CN104994292B - The control method and electric terminal of a kind of wide-angle camera - Google Patents

Abstract

The embodiment of the invention discloses the control method and electric terminal of a kind of wide-angle camera, this method includes：Electric terminal obtains the first preview screen by wide-angle camera, wherein, multiple characterization factors are included in the first preview screen；Whether electric terminal judges the fringe region of the first preview screen comprising characterization factor；If comprising electric terminal controls wide-angle camera to extend visual angle to fringe region.Using the present invention, wide field focus or shooting angle to judge whether to need to adjust camera are analyzed by the characterization factor to preview screen fringe region, if so, being adjusted automatically, improves focusing efficiency.

Description

A control method and electronic terminal of a wide-angle camera

technical field

The invention relates to the technical field of computers, in particular to a control method of a wide-angle camera and an electronic terminal.

Background technique

With the rapid development of electronic technology, the application of camera function is becoming more and more extensive and humanized. People can shoot various pictures as they like. Many photographers have reached a very high level of camera technology. For example, they can use light to Show different styles, be able to use the perspective to achieve the perfect combination of multiple scenes, etc.

However, no matter how good the technique is, photographers often encounter more difficult problems when taking group photos with a large number of people. If it is too large, the picture will be idle. In the prior art, the focal length is adjusted manually, which is inefficient and ineffective.

Contents of the invention

The embodiment of the present invention discloses a wide-angle camera control method and an electronic terminal. By analyzing the characteristic factors of the edge area of the preview screen, it is judged whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera. focus efficiency.

In a first aspect, an embodiment of the present invention provides a method for controlling a wide-angle camera, the method comprising:

The electronic terminal acquires a first preview picture through the wide-angle camera, wherein the first preview picture contains a plurality of feature factors;

The electronic terminal judges whether the edge area of the first preview picture contains the feature factor;

If included, the electronic terminal controls the wide-angle camera to extend the angle of view to the edge area.

With reference to the first aspect, in a first possible implementation manner of the first aspect, after the controlling the wide-angle camera to extend the angle of view to the edge area, performing the judging whether the edge area of the first preview image contains The eigenfactor step.

With reference to the first aspect, in a second possible implementation manner of the first aspect, after controlling the wide-angle camera to extend the angle of view to the edge area, when it is determined that the edge area does not contain the feature factor, Also includes:

The electronic terminal outputs a prompt message to prompt input of a shooting instruction;

The electronic terminal receives the shooting instruction;

The electronic terminal responds to the shooting instruction to shoot the first preview image.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the electronic terminal includes an ordinary camera for performing a shooting task in a default mode; before acquiring the first preview image through the wide-angle camera ,Also includes:

The electronic terminal obtains a second preview image through the ordinary camera in the default mode;

The electronic terminal judges whether the number of the feature factors in the second preview screen exceeds a preset value;

If it exceeds, the electronic terminal activates the wide-angle camera, so that the wide-angle camera acquires the first preview image.

In combination with the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, or the third possible implementation of the first aspect, the fourth possible implementation of the first aspect In an implementation manner, the edge area includes a first edge area and a second edge area, and the first edge area and the second edge area are located on opposite sides of the first preview image;

The judging whether the edge area of the first preview picture contains the feature factor includes:

judging whether both the first edge region and the second edge region contain the feature factor;

The controlling the wide-angle camera to extend the viewing angle to the edge area includes:

The wide-angle focal length of the wide-angle camera is adjusted to expand the viewing angle of the wide-angle camera.

In a second aspect, an embodiment of the present invention provides an electronic terminal, and the electronic terminal includes:

A first acquiring unit, configured to acquire a first preview picture through the wide-angle camera, wherein the first preview picture contains a plurality of feature factors;

A first judging unit, configured to judge whether the edge area of the first preview picture contains the feature factor;

A control unit, configured to control the wide-angle camera to extend the angle of view to the edge area when the determination result of the first determination unit is yes.

With reference to the second aspect, in a first possible implementation manner of the second aspect, after the control unit controls the wide-angle camera to extend the angle of view to the edge area, trigger the first judgment unit to judge the first preview Whether the edge area of the picture contains the feature factor.

In combination with the second aspect, in a second possible implementation manner of the second aspect, it also includes:

A prompting unit, configured to output a prompt message to prompt input of a shooting instruction after the control unit controls the wide-angle camera to extend the angle of view to the edge area so that the edge area does not contain the feature factor;

a receiving unit, configured to receive the shooting instruction;

The response unit is configured to respond to the shooting instruction and shoot the first preview image.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the electronic terminal includes an ordinary camera, configured to perform a shooting task in a default mode; and further includes:

a second acquiring unit, configured to acquire a second preview image through the common camera in the default mode;

A second judging unit, configured to judge whether the number of the feature factors in the second preview picture exceeds a preset value;

The starting unit is configured to start the wide-angle camera when the judgment result of the second judgment unit is yes, so that the wide-angle camera acquires the first preview image.

In combination with the second aspect, the first possible implementation of the second aspect, the second possible implementation of the second aspect, or the third possible implementation of the second aspect, the fourth possible implementation of the second aspect In an implementation manner, the edge area includes a first edge area and a second edge area, and the first edge area and the second edge area are located on opposite sides of the first preview image;

The first judging unit is specifically configured to judge whether both the first edge area and the second edge area contain the feature factor;

The control unit is specifically configured to adjust the wide-angle focal length of the wide-angle camera to expand the viewing angle of the wide-angle camera.

By implementing the embodiment of the present invention, the characteristic factors of the edge area of the preview image are analyzed to determine whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera, and if so, automatically adjust to improve focusing efficiency.

When adjusting the wide-angle focal length to a reasonable range, shoot after receiving the shooting command input by the user, which improves the user experience; The wide-angle camera is activated only when the picture meets the conditions for triggering the wide-angle camera, which further improves the user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of a method for controlling a wide-angle camera provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another method for controlling a wide-angle camera provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an electronic terminal provided by an embodiment of the present invention;

FIG. 3A is a schematic structural diagram of another electronic terminal provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another electronic terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another electronic terminal provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items. In addition, the terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

The electronic terminal described in the embodiment of the present invention can be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (MID, mobile internet device), a wearable device (such as a smart watch (such as iWatch, etc.), a smart bracelet, pedometer, etc.) or other terminal devices that can install and deploy instant messaging application clients. The electronic terminal is provided with a wide-angle camera. Due to its wide viewing angle, the wide-angle camera is usually used for taking group photos, such as group photos of people, birds, flowers, animals, etc. When shooting, if the edge position of the preview screen If there are all subjects, it means that the angle of view of the wide-angle camera is too small to capture all the target objects in the group photo. Therefore, it is necessary to expand the angle of view of the wide-angle camera so that the captured picture can fully display the target objects in the group photo.

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a method for controlling a wide-angle camera provided by an embodiment of the present invention. The method includes but is not limited to the following steps.

Step S101: The electronic terminal acquires a first preview image through a wide-angle camera, wherein the first preview image includes a plurality of feature factors.

Specifically, the electronic terminal is provided with a wide-angle camera. After the wide-angle camera is turned on, picture data can be acquired, and the acquired picture data is the first preview picture. A plurality of target objects with the same characteristics in the first preview picture are feature factors, such as when the first preview picture contains multiple human faces, the faces are feature factors; for another example, the first preview picture contains many objects of the same type When flowering, the flower is the feature factor.

Further, the electronic terminal may further include a display screen, and the electronic terminal displays the first preview image acquired by the wide-angle camera to the user through the display screen.

Step S102: the electronic terminal judges whether the edge area of the first preview image contains the feature factor.

Specifically, the edge area is a preset area, for example, an area whose distance to the edge of the first preview screen is between 0 and 1 cm; for another example, the distance to the edge of the first preview screen is between 0 and 5%. area of the screen width.

It should be noted that in practical applications, relevant values can be set according to needs; in addition, the above two ways of defining the edge area are only some optional ways, and other ways will not be exemplified here.

Furthermore, the eigenfactor has certain characteristics, and this characteristic can be reflected by the data. When judging whether the edge area contains the eigenfactor, it can be specifically judged whether the edge area has the above-mentioned data characteristics. If so, it means that the edge area has the eigenfactor .

Step S103: If it is included, the electronic terminal controls the wide-angle camera to extend the angle of view to the edge area.

Specifically, when the edge of the first preview image also contains feature factors, it indicates that there may be feature factors that have not been captured by the wide-angle camera, so it is necessary to view the edge area to capture feature factors that may not be captured.

In an optional solution, the way to extend the viewing angle may be: the electronic terminal controls the rotation of the wide-angle camera so that the shooting angle of the wide-angle camera is adjusted toward the edge area, wherein the wide-angle camera is movably connected to the electronic terminal.

In yet another optional solution, the manner of extending the viewing angle may be: the electronic terminal controls the wide-angle focal length of the wide-angle camera to increase the viewing angle range of the wide-angle camera, and then captures pictures around the edge area.

In yet another optional solution, the manner of extending the viewing angle may be: the electronic terminal outputs prompt information to prompt the user to adjust the angle or position of the electronic terminal.

For example, in the graduation season, college students take a group photo of the whole class through a mobile phone with a wide-angle camera. The wide-angle camera will first obtain the first preview image and display the first preview image on the touch screen of the mobile phone , each student in the first preview screen is a feature factor, and the electronic terminal analyzes whether there are students in the edge area of the first preview screen, and if so, extends the viewing angle to the edge area to capture all the students to the second in a preview screen.

With reference to the embodiment in FIG. 1 , in an optional solution, after controlling the wide-angle camera to extend the angle of view to the edge area, the step of judging whether the edge area of the first preview image contains the feature factor is performed.

Specifically, while extending the viewing angle, the electronic terminal judges whether there is any feature factor in the edge area, and if so, further adjusts the viewing angle until the edge area no longer contains the feature factor.

In conjunction with the embodiment of FIG. 1 , in an optional solution, after controlling the wide-angle camera to extend the angle of view to the edge area, when it is determined that the edge area does not contain a feature factor, it further includes: the electronic terminal outputs a prompt message to prompt input of a shooting instruction ; The electronic terminal receives the shooting instruction; the electronic terminal responds to the shooting instruction and shoots the first preview image.

Specifically, when the electronic terminal adjusts the viewing angle so that the edge region no longer includes the feature factor, the electronic terminal prompts the user to take a picture, and takes a first preview picture after detecting the shooting operation input by the user.

With reference to the embodiment of FIG. 1, in an optional solution, the edge area includes a first edge area and a second edge area, and the first edge area and the second edge area are located on opposite sides of the first preview image; judging Whether the edge area of the first preview image contains feature factors, including: judging whether the first edge area and the second edge area all contain feature factors; controlling the wide-angle camera to extend the viewing angle to the edge area, including: adjusting the wide-angle focal length of the wide-angle camera to expand the wide-angle The angle of view of the camera.

Specifically, the first preview image acquired by the electronic terminal contains two opposite edge areas. When judging whether the edge areas contain feature factors, if it is judged that both edge areas contain feature factors, it means that the shooting angle of the wide-angle camera of the electronic terminal is There may not be a problem, but the viewing angle of the wide-angle camera is relatively small, so the electronic terminal adjusts the wide-angle angle of the wide-angle camera to expand the viewing angle of the wide-angle camera.

In the control method of the wide-angle camera described in FIG. 1 , the characteristic factors of the edge area of the preview image are analyzed to determine whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera, and if so, automatically adjust to improve focusing efficiency.

Please refer to FIG. 2 . FIG. 2 is a schematic flowchart of another method for controlling a wide-angle camera provided by an embodiment of the present invention. The method includes but is not limited to the following steps.

Step S201: The electronic terminal obtains a second preview image through a common camera in a default mode.

Specifically, the electronic terminal includes a normal camera and a wide-angle camera, wherein the normal camera is a camera used by the electronic terminal to acquire shooting data in a default mode, and the second preview picture is a picture acquired through the normal camera. The wide-angle camera requires the user to input a switching command to switch, or the switching is automatically triggered when the relevant parameters in the electronic terminal meet the preset conditions. The shooting angle of view of the wide-angle camera is larger than that of the ordinary camera, and the photos taken have a fisheye effect.

Step S202: the electronic terminal determines whether the number of feature factors in the second preview image exceeds a preset value.

Specifically, after acquiring the second preview image through the ordinary camera, the electronic terminal automatically judges whether there are more target objects of the same type in the second preview image (if there are, these target objects are all feature factors), for example, the Whether there are more people, flowers of the same type, etc., if so, then further judge whether the number of feature factors exceeds the preset value. When it is judged that the feature factor in the second preview picture is a character, the preset value can be set to 5, and it is judged whether the number of people in the second preview picture exceeds 5. Of course, the preset value should be set according to needs, the above-mentioned The default value of 5 mentioned is for example only.

Step S203: If it exceeds, the electronic terminal activates the wide-angle camera, so that the electronic terminal acquires a first preview image through the wide-angle camera, wherein the first preview image includes a plurality of feature factors.

Specifically, when it is determined that the number of characteristic factors exceeds a preset value, the electronic terminal switches cameras so that the wide-angle camera acquires the first preview image.

Further, the electronic terminal may further include a display screen, and the electronic terminal displays the first preview image acquired by the wide-angle camera to the user through the display screen.

Step S204: the electronic terminal determines whether the edge area of the first preview image contains the feature factor.

Specifically, the edge area is a preset area, for example, an area whose distance to the edge of the first preview screen is between 0 and 1 cm; for another example, the distance to the edge of the first preview screen is between 0 and 5%. area of the screen width.

It should be noted that in practical applications, relevant values can be set according to needs; in addition, the above two ways of defining the edge area are only some optional ways, and other ways will not be exemplified here.

Furthermore, the eigenfactor has certain characteristics, and this characteristic can be reflected by the data. When judging whether the edge area contains the eigenfactor, it can be specifically judged whether the edge area has the above-mentioned data characteristics. If so, it means that the edge area has the eigenfactor .

Step S205: If it is included, the electronic terminal controls the wide-angle camera to extend the angle of view to the edge area.

Specifically, when the edge of the first preview image also contains feature factors, it indicates that there may be feature factors that have not been captured by the wide-angle camera, so it is necessary to view the edge area to capture feature factors that may not be captured.

In an optional solution, the way to extend the viewing angle may be: the electronic terminal controls the rotation of the wide-angle camera so that the shooting angle of the wide-angle camera is adjusted toward the edge area, wherein the wide-angle camera is movably connected to the electronic terminal.

In yet another optional solution, the manner of extending the viewing angle may be: the electronic terminal controls the wide-angle focal length of the wide-angle camera to increase the viewing angle range of the wide-angle camera, and then captures pictures around the edge area.

In yet another optional solution, the manner of extending the viewing angle may be: the electronic terminal outputs prompt information to prompt the user to adjust the angle or position of the electronic terminal.

For example, in the graduation season, college students take a group photo of the whole class through a mobile phone with a wide-angle camera. The wide-angle camera will first obtain the first preview image and display the first preview image on the touch screen of the mobile phone , each student in the first preview screen is a feature factor, and the electronic terminal analyzes whether there are students in the edge area of the first preview screen, and if so, extends the viewing angle to the edge area to capture all the students to the second in a preview screen.

In the control method of the wide-angle camera described in FIG. 2 , the characteristic factors of the edge area of the preview image are analyzed to determine whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera, and if so, automatically adjust to improve focusing efficiency.

When adjusting the wide-angle focal length to a reasonable range, shoot after receiving the shooting command input by the user, which improves the user experience; The wide-angle camera is activated only when the picture meets the conditions for triggering the wide-angle camera, which further improves the user experience.

The method of the embodiment of the present invention has been described in detail above. In order to facilitate better implementation of the above solution of the embodiment of the present invention, correspondingly, the following provides the device of the embodiment of the present invention.

Please refer to FIG. 3. FIG. 3 is a schematic structural diagram of an electronic terminal 30 provided by an embodiment of the present invention. The electronic terminal 30 may include a first acquiring unit 301, a first judging unit 302, and a control unit 303, wherein each unit The detailed description is as follows.

The first acquiring unit 301 is configured to acquire a first preview picture through a wide-angle camera, wherein the first preview picture includes a plurality of feature factors.

Specifically, the electronic terminal is provided with a wide-angle camera, and the first acquiring unit 301 acquires picture data through the wide-angle camera, and the acquired picture data is the first preview picture. A plurality of target objects with the same characteristics in the first preview picture are feature factors, such as when the first preview picture contains multiple human faces, the faces are feature factors; for another example, the first preview picture contains many objects of the same type When flowering, the flower is the feature factor.

Further, the electronic terminal may further include a display screen, and the electronic terminal 30 displays the first preview image obtained by the first obtaining unit 301 to the user through the display screen.

The first judging unit 302 is used for judging whether the edge area of the first preview picture contains the feature factor.

Specifically, the edge area is a preset area, for example, an area whose distance to the edge of the first preview screen is between 0 and 1 cm; for another example, the distance to the edge of the first preview screen is between 0 and 5%. area of the screen width.

It should be noted that in practical applications, relevant values can be set according to needs; in addition, the above two ways of defining the edge area are only some optional ways, and other ways will not be exemplified here.

Furthermore, the eigenfactor has certain characteristics, and this characteristic can be reflected by the data. When judging whether the edge area contains the eigenfactor, it can be specifically judged whether the edge area has the above-mentioned data characteristics. If so, it means that the edge area has the eigenfactor .

The control unit 303 is configured to control the wide-angle camera to extend the viewing angle to the edge area when the determination result of the first determination unit is yes.

Specifically, when the edge of the first preview image also contains feature factors, it indicates that there may be feature factors that have not been captured by the wide-angle camera, so it is necessary to view the edge area to capture feature factors that may not be captured.

In an optional solution, the manner of extending the viewing angle may be: the control unit 303 controls the rotation of the wide-angle camera so that the shooting angle of the wide-angle camera is adjusted toward the edge area, wherein the wide-angle camera is movably connected with the electronic terminal.

In yet another optional solution, the manner of extending the viewing angle may be: the control unit 303 controls the wide-angle focal length of the wide-angle camera to increase the viewing angle range of the wide-angle camera, and then capture pictures around the edge area.

In yet another optional solution, the manner of extending the viewing angle may be: the control unit 303 outputs prompt information to prompt the user to adjust the angle or position of the electronic terminal.

For example, in the graduation season, college students take a group photo of the whole class through a mobile phone with a wide-angle camera, the first acquisition unit 301 will first obtain the first preview image, and display the first preview image on the touch screen of the mobile phone. On the display screen, each student in the first preview picture is a feature factor, and the first judging unit 302 analyzes whether there are students in the edge area of the first preview picture, and if so, triggers the control unit 303 to extend the viewing angle to the edge area, to capture all the students in the first preview screen.

With reference to the embodiment shown in FIG. 3 , in an optional solution, after the control unit 303 controls the wide-angle camera to extend the angle of view to the edge area, it triggers the first determination unit 302 to determine whether the edge area of the first preview image contains feature factors.

Specifically, the control unit 303 triggers the judging unit 303 to judge whether there are feature factors in the edge area while extending the viewing angle, and if so, further adjusts the viewing angle until the edge area no longer contains feature factors.

In conjunction with the embodiment shown in FIG. 3 , in an optional solution, the electronic terminal 30 has the structure shown in FIG. 3A . In FIG. In addition to the control unit 303, it may further include a prompt unit 304, a receiving unit 305, and a response unit 306, wherein the detailed description of the prompt unit 304, the receiving unit 305, and the response unit 306 is as follows.

The prompt unit 304 is configured to output a prompt message to prompt input of a shooting instruction after the control unit controls 303 the wide-angle camera to extend the angle of view to the edge area so that the edge area does not contain the feature factor.

The receiving unit 305 is configured to receive a shooting instruction.

The response unit 306 is configured to respond to the shooting instruction and shoot the first preview image.

Specifically, when the control unit 303 adjusts the viewing angle so that the edge region no longer contains the feature factor, the prompt unit 304 prompts the user to take a picture, and after detecting the shooting operation input by the user, the response unit 306 takes a first preview image.

It should be noted that, in the embodiment of the present invention, the specific implementation of each unit may also refer to the corresponding description of the method embodiment shown in FIG. 1 .

In the electronic terminal 30 described in FIG. 3 , the characteristic factors of the edge area of the preview image are analyzed to determine whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera, and if so, automatically adjust to improve focusing efficiency.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of another electronic terminal 30 provided by an embodiment of the present invention. In addition to the first acquisition unit 301, the first judgment unit 302 and the control unit 303, the electronic terminal 30 may also include The second acquiring unit 307, the second judging unit 308, and the starting unit 309, wherein the detailed description of each unit is as follows.

The second acquisition unit 307 is configured to acquire a second preview image through a common camera in a default mode.

Specifically, the electronic terminal includes a normal camera and a wide-angle camera, wherein the normal camera is a camera that the electronic terminal acquires shooting data in a default mode, and the second preview picture is a picture captured by the normal camera triggered by the second acquisition unit 307 . The wide-angle camera requires the user to input a switching command to switch, or the switching is automatically triggered when the relevant parameters in the electronic terminal meet the preset conditions. The shooting angle of view of the wide-angle camera is larger than that of the ordinary camera, and the photos taken have a fisheye effect.

The second judging unit 308 is used for judging whether the number of feature factors in the second preview image exceeds a preset value.

Specifically, after the second acquiring unit 307 acquires the second preview image, the second judging unit 308 automatically judges whether there are more target objects of the same type in the second preview image (if so, these target objects are all feature factors) , For example, whether there are more people, flowers of the same type, etc. in the picture, and if so, further determine whether the number of feature factors exceeds a preset value. When it is judged that the feature factor in the second preview picture is a character, the preset value can be set to 5, and it is judged whether the number of people in the second preview picture exceeds 5. Of course, the preset value should be set according to needs, the above-mentioned The default value of 5 mentioned is for example only.

The starting unit 309 is configured to start the wide-angle camera so that the wide-angle camera acquires the first preview image when the determination result of the second determination unit is yes.

Specifically, when the second judging unit 308 judges that the number of characteristic factors exceeds a preset value, the triggering unit 309 is triggered to switch cameras, so that the wide-angle camera acquires the first preview image.

Further, the electronic terminal may further include a display screen, and the electronic terminal displays the second preview image obtained by the second obtaining unit 307 to the user through the display screen.

It should be noted that, in the embodiment of the present invention, the specific implementation of each unit may also refer to the corresponding description of the method embodiment shown in FIG. 2 .

In the electronic terminal 30 described in FIG. 4 , the characteristic factors of the edge area of the preview image are analyzed to determine whether it is necessary to adjust the wide-angle focal length or shooting angle of the camera, and if so, automatically adjust to improve focusing efficiency.

When adjusting the wide-angle focal length to a reasonable range, shoot after receiving the shooting command input by the user, which improves the user experience; The wide-angle camera is activated only when the picture meets the conditions for triggering the wide-angle camera, which further improves the user experience.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of another electronic terminal 50 provided by an embodiment of the present invention. The electronic terminal 50 may include: at least one processor 501, such as a CPU, at least one network interface 504, and a user interface 503. memory 505 , at least one communication bus 502 and display 506 . Wherein, the communication bus 502 is used to realize connection and communication between these components. Wherein, the user interface 503 may include a display screen (Displ5y) 506, and the optional user interface 503 may also include a standard wired interface and a wireless interface. Optionally, the communication interface 504 may include a standard wired interface (such as a data cable interface, a network cable interface, etc.), a wireless interface (such as a WI-FI interface, a Bluetooth interface, and a near field communication interface). The memory 505 may be a high-speed R5M memory, or a non-volume tile memory, such as at least one disk memory. Optionally, the memory 505 may also be at least one storage device located away from the aforementioned processor 501 . As shown in FIG. 5 , the memory 505 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a control program.

In the electronic terminal 50 shown in FIG. 5 , the communication interface 504 is mainly used to connect the second terminal and perform data communication with the second terminal; and the processor 501 can be used to call the control program stored in the memory 505 and perform the following operations :

The electronic terminal acquires a first preview picture through the wide-angle camera, wherein the first preview picture contains a plurality of feature factors;

The electronic terminal judges whether the edge area of the first preview picture contains the feature factor;

If included, the electronic terminal controls the wide-angle camera to extend the angle of view to the edge area.

Further, after controlling the wide-angle camera to extend the angle of view to the edge area, the step of judging whether the edge area of the first preview image contains the feature factor is performed.

Further, after controlling the wide-angle camera to extend the angle of view to the edge area, when it is determined that the edge area does not contain the feature factor, it also includes:

The electronic terminal outputs a prompt message to prompt input of a shooting instruction;

The electronic terminal receives the shooting instruction;

The electronic terminal responds to the shooting instruction to shoot the first preview image.

Further, the electronic terminal includes an ordinary camera for performing shooting tasks in a default mode; before acquiring the first preview image through the wide-angle camera, it also includes:

The electronic terminal obtains a second preview image through the ordinary camera in the default mode;

The electronic terminal judges whether the number of the feature factors in the second preview screen exceeds a preset value;

If it exceeds, the electronic terminal activates the wide-angle camera, so that the wide-angle camera acquires the first preview image.

Further, the edge area includes a first edge area and a second edge area, and the first edge area and the second edge area are located on opposite sides of the first preview image;

The judging whether the edge area of the first preview picture contains the feature factor includes:

judging whether both the first edge region and the second edge region contain the feature factor;

The controlling the wide-angle camera to extend the viewing angle to the edge area includes:

The wide-angle focal length of the wide-angle camera is adjusted to expand the viewing angle of the wide-angle camera.

In summary, through the implementation of the embodiment of the present invention, it is judged whether it is necessary to adjust the wide-angle focal length or the shooting angle of the camera by analyzing the characteristic factors of the edge area of the preview image, and if so, it is automatically adjusted to improve the focusing efficiency.

When adjusting the wide-angle focal length to a reasonable range, shoot after receiving the shooting command input by the user, which improves the user experience; The wide-angle camera is activated only when the picture meets the conditions for triggering the wide-angle camera, which further improves the user experience.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM) and the like.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand all or part of the process for realizing the above embodiments, and according to the rights of the present invention The equivalent changes required still belong to the scope covered by the invention.

Claims (6)

1. A control method for a wide-angle camera, comprising: The electronic terminal obtains the second preview image through the ordinary camera in the default mode; The electronic terminal judges whether the number of feature factors in the second preview screen exceeds a preset value; If it exceeds, the electronic terminal starts the wide-angle camera so that the wide-angle camera acquires a first preview picture, wherein the first preview picture includes a plurality of characteristic factors; The electronic terminal judges whether the edge area of the first preview picture contains the feature factor; If included, the electronic terminal controls the wide-angle camera to extend the viewing angle to the edge area, The method of extending the viewing angle is: adjusting the wide-angle focal length of the wide-angle camera to expand the viewing angle of the wide-angle camera; When it is judged that the edge region does not contain the feature factor: The electronic terminal outputs a prompt message to prompt input of a shooting instruction; The electronic terminal receives the shooting instruction; The electronic terminal responds to the shooting instruction to shoot the first preview image. 2. The method according to claim 1, wherein after controlling the wide-angle camera to extend the angle of view to the edge area, performing the judging whether the edge area of the first preview image contains the feature factor A step of. 3. The method according to any one of claims 1-2, wherein the edge area comprises a first edge area and a second edge area, and the first edge area and the second edge area are located at the opposite sides in the first preview frame; The judging whether the edge area of the first preview picture contains the feature factor includes: Judging whether both the first edge area and the second edge area contain the feature factor. 4. An electronic terminal, characterized in that, comprising: The second acquisition unit is used to acquire the second preview image through the common camera in the default mode; A second judging unit, configured to judge whether the number of feature factors in the second preview picture exceeds a preset value; A starting unit, configured to start the wide-angle camera when the judgment result of the second judging unit is yes; A first acquiring unit, configured to acquire a first preview picture through the wide-angle camera, wherein the first preview picture contains a plurality of feature factors; A first judging unit, configured to judge whether the edge area of the first preview picture contains the feature factor; The control unit is configured to control the wide-angle camera to extend the angle of view to the edge area when the judgment result of the first judgment unit is yes, and the way to extend the angle of view is: adjust the wide-angle focal length of the wide-angle camera to expand the The angle of view of the wide-angle camera; A prompting unit, configured to output a prompt message to prompt input of a shooting instruction after the control unit controls the wide-angle camera to extend the angle of view to the edge area so that the edge area does not contain the feature factor; a receiving unit, configured to receive the shooting instruction; The response unit is configured to respond to the shooting instruction and shoot the first preview image. 5. The electronic terminal according to claim 4, characterized in that, After the control unit controls the wide-angle camera to extend the angle of view to the edge area, the first judging unit is triggered to judge whether the edge area of the first preview image contains the feature factor. 6. The electronic terminal according to any one of claims 4-5, wherein the edge area includes a first edge area and a second edge area, and the first edge area and the second edge area are located at opposite sides in the first preview frame; The first judging unit is specifically configured to judge whether both the first edge area and the second edge area contain the feature factor; The control unit is specifically configured to adjust the wide-angle focal length of the wide-angle camera to expand the viewing angle of the wide-angle camera.