WO2024017175A1

WO2024017175A1 - Photographing preview method and apparatus, and electronic device and storage medium

Info

Publication number: WO2024017175A1
Application number: PCT/CN2023/107625
Authority: WO
Inventors: 邓智桂; 彭乾坤
Original assignee: 维沃移动通信有限公司
Priority date: 2022-07-22
Filing date: 2023-07-17
Publication date: 2024-01-25
Also published as: CN115103126A

Abstract

The present application belongs to the technical field of photographing. Disclosed are a photographing preview method and apparatus, and an electronic device and a storage medium. The method comprises: displaying a photographing preview picture of a first zoom ratio; and when an electronic device generates a first displacement, updating the photographing preview picture according to a first target amplitude, wherein the first target amplitude has an association relationship with the first displacement and a second zoom ratio, and the first zoom ratio is greater than the second zoom ratio.

Description

Shooting preview method, device, electronic equipment and storage medium

Cross-references to related applications

This application claims priority to the Chinese patent application filed with the China Patent Office on July 22, 2022, with application number 202210866643.9 and titled "Photography and Preview Method, Device, Electronic Equipment and Storage Medium", the entire content of which is incorporated by reference in in this application.

Technical field

This application belongs to the field of photography technology, and specifically relates to a photography preview method, device, electronic equipment and storage medium.

Background technique

With the development of science and technology, people have higher and higher requirements for the shooting functions of portable electronic devices such as smartphones, tablets, and smart watches. They not only require that the camera modules configured in the electronic devices can achieve background blur and clear night shots. and other functions, and it is also required that the camera module configured in the electronic device can realize the zoom function. At the same time, with the development of technologies such as lens design and highly integrated devices, the shooting quality of telephoto lenses with digital zoom functions has been greatly improved, and their weight has also been continuously reduced. This has made telephoto lenses widely used Configured in electronic equipment.

In related technologies, when a user holds an electronic device to shoot at a high zoom ratio, the shooting preview screen will become smaller due to the magnification of the shooting object. If the user's hand moves slightly, it will bring huge distortion to the shooting preview screen. The movement of the electronic device causes the object the user wants to photograph to move out of the shooting preview screen. At this time, the user needs to manually adjust the movement range of the electronic device to ensure that the object he wants to photograph falls back into the shooting preview screen. The user's operation cost is high.

Contents of the invention

The purpose of the embodiments of the present application is to provide a shooting preview method, device, electronic equipment and storage medium, which can solve the problem of high user operation costs in related technologies in high zoom magnification shooting scenarios.

In a first aspect, embodiments of the present application provide a shooting preview method, which is applied to electronic devices. The method includes:

Display the shooting preview screen of the first zoom ratio;

When the electronic device generates a first displacement, update the shooting preview screen according to the first target amplitude;

Wherein, the first target amplitude has a correlation relationship with the first displacement and a second zoom magnification, and the first zoom magnification is greater than the second zoom magnification.

In a second aspect, embodiments of the present application provide a shooting preview device, which is applied to electronic equipment. The device includes:

The first display module is used to display the shooting preview image of the first zoom ratio;

A first update module, configured to update the shooting preview screen according to the first target amplitude when the electronic device generates a first displacement;

In a third aspect, embodiments of the present application provide an electronic device. The electronic device includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. The programs or instructions are processed by the processor. When the processor is executed, the steps of the method described in the first aspect are implemented.

In a fourth aspect, embodiments of the present application provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented. .

In a fifth aspect, embodiments of the present application provide a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the first aspect. the method described.

In a sixth aspect, embodiments of the present application provide a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the method as described in the first aspect.

In the embodiment of the present application, the electronic device displays the shooting preview screen of the first zoom magnification. When the electronic device generates the first displacement, the shooting preview screen is updated according to the first target amplitude; wherein the first target amplitude and the first There is a correlation between the displacement and the second zoom magnification, and the first zoom magnification is greater than the second zoom magnification. Compared with related technologies, in the embodiment of the present application, when the user holds the electronic device During the process of shooting with high zoom magnification, if the electronic device moves, the shooting preview screen of the high zoom magnification can be automatically adjusted based on the movement displacement and a lower zoom magnification to obtain the same results as the lower zoom magnification. Mobile experience. That is, when the electronic device is displaced, the movement of the high zoom magnification preview screen is the same as the movement of the low zoom magnification shooting preview screen. Therefore, it can solve the problem of small movements in high zoom magnification shooting scenes causing huge movements to the shooting preview screen. problem without the need for manual adjustment by the user, reducing the user's operating cost.

Description of drawings

Figure 1 is an example diagram of the relationship between different zoom magnifications and the movement amplitude of the shooting preview screen when the electronic device moves according to an embodiment of the present application;

Figure 2 is a flow chart of a shooting preview method provided by an embodiment of the present application;

Figure 3 is an example diagram of the first zoom magnification and the second zoom magnification setting method provided by the embodiment of the present application;

Figure 4 is one of the example diagrams of the sensitivity setting method provided by the embodiment of the present application;

Figure 5 is the second example diagram of the sensitivity setting method provided by the embodiment of the present application;

Figure 6 is a structural block diagram of a shooting preview device provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

Figure 8 is a schematic diagram of the hardware structure of an electronic device that implements various embodiments of the present application.

Specific embodiments

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first,""second," etc. are distinguished Objects are usually of one type, The number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

Embodiments of the present application provide a shooting preview method, device, electronic equipment and storage medium.

To facilitate understanding, some concepts involved in the embodiments of this application are first introduced.

High-magnification zoom: The camera's zoom is divided into optical zoom and digital zoom. The difference is that optical zoom uses the movement of the lens to enlarge and shrink the object to be photographed, while digital zoom changes the size of the object in the picture by cropping the picture. . The zoom mentioned in the subsequent embodiments of this application all refers to digital zoom.

Non-center cropping: Currently, digital zoom uses the center of the original image captured by the camera as the origin to zoom in or out, that is, the central area in the image is used as the shooting preview screen; non-center cropping uses the non-center area in the image As a shooting preview screen.

Field Of View (FOV): The size of the shooting preview screen. The field of view is different at different zoom magnifications.

The movement of the shooting preview screen caused by camera movement: As shown in Figure 1, the two zoom fields of view are represented by thick black solid lines and thin black solid lines respectively. Among them, the field of view of the thick black solid line is the field of view of the black thin solid line. Twice, for example, the thick black solid line field size is 10 units and the thin black solid line size is 5 units, field size refers to the field size.

When the camera moves, the field of view change is expressed as the overall field of view moving upward by 1 unit, that is, the two zoom fields of view after the camera moves are represented by a thick black dotted line and a thin black dotted line. At this time, the black thin solid line can be calculated The movement amount of the line field of view is 1/5, and the movement amount of the black thick solid line field of view is 1/10. It can be seen that in the moving shooting preview screen, the screen movement of high zoom magnification is obviously faster than that of low zoom magnification. The amount of screen movement may also be referred to as the screen movement range.

The shooting preview method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

It should be noted that the shooting preview method provided by the embodiment of the present application is suitable for electronic devices. In practical applications, the electronic devices may include: smart phones, tablet computers or personal digital assistants. and other mobile terminals, which are not limited in the embodiments of this application.

Figure 2 is a flow chart of a shooting preview method provided by an embodiment of the present application. As shown in Figure 2, the method may include the following steps: step 201 and step 202.

In step 201, a shooting preview screen of the first zoom ratio is displayed.

In the embodiment of the present application, the first zoom ratio is the zoom ratio currently used by the camera of the electronic device. The first zoom ratio is usually a higher zoom ratio, for example, the first zoom ratio is 3x magnification, 5x magnification or 10x magnification, etc. .

In step 202, when the electronic device generates a first displacement, the shooting preview screen is updated according to the first target amplitude; wherein the first target amplitude is associated with the first displacement and the second zoom factor, and the first zoom factor Greater than the second zoom ratio.

In the embodiment of the present application, the second zoom ratio is usually a lower zoom ratio. For example, the second zoom ratio may be 1x magnification or 2x magnification. The second zoom magnification is used to adjust the movement range of the shooting preview screen of the first zoom magnification using the field of view of the second zoom magnification as the reference field of view when the electronic device moves, so that the movement of the shooting preview screen of the first zoom magnification The amplitude is as small as the movement of the shooting preview screen at the second zoom ratio, improving the telephoto shooting experience and making it easier for users to use. The second zoom magnification may also be called a reference magnification.

In the embodiment of the present application, the second zoom ratio can be set by the user.

In one example, as shown in Figure 3, the user turns on the camera of the electronic device 301 and can first set the first zoom ratio, for example, set 10x as the first zoom ratio, and the electronic device 301 displays a shooting preview screen of the first zoom ratio. 302. Control 303 for setting the first zoom ratio and control 304 for setting the second zoom ratio. Then click the control 304, and two controls will pop up, namely: control 3051 for selecting 2x magnification as the second zoom ratio. and a control 3052 for selecting 1x magnification as the second zoom magnification. Click the control 3051 or the control 3052 to set the second zoom magnification, for example, set 2x magnification as the second zoom magnification.

In another example, the user turns on the camera of the electronic device, and a shooting preview interface with a default magnification is displayed on the electronic device. The user can first set the second zoom ratio, for example, set the default magnification to the second zoom ratio, and then set the first zoom ratio. Magnification, for example, set 10x magnification as the first zoom magnification, Among them, the default magnification can be 1x magnification.

It can be seen that in the embodiment of the present application, when shooting at a high zoom magnification, in addition to setting the first zoom magnification, a second zoom magnification can also be set, and the field of view of the second zoom magnification is used as the reference field of view. In the electronic device When movement occurs, the first displacement generated by the movement is used to match the movement amplitude of the shooting preview screen at the second zoom magnification, and the movement amplitude of the shooting preview screen at the first zoom magnification is reversely compensated to obtain the same field of view as the reference field of view. Mobile experience.

In the embodiment of the present application, the data detected by the gyroscope can be read in real time starting from the moment when the electronic device displays the shooting preview interface, and based on the data detected by the gyroscope, it is determined whether the electronic device has moved, wherein, the data detected by the gyroscope The data may include: movement distance data and rotation angle data.

In the embodiment of the present application, when it is determined that the electronic device has moved based on the data detected by the gyroscope, the movement type of the electronic device can be further determined based on the movement distance and rotation angle detected by the gyroscope, wherein the movement type can be Including: only horizontal movement, only rotational movement, and horizontal movement and rotational movement. Accordingly, the first displacement may include: linear displacement, angular displacement, and linear displacement and angular displacement.

In the embodiment of the present application, the corresponding relationship between the first zoom magnification, the second zoom magnification, the first displacement and the first target amplitude can be pre-stored in the electronic device. For example, the corresponding relationship can be the function C=f(k,n, z), where C is the first target amplitude, k is the first zoom magnification, n is the second zoom magnification, and z is the first displacement. When the electronic device moves, the first zoom magnification, the second zoom magnification and the first displacement when the movement occurs are obtained, and the obtained data are substituted into the corresponding relationship to obtain the corresponding first target amplitude.

In the embodiment of the present application, the movement type of the electronic device is different, and the meaning represented by the first target amplitude is different. When the movement type of the electronic device is horizontal movement, that is, when the first displacement is a linear displacement, the first target amplitude is the distance value, which can be the number of pixels. When the movement type of the electronic device is rotational movement, that is, when the first displacement is an angular displacement, the first target amplitude is divided into two situations: if there is an optical image stabilizer in the electronic device, the first target amplitude is an angular value; If there is no optical image stabilizer in the electronic device, the first target amplitude is the distance value. When electronic devices are mobile When the type is moving horizontally and also rotationally, that is, when the first displacement includes linear displacement and angular displacement, the first target amplitude is also divided into two situations: If there is an optical image stabilizer in the electronic device, then the first target The amplitude includes a distance value and an angle value; if there is no optical image stabilizer in the electronic device, the first target amplitude is the distance value.

In the embodiments of the present application, different first target amplitude determination methods can be provided for different movement types of the electronic device, which can ensure the display effect of the shooting preview screen of the electronic device under various movement conditions.

In some embodiments, when the movement type of the electronic device is horizontal movement, the first movement is the horizontal movement distance detected by the gyroscope. At this time, according to the first zoom magnification, the second zoom magnification and the distance detected by the gyroscope. The horizontal movement distance of the xy axis determines the first target amplitude.

In the embodiment of the present application, the corresponding relationship between the first zoom magnification, the second zoom magnification, the horizontal movement distance detected by the gyroscope and the first target amplitude can be pre-stored in the electronic device. For example, the corresponding relationship can be the function C=f (k,n,L _gyro ), where C is the first target amplitude, k is the first zoom magnification, n is the second zoom magnification, and L _gyro is the horizontal movement distance detected by the gyroscope, that is, the first displacement. When the electronic device moves, the first zoom magnification, the second zoom magnification and the horizontal movement distance detected by the gyroscope are obtained when the movement occurs, and the obtained data are substituted into the corresponding relationship to obtain the corresponding first target amplitude.

In some embodiments, when the movement type of the electronic device is rotational movement, the first movement is the rotation angle detected by the gyroscope. At this time, according to the first zoom magnification, the second zoom magnification and the rotation detected by the gyroscope. angle to determine the first target amplitude.

In the embodiment of the present application, the corresponding relationship between the first zoom magnification, the second zoom magnification, the rotation angle detected by the gyroscope and the first target amplitude can be pre-stored in the electronic device. For example, the corresponding relationship can be the function C=f ( k,n,θ _gyro ), where C is the first target amplitude, k is the first zoom magnification, n is the second zoom magnification, and θ _gyro is the rotation angle detected by the gyroscope, that is, the first displacement. When the electronic device moves, the first zoom magnification, the second zoom magnification and the rotation angle detected by the gyroscope are obtained when the movement occurs, and the obtained data are substituted into the corresponding relationship to obtain the corresponding first target amplitude.

In some embodiments, when the movement type of the electronic device includes horizontal movement and rotational movement, the first movement includes the horizontal movement distance and the rotation angle detected by the gyroscope. At this time, according to the first zoom magnification, the second zoom magnification , horizontal movement distance and rotation angle to determine the first target amplitude.

In the embodiment of the present application, the corresponding relationship between the first zoom magnification, the second zoom magnification, the horizontal movement distance detected by the gyroscope and the first target amplitude can be stored in advance. For example, the corresponding relationship can be the function C=f(k,n ,L _gyro ), where C is the first target amplitude, k is the first zoom magnification, n is the second zoom magnification, and L _gyro is the horizontal movement distance detected by the gyroscope. And the corresponding relationship between the first zoom magnification, the second zoom magnification and the rotation angle detected by the gyroscope and the first target amplitude can be stored in advance. For example, the corresponding relationship can be the function C=f(k,n,θ _gyro ), where , C is the first target amplitude, k is the first zoom magnification, n is the second zoom magnification, and θ _gyro is the rotation angle detected by the gyroscope. When the electronic device moves, obtain the first zoom magnification, the second zoom magnification when the movement occurs, and the horizontal movement distance and rotation angle detected by the gyroscope, and substitute the obtained data into the above two corresponding relationship functions respectively. Two compensation amplitudes are obtained, and the two compensation amplitudes are superimposed to obtain the first target amplitude.

In the embodiment of the present application, the electronic device has different movement types, different first movement types, different meanings represented by the first target amplitude, and different first target amplitudes with different meanings, corresponding to different updating methods of the shooting preview screen.

In some embodiments, when the first target amplitude is a distance value, the shooting preview image of the first zoom magnification needs to reversely compensate the distance value for the center cropped image during the movement process, that is, for the horizontal movement of the electronic device, The center-cropped image of a high zoom magnification only needs to be moved in the opposite direction to obtain the image by cropping, that is, using non-center cropping on the shooting preview image of a high zoom magnification, the same mobile experience as that of a low zoom magnification can be obtained.

In some embodiments, when the first target amplitude is an angle value, you only need to reversely rotate the optical image stabilizer in the electronic device to the above angle value to adjust the movement amplitude of the shooting preview screen, and the same as the low zoom magnification can be obtained mobile experience.

In some embodiments, when the first target amplitude includes a distance value and an angle value, the shooting preview image with a high zoom magnification is reversely compensated for the distance value in the center cropping image during movement, and at the same time Turning the optical image stabilizer in the opposite direction to the above angle value will give you the same mobile experience as at low zoom magnifications.

It can be seen from the above embodiment that in this embodiment, the electronic device displays the shooting preview screen of the first zoom magnification. When the electronic device generates the first displacement, the shooting preview screen is updated according to the first target amplitude; wherein, the first target The amplitude is related to the first displacement and the second zoom factor, and the first zoom factor is greater than the second zoom factor. Compared with related technologies, in the embodiments of the present application, when the user is holding an electronic device for high zoom magnification shooting, if the electronic device moves, the high zoom magnification can be automatically adjusted based on the movement displacement and a lower zoom magnification. The shooting preview screen of the zoom magnification can obtain the same mobile experience as the lower zoom magnification. That is, when the electronic device moves, the movement feeling of the shooting preview screen of the high zoom magnification is the same as the movement feeling of the shooting preview screen of the low zoom magnification, so it can It solves the problem of small movements of the user's hand causing huge movements to the shooting preview screen in high zoom magnification shooting scenarios, without requiring the user to manually adjust, reducing the user's operating costs.

For ease of understanding, the calculation process of the first target amplitude under each movement type of the electronic device is described in detail below.

In another embodiment provided by this application, in the case where the electronic device includes an optical image stabilizer, the provided shooting method may also add the following step: step 203 before step 202 in the embodiment shown in FIG. 2 .

In step 203, calculate the first target amplitude according to the first displacement and the displacement compensation rate;

The displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification; the first displacement includes at least one of the following: linear displacement and angular displacement.

In an example, when the first displacement is linear displacement, if the first displacement is L _gyro , the first zoom magnification is k, the second zoom magnification is n, and the first target amplitude is C, then the displacement compensation rate is

In another example, when the first displacement is an angular displacement, if the first displacement is θ _gyro , the first zoom magnification is k, the second zoom magnification is n, and the first target amplitude is C, then the displacement compensation rate is

The derivation process of the above two formulas will be introduced in detail in subsequent embodiments.

Correspondingly, the above step 202 includes the following steps: step 2021 and step 2022, wherein,

In step 2021, the optical image stabilizer is controlled to generate a displacement of a first target amplitude along a first direction, where the first direction is opposite to the displacement direction of the first displacement.

In step 2022, a shooting preview screen of the first zoom ratio is displayed.

It can be seen that in the embodiment of the present application, when the electronic device includes an optical image stabilizer, when the electronic device moves, the high zoom magnification shooting preview screen can be automatically adjusted with the help of the optical image stabilizer, and There is no need for manual adjustment by the user and the efficiency is high.

In another embodiment provided by this application, when the movement type of the electronic device is horizontal movement, the first displacement generated by the electronic device is a linear displacement. The provided shooting method can also be used in the embodiment shown in Figure 2 Before step 202, add the following steps: step 204, where,

In step 204, the first target amplitude is calculated based on the first displacement and the displacement compensation rate; where the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the first zoom magnification to the second zoom magnification Difference.

In the embodiment of the present application, the corresponding relationship between the first displacement, the first zoom magnification, the second zoom magnification and the first target amplitude is:

Among them, L _gyro is the first displacement, k is the first zoom magnification, n is the second zoom magnification, C is the first target amplitude, is the displacement compensation rate.

The above corresponding relationships are derived through the following process:

The relative movement amount R1 of the shooting preview screen of the first zoom magnification is set to be equal to the relative movement amount R2 of the shooting preview screen of the second zoom magnification, and the above corresponding relationship is obtained, where R1 is the third of the shooting preview screen of the first zoom magnification. The ratio of a movement amount to the field of view size of the first zoom magnification. R2 is the ratio of the first movement amount to the field of view size of the second zoom magnification. The first displacement is the movement distance detected by the gyroscope.

In an example, for horizontal movement, the relative movement amount of the screen is defined as:

For rotational movement, define the relative movement amount of the screen as:

Among them, L _gyro is the movement distance detected by the gyroscope, L _field is the field of view size of the lens, θ _gyro is the rotation angle detected by the gyroscope, and θ _field is the field of view angle of the camera lens. The above parameters are all shown in Figure 1 There is a signal.

It can be understood that based on the above definition, the relative movement amount of the 10x magnification shooting preview screen is 5 times the relative movement amount of the 2x magnification shooting preview screen, which is recorded as 5R _2x , where R _2x is the 2x magnification shooting preview screen. relative movement amount. Furthermore, using nx magnification as the benchmark for mobile experience, nx can be 1x or 2x. Record the relative movement amount as R _nx , then the relative movement amount of the shooting preview screen at kx magnification is k/n times of nx magnification, which is (k/n )*R _nx . In order to facilitate understanding, nx magnification is used in some examples instead of the second zoom magnification, and kx magnification is used in place of the first zoom magnification for description.

When the electronic device moves horizontally, in order to achieve a mobile experience consistent with the second zoom ratio, the relative movement amount of the shooting preview screen of the second zoom ratio and the first zoom ratio should be equal, that is, the shooting preview of nx magnification and kx magnification The relative movement amount of the preview screen should be equal, which is obtained according to formula (1):

Among them, m is the first movement amount, which means that only by moving m units can the same movement experience as nx magnification be obtained, L _nx-field is the field of view size of nx magnification, and L _kx-field is the field of view size of kx magnification.

According to formula (3), m is calculated:

According to L _gyro and m, find the first target amplitude C:

Similarly, in the embodiment of the present application, when the movement type of the electronic device is rotational movement and the electronic device includes an optical image stabilizer, the first displacement, the first zoom magnification, and the second zoom magnification The corresponding relationship with the first target amplitude is:

Among them, θ _gyro is the first displacement, k is the first zoom magnification, n is the second zoom magnification, C is the first target amplitude, is the displacement compensation rate.

The relative movement amount R3 of the shooting preview screen of the first zoom magnification is set to be equal to the relative movement amount R4 of the shooting preview screen of the second zoom magnification, and the above corresponding relationship is obtained, where R3 is the third of the shooting preview screen of the first zoom magnification. The ratio of the second movement amount to the field of view angle of the first zoom magnification, R4 is the ratio of the first displacement to the field of view angle of the second zoom magnification, and the first displacement is the rotation angle detected by the gyroscope.

When the electronic device rotates and moves, in order to achieve a mobile experience consistent with the second zoom magnification, the relative movement amount of the shooting preview screen of the second zoom magnification and the first zoom magnification should be equal, that is, the shooting of nx magnification and kx magnification The relative movement amount of the preview screen should be equal, which is obtained according to formula (2):

Among them, θ _k is the second movement amount, which refers to the angle of rotation of θ _k to obtain the same movement experience as nx magnification, θ _nx-field is the field of view angle of nx magnification, θ _kx-field is the field of view angle of kx magnification .

According to formula (6), θ _k is calculated:

According to θ _gyro and θ _k , the first target amplitude C is calculated:

In another embodiment provided by this application, when the movement type of the electronic device is rotational movement, the first displacement generated by the electronic device is angular displacement. The provided shooting method can also be used in the embodiment shown in Figure 2 Before step 202, add the following steps: step 205 and step 206, where,

In step 205, the third target amplitude is calculated based on the first displacement and the displacement compensation rate, where, the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the ratio of the first zoom magnification to the second zoom magnification. The difference in magnification.

In step 206, trigonometric transformation is performed on the third target amplitude to obtain the first target amplitude.

In the embodiment of the present application, when the movement type of the electronic device is rotational movement, and the electronic device does not include an optical image stabilizer or does not rely on an optical image stabilizer, the first displacement, the first zoom magnification, and the second zoom magnification The corresponding relationship with the first target amplitude is:

Among them, θ _gyro is the first displacement, k is the first zoom magnification, n is the second zoom magnification, C is the first target amplitude, θ _nx-field is the field of view angle of nx magnification, θ _kx-field is the kx magnification Field of view angle, L _nx-field is the field of view size at nx magnification, and L _kx-field is the field of view size at kx magnification.

The relative movement amount R5 of the shooting preview screen of the first zoom magnification is set to be equal to the relative movement amount R6 of the shooting preview screen of the second zoom magnification, and the above corresponding relationship is obtained, where R5 is the third of the shooting preview screen of the first zoom magnification. R6 is the ratio of the actual movement amount of the shooting preview screen at the second zoom magnification to the field of view size of the second zoom magnification.

In an example, when the electronic device rotates and moves, according to formula (1), the mobile experience of the two zoom magnifications is consistent only:

Among them, A is the actual movement amount of the shooting preview screen at nx magnification, and B is the third movement amount of the shooting preview screen at kx magnification.

According to formula (9), B is obtained:

According to the geometric relationship in Figure 1, the actual movement amount M of the shooting preview screen at kx magnification is obtained:

According to M and B, find the first target amplitude C:

According to formula (11), obtain A:

According to formula (12) and formula (13), find C:

In another embodiment provided by this application, when the first target amplitude is a distance value, the above step 202 includes the following steps: step 2023 and step 2024.

In step 2023, when the electronic device generates a first displacement, the first image collected by the image sensor of the electronic device is cropped by the first target amplitude in the second direction to obtain a second image, where the second direction and The first displacement has the opposite direction of displacement.

In step 2024, a preview displays the second image.

It can be seen that in the embodiment of the present application, when the electronic device moves, non-center cropping can be used to automatically adjust the image in the high zoom magnification shooting preview screen without the need for manual adjustment by the user, which is more efficient.

In another embodiment provided by this application, when the movement type of the electronic device includes horizontal movement and rotational movement, the compensation amplitude corresponding to the horizontal movement and the compensation amplitude corresponding to the rotational movement can be calculated respectively, and the compensation amplitude corresponding to the horizontal movement can be calculated. The compensation amplitude superimposed with the compensation amplitude corresponding to the rotation movement constitutes a first target amplitude used for reverse compensation of the movement amplitude of the shooting preview image of the first zoom magnification.

In one example, when there is an optical image stabilizer in the electronic device, the first target amplitude C includes: the compensation amplitude obtained by formula (5) and the compensation amplitude obtained by formula (8).

In another example, when the electronic device does not have an optical image stabilizer, the first target amplitude C is: the sum of the compensation amplitude obtained by formula (5) and the compensation amplitude obtained by formula (14).

In the embodiment of the present application, the above formula (5), formula (8) and formula (14) can be stored in the electronic device in advance, so that when the movement of the electronic device is detected, the above formula is directly called to calculate the first target amplitude, Based on the first target amplitude, the data zoom shooting preview screen is compensated to improve the shooting effect and efficiency.

It can be seen that in the embodiments of the present application, different compensation amplitude determination methods can be provided for different types of movement of the electronic device, which can ensure the display effect of the digital zoom shooting preview screen under various movement conditions of the electronic device.

In another embodiment provided by this application, the user can set whether to turn on the automatic adjustment function of the high zoom magnification shooting preview screen. Accordingly, the above-mentioned step 201 includes the following steps: step 2011.

In step 2011, the shooting preview image of the first zoom ratio and the preview compensation control are displayed; wherein the preview compensation control is used to indicate the update range of the shooting preview image of the second zoom ratio when the electronic device is displaced.

In the embodiment of this application, if the user wants to turn on the automatic adjustment function of the shooting preview screen with high zoom magnification, he can click the preview compensation control.

The above step 202 includes the following steps: step 2025 and step 2026.

In step 2025, a first input to the preview compensation control is received; for example, the first input may be a click input.

In step 2026, in response to the first input, when the electronic device generates a first displacement, the shooting preview screen is updated according to the first target amplitude.

In the embodiment of the present application, when the user manually turns on the automatic adjustment function of the high zoom magnification shooting preview screen, if the electronic device moves, the image in the high zoom magnification shooting preview screen is automatically adjusted, and There is no need for manual adjustment by the user and the efficiency is high.

In another embodiment provided by this application, the sensitivity s can be defined to adjust the size of the compensation amplitude for shooting the preview image, recorded as s*C, where C is the first target amplitude in step 202, s=1 It is the default, that is, it is consistent with the mobile experience of the second zoom ratio, and s=0 means no compensation.

In some embodiments, as shown in Figure 4, after the user turns on the camera of the electronic device 401, in addition to displaying the shooting preview screen 402 of 10x magnification 403 and the control 404 for setting the second zoom magnification, a control for adjusting the second zoom magnification is also displayed. Sensitivity control 405, wherein the user can adjust the sensitivity by sliding the control 405.

In some embodiments, the provided shooting preview method can also be used in the embodiment shown in Figure 2 Based on this, add the following steps: Step 207.

In step 207, a zoom sensitivity curve of zoom magnification and preview screen update sensitivity is displayed, where the zoom sensitivity curve includes a first sensitivity corresponding to the first zoom magnification and a second sensitivity corresponding to the third zoom magnification.

In one example, as shown in Figure 5, after the user turns on the camera of the electronic device 501, the shooting preview screen 502 of the default magnification 503 and the control 504 for setting the second zoom magnification are displayed. The user can click the control 504 at 1x magnification. , at this time the default current magnification is the second zoom magnification. After setting the second zoom magnification, a zoom sensitivity curve 506 for adjusting the sensitivity at each magnification will be displayed. The default sensitivity at each magnification is 1, that is, the mobile experience of each high zoom magnification is lower than the baseline. The zoom ratio is the same.

After the above step 202, the following step is also included: step 208.

In step 208, when the electronic device generates the second displacement and receives the user's adjustment of the first zoom factor to the third zoom factor, the shooting preview screen is updated according to the second target amplitude; wherein the second target amplitude and the third zoom factor are updated. There is a correlation between the second displacement and the second sensitivity.

It can be seen that in the embodiment of the present application, the user can set the sensitivity of the movement of the shooting preview screen at a certain high zoom magnification, the movement amplitude of the picture at which magnification is used as the benchmark, and the sensitivity change curve of different magnifications, which can not only increase the user's good shooting experience, and can also bring new creative ideas to users, as well as provide tools for users to shoot different creative zoom videos, enriching zoom usage scenarios.

For the shooting preview method provided by the embodiment of the present application, the execution subject may be a shooting preview device. In the embodiment of the present application, the photographing preview device performing the photographing preview method is taken as an example to illustrate the photographing preview device provided by the embodiment of the present application.

Figure 6 is a structural block diagram of a shooting preview device provided by an embodiment of the present application, which is applied to electronic equipment. As shown in Figure 6, the shooting preview device 600 may include: a first display module 601 and a first update module 602, where ,

The first display module 601 is used to display the shooting preview screen of the first zoom magnification;

The first update module 602 is configured to update the shooting preview screen according to the first target amplitude when the electronic device generates a first displacement;

It can be seen from the above embodiment that in this embodiment, the electronic device displays the shooting preview screen of the first zoom magnification. When the electronic device generates the first displacement, the shooting preview screen is updated according to the first target amplitude; wherein, the first target The amplitude is related to the first displacement and the second zoom factor, and the first zoom factor is greater than the second zoom factor. Compared with related technologies, in the embodiments of the present application, when the user is holding an electronic device for high zoom magnification shooting, if the electronic device moves, the high zoom magnification can be automatically adjusted based on the movement displacement and a lower zoom magnification. The shooting preview screen of the zoom magnification is used to obtain the same mobile experience as that of the lower zoom magnification. That is, when the electronic device moves, the movement feeling of the high zoom magnification shooting preview screen is the same as the movement feeling of the low zoom magnification shooting preview screen. Therefore, it can solve the problem of small movements in high zoom magnification shooting scenes causing huge movements to the shooting preview screen, without the need for manual adjustment by the user, and reducing the user's operating costs.

Optionally, as an embodiment, the electronic device includes an optical image stabilizer, and the shooting preview device 600 may also include:

A first calculation module configured to calculate a first target amplitude according to the first displacement and a displacement compensation rate; wherein the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification; the first displacement includes at least one of the following: linear displacement and angular displacement.

Optionally, as an embodiment, the first update module 602 may include:

A control submodule configured to control the optical image stabilizer to generate a displacement of a first target amplitude along a first direction; wherein the first direction is opposite to the displacement direction of the first displacement;

The first display sub-module is used to display the shooting preview image of the first zoom magnification.

Optionally, as an embodiment, the first displacement is a linear displacement, and the shooting preview device 600 may also include:

The second calculation module is used to calculate the first target amplitude according to the first displacement and the displacement compensation rate; wherein the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification.

Optionally, as an embodiment, the first displacement is an angular displacement, and the shooting preview device 600 may also include:

A third calculation module configured to calculate a third target amplitude according to the first displacement and a displacement compensation rate; wherein the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification;

The conversion module is used to perform trigonometric conversion on the third target amplitude to obtain the first target amplitude.

Optionally, as an embodiment, the first update module 602 may include:

A cropping submodule, configured to crop the first target amplitude in a second direction from the first image collected by the image sensor of the electronic device to obtain a second image; wherein the second direction is the same as the first displacement. The displacement direction is opposite;

The second display sub-module is used to preview and display the second image.

Optionally, as an embodiment, the first display module 601 may include:

The third display sub-module is used to display the shooting preview screen of the first zoom ratio and the preview compensation control; wherein the preview compensation control is used to instruct the second zoom ratio to shoot when the electronic device is displaced. The update range of the preview screen;

The first update module 602 may include:

A receiving sub-module, configured to receive the first input to the preview compensation control;

An update submodule, configured to respond to the first input and update the shooting preview image according to a first target amplitude when the electronic device generates a first displacement.

Optionally, as an embodiment, the shooting preview device 600 may also include:

The second display module is used to display the zoom sensitivity curve of the zoom magnification and the preview screen update sensitivity, wherein the zoom sensitivity curve includes a first sensitivity corresponding to the first zoom magnification and a second sensitivity corresponding to the third zoom magnification;

A second update module configured to update the shooting preview according to the second target amplitude when the electronic device generates a second displacement and receives a user's adjustment of the first zoom factor to the third zoom factor. Picture; wherein the second target amplitude has a correlation relationship with the second displacement and the second sensitivity.

The shooting preview device in the embodiment of the present application may be an electronic device, or may be a component of the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, the electronic device can be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle-mounted electronic device, a mobile Internet device (MID), or an augmented reality (Augmented Reality, AR)/virtual reality (Virtual Reality, VR) ) equipment, robots, wearable devices, ultra-mobile personal computers (Ultra-Mobile Personal Computer, UMPC), netbooks or personal digital assistants (Personal Digital Assistant, PDA), etc., and can also be servers, network attached storage (Network Attached Storage, NAS), personal computer (Personal Computer, PC), television (Television, TV), teller machine or self-service machine, etc., the embodiments of this application are not specifically limited.

The shooting preview device in the embodiment of the present application may be a device with an operating system. The operating system can be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of this application.

The shooting preview device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 2. To avoid repetition, details will not be described here.

Optionally, as shown in Figure 7, this embodiment of the present application also provides an electronic device 700, including a processor 701 and a memory 702. The memory 702 stores programs or instructions that can be run on the processor 701. When the program or instruction is executed by the processor 701, each step of the above-mentioned shooting preview method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.

It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

The electronic device 800 includes but is not limited to: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, processor 810, etc. part.

Those skilled in the art can understand that the electronic device 800 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 810 through a power management system. The power management system is used to manage functions such as charging, discharging, and power consumption management. The structure of the electronic device shown in Figure 8 does not constitute a limitation on the electronic device. The electronic device may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be described again here. .

In one embodiment, the display unit 806 is used to display the shooting preview screen of the first zoom magnification; when the electronic device generates the first displacement, update the shooting preview screen according to the first target amplitude; wherein, The first target amplitude has a correlation relationship with the first displacement and a second zoom factor, and the first zoom factor is greater than the second zoom factor.

It can be seen that in the embodiment of the present application, the electronic device displays the shooting preview screen of the first zoom magnification. When the electronic device generates the first displacement, the shooting preview screen is updated according to the first target amplitude; wherein the first target amplitude and the first target amplitude are There is a correlation between one shift and the second zoom factor, and the first zoom factor is greater than the second zoom factor. Compared with related technologies, in the embodiments of the present application, when the user is holding an electronic device for high zoom magnification shooting, if the electronic device moves, the high zoom magnification can be automatically adjusted based on the movement displacement and a lower zoom magnification. The shooting preview screen of the zoom magnification is used to obtain the same mobile experience as that of the lower zoom magnification. That is, when the electronic device moves, the movement feeling of the high zoom magnification shooting preview screen is the same as the movement feeling of the low zoom magnification shooting preview screen. Therefore, it can solve the problem of small movements in high zoom magnification shooting scenes causing huge movements to the shooting preview screen, without the need for manual adjustment by the user, reducing the user's operating costs.

Optionally, as an embodiment, the electronic device includes an optical image stabilizer, and the processor 810 is configured to calculate a first target amplitude according to the first displacement and a displacement compensation rate; wherein the displacement compensation rate is The ratio of the zoom magnification difference to the first zoom magnification, the zoom magnification difference being the difference between the first zoom magnification and the second zoom magnification; the first displacement includes at least one of the following: linear displacement, angular displacement Displacement.

Optionally, as an embodiment, the processor 810 is further configured to control the optical image stabilizer to generate a displacement of a first target amplitude along a first direction, wherein the displacement in the first direction and the first displacement opposite direction;

The display unit 806 is also used to display the shooting preview image of the first zoom ratio.

Optionally, as an embodiment, the first displacement is a linear displacement, and the processor 810 is also used to Calculate the first target amplitude according to the first displacement and the displacement compensation rate; wherein the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the first zoom magnification The difference from the second zoom magnification.

Optionally, as an embodiment, the first displacement is an angular displacement, and the processor 810 is further configured to calculate a third target amplitude according to the first displacement and a displacement compensation rate; perform Triangular conversion is performed to obtain the first target amplitude; wherein the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the ratio of the first zoom magnification to the second zoom magnification. Difference.

Optionally, as an embodiment, the processor 810 is further configured to crop the first target amplitude in the second direction from the first image collected by the image sensor of the electronic device to obtain a second image, wherein: The second direction is opposite to the displacement direction of the first displacement;

The display unit 806 is also used to preview and display the second image.

Optionally, as an embodiment, the display unit 806 is also used to display a shooting preview screen of the first zoom ratio and a preview compensation control; wherein the preview compensation control is used to indicate that the second zoom ratio is in the electronic state. When the device is displaced, the update range of the shooting preview screen;

User input unit 807, configured to receive a first input to the preview compensation control;

The display unit 806 is also configured to respond to the first input and update the shooting preview screen according to the first target amplitude when the electronic device generates a first displacement.

Optionally, as an embodiment, the display unit 806 is also used to display a zoom sensitivity curve between the zoom magnification and the preview screen update sensitivity, wherein the zoom sensitivity curve includes a first sensitivity corresponding to the first zoom magnification and a third zoom the second sensitivity corresponding to the magnification; when the electronic device generates a second displacement and receives the user's adjustment of the first zoom magnification to the third zoom magnification, update the shooting preview according to the second target amplitude Picture; wherein the second target amplitude has a correlation relationship with the second displacement and the second sensitivity.

It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042. The graphics processor 8041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Such as camera) obtained static Image data of pictures or videos is processed. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072 . Touch panel 8071, also known as touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

Memory 809 can be used to store software programs as well as various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 809 may include volatile memory or non-volatile memory, or memory 809 may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct Rambus RAM (DRRAM). Memory 809 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 810.

An embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program The program or instruction, when executed by the processor, implements each process of the above-mentioned shooting preview method embodiment, and can achieve the same technical effect. To avoid duplication, it will not be described again here.

Wherein, the processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above shooting preview method embodiment. Each process can achieve the same technical effect. To avoid repetition, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-a-chip or system-on-a-chip.

Embodiments of the present application provide a computer program product. The program product is stored in a storage medium. The program product is executed by at least one processor to implement each process of the above shooting preview method embodiment, and can achieve the same technical effect. , to avoid repetition, will not be repeated here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, they can also be implemented by over hardware, but in many cases the former is the better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , optical disk), including several instructions to cause a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A shooting preview method, which is applied to electronic equipment, and the method includes:

Display the shooting preview screen of the first zoom ratio;

When the electronic device generates a first displacement, update the shooting preview screen according to the first target amplitude;

Wherein, the first target amplitude has a correlation relationship with the first displacement and a second zoom magnification, and the first zoom magnification is greater than the second zoom magnification.
The method of claim 1, wherein the electronic device includes an optical image stabilizer, and before updating the shooting preview screen according to the first target amplitude, the method further includes:

Calculate the first target amplitude according to the first displacement and the displacement compensation rate;

Wherein, the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification;

The first displacement includes at least one of the following: linear displacement and angular displacement.
The method of claim 2, wherein updating the shooting preview screen according to the first target amplitude includes:

Controlling the optical image stabilizer to generate a displacement of a first target amplitude along a first direction;

Display the shooting preview screen of the first zoom ratio;

Wherein, the first direction is opposite to the displacement direction of the first displacement.
The method according to claim 1, wherein the first displacement is a linear displacement, and before updating the shooting preview screen according to the first target amplitude, the method further includes:

Calculate the first target amplitude according to the first displacement and the displacement compensation rate;

Wherein, the displacement compensation rate is a ratio of a zoom magnification difference to the first zoom magnification, and the zoom magnification difference is a difference between the first zoom magnification and the second zoom magnification.
The method according to claim 1, wherein the first displacement is an angular displacement, and before updating the shooting preview screen according to the first target amplitude, the method further includes:

Calculate the third target amplitude according to the first displacement and the displacement compensation rate;

Perform trigonometric conversion on the third target amplitude to obtain the first target amplitude;

Wherein, the displacement compensation rate is a ratio of a zoom magnification difference to the first zoom magnification, and the zoom magnification difference is a difference between the first zoom magnification and the second zoom magnification.
The method according to claim 4 or 5, wherein according to the first target amplitude, more The new shot preview screen includes:

Crop the first target width in the second direction from the first image collected by the image sensor of the electronic device to obtain a second image;

Preview and display the second image;

Wherein, the second direction is opposite to the displacement direction of the first displacement.
The method according to claim 1, wherein the displaying the shooting preview screen of the first zoom ratio includes:

Display the shooting preview screen and preview compensation control of the first zoom ratio;

When the electronic device generates a first displacement, updating the shooting preview screen according to the first target amplitude includes:

receiving a first input to the preview compensation control;

In response to the first input, when the electronic device generates a first displacement, update the shooting preview screen according to the first target amplitude;

Wherein, the preview compensation control is used to instruct the second zoom magnification to update the amplitude of the preview image when the electronic device is displaced.
The method of claim 1, further comprising:

Display a zoom sensitivity curve of zoom magnification and preview screen update sensitivity, wherein the zoom sensitivity curve includes a first sensitivity corresponding to the first zoom magnification and a second sensitivity corresponding to the third zoom magnification;

After updating the shooting preview screen according to the first target amplitude, the method further includes:

When the electronic device generates a second displacement and receives a user's adjustment of the first zoom factor to the third zoom factor, update the shooting preview screen according to the second target amplitude;

Wherein, the second target amplitude has a correlation relationship with the second displacement and the second sensitivity.
A shooting preview device, which is applied to electronic equipment, and the device includes:

The first display module is used to display the shooting preview image of the first zoom ratio;

A first update module, configured to update the shooting preview screen according to the first target amplitude when the electronic device generates a first displacement;

Wherein, the first target amplitude has a correlation relationship with the first displacement and a second zoom magnification, and the first zoom magnification is greater than the second zoom magnification.
The apparatus of claim 9, wherein the electronic device includes an optical image stabilizer, the apparatus further comprising:

A first calculation module configured to calculate the first target amplitude according to the first displacement and the displacement compensation rate;

Wherein, the displacement compensation rate is the ratio of the zoom magnification difference to the first zoom magnification, and the zoom magnification difference is the difference between the first zoom magnification and the second zoom magnification;

The first displacement includes at least one of the following: linear displacement and angular displacement.
The device of claim 10, wherein the first update module includes:

A control submodule configured to control the optical image stabilizer to generate a displacement of a first target amplitude along the first direction;

The first display sub-module is used to display the shooting preview screen of the first zoom magnification;

Wherein, the first direction is opposite to the displacement direction of the first displacement.
An electronic device, which includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, any of claims 1 to 8 is implemented. The steps of the shooting preview method described in one item.
A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the shooting preview method according to any one of claims 1 to 8 is implemented. step.
A chip, wherein the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as described in any one of claims 1 to 8 Steps of shooting preview method.
A computer program product, wherein the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the shooting preview according to any one of claims 1 to 7 Method steps.
An electronic device, wherein the electronic device is configured to implement the steps of the shooting preview method according to any one of claims 1 to 7.