CN110661970B

CN110661970B - Photographing method and device, storage medium and electronic equipment

Info

Publication number: CN110661970B
Application number: CN201910873999.3A
Authority: CN
Inventors: 黄旭
Original assignee: Realme Chongqing Mobile Communications Co Ltd
Current assignee: Realme Chongqing Mobile Communications Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2021-08-24
Anticipated expiration: 2039-09-03
Also published as: CN110661970A

Abstract

The embodiment of the application discloses a photographing method, a photographing device, a storage medium and electronic equipment, wherein after entering a photographing preview mode, a plurality of cameras are used for acquiring multi-frame preview images of a photographing scene; detecting whether a shooting subject exists in a shooting scene; if the shooting scene does not have the shooting subject, taking a first camera in the multiple cameras as a target camera; if the shooting scene has the shooting subject, calculating the distance between the shooting subject and the electronic equipment, and determining a second camera matched with the distance from the plurality of cameras as a target camera; the shooting preview is carried out on the basis of the preview image corresponding to the target camera, so that the shooting scene is detected, a proper camera is automatically selected for shooting preview, and the shooting efficiency is improved.

Description

Photographing method and device, storage medium and electronic equipment

Technical Field

The present application relates to the field of image processing technologies, and in particular, to a photographing method, apparatus, storage medium, and electronic device.

Background

With the continuous development of intelligent terminal technology, the use of electronic devices (such as smart phones, tablet computers, and the like) is becoming more and more popular. Most of electronic devices are built-in with cameras, and with the enhancement of processing capability of mobile terminals and the development of camera technologies, users have higher and higher requirements for the quality of shot images.

For example, nowadays, more and more electronic devices are provided with a plurality of cameras, and in the related art, although the electronic devices are provided with a plurality of cameras, users often manually select different cameras to shoot according to different shooting scenes, which results in low shooting efficiency.

Disclosure of Invention

The embodiment of the application provides a photographing method, a photographing device, a storage medium and electronic equipment, which can improve the photographing efficiency of the electronic equipment with a plurality of cameras.

In a first aspect, an embodiment of the present application provides a photographing method, where the method is applied to an electronic device, where the electronic device includes a plurality of cameras, and the method includes:

after entering a shooting preview mode, acquiring multi-frame preview images of a shooting scene through the plurality of cameras;

detecting whether a shooting subject exists in the shooting scene;

if the shooting scene does not have a shooting subject, taking a first camera in the plurality of cameras as a target camera;

if a shooting subject exists in the shooting scene, calculating the distance between the shooting subject and the electronic equipment, and determining a second camera matched with the distance from the plurality of cameras as a target camera;

and shooting and previewing based on the preview image corresponding to the target camera.

In a second aspect, an embodiment of the present application provides a photographing apparatus, where the apparatus is applied to an electronic device, the electronic device includes a plurality of cameras, and the apparatus includes:

the acquisition module is used for acquiring multi-frame preview images of a shooting scene through the plurality of cameras after entering a shooting preview mode;

the detection module is used for detecting whether a shooting subject exists in the shooting scene;

the calling module is used for taking a first camera in the plurality of cameras as a target camera if no shooting subject exists in the shooting scene;

and the preview module is used for shooting and previewing the preview image corresponding to the target camera.

In a third aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute a photographing method as provided in any embodiment of the present application.

In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, where the memory has a computer program, and the processor is configured to execute the photographing method provided in any embodiment of the present application by calling the computer program.

In a fifth aspect, an embodiment of the present application provides an electronic device, including:

the system comprises a plurality of cameras, a shooting preview module and a display module, wherein the cameras are used for acquiring multi-frame preview images of a shooting scene through the cameras after entering the shooting preview mode;

a memory for storing a computer program;

the processor is electrically connected with the first camera, the second camera and the memory respectively, and is used for executing the following steps by calling the computer program:

detecting whether a shooting subject exists in the shooting scene;

According to the scheme provided by the embodiment of the application, after the electronic equipment enters the shooting preview mode, shooting scenes through the multiple cameras of the electronic equipment, obtaining multi-frame preview images, detecting whether a shooting subject exists in the shooting scenes or not, if the shooting scene does not include the shooting subject, taking a first camera in the multiple cameras as a target camera, if the shooting subject exists, calculating the distance between the shooting subject and the electronic equipment, then determining a second camera matched with the distance from the multiple cameras as the target camera, and after the target camera is determined, shooting previews based on the preview images corresponding to the target camera, so that the shooting preview is selected to be shot according to the shooting scenes, and the shooting efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a circuit board in the electronic device shown in fig. 1.

Fig. 3 is a rear view of the electronic device shown in fig. 1.

Fig. 4 is a schematic structural diagram of the camera module in the electronic device shown in fig. 3.

Fig. 5 is a first flowchart of a photographing method according to an embodiment of the present application.

Fig. 6 is a second flowchart of the photographing method according to the embodiment of the present application.

Fig. 7 is a schematic structural diagram of a photographing device according to an embodiment of the present application.

Fig. 8 is a schematic view of a first frame structure of an electronic device according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of a second frame of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the application firstly provides a photographing method, and the photographing method is applied to electronic equipment. Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device to which a photographing method is applied. Among other things, the electronic device 20 may be a computing device such as a laptop computer, a computer monitor containing an embedded computer, a tablet, a cellular telephone, a media player, or other handheld or portable electronic device, a smaller device (such as a wristwatch device, a hanging device, a headset or earpiece device, a device embedded in eyeglasses, or other device worn on the head of a user, or other wearable or miniature device), a television, a computer display not containing an embedded computer, a gaming device, a navigation device, an embedded system (such as a system in which an electronic device with a display is installed in a kiosk or automobile), a device that implements the functionality of two or more of these devices, or other electronic devices. In the exemplary configuration of fig. 1, the electronic device 20 is a portable device, such as a cellular telephone, media player, tablet, or other portable computing device. Other configurations may be used for the electronic device 20, if desired. It should be noted that the structure shown in fig. 1 is merely exemplary.

As shown in fig. 1, the electronic device 20 includes a housing such as housing 200. The housing 200 may be formed from plastic, glass, ceramic, fiber composite, metal (e.g., stainless steel, aluminum, etc.), other suitable materials, or a combination of any two or more of these materials. The housing body 200 may be formed using a one-piece configuration in which some or all of the housing body 200 is machined or molded as a single structure, or may be formed using multiple structures (e.g., an inner frame structure, one or more structures that form an outer shell surface, etc.).

The housing 200 may serve as a carrier for the electronic device 20 and may carry components of the electronic device 20.

As shown in fig. 1, the electronic device 20 may also include a circuit board such as circuit board 400. The circuit board 400 may serve as a main board of the electronic device 20, and the circuit board 400 may integrate a processor, a memory, a camera, and the like. The memory of the electronic device 20 may store various computer programs and data of the electronic device 20. The processor of the electronic device 20 may be a control center of the electronic device 20, may connect various parts of the entire electronic device 20 by using various interfaces and lines, and may perform various functions of the electronic device 20 and process data by running or calling a computer program stored in the memory and calling data stored in the memory, such as the processor may control a camera of the electronic device 20 to take a picture, etc.

As shown in fig. 2, fig. 2 is a schematic structural diagram of a circuit board in the electronic device shown in fig. 1. A plurality of functional devices of the electronic apparatus 20, such as cameras, sensors, etc., may be integrated on the circuit board 400. In some embodiments, one or more mounting areas, such as mounting area 440, may be provided on circuit board 400. The mounting area 440 may mount various functional devices of the electronic device 20, such as a camera. In some embodiments, one or more receiving spaces such as receiving space 420 may also be provided on circuit board 400. The receiving space 420 may receive a functional device of the electronic apparatus 20, or the receiving space 420 may avoid a functional device of the electronic apparatus 20, such as a camera.

The receiving space 420 may be a notch or a groove formed at an edge of the circuit board 400. The receiving space 420 may also be a through hole or a hollow hole penetrating through the circuit board 400 in the thickness direction of the circuit board 400. Wherein the mounting region 440 may route the circuit board 400.

It is understood that the mounting region 440 and the receiving space 420 on the electronic device 400 may be disposed spaced apart from each other. It should be noted that one of the mounting areas 440 and one of the receiving spaces 420 on the electronic device 400 may be disposed adjacent to each other.

Referring to fig. 3, fig. 3 is a rear view of the electronic device shown in fig. 1. The electronic device 20 may also include a camera module 40. The camera module 40 may be disposed on the housing 200 of the electronic device 20, such as the camera module 40 may be disposed at a rear cover position of the housing 200, and the camera module 40 may serve as a rear camera of the electronic device 20. The camera module 40 may also be a front camera of the electronic device 20, and the camera module 40 may be disposed at a display position of the electronic device 20.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a camera module in the electronic device shown in fig. 3. The camera module 40 may include at least two cameras. At least one camera is disposed on the circuit board 400, such as at least one camera may be disposed on the mounting region 440 of the circuit board 400. At least one camera may be disposed in the receiving space 420 opened on the circuit board 400.

It will be appreciated that, in general, the function of each of the plurality of cameras of the camera module 40 will vary, as will the size of each camera. Such as some cameras in the camera module 40 having a higher height and some cameras having a lower height. The embodiment of the application can set the camera with higher height in the accommodating space 420 opened on the circuit board 400, and can set the camera with lower height in the mounting area 440 on the circuit board 400. The thickness of the circuit board 400 and the camera module 40 stacked on each other can be reduced as compared with mounting all the cameras on the circuit board 400. And the circuit arrangement on the circuit board 400 can be increased compared with the case that all the cameras are installed in the accommodating space 420 formed in the circuit board 400.

It should be noted that, under the condition that the electronic device has more and more functions and more internal components, the space of the circuit board 400 is more and more limited. This application not only can not additionally complete machine electronic equipment 20's thickness on the whole, but also can increase the circuit board size to arrange the circuit, realize more functions and the control of circuit board 400.

Illustratively, camera module 40 may include an a camera 42, a B camera 44, a C camera 46, and a D camera 48. Wherein the height of at least one of the a camera 42 and the D camera 48 is greater than the height of the B camera 44 and the C camera 46. Such as: the height of the a camera 42 is greater than the height of the B camera 44 and the C camera 46, and the height of the D camera 48 is substantially equal to the height of the B camera 44 or the C camera 46. For another example: the height of both the a camera 42 and the D camera 48 is greater than the height of the B camera 44 and the C camera 46. Here, the heights of the B camera 44 and the C camera 46 are substantially equal to each other. The embodiment of the application can arrange the camera A42 and the camera D48 in the accommodating space 420 formed in the circuit board 400, and can arrange the camera B44 and the camera C46 in the mounting area 46 of the circuit board 400. This is advantageous for the arrangement of the overall height of the camera module 40, and the thickness of the electronic device 20 can be reduced to a greater extent.

Based on the structure of the electronic device, the photographing method provided in the embodiment of the present application is described. Referring to fig. 5, fig. 5 is a first flowchart of a photographing method according to an embodiment of the present disclosure. The specific flow of the photographing method provided by the embodiment of the application can be as follows:

101. after entering a shooting preview mode, acquiring multi-frame preview images of a shooting scene through a plurality of cameras.

It should be noted that, in the embodiment of the present application, the electronic device is provided with at least two cameras. For example, the electronic device includes two cameras, three cameras, four cameras, and the like. Taking four cameras as an example, referring to fig. 4, the electronic device includes an a camera 42, a B camera 44, a C camera 46, and a D camera 48. Wherein, in some embodiments, the a camera 42 may be a standard camera and the B camera 44 may be an ultra wide angle camera; c camera 46 may be a tele camera; d-camera 48 may be a macro camera.

In some embodiments, the a camera 42 may be used as a main camera of the electronic device, and the other three cameras may be used as auxiliary cameras. When a subject is not captured in a captured scene, for example, a scene such as a landscape or a long-range scene is captured, the main camera is used to capture the image. When the shooting subject exists in the shooting scene, one or more cameras are selected from the three auxiliary cameras for shooting.

In one embodiment, the primary camera (A camera 42) is used as the first camera and the B camera 44 and the D camera 48 are used as the second camera. Alternatively, in another embodiment, the C camera 46 may be the first camera and the B camera 44 and the D camera 48 may be the second camera. Alternatively, in other embodiments, the first camera and the second camera may be selected by the user from a plurality of cameras as desired.

It should be noted that the auxiliary camera of the electronic device is not limited to this, and may be configured as other types of cameras as needed, or a greater or lesser number of auxiliary cameras as needed.

The scheme of the embodiment can be applied to scenes such as shooting preview, image shooting and video recording. For example, when the electronic device detects that the cameras are started to shoot, the a camera 42, the B camera 44 and the D camera 48 are simultaneously started to perform exposure operation, and a multi-frame preview image of the shooting scene is acquired, and it is understood that the preview image corresponds to a plurality of cameras one by one. For example, the preview image P1 is acquired by the a camera 42, the preview image P2 is acquired by the B camera 44, and the preview image P3 is acquired by the D camera 48.

For example, taking four cameras shown in fig. 4 as an example, the electronic device is configured as follows by default: the camera started to the foreground operation when the shooting preview mode is started is as follows: an a camera 42, a B camera 44, and a D camera 48.

When the electronic equipment starts the camera to shoot according to the user operation, the scene aligned with the camera is the shooting scene. For example, a user opens a camera application on the electronic device, and aims a camera at an object to take a picture or record a video, so that a scene containing the object and aimed by the camera of the electronic device is a shooting scene. Therefore, it can be understood that the shooting scene is not necessarily a fixed specific scene, but a scene that changes as the camera moves.

102. Whether a shooting subject exists in a shooting scene is detected.

After the plurality of cameras are started, whether the shooting subject exists in the shooting scene is detected. The detection method may be various, and some of the detection methods are described by taking three of the detection methods as examples, but the scheme of the embodiment of the present application is not limited to this.

In the first mode, the electronic device further includes an infrared sensor disposed adjacent to the plurality of cameras. The "detecting whether there is a photographic subject in the photographic scene" may include: carrying out distance detection on a shooting scene through an infrared sensor, and acquiring distance data detected by the infrared sensor; and judging whether a shooting object with the distance smaller than a first preset distance exists in the shooting scene according to the distance data, wherein if yes, the shooting subject is judged to exist in the shooting scene, and if not, the shooting subject is judged not to exist in the shooting scene.

In this embodiment, an infrared sensor is provided on the electronic device, for example, at a position adjacent to the plurality of cameras on the back panel of the electronic device. After the electronic equipment enters a shooting preview mode, or when the camera is started, the infrared sensor is started to detect the distance between a shooting object and the electronic equipment in a shooting scene. The infrared sensor detects the distance between the obstacle and the electronic device by emitting infrared light and receiving the infrared light reflected by the obstacle.

It can be understood that the shooting scene is generally a three-dimensional scene, different shooting objects in the scene have a front-back hierarchical relationship in a direction perpendicular to the mirror surface of the camera, and when a shooting subject exists in the shooting scene, the shooting subject is generally closer to the electronic device. Therefore, whether a subject is close to the electronic device in the shooting scene or not can be detected, if yes, the shooting subject is considered to be in the current shooting scene, and the shooting subject is taken as the shooting subject.

For example, the current shooting scene is: the person K stands in front of the building and is at a distance from the building. At this time, when the infrared sensor is used to detect the distance between the imaging subject (person K, building) and the electronic device in the imaging scene, the distance between the building and the electronic device can be detected. If the distance between the person K and the electronic equipment is smaller than the first preset distance, it is judged that a shooting subject exists in the shooting scene, and meanwhile, it can be judged that the person K is the shooting subject.

And secondly, calculating a depth map of the shooting scene through two images shot by the two cameras, and judging whether a shooting object with the distance to the electronic equipment smaller than a first preset distance exists in the shooting scene according to the depth map, wherein if the shooting object exists, a shooting subject exists in the shooting scene, and if the shooting object does not exist, no shooting subject exists in the shooting scene.

In the third mode, the preview image is recognized through a pre-trained image recognition model to detect whether a subject such as a person, an animal or some other specific object exists in the preview image.

103. And if the shooting subject is not in the shooting scene, taking a first camera in the plurality of cameras as a target camera.

If it is detected that the shooting scene is not provided with the shooting subject in the above manner, the first camera can be used as a target camera, that is, the main camera is called to preview and shoot the shooting scene. Generally, a shooting scene without a subject is generally a distant shot, and the first camera is a standard camera, which is a lens having a focal length of between 40 and 55 mm. The picture observed from the first camera is very close to the picture seen by human eyes, and a relatively realistic image can be shot through the first camera when a long-range scene without a specific shooting subject is shot.

104. If the shooting scene has the shooting main body, calculating the distance between the shooting main body and the electronic equipment, and determining a second camera matched with the distance from the plurality of cameras as a target camera.

And if the shooting subject is detected in the shooting scene in any one of the modes, shooting by using one or more cameras in the second cameras. In this embodiment, the second camera that is matched can be selected as the target camera to shoot according to the distance between the shooting subject and the electronic device.

In some embodiments, the second camera includes a macro camera and a wide-angle camera. "determining a second camera matching the distance from the plurality of cameras as a target camera" may include: if the distance is greater than a second preset distance, taking the wide-angle camera as a second camera matched with the distance, wherein the second preset distance is smaller than the first preset distance; and if the distance is not greater than the second preset distance, taking the macro camera as a second camera matched with the distance.

In this embodiment, the target camera is selected from the plurality of second cameras according to the distance between the subject and the electronic apparatus. For example, when the distance between the photographing body and the electronic device is less than the second preset distance, in order to achieve accurate focusing of the photographing body, a macro camera may be used as the target camera for photographing, and when the distance between the photographing body and the electronic device is greater than or equal to the second preset distance and less than the first preset distance, a wide camera may be used as the target camera for photographing. The focal length of the wide-angle camera is shorter than that of the first camera, and the wide-angle camera can be a common wide-angle camera, for example, the focal length is 38-24 mm, and the visual angle is 60-84 degrees. The wide-angle camera can shoot a picture with a short distance and a large scene, and the shot picture is much larger than that seen by human eyes; the picture of the wide-angle lens emphasizes the foreground and highlights the far-near contrast, namely, near objects in the picture are larger, far objects are smaller, and the wide-angle lens has a strong perspective effect.

Or the wide-angle camera can also be a fixed-focus wide-angle camera or an ultra-wide-angle camera, for example, a wide-angle camera with a focal length of 20-13 mm and a viewing angle of 94-118 degrees.

For example, the first predetermined distance may range from 3 meters to 5 meters, for example, the first predetermined distance is 3 meters. The second predetermined distance may range from 4 to 10 cm, for example, the first predetermined distance is 5 cm. When the shooting subject is detected and the distance between the shooting subject and the electronic equipment is less than 5 cm, the shooting subject is very close to the electronic equipment, and the macro camera is used as a target camera to shoot a clear shooting subject. When the shooting subject is detected and the distance between the shooting subject and the electronic equipment is more than 5 cm, in order to highlight the shooting subject in the shot image, a wide-angle camera can be adopted as a target camera for shooting.

105. And shooting and previewing based on the preview image corresponding to the target camera.

It should be noted that, in the embodiment of the present application, after entering the shooting preview mode, the electronic device simultaneously starts the first camera and the plurality of second cameras, and after starting the cameras, the electronic device exposes a shooting scene to obtain a preview image. Therefore, after the electronic equipment detects the shooting subject, automatically selects the target camera according to the condition of the shooting subject and switches the target camera to the foreground operation, the latest frame of preview image shot by the target camera can be immediately acquired and displayed in the view frame. Moreover, even if the user does not like the camera automatically selected by the electronic equipment, other cameras can be reselected according to needs, and the latest frame of preview image shot by the newly selected camera can be immediately acquired for shooting preview after the camera is switched, so that zero-delay calling and switching of the camera are realized.

It can be understood that after shooting preview is performed based on the preview image corresponding to the target camera, when a shooting instruction or a video recording instruction is received, the target camera is used for shooting a shooting scene to obtain a target image.

As can be seen from the above, according to the photographing method provided in the embodiment of the application, after the electronic device enters the photographing preview mode, a photographing scene is photographed through a plurality of cameras of the electronic device, a plurality of frames of preview images are obtained, and then whether a photographing subject exists in the photographing scene is detected, if no photographing subject exists in the photographing scene, a first camera of the plurality of cameras is used as a target camera, if a photographing subject exists, a distance between the photographing subject and the electronic device is calculated, then a second camera matched with the distance is determined from the plurality of cameras as a target camera, after the target camera is determined, photographing preview is performed based on a preview image corresponding to the target camera, so that detection according to the photographing scene is realized, a proper camera is selected for photographing preview, and photographing efficiency is improved.

Referring to fig. 6, fig. 6 is a second flowchart of a photographing method according to an embodiment of the present disclosure.

In some embodiments, detecting whether there is a photographic subject in a photographic scene includes:

1021. acquiring a first image and a second image from a plurality of frames of preview images;

1022. calculating a depth map of the shooting scene according to the first image and the second image;

1023. and detecting whether a shooting object with a distance smaller than a first preset distance exists in the shooting scene or not based on the depth map, wherein if yes, the shooting subject is judged to exist in the shooting scene, and if not, the shooting subject is judged not to exist in the shooting scene.

Any two frames of images can be acquired from the multiple frames of images, for example, a preview image captured by the a camera 42 is acquired and recorded as a first image, and a preview image captured by the B camera 44 is acquired and recorded as a second image. After the first image and the second image are obtained, a Depth of Field (DOF) map of a shooting scene is calculated based on a double-camera DOF calculation method, wherein the DOF generally refers to the front-back distance range of a shot object measured by the camera capable of obtaining clear images, and the Depth of Field is shallower when a shooting object is closer. In this embodiment, the depth map includes a depth corresponding to each pixel in the shooting scene. Calculating the depth of field information of the shooting scene according to the first image and the second image, wherein the depth of field information comprises the distance from each pixel point in the first image to the first camera; and generating a depth map of the shooting scene according to the distance from each pixel point in the first image to the first camera.

In some embodiments, different colors are used to represent the difference in distance of the pixel point from the first camera. For example, a relatively light color representation may be used when the distance of the pixel from the electronic device is small, and a relatively dark color representation may be used when the distance of the pixel from the electronic device is large.

After the electronic equipment acquires the depth map of the shooting scene, the depth map is detected, whether a shooting object with the distance between the shooting object and the electronic equipment being smaller than a first preset distance exists in the shooting scene or not is judged, if yes, a shooting subject exists in the shooting scene, and if not, no shooting subject exists in the shooting scene.

In some embodiments, whether a shooting object with a distance to the electronic equipment smaller than a first preset distance exists in the shooting scene is detected based on the depth map. If not, judging that no shooting subject exists in the shooting scene; if the area ratio is smaller than the preset ratio value, it is judged that no shooting subject exists in the shooting scene, and if the area ratio is not smaller than the preset ratio value, it is judged that a shooting subject exists in the shooting scene. The ratio of the number of pixels with the distance between the electronic device and the electronic device being smaller than the first preset distance to the total number of pixels in the preview image can be used as the area proportion of the area in the preview image corresponding to the shooting object with the distance between the electronic device and the electronic device being smaller than the first preset distance.

In some embodiments, the distance from the shooting subject to the electronic device may also be obtained according to the depth map, and since the depth map includes the distance from each pixel point in the preview image to the electronic device, after the subject region corresponding to the shooting subject is determined, the distance from the shooting subject to the electronic device may be determined according to the distance from each pixel point in the subject region to the electronic device, for example, a median value or an average value of the distances from all pixel points in the subject region to the electronic device is used as the distance from the shooting subject to the electronic device.

Therefore, according to the photographing method provided by the embodiment of the application, the multi-frame images of the photographing scene are obtained through the plurality of cameras, the depth of field map of the photographing scene is obtained according to the multi-frame images, the distance between the photographing main body and the electronic equipment is identified according to the depth of field map, the target camera is automatically selected from the plurality of cameras according to the distance for photographing, a user does not need to manually select the camera, and the photographing efficiency is improved.

In one embodiment, a photographing apparatus is also provided. Referring to fig. 7, fig. 7 is a schematic structural diagram of a photographing device 300 according to an embodiment of the present application. The photographing apparatus 300 is applied to an electronic device, and the photographing apparatus 300 includes an obtaining module 301, a detecting module 302, a calling module 303, and a previewing module 304, as follows:

an obtaining module 301, configured to obtain, through the multiple cameras, multiple frames of preview images of a shooting scene after entering a shooting preview mode;

a detection module 302, configured to detect whether a shooting subject exists in the shooting scene;

a calling module 303, configured to, if there is no shooting subject in the shooting scene, take a first camera of the multiple cameras as a target camera;

and the preview module 304 is configured to perform shooting preview based on the preview image corresponding to the target camera.

In some embodiments, the electronic device further comprises an infrared sensor disposed adjacent to the plurality of cameras; the detection module 302 is further configured to:

carrying out distance detection on a shooting scene through the infrared sensor, and acquiring distance data detected by the infrared sensor;

and judging whether a shooting object with the distance smaller than a first preset distance exists in the shooting scene according to the distance data, wherein if yes, a shooting subject is judged to exist in the shooting scene, and if not, no shooting subject is judged to exist in the shooting scene.

In some embodiments, the detection module 302 is further configured to:

acquiring a first image and a second image from the plurality of frames of preview images;

calculating a depth map of the shooting scene according to the first image and the second image;

and detecting whether a shooting object with a distance smaller than a first preset distance exists in the shooting scene or not based on the depth map, wherein if yes, a shooting subject exists in the shooting scene, and if not, no shooting subject exists in the shooting scene.

In some embodiments, the detection module 302 is further configured to:

calculating depth of field information of the shooting scene according to the first image and the second image, wherein the depth of field information comprises the distance from each pixel point in the first image to the first camera;

and generating a depth map of the shooting scene according to the distance from each pixel point in the first image to the first camera.

In some embodiments, the second camera comprises a macro camera and a wide-angle camera; the calling module 303 is further configured to:

if the distance is greater than a second preset distance, taking the wide-angle camera as a second camera matched with the distance, wherein the second preset distance is smaller than the first preset distance;

and if the distance is not greater than the second preset distance, taking the macro camera as a second camera matched with the distance.

In some embodiments, the first camera is a standard camera.

In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.

It should be noted that the photographing device provided in the embodiment of the present application and the photographing method in the foregoing embodiment belong to the same concept, and any method provided in the photographing method embodiment may be run on the photographing device, and a specific implementation process thereof is described in the photographing method embodiment, and is not described herein again.

As can be seen from the above, in the photographing apparatus provided in this embodiment of the application, after the electronic device enters the photographing preview mode, the obtaining module 301 takes a photograph of a photographed scene through a plurality of cameras of the electronic device to obtain a plurality of frames of preview images, the detecting module 302 detects whether there is a photographic subject in the photographed scene, if there is no photographic subject in the photographed scene, the calling module 303 takes a first camera of the plurality of cameras as a target camera, if there is a photographic subject, the calling module 303 calculates a distance between the photographic subject and the electronic device, and then determines a second camera matching the distance from the plurality of cameras as a target camera, after the target camera is determined, the preview module 304 takes a preview image based on a preview image corresponding to the target camera, so that detection according to the photographed scene is realized to select an appropriate camera for photographing preview, the shooting efficiency is improved.

The embodiment of the application also provides the electronic equipment. The electronic device can be a smart phone, a tablet computer and the like. Referring to fig. 8, fig. 8 is a schematic view of a first frame structure of an electronic device according to an embodiment of the present disclosure. The electronic device 800 includes a processor 801, a memory 802, and a camera assembly 811. The camera assembly 811 includes a plurality of cameras, and the processor 801 is electrically connected to the memory 802 and the camera assembly 811, respectively. The multiple cameras are used for acquiring multiple frames of preview images of a shooting scene through the multiple cameras after the electronic device 800 enters a shooting preview mode, and please refer to the above contents specifically, which is not described herein again.

The processor 801 is a control center of the electronic device 800, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or calling a computer program stored in the memory 802 and calling data stored in the memory 802, thereby performing overall monitoring of the electronic device.

The memory 802 may be used to store computer programs and data. The memory 802 stores computer programs comprising instructions executable in the processor. The computer program may constitute various functional modules. The processor 801 executes various functional applications and data processing by calling a computer program stored in the memory 802.

In this embodiment, the processor 801 in the electronic device 800 loads instructions corresponding to one or more processes of the computer program into the memory 802, and the processor 801 executes the computer program stored in the memory 802 according to the following steps, so as to implement various functions:

detecting whether a shooting subject exists in the shooting scene;

In some embodiments, please refer to fig. 9, and fig. 9 is a schematic diagram of a second frame structure of an electronic device according to an embodiment of the present disclosure. The electronic device 800 further comprises: a radio frequency circuit 803, a display 804, a control circuit 805, an input unit 806, an audio circuit 807, a sensor 808, and a power supply 809. The processor 801 is electrically connected to the rf circuit 803, the display 804, the control circuit 805, the input unit 806, the audio circuit 807, the sensor 808, and the power supply 809.

The radio frequency circuit 803 is used for transceiving radio frequency signals to communicate with a network device or other electronic devices through wireless communication.

The display screen 804 may be used to display information entered by or provided to the user as well as various graphical user interfaces of the electronic device, which may be comprised of images, text, icons, video, and any combination thereof.

The control circuit 805 is electrically connected to the display 804, and is configured to control the display 804 to display information.

The input unit 806 may be used to receive input numbers, character information, or user characteristic information (e.g., fingerprint), and generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control. The input unit 806 may include a fingerprint recognition module.

The audio circuit 807 may provide an audio interface between the user and the electronic device through a speaker, microphone. The audio circuit 807 includes a microphone, among other things. The microphone is electrically connected to the processor 801. The microphone is used for receiving voice information input by a user.

The sensor 808 is used to collect external environmental information. The sensors 808 may include one or more of ambient light sensors, acceleration sensors, gyroscopes, and the like.

The power supply 809 is used to power the various components of the electronic device 800. In some embodiments, the power supply 809 may be logically connected to the processor 801 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

Although not shown in fig. 9, the electronic device 800 may further include a camera, a bluetooth module, and the like, which are not described in detail herein.

detecting whether a shooting subject exists in the shooting scene;

In some embodiments, the electronic device further comprises an infrared sensor disposed adjacent to the plurality of cameras; when detecting whether there is a subject in the shooting scene, the processor 801 executes:

In some embodiments, when detecting whether there is a photographic subject in the photographic scene, the processor 801 performs:

In some embodiments, the first image is captured by the first camera; when calculating the depth map of the shooting scene according to the first image and the second image, the processor 801 executes:

In some embodiments, the second camera comprises a macro camera and a wide-angle camera; when a second camera matching the distance is determined as a target camera from the plurality of cameras, the processor 801 executes:

In some embodiments, the first camera is a standard camera.

Therefore, the embodiment of the application provides an electronic device, after the electronic device enters a shooting preview mode, a shooting scene is shot through a plurality of cameras of the electronic device, multi-frame preview images are obtained, whether a shooting subject exists in the shooting scene is detected, if the shooting scene does not exist, a first camera of the plurality of cameras is used as a target camera, if the shooting subject exists, a distance between the shooting subject and the electronic device is calculated, a second camera matched with the distance is determined from the plurality of cameras and used as a target camera, after the target camera is determined, shooting preview is performed based on a preview image corresponding to the target camera, detection of the shooting scene is achieved, a proper camera is selected for preview shooting, and shooting efficiency is improved.

An embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, and when the computer program runs on a computer, the computer executes the photographing method according to any one of the above embodiments.

It should be noted that, all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, which may include, but is not limited to: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.

Furthermore, the terms "first", "second", and "third", etc. in this application are used to distinguish different objects, and are not used to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but rather, some embodiments may include other steps or modules not listed or inherent to such process, method, article, or apparatus.

The photographing method, the photographing device, the storage medium and the electronic device provided by the embodiment of the application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A photographing method is applied to an electronic device, the electronic device comprises a plurality of cameras, and the method comprises the following steps:

detecting whether a shooting subject exists in the shooting scene, wherein the shooting subject is a shooting object of which the distance between the shooting subject and the electronic equipment is smaller than a first preset distance;

if the shooting scene does not have a shooting subject, taking a first camera in the plurality of cameras as a target camera, wherein the first camera is a standard camera;

if a shooting subject exists in the shooting scene, calculating the distance between the shooting subject and the electronic equipment, and determining a second camera matched with the distance from the plurality of cameras as a target camera, wherein the second camera comprises a macro camera and a wide-angle camera; the determining of the second camera matched with the distance from the plurality of cameras as a target camera comprises: if the distance is greater than a second preset distance, taking the wide-angle camera as a second camera matched with the distance, wherein the second preset distance is smaller than the first preset distance; if the distance is not greater than the second preset distance, taking the macro camera as a second camera matched with the distance;

shooting preview based on the preview image corresponding to the target camera, including: and displaying the preview image corresponding to the target camera in a viewing frame.

2. The photographing method of claim 1, wherein the electronic device further comprises an infrared sensor disposed adjacent to the plurality of cameras; the detecting whether there is a shooting subject in the shooting scene includes:

3. The photographing method of claim 1, wherein the detecting whether there is a photographic subject in the photographic scene comprises:

4. The photographing method according to claim 3, wherein the first image is taken by the first camera; the calculating the depth map of the shooting scene according to the first image and the second image comprises:

5. The photographing device is applied to electronic equipment, the electronic equipment comprises a plurality of cameras, and the photographing device comprises:

the detection module is used for detecting whether a shooting subject exists in the shooting scene, wherein whether a shooting object with the distance to the electronic equipment smaller than a first preset distance exists in the shooting scene is detected, if yes, the shooting subject is judged to exist in the shooting scene, and if not, the shooting subject is judged not to exist in the shooting scene;

the calling module is used for taking a first camera in the plurality of cameras as a target camera if no shooting subject exists in the shooting scene, and the first camera is a standard camera;

if a shooting subject exists in the shooting scene, calculating the distance between the shooting subject and the electronic equipment, and determining a second camera matched with the distance from the plurality of cameras as a target camera, wherein the second camera comprises a macro camera and a wide-angle camera;

the calling module is further configured to use the wide-angle camera as a second camera matched with the distance if the distance is greater than a second preset distance, where the second preset distance is smaller than the first preset distance; if the distance is not greater than the second preset distance, taking the macro camera as a second camera matched with the distance;

the preview module is used for shooting and previewing the preview image corresponding to the target camera;

the preview module is further configured to display the preview image corresponding to the target camera in a view frame.

6. A computer-readable storage medium on which a computer program is stored, which, when run on a computer, causes the computer to execute the photographing method according to any one of claims 1 to 4.

7. An electronic device comprising a processor and a memory, wherein the memory stores a computer program, and wherein the electronic device further comprises a plurality of cameras, and wherein the processor is configured to execute the photographing method according to any one of claims 1 to 4 by calling the computer program.

8. An electronic device, comprising:

a memory for storing a computer program;

detecting whether a shooting subject exists in the shooting scene, wherein whether a shooting object with the distance to the electronic equipment smaller than a first preset distance exists in the shooting scene is detected, if so, judging that the shooting subject exists in the shooting scene, and if not, judging that the shooting subject does not exist in the shooting scene;