CN117546071A

CN117546071A - Zoom method, zoom device, electronic apparatus, and storage medium

Info

Publication number: CN117546071A
Application number: CN202280004291.4A
Authority: CN
Inventors: 姚海强
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2024-02-09
Also published as: WO2023230860A1

Abstract

The disclosure relates to a zooming method, a zooming device, an electronic device and a storage medium. The zooming method comprises the following steps: invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment; receiving a zooming instruction, wherein the zooming instruction at least comprises an indication zooming multiple requiring zooming of a lens; determining a second lens corresponding to the indicated zoom multiple as a slave image pickup lens when the lens is switched according to the received indicated zoom multiple; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens; and carrying out zoom multiple adjustment based on the first lens and the second lens. Since the first lens with the maximum field angle is switched to the slave imaging lens with the field angle smaller than the first lens, the switching to the slave imaging lens can be completed once when the digital zoom adjustment is realized, thereby being beneficial to improving the smoothness of image shooting.

Description

Zoom method, zoom device, electronic apparatus, and storage medium

Technical Field

The disclosure relates to the field of electronic technology, and in particular, to a zooming method, a zooming device, electronic equipment and a storage medium.

Background

With the rapid development of electronic technology, electronic devices such as smartphones are becoming increasingly functional. Among them, the photographing function has become an indispensable function for electronic devices such as smart phones. In particular, for an electronic device having a plurality of imaging lenses, in a photographing or image capturing process by a photographing function in a multi-shot scene, a zooming operation is sometimes required to adapt to the shooting scene. However, in the related art, there is a shooting jam problem in the zooming operation.

Disclosure of Invention

The present disclosure provides a zoom method, a zoom apparatus, an electronic device, and a storage medium.

In a first aspect of an embodiment of the present disclosure, there is provided a zooming method including:

invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

receiving a zooming instruction, wherein the zooming instruction at least comprises an indication zooming multiple which needs zooming of a lens;

determining a second lens corresponding to the indicated zoom multiple as a slave image pickup lens when the lens is switched according to the received indicated zoom multiple; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

And adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens.

In some embodiments, the adjusting the zoom magnification of the electronic device based on the first lens and the second lens includes:

adjusting the preview image to a preset state in a preview window based on the first lens and the second lens; wherein the predetermined state is determined by an image acquired by the second lens.

In some embodiments, the adjusting the preview image to a predetermined state in a preview window based on the first shot and the second shot includes:

determining a first coordinate position of the object to be shot in the preview image and a second coordinate position of the object to be shot in the image acquired by the second lens;

determining an image center offset and an image rotation angle of the preview image in a preview window in the zooming process based on the first coordinate position and the second coordinate position; the image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window;

And adjusting the preview image to the preset state based on the image center offset and/or the image rotation angle.

determining the relative position of the first lens and the second lens;

determining a zooming parameter when the electronic equipment zooms from the first lens to the second lens according to the relative positions of the first lens and the second lens;

according to the zoom parameter, adjusting the presentation state of the preview image in a preview window to the preset state; wherein the zoom parameter at least comprises an image center offset and an image rotation angle;

the image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window.

In some embodiments, the adjusting the zoom magnification of the electronic device based on the first lens and the second lens further includes:

After adjusting the preview image to a preset state in the preview window, adjusting the current background information of the preview window to be consistent with the background information of the preview window before zooming; and

After adjusting the preview image to a preset state in the preview window, adjusting the current focusing information of the preview window to be consistent with the focusing information of the preview window before zooming; wherein the context information includes at least one of: background brightness, background color; the focusing information includes at least one of: focusing area, focusing mode, focusing distance.

In some embodiments, the plurality of lenses includes at least:

the first lens having a first angle of view corresponding to a first zoom factor;

a second lens having a second angle of view corresponding to a second zoom factor;

a second lens having a third angle of view corresponding to a third zoom factor; wherein the first angle of view is greater than the second angle of view, the second angle of view is greater than the third angle of view, the third zoom factor is greater than the second zoom factor, and the second zoom factor is greater than the first zoom factor;

if the received zoom multiple is a predetermined zoom multiple, determining that the second lens corresponding to the predetermined zoom multiple is a slave imaging lens when performing lens switching, including:

If the preset zoom multiple is a second zoom multiple, determining a second lens corresponding to the second zoom multiple as the slave imaging lens;

and if the preset zoom multiple is a third zoom multiple, determining that the second lens corresponding to the third zoom multiple is the slave imaging lens.

A second aspect of the embodiments of the present disclosure provides a zoom apparatus, comprising:

the first processing unit is used for calling the first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

the second processing unit is used for receiving a zooming instruction, and the zooming instruction at least comprises an indication zooming multiple which needs zooming of the lens;

a third processing unit, configured to determine, according to the received indicated zoom multiple, that a second lens corresponding to the indicated zoom multiple is a slave imaging lens when performing lens switching; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

and the fourth processing unit is used for adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens.

In some embodiments, the fourth processing unit is configured to

Determining the relative position of the first lens and the second lens;

In some embodiments, the fourth processing unit is configured to

In some embodiments, the plurality of lenses includes at least:

the third processing unit is used for

In a third aspect of the disclosed embodiments, there is provided an electronic device, including: a plurality of lenses that can be used as a master imaging lens or a slave imaging lens; wherein the first lens has a maximum field angle;

a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is adapted to perform the steps of the method of the first aspect when the computer program is run.

A fourth aspect of embodiments of the present disclosure provides a computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the method of the first aspect.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

the zooming method in the embodiment of the disclosure comprises the following steps: invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment; receiving a zooming instruction, wherein the zooming instruction at least comprises an indication zooming multiple requiring zooming of a lens; determining a second lens corresponding to the indicated zoom multiple as a slave image pickup lens when the lens is switched according to the received indicated zoom multiple; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens; and adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens. Before the zoom multiple adjustment is determined, the first lens with the largest field angle is used as the main shooting lens for acquiring the preview image, and then the first lens is used as the main shooting lens to switch the lens from the shooting lens to realize the zoom multiple adjustment.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 is a flow chart of a zoom method according to an exemplary embodiment.

Fig. 2 is a schematic view of different angles of view for a plurality of imaging lenses, according to an example embodiment.

Fig. 3 is a diagram illustrating a preview window information synchronization process before a zoom lens is switched according to an exemplary embodiment.

Fig. 4 is a schematic diagram showing a structure of a zoom apparatus according to an exemplary embodiment.

Fig. 5 is a schematic view of an application scenario of an electronic device with a photographing function according to an exemplary embodiment.

Fig. 6 is a block diagram of an electronic device, according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Referring to fig. 1, a zoom method according to an embodiment of the disclosure is shown. Fig. 1 is a flow chart of a zoom method according to an exemplary embodiment. As shown in fig. 1, the zooming method includes:

Step 10, calling a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

step 11, receiving a zooming instruction, wherein the zooming instruction at least comprises an indication zooming multiple requiring zooming of a lens;

step 12, determining a second lens corresponding to the indicated zoom multiple as a slave imaging lens when the lens is switched according to the received indicated zoom multiple; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

and step 13, adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens.

In the embodiment of the disclosure, the zooming method is applied to electronic equipment with a plurality of imaging lenses to perform multi-shot scene shooting. The plurality of lenses respectively have different angles of view, the plurality of lenses comprise a first lens and one or more second lenses, and the first lens has a maximum angle of view. The zoom factor corresponding to lenses having different angles of view is different. For example, a first lens corresponds to a first zoom magnification, a second lens corresponds to a second zoom magnification, and so on. The zoom multiple of the second lens corresponds to the indicated zoom multiple or the zoom multiple corresponding to the second lens comprises the indicated zoom multiple.

Please refer to fig. 2, which illustrates different angles of view corresponding to a plurality of imaging lenses. Fig. 2 is a schematic view of different angles of view for a plurality of imaging lenses, according to an example embodiment. As shown in fig. 2, the first angle of view is greater than the standard angle of view, which is greater than the second angle of view, which is greater than the third angle of view; the zoom multiple corresponding to the first lens with the first field angle can be 0-0.5 x; the zoom multiple corresponding to the lens with the standard field angle can be 1.0 x-2.0 x; the zoom multiple corresponding to the lens with the second field angle can be 2.0 x-5.0 x; the lens having the third angle of view may correspond to a zoom factor of greater than 5.0x.

In the application, before zoom multiple adjustment, a first lens with a maximum field angle is called to acquire a preview image. If the electronic device defaults to a first lens that is not at the maximum field angle when the image capturing function is started, the system may be set after the electronic device starts the image capturing function, and after a predetermined number of images (for example, 2 frames of images or 3 frames of images) are presented in the preview window, the first lens with the maximum field angle is called to acquire the preview image. When the electronic device receives the zoom instruction, determining which lens is taken as the slave imaging lens according to the received zoom multiple. For example, when the received zoom magnification is 2.0x and the predetermined zoom magnification corresponds to a lens having the second angle of view, the lens having the second angle of view is set as the slave imaging lens, and the first lens is switched to the slave imaging lens.

The zooming method in the embodiment of the disclosure comprises the following steps: invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment; receiving a zooming instruction, wherein the zooming instruction at least comprises zooming multiples needing zooming of a lens; if the received zoom multiple is a preset zoom multiple, determining that a second lens corresponding to the preset zoom multiple is a slave imaging lens when the lens is switched; wherein the predetermined zoom factor is different from a zoom factor corresponding to the first lens; and adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens. Before zoom multiple adjustment is determined, the first lens with the largest field angle is used as the main shooting lens for acquiring the preview image, and then the first lens is used as the main shooting lens to switch the lens from the shooting lens to realize zoom multiple adjustment.

Meanwhile, in the embodiment of the disclosure, when the zoom multiple adjustment is needed to be performed next time based on lens switching, before the zoom multiple adjustment is performed, the first lens is still directly called as the main shooting lens to obtain the preview image of the object to be shot. Then, the first lens is used as a main imaging lens to be subjected to lens switching to a slave imaging lens to realize zoom multiple adjustment.

In the embodiment of the disclosure, the preview image acquired by the first lens is different from the state of the image acquired by the second lens in the preview window. When adjusting the corresponding preview image, the preview image acquired by the first lens needs to be adjusted to a predetermined state determined by the image acquired by the second lens. The predetermined state determined by the image acquired by the second lens is a state that the image acquired by the second lens needs to be presented in the preview window according to the zoom multiple, and can be understood as an image state that the second lens can acquire when the second lens is used as the main camera lens to directly acquire the image in the preview window under the zoom multiple. When the preview image acquired by the first lens is adjusted to a predetermined state determined by the image acquired by the second lens, it may be determined that the zoom magnification adjustment is completed.

In some embodiments of the present invention, in some embodiments,

the adjusting the preview image to a predetermined state in a preview window based on the first shot and the second shot includes:

In the embodiment of the disclosure, the zooming of the electronic device is digital zooming. In the zooming process, the preview state change of the preview image can be realized in the preview window. Wherein the predetermined state includes at least a predetermined position and a predetermined rotation angle. When the preview image is changed, the change of the preview image acquired by the first lens relative to the image acquired by the second lens can be determined. In the image processing, the image center offset and/or the image rotation angle when the preview image is close to the image acquired by the second lens can be determined by taking the preview image and the image acquired by the second lens as inputs and inputting the inputs into a transformation matrix algorithm. The image center offset is used for adjusting the offset of the preview image moving in the preview window to reach a preset position, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window to reach a preset rotation angle. And the zooming process is completed by adjusting the image center offset and the image rotation angle of the preview image in the preview window.

When the adjustment of the preview image is completed, the zoom multiple adjustment is realized, and at the moment, the second lens can be switched to the main shooting lens for acquiring the preview image, so that the lens switching is completed. In this process, the first lens is the lens with the largest angle of view, so the preview image may include the photographed object in the image acquired by the second lens, and when the image adjustment is performed, the image center offset and/or the image rotation angle of the preview image may be determined based on the same photographed object in the image acquired by the preview image and the second lens, so the zooming may be completed at one time. If the angle of view of the main camera lens is not the maximum angle of view, the preview image acquired by the main camera lens and the image acquired by the second camera lens may not contain the same photographic object, and the main camera lens is automatically transformed to continuously acquire the preview image in the zooming process to search the preview image with the same photographic object, and the continuous switching of the camera lens in the process can influence the preview fluency to cause preview blocking. However, in the application, the first lens with the largest field angle is used as the main shooting lens, so that the preview fluency can be improved, and the preview blocking phenomenon can be reduced.

In some embodiments of the present invention, in some embodiments,

determining the relative position of the first lens and the second lens;

In the embodiment of the disclosure, when the first lens is adopted as the main imaging lens, when the obtained preview image and the image obtained by the second lens do not have the same shooting object, the image center offset and the image rotation angle for adjusting the presentation state of the preview image in the preview window can be determined according to the relative positions of the first lens and the second lens.

after adjusting the preview image to a preset position in the preview window, adjusting the current background information of the preview window to be consistent with the background information of the preview window before zooming; and

After adjusting the preview image to a preset position in the preview window, adjusting the current focusing information of the preview window to be consistent with the focusing information of the preview window before zooming; wherein the context information includes at least one of: background brightness, background color; the focusing information includes at least one of: focusing area, focusing mode, focusing distance.

In the embodiment of the disclosure, in order to improve the display effect of the preview image in the zooming process, when the preview image is displayed in the preview window after adjustment is completed, the current background information of the preview window can be adjusted to be consistent with the background information of the preview window before zooming, including the background information being consistent with the focusing information. The background information comprises background brightness and background color; the focusing information includes: focusing area, focusing mode, focusing distance. The focusing mode may include at least: single auto-focus, auto-servo focus, continuous auto-focus, etc. Fig. 3 is a diagram illustrating a preview window information synchronization process before a zoom lens is switched according to an exemplary embodiment. As shown in fig. 3, req N in the drawing represents a factor that needs to be synchronized in the preview window when the master camera lens switches to the slave camera lens after the image adjustment is completed, where Req N may be used to replace any one of the background color of the preview window, req n+1 may be used to replace the background brightness of the preview window, and Req n+2 may be used to replace the focusing information of the preview window.

In some embodiments, the plurality of lenses includes at least:

In the embodiment of the present disclosure, the plurality of imaging lenses may be 3, 4 or more lenses, which is only an example here. Different lenses correspond to different angles of view and different zoom factors. The method can be specifically set according to the specific situation when the method is applied. The lens having the standard angle of view, the lens having the third angle of view, or the lens having the fourth angle of view in the above-described embodiments may be used as the second lens upon zooming. That is, the number of the second lenses may be plural, and the angle of view is smaller than that of the first lens.

Embodiments of the present disclosure provide a zoom apparatus. Fig. 4 is a schematic diagram showing a structure of a zoom apparatus according to an exemplary embodiment. As shown in fig. 4, the zoom apparatus includes:

a first processing unit 41, configured to call a first lens as a main imaging lens to acquire a preview image of an object to be photographed; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

a second processing unit 42, configured to receive a zoom instruction, where the zoom instruction at least includes an indicated zoom multiple that needs zooming of the lens;

a third processing unit 43, configured to determine, according to the received indicated zoom multiple, that a second lens corresponding to the indicated zoom multiple is a slave imaging lens when performing lens switching; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

a fourth processing unit 44, configured to perform zoom magnification adjustment of the electronic device based on the first lens and the second lens.

In the embodiment of the disclosure, the zooming method is applied to electronic equipment with a plurality of imaging lenses to perform multi-shot scene shooting. The plurality of lenses respectively have different angles of view, and the first lens has a maximum angle of view. The zoom factor corresponding to lenses having different angles of view is different. For example, a first lens corresponds to a first zoom magnification, a second lens corresponds to a second zoom magnification, and so on. The zoom multiple of the second lens corresponds to the indicated zoom multiple or the zoom multiple corresponding to the second lens comprises the indicated zoom multiple.

As shown in fig. 2, the first angle of view is larger than the standard angle of view, which is larger than the second angle of view, which is larger than the third angle of view; the zoom multiple corresponding to the first lens with the first field angle can be 0-0.5 x; the zoom multiple corresponding to the lens with the standard field angle can be 1.0 x-2.0 x; the zoom multiple corresponding to the lens with the second field angle can be 2.0 x-5.0 x; the lens having the third angle of view may correspond to a zoom factor of greater than 5.0x.

The zoom apparatus in the embodiment of the present disclosure is for: invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment; receiving a zooming instruction, wherein the zooming instruction at least comprises zooming multiples needing zooming of a lens; if the received zoom multiple is a preset zoom multiple, determining that a second lens corresponding to the preset zoom multiple is a slave imaging lens when the lens is switched; wherein the predetermined zoom factor is different from a zoom factor corresponding to the first lens; and adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens. Before zoom multiple adjustment is determined, the first lens with the largest field angle is used as the main shooting lens for acquiring preview images, and then the first lens is used as the main shooting lens to switch from the first lens with the largest field angle to the slave shooting lens to realize zoom multiple adjustment.

In some embodiments, the fourth processing unit is configured to

In the embodiment of the disclosure, the preview image acquired by the first lens is different from the state of the image acquired by the second lens in the preview window. When adjusting the corresponding preview image, the preview image acquired by the first lens needs to be adjusted to a predetermined state determined by the image acquired by the second lens. The predetermined state determined by the image acquired by the second lens is a state that the image acquired by the second lens needs to be presented in the preview window, and can be understood as an image state that the second lens can acquire when the image is directly acquired in the preview window. When the preview image acquired by the first lens is adjusted to a predetermined state determined by the image acquired by the second lens, it may be determined that the zoom magnification adjustment is completed.

In some embodiments, the fourth processing unit is configured to

In the embodiment of the disclosure, the zooming of the electronic device is digital zooming. In the zooming process, the preview state change of the preview image is realized in the preview window. When the preview image is changed, the change of the preview image acquired by the first lens relative to the image acquired by the second lens can be determined. In the image processing, the image center offset and/or the image rotation angle when the preview image is close to the image acquired by the second lens can be determined by taking the preview image and the image acquired by the second lens as inputs and inputting the inputs into a transformation matrix algorithm. The image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window. And the zooming process is completed by adjusting the image center offset and the image rotation angle of the preview image in the preview window.

After the adjustment is completed, the second lens is switched to the main shooting lens for acquiring the preview image, so that the lens switching is completed. In this process, the first lens is the lens with the largest angle of view, so the preview image may include the photographed object in the image acquired by the second lens, and when the image adjustment is performed, the image center offset and/or the image rotation angle of the preview image may be determined based on the same photographed object in the image acquired by the preview image and the second lens, so the zooming may be completed at one time. If the field angle of the main camera lens is not the maximum field angle, the preview image acquired by the main camera lens and the image acquired by the second camera lens may not contain the same shooting object, and the main camera lens is automatically transformed to continuously acquire the preview image in the zooming process to search the preview image with the same shooting object, and the continuous switching of the camera lens in the process can influence the preview fluency to cause preview blocking. However, in the application, the first lens with the largest field angle is used as the main shooting lens, so that the preview fluency can be improved, and the preview blocking phenomenon can be reduced.

In some embodiments, the fourth processing unit is configured to

Determining the relative position of the first lens and the second lens;

In the embodiment of the disclosure, when the first lens is adopted as the main imaging lens, when the obtained preview image and the image obtained by the second lens have no same shooting object, the image center offset and the image rotation angle for adjusting the presentation state of the preview image in the preview window can be determined according to the relative positions of the first lens and the second lens.

In some embodiments, the fourth processing unit is configured to

In the embodiment of the disclosure, in order to improve the display effect of the preview image in the zooming process, when the preview image is displayed in the preview window after adjustment is completed, the current background information of the preview window can be adjusted to be consistent with the background information of the preview window before zooming, including the background information being consistent with the focusing information. The background information comprises background brightness and background color; the focusing information includes: focusing area, focusing mode, focusing distance. The focusing mode may include at least: single auto-focus, auto-servo focus, continuous auto-focus, etc. As shown in fig. 3, req N in the drawing represents a factor that needs to be synchronized in the preview window when the master camera lens switches to the slave camera lens after the image adjustment is completed, where Req N may be used to replace any one of the background color of the preview window, req n+1 may be used to replace the background brightness of the preview window, and Req n+2 may be used to replace the focusing information of the preview window.

In some embodiments, the plurality of lenses includes at least:

the third processing unit is used for

In the embodiment of the present disclosure, the plurality of imaging lenses may be 3, 4 or more, which is only an example here. Different lenses correspond to different angles of view and different zoom factors. The method can be specifically set according to the specific situation when the method is applied.

The embodiment of the disclosure also provides an electronic device, including: a plurality of lenses that can be used as a master imaging lens or a slave imaging lens; wherein the first lens has a maximum field angle;

a processor and a memory, the memory having stored thereon a computer program capable of being run on the processor for performing the steps of the method according to the embodiments when the computer program is run.

The disclosed embodiments also provide a computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the method described in the embodiments.

Fig. 5 is a schematic view of an application scenario of an electronic device with a photographing function according to an exemplary embodiment. As shown in fig. 5, the electronic devices 101, 102 having a photographing function can be applied to a cellular network. And stopping wifi connection when receiving the indication of wireless transmission by adopting the cellular circuit, and recovering wifi connection when receiving the indication of wireless transmission by adopting the cellular circuit. The network environment includes electronic devices 101, 102, wifi access point 103, cellular base station 104, and network 105. )

Fig. 6 is a block diagram of an electronic device, according to an example embodiment. For example, the electronic device may be a mobile phone, a computer, a digital broadcast electronic device, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 6, the electronic device may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the electronic device, such as operations associated with touch, phone call, data communication, camera operation, and recording operation. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the electronic device. Examples of such data include instructions for any application or method operating on the electronic device, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 806 provides power to various components of the electronic device. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic devices.

The multimedia component 808 includes a screen between the electronic device and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the electronic device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the electronic device. For example, the sensor assembly 814 may detect an on/off state of the electronic device, a relative positioning of the components, such as a display and keypad of the electronic device, the sensor assembly 814 may also detect a change in position of the electronic device or a component of the electronic device, the presence or absence of user contact with the electronic device, an orientation or acceleration/deceleration of the electronic device, and a change in temperature of the electronic device. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the electronic device and other devices, either wired or wireless. The electronic device may access a wireless network based on a communication standard, such as WiFi,4G or 5G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A zoom method, comprising:

invoking a first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

receiving a zooming instruction, wherein the zooming instruction at least comprises an indication zooming multiple which needs zooming of a lens;

determining a second lens corresponding to the indicated zoom multiple as a slave image pickup lens when the lens is switched according to the received indicated zoom multiple; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

and adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens.
The zoom method according to claim 1, wherein the performing zoom magnification adjustment of the electronic device based on the first lens and the second lens includes:

Adjusting the preview image to a preset state in a preview window based on the first lens and the second lens; wherein the predetermined state is determined by an image acquired by the second lens.
The zoom method according to claim 2, wherein adjusting the preview image to a predetermined state in a preview window based on the first lens and the second lens comprises:

determining a first coordinate position of the object to be shot in the preview image and a second coordinate position of the object to be shot in the image acquired by the second lens;

determining an image center offset and an image rotation angle of the preview image in a preview window in the zooming process based on the first coordinate position and the second coordinate position; the image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window;

and adjusting the preview image to the preset state based on the image center offset and/or the image rotation angle.
The zoom method according to claim 2, wherein adjusting the preview image to a predetermined state in a preview window based on the first lens and the second lens comprises:

Determining the relative position of the first lens and the second lens;

determining a zooming parameter when the electronic equipment zooms from the first lens to the second lens according to the relative positions of the first lens and the second lens;

according to the zoom parameter, adjusting the presentation state of the preview image in a preview window to the preset state; wherein the zoom parameter at least comprises an image center offset and an image rotation angle;

the image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window.
The zoom method according to any one of claims 2 to 4, wherein the performing zoom magnification adjustment of the electronic device based on the first lens and the second lens, further comprises:

after adjusting the preview image to a preset state in the preview window, adjusting the current background information of the preview window to be consistent with the background information of the preview window before zooming; and

After adjusting the preview image to a preset state in the preview window, adjusting the current focusing information of the preview window to be consistent with the focusing information of the preview window before zooming; wherein the context information includes at least one of: background brightness, background color; the focusing information includes at least one of: focusing area, focusing mode, focusing distance.
The zoom method according to claim 1, wherein the plurality of lenses includes at least:

the first lens having a first angle of view corresponding to a first zoom factor;

a second lens having a second angle of view corresponding to a second zoom factor;

a second lens having a third angle of view corresponding to a third zoom factor; wherein the first angle of view is greater than the second angle of view, the second angle of view is greater than the third angle of view, the third zoom factor is greater than the second zoom factor, and the second zoom factor is greater than the first zoom factor;

if the received zoom multiple is a predetermined zoom multiple, determining that the second lens corresponding to the predetermined zoom multiple is a slave imaging lens when performing lens switching, including:

if the preset zoom multiple is a second zoom multiple, determining a second lens corresponding to the second zoom multiple as the slave imaging lens;

and if the preset zoom multiple is a third zoom multiple, determining that the second lens corresponding to the third zoom multiple is the slave imaging lens.
A zoom apparatus, comprising:

The first processing unit is used for calling the first lens as a main shooting lens to acquire a preview image of an object to be shot; the first lens is a lens with the largest field angle in a plurality of lenses of the electronic equipment;

the second processing unit is used for receiving a zooming instruction, and the zooming instruction at least comprises an indication zooming multiple which needs zooming of the lens;

a third processing unit, configured to determine, according to the received indicated zoom multiple, that a second lens corresponding to the indicated zoom multiple is a slave imaging lens when performing lens switching; wherein the zoom magnification corresponding to the second lens is different from the zoom magnification corresponding to the first lens;

and the fourth processing unit is used for adjusting the zoom multiple of the electronic equipment based on the first lens and the second lens.
The zoom apparatus according to claim 7, wherein the fourth processing unit is configured to

Adjusting the preview image to a preset state in a preview window based on the first lens and the second lens; wherein the predetermined state is determined by an image acquired by the second lens.
The zoom apparatus according to claim 8, wherein the fourth processing unit is configured to

Determining a first coordinate position of the object to be shot in the preview image and a second coordinate position of the object to be shot in the image acquired by the second lens;

determining an image center offset and an image rotation angle of the preview image in a preview window in the zooming process based on the first coordinate position and the second coordinate position; the image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window;

and adjusting the preview image to the preset state based on the image center offset and/or the image rotation angle.
The zoom apparatus according to claim 8, wherein the fourth processing unit is configured to

Determining the relative position of the first lens and the second lens;

determining a zooming parameter when the electronic equipment zooms from the first lens to the second lens according to the relative positions of the first lens and the second lens;

according to the zoom parameter, adjusting the presentation state of the preview image in a preview window to the preset state; wherein the zoom parameter at least comprises an image center offset and an image rotation angle;

The image center offset is used for adjusting the offset of the preview image moving in the preview window, and the image rotation angle is used for adjusting the angle of the preview image needing to rotate around the image center point in the preview window.
A zoom apparatus according to any one of claims 8 to 10, wherein the fourth processing unit is further configured to

After adjusting the preview image to a preset state in the preview window, adjusting the current background information of the preview window to be consistent with the background information of the preview window before zooming; and

After adjusting the preview image to a preset state in the preview window, adjusting the current focusing information of the preview window to be consistent with the focusing information of the preview window before zooming; wherein the context information includes at least one of: background brightness, background color; the focusing information includes at least one of: focusing area, focusing mode, focusing distance.
The zoom apparatus of claim 7, wherein the plurality of lenses comprises at least:

the first lens having a first angle of view corresponding to a first zoom factor;

a second lens having a second angle of view corresponding to a second zoom factor;

A second lens having a third angle of view corresponding to a third zoom factor; wherein the first angle of view is greater than the second angle of view, the second angle of view is greater than the third angle of view, the third zoom factor is greater than the second zoom factor, and the second zoom factor is greater than the first zoom factor;

the third processing unit is used for

If the preset zoom multiple is a second zoom multiple, determining a second lens corresponding to the second zoom multiple as the slave imaging lens;

and if the preset zoom multiple is a third zoom multiple, determining that the second lens corresponding to the third zoom multiple is the slave imaging lens.
An electronic device, comprising: a plurality of lenses that can be used as a master imaging lens or a slave imaging lens; wherein the first lens has a maximum field angle;

a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is adapted to perform the steps of the method of any of claims 1 to 6 when the computer program is run.
A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 6.