CN104994303B - Method, apparatus, terminal and the system of self-timer - Google Patents

Abstract

The present invention is applicable to the technical field of photographing, and provides a self-portrait method, device, terminal and system. The method includes: establishing a wireless connection between the first terminal and the second terminal; when the first terminal enters the preview mode, the first terminal Receiving an enlargement instruction sent by the second terminal; the first terminal enlarges the preview image displayed on the display screen of the first terminal according to the enlargement instruction; the first terminal takes a photo according to the received photographing instruction. The present invention can make the details of the user's face larger and more obvious, making it easy to observe one's own expression and adjust it in time, thereby improving the user experience and allowing the user to take pictures with better effects.

Description

Selfie method, device, terminal and system

technical field

The invention belongs to the technical field of photographing, and in particular relates to a method, device, terminal and system for self-portraiting.

Background technique

The selfie stick is a selfie artifact that is popular all over the world. It can be stretched arbitrarily between 20 cm and 120 cm in length. The user only needs to fix the mobile phone or point-and-shoot camera on the telescopic stick, and use the remote control or the camera button on the selfie stick to realize it. Take selfies from multiple angles.

However, in the process of realizing the present invention, the inventor found that the Selfie method provided by the prior art has at least the following problems:

When a user takes a selfie with a selfie stick, because the mobile phone or the point-and-shoot camera is far away from the user, the user cannot see the details of his face clearly, so he cannot take a perfect photo.

Contents of the invention

In view of this, the embodiments of the present invention provide a self-portrait method, device, terminal and system to solve the self-portrait method provided by the prior art. Since the mobile phone or the point-and-shoot camera is far away from the user, the user cannot see the details of his face clearly. Hence the problem of not being able to take a perfect photo.

In the first aspect, a method for taking selfies is provided, including:

establishing a wireless connection between the first terminal and the second terminal;

When the first terminal enters the preview mode, the first terminal receives an enlargement instruction sent by the second terminal;

The first terminal enlarges the preview image displayed on the display screen of the first terminal according to the enlargement instruction;

The first terminal takes pictures according to the received picture taking instruction.

With reference to the first aspect, in the first possible implementation manner of the first aspect, after the first terminal enlarges the preview image displayed on the display screen of the first terminal according to the zoom-in instruction, the method further includes:

The first terminal receives the sliding instruction sent by the second terminal;

The first terminal moves the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction.

With reference to a possible implementation of the first aspect, in a second possible implementation of the first aspect, the preview screen displayed on the display screen of the first terminal is performed on the first terminal according to the sliding instruction. After the overall move, also include:

The first terminal receives the scaling instruction sent by the second terminal;

The first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction.

In combination with the first aspect or the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first terminal according to The camera command received to take a photo, including:

The first terminal takes pictures according to the camera instruction sent by the selfie stick; or

The first terminal takes pictures according to the picture taking instruction sent by the second terminal.

In the second aspect, a device for taking selfies is provided, including:

a connection establishing unit, configured to establish a wireless connection with the second terminal;

An enlargement instruction receiving unit, configured to receive an enlargement instruction sent by the second terminal when the first terminal enters the preview mode after establishing a wireless connection with the second terminal through the connection establishment unit;

an enlargement unit, configured to enlarge the preview image displayed on the display screen of the first terminal according to the enlargement instruction received by the enlargement instruction receiving unit;

The photographing unit is configured to photograph according to the received photographing instruction.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the device further includes:

a sliding instruction receiving unit, configured to receive a sliding instruction sent by the second terminal;

The moving unit is configured to move the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction received by the sliding instruction receiving unit.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the device further includes:

a zoom instruction receiving unit, configured to receive a zoom instruction sent by the second terminal;

a scaling unit, configured to scale the preview image displayed on the display screen of the first terminal according to the scaling command received by the scaling command receiving unit.

In combination with the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the photographing unit, include:

The first camera module is configured to take pictures according to the camera instruction sent by the selfie stick; or

The second photographing module is configured to photograph according to the photographing instruction sent by the second terminal.

In a third aspect, a terminal is provided, and the terminal includes the Selfie device described in the second aspect.

In a fourth aspect, a device for taking selfies is provided, including:

a connection establishing unit, configured to establish a wireless connection with the first terminal;

An enlargement instruction sending unit, configured to send an enlargement instruction to the first terminal when the first terminal enters the preview mode after establishing a wireless connection with the first terminal through the connection establishment unit, and the first terminal sends an enlargement instruction to the first terminal according to the enlargement instruction to zoom in on the preview screen shown on the display of the

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the device further includes:

The sliding instruction sending unit is configured to send the sliding instruction to the first terminal, and the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the sliding instruction.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the device further includes:

The zoom instruction sending unit is configured to send the zoom instruction to the first terminal, and the first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction.

In a fifth aspect, a terminal is provided, and the terminal includes the Selfie device described in the fourth aspect.

A sixth aspect provides a system for taking pictures, including the terminal described in the third aspect and the terminal described in the fifth aspect. The terminal described in the third aspect is a terminal for taking pictures and previewing images on a selfie stick.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the terminal is a mobile terminal.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the mobile terminal is a smart phone or a tablet computer.

In the embodiment of the present invention, when the user takes a selfie through the first terminal, first establishes a wireless connection with the second terminal, and when the first terminal enters the preview mode, it receives the zoom-in instruction sent by the second terminal and zooms in on the screen according to the zoom-in instruction. After the displayed preview screen is enlarged, the photo is taken according to the received photo command, so that the details of the user's face can be made more obvious, and it is easy to observe their own expressions and adjust them in time, which improves the user experience and allows the user to take pictures. Better photos.

Description of drawings

Fig. 1 is the realization flowchart of the method embodiment of selfie of the present invention;

Fig. 2 is a structural block diagram of the first embodiment of the Selfie device of the present invention;

FIG. 3 is a structural block diagram of a first embodiment of a terminal according to the present invention;

Fig. 4 is a structural block diagram of the second embodiment of the Selfie device of the present invention;

FIG. 5 is a structural block diagram of a second embodiment of a terminal according to the present invention;

Fig. 6 is a structural block diagram of an embodiment of the Selfie system 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 the embodiment of the present invention, when the user takes a selfie through the first terminal, he first establishes a wireless connection with the second terminal, and when the first terminal enters the preview mode, it receives the zoom-in instruction sent by the second terminal and adjusts the display screen according to the zoom-in instruction. After zooming in on the preview screen displayed on the screen, take a photo according to the received photo instruction.

The realization of the present invention is described in detail below in conjunction with specific embodiment:

Embodiment one

Fig. 1 shows the implementation process of the Selfie method provided by Embodiment 1 of the present invention, which is described in detail as follows:

In step S101, a first terminal establishes a wireless connection with a second terminal.

In the embodiment of the present invention, the first terminal is a terminal for shooting and previewing images on a selfie stick, and the second terminal is a remote controller for controlling the first terminal. Both the first terminal and the first terminal include a communication module, through which a wireless connection can be established between the second terminal and the first terminal.

Specifically, the communication module may be a WIFI communication module or a Bluetooth communication module, through which a WIFI connection or a Bluetooth connection may be established between the first terminal and the second terminal. The specific wireless connection mode used between the first terminal and the second terminal is not limited in this embodiment.

Since there is generally no WIFI outdoors when the user is shooting outdoors, preferably, a Bluetooth communication module can be used to establish a Bluetooth connection between the first terminal and the second terminal.

In the description of the following steps, the Bluetooth connection is taken as an example for illustration.

Wherein, the first terminal may be a mobile terminal or a point-and-shoot camera, and the second terminal may be a mobile terminal. The mobile terminal can be a smart phone or a tablet computer.

In step S102, when the first terminal enters the preview mode, the first terminal receives an enlargement instruction sent by the second terminal, and enlarges the preview image displayed on the display screen of the first terminal according to the enlargement instruction.

In the embodiment of the present invention, after the Bluetooth connection is established between the first terminal and the second terminal, the control mode of the first terminal can be modified to the Bluetooth control mode, and the second terminal can control the second terminal through Bluetooth data.

When the first terminal enters the preview mode, the user can send a magnification command to the first terminal through the second terminal, and after receiving the magnification command, the first terminal can, according to the magnification command, view the image displayed on the display screen of the first terminal. Zoom in on the preview screen.

Specifically, the second terminal may generate a corresponding zoom-in instruction according to a change in the user's gesture. For example, when it is detected that the user double-clicks on the touch screen of the second terminal or a zoom-in gesture of extending two fingers of the user from the center to two points is detected, an zoom-in instruction corresponding to a zoom factor may be generated.

After the second terminal generates a corresponding zoom-in instruction according to the change of the user's gesture, it can send the zoom-in instruction to the first terminal through a Bluetooth signal. After receiving the zoom-in instruction, the first terminal The multiplier magnifies the preview picture displayed on the display screen of the first terminal. After the picture is magnified, the details of the user's face are more obvious, which is convenient for the user to observe his expression and adjust in time to take a more beautiful photo.

Preferably, in order to facilitate observation, when the preview image displayed on the display screen of the first terminal has been enlarged, the second terminal can generate a corresponding sliding instruction according to the sliding operation input by the user, and send the sliding instruction to The first terminal, the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the received sliding instruction, so that the user can see the partial zoom effect of the picture.

For example, if the user performs an upward sliding operation on the touch screen of the second terminal, after receiving the upward sliding command sent by the second terminal, the preview screen displayed on the display screen of the first terminal moves upward as a whole; After the commands of sliding down, sliding to the left, and sliding to the right sent by the terminal, the preview screen displayed on the display screen of the first terminal moves downward, left, and right as a whole.

Preferably, after the first terminal moves the preview image displayed on the display screen of the first terminal as a whole according to the received sliding instruction, the second terminal can also generate a corresponding zoom-out instruction according to the change of the user gesture. For example, the second terminal may generate a zoom-out instruction corresponding to the zoom-out factor according to the detected zoom-out gesture of the user. After receiving the zoom-out instruction sent by the second terminal, the first terminal can zoom in on the zoomed-in and overall-moved preview screen, so that the user can see the overall effect of the screen.

In step S103, the first terminal takes a picture according to the received picture taking instruction.

In the embodiment of the present invention, the first terminal takes a photo according to the photoshoot instruction sent by the selfie stick; or the first terminal takes a photo according to the photoshoot instruction sent by the second terminal.

Wherein, there is a camera button on the selfie stick. When the user takes a photo, he can choose to operate the camera button on the selfie stick to send a camera instruction to the first terminal, and the first terminal takes a photo according to the received camera instruction.

The user can also operate the second terminal to send a photographing instruction to the first terminal through the second terminal, and the first terminal will take a photograph according to the received photographing instruction.

Wherein, the user can operate the volume key of the second terminal, or shake the second terminal to realize the sending of the photographing instruction to the first terminal.

In addition, it should be noted that the control of the first terminal by the second terminal is only to change the preview screen, and will not perform digital zooming. Therefore, the screen captured by the first terminal is still the initial screen size of the first terminal. To digitally zoom the screen, a zoom operation needs to be performed on the first terminal.

In this embodiment, when the user takes a selfie through the first terminal, first establish a wireless connection with the second terminal, and when the first terminal enters the preview mode, it receives the zoom-in instruction sent by the second terminal and adjusts the image displayed on the display screen according to the zoom-in instruction. After the preview screen is zoomed in, the photo is taken according to the photo instruction received, so that the details of the user's face can be made more obvious, and it is easy to observe their own expressions and adjust them in time, which improves the user experience and allows the user to take pictures with better results. A good photo overcomes the problem that the self-portrait method provided by the prior art cannot take a perfect photo because the mobile phone or the point-and-shoot camera is far away from the user, and the user cannot see the details of his face clearly.

It should be understood that in the embodiment of the present invention, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than the implementation process of the embodiment of the present invention. constitute any limitation.

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

Embodiment two

FIG. 2 shows a specific structural block diagram of the Selfie device provided by Embodiment 2 of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown. The Selfie device 2 can be a software unit built in the terminal, a hardware unit or a combination of software and hardware. The Selfie device 2 includes: a connection establishment unit 21, an enlargement instruction receiving unit 22, an enlargement unit 23 and a photographing unit 24.

Wherein, the connection establishment unit 21 is configured to establish a wireless connection with the second terminal;

An enlargement instruction receiving unit 22, configured to receive an enlargement instruction sent by the second terminal when the first terminal enters the preview mode after establishing a wireless connection with the second terminal through the connection establishment unit;

The enlargement unit 23 is configured to enlarge the preview image displayed on the display screen of the first terminal according to the enlargement instruction received by the enlargement instruction receiving unit;

The photographing unit 24 is configured to photograph according to the received photographing instruction.

Further, the selfie device 2 also includes:

a sliding instruction receiving unit, configured to receive a sliding instruction sent by the second terminal;

The moving unit is configured to move the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction received by the sliding instruction receiving unit.

Further, the selfie device 2 also includes:

a zoom instruction receiving unit, configured to receive a zoom instruction sent by the second terminal;

a scaling unit, configured to scale the preview image displayed on the display screen of the first terminal according to the scaling command received by the scaling command receiving unit.

Further, the photographing unit 24 includes:

The first camera module is configured to take pictures according to the camera instruction sent by the selfie stick; or

The second photographing module is configured to photograph according to the photographing instruction sent by the second terminal.

The self-portrait device provided by the embodiment of the present invention can be applied in the aforementioned first corresponding method embodiment. For details, refer to the description of the aforementioned first embodiment, which will not be repeated here.

Embodiment Three

FIG. 3 shows a specific structural block diagram of a terminal provided by Embodiment 3 of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown. The terminal 3 may be a mobile terminal, and the mobile terminal may be a smart phone or a tablet computer. The terminal 3 includes the Selfie device 2 described in the second embodiment, and the Selfie device 2 includes: a connection establishment unit 21 , an enlargement instruction receiving unit 22 , an enlargement unit 23 and a photographing unit 24 .

Wherein, the connection establishment unit 21 is configured to establish a wireless connection with the second terminal;

An enlargement instruction receiving unit 22, configured to receive an enlargement instruction sent by the second terminal when the first terminal enters the preview mode after establishing a wireless connection with the second terminal through the connection establishment unit;

The enlargement unit 23 is configured to enlarge the preview image displayed on the display screen of the first terminal according to the enlargement instruction received by the enlargement instruction receiving unit;

The photographing unit 24 is configured to photograph according to the received photographing instruction.

Further, the selfie device 2 also includes:

a sliding instruction receiving unit, configured to receive a sliding instruction sent by the second terminal;

The moving unit is configured to move the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction received by the sliding instruction receiving unit.

Further, the selfie device 2 also includes:

a zoom instruction receiving unit, configured to receive a zoom instruction sent by the second terminal;

a scaling unit, configured to scale the preview image displayed on the display screen of the first terminal according to the scaling command received by the scaling command receiving unit.

Further, the photographing unit 24 includes:

The first camera module is configured to take pictures according to the camera instruction sent by the selfie stick; or

The second photographing module is configured to photograph according to the photographing instruction sent by the second terminal.

The terminal provided by the embodiment of the present invention can be applied in the foregoing first corresponding method embodiment. For details, refer to the description of the foregoing first embodiment, which will not be repeated here.

Embodiment Four

FIG. 4 shows a specific structural block diagram of the Selfie device provided by Embodiment 2 of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown. The Selfie device 4 may be a software unit built in the terminal, a hardware unit or a combination of software and hardware. The Selfie device 4 includes: a connection establishment unit 41 and an enlargement instruction sending unit 42 .

Wherein, the connection establishment unit 41 is configured to establish a wireless connection with the first terminal;

An enlargement instruction sending unit 42, configured to send an enlargement instruction to the first terminal when the first terminal enters the preview mode after establishing a wireless connection with the first terminal through the connection establishment unit, and the first terminal performs an enlargement instruction to the first terminal according to the enlargement instruction. The preview screen displayed on the display screen of the terminal is enlarged.

Further, the Selfie device 4 also includes:

The sliding instruction sending unit is configured to send the sliding instruction to the first terminal, and the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the sliding instruction.

The selfie device 4 also includes:

The zoom instruction sending unit is configured to send the zoom instruction to the first terminal, and the first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction.

The self-portrait device provided by the embodiment of the present invention can be applied in the aforementioned first corresponding method embodiment. For details, refer to the description of the aforementioned first embodiment, which will not be repeated here.

Embodiment five

FIG. 5 shows a specific structural block diagram of a terminal provided by Embodiment 5 of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown. The terminal 5 may be a mobile terminal, and the mobile terminal may be a smart phone or a tablet computer. The terminal 5 includes the Selfie device 4 described in the fourth embodiment, and the Selfie device 4 includes: a connection establishment unit 41 and an enlargement instruction sending unit 42 .

Wherein, the connection establishment unit 41 is configured to establish a wireless connection with the first terminal;

An enlargement instruction sending unit 42, configured to send an enlargement instruction to the first terminal when the first terminal enters the preview mode after establishing a wireless connection with the first terminal through the connection establishment unit, and the first terminal performs an enlargement instruction to the first terminal according to the enlargement instruction. The preview screen displayed on the display screen of the terminal is enlarged.

Further, the Selfie device 4 also includes:

The sliding instruction sending unit is configured to send the sliding instruction to the first terminal, and the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the sliding instruction.

The selfie device 4 also includes:

The zoom instruction sending unit is configured to send the zoom instruction to the first terminal, and the first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction.

The terminal provided by the embodiment of the present invention can be applied in the foregoing first corresponding method embodiment. For details, refer to the description of the foregoing first embodiment, which will not be repeated here.

Embodiment six

FIG. 6 shows a specific structural block diagram of the Selfie system provided by Embodiment 6 of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown. The Selfie system 6 includes the terminal 3 described in the third embodiment and the terminal 5 described in the fifth embodiment. Wherein, the terminal described in Embodiment 3 is a terminal for previewing pictures of a family on a selfie stick, and the terminal described in Embodiment 5 is a remote controller for remotely controlling the terminal described in Embodiment 3. A wireless connection, such as a Bluetooth connection, can be established between two terminals. After the Bluetooth connection is established, the terminal described in Embodiment 5 can send a control command to the terminal described in Embodiment 3 through the Bluetooth module. The preview picture displayed on the display screen of the terminal mentioned above is processed by enlarging, overall moving and zooming, so that the user can clearly see the details of the user's face in the preview picture from a distance, and adjust the facial expression to take more beautiful photos .

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (16)

1. A method of using a selfie stick to take a selfie, comprising: The first terminal establishes a wireless connection with the second terminal, wherein the first terminal is a terminal for shooting and previewing pictures on the selfie stick; When the first terminal enters the preview mode, the first terminal receives an enlargement instruction sent by the second terminal; The first terminal zooms in on the preview screen displayed on the display screen of the first terminal according to the zoom-in instruction without performing a zoom operation on the first terminal; The first terminal takes pictures according to the received picture taking instruction. 2. The method according to claim 1, characterized in that, after the first terminal enlarges the preview image displayed on the display screen of the first terminal according to the zoom-in instruction, further comprising: The first terminal receives the sliding instruction sent by the second terminal; The first terminal moves the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction. 3. The method according to claim 2, further comprising: after the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the sliding instruction: The first terminal receives the scaling instruction sent by the second terminal; The first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction. 4. The method according to any one of claims 1 to 3, wherein the first terminal takes a photo according to the received photo instruction, comprising: The first terminal takes pictures according to the camera instruction sent by the selfie stick; or The first terminal takes pictures according to the picture taking instruction sent by the second terminal. 5. A device for taking selfies with a selfie stick, characterized in that it comprises: a connection establishing unit, configured to establish a wireless connection with the second terminal; The magnification command receiving unit is used to receive the magnification command sent by the second terminal when the first terminal enters the preview mode after establishing a wireless connection with the second terminal through the connection establishment unit, wherein the first terminal is a selfie stick for shooting and picture preview terminal; an enlargement unit, configured to enlarge the preview image displayed on the display screen of the first terminal on the display screen of the first terminal according to the enlargement instruction received by the enlargement instruction receiving unit without performing a zoom operation on the first terminal; The photographing unit is configured to photograph according to the received photographing instruction. 6. The device of claim 5, further comprising: a sliding instruction receiving unit, configured to receive a sliding instruction sent by the second terminal; The moving unit is configured to move the preview image displayed on the display screen of the first terminal as a whole according to the sliding instruction received by the sliding instruction receiving unit. 7. The device of claim 6, further comprising: a zoom instruction receiving unit, configured to receive a zoom instruction sent by the second terminal; a scaling unit, configured to scale the preview image displayed on the display screen of the first terminal according to the scaling command received by the scaling command receiving unit. 8. The device according to any one of claims 5 to 7, wherein the photographing unit comprises: The first camera module is configured to take photos according to the photo instruction sent by the selfie stick; or the second photo module is used to take photos according to the photo instruction sent by the second terminal. 9. A terminal, characterized by comprising the Selfie device according to any one of claims 5 to 8. 10. A device for taking selfies with a selfie stick, characterized in that it comprises: A connection establishment unit, configured to establish a wireless connection with the first terminal, wherein the first terminal is a terminal for shooting and previewing images on a selfie stick; An enlargement instruction sending unit, configured to send an enlargement instruction to the first terminal when the first terminal enters the preview mode after establishing a wireless connection with the first terminal through the connection establishment unit, and the first terminal sends an enlargement instruction to the first terminal according to the enlargement instruction The preview image displayed on the display screen of the first terminal is enlarged on the display screen of the first terminal without performing a zoom operation on the first terminal. 11. The device for taking selfies as claimed in claim 10, further comprising: The sliding instruction sending unit is configured to send the sliding instruction to the first terminal, and the first terminal moves the preview picture displayed on the display screen of the first terminal as a whole according to the sliding instruction. 12. The device for taking selfies as claimed in claim 11, further comprising: The zoom instruction sending unit is configured to send the zoom instruction to the first terminal, and the first terminal zooms the preview image displayed on the display screen of the first terminal according to the zoom instruction. 13. A terminal, characterized by comprising the Selfie device according to any one of claims 10-12. 14. A system for taking pictures, characterized in that it includes the terminal as claimed in claim 9 and the terminal as claimed in claim 13, and the terminal as claimed in claim 9 is a terminal for taking pictures and previewing images on a selfie stick . 15. The system for taking pictures according to claim 14, wherein the terminal is a mobile terminal. 16. The system for taking pictures according to claim 15, wherein the mobile terminal is a smart phone or a tablet computer.