WO2022206629A1 - Photographing method, terminal device and computer-readable storage medium - Google Patents

Abstract

The present application provides a photographing method, a terminal device and a computer-readable storage medium, and relates to the field of photography. In the method, when a terminal device starts a camera for photographing, a photographing distance between the terminal device and a photographed main body can be measured. When the terminal device receives a photographing operation of a user, and the photographing distance is less than the nearest focusing distance of the camera, the terminal device takes a first picture and enters a first photographing state. After the terminal device enters the first photographing state, the user can be guided to take the terminal device away from the photographed main body, and the zoom ratio of the camera is adjusted according to the photographing distance, such that the user is assisted in taking a second picture, in which a photographing FOV is nearly equal to that of the first picture but the image is clearer, during the process of taking the terminal device away from the photographed main body. During a photographing process, the photographing field of view of a terminal device does not jump, such that a user does not need to repeatedly adjust composition.

Description

Shooting method, terminal device and computer-readable storage medium

This application claims the priority of the Chinese patent application with the application number 202110342589.3 and the application title "Photography Method, Terminal Equipment and Computer-readable Storage Medium" filed with the State Intellectual Property Office on March 30, 2021, the entire contents of which are by reference Incorporated in this application.

technical field

The embodiments of the present application relate to the field of photography, and in particular, to a photography method, a terminal device, and a computer-readable storage medium.

Background technique

When a user uses a terminal device to shoot a certain subject (the subject to be photographed can also be called a subject, and the subject can be a person or an object), if the shooting distance between the terminal device and the subject is smaller than the distance between the terminal device and the subject The closest focusing distance of the camera. Since the lens of the camera cannot focus, the picture captured by the terminal device will appear blurry. The closest focusing distance of the camera of the terminal device refers to the closest shooting distance at which the lens of the camera can be in focus (or called focusing).

At present, in response to the above problems, an implementation method is: when a user uses a terminal device to photograph the subject at close range, the terminal device can guide the user to actively adjust the zoom ratio of the camera of the terminal device, and the relationship between the terminal device and the subject to be photographed. The shooting distance between the two, so that the terminal device can complete the shooting within the distance range that the camera can focus on. In another implementation manner, the terminal device may be provided with multiple cameras, such as a main camera and an ultra-wide-angle camera, and the closest focusing distance of the ultra-wide-angle camera is smaller than the closest focusing distance of the main camera. When the shooting distance between the terminal device and the subject to be photographed is less than the closest focusing distance of the main camera of the terminal device, the terminal device can automatically switch from the main camera to the ultra-wide-angle camera with a shorter closest focusing distance for shooting to achieve close-up shooting to a clearer picture.

However, the above-mentioned implementations all cause the shooting angle of view (field of view, FOV) of the terminal device to jump, and the user needs to adjust the composition repeatedly.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present application provides a photographing method, a terminal device and a computer-readable storage medium. The technical solution provided by the present application can avoid jumping of the shooting FOV of the terminal device, and does not require the user to repeatedly adjust the composition.

In a first aspect, an embodiment of the present application provides a photographing method, the method comprising:

When the terminal device starts the camera to shoot, the terminal device detects the shooting distance between the terminal device and the subject to be photographed; when the terminal device receives the user's shooting operation and the shooting distance is less than the closest focusing distance of the camera, the terminal device responds to the shooting operation. The first photo, and enter the first shooting state.

After the terminal device enters the first shooting state, the first prompt information is displayed, and the first prompt information is used to prompt the user to keep the terminal device away from the subject being photographed; and, according to the shooting distance, the zoom ratio of the camera is adjusted as follows:

When the shooting distance is less than or equal to the first distance threshold, the terminal device maintains the zoom ratio of the camera at the first ratio; when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the terminal device adjusts the zoom ratio of the camera to follow increases gradually as the shooting distance increases; when the shooting distance is greater than or equal to the second distance threshold, the terminal device maintains the zoom magnification of the camera at the second magnification. The first distance threshold is smaller than the closest focusing distance of the camera, and the second distance threshold is greater than the closest focusing distance of the camera; the first magnification is the default zoom magnification of the camera when the terminal device starts the camera to shoot; the second magnification is greater than the first magnification.

After the terminal device enters the first shooting state, in the process of adjusting the zoom ratio of the camera, when receiving a second shooting operation from the user, the terminal device shoots a second photo in response to the second shooting operation.

Exemplarily, the first photographing state may be referred to as a far-away photographing state, and the first prompt information may be "please move further away to improve image quality".

In this method, after the terminal device enters the first shooting state, when the user gradually moves the terminal device away from the subject being photographed, the terminal device adjusts the zoom ratio of the camera according to the above-mentioned logic according to the shooting distance, so that the shooting FOV of the terminal device can be improved. No significant change occurs when the shooting distance is within the range from the first distance threshold to the second distance threshold. Therefore, after the terminal device enters the first shooting state, when the user gradually moves the terminal device away from the subject being photographed, when the preview screen becomes clear (indicating that the shooting distance at this time is greater than or equal to the closest focusing distance of the camera) , the shooting operation can be performed again to trigger the terminal device to shoot a second photo. The shooting FOV of the second photo can be nearly equal to the above-mentioned first photo, but the second photo is clearer than the first photo.

In addition, in this shooting method, the user does not need to actively adjust the zoom ratio of the camera, the number of interactions between the user and the terminal device is small, and the shooting FOV of the terminal device does not jump, and the user does not need to recompose the image.

In some embodiments, the second magnification may be less than or equal to the maximum zoom magnification of the camera.

For example, when the maximum zoom magnification of the camera is 2.5X, the second magnification may be 2X, 2.5X, etc., and the size of the second magnification is not limited.

Optionally, the above-mentioned secondary photographing operation is a photographing operation performed by the user when the user sees that the preview image displayed by the terminal device is clear.

When the user sees that the preview screen displayed by the terminal device is clear, it indicates that the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. It can be understood that for the user, it is impossible to perceive whether the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. Therefore, the user can intuitively observe whether the preview image is clear, and perform the operation when the preview image is clear. Secondary shooting operation.

Optionally, the method further includes: after the terminal device enters the first shooting state, when the shooting distance is greater than the closest focusing distance of the camera, the terminal device no longer displays the first prompt information.

After the terminal device enters the first shooting state, when the user moves the terminal device away from the subject to be shot, the shooting distance will gradually increase. When the shooting distance is greater than the closest focusing distance of the camera, the terminal device no longer displays the first prompt information, which can remind the user that the second shooting operation can be performed at this time, and there is no need to stay away from the terminal device.

Optionally, after the terminal device enters the first shooting state, the step of adjusting the zoom ratio of the camera according to the shooting distance includes: the terminal device adjusts the camera according to the shooting distance and the first correspondence between the shooting distance and the zoom ratio. zoom ratio.

The first correspondence may be preconfigured in the terminal device.

In some embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases linearly with the increase of the shooting distance.

In other embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases nonlinearly with the increase of the shooting distance.

In some embodiments, the method further includes: the terminal device replaces the first photo with the second photo.

For example, if the terminal device captures a second photo in response to the user's secondary capture operation, the terminal device can replace the first photo (the first photo is blurry) captured at close range with the second photo, as the final captured photo photo. Therefore, the user can use the terminal device to take a picture that is clearer and whose FOV is almost equivalent to taking a close-up picture.

In other embodiments, the terminal device may not replace the first photo with the second photo. For example, the terminal device can save both the first photo and the second photo, and the user can actively choose whether to delete the first photo, which is not limited here.

In some embodiments, after the terminal device enters the first shooting state, it can automatically exit the first shooting state.

For example, in one embodiment, the method further includes: after the terminal device enters the first shooting state, when the first prompt message is displayed for a first time period and the second shooting operation is still not received, the terminal device exits the first shooting state. shooting status.

Exemplarily, the first duration may be 5 seconds (S), 6S, or the like. After the terminal device enters the first shooting state, the first prompt information may be displayed on the shooting interface for a preset first duration. When the terminal device has not received the user's second shooting operation again after the first time period is reached, the terminal device may automatically exit the first shooting state.

For another example, in another embodiment, after the terminal device enters the first shooting state, when it continuously detects M times (M is an integer greater than 0, for example, M may be 10), when the shooting distance is greater than the above-mentioned second distance threshold, The terminal device can also automatically exit the first shooting state.

In other embodiments, after the terminal device enters the first shooting state, the user may also actively operate to trigger the terminal device to exit the first shooting state.

For example, in another embodiment, the method further includes: after the terminal device enters the first shooting state, exiting the first shooting state in response to the user's operation of actively exiting the first shooting state or an operation of manual zooming.

It can be understood that after the terminal device exits the first shooting state, the zoom magnification of the camera can be switched from the zoom magnification adjusted in the first shooting state to the default first magnification (eg, 1X). At this time, the terminal device is in a normal shooting state, and the degree of clarity or blur of the preview image displayed by the terminal device is related to the shooting distance between the terminal device and the subject to be photographed.

Optionally, when the terminal device detects that the number of times that the user manually exits the first shooting state reaches a preset number of times (such as 3 times), the terminal device may not trigger to enter the first shooting state in the future, so as to ensure a better user experience. .

Optionally, before entering the first shooting state, when the terminal device detects that the user performs manual zooming, it may not enter the first shooting state.

Optionally, when the terminal device adjusts the zoom ratio of the camera according to the shooting distance after entering the first shooting state, if the terminal device adjusts the zoom ratio of the camera to the second ratio, the terminal device can also adjust the zoom ratio of the camera. The second magnification is temporarily locked to prevent the terminal device from repeatedly adjusting the zoom magnification of the camera back and forth when the shooting distance between the terminal device and the subject to be photographed changes repeatedly due to the user's hand shaking.

Optionally, the method further includes: when the terminal device continuously detects that the shooting distance is smaller than the third distance threshold for N times before receiving the user's shooting operation, the terminal device enters the second shooting state. N is an integer greater than 0; the third distance threshold is greater than the closest focusing distance of the camera. After the terminal device enters the second shooting state, according to the shooting distance, adjust the zoom ratio of the camera as follows:

When the shooting distance is greater than or equal to the third distance threshold, the terminal device maintains the zoom magnification of the camera at the first magnification; when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the terminal device adjusts the zoom magnification of the camera It gradually increases as the shooting distance decreases; when the shooting distance is less than or equal to the closest focusing distance of the camera, the terminal device maintains the zoom magnification of the camera at the second magnification.

After the terminal device enters the second shooting state, in the process of adjusting the zoom ratio of the camera, when receiving a shooting operation from the user, the terminal device takes a photo in response to the shooting operation.

Exemplarily, the second photographing state may be referred to as a zoom-in photographing state.

In this shooting method, when the terminal device continuously detects that the shooting distance is smaller than the third distance threshold for N times before receiving the user's shooting operation, it indicates that the user has a tendency to use the terminal device to shoot the subject at close range. If the user has a tendency to use the terminal device to take a close-up photograph of the subject being photographed, the terminal device enters the second photographing state. After the terminal device enters the second shooting state, within the range where the shooting distance is greater than or equal to the closest focusing distance of the camera, adjust the zoom ratio of the camera to increase as the shooting distance decreases, so that the shooting FOV of the terminal device is within the current shooting range. When the distance is longer, it can be almost equivalent to the shooting FOV when the zoom magnification of the camera is the default first magnification and the shooting distance is smaller.

That is, after the terminal device enters the second shooting state, when the shooting distance is greater than or equal to the closest focusing distance of the camera, the magnification effect of the captured photo may be different from that when the terminal device does not enter the second shooting state (camera). The zoom magnification is the default first magnification), and the magnification effect of the photos taken when the shooting distance is smaller is almost the same (or the same). In this way, the photos taken by the user using the terminal device can not only achieve the desired zoom-in effect of close-up shooting, but also ensure the clarity of the photos. For example, assuming that the terminal device does not enter the second shooting state, the photo taken by the user using the terminal device when the shooting distance is less than the closest focusing distance of the camera is the first photo; The photo taken when the camera is greater than or equal to the closest focusing distance of the camera is the second photo. Then, the second photo can not only have a magnification effect nearly equal to that of the first photo, but also be clearer than the first photo.

Optionally, after the terminal device enters the second shooting state, the step of adjusting the zoom ratio of the camera according to the shooting distance includes: the terminal device adjusts the camera according to the shooting distance and the second correspondence between the shooting distance and the zoom ratio. zoom ratio.

The second correspondence may be preconfigured in the terminal device.

In some embodiments, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases linearly as the shooting distance decreases.

In some other implementations, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases nonlinearly as the shooting distance decreases.

In the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the closer the correspondence between the shooting distance and the zoom magnification is to a linear relationship, the more the terminal device is in the process of approaching or moving away from the subject being photographed. , the lower the probability of shooting FOV jumps.

In some embodiments, after the terminal device enters the second shooting state, it can automatically exit the second shooting state.

For example, in one embodiment, the method further includes: after the terminal device enters the second shooting state, when it is continuously detected that the shooting distance is greater than the third distance threshold for M times, the terminal device exits the second shooting state; M is greater than 0 the integer.

In other embodiments, after the terminal device enters the second shooting state, the user may actively operate to trigger the terminal device to exit the second shooting state.

For example, in another implementation manner, the method further includes: after the terminal device enters the second shooting state, exiting the second shooting state in response to the user's operation of actively exiting the second shooting state or an operation of manual zooming.

It can be understood that after the terminal device exits the second shooting state, the zoom ratio of the camera of the mobile phone can be switched from the zoom ratio adjusted in the second shooting state to the default first ratio (eg, 1X). At this time, the terminal device is in a normal shooting state, and the degree of clarity or blur of the preview image displayed by the terminal device is related to the shooting distance between the terminal device and the subject to be photographed.

Optionally, when the terminal device detects that the number of times that the user manually exits the second shooting state reaches a preset number of times (such as 3 times), the terminal device may not trigger to enter the second shooting state in the future, so as to ensure a better user experience. .

Optionally, before entering the second shooting state, when the terminal device detects that the user has performed manual zooming, it may not enter the second shooting state.

In a second aspect, an embodiment of the present application provides a photographing apparatus, which can be used to implement the photographing method described in the first aspect. The functions of the apparatus may be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the above functions, for example, a display module, a camera module.

Wherein, the display module may include a display of the terminal device, and the camera module may include a processor of the terminal device, and a program code (such as a camera application) that the processor can invoke and execute. The display module and the camera module can implement the functions corresponding to the shooting method described in the first aspect.

The camera module is used to detect the shooting distance between the terminal device and the subject to be photographed when the camera is activated for shooting; when receiving a shooting operation from the user and the shooting distance is less than the closest focusing distance of the camera, the first shooting operation is performed in response to the shooting operation. photo, and enter the first shooting state.

The display module is used to display first prompt information after the camera module enters the first shooting state, and the first prompt information is used to prompt the user to keep the terminal device away from the subject to be photographed.

The camera module is also used to adjust the zoom ratio of the camera as follows according to the shooting distance after entering the first shooting state:

When the shooting distance is less than or equal to the first distance threshold, the zoom magnification of the camera is maintained at the first magnification; when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification of the camera is adjusted as the shooting distance increases. increases gradually; when the shooting distance is greater than or equal to the second distance threshold, the zoom magnification of the camera is maintained at the second magnification. The first distance threshold is smaller than the closest focusing distance of the camera, and the second distance threshold is greater than the closest focusing distance of the camera; the first magnification is the default zoom magnification of the camera when the terminal device starts the camera to shoot; the second magnification is greater than the first magnification.

After the camera module enters the first shooting state, in the process of adjusting the zoom ratio of the camera, the camera module is further configured to take a second photo in response to the second shooting operation when receiving the user's second shooting operation.

Exemplarily, the first photographing state may be referred to as a far-away photographing state, and the first prompt information may be "please move further away to improve image quality".

In some embodiments, the second magnification may be less than or equal to the maximum zoom magnification of the camera.

For example, when the maximum zoom magnification of the camera is 2.5X, the second magnification may be 2X, 2.5X, etc., and the size of the second magnification is not limited.

Optionally, the above-mentioned secondary photographing operation is a photographing operation performed by the user when the user sees that the preview image displayed by the terminal device is clear.

When the user sees that the preview screen displayed by the terminal device is clear, it indicates that the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. It can be understood that for the user, it is impossible to perceive whether the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. Therefore, the user can intuitively observe whether the preview image is clear, and perform the operation when the preview image is clear. Secondary shooting operation.

Optionally, after the camera module enters the first shooting state, when the shooting distance is greater than the closest focusing distance of the camera, the display module no longer displays the first prompt information.

Optionally, the camera module is specifically configured to, after entering the first shooting state, adjust the zoom ratio of the camera according to the shooting distance and the first correspondence between the shooting distance and the zoom ratio.

The first correspondence may be preconfigured in the terminal device.

In some embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases linearly with the increase of the shooting distance.

In other embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases nonlinearly with the increase of the shooting distance.

In some embodiments, the camera module is also used to replace the first photo with the second photo.

In one embodiment, the camera module is further configured to, after entering the first shooting state, when the display module displays the first prompt information for a first time period and the camera module has not received the second shooting operation, automatically exit the first shooting state. shooting status.

In another embodiment, the camera module is further configured to, after entering the first shooting state, when it is continuously detected M times (M is an integer greater than 0, for example, M can be 10) the shooting distance is greater than the above-mentioned second distance threshold to automatically exit the first shooting state.

In another embodiment, the camera module is further configured to, after entering the first shooting state, exit the first shooting state in response to the user's operation of actively exiting the first shooting state or an operation of manually zooming.

Optionally, the camera module is further configured to stop triggering to enter the first shooting state when it is detected that the number of times the user manually exits the first shooting state reaches a preset number of times (eg, 3 times), so as to ensure a better user experience.

Optionally, the camera module is further configured to stop entering the first shooting state when it is detected that the user has performed manual zooming before entering the first shooting state.

Optionally, the camera module is further configured to temporarily lock the zoom ratio of the camera if the zoom ratio of the camera is adjusted to the second ratio when the zoom ratio of the camera is adjusted according to the shooting distance after entering the first shooting state. At the second magnification, the zoom magnification of the camera is repeatedly adjusted back and forth when the shooting distance between the terminal device and the subject to be photographed changes repeatedly due to the user's hand shaking.

Optionally, the camera module is further configured to, before receiving the user's shooting operation, enter the second shooting state when it is continuously detected that the shooting distance is smaller than the third distance threshold for N times. N is an integer greater than 0; the third distance threshold is greater than the closest focusing distance of the camera. And, after entering the second shooting state, according to the shooting distance, adjust the zoom ratio of the camera as follows:

When the shooting distance is greater than or equal to the third distance threshold, the zoom magnification of the camera is maintained at the first magnification; when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification of the camera is adjusted with the shooting distance When the shooting distance is less than or equal to the closest focusing distance of the camera, the zoom ratio of the camera is maintained at the second ratio.

After the camera module enters the second shooting state, in the process of adjusting the zoom magnification of the camera, it is also used for taking pictures in response to the shooting operation when receiving the shooting operation of the user.

Exemplarily, the second photographing state may be referred to as a zoom-in photographing state.

Optionally, the camera module is specifically configured to, after entering the second shooting state, adjust the zoom ratio of the camera according to the shooting distance and the second correspondence between the shooting distance and the zoom ratio.

The second correspondence may be preconfigured in the terminal device.

In some embodiments, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases linearly as the shooting distance decreases.

In some other implementations, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases nonlinearly as the shooting distance decreases.

In the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the closer the correspondence between the shooting distance and the zoom magnification is to a linear relationship, the more the terminal device is in the process of approaching or moving away from the subject being photographed. , the lower the probability of shooting FOV jumps.

In one embodiment, the camera module is further configured to, after entering the second shooting state, exit the second shooting state when it is continuously detected that the shooting distance is greater than the third distance threshold for M times; M is an integer greater than 0.

In another embodiment, the camera module is further configured to, after entering the second shooting state, exit the second shooting state in response to the user's operation of actively exiting the second shooting state or an operation of manually zooming.

Optionally, the camera module is further configured to stop triggering to enter the second shooting state when it is detected that the number of times the user manually exits the second shooting state reaches a preset number of times (eg, 3 times), so as to ensure a better user experience.

Optionally, the camera module is further configured to, before entering the second shooting state, no longer enter the second shooting state when it is detected that the user has performed manual zooming.

It can be understood that all the functions corresponding to the shooting method described in the first aspect can be realized through the shooting device, which will not be repeated here.

In a third aspect, an embodiment of the present application provides a terminal device, including: a processor, a memory, and a computer program; wherein the computer program is stored in the memory, and when the computer program is executed by the processor, the terminal device executes the first The photographing method described in any one of the aspects and the implementation manner of the first aspect.

Exemplarily, the terminal device may be a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR)/virtual reality (VR) device, a notebook computer, an ultra-mobile personal computer (ultra-mobile) personal computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA) and other mobile terminals. Alternatively, the terminal device may also be a professional shooting device such as a digital camera, a single-lens reflex camera/mirror-single camera, an action camera, a PTZ camera, and a drone.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium includes a computer program, and when the computer program is run on a terminal device, the terminal device is made to execute any one of the first aspect and the first aspect. A shooting method described in an implementation manner.

In a fifth aspect, the embodiments of the present application further provide a computer program product, including computer-readable codes, when the computer-readable codes are run in a terminal device, the terminal device can execute any one of the first aspect and the first aspect. A shooting method described in an implementation manner.

Any implementation manner of the second aspect and the second aspect, any implementation manner of the third aspect and the third aspect, any implementation manner of the fourth aspect and the fourth aspect, and the fifth aspect and the fifth aspect For the technical effects corresponding to any implementation manner, reference may be made to the first aspect and the technical effects corresponding to any implementation manner of the first aspect, which will not be repeated here.

It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages may be realized in any single embodiment. On the contrary, it can be understood that the description of features or beneficial effects means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, descriptions of technical features, technical solutions or beneficial effects in this specification do not necessarily refer to the same embodiments. Furthermore, the technical features, technical solutions and beneficial effects described in this embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that an embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and benefits may also be identified in specific embodiments that do not embody all embodiments.

Description of drawings

1 is a schematic diagram of a shooting scene;

Figure 2 is a schematic diagram of the mobile phone shooting interface when the shooting distance between the mobile phone and the text "HUAWEI" is greater than or equal to the closest focusing distance of the mobile phone camera;

Figure 3 is a schematic diagram of a mobile phone shooting interface when the shooting distance between the mobile phone and the text "HUAWEI" is less than the closest focusing distance of the mobile phone camera;

4 is a schematic diagram of a mobile phone shooting interface;

Fig. 5 is another schematic diagram of the mobile phone shooting interface;

Fig. 6 is another schematic diagram of the mobile phone shooting interface;

FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

8 is a schematic flowchart of a photographing method provided by an embodiment of the present application;

9 is a schematic diagram of a mobile phone shooting interface provided by an embodiment of the present application;

10 is another schematic diagram of a mobile phone shooting interface provided by an embodiment of the present application;

11 is a schematic diagram of a correspondence between a shooting distance and a zoom magnification provided by an embodiment of the application;

12 is a schematic diagram of another correspondence between the shooting distance and the zoom magnification provided by an embodiment of the present application;

FIG. 13 is another schematic flowchart of the photographing method provided by the embodiment of the present application;

14 is another schematic diagram of a mobile phone shooting interface provided by an embodiment of the application;

15 is a schematic diagram of a screen shot when the mobile phone provided by the embodiment of the application is not in a zoomed-in shooting state and the shooting distance is 9 cm;

16 is a schematic diagram of a screen shot when the mobile phone provided by the embodiment of the application enters a zoomed-in shooting state and the shooting distance is 15 cm;

17 is a schematic diagram of a second correspondence provided by an embodiment of the present application;

FIG. 18 is a schematic structural diagram of a photographing apparatus provided by an embodiment of the present application.

Detailed ways

The terms used in the following embodiments are for the purpose of describing particular embodiments only, and are not intended to be limitations of the present application. As used in the specification of this application and the appended claims, the singular expressions "a," "an," "the," "above," "the," and "the" are intended to also Expressions such as "one or more" are included unless the context clearly dictates otherwise. It should also be understood that, in the following embodiments of the present application, "at least one" and "one or more" refer to one or more than two (including two). The term "and/or", used to describe the association relationship of related objects, indicates that there can be three kinds of relationships; for example, A and/or B, can indicate: A alone exists, A and B exist at the same time, and B exists alone, A and B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship.

References in this specification to "one embodiment" or "some embodiments" and the like mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically emphasized otherwise. The terms "including", "including", "having" and their variants mean "including but not limited to" unless specifically emphasized otherwise. The term "connected" includes both direct and indirect connections unless otherwise specified.

Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature.

In the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in the embodiments of the present application as "exemplarily" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "such as" is intended to present the related concepts in a specific manner.

The embodiments of the present application may be applicable to a scene where a terminal device with a shooting function performs shooting, such as: taking a picture or shooting a video.

Optionally, the terminal device may be a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR)/virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (ultra-mobile) personal computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA) and other mobile terminals. Alternatively, the terminal device may also be a professional shooting device such as a digital camera, a single-lens reflex camera/mirror-single camera, an action camera, a PTZ camera, and a drone. This embodiment of the present application does not limit the specific type of the terminal device.

It should be noted that, in the description of this application, "at least one" refers to one or more, and "a plurality" refers to two or more (including two). The words "first", "second" and the like are only used for distinguishing descriptions, and are not used for special limitation on a certain feature. "And/or" is used to describe the association relationship of associated objects, indicating that there are three kinds of relationships. For example, A and/or B can mean that A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are an "or" relationship.

When the user uses the terminal device to shoot the subject (the subject can also be called the subject, and the subject can be a person or an object), if the shooting distance between the terminal device and the subject is smaller than the camera of the terminal device At the shortest focusing distance, the lens of the camera cannot be focused, and the subject image captured by the terminal device will appear blurry. The closest focusing distance of the camera of the terminal device refers to the closest shooting distance at which the lens of the camera can be in focus (or called focusing).

Taking the terminal device as a mobile phone as an example, when the user uses the mobile phone to take a close-up shot of the subject to be photographed, if the shooting distance between the mobile phone and the subject to be photographed is less than the closest focusing distance of the camera of the mobile phone (such as 8cm), then the mobile phone can obtain The image of the subject being photographed will appear blurry.

For example, FIG. 1 is a schematic diagram of a shooting scene. In the shooting scene shown in Fig. 1, the subject to be photographed may be the text "HUAWEI" on the paper. When the user uses the mobile phone to shoot the shooting scene shown in FIG. 1 , the mobile phone can display a preview screen corresponding to the shooting scene shown in FIG. 1 on the shooting interface.

FIG. 2 is a schematic diagram of a mobile phone shooting interface when the shooting distance between the mobile phone and the text "HUAWEI" is greater than or equal to the closest focusing distance of the mobile phone camera. As shown in Figure 2, when the user uses the mobile phone to shoot the shooting scene shown in Figure 1, if the shooting distance between the mobile phone and the text "HUAWEI" in the shooting scene is greater than or equal to the closest focusing distance of the mobile phone camera, the mobile phone The text "HUAWEI" in the preview screen 101 displayed in the shooting interface is relatively clear.

FIG. 3 is a schematic diagram of a mobile phone shooting interface when the shooting distance between the mobile phone and the text "HUAWEI" is smaller than the closest focusing distance of the mobile phone camera. As shown in Figure 3, when the user uses a mobile phone to shoot the shooting scene shown in Figure 1, if the shooting distance between the mobile phone and the text "HUAWEI" in the shooting scene is less than the closest focusing distance of the mobile phone camera, the mobile phone is shooting The text "HUAWEI" in the preview screen 101 displayed in the interface is blurred.

At present, in response to the above problems, an implementation method is: when a user uses a mobile phone to shoot a subject at close range, the mobile phone can guide the user to actively adjust the zoom ratio of the mobile phone camera and the shooting distance between the mobile phone and the subject. , so that the phone completes the shot within the distance where the camera can focus.

For example, FIG. 4 is a schematic diagram of a camera interface of a mobile phone. As shown in Figure 4, when the user uses the mobile phone to shoot the shooting scene shown in Figure 1, if the shooting distance between the mobile phone and the text "HUAWEI" is less than the closest focusing distance of the camera of the mobile phone, the mobile phone can be displayed in the shooting interface. A 2X shortcut button 102 and a prompt box 103 are displayed in the lower left corner of the preview screen 101 . The prompt box 103 includes the text "click here and back slightly for better focus". The text in the prompt box 103 can be used to guide the user to click the 2X shortcut button 102 and adjust the shooting distance between the mobile phone and the text "HUAWEI". When the user clicks the 2X shortcut button 102, the mobile phone can switch the zoom ratio of the camera from the default 1X to 2X in response to the operation of the user clicking the 2X shortcut button 102. For example, the mobile phone can control the lens position of the camera through the focus motor to adjust the zoom ratio of the camera.

FIG. 5 is another schematic diagram of the camera interface of the mobile phone. As shown in FIG. 5 , when the mobile phone responds to the user's operation of clicking the 2X shortcut button 102 and switches the zoom ratio of the camera from the default 1X to 2X, the preview screen 101 displayed in the mobile phone shooting interface can be enlarged by 2 times, and the preview screen 101 will become more blurry. At this time, the mobile phone may display a text prompt on the shooting interface: "Please stay away" 104 . "Please stay away" 104 can guide the user to move the phone away from the text "HUAWEI". When the user moves the phone away from the text "HUAWEI", the shooting distance between the phone and the text "HUAWEI" will gradually increase.

FIG. 6 is another schematic diagram of a mobile phone shooting interface. As shown in Figure 6, when the shooting distance between the mobile phone and the text "HUAWEI" increases to be greater than or equal to the closest focusing distance of the mobile phone camera, the lens of the camera can focus normally. The text "HUAWEI" is relatively clear. At the same time, because the zoom ratio of the camera is 2X at this time, the shooting distance between the picture of the text "HUAWEI" captured by the mobile phone and the text "HUAWEI" is smaller than the closest focusing distance of the camera, and the zoom ratio of the camera is 1X. The picture of the text "HUAWEI" captured by the mobile phone has the same magnification effect. For example, the preview screen 101 shown in FIG. 6 has the same magnification effect as the preview screen 101 shown in FIG. 3 , but the preview screen 101 shown in FIG. 6 is clearer.

Therefore, in this way, the mobile phone can capture a picture of the subject being photographed that is relatively clear and whose magnification effect can be equivalent to the effect of close-up photography within the distance range that the camera can focus on.

However, in this method, when the zoom ratio of the mobile phone camera is switched from the default 1X to 2X, the field of view (FOV) of the mobile phone will jump, and the user needs to re-adjust the mobile phone for secondary composition. For example, referring to FIGS. 4 and 5 above, the preview screen 101 is suddenly enlarged from that shown in FIG. 4 to that shown in FIG. 5 , and the user needs to readjust the position of the text “HUAWEI” in the preview screen 101 .

In another implementation manner, the mobile phone may also be provided with multiple cameras, such as a main camera and an ultra-wide-angle camera, and the closest focusing distance of the ultra-wide-angle camera is smaller than the closest focusing distance of the main camera. When the shooting distance between the mobile phone and the subject to be photographed is less than the closest focusing distance of the main camera, the mobile phone can automatically switch from the main camera to the ultra-wide-angle camera with a shorter closest focusing distance for shooting, so as to achieve a clearer picture from close-up shooting .

For example, the closest focusing distance of the main camera of the mobile phone can be 10cm, and the closest focusing distance of the ultra-wide-angle camera can be 4cm. When the shooting distance between the mobile phone and the subject being photographed is less than 10cm, the mobile phone can automatically switch from the main camera to the ultra-wide-angle camera for shooting.

However, this method also causes the FOV of the mobile phone to jump, and the user needs to re-adjust the mobile phone for secondary composition. In addition, this method also needs to rely on an ultra-wide-angle camera with a shorter closest focusing distance, which must be achieved by requiring the mobile phone to include an ultra-wide-angle camera with a shorter closest focusing distance.

Against this background, an embodiment of the present application provides a shooting method, which can be applied to a terminal device with a shooting function. In this method, when the user wants to use the terminal device to take a first photo at a close distance within the range where the shooting distance is less than the closest focusing distance of the camera: the terminal device can first take a first photo at a close distance, and then assist the user Within the range where the shooting distance is greater than or equal to the closest focusing distance of the camera, take a second photo with a FOV that is almost the same as the first photo, but with a clearer picture. That is, the magnification effect of the second photo can be nearly equal to the close-up shooting effect of the first photo, but the second photo is clearer than the first photo.

Specifically, in the photographing method, when the terminal device is photographing, the photographing distance between the terminal device and the subject to be photographed can be detected. If the terminal device receives the user's shooting operation when the shooting distance is less than the closest focusing distance of the camera, the terminal device can take a first photo and enter a far-away shooting state. After the terminal device enters the remote shooting state, the user can be guided to gradually move the terminal device away from the subject being photographed.

During the process of the user gradually moving the terminal device away from the subject being photographed, the photographing distance will gradually increase. When the shooting distance is less than or equal to the first distance threshold, the terminal device may maintain the zoom magnification of the camera at the first magnification. When the shooting distance is greater than the first distance threshold and less than the second distance threshold, the terminal device may adjust the zoom magnification of the camera to gradually increase as the shooting distance increases. When the shooting distance is greater than or equal to the second distance threshold, the terminal device may maintain the zoom magnification of the camera at the second magnification.

The first distance threshold is smaller than the closest focusing distance of the camera, and the second distance threshold is greater than the closest focusing distance of the camera. For example, when the closest focusing distance of the camera is 10 cm, the first distance threshold may be 8 cm, and the second distance threshold may be 15 cm. The first distance threshold and the second distance threshold are both preset values, and the present application does not limit the specific sizes of the first distance threshold and the second distance threshold.

The first magnification is the default zoom magnification of the camera when the terminal device starts the camera to shoot, such as 1X. The second magnification may be the maximum zoom magnification of the mobile phone camera, such as: 2X, 2.5X, etc. Alternatively, the second magnification may be smaller than the maximum zoom magnification of the mobile phone camera. The second magnification is greater than the first magnification. This application does not limit the default zoom magnification of the camera, the maximum zoom magnification of the camera, and the size of the second magnification.

In this shooting method, after the terminal device enters the remote shooting state, in the process that the user gradually moves the terminal device away from the subject being photographed, the terminal device adjusts the zoom ratio of the camera according to the shooting distance according to the above logic, so that the terminal device can The shooting FOV of is not significantly changed when the shooting distance is within the range from the first distance threshold to the second distance threshold. Therefore, after the terminal device enters the far-point shooting state, when the user gradually moves the terminal device away from the subject being shot, when the preview screen becomes clear (indicating that the shooting distance at this time is greater than or equal to the closest focus of the camera) distance), the shooting operation can be performed again to trigger the terminal device to take a second photo. The shooting FOV of the second photo can be nearly equal to the above-mentioned first photo, but the second photo is clearer than the first photo.

In addition, in this shooting method, the user does not need to actively adjust the zoom ratio of the camera, the number of interactions between the user and the terminal device is small, and the shooting FOV of the terminal device does not jump, and the user does not need to recompose the shot.

Taking the terminal device as a mobile phone as an example below, the photographing method provided by the embodiment of the present application is exemplarily described with reference to the accompanying drawings.

Exemplarily, taking the terminal device as a mobile phone as an example, FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 7 , the mobile phone may include a processor 710 and an internal memory 721 .

The processor 710 may include one or more processing units, for example, the processor 710 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

Among them, the controller can be the nerve center and command center of the mobile phone. The controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.

Internal memory 721 may be used to store computer executable program code, which includes instructions. The processor 710 executes various functional applications and data processing of the mobile phone by executing the instructions stored in the internal memory 721 . For example, the photographing method provided by the embodiments of the present application may be embodied in the form of a software product (eg, program code), the program code corresponding to the photographing method may be stored in the internal memory 721, and the processor 710 may store it in the internal memory 721 by running The program code corresponding to the shooting method in can enable the mobile phone to implement the shooting method described in the embodiments of the present application.

The internal memory 721 may include a storage program area and a storage data area. The storage program area may store an operating system, an application program required for at least one function (such as a camera function, an image playback function, etc.), and the like. The storage data area can store data (such as image data, phone book, etc.) created during the use of the mobile phone. In addition, the internal memory 721 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like.

A memory may also be provided in the processor 710 for storing instructions and data. In some embodiments, the memory in processor 710 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 710 . If the processor 710 needs to use the instruction or data again, it can be called directly from the memory. Repeated accesses are avoided and the waiting time of the processor 710 is reduced, thereby increasing the efficiency of the system.

Please continue to refer to FIG. 7 , the mobile phone may further include an external memory interface 720, a universal serial bus (USB) interface 730, a charging management module 740, a power management module 741, a battery 742, an antenna 1, an antenna 2, Mobile communication module 750, wireless communication module 760, audio module 770, speaker 770A, receiver 770B, microphone 770C, headphone jack 770D, sensor module 780, buttons 790, motor 791, indicator 792, camera 793, display screen 794, and user Identity module (subscriber identification module, SIM) card interface 795 and so on.

The sensor module 780 may include a pressure sensor 780A, a gyro sensor 780B, an air pressure sensor 780C, a magnetic sensor 780D, an acceleration sensor 780E, a distance sensor 780F, a proximity light sensor 780G, a fingerprint sensor 780H, a temperature sensor 780J, a touch sensor 780K, and an ambient light sensor 780L, bone conduction sensor 780M, etc. Wherein, the distance sensor 780F may be a laser sensor, which may be used for obtaining the photographing distance between the mobile phone and the subject to be photographed during the photographing process of the mobile phone.

In some embodiments, processor 710 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, SIM interface, and/or USB interface, etc.

During the shooting process of the mobile phone, the RAW image can be captured by the camera 793. For example, the camera 793 may include a lens and a sensor. When taking photos or videos, open the shutter, and light can be transmitted to the sensor through the lens of the camera 793. The sensor can convert the optical signal passing through the lens into an electrical signal, and then perform A/D conversion on the electrical signal to output the corresponding digital signal. The digital signal undergoes subsequent RAW domain processing, ISP processing, and YUV domain processing, etc., to obtain a photographed or video image.

In a possible design, the photosensitive element of the sensor may be a charge coupled device (CCD), and the sensor also includes an A/D converter. In another possible design, the photosensitive element of the sensor may be a complementary metal-oxide-semiconductor (CMOS).

Display screen 794 is used to display images, videos, and the like. For example, the display screen 794 may be used to display a mobile phone shooting interface, and the shooting interface may include a preview screen. Display screen 794 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light). emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) and so on. In some embodiments, the cell phone may include 1 or N display screens 794, where N is a positive integer greater than 1.

The mobile phone realizes the display function through the GPU, the display screen 794, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 794 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 710 may include one or more GPUs that execute program instructions to generate or alter display information.

It can be understood that the structure shown in FIG. 7 does not constitute a specific limitation on the mobile phone. In some embodiments, the mobile phone may also include more or less components than those shown in FIG. 7 , or combine some components, or separate some components, or different component arrangements, and the like. Alternatively, some of the components shown in FIG. 7 may be implemented in hardware, software, or a combination of software and hardware.

In addition, when the terminal device is other tablet computers, wearable devices, vehicle-mounted devices, AR/VR devices, notebook computers, UMPCs, netbooks, PDAs and other mobile terminals, or digital cameras, SLR cameras/mirror cameras, action cameras, cloud When using professional shooting equipment such as cameras and drones, the specific structures of these other terminal equipment can also be referred to as shown in Figure 7. Exemplarily, other terminal devices may have components added or reduced on the basis of the structure given in FIG. 7 , which will not be repeated here.

It should also be understood that one or more shooting applications may run in the terminal device (such as a mobile phone), so that the shooting function can be realized by running the shooting applications. For example, the camera application may include a system-level application "camera" application. For another example, the photographing application may also include other applications installed in the terminal device that can be used for photographing.

In this embodiment of the present application, the terminal device may include only one main camera, or may include multiple cameras such as a main camera, a telephoto camera, a blur camera, and an ultra-wide-angle camera. In the shooting method provided by the embodiment of the present application, the terminal device can complete shooting only by using the main camera.

FIG. 8 is a schematic flowchart of a photographing method provided by an embodiment of the present application. As shown in Figure 8, the method includes:

S801. The mobile phone starts and runs the photographing application in response to the user's operation of starting the photographing application.

Exemplarily, before using the mobile phone to take pictures (photographs or videos), the user may first start a photographing application of the mobile phone. For example, the shooting application of the mobile phone may include a camera application, the user can click or touch the icon of the camera on the mobile phone, and the mobile phone can start and run the camera application in response to the user's click or touch operation on the icon of the camera (or, the user can also use the The voice assistant launches the camera app, no restrictions).

After the mobile phone starts and runs the shooting application, a shooting interface can be presented to the user, and at the same time, the mobile phone can also obtain a preview image corresponding to the current shooting scene through the camera, and display it in the shooting interface. For example, S802 can be executed.

S802, the mobile phone obtains a preview image corresponding to the current shooting scene through the camera, and displays it through the shooting interface of the shooting application.

In the embodiment of the present application, when the mobile phone acquires the preview image, the zoom magnification of the camera is the default first magnification, for example, the first magnification may be 1X.

Taking the current shooting scene as the scene shown in Figure 1 as an example, the mobile phone can obtain a preview screen corresponding to the text "HUAWEI" in the scene shown in Figure 1 through the camera, and display it on the shooting interface for the user to preview.

Exemplarily, a distance sensor such as a laser sensor and an infrared sensor may be configured in the mobile phone, and the mobile phone may detect the shooting distance between the mobile phone and the subject to be photographed through the aforementioned distance sensor. The present application does not limit the specific manner in which the mobile phone detects the shooting distance between the mobile phone and the subject to be photographed.

S803, the mobile phone detects the shooting distance between the mobile phone and the subject to be photographed according to the first frequency.

For example, the mobile phone can detect the shooting distance between the mobile phone and the text "HUAWEI" in the shooting scene shown in FIG. 1 according to the first frequency.

Exemplarily, the first frequency may be 10 times/second, 15 times/second, 20 times/second, or the like. This application does not limit the size of the first frequency.

In a possible design, the first frequency may also be the same as the frame rate at which the mobile phone obtains the preview image. For example, the frame rate at which the mobile phone obtains the preview image in S802 may be 30 frames per second (FPS), and the first frequency in S803 may be 30 times/second.

When the first frequency can also be the same as the frame rate of the preview image obtained by the mobile phone, in S803, when the mobile phone detects the shooting distance between the mobile phone and the subject to be photographed, it can determine each frame of the preview image obtained by the mobile phone in S802. The shooting distance between the mobile phone and the subject to be photographed corresponding to a frame of preview image.

Optionally, in other embodiments, the mobile phone may also detect the shooting distance between the mobile phone and the subject to be photographed at a non-fixed frequency. For example, the mobile phone can detect the shooting distance between the mobile phone and the subject to be photographed at each time from the first time to the Nth time after the shooting application is started, and any two adjacent to the first time to the Nth time The intervals between the moments can be equal or unequal. Wherein, N is an integer greater than 0. This application is not limited here.

It should be noted that, in this embodiment of the present application, after the mobile phone starts and runs the photographing application, the foregoing S802 and S803 may be executed synchronously, and the sequence is not limited.

S804, the mobile phone receives the shooting operation of the user.

Exemplarily, after the mobile phone starts the photographing application, the photographing interface may further include a photographing button. The essence of the photographing button may be a functional control displayed in the photographing interface. The user's photographing operation may refer to an operation that the user clicks or touches the photographing button. When a user uses a mobile phone to take a picture, he or she can click or touch a photographing button, and the mobile phone can take a picture in response to the user's operation of clicking or touching the photographing button.

Alternatively, in some other embodiments, the function of the camera button can also be implemented by other physical buttons on the mobile phone, which is not limited.

In the embodiment of the present application, after the mobile phone receives the user's shooting operation, the shooting function can be executed according to the logic described in the following S805-S808.

S805. When the shooting distance is less than the closest focusing distance of the camera, the mobile phone shoots a first photo in response to the user's shooting operation, and enters a far-away shooting state.

For example, the closest focusing distance of a mobile phone camera can be 10cm. When the shooting distance between the mobile phone and the text "HUAWEI" is less than 10cm, the mobile phone can respond to the user's operation of clicking the camera button to shoot the text "HUAWEI", obtain the first photo, and enter the far away state.

It is understandable that when the first photo is taken, the shooting distance between the mobile phone and the text "HUAWEI" is smaller than the closest focusing distance of the mobile phone camera, so the text "HUAWEI" in the first photo will be blurred.

Exemplarily, FIG. 9 is a schematic diagram of a mobile phone shooting interface provided by an embodiment of the present application. As shown in FIG. 9 , in the embodiment of the present application, after the mobile phone enters the state of taking pictures from a distance, text prompts can be displayed on the shooting interface: “Take pictures from a distance” 105 and “Please stay farther away to improve the picture. quality” 106. Among them, the "shoot from a distance" 105 may be used to prompt the user that the current shooting mode of the mobile phone is the state of shooting from a distance. "Please stay away, improve image quality" 106 may be used to prompt the user to move the mobile phone away from the subject to be photographed (ie, the text "HUAWEI" in the shooting scene). When the user moves the mobile phone away from the subject to be photographed, the shooting distance between the mobile phone and the subject to be photographed will gradually increase.

In this embodiment of the present application, after the mobile phone enters the remote shooting state, the above-mentioned S802 and S803 may continue to be performed. When the mobile phone continues to perform the above S802 and S803, for each detected shooting distance in S803, the mobile phone can automatically adjust the zoom of the camera according to each detected shooting distance according to the logic described in the following S806-S808. magnification.

S806, when the shooting distance is less than or equal to the first distance threshold, the mobile phone maintains the zoom magnification of the camera at the first magnification.

S807. When the shooting distance is greater than the first distance threshold and less than the second distance threshold, the mobile phone adjusts the zoom magnification of the camera to gradually increase as the shooting distance increases.

S808. When the shooting distance is greater than or equal to the second distance threshold, the mobile phone maintains the zoom magnification of the camera at the second magnification.

For details of the first distance threshold, the second distance threshold, the first magnification, and the second magnification mentioned in S806-S808, please refer to the descriptions in the foregoing embodiments, which will not be repeated.

In addition, it can be understood that in S807, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the mobile phone adjusts the zoom magnification of the camera between the first magnification and the second magnification, and the larger the shooting distance is. , the larger the zoom ratio of the camera; the smaller the shooting distance, the smaller the zoom ratio of the camera.

In the following, in conjunction with the shooting scene shown in Figure 1, the first magnification is 1X, the second magnification is 2X, the first distance threshold is 8cm, and the second distance threshold is 15cm as an example to illustrate the implementation logic of the above S806-S808. .

Exemplarily, when the mobile phone shoots the shooting scene shown in FIG. 1 and enters the remote shooting state according to the logic described in the above S805, the mobile phone according to each detected relationship between the mobile phone and the text "HUAWEI". The specific method of automatically adjusting the zoom ratio of the camera according to the shooting distance can be as follows.

1) When the shooting distance between the mobile phone and the text "HUAWEI" is less than or equal to 8cm, the mobile phone will maintain the zoom ratio of the camera at 1X.

2) When the shooting distance between the mobile phone and the text "HUAWEI" is greater than 8cm and less than 15cm, the mobile phone adjusts the zoom magnification of the camera, and gradually increases between 1X and 2X as the shooting distance increases.

That is, the closer the shooting distance between the mobile phone and the text "HUAWEI" is 15cm, the closer the zoom ratio of the camera is to 2X. The closer the shooting distance between the mobile phone and the text "HUAWEI" is 8cm, the closer the zoom ratio of the camera is to 1X.

For example, when the shooting distance between the mobile phone and the text "HUAWEI" is 9cm, the mobile phone can adjust the zoom ratio of the camera to 1.2X. When the shooting distance between the mobile phone and the text "HUAWEI" is 13cm, the mobile phone can adjust the zoom ratio of the camera to 1.7X. When the shooting distance between the mobile phone and the text "HUAWEI" is 14cm, the mobile phone can adjust the zoom ratio of the camera to 1.9X, etc.

3) When the shooting distance between the mobile phone and the text "HUAWEI" is greater than or equal to 15cm, the mobile phone will maintain the zoom ratio of the camera at 2X.

It can be seen that after the mobile phone enters the far point shooting state, through the logic described in the above S806-S808, when adjusting the zoom ratio of the camera according to the shooting distance, if the shooting distance is greater than the first distance threshold and less than the first distance threshold. Within the range of the two distance thresholds, the zoom ratio of the camera gradually increases with the increase of the shooting distance. Therefore, when the user moves the mobile phone away from the subject to be photographed, if the shooting distance gradually increases within the range greater than the first distance threshold and less than the second distance threshold, the shooting FOV of the mobile phone will not change significantly. For example, Not reduced or not significantly reduced.

Therefore, after the mobile phone enters the far-point shooting state, when the user moves the mobile phone away from the subject to be photographed until the shooting distance is greater than the closest focusing distance of the camera and less than the second distance threshold (if the user sees that the preview screen becomes clear, then Indicates that the shooting distance is greater than the closest focusing distance of the camera), the user performs the shooting operation again to trigger the FOV of the second photo captured by the mobile phone, which can be almost the same as the first photo captured in S805, but the second photo is clearer than the first photo.

It should be understood that when the mobile phone enters the far point shooting state, during the process of adjusting the zoom ratio of the camera, when the user performs a secondary shooting operation, regardless of whether the shooting distance is greater than the camera's closest focusing distance, the mobile phone can respond to The user's secondary shooting operation is to shoot a second photo. In the embodiment of the present application, only when the shooting distance is greater than the closest focusing distance of the camera and less than the second distance threshold, the shooting FOV of the second photo shot by the mobile phone in response to the second shooting operation can be nearly equal to the first shot in S805. One photo, and the second photo is clearer than the first photo.

Optionally, in some embodiments, after the mobile phone enters the far-point shooting state, when the user moves the mobile phone away from the subject to be photographed until the shooting distance is greater than the closest focusing distance of the camera, the shooting interface of the mobile phone may no longer display. A text prompt: "Please stay further away to improve the picture quality" 106 to remind the user that the second shooting operation can be performed at this time, and there is no need to stay away from the mobile phone.

For example, FIG. 10 is another schematic diagram of a mobile phone shooting interface provided by an embodiment of the present application. As shown in Figure 10, after the mobile phone enters the far-point shooting state, when the user moves the mobile phone away from the subject to be photographed until the shooting distance is greater than the closest focusing distance of the camera, the text prompt can no longer be displayed in the mobile phone shooting interface: "Please Move further away and improve picture quality” 106.

Optionally, if the mobile phone captures a second photo in response to a shooting operation performed by the user again (which may be referred to as a secondary shooting operation), the mobile phone can replace the aforementioned first photo with the second photo as the final captured photo. Therefore, the user can use the mobile phone to take a clearer photo, and the FOV is almost equivalent to taking a close-up photo.

For example, the photographing method may further include S809-S811.

S809, the mobile phone receives a secondary shooting operation performed by the user when the preview image is clear.

The secondary photographing operation is the same as the photographing operation described in the above S804, and will not be repeated here.

S810. The mobile phone takes a second photo in response to the user's second shooting operation.

S811. The mobile phone replaces the first photo with the second photo.

Exemplarily, both the first photo and the second photo may be photos obtained by encoding a YUV image by a mobile phone, such as a JPEG image.

From the above, in the shooting method provided by the embodiment of the present application, when the user wants to use the terminal device to shoot a first photo at a close distance within the range where the shooting distance is less than the closest focusing distance of the camera: Take a first photo at close range, and then assist the user to take a second photo with a FOV that is almost the same as the first photo but with a clearer picture within a range that is greater than or equal to the closest focusing distance of the camera. Therefore, the user can use the terminal device to take a second photo whose magnification effect can be almost equal to the close-up shooting effect of the first photo, and the picture is clearer.

In addition, in this shooting method, the user does not need to actively adjust the zoom ratio of the camera, the number of interactions between the user and the terminal device is small, and the shooting FOV of the terminal device does not jump, and the user does not need to recompose the image.

Optionally, in some other embodiments, S811 may not be included in the process shown in FIG. 8 . That is, the mobile phone may not replace the first photo with the second photo. For example, the mobile phone can save both the first photo and the second photo in the mobile phone gallery, and the user can choose whether to delete the first photo in the mobile phone gallery, which is not limited here.

Optionally, in the embodiment of the present application, the logic described in the above S806-S808 may be implemented by preconfiguring the correspondence between the shooting distance and the zoom ratio in the mobile phone. After the mobile phone enters the far away shooting state, you can query the corresponding relationship according to the shooting distance, and adjust the zoom ratio of the camera.

In some embodiments, in the correspondence between the shooting distance and the zoom magnification, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, there may be a nonlinear relationship between the shooting distance and the zoom magnification, and the zoom magnification may vary. It increases non-linearly with the increase of shooting distance.

For example, assuming that the first magnification is 1X, the second magnification is 2X, the first distance threshold is 8cm, and the second distance threshold is 15cm, as an example, FIG. 11 is an example between the shooting distance and the zoom magnification provided by the embodiment of the application. Schematic diagram of the corresponding relationship. As shown in FIG. 11 , when the shooting distance is greater than 8 cm and less than 15 cm, the zoom magnification increases nonlinearly as the shooting distance increases. Exemplarily, according to the corresponding relationship shown in Figure 11, when the shooting distance between the mobile phone and the subject to be photographed is 9cm, the mobile phone can adjust the zoom ratio of the camera to 1.1X; the shooting distance between the mobile phone and the subject to be photographed is: When the distance between the mobile phone and the subject is 13cm, the mobile phone can adjust the zoom ratio of the camera to 1.7X; the distance between the mobile phone and the subject is 1.7X. When the shooting distance is 14cm, the mobile phone can adjust the zoom ratio of the camera to 1.9X, etc.

In some other embodiments, in the correspondence between the shooting distance and the zoom magnification, when the shooting distance is greater than the first distance threshold and smaller than the second distance threshold, there may also be a linear relationship between the shooting distance and the zoom magnification, and the zoom magnification It can increase linearly as the shooting distance increases.

For example, also taking the first magnification as 1X, the second magnification as 2X, the first distance threshold as 8cm, and the second distance threshold as 15cm as an example, FIG. 12 is another example of the difference between the shooting distance and the zoom magnification provided by the embodiment of the application. A schematic diagram of a correspondence relationship. As shown in FIG. 12 , when the shooting distance is greater than 8 cm and less than 15 cm, the zoom magnification increases linearly with the increase of the shooting distance. No further examples will be given.

In the correspondence between the shooting distance and the zoom magnification, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, and there is a linear relationship between the shooting distance and the zoom magnification, the user is moving the mobile phone away from the subject being photographed. During the process, the change range of the shooting FOV of the mobile phone can be smaller.

It should be noted that, in the correspondence between the shooting distance and the zoom magnification in the embodiment of the present application, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, there is a linear relationship between the shooting distance and the zoom magnification or Non-linear relationships are not limiting. In addition, it should be understood that FIGS. 11 and 12 are merely two exemplary illustrations of nonlinear and linear relationships in the present application.

The above describes that when the mobile phone receives the user's shooting operation and the shooting distance is less than the closest focusing distance of the camera, the mobile phone first takes a first photo at a close distance, and then enters the far point shooting state to assist the user when the shooting distance is greater than or Within the range equal to the closest focusing distance of the camera, the process of taking a second photo with FOV almost equivalent to the first photo but with a clearer picture.

Optionally, during actual shooting, there is also a situation that the mobile phone is receiving a shooting operation from the user, and the shooting distance is greater than or equal to the closest focusing distance of the camera. In view of this situation, in this embodiment of the present application, the mobile phone can take pictures directly in response to the user's taking operation.

Optionally, in the embodiment of the present application, after the mobile phone enters the far-away shooting state, the mobile phone can prompt the text in the shooting interface: "Far away and take a picture" 105, and "Please stay farther away to improve the picture. "Quality" 106 displays a preset first duration, for example, the first duration may be 5 seconds (S), 6S, and the like. When the mobile phone enters the remote shooting state for the first time period and still does not receive a second shooting operation from the user, the mobile phone can automatically exit the remote shooting state.

Alternatively, after the mobile phone enters the remote shooting state, when it continuously detects M times (M is an integer greater than 0, for example, M can be 10), when the shooting distance is greater than the above-mentioned second distance threshold, the mobile phone can also automatically exit the remote shooting. Shoot the state.

It is understandable that when the mobile phone exits the far-point shooting state, the zoom ratio of the mobile phone camera can be switched from the zoom ratio adjusted in the far-point shooting state to the default first zoom ratio (eg: 1X). At this time, the mobile phone is in a normal shooting state, and the degree of clarity or blur of the preview image displayed in the shooting interface of the mobile phone is related to the shooting distance between the mobile phone and the subject to be photographed, and will not be repeated here.

Optionally, in the embodiment of the present application, after the mobile phone enters the remote shooting state, the user may also actively operate to trigger the mobile phone to exit the remote shooting state.

For example, please refer to the above-mentioned Fig. 9 and/or Fig. 10, after the mobile phone enters the remote shooting state, the text prompt displayed in the shooting interface: after "shooting from a distance" 105, it may also include a message for exiting The function control "X" 107 of the far away state. The user can actively click the function control "X" 107 to trigger the mobile phone to exit the far-away shooting state.

For another example, the user can also trigger the mobile phone to exit the far-point shooting state by manually zooming on the mobile phone. Exemplarily, please refer to FIG. 9 and/or FIG. 10 , the 1X and the black dots around it displayed in the camera interface of the mobile phone can be used as zoom function controls (different black dots correspond to different zoom magnifications). You can click the zoom function control in the mobile phone shooting interface to manually zoom. For example, the zoom ratio corresponding to the first black dot above 1X in the mobile phone shooting interface can be 1.5X. When the user clicks the 1.5X function control, the mobile phone can respond to the user's operation of clicking the 1.5X function control. The zoom ratio is switched to 1.5X. After the mobile phone enters the far-point shooting state, when it is detected that the user performs a manual zoom operation, it can exit the far-point shooting state.

The embodiments of the present application do not limit the operation manner in which the user actively triggers the mobile phone to exit the remote shooting state after the mobile phone enters the remote shooting state. Among them, for the way in which the user clicks the function control "X" 107 for exiting the remote shooting state, when the mobile phone detects that the number of times the user manually exits the remote shooting state reaches a preset number of times (such as 3 times), In the future, the mobile phone can no longer be triggered to enter the remote shooting state to ensure a better user experience.

Optionally, in the embodiment of the present application, after each time the mobile phone starts and runs the shooting application, when the mobile phone detects that the user has performed manual zooming before entering the far-point shooting state, the mobile phone may no longer enter the far-point shooting state. Shooting status. For example, before the mobile phone enters the remote shooting state, when it is detected that the user actively adjusts the zoom ratio of the mobile phone camera from the default 1X to 2X, even if the subsequent mobile phone receives the user's shooting operation, and the mobile phone and the subject are photographed When the shooting distance between the two is smaller than the closest focusing distance of the camera, the mobile phone can no longer enter the far point shooting state during the current operation of the shooting application.

Optionally, in the embodiment of the present application, when the mobile phone adjusts the zoom magnification of the camera in the manner described in the preceding embodiments, if the mobile phone is in a far-away shooting state, the zoom magnification of the camera is adjusted to the second. The phone can also temporarily lock the zoom ratio of the camera to the second ratio, so as to avoid the phone repeatedly adjusting the zoom ratio of the camera back and forth when the shooting distance between the phone and the subject is repeatedly changed due to the user's hand shaking. However, it should be understood that when the mobile phone detects the triggering condition for exiting the remote shooting state described in the foregoing embodiment, it will immediately adjust the zoom magnification of the camera to the default first magnification.

Optionally, in the shooting method provided in the embodiment of the present application, before the terminal device receives the shooting operation from the user, it can also determine whether the user has used the terminal device to shoot the subject according to the shooting distance between the terminal device and the subject to be shot. The tendency of the subject to take close-up shots. If the user has a tendency to use the terminal device to take a close-up photograph of the subject being photographed, the terminal device may enter a zoom-in state. After the terminal device enters the zoom-in state, the terminal device can adjust the zoom ratio of the camera to increase as the shooting distance decreases within the range that the shooting distance is greater than or equal to the closest focusing distance of the camera, so that the shooting FOV of the terminal device is within the current range. When shooting at a distance, it can be nearly equivalent to the camera's zoom magnification, which is the default first magnification, and the shooting FOV when the shooting distance is smaller.

That is to say, after the terminal device enters the zoom-in state, when the shooting distance is greater than or equal to the closest focusing distance of the camera, the zoom-in effect of the captured photo can be compared with the zoom-in state of the terminal device (the zoom of the camera). The magnification is the default first magnification), and the magnification effect of the photos taken when the shooting distance is smaller is almost the same (or the same). In this way, the photos taken by the user using the terminal device can not only achieve the desired zoom-in effect of close-up shooting, but also ensure the clarity of the photos. For example, assuming that the terminal device does not enter the zoom-in state, the photo taken by the user using the terminal device when the shooting distance is less than the closest focusing distance of the camera is the first photo; the terminal device enters the zoom-in state, and the user uses the terminal device when the shooting distance is greater than or The photo taken when it is equal to the closest focusing distance of the camera is the second photo. Then, the second photo can not only have a magnification effect nearly equal to that of the first photo, but also be clearer than the first photo.

In some embodiments, before the terminal device receives the user's shooting operation, according to the shooting distance between the terminal device and the subject to be photographed, the method of determining whether the user has a tendency to use the terminal device to shoot the subject at close range may include: : If the terminal device continuously detects that the shooting distance is smaller than the third distance threshold for N times, it is determined that the user has a tendency to use the terminal device to shoot the subject at close range. Otherwise, it is considered that the user has no tendency to use the terminal device to take a close-up photograph of the subject being photographed. That is, in this embodiment, when the terminal device continuously detects that the shooting distance is smaller than the third distance threshold for N times, the terminal device can enter the zoom-in shooting state.

The third distance threshold is greater than the closest focusing distance of the camera, and N may be an integer greater than 0, such as 10, 11, 12, etc. For example, the closest focusing distance of the camera of the terminal device may be 10 cm, and the third distance threshold may be 20 cm. Both the third distance threshold and N are preset values, and neither the third distance threshold nor the size of N is specifically limited in this embodiment of the present application.

The photographing method will be described below with reference to the flow shown in FIG. 13 . FIG. 13 is another schematic flowchart of a photographing method provided by an embodiment of the present application. As shown in FIG. 13 , the photographing method may include S1301-S1317. Wherein, S1304 and S1312 are in an "or" relationship. When the mobile phone first receives the user's shooting operation, the mobile phone can execute the process of S1304-S1311. When the mobile phone continuously detects that the shooting distance is smaller than the third distance threshold for N times before receiving the shooting operation of the user, the mobile phone may execute the process of S1312-S1317.

Specifically, 1301-S1311 are respectively the same as the aforementioned S801-S811 shown in FIG. 8 , and will not be repeated here. S1312-S1317 are described below:

S1312 , when it is continuously detected that the shooting distance is smaller than the third distance threshold for N times, the mobile phone enters a zoom-in shooting state.

For example, take the third distance threshold as 20cm as an example. When a user wants to use a mobile phone for close-up photography, the user may gradually bring the mobile phone closer to the subject to be photographed. At this time, if the mobile phone has N consecutive shooting distances of less than 20cm, it can enter the zoom-in shooting state.

Exemplarily, FIG. 14 is another schematic diagram of a mobile phone camera interface provided by an embodiment of the present application. As shown in FIG. 14 , in the embodiment of the present application, after the mobile phone enters the zoom-in state, a text prompt: “zoom-in” 201 may be displayed in the shooting interface. The "zoom-in" 201 may be used to prompt the user that the current shooting mode of the mobile phone is the zoom-in state.

In addition, when the phone just enters the zoom-in state, the zoom magnification of the camera is the default first magnification (eg: 1X).

In this embodiment of the present application, after the mobile phone enters the zoom-in state, S1302 and S1303 may be continuously executed. In the process of continuing to execute the above S1302 and S1303, the mobile phone can automatically adjust the zoom of the camera according to each detected shooting distance according to the logic described in the following S1313-S1315 for each detected shooting distance in S1303. magnification.

S1313, when the shooting distance is greater than or equal to the third distance threshold, the mobile phone maintains the zoom magnification of the camera at the first magnification.

S1314. When the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the mobile phone adjusts the zoom ratio of the camera to gradually increase as the shooting distance decreases.

S1315. When the shooting distance is less than or equal to the closest focusing distance of the camera, the mobile phone maintains the zoom magnification of the camera at the second magnification.

For details of the third distance threshold, the first magnification, and the second magnification mentioned in S1313-S1315, please refer to the descriptions in the foregoing embodiments, which will not be repeated.

In addition, it can be understood that in S1314, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the mobile phone adjusts the zoom magnification of the camera between the first magnification and the second magnification. Larger, the smaller the zoom ratio of the camera; the smaller the shooting distance, the larger the zoom ratio of the camera.

The following also combines the shooting scene shown in Figure 1, taking the first magnification as 1X, the second magnification as 2X, the third distance threshold as 20cm, and the closest focusing distance of the mobile phone camera as 10cm as an example, the implementation logic of the above S1313-S1315 Give an example.

Exemplarily, when the mobile phone shoots the shooting scene shown in FIG. 1, and before receiving the shooting operation from the user, after entering the zoom-in shooting state according to the logic described in the above S1312, the mobile phone according to each detected mobile phone and text. The specific way to automatically adjust the zoom ratio of the camera for the shooting distance between "HUAWEI" can be as follows.

1) When the shooting distance between the mobile phone and the text "HUAWEI" is greater than or equal to 20cm, the mobile phone will maintain the zoom ratio of the camera at 1X.

2) When the shooting distance between the mobile phone and the text "HUAWEI" is less than 20cm and greater than 10cm, the mobile phone adjusts the zoom ratio of the camera, and gradually increases between 1X and 2X as the shooting distance decreases.

That is, the closer the shooting distance between the mobile phone and the text "HUAWEI" is 10cm, the closer the zoom ratio of the camera is to 2X. The closer the shooting distance between the mobile phone and the text "HUAWEI" is 20cm, the closer the zoom ratio of the camera is to 1X.

For example, when the shooting distance between the mobile phone and the text "HUAWEI" is 18cm, the mobile phone can adjust the zoom ratio of the camera to 1.2X. When the shooting distance between the mobile phone and the text "HUAWEI" is 15cm, the mobile phone can adjust the zoom ratio of the camera to 1.5X. When the shooting distance between the mobile phone and the text "HUAWEI" is 12cm, the mobile phone can adjust the zoom ratio of the camera to 1.8X, etc.

3) When the shooting distance between the mobile phone and the text "HUAWEI" is less than or equal to 10cm, the mobile phone will maintain the zoom ratio of the camera at 2X.

In the embodiment of the present application, after the mobile phone enters the zoom-in shooting state, according to the logic described in S1313-S1315, in the process of adjusting the zoom ratio of the camera, if the mobile phone receives the user's shooting operation, the mobile phone can respond to the user's shooting operation. Shooting operation to shoot. For example, the shooting method may further include S1316-S1317.

S1316, the mobile phone receives the user's shooting operation.

S1317 , the mobile phone shoots in response to the user's shooting operation.

Specifically, for the shooting operation of the user, reference may be made to the description in the foregoing embodiments, and details are not repeated here.

It is easy to understand that when the mobile phone does not enter the zoom-in state (the zoom ratio of the camera remains unchanged at 1X), if the user brings the mobile phone close to the subject to be photographed, the shooting FOV of the mobile phone will increase to a certain extent. In the embodiment of the present application, after the mobile phone enters the zoomed-in shooting state, the zoom ratio of the camera is automatically adjusted according to the methods described in S1313-S1315, so that if the user moves the mobile phone close to the subject to be photographed, and the shooting distance is less than the third distance threshold , and is greater than the range of the closest focusing distance of the camera, the increase of the FOV of the mobile phone will be greater than the increase of the mobile phone when it is not in the zoomed-in shooting state. Therefore, the shooting FOV of the mobile phone at the current shooting distance can be almost equivalent to the shooting FOV when the zoom magnification of the camera is the default first magnification and the shooting distance is smaller.

Therefore, when the mobile phone enters the zoomed-in shooting state, when the user uses the mobile phone to shoot, the mobile phone can shoot the zoomed-in effect within the range that the shooting distance is greater than or equal to the closest focusing distance of the camera, and the mobile phone does not enter the zoomed-in shooting state, and the shooting distance is less than The camera's closest focusing distance is the same, but the picture is sharper.

Exemplarily, FIG. 15 is a schematic diagram of a screen shot when the mobile phone according to an embodiment of the present application does not enter the zoom-in shooting state and the shooting distance is 9 cm. FIG. 16 is a schematic diagram of a screen shot when the mobile phone according to an embodiment of the present application enters a zoomed-in shooting state and the shooting distance is 15 cm.

Please refer to Figure 15 and Figure 16. When the mobile phone is not in the zoom-in state and the shooting distance is 9cm, the text "HUAWEI" in the picture captured by the mobile phone is relatively blurred. When the mobile phone enters the zoom-in state and the shooting distance is 15cm, the text "HUAWEI" in the picture captured by the mobile phone is not only clearer, but also has the same magnification effect as the text "HUAWEI" in Figure 15.

In the embodiment shown in FIG. 13 above, the process of S1304-S1311 can be applied to when the mobile phone has not entered the zoomed-in shooting state, and the shooting distance between the mobile phone and the subject to be photographed is less than the closest focusing distance of the camera, the mobile phone receives the user the scene of the shooting operation. The processes described in S1312-S1315 can be applied to the scene where the mobile phone has entered the zoom-in shooting state before receiving the user's shooting operation.

For example, when the mobile phone has not yet entered the zoom-in shooting state, the user may suddenly bring the mobile phone close to the subject to be photographed, so that the shooting distance between the mobile phone and the subject to be photographed is smaller than the closest focusing distance of the camera. Or, when the mobile phone just starts and runs the shooting application, the shooting distance between the mobile phone and the subject to be photographed is already smaller than the closest focusing distance of the camera, and the mobile phone has not yet entered the zoom-in shooting state. In both cases, when the mobile phone receives the user's shooting operation, it can perform the shooting function according to the process of S1304-S1311.

Optionally, in this embodiment of the present application, after the mobile phone enters the zoomed-in shooting state, when the user uses the mobile phone to shoot, since the shooting distance between the mobile phone and the subject to be photographed changes, the mobile phone can follow the steps described in S1312-S1315 at any time. The logic automatically adjusts the zoom ratio of the camera, so the number of interactions between the user and the mobile phone is less, and the FOV of the mobile phone will not jump when the user moves the mobile phone close to the subject to be photographed, and the user does not need to do it twice. composition.

Optionally, in the embodiment shown in FIG. 13 above, the logic described in S1313-S1315 may also be implemented by preconfiguring the correspondence between the shooting distance and the zoom ratio in the mobile phone. After the mobile phone enters the zoom-in state, you can query the corresponding relationship according to the shooting distance, and adjust the zoom ratio of the camera.

It should be understood that the correspondence between the shooting distance and the zoom magnification when implementing the logic described in S1313-S1315 is different from the corresponding relationship between the shooting distance and the zoom magnification when implementing the logic described in S806-S808.

For ease of distinction, the correspondence between the shooting distance and the zoom magnification when the logical relationship described in S806-S808 is realized can be called the first correspondence, and the relationship between the shooting distance and the zoom magnification when the logic described in S1313-S1315 is realized. The correspondence relationship may be referred to as a second correspondence relationship.

In some embodiments, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, there may be a linear relationship between the shooting distance and the zoom magnification, and the zoom magnification may decrease as the shooting distance decreases. Small increases linearly.

For example, assuming that the first magnification is 1X, the second magnification is 2X, the third distance threshold is 20cm, and the closest focusing distance of the mobile phone camera is 10cm as an example, FIG. 17 is a schematic diagram of the second correspondence provided by the embodiment of the present application. As shown in FIG. 17 , when the shooting distance is less than 20 cm and greater than 10 cm, the zoom magnification increases linearly as the shooting distance decreases. Exemplarily, according to the correspondence shown in Figure 17, when the shooting distance between the mobile phone and the subject to be photographed is 19cm, the mobile phone can adjust the zoom ratio of the camera to 1.1X; the shooting distance between the mobile phone and the subject to be photographed is At 18cm, the mobile phone can adjust the zoom ratio of the camera to 1.2X; ...; when the shooting distance between the mobile phone and the subject is 12cm, the mobile phone can adjust the zoom ratio of the camera to 1.8X; the distance between the mobile phone and the subject is 1.8X; When the shooting distance is 11cm, the mobile phone can adjust the zoom ratio of the camera to 1.9X, etc.

In the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the correspondence between the shooting distance and the zoom ratio is closer to a linear relationship, and the mobile phone is in the process of approaching or moving away from the subject being photographed. , the lower the probability of shooting FOV jumps.

In some other embodiments, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the relationship between the shooting distance and the zoom magnification may also be non-linear, and the zoom magnification may vary with the shooting distance. decreases in a non-linear manner. It is not repeated here.

It should be noted that, in the second correspondence in the embodiment of the present application, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the linear or nonlinear relationship between the shooting distance and the zoom magnification does not make any difference. limit. In addition, it should be understood that FIG. 17 is merely an exemplary illustration of the linear relationship in the present application.

Optionally, similar to the manner in which the mobile phone enters the zoom-in shooting state in the foregoing embodiment, in the embodiment of the present application, after the mobile phone enters the zoom-in shooting state, when it is continuously detected that the shooting distance is greater than the third distance threshold for M times, the mobile phone can automatically Exit the zoom-in state. M is an integer greater than 0, M may be equal to or not equal to N, for example, M may be 10 times, and the size of M is not limited here.

It is understandable that after the mobile phone exits the zoom-in state, the zoom ratio of the camera of the mobile phone can be switched from the zoom ratio adjusted in the zoom-in state to the default first magnification (eg 1X). At this time, the mobile phone is in a normal shooting state, and the degree of clarity or blur of the preview image displayed in the shooting interface of the mobile phone is related to the shooting distance between the mobile phone and the subject to be photographed, and will not be repeated here.

The above describes the situation that the mobile phone automatically exits the zoom-in shooting state. Optionally, in the embodiment of the present application, after the mobile phone enters the zoom-in shooting state, the user may also actively operate to trigger the mobile phone to exit the zoom-in shooting state.

For example, please refer to FIG. 14 and/or FIG. 16 , in the embodiment of the present application, after the mobile phone enters the zoom-in state, the text prompt displayed in the shooting interface: after “zoom-in” 201, a text prompt for exiting zoom-in may also be included. The function control "X" 202 in the shooting state (it can be understood that although the function control "X" 202 and the above-mentioned function control "X" 107 have the same form in the shooting interface, their functions are different). The user can actively click the function control "X" 202 to trigger the mobile phone to exit the zoom-in shooting state.

For another example, the user can also trigger the mobile phone to exit the zoom-in shooting state by manually zooming on the mobile phone. Exemplarily, please refer to FIG. 14 and/or FIG. 16 , the 1X, 1.5X, and black dots around them displayed in the camera interface of the mobile phone can be used as zoom function controls (different black dots correspond to different zoom ratio), the user can click the zoom function control in the mobile phone shooting interface to manually zoom. For example, when the user clicks the 1.5X function control in the mobile phone shooting interface, the mobile phone can switch the zoom ratio of the camera to 1.5X in response to the user's operation of clicking the 1.5X function control. After the mobile phone enters the zoom-in shooting state, when it is detected that the user performs a manual zooming operation, it can exit the zoom-in shooting state.

This embodiment of the present application does not limit the operation manner in which the user actively triggers the mobile phone to exit the zoom-in state after the mobile phone enters the zoom-in state. Among them, for the way in which the user clicks the function control "X" 202 for exiting the zoom-in shooting state, when the mobile phone detects that the number of times the user manually exits the zoom-in shooting state reaches a preset number of times (for example, 3 times), the mobile phone can no longer trigger the subsequent operation. Enter the zoom-in state to ensure a better user experience.

Optionally, in this embodiment of the present application, after each time the mobile phone starts and runs the shooting application, when the mobile phone detects that the user has performed manual zooming before entering the zoom-in state, the mobile phone may not enter the zoom-in state. For example, before the mobile phone enters the zoom-in shooting state, when it is detected that the user actively adjusts the zoom ratio of the mobile phone camera from the default 1X to 2X, even if the subsequent mobile phone continuously detects that the shooting distance is smaller than the third distance threshold for N times, the mobile phone is shooting In the current running of the application, you can no longer enter the zoom-in state.

In the foregoing embodiments, the scenarios where the mobile phone enters the zoom-in state before receiving the user's shooting operation and the mobile phone receives the user's shooting operation before the mobile phone does not enter the zoom-in state are described respectively. Among them, for the scene where the mobile phone has not yet entered the zoomed-in shooting state and has received the user's shooting operation, when the mobile phone detects that the shooting distance is less than the closest focusing distance of the camera, the mobile phone will enter the far point shooting state to assist the user in subsequent shooting.

Optionally, in some other embodiments of the present application, for a scene where the mobile phone has not yet entered the zoomed-in shooting state and has received a shooting operation from the user, when the mobile phone detects that the shooting distance is smaller than the closest focusing distance of the camera, it can also respond to the user first. The shooting operation takes the first picture, but does not enter the remote shooting state. After taking the first photo, the mobile phone can display a text prompt on the shooting interface: "Please stay further away to improve the picture quality". Text prompt: "Please stay further away to improve the picture quality" can be used to prompt the user to move the phone away from the subject being photographed. When the mobile phone detects that the shooting distance is greater than the fourth distance threshold, the mobile phone can automatically take another second photo and replace the first photo with the second photo.

Wherein, the fourth distance threshold is greater than or equal to the closest focusing distance of the camera. For example, when the closest focusing distance of the camera is 10cm, the fourth distance threshold may be 12cm.

In this embodiment, since the shooting distance when the mobile phone takes the second photo is within the focus range of the camera, the second photo is clearer than the first photo.

Optionally, since the shooting distance when the mobile phone takes the second photo is greater than the shooting distance when the first photo is taken, the composition range of the second photo will be larger than the composition range of the first photo. In order to ensure that the composition range of the second photo is consistent with the first photo, in this embodiment, the mobile phone can also input the first photo and the second photo into an artificial intelligence (artifcial intelligence, AI) fusion algorithm, and the first photo and the second photo The overlapping areas of the composition of the photos are fused to generate a third photo as the final shot.

Exemplarily, the YUV images of the first photo and the second photo before encoding may be fused, so as to realize the fusion of the overlapping regions of the compositions of the first photo and the second photo. For example, the YUV image before encoding of the first photo can be YUV1, and the YUV image before encoding of the second photo can be YUV2. YUV1 and YUV2 can be sent to the AI fusion algorithm to fuse the overlapping areas of the composition to obtain YUV3. Then, the phone can encode YUV3 to get the third photo.

The step of fusing YUV1 and YUV2 by the AI fusion algorithm may include: judging the difference in magnification between YUV2 and YUV1 according to the shooting distance between the mobile phone corresponding to YUV1 and YUV2 and the subject being photographed. Perform feature point matching on YUV1 and YUV2, and register the overlapping area of YUV1 in YUV2. The Y channel of the overlapping region of YUV2 and YUV1 is fused into YUV1.

Optionally, in this embodiment, the mobile phone may display the text "Please stay further away and improve the picture quality" on the shooting interface for a preset second duration, such as 2S. When the mobile phone receives the user's shooting operation again within the second time period, the mobile phone may no longer perform the process of automatically shooting the second photo, and only the first photo may be retained.

Finally, it should be noted that the zoomed-in shooting state and the distant shooting state mentioned in the foregoing embodiments of the present application are only terms defined in the embodiments of the present application for the convenience of explaining the implementation of the solution. In other embodiments, , can also be defined by other terms, such as: the far point shooting state may be the first shooting state, the zooming shooting state may be the second shooting state, etc., which are not limited here. In addition, the text prompts displayed in the above-mentioned shooting interface: "zoom in and shoot" 201, "shoot from a distance" 105, and "please stay further away and improve the image quality" 106, etc., are also exemplary descriptions. , in some other embodiments, these words can also be replaced with other words with similar meanings, which are not limited here.

In this embodiment of the present application, "Please stay further away and improve the image quality" 106 may be referred to as the first prompt message.

Corresponding to the photographing methods described in the foregoing embodiments, the embodiments of the present application further provide a photographing apparatus, which can be applied to a terminal device to implement the photographing methods described in the embodiments of the present application. The functions of the apparatus may be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

FIG. 18 is a schematic structural diagram of a photographing apparatus provided by an embodiment of the present application. As shown in FIG. 18 , the photographing apparatus may include: a display module 1801 and a camera module 1802 .

The display module 1801 may include a display of a terminal device, and the camera module 1802 may include a processor of the terminal device, and program code (eg, a camera application) that the processor can invoke and execute. The display module 1801 and the camera module 1802 can implement the functions corresponding to the shooting methods described in the foregoing embodiments.

The camera module 1802 is used to detect the shooting distance between the terminal device and the subject to be photographed when the camera is activated to shoot; when receiving a shooting operation from the user and the shooting distance is less than the closest focusing distance of the camera, it will shoot the first in response to the shooting operation. a photo, and enter the first shooting state.

The display module 1801 is used to display the first prompt information after the camera module 1802 enters the first shooting state, and the first prompt information is used to prompt the user to keep the terminal device away from the subject being photographed.

The camera module 1802 is further configured to adjust the zoom ratio of the camera in the following manner according to the shooting distance after entering the first shooting state:

When the shooting distance is less than or equal to the first distance threshold, the zoom magnification of the camera is maintained at the first magnification; when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification of the camera is adjusted as the shooting distance increases. increases gradually; when the shooting distance is greater than or equal to the second distance threshold, the zoom magnification of the camera is maintained at the second magnification. The first distance threshold is smaller than the closest focusing distance of the camera, and the second distance threshold is greater than the closest focusing distance of the camera; the first magnification is the default zoom magnification of the camera when the terminal device starts the camera to shoot; the second magnification is greater than the first magnification.

After the camera module 1802 enters the first shooting state, in the process of adjusting the zoom ratio of the camera, the camera module 1802 is further configured to take a second photo in response to the second shooting operation when receiving the user's second shooting operation.

Exemplarily, the first photographing state may be referred to as a far-away photographing state, and the first prompt information may be "please move further away to improve image quality".

In some embodiments, the second magnification may be less than or equal to the maximum zoom magnification of the camera.

For example, when the maximum zoom magnification of the camera is 2.5X, the second magnification may be 2X, 2.5X, etc., and the size of the second magnification is not limited.

Optionally, the above-mentioned secondary photographing operation is a photographing operation performed by the user when the user sees that the preview image displayed by the terminal device is clear.

When the user sees that the preview screen displayed by the terminal device is clear, it indicates that the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. It can be understood that for the user, it is impossible to perceive whether the shooting distance between the terminal device and the subject to be photographed is greater than or equal to the closest focusing distance of the camera. Therefore, the user can intuitively observe whether the preview image is clear, and perform the operation when the preview image is clear. Secondary shooting operation.

Optionally, after the camera module 1802 enters the first shooting state, when the shooting distance is greater than the closest focusing distance of the camera, the display module 1801 no longer displays the first prompt information.

Optionally, the camera module 1802 is specifically configured to, after entering the first shooting state, adjust the zoom ratio of the camera according to the shooting distance and the first correspondence between the shooting distance and the zoom ratio.

The first correspondence may be preconfigured in the terminal device.

In some embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases linearly with the increase of the shooting distance.

In other embodiments, in the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases nonlinearly with the increase of the shooting distance.

In some embodiments, the camera module 1802 is also used to replace the first photo with the second photo.

In one embodiment, the camera module 1802 is further configured to, after entering the first shooting state, when the display module 1801 displays the first prompt information for the first time period, and the camera module 1802 has not received the second shooting operation, automatically Exit the first shooting state.

In another embodiment, the camera module 1802 is further configured to, after entering the first shooting state, when it is continuously detected M times (M is an integer greater than 0, for example, M can be 10) the shooting distance is greater than the above-mentioned second distance threshold , automatically exit the first shooting state.

In yet another embodiment, the camera module 1802 is further configured to, after entering the first shooting state, exit the first shooting state in response to the user's operation of actively exiting the first shooting state or an operation of manually zooming.

Optionally, the camera module 1802 is further configured to, when it is detected that the number of times the user manually exits the first shooting state reaches a preset number of times (such as 3 times), no longer triggers entering the first shooting state, so as to ensure a better user experience. .

Optionally, the camera module 1802 is further configured to stop entering the first shooting state when it is detected that the user performs manual zooming before entering the first shooting state.

Optionally, the camera module 1802 is further configured to, after entering the first shooting state, when adjusting the zoom ratio of the camera according to the shooting distance, if the zoom ratio of the camera is adjusted to the second ratio, the zoom ratio of the camera is temporarily adjusted. It is locked at the second magnification to avoid repeatedly adjusting the zoom magnification of the camera back and forth when the shooting distance between the terminal device and the subject to be photographed changes repeatedly due to the user's hand shaking.

Optionally, the camera module 1802 is further configured to, before receiving the user's shooting operation, enter the second shooting state when it is continuously detected that the shooting distance is smaller than the third distance threshold for N times. N is an integer greater than 0; the third distance threshold is greater than the closest focusing distance of the camera. And, after entering the second shooting state, according to the shooting distance, adjust the zoom ratio of the camera as follows:

When the shooting distance is greater than or equal to the third distance threshold, the zoom magnification of the camera is maintained at the first magnification; when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification of the camera is adjusted with the shooting distance When the shooting distance is less than or equal to the closest focusing distance of the camera, the zoom ratio of the camera is maintained at the second ratio.

After the camera module 1802 enters the second shooting state, in the process of adjusting the zoom ratio of the camera, it is also used to take a picture in response to the shooting operation when receiving the shooting operation of the user.

Exemplarily, the second photographing state may be referred to as a zoom-in photographing state.

Optionally, the camera module 1802 is specifically configured to, after entering the second shooting state, adjust the zoom ratio of the camera according to the shooting distance and the second correspondence between the shooting distance and the zoom ratio.

The second correspondence may be preconfigured in the terminal device.

In some embodiments, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases linearly as the shooting distance decreases.

In some other implementations, in the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases nonlinearly as the shooting distance decreases.

In the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the closer the correspondence between the shooting distance and the zoom magnification is to a linear relationship, the more the terminal device is in the process of approaching or moving away from the subject being photographed. , the lower the probability of shooting FOV jumps.

In one embodiment, the camera module 1802 is further configured to, after entering the second shooting state, exit the second shooting state when it is continuously detected that the shooting distance is greater than the third distance threshold for M times; M is an integer greater than 0.

In another embodiment, the camera module 1802 is further configured to, after entering the second shooting state, exit the second shooting state in response to the user's operation of actively exiting the second shooting state or an operation of manually zooming.

Optionally, the camera module 1802 is further configured to, when it is detected that the number of times the user manually exits the second shooting state reaches a preset number of times (such as 3 times), no longer triggers entering the second shooting state, so as to ensure a better user experience. .

Optionally, the camera module 1802 is further configured to, before entering the second shooting state, no longer enter the second shooting state when it is detected that the user has performed manual zooming.

It can be understood that all the functions corresponding to the shooting methods described in the foregoing embodiments can be realized by the shooting device, which will not be repeated here.

It should be understood that the division of units (or referred to as modules) in the above apparatus is only a division of logical functions, and in actual implementation, it may be fully or partially integrated into a physical entity, or may be physically separated. And all the units in the device can be realized in the form of software calling through the processing element; also can all be realized in the form of hardware; some units can also be realized in the form of software calling through the processing element, and some units can be realized in the form of hardware.

For example, each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing. Function. In addition, all or part of these units can be integrated together, and can also be implemented independently. The processing element described here may also be called a processor, which may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.

In one example, the units in the above apparatus may be one or more integrated circuits configured to implement the above method, eg, one or more application specific integrated circuits (ASICs), or, one or more A digital signal processor (DSP), or, one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuit forms.

For another example, when a unit in the apparatus can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processors that can invoke programs. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

In one implementation, the unit of the above apparatus for implementing each corresponding step in the above method may be implemented in the form of a processing element scheduler. For example, the apparatus may include a processing element and a storage element, and the processing element invokes a program stored in the storage element to execute the method described in the above method embodiments. The storage element may be a storage element on the same chip as the processing element, ie, an on-chip storage element.

In another implementation, the program for performing the above method may be in a storage element on a different chip from the processing element, ie, an off-chip storage element. At this time, the processing element calls or loads the program from the off-chip storage element to the on-chip storage element, so as to call and execute the methods described in the above method embodiments.

For example, an embodiment of the present application may further provide a terminal device, which may include: a processor, a memory, and a computer program; wherein, the computer program is stored in the memory, and when the computer program is executed by the processor, the terminal device executes as described above. Shooting method described in the embodiment. The memory may be located within the terminal device or outside the terminal device. And the processor includes one or more.

Exemplarily, the terminal device may be a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR)/virtual reality (VR) device, a notebook computer, an ultra-mobile personal computer (ultra-mobile) personal computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA) and other mobile terminals. Alternatively, the terminal device may also be a professional shooting device such as a digital camera, a single-lens reflex camera/mirror-single camera, an action camera, a PTZ camera, and a drone.

In yet another implementation, the unit of the apparatus implementing each step in the above method may be configured as one or more processing elements, where the processing elements may be integrated circuits, such as: one or more ASICs, or, one or more Multiple DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.

For example, an embodiment of the present application further provides a chip, which can be applied to the above-mentioned terminal device. The chip includes one or more interface circuits and one or more processors; the interface circuit and the processor are interconnected by lines; the processor receives and executes computer instructions from the memory of the electronic device through the interface circuit, so as to realize the above-mentioned embodiments. Shooting method.

Embodiments of the present application further provide a computer program product, including computer-readable codes, when the computer-readable codes are executed in a terminal device, the terminal device can implement the shooting methods described in the foregoing embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium.

Based on this understanding, the technical solutions of the embodiments of the present application essentially or contribute to the prior art, or all or part of the technical solutions may be embodied in the form of software products, such as programs. The software product is stored in a program product, such as a computer-readable storage medium, and includes several instructions to cause a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all of the methods described in the various embodiments of the present application. or part of the steps. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

For example, the embodiments of the present application may further provide a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by the electronic device, the electronic device is made to implement the photographing method described in the foregoing embodiments.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (14)

1. A shooting method, characterized in that the method comprises:

   When the terminal device starts the camera to shoot, it detects the shooting distance between the terminal device and the subject to be photographed;

   When the terminal device receives the user's shooting operation and the shooting distance is less than the closest focusing distance of the camera, the terminal device shoots a first photo in response to the shooting operation, and enters a first shooting state;

   After the terminal device enters the first shooting state, first prompt information is displayed, and the first prompt information is used to prompt the user to keep the terminal device away from the subject to be photographed; and, according to the shooting distance, according to Adjust the zoom ratio of the camera as follows:

   When the shooting distance is less than or equal to the first distance threshold, the terminal device maintains the zoom magnification of the camera at the first magnification; when the shooting distance is greater than the first distance threshold and less than the second distance threshold , the terminal device adjusts the zoom magnification of the camera to gradually increase as the shooting distance increases; when the shooting distance is greater than or equal to the second distance threshold, the terminal device adjusts the The zoom magnification of the camera is maintained at the second magnification;

   Wherein, the first distance threshold is smaller than the closest focusing distance of the camera, and the second distance threshold is greater than the closest focusing distance of the camera; the first magnification is when the terminal device starts the camera to shoot, the default zoom magnification of the camera; the second magnification is greater than the first magnification;

   After the terminal device enters the first shooting state, in the process of adjusting the zoom ratio of the camera, when receiving a second shooting operation from the user, the terminal device responds to the second shooting operation and shoots Second photo.
2. The method according to claim 1, wherein the second magnification is less than or equal to the maximum zoom magnification of the camera.
3. The method according to claim 1 or 2, wherein the secondary photographing operation is a photographing operation performed by the user when the user sees that the preview image displayed by the terminal device is clear.
4. The method according to claim 1 or 2, wherein the method further comprises:

   After the terminal device enters the first shooting state, when the shooting distance is greater than the closest focusing distance of the camera, the terminal device no longer displays the first prompt information.
5. The method according to any one of claims 1-4, wherein after the terminal device enters the first shooting state, the step of adjusting the zoom ratio of the camera according to the shooting distance includes:

   The terminal device adjusts the zoom ratio of the camera according to the shooting distance and the first correspondence between the shooting distance and the zoom ratio;

   In the first correspondence, when the shooting distance is greater than the first distance threshold and less than the second distance threshold, the zoom magnification increases linearly or non-linearly as the shooting distance increases.
6. The method according to any one of claims 1-5, wherein the method further comprises:

   The terminal device replaces the first photo with the second photo.
7. The method according to any one of claims 1-6, wherein the method further comprises:

   After the terminal device enters the first shooting state, the terminal device exits the first shooting state when the second shooting operation is not received after displaying the first prompt information for a first duration .
8. The method according to any one of claims 1-7, wherein the method further comprises:

   After the terminal device enters the first shooting state, the terminal device exits the first shooting state in response to the user's operation of actively exiting the first shooting state or an operation of manually zooming.
9. The method according to any one of claims 1-8, wherein the method further comprises:

   When the terminal device continuously detects that the shooting distance is smaller than the third distance threshold for N times before receiving the shooting operation from the user, the terminal device enters the second shooting state; N is an integer greater than 0; The three distance thresholds are greater than the closest focusing distance of the camera;

   After the terminal device enters the second shooting state, according to the shooting distance, the zoom ratio of the camera is adjusted as follows:

   When the shooting distance is greater than or equal to the third distance threshold, the terminal device maintains the zoom magnification of the camera at the first magnification; when the shooting distance is less than the third distance threshold and greater than When the closest focusing distance of the camera, the terminal device adjusts the zoom magnification of the camera to gradually increase as the shooting distance decreases; when the shooting distance is less than or equal to the closest focusing distance of the camera , the terminal device maintains the zoom magnification of the camera at the second magnification;

   After the terminal device enters the second shooting state, in the process of adjusting the zoom ratio of the camera, when receiving a shooting operation from the user, the terminal device takes a photo in response to the shooting operation.
10. The method according to claim 9, wherein after the terminal device enters the second shooting state, the step of adjusting the zoom ratio of the camera according to the shooting distance comprises:

    The terminal device adjusts the zoom ratio of the camera according to the shooting distance and the second correspondence between the shooting distance and the zoom ratio;

    In the second correspondence, when the shooting distance is less than the third distance threshold and greater than the closest focusing distance of the camera, the zoom magnification increases linearly or non-linearly as the shooting distance decreases. .
11. The method according to claim 9 or 10, wherein the method further comprises:

    After the terminal device enters the second shooting state, when it is continuously detected that the shooting distance is greater than the third distance threshold for M times, the terminal device exits the second shooting state; M is an integer greater than 0 .
12. The method according to any one of claims 9-11, wherein the method further comprises:

    After the terminal device enters the second shooting state, the terminal device exits the second shooting state in response to the user's operation of actively exiting the second shooting state or an operation of manually zooming.
13. A terminal device, comprising: a processor, a memory, and a computer program;

    Wherein, the computer program is stored on the memory, and when the computer program is executed by the processor, the terminal device is made to execute the method according to any one of claims 1-12.
14. A computer-readable storage medium, the computer-readable storage medium comprising a computer program, characterized in that, when the computer program is run on a terminal device, the terminal device is made to execute any one of claims 1-12 the method described.

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