contour data; if not, delete the first image and the second image.

Specifically, after the first image and the second image are acquired, if the acquired first image and/or the second image are unqualified, for example, valid data cannot be extracted when performing contour extraction on the first image and/or the second image ( That is, the first profile data is not related to the second profile data), then the image is discarded, and a new image is taken to obtain a new image, so as to ensure the accuracy of determining the rotation direction of the mobile terminal.

In the embodiment of the present invention, a special photo storage area can be opened up in the memory of the mobile terminal. After the user turns on the automatic screen rotation function, the timer is turned on to take pictures at regular intervals, save the latest photos and delete old photos. This ensures that the latest location information is kept and does not take up too much system space. Among them, the interval between taking pictures of the two pictures before and after can be a few seconds, which can be automatically triggered by the system. In addition, when the screen is off or the user turns off the automatic screen rotation function, the timer ends and the captured photo data is deleted.

In the embodiment of the present invention, the resolution of the photographs taken (that is, the first image and the second image) may be a relatively low resolution, as long as they can be identified.

In order to realize the above embodiments, the present invention further proposes a device for controlling a screen in a mobile terminal.

Fig. 6 is a schematic structural diagram of an apparatus for controlling a screen in a mobile terminal according to an embodiment of the present invention. As shown in FIG. 6 , the device for controlling a screen in a mobile terminal according to an embodiment of the present invention includes: an acquisition module 100 , a direction judgment module 200 and a rotation control module 300 .

Wherein, the acquisition module 100 is configured to respectively acquire the first image taken by the mobile terminal at the first time and the second image taken at the second time.

In one embodiment of the present invention, the obtaining module 100 is specifically configured to: obtain the first image and the second image after the screen of the mobile terminal is turned on or during continuous lighting, and delete the first image after the screen is off or off and the second image.

Specifically, when the user turns on the screen auto-rotation function, a timer is started to prepare for taking pictures when the screen is on or continues to be on, so as to obtain the first image taken at the first time and the second image taken at the second time. Wherein, when the mobile terminal takes pictures, the interval between taking pictures of two images (ie, the first image and the second image) can be several seconds, and can be automatically triggered.

The direction judging module 200 is used for judging the rotation direction of the mobile terminal according to the first image and the second image.

In one embodiment of the present invention, the direction judging module 200 is specifically configured to: extract the first contour data in the first image, and extract the second contour data in the second image; The data determines the rotation direction of the mobile terminal.

In an embodiment of the present invention, the direction judging module 200 judges the rotation direction of the mobile terminal according to the first contour data and the second contour data, specifically: judges the rotation direction of the mobile terminal according to the direction of the first contour data and the direction of the second contour data direction of rotation.

Specifically, after the first image and the second image are acquired, contour data needs to be extracted from the images, and the extracted contour data is effective data for judging whether the image is rotated. For example, the first contour data in the first image can be extracted by image processing software, such as L1, L2, L3, L4, L5, L6 as shown in Figure 3, and the second contour data in the second image can be extracted, such as L1, L2, L3, L4, L5, L6 shown in Figure 4.

Further, for example, compare the first contour data with the second contour data, select relevant data items, for example, select data items with the same length, such as L6, and then obtain L6 in the first image and the second image respectively position, and then determine the rotation direction of the mobile terminal according to the change of the L6 position.

The rotation control module 300 is used for controlling the rotation of the screen of the mobile terminal according to the rotation direction of the mobile terminal.

Specifically, after the direction determination module 200 determines the rotation direction of the mobile terminal, the rotation control module 300 can control the screen of the mobile terminal to rotate correspondingly according to the rotation direction of the mobile terminal.

In the control device of the screen in the mobile terminal in the embodiment of the present invention, the acquisition module acquires two images taken by the mobile terminal at two times, and the direction judgment module judges the rotation direction of the mobile terminal according to the two images, so that the rotation control module according to the mobile terminal The rotation direction of the mobile terminal controls the rotation of the screen of the mobile terminal, and the device can realize the rotation of the screen without using a gravity sensor, which greatly reduces the hardware cost.

In one embodiment of the present invention, the direction judging module 200 is also used to: obtain the rotation angle of the mobile terminal according to the first contour data and the second contour data, so that the rotation control module 300 controls the screen of the mobile terminal to rotate according to the rotation angle .

Preferably, the direction judging module 200 judges whether the rotation angle is greater than a preset angle, and if so, controls the screen of the mobile terminal to rotate according to the rotation angle.

Specifically, for example, as shown in FIG. 5A, FIG. 5B, and FIG. 5C, after the direction determination module 200 determines the rotation direction of the mobile terminal according to the change of the position of L6, the coordinate position of L6 in the first image and the coordinate position of L6 in the second image The coordinate position in the image can calculate the rotation angle of L6, thereby knowing the rotation angle of the mobile terminal, and the rotation control module 300 controls the screen of the mobile terminal when the rotation angle of the mobile terminal is greater than a preset angle (for example, 45 degrees). Make the corresponding rotation.

In an embodiment of the present invention, the direction judging module 200 is further configured to: filter the first image and the second image.

In an embodiment of the present invention, the direction judging module 200 screens the first image and the second image, specifically: extracting the first contour data in the first image, and extracting the second contour data in the second image, And judge whether the first contour data is related to the second contour data, if not, delete the first image and the second image.

Specifically, after the acquisition module 100 acquires the first image and the second image, if the first image and/or the second image are unqualified, for example, the direction judging module 200 cannot perform contour extraction on the first image and/or the second image. If valid data is extracted (that is, the first contour data is irrelevant to the second contour data), the image is discarded, and the acquisition module 100 re-photographs to obtain a new image to ensure the accuracy of determining the rotation direction of the mobile terminal.

In order to realize the above embodiments, the present invention also proposes a mobile terminal. The mobile terminal includes the device for controlling the screen in the mobile terminal according to the embodiment of the present invention.

The mobile terminal in the embodiment of the present invention has a screen control device in the mobile terminal, and can realize the automatic rotation function of the screen without using a gravity sensor, thereby greatly saving hardware costs.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods 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. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (17)

1. a control method of screen in a mobile terminal, is characterized in that, comprises the following steps: Respectively acquire a first image taken by the mobile terminal at the first time and a second image taken at the second time; Discriminating the rotation direction of the mobile terminal according to the first image and the second image; and The screen of the mobile terminal is controlled to rotate according to the rotation direction of the mobile terminal. 2. The method for controlling the screen in the mobile terminal according to claim 1, wherein the first image and the second image are obtained after the screen of the mobile terminal is lit or continuously lit, and the After the screen is off or closed, delete the first image and the second image. 3. The method for controlling the screen in the mobile terminal according to claim 1, wherein said discriminating the rotation direction of the mobile terminal according to the first image and the second image specifically comprises: extracting first contour data in the first image, and extracting second contour data in the second image; and Discriminating the rotation direction of the mobile terminal according to the first profile data and the second profile data. 4. The method for controlling a screen in a mobile terminal according to claim 3, wherein said discriminating the direction of rotation of said mobile terminal according to said first profile data and second profile data specifically comprises: Discriminating the rotation direction of the mobile terminal according to the direction of the first contour data and the direction of the second contour data. 5. The method for controlling the screen in the mobile terminal according to claim 3, further comprising: Obtain the rotation angle of the mobile terminal according to the first contour data and the second contour data, so as to control the rotation of the screen of the mobile terminal according to the rotation angle. 6. The method for controlling the screen in the mobile terminal according to claim 5, wherein the controlling the screen of the mobile terminal to rotate according to the rotation angle specifically comprises: judging whether the rotation angle is greater than a preset angle; If so, controlling the screen of the mobile terminal to rotate according to the rotation angle. 7. The control method of the screen in the mobile terminal as claimed in claim 1, characterized in that, after said obtaining the first image taken by the mobile terminal at the first time and the second image taken at the second time respectively, further include: Screening is performed on the first image and the second image. 8. The method for controlling the screen in the mobile terminal according to claim 7, wherein the screening of the first image and the second image specifically comprises: extracting first contour data in the first image, and extracting second contour data in the second image, and judging whether the first contour data is related to the second contour data; If not relevant, the first and second images are deleted. 9. A control device for a screen in a mobile terminal, comprising: An acquisition module, configured to respectively acquire the first image taken by the mobile terminal at the first time and the second image taken at the second time; a direction judging module, configured to judge the rotation direction of the mobile terminal according to the first image and the second image; and A rotation control module, configured to control the screen of the mobile terminal to rotate according to the rotation direction of the mobile terminal. 10. The control device of the screen in the mobile terminal as claimed in claim 9, wherein the acquisition module is specifically used for: The first image and the second image are acquired after the screen of the mobile terminal is turned on or continues to be turned on, and after the screen is off or closed, the first image and the second image are deleted. 11. The control device of the screen in the mobile terminal as claimed in claim 9, wherein the direction judgment module is specifically used for: Extracting first contour data in the first image, extracting second contour data in the second image, and judging the rotation direction of the mobile terminal according to the first contour data and the second contour data. 12. The control device of the screen in the mobile terminal as claimed in claim 11, wherein the direction judging module is specifically used for: Discriminating the rotation direction of the mobile terminal according to the direction of the first contour data and the direction of the second contour data. 13. The control device of the screen in the mobile terminal as claimed in claim 11, wherein the direction judging module is also used for: The rotation angle of the mobile terminal is acquired according to the first profile data and the second profile data, so that the rotation control module controls the screen of the mobile terminal to rotate according to the rotation angle. 14. The control device of the screen in the mobile terminal as claimed in claim 13, wherein the direction judgment module is specifically used for: Judging whether the rotation angle is greater than a preset angle, if yes, controlling the screen of the mobile terminal to rotate according to the rotation angle. 15. The control device of the screen in the mobile terminal as claimed in claim 9, wherein the direction judging module is also used for: Screening is performed on the first image and the second image. 16. The control device of the screen in the mobile terminal as claimed in claim 15, wherein the direction judging module is specifically used for: Extracting the first contour data in the first image, and extracting the second contour data in the second image, and judging whether the first contour data is related to the second contour data, if not, then The first image and the second image are deleted. 17. A mobile terminal, characterized by comprising: the device for controlling the screen in the mobile terminal according to any one of claims 9-16.