WO2021169686A1

WO2021169686A1 - Photo capture control method and apparatus and computer readable storage medium

Info

Publication number: WO2021169686A1
Application number: PCT/CN2021/073024
Authority: WO
Inventors: 李逸超
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-02-26
Filing date: 2021-01-21
Publication date: 2021-09-02
Also published as: CN111263072A

Abstract

Provided in the present application are a photo capture control method and apparatus, and a computer readable storage medium. The photo capture control method comprises: acquiring a photo capture preview image corresponding to a view finding area; performing feature comparison on the photo capture preview image according to a region of interest reference feature, so as to obtain a target region of interest in the photo capture preview image; configuring a target photo capture parameter on the basis of the target region of interest; and photo capturing the view finding area in response to a photo capture trigger instruction. By implementing the solution of the present application, a region of interest is automatically matched in a photo capture preview image according to a region of interest reference feature, which may be widely applied to various photo capture scenarios, thus effectively ensuring the accuracy of a determined region of interest, and improving the quality of a photo captured image.

Description

Shooting control method, device and computer readable storage medium

Technical field

This application relates to the field of electronic technology, and in particular to a shooting control method, device, and computer-readable storage medium.

Background technique

With the continuous development of terminal technology, users often use the terminal to take pictures in their work and life, and users have higher and higher requirements for the quality of images taken by the terminal.

In practical applications, a region of interest (ROI, Region of Interest) is used as a reference area for setting parameters such as focus, exposure, and beauty of the terminal camera, which has a direct impact on the quality of the image captured by the terminal. At present, when the terminal takes pictures, the user usually manually selects the area of interest on the shooting preview screen. However, for some shooting scenes (such as scenes such as oral shooting), it is difficult to view the area of interest because the user does not watch the preview screen. Because of the manual selection operation, the accuracy of the region of interest cannot be guaranteed, and the quality of the captured images is low.

technical problem

The embodiments of the present application provide a shooting control method, device, and computer-readable storage medium, which can at least solve the problem that the accuracy of the region of interest cannot be obtained by manually selecting the region of interest on the shooting preview screen in the related art Guarantee, as well as the problem of the low quality of the captured images.

Technical solutions

The first aspect of the embodiments of the present application provides a shooting control method, including:

Acquiring a shooting preview image corresponding to the viewfinder area;

Performing feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image;

Setting the target shooting parameters based on the target region of interest;

In response to a shooting trigger instruction, the viewfinder area is photographed.

A second aspect of the embodiments of the present application provides a shooting control device, including:

An acquisition module for acquiring a shooting preview image corresponding to the viewfinder area;

The comparison module is configured to perform feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image;

A setting module, configured to set target shooting parameters based on the target region of interest;

The photographing module is used for photographing the viewfinder area in response to a photographing trigger instruction.

The third aspect of the embodiments of the present application provides an electronic device, including: a memory, a processor, and a bus; the bus is used to realize connection and communication between the memory and the processor; the processor is used to execute a computer program stored in the memory; and processing When the computer program is executed by the computer program, the steps in the shooting control method provided in the first aspect of the foregoing embodiments of the present application are implemented.

The fourth aspect of the embodiments of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, each step in the shooting control method provided in the first aspect of the foregoing embodiments of the present application is implemented. .

Beneficial effect

It can be seen from the above that, according to the shooting control method, device and computer-readable storage medium provided by the solution of the present application, the shooting preview image corresponding to the viewing area is obtained; according to the reference feature of the region of interest, the feature comparison of the shooting preview image is obtained, Shoot the target region of interest in the preview image; set the target shooting parameters based on the target region of interest; and respond to the shooting trigger instruction to shoot the viewfinder area. Through the implementation of the solution of this application, the region of interest is automatically matched in the shooting preview image according to the reference feature of the region of interest, which can be widely applied to various shooting scenes, effectively ensuring the accuracy of the determined region of interest, and improving the shooting The quality of the image.

Description of the drawings

FIG. 1 is a schematic diagram of the basic flow of the shooting control method provided by the first embodiment of this application;

2 is a schematic flowchart of a method for determining a region of interest provided by the first embodiment of this application;

3 is a schematic flowchart of an image feature extraction method provided by the first embodiment of this application;

4 is a schematic flowchart of another method for determining a region of interest provided by the first embodiment of this application;

FIG. 5 is a detailed flowchart of the shooting control method provided by the second embodiment of this application;

6 is a schematic diagram of program modules of a photographing control device provided by the third embodiment of this application;

7 is a schematic diagram of program modules of another photographing control device provided by the third embodiment of this application;

FIG. 8 is a schematic structural diagram of an electronic device provided by a fourth embodiment of this application.

Embodiments of the present invention

In order to make the purposes, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the description The embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of this application.

In order to solve the defects that the accuracy of the region of interest cannot be guaranteed by manually selecting the region of interest on the shooting preview screen in the related art, and the quality of the captured image is low, the first embodiment of the present application provides A shooting control method. Fig. 1 is a basic flowchart of the shooting control method provided in this embodiment. The shooting control method includes the following steps:

Step 101: Acquire a shooting preview image corresponding to the viewfinder area.

Specifically, in actual applications, after the camera application on the terminal is triggered, the terminal enters the shooting preview state, and performs an imaging preview of the scene in the viewfinder area of the camera. It should be noted that the terminal in this embodiment is a terminal with a camera function, such as a mobile phone, a camera, and so on.

Step 102: Perform feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image.

Specifically, this embodiment performs feature comparison in the shot preview image based on preset reference features of the region of interest to automatically match the region of interest from the shot preview image, where the reference feature of the region of interest can use keywords or Image features to achieve.

In some implementations of this embodiment, before the feature comparison of the shooting preview image based on the reference feature of the region of interest, the method further includes: obtaining the shooting scene attributes based on the shooting preview image; When the conditions are automatically matched, the step of performing feature comparison on the captured preview image according to the reference feature of the region of interest is performed.

Specifically, in practical applications, not in all shooting scenarios, the solution of automatically matching the region of interest in this embodiment is optimally implemented or can meet the user's intention. Based on this, this embodiment is previewing the shooting Before the image automatically matches the region of interest, the current shooting scene is also judged, and the above actions are performed only when the current shooting scene meets certain conditions (for example, the oral wound shooting scene and other special shooting scenes), and vice versa. Perform other region-of-interest determination solutions, such as determining the region of interest based on a region-of-interest selection instruction input by the user. Therefore, according to the shooting scene, the automatic matching of the region of interest process of this embodiment is oriented and implemented, which is more adaptable to the scene and more reasonable.

Step 103: Set the target shooting parameters based on the target region of interest.

Specifically, the region of interest is the region in the image that can most arouse the user's interest and can best express the content of the image. Before triggering the shooting, the region of interest needs to be used as a reference region for setting related shooting parameters. The shooting parameters here may include focus parameters. , Exposure parameters, etc. In this embodiment, by accurately determining the region of interest, the problems of out-of-focus and inaccurate exposure can be effectively avoided, and the focus and exposure quality in a special shooting scene can be improved.

It should be noted that in practical applications, after setting the relevant parameters with the region of interest as the reference region, due to the different imaging characteristics in different scenes, shooting mode selection controls can also be provided, such as long exposure, HDR, and multiple There are multiple shooting modes for users to choose from, such as taking turns at focal lengths, to meet users' more diversified shooting needs.

Step 104: In response to the shooting trigger instruction, take a shot of the viewfinder area.

Specifically, in this embodiment, based on the automatically matched region of interest and completion of related shooting parameter settings based on this, when an externally input or automatically generated shooting trigger instruction is received, the camera is controlled to shoot the viewfinder area, and finally output the viewfinder Photos of the area.

Figure 2 is a schematic flow chart of a method for determining a region of interest provided by this embodiment. In some implementations of this embodiment, the feature comparison of the captured preview image is performed according to the reference feature of the region of interest to obtain the captured image. The target area of interest in the preview image specifically includes the following steps:

Step 201: Perform multi-scale block processing on the captured preview image to obtain multiple sub-image areas;

Step 202: Use the image feature of the target region in the preset reference image as the reference feature of the region of interest, and compare the regional image features of the multiple sub-image regions respectively.

Step 203: Determine the sub-image area whose correlation degree is higher than the correlation degree threshold as the target area of interest in the shooting preview image.

Specifically, in this embodiment, the captured preview image may be split, and then image feature extraction is performed on the sub-image regions obtained by splitting, and then the extracted image features are compared based on the preset image features. And the sub-image area corresponding to the image feature passed by the comparison is taken as the area of interest in the shooting preview image. It should be understood that, in practical applications, the region of interest obtained from the shooting preview image is not limited to one, and in practical applications there may also be multiple regions at the same time.

Fig. 3 is a schematic flow chart of an image feature extraction method provided in this embodiment. Further, in some implementations of this embodiment, before acquiring the shooting preview image corresponding to the viewfinder area, the following steps are specifically included:

Step 301: Receive an external region selection instruction input for a locally stored reference image;

Step 302: Select a target area on the reference image according to the area selection instruction;

Step 303: Perform feature extraction on the target area to obtain image features.

Specifically, in practical applications, the reference image and its image characteristics used for feature comparison of the captured preview image can be obtained from the background, or can be stored locally by the terminal user in advance according to the method provided in this embodiment. Specify a specific image as a reference image, and then manually select an image area in the reference image, and finally the terminal uses an image recognition algorithm to extract features of the area, determine the image features of the area, and provide a feature comparison reference for the captured preview image .

It should be noted that in some implementations of this embodiment, when the reference feature of the region of interest is a keyword, such as "teeth" and "moon", the feature comparison is performed on the captured preview image according to the reference feature of the region of interest. Yes, obtaining the target area of interest in the shooting preview image includes: performing multi-scale block processing on the shooting preview image to obtain multiple sub-image areas; performing image element recognition on each sub-image area to obtain image elements in each sub-image area Identification: The identification of each image element is compared with a preset keyword, and the sub-image area where the identification of the image element matches the keyword is determined as the target region of interest.

Further, before acquiring the shooting preview image corresponding to the viewfinder area, the method further includes: collecting externally input voice; extracting the keyword of the region of interest in the voice; and using the extracted keyword as the reference feature of the region of interest.

Figure 4 is a schematic flowchart of another image feature extraction method provided by this embodiment. In some implementations of this embodiment, the feature comparison of the captured preview image is performed according to the reference feature of the region of interest to obtain the captured preview image The target area of interest in specifically includes the following steps:

Step 401: Perform feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain multiple candidate regions of interest in the shooting preview image;

Step 402: Obtain area attributes of multiple candidate regions of interest respectively.

Step 403: Determine the target region of interest from among the multiple candidate regions of interest based on the comparison result of the region attributes.

Specifically, in actual applications, when comparing the features of the captured preview image, there may be multiple image regions that match the reference features of the region of interest, and then the region of interest can be further uniquely determined from these multiple image regions. . In this embodiment, according to the region attributes of a plurality of image regions that meet the reference characteristics of the region of interest, such as region location information, region area size, etc., these image regions are compared, and then the best image region in the comparison result is finally Determine the target area of interest to ensure the accuracy of the area of interest to the greatest extent possible.

In some implementations of this embodiment, when there are multiple target regions of interest, setting the target shooting parameters based on the target regions of interest includes: respectively acquiring shooting parameter setting intentions associated with each target region of interest; The target shooting parameters corresponding to the related shooting parameter setting intentions are set respectively based on the regions of interest of each target.

Specifically, in practical applications, there may be multiple regions of interest in the shooting preview image, and with different types of shooting parameters that need to be set, it may be necessary to set corresponding types of shooting parameters for different regions of interest. To meet more complex shooting needs. In this embodiment, the shooting parameter setting intention of each region of interest is correspondingly determined, and then the shooting parameters related to the shooting parameter setting intention are set based on the corresponding region of interest.

In some implementations of this embodiment, in response to the shooting trigger instruction, before shooting the viewfinder area, the method further includes: identifying target image elements in the target area of interest in the shooting preview image; calculating the shooting preview image and the interval The amount of change in the position of the target image element between shooting preview images of the preset number of frames; when the position change of the target image element is less than the preset position change threshold, the step of shooting the viewfinder area in response to the shooting trigger instruction is executed .

Specifically, in practical applications, after determining the region of interest in the shooting preview image, the shooting behavior of the camera is not triggered instantaneously, that is, the camera may still be in the shooting preview state for a period of time, and during the shooting preview process, It may be affected by objective factors such as the user's shaking of the terminal, etc. The specific image elements (such as teeth, moon, etc.) in the region of interest previously determined in the preview image may be offset, and when the offset is large At this time, the image element may not be in the originally determined area of interest, and the image element in the area of interest is not the image element expected by the user, and the image quality of the final photo taken when the camera is triggered is not good.

Based on this, in this embodiment, after determining the region of interest, the image elements of the region of interest are identified, and then the subsequent shooting preview images are compared with the image elements in the previous shooting preview images. Only when the position offset of is small, the viewfinder area is allowed to be photographed according to the shooting trigger instruction, so as to effectively ensure the quality of the photographed output.

Further, in some implementations of this embodiment, after calculating the amount of change in the position of the target image element between the captured preview image and the captured preview image with an interval of a preset number of frames, it further includes: the amount of change in the position of the target image element When it is greater than or equal to the position change threshold, the shooting adjustment parameter is calculated based on the position change; and the shooting adjustment prompt information is output according to the shooting adjustment parameter.

Specifically, in this embodiment, when the deviation of the specific image element in the region of interest determined in the preview image is large, in order to ensure the normal completion of this shooting, the deviation of the image element may be based on To calculate the shooting adjustment parameters, and output prompts to instruct the user to perform shooting adjustments, such as prompting the user to adjust the position of the terminal or adjust the user's own posture. It should be understood that the prompt information output manner of this embodiment can be implemented in a manner of voice prompt, vibration prompt, or display prompt.

Based on the technical solutions of the above embodiments of the present application, a photographed preview image corresponding to the viewfinder area is acquired; the photographed preview image is compared according to the reference features of the area of interest to obtain the target area of interest in the photographed preview image; based on the sense of object In the region of interest, the target shooting parameters are set; in response to the shooting trigger command, the viewfinder area is shot. Through the implementation of the solution of this application, the region of interest is automatically matched in the shooting preview image according to the reference feature of the region of interest, which can be widely applied to various shooting scenes, effectively ensuring the accuracy of the determined region of interest, and improving the shooting The quality of the image.

The method in FIG. 5 is a detailed shooting control method provided by the second embodiment of this application, and the shooting control method includes:

Step 501: Obtain a shot preview image corresponding to the viewfinder area, and perform multi-scale block processing on the shot preview image to obtain multiple sub-image areas.

In practical applications, when the camera application on the terminal is triggered, the terminal enters the shooting preview state, and performs an imaging preview of the scene in the viewing area of the camera. In this embodiment, the photographed preview image is split, and the image feature comparison is performed in units of sub-image areas.

Step 502: Use the image features of the target area in the preset reference image to compare the regional image features of the multiple sub-image areas respectively.

Step 503: Determine the sub-image area whose correlation degree is higher than the correlation degree threshold as the target area of interest in the shooting preview image.

In this embodiment, image feature extraction is performed on the sub-image regions obtained by splitting, and then the extracted image features are respectively compared based on the preset image features, and the sub-images corresponding to the passed image features are compared. The area is taken as the area of interest in the shooting preview image.

Step 504: Set the target shooting parameters based on the target region of interest.

In this embodiment, before triggering to take a picture, the area of interest needs to be used as a reference area for setting related shooting parameters, where the shooting parameters may include focus parameters, exposure parameters, and so on.

Step 505: Identify the target image elements in the target region of interest in the shooting preview image.

Step 506: Calculate the amount of change in the position of the target image element between the captured preview image and the captured preview image with an interval of a preset number of frames.

Specifically, during the shooting preview process, it may be affected by objective factors such as the user shaking the terminal. Although the position of the region of interest in the shooting preview image is fixed, the specific region of interest previously determined in the shooting preview image Image elements (such as teeth, moon, etc.) may be offset.

Step 507: When the position change amount of the target image element is less than the preset position change threshold value, in response to the shooting trigger instruction, photograph the viewfinder area.

Specifically, this embodiment compares the position of the image element in the subsequent shooting preview image with the image element in the previous shooting preview image, and only when the position offset of the image element is small, the viewfinder area is allowed to be photographed according to the shooting trigger instruction , So as to effectively ensure the quality of the photos taken and output.

It should be understood that the size of the sequence number of each step in this embodiment does not mean the order of execution of the steps. The execution order of each step should be determined by its function and internal logic, and should not constitute the implementation process of the embodiment of this application. The only limit.

The embodiment of the application discloses a shooting control method to obtain a shooting preview image corresponding to a viewing area; according to the reference feature of the region of interest, the feature comparison of the shooting preview image is performed to obtain the target region of interest in the shooting preview image; For the target area of interest, the target shooting parameters are set; in response to the shooting trigger instruction, the viewfinder area is shot. Through the implementation of the solution of this application, the region of interest is automatically matched in the shooting preview image according to the reference feature of the region of interest, which can be widely applied to various shooting scenes, effectively ensuring the accuracy of the determined region of interest, and improving the shooting In addition, in this embodiment, when the specific image element in the region of interest determined in the preview image has not been significantly moved, it is allowed to shoot the viewfinder area according to the shooting trigger instruction, thereby avoiding jitter In this case, the image quality caused by the trigger shooting is poor, which effectively guarantees the quality of the photos output.

FIG. 6 is a photographing control device provided by the third embodiment of this application. The photographing control device can be used to implement the photographing control method in the foregoing embodiment. As shown in Figure 6, the shooting control device mainly includes:

The acquiring module 601 is configured to acquire a shooting preview image corresponding to the viewfinder area;

The comparison module 602 is configured to compare the features of the shot preview image according to the reference features of the region of interest to obtain the target region of interest in the shot preview image;

The setting module 603 is used to set the target shooting parameters based on the target region of interest;

The photographing module 604 is configured to photograph the viewfinder area in response to a photographing trigger instruction.

In some implementations of this embodiment, the comparison module 602 is specifically configured to: perform multi-scale block processing on the captured preview image to obtain multiple sub-image regions; use the image feature of the target region in the preset reference image as the region of interest With reference to the feature, the regional image features of multiple sub-image areas are respectively compared; the sub-image area whose comparison correlation degree is higher than the correlation degree threshold is determined as the target area of interest in the shooting preview image.

FIG. 7 shows another shooting control device provided by this embodiment. Further, in some other implementations of this embodiment, the shooting control device further includes: an extraction module 605, which is used to obtain information corresponding to the viewfinder area. Before shooting the preview image, receive an external region selection instruction input for a locally stored reference image; select a target region on the reference image according to the region selection instruction; perform feature extraction on the target region to obtain image features.

In some other implementations of this embodiment, the comparison module 602 is specifically configured to: compare the features of the shot preview image according to the reference features of the region of interest to obtain multiple candidate regions of interest in the shot preview image; The area attributes of multiple candidate areas of interest; based on the comparison result of the area attributes, the target area of interest is determined from among the multiple candidate areas of interest.

In other implementations of this embodiment, when there are multiple target regions of interest, the setting module 603 is specifically configured to: obtain the shooting parameter setting intentions associated with each target region of interest respectively; , To set the target shooting parameter corresponding to the related shooting parameter setting intention.

Please continue to refer to FIG. 7. In some implementations of this embodiment, the shooting control device further includes: a calculation module 606, which is used to capture the target in the preview image before shooting the viewfinder in response to the shooting trigger instruction. Identify the target image element in the area; calculate the position change of the target image element between the shooting preview image and the shooting preview image with a preset number of frames. Correspondingly, when the position change of the target image element is less than the preset position change threshold, the photographing module 604 executes the function of photographing the viewfinder area in response to the photographing trigger instruction.

Please refer to FIG. 7 again. Further, in some implementations of this embodiment, the shooting control device further includes: a prompting module 607, configured to calculate the shooting preview image and the shooting preview image at an interval of a preset number of frames, the target image After the position change of the element, when the position change of the target image element is greater than or equal to the position change threshold, the shooting adjustment parameter is calculated based on the position change; and the shooting adjustment prompt information is output according to the shooting adjustment parameter.

It should be noted that the shooting control methods in the first and second embodiments can be implemented based on the shooting control device provided in this embodiment, and those of ordinary skill in the art can clearly understand that for the convenience and conciseness of the description, this embodiment For the specific working process of the photographing control device described in the example, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

According to the shooting control device provided in this embodiment, a shooting preview image corresponding to the viewfinder area is acquired; based on the reference feature of the region of interest, the shooting preview image is compared with features to obtain the target region of interest in the shooting preview image; For the region of interest, set the target shooting parameters; respond to the shooting trigger command to shoot the viewfinder area. Through the implementation of the solution of this application, the region of interest is automatically matched in the shooting preview image according to the reference feature of the region of interest, which can be widely applied to various shooting scenes, effectively ensuring the accuracy of the determined region of interest, and improving the shooting The quality of the image.

Please refer to FIG. 8. FIG. 8 is an electronic device provided by a fourth embodiment of this application. The electronic device can be used to implement the shooting control method in the foregoing embodiment. As shown in Figure 8, the electronic device mainly includes:

The memory 801, the processor 802, the bus 803, and a computer program stored on the memory 801 and capable of running on the processor 802, and the memory 801 and the processor 802 are connected through the bus 803. When the processor 802 executes the computer program, it implements the shooting control method in the foregoing embodiment. Among them, the number of processors can be one or more.

The memory 801 may be a high-speed random access memory (RAM, Random Access Memory) memory, or a non-volatile memory (non-volatile memory), such as a magnetic disk memory. The memory 801 is used to store executable program codes, and the processor 802 is coupled with the memory 801.

Further, the embodiments of the present application also provide a computer-readable storage medium. The computer-readable storage medium may be provided in the electronic device in each of the above-mentioned embodiments, and the computer-readable storage medium may be the one shown in FIG. 8 above. The memory in the embodiment is shown.

A computer program is stored on the computer-readable storage medium, and the program is executed by the processor to realize the shooting control method in the foregoing embodiment. Further, the computer storable medium may also be a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), RAM, a magnetic disk, or an optical disk and other various media that can store program codes.

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

The modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional modules in the various embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.

If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage. The medium includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in the various embodiments of the present application. The aforementioned readable storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

It should be noted that for the foregoing method embodiments, for simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described sequence of actions. Because according to this application, some steps can be performed in other order or at the same time. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the involved actions and modules are not necessarily all required by this application.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For a part that is not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

The above is a description of the shooting control method, device, and computer-readable storage medium provided by the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there will be changes in the specific implementation and the scope of application. In summary, the content of this manual should not be construed as a limitation on this application.

Claims

A shooting control method, characterized in that it comprises:

Acquiring a shooting preview image corresponding to the viewfinder area;

Performing feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image;

Setting the target shooting parameters based on the target region of interest;

In response to a shooting trigger instruction, the viewfinder area is photographed.
The shooting control method according to claim 1, wherein the feature comparison of the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image comprises:

Performing multi-scale block processing on the shooting preview image to obtain multiple sub-image areas;

Taking the image feature of the target region in the preset reference image as the reference feature of the region of interest, and comparing the regional image features of the multiple sub-image regions respectively;

The sub-image area with the comparison correlation degree higher than the correlation degree threshold is determined as the target area of interest in the shooting preview image.
The shooting control method according to claim 2, wherein before the obtaining the shooting preview image corresponding to the viewfinder area, the method further comprises:

Receiving an external region selection instruction input for the locally stored reference image;

Selecting the target area on the reference image according to the area selection instruction;

Perform feature extraction on the target area to obtain the image feature.
The shooting control method according to claim 1, wherein the feature comparison of the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image comprises:

Performing feature comparison on the shooting preview image according to the reference features of the region of interest to obtain multiple candidate regions of interest in the shooting preview image;

Respectively acquiring the area attributes of the multiple candidate regions of interest;

Based on the comparison result of the region attributes, a target region of interest is determined from among the plurality of candidate regions of interest.
The shooting control method according to claim 1, wherein when there are multiple target regions of interest, the setting of target shooting parameters based on the target regions of interest comprises:

Respectively acquiring shooting parameter setting intentions associated with each of the target regions of interest;

The target shooting parameters corresponding to the associated shooting parameter setting intentions are set respectively based on each of the target regions of interest.
The shooting control method according to any one of claims 1 to 5, characterized in that, before shooting the viewfinder area in response to a shooting trigger instruction, the method further comprises:

Identifying target image elements in the target region of interest in the shooting preview image;

Calculating the amount of change in the position of the target image element between the shooting preview image and the shooting preview image with an interval of a preset number of frames;

When the position change amount of the target image element is less than a preset position change amount threshold, the step of photographing the viewfinder area in response to a photographing trigger instruction is executed.
The shooting control method according to claim 6, wherein after calculating the position change amount of the target image element between the shooting preview image and the shooting preview image with a preset number of frames interval, the method further comprises:

When the position change amount of the target image element is greater than or equal to the position change amount threshold, calculating shooting adjustment parameters based on the position change amount;

Output shooting adjustment prompt information according to the shooting adjustment parameter.
A photographing control device, characterized in that it comprises:

An acquisition module for acquiring a shooting preview image corresponding to the viewfinder area;

The comparison module is configured to perform feature comparison on the shooting preview image according to the reference feature of the region of interest to obtain the target region of interest in the shooting preview image;

A setting module, configured to set target shooting parameters based on the target region of interest;

The photographing module is used for photographing the viewfinder area in response to a photographing trigger instruction.
An electronic device, characterized by comprising: a memory, a processor, and a bus;

The bus is used to implement connection and communication between the memory and the processor;

The processor is configured to execute a computer program stored on the memory;

When the processor executes the computer program, the steps in the method described in any one of claims 1 to 7 are implemented.
A computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps in the method of any one of claims 1 to 7 when the computer program is executed by a processor.