WO2017008353A1

WO2017008353A1 - Capturing method and user terminal

Info

Publication number: WO2017008353A1
Application number: PCT/CN2015/085884
Authority: WO
Inventors: 杨杰
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-07-10
Filing date: 2015-07-31
Publication date: 2017-01-19
Also published as: CN105578026A; CN105578026B

Abstract

A capturing method and user terminal. The method comprises: upon receiving an auto-focus and capture instruction, responding to the auto-focus and capture instruction, acquiring a first preview image via a first camera, and acquiring a second preview image via a second camera (S101); calculating, according to the first preview image and second preview image, an object distance to a user terminal from a captured object contained in the first preview image and second preview image (S102); generating, according to the calculated object distance, at least one depth-of-field layer, wherein the number of captured objects contained in the depth-of-field layer is one object or a plurality of objects, and the plurality of captured objects each have the same object distance to the user terminal (S103); acquiring, according to a predetermined corresponding relationship between the object distance and a focus position, a target focus position corresponding to the depth-of-field layer (S104); and focusing, via the first camera and/or the second camera, with respect to the target focus position and capturing a picture (S105). Therefore, the capturing method and user terminal can automatically configure a focus position and perform focusing and capturing.

Description

Shooting method and user terminal

The present application claims priority to Chinese Patent Application No. 201510404513.3, the entire disclosure of which is incorporated herein by reference. .

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a photographing method and a user terminal.

Background technique

The camera mode that focuses on the camera first is a very playable camera mode, which is popular among users. After taking a picture, the focus is to use a plurality of photos with different focus positions to synthesize a picture in a special format. When the user clicks on the image, the image will display different images of the focus position along with the user's click position, and can be done wherever it is, and there is clarity.

However, in practice, it is found that in the current photographing mode in which the photographing is performed first, since it is necessary to take a plurality of photographs with different in-focus positions, the user needs to manually set the in-focus position, so that the user terminal performs focus shooting on the in-focus position; The focus position is automatically set for focus shooting.

Summary of the invention

Embodiments of the present invention disclose a photographing method and a user terminal, which are capable of automatically setting a focus position and performing focus photographing.

The embodiment of the invention discloses a shooting method, and the method comprises:

Receiving the autofocus photographing instruction, acquiring the first preview image by the first camera and acquiring the second preview image by the second camera in response to the autofocus photographing instruction;

Calculating, according to the first preview image and the second preview image, an object distance of a subject included in the first preview image and the second preview image from a user terminal;

Generating at least one depth of field layer according to the calculated object distance, wherein the depth of field layer includes one of the objects or a plurality of the objects having the same object distance from the user terminal;

Acquiring a target focus position corresponding to the depth of field layer according to a preset correspondence between the object distance and the focus position;

The target focus position is focused and a photograph is taken by the first camera and/or the second camera.

The embodiment of the invention further discloses a user terminal, where the user terminal comprises:

The acquiring module is configured to: when the auto focus shooting instruction is received, acquire the first preview image by using the first camera, and acquire the second preview image by using the second camera in response to the auto focus shooting instruction;

a calculation module, configured to calculate, according to the first preview image and the second preview image, an object distance of a subject included in the first preview image and the second preview image from a user terminal;

a generating module, configured to generate at least one depth of field layer according to the calculated object distance, where the depth of field layer includes one of the subject or a plurality of the objects having the same object distance from the user terminal;

The acquiring module is further configured to acquire a target focus position corresponding to the depth of field layer according to a preset correspondence between the object distance and the focus position;

a focusing module, configured to focus the target focus position and take a photo by the first camera and/or the second camera.

In the embodiment of the present invention, when the user terminal receives the auto focus shooting instruction, the user terminal acquires the first preview image through the first camera and acquires the second preview image through the second camera in response to the auto focus shooting instruction; Calculating, according to the first preview image and the second preview image, an object distance of the subject included in the first preview image and the second preview image from the user terminal; the user terminal generates at least one depth of field layer according to the calculated object distance, the depth map The layer includes a subject of the first preview image and the second preview image or a plurality of objects having the same object distance from the user terminal; and the user terminal acquires the depth map according to the correspondence between the preset object distance and the focus position. The target focus position corresponding to the layer, and the target focus position is focused and photographed by the first camera and/or the second camera. It can be seen that the embodiment of the present invention can automatically set the focus position and perform focus shooting.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic flow chart of a photographing method disclosed in an embodiment of the present invention;

2 is a schematic flow chart of another shooting method disclosed in an embodiment of the present invention;

3 is a schematic structural diagram of a user terminal according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another user terminal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiments of the present invention disclose a photographing method and a user terminal, which are capable of automatically setting a focus position and performing focus photographing. The details are described below separately.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart diagram of a photographing method according to an embodiment of the present invention. As shown in FIG. 1, the photographing method may include the following steps.

S101. When receiving the auto focus shooting instruction, in response to the auto focus shooting instruction, the first preview image is acquired by the first camera, and the second preview image is acquired by the second camera.

In the embodiment of the present invention, when the user terminal receives the auto focus shooting instruction, the user terminal responds to the auto focus shooting instruction, acquires the first preview image through the first camera, and acquires the second preview image through the second camera. The user terminal may include, but is not limited to, a user terminal having a camera function, such as a smart phone, a tablet computer, a notebook computer, and a desktop computer. The operating system of the user terminal may include, but is not limited to, an Android operating system, an IOS operating system, a Symbian operating system, a Blackberry operating system, a Windows operating system, and the like, which are not limited by the embodiment of the present invention.

In the embodiment of the present invention, the user terminal is configured with two cameras, that is, the user terminal has a dual camera. For convenience of description, the two cameras are referred to as "first camera" and "second camera", respectively, but it is worth noting that the "first camera" and the "second camera" are for illustrative purposes only.

In the embodiment of the present invention, optionally, the user may select an auto focus mode at the user terminal before the user terminal receives the auto focus shooting instruction. After the user selects the autofocus mode, the user can input an autofocus shooting command. Optionally, the focus mode of the user terminal may include, but is not limited to, a manual focus mode and an auto focus mode. The manual focus mode requires the user to manually set the focus position, and the user terminal performs focus shooting on the focus position manually set by the user. Optionally, the user sets one or Multiple focus positions allow the user terminal to focus on shooting.

S102. Calculate, according to the first preview image and the second preview image, an object distance of the subject included in the first preview image and the second preview image from a user terminal.

In the embodiment of the present invention, the user terminal calculates the object distance of the subject included in the first preview image and the second preview image from the user terminal according to the acquired first preview image and the second preview image (ie, the subject is away from the user terminal) the distance). Specifically, the user terminal determines the subject included in the first preset image and the second preset image, and then calculates the object distance of the subject from the user terminal. Optionally, the user terminal may only determine the characters included in the first preset image and the second preset image, and calculate the object distance of the character to the user terminal, which is not limited in the embodiment of the present invention. Since the object distance from the subject to the user terminal is a well-known technique in the art, the embodiment of the present invention will not be described. For example, if the first preview image includes the character A and the character B, and the second preview image includes the character A, the user terminal will recognize that the first preview image and the second preview image include the character A and the character B, and the user The terminal will calculate the distance between the character A and the character B to the user terminal, respectively.

S103. Generate at least one depth of field layer according to the calculated object distance, where the depth of field layer includes one subject or a plurality of objects having the same object distance from the user terminal.

In the embodiment of the present invention, after the user terminal calculates the distance from the subject included in the first preview image and the second preview image to the user terminal, the user preview generates a second preview image or a second preview image according to the calculated object distance. Depth of field map. The depth map consists of at least one depth of field layer. When the user terminal generates a depth map for the first preview image according to the calculated object distance, each of the depth maps of the depth map includes a subject of the first preview image or a first preview image from the user terminal Multiple subjects with the same object distance. When the user terminal generates a depth map for the second preview image according to the calculated object distance, each of the depth maps of the depth map includes a subject of the second preview image or a second preview image from the user terminal Multiple subjects with the same object distance.

For example, if the first preview image includes the character A, the character B, and the character C, and the second preview image includes the character A, the user terminal may generate a depth map for the first preview image according to the calculated object distance. The depth map includes all of the first preview images (ie, character A, character B, and character C), and the depth map is composed of at least one depth of field layer. If the object A and the character B are different from the user terminal, and the object B and the character C are the same from the user terminal, the depth map is composed of two depth of field layers, wherein one depth map includes the character A and one The depth of field layer includes the character B and Character C.

In practice, it has been found that when the user terminal focuses on a subject and shoots, it is also possible to clearly capture a subject that is equivalent to the subject. Therefore, it is only necessary to focus once for each depth of field layer to capture all the subjects included in the depth of field layer.

S104. Acquire a target focus position corresponding to the depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.

In the embodiment of the present invention, after the user terminal generates the depth of field layer, the target focus position corresponding to the depth of field layer is acquired according to the correspondence between the preset object distance and the focus position.

Generally, cameras are generally classified into fixed focus, auto focus, optical image stabilization, array cameras, and the like. The most widely used are fixed focus and auto focus cameras. Among them, the camera that can automatically focus is usually composed of a lens, a motor, a color filter, a base, an image sensor, a motor drive chip, a circuit substrate, a connector, a capacitor, and the like.

The devices associated with embodiments of the present invention are primarily lenses and motors. The lens is used to collect light and project the scene onto the surface of the image sensor. The position of the lens directly determines the clarity of the captured image. When the lens is in the focus position corresponding to a subject, the image taken by the user terminal to capture the subject is the clearest. Among them, the motor is used to drive the lens to the focus position (ie, the focus position corresponding to the subject) to achieve focus, so that the lens projects a clear image to the image sensor.

In the embodiment of the present invention, the target focus position is the position where the camera is located when the camera captures the subject matter included in the depth of field layer.

As an optional implementation manner, the specific implementation manner in which the user terminal acquires the target focus position corresponding to the depth of field layer may include the following steps:

11) obtaining a first target depth of field layer including the character from the generated depth of field layer;

12) Acquire a target focus position corresponding to the first target depth of field layer according to a preset correspondence between the object distance and the focus position.

In this embodiment, the generated depth map may be composed of a plurality of depth of field layers. Therefore, some important depth of field layers may be screened to obtain only the focus position corresponding to the important depth of field layer, and the lens is moved to the focus position to achieve focusing.

In practical applications, the user often performs focus shooting on the character. Therefore, in this embodiment, the face recognition technology can be used to identify whether the face is included in the depth of field layer; if a depth of field layer includes a person If the user terminal determines that the depth of field layer includes a character, the user terminal acquires the depth of field layer as the first target depth of field layer.

21) acquiring, from the generated depth of field layer, a second target depth of field layer whose object distance is less than a preset distance;

22) Acquire a target focus position corresponding to the second target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.

In practical applications, the user often does not have an interest in the subject that is too far away. Therefore, in this embodiment, the user terminal can obtain the depth of field layer with the object distance less than the preset distance from the generated depth of field layer as the second target. The depth of field layer is obtained, and the target focus position corresponding to the second target depth of field layer is acquired according to the correspondence between the preset object distance and the focus position.

31) obtaining, from the generated depth of field layer, the third target depth of field layer including the number of the detected objects being greater than a preset number;

32) Acquire a target focus position corresponding to the third target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.

In practical applications, in order to save the shooting time, only the depth of field layer with more subjects can be focused, so in this embodiment, the user terminal can obtain the number of included objects from the generated depth of field layer. A depth map layer larger than the preset number is used as the third target depth map layer, and the target focus position corresponding to the third target depth map layer is acquired according to the correspondence between the preset object distance and the focus position.

S105. Focus the target focus position by the first camera and/or the second camera and take a photo.

In the embodiment of the present invention, a specific implementation manner in which the user terminal focuses on the target focus position and takes a photo through the first camera and/or the second camera is:

The user terminal moves the lens of the first camera and/or the lens of the second camera to a target focus position, and performs shooting of the picture through the first camera and/or the second camera.

In the embodiment of the present invention, when the acquired target focus position is one, the user terminal may pass the first The camera's motor moves the lens of the first camera to the target focus position to achieve focus, and performs image capture through the first camera after focusing; or when the acquired target focus position is one, the user terminal can pass the motor of the second camera The lens of the second camera is moved to the target focus position to achieve the focus, and the image is taken by the second camera after the focus is performed, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, when the acquired target focus position is multiple, the user terminal can simultaneously move the lenses of the first camera and the second camera to different target focus positions, respectively achieve focus, and pass the first camera after focusing. The picture is taken separately from the second camera until the picture corresponding to all the target focus positions is taken. For example, when there is a target focus position 1, a target focus position 2, a target focus position 3, and a target focus position 4, the user terminal can move the lens of the first camera to the target focus position 1 by the motor of the first camera to achieve focusing, And after focusing, the picture 1 is taken by the first camera; at the same time, the user terminal can move the lens of the second camera to the target focus position 2 through the motor of the second camera to achieve focusing, and take a picture through the second camera after focusing 2 . After the first camera captures the picture 1, the user terminal continues to move the lens of the first camera to the target focus position 3 through the motor of the first camera to achieve focusing, and after shooting, the picture 3 is taken by the first camera; After the camera takes the picture 2, the user terminal continues to move the lens of the second camera to the target focus position 4 through the motor of the second camera to achieve focusing, and takes the picture 4 through the second camera after focusing. When the acquired target focus position is multiple, this method can improve the shooting rate of the picture and increase the user experience.

In the method described in FIG. 1 , when the user terminal receives the auto focus shooting instruction, the user terminal acquires the first preview image through the first camera and acquires the second preview image through the second camera in response to the auto focus shooting instruction; The user terminal calculates an object distance of the subject included in the first preview image and the second preview image from the user terminal according to the first preview image and the second preview image; the user terminal generates at least one depth of field layer according to the calculated object distance, The depth of field layer includes one subject of the first preview image and the second preview image or a plurality of objects having the same object distance from the user terminal; the user terminal acquires according to the correspondence between the preset object distance and the focus position. The target focus position corresponding to the depth of field layer, and the target focus position is focused and photographed by the first camera and/or the second camera. It can be seen that, by using the embodiment of the invention, the focus position can be automatically set and the focus shooting can be performed, thereby avoiding the user manually setting the focus position and improving the user experience.

Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of a photographing method according to an embodiment of the present invention. As shown in FIG. 2, the photographing method may include the following steps.

S201. The user terminal receives a camera startup command.

In the embodiment of the present invention, when the user desires to shoot, the camera startup instruction is sent to the user terminal; after the user terminal receives the camera startup instruction, the shooting application is started. Optionally, the user can input a camera startup command by operating a hardware button and an application icon provided on the user terminal. Optionally, the camera startup command may also be sent by using a third-party application, for example, an application, a description, and the like for publishing a picture. Specifically, the embodiment of the present invention is not limited.

S202. The user terminal starts the first camera and the second camera in response to the startup command.

In the embodiment of the present invention, after receiving the camera startup command, the user terminal will start the first camera and the second camera in response to the startup command.

S203. The user terminal determines whether the current focus mode is an auto focus mode.

In the embodiment of the present invention, after the user terminal starts the first camera and the second camera, it is determined whether the current focus mode is the auto focus mode.

In the embodiment of the present invention, the focus mode of the user terminal may include a manual focus mode and an auto focus mode. The manual focus mode requires the user to manually set the focus position, and the user terminal performs focus shooting on the focus position manually set by the user. Optionally, the user sets one or more focus positions by previewing the image, so that the user terminal performs focus shooting.

In the embodiment of the present invention, when the user terminal determines that the current focus mode is the auto focus mode, step S204 is performed. When the user terminal determines that the current focus mode is not the auto focus mode, the user terminal detects whether the user inputs a manual focus position setting command.

In the embodiment of the present invention, the user terminal having multiple focus modes will facilitate the user to better set the focus position, and provide more focus position setting modes for the user, which is beneficial to improving the user experience.

S204. If the user terminal determines that the current focus mode is the auto focus mode, when the user terminal receives the auto focus shooting instruction, in response to the auto focus shooting instruction, the first preview image is acquired by the first camera, and the second camera is acquired by the second camera. Second preview image.

S205. The user terminal calculates, according to the first preview image and the second preview image, an object distance of the subject included in the first preview image and the second preview image from a user terminal.

S206. The user terminal generates at least one depth of field layer according to the calculated object distance, where the depth of field layer includes one subject or a plurality of objects having the same object distance from the user terminal.

S207. The user terminal acquires a target focus position corresponding to the depth of field layer according to a mapping relationship between the object distance and the focus position set in advance.

S208. The user terminal focuses on the target focus position through the first camera and/or the second camera and takes a photo.

In the method described in FIG. 2, if the current focus mode is the auto focus mode, when the user terminal receives the auto focus shooting instruction, the user terminal responds to the auto focus shooting instruction to acquire the first preview image through the first camera, and Acquiring, by the second camera, the second preview image; the user terminal calculating, according to the first preview image and the second preview image, the object distance of the subject included in the first preview image and the second preview image from the user terminal; The object distance generates at least one depth of field layer, wherein the depth of field layer includes one subject of the first preview image and the second preview image or a plurality of objects having the same object distance from the user terminal; the user terminal according to the preset object The distance from the focus position is obtained, the target focus position corresponding to the depth of field layer is acquired, and the target focus position is focused and the photograph is taken by the first camera and/or the second camera. It can be seen that, by using the embodiment of the invention, the focus position can be automatically set and the focus shooting can be performed, thereby avoiding the user manually setting the focus position and improving the user experience.

Please refer to FIG. 3. FIG. 3 is a schematic structural diagram of a user terminal according to an embodiment of the present invention. The user terminal shown in FIG. 3 may include an obtaining module 301, a calculating module 302, a generating module 303, and a focusing module 304. among them:

The obtaining module 301 is configured to: when the auto focus shooting instruction is received, acquire the first preview image through the first camera and acquire the second preview image through the second camera in response to the auto focus shooting instruction.

In the embodiment of the present invention, when the user terminal receives the auto focus shooting instruction, the acquiring module 301 of the user terminal responds to the auto focus shooting instruction, acquires the first preview image through the first camera, and acquires the second preview through the second camera. image. The user terminal may include, but is not limited to, a user terminal having a camera function, such as a smart phone, a tablet computer, a notebook computer, and a desktop computer. The user The operating system of the terminal may include, but is not limited to, an Android operating system, an IOS operating system, a Symbian operating system, a Blackberry operating system, a Windows operating system, and the like, which are not limited by the embodiment of the present invention.

In the embodiment of the present invention, optionally, the user may select an auto focus mode at the user terminal before the user terminal receives the auto focus shooting instruction. After the user selects the autofocus mode, the user can input an autofocus shooting command. Optionally, the focus mode of the user terminal may include, but is not limited to, a manual focus mode and an auto focus mode. The manual focus mode requires the user to manually set the focus position, and the user terminal performs focus shooting on the focus position manually set by the user. Optionally, the user sets one or more focus positions by previewing the image, so that the user terminal performs focus shooting.

The calculating module 302 is configured to calculate an object distance of the subject included in the first preview image and the second preview image from the user terminal according to the first preview image and the second preview image.

In the embodiment of the present invention, the calculation module 302 calculates the object distance of the subject included in the first preview image and the second preview image from the user terminal according to the first preview image and the second preview image acquired by the obtaining module 301 (ie, shooting The distance from the user terminal). Specifically, the calculation module 302 will determine the subject included in the first preset image and the second preset image, and then calculate the object distance of the subject from the user terminal. Optionally, the calculation module 302 may only determine the characters included in the first preset image and the second preset image, and calculate the object distance of the character to the user terminal, which is not limited in the embodiment of the present invention. Since the object distance from the subject to the user terminal is a well-known technique in the art, the embodiment of the present invention will not be described. For example, if the first preview image includes the character A and the character B, and the second preview image includes the character A, the calculation module 302 will recognize that the first preview image and the second preview image include the character A and the character B. The calculation module 302 will calculate the distances of the person A and the person B to the user terminal, respectively.

The generating module 303 is configured to generate at least one depth of field layer according to the calculated object distance, where the depth of field layer includes one of the objects or a plurality of the objects having the same object distance from the user terminal.

In the embodiment of the present invention, after the calculating module 302 calculates the distance between the subject included in the first preview image and the second preview image to the user terminal, the generating module 303 calculates the object distance according to the calculation. A depth map is generated for the first preview image or the second preview image. The depth map consists of at least one depth of field layer. When the generating module 303 generates a depth map for the first preview image according to the calculated object distance, each of the depth maps of the depth map includes one subject of the first preview image or the user terminal including the first preview image Multiple subjects with the same object distance. When the generating module 303 generates a depth map for the second preview image according to the calculated object distance, each of the depth map layers of the depth map includes one subject of the second preview image or the user terminal including the second preview image. Multiple subjects with the same object distance.

For example, if the first preview image includes the character A, the character B, and the character C, and the second preview image includes the character A, the generating module 303 may generate a depth map for the first preview image according to the calculated object distance. The depth map includes all of the first preview images (ie, character A, character B, and character C), and the depth map is composed of at least one depth of field layer. If the object A and the character B are different from the user terminal, and the object B and the character C are the same from the user terminal, the depth map is composed of two depth of field layers, wherein one depth map includes the character A and one The depth of field layer includes character B and character C.

The acquiring module 301 is further configured to acquire a target focus position corresponding to the depth of field layer according to a preset correspondence between the object distance and the focus position.

In the embodiment of the present invention, after the generating module 303 generates the depth of field layer, the acquiring module 301 acquires the target in-focus position corresponding to the depth of field layer according to the correspondence between the preset object distance and the in-focus position.

The devices associated with embodiments of the present invention are primarily lenses and motors. The lens is used to collect light and project the scene onto the surface of the image sensor. The position of the lens directly determines the clarity of the captured image. When the lens is in a focus position corresponding to a subject, the user terminal takes a picture of the subject Like the clearest. Among them, the motor is used to drive the lens to the focus position (ie, the focus position corresponding to the subject) to achieve focus, so that the lens projects a clear image to the image sensor.

As an optional implementation manner, the obtaining module 301 is specifically configured to:

Obtaining a first target depth of field layer including a character from the generated depth of field layer;

The target focus position corresponding to the first target depth map layer is acquired according to a correspondence relationship between the object distance and the focus position set in advance.

In a practical application, the user often performs focus shooting on the character. Therefore, in this embodiment, the acquisition module 301 can identify whether the face is included in the depth of field layer by using a face recognition technology; if a depth of field layer includes a face, Then, the obtaining module 301 determines that the depth of field layer includes a character, and the acquiring module 301 acquires the depth of field layer as the first target depth of field layer.

Obtaining a second target depth of field layer whose object distance is less than a preset distance from the generated depth of field layer;

The target focus position corresponding to the second target depth map layer is acquired according to a correspondence relationship between the object distance and the focus position set in advance.

In practical applications, the user often does not have an interest in a subject that is too far away. Therefore, in this embodiment, the acquiring module 301 can obtain a depth of field layer whose object distance is less than a preset distance from the generated depth of field layer as a second. The target depth of field layer is obtained, and the target focus position corresponding to the second target depth of field layer is acquired according to the correspondence between the preset object distance and the focus position.

Obtaining, from the generated depth of field layer, the number of the included objects is greater than the preset number of the third target depth of field layer;

The target focus position corresponding to the third target depth map layer is acquired according to a correspondence relationship between the object distance and the focus position set in advance.

In practical applications, in order to save shooting time, only the depth of field layer with more subjects can be used. Focusing on the photographing, therefore, in this embodiment, the obtaining module 301 can obtain, from the generated depth of field layer, that the number of the included objects is greater than the preset number of depth of field layers as the third target depth of field layer, according to the preset object A target focus position corresponding to the third target depth of field layer is acquired corresponding to the focus position.

The focusing module 304 is configured to focus the target focus position and take a photo by the first camera and/or the second camera.

In the embodiment of the present invention, the focusing module 304 is specifically configured to:

The lens of the first camera and/or the lens of the second camera is moved to a target focus position, and the picture is taken by the first camera and/or the second camera.

In the embodiment of the present invention, when the target focus position acquired by the acquisition module 301 is one, the focus module 304 can move the lens of the first camera to the target focus position by using the motor of the first camera to achieve focusing, and pass the first after focusing. A camera performs picture capture; or when the target focus position acquired by the acquisition module 301 is one, the focus module 304 can move the lens of the second camera to the target focus position through the motor of the second camera to achieve focus, and pass after focusing The second camera performs picture shooting, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, when the target focus position acquired by the acquisition module 301 is multiple, the focus module 304 can simultaneously move the lenses of the first camera and the second camera to different target focus positions, respectively, to achieve focus, and after focusing The picture is taken by the first camera and the second camera respectively until the pictures corresponding to all the target focus positions are taken. For example, when there is a target focus position 1, a target focus position 2, a target focus position 3, and a target focus position 4, the focus module 304 can move the lens of the first camera to the target focus position 1 by the motor of the first camera to achieve focusing. And after the focus is taken, the picture 1 is taken by the first camera; at the same time, the focus module 304 can move the lens of the second camera to the target focus position 2 through the motor of the second camera to achieve focusing, and after shooting through the second camera Picture 2. After the first camera captures the picture 1, the focusing module 304 continues to move the lens of the first camera to the target focus position 3 through the motor of the first camera to achieve focusing, and captures the picture 3 through the first camera after focusing; After the second camera has taken the picture 2, the focusing module 304 continues to move the lens of the second camera to the target focus position 4 through the motor of the second camera to achieve focusing, and takes the picture 4 through the second camera after focusing. When the acquired target focus position is multiple, this method can improve the shooting rate of the picture and increase the user experience.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of another user terminal according to an embodiment of the present invention. The user terminal shown in FIG. 4 is optimized by the user terminal shown in FIG. 3. Compared with the user terminal shown in FIG. 3, the user terminal shown in FIG. 4 may include a receiving module 305, a starting module 306, and a determining module 307 in addition to all the modules of the user terminal shown in FIG. among them:

The receiving module 305 is configured to receive a camera startup command.

In the embodiment of the present invention, when the user desires to shoot, the camera startup command is sent to the user terminal; after the receiving module 305 receives the camera startup command, the shooting application is started. Optionally, the user can input a camera startup command by operating a hardware button and an application icon provided on the user terminal. Optionally, the camera startup command may also be sent by using a third-party application, for example, an application, a description, and the like for publishing a picture. Specifically, the embodiment of the present invention is not limited.

The startup module 306 is configured to start the first camera and the second camera in response to the startup instruction.

In the embodiment of the present invention, after the receiving module 305 receives the camera startup command, the startup module 306 will activate the first camera and the second camera in response to the startup command.

The determining module 307 is configured to determine whether the current focus mode is an auto focus mode, and when determining that the current focus mode is the auto focus mode, triggering the acquiring module 301 to perform the automatic focus shooting when the auto focus is received. a shooting instruction, a step of acquiring a first preview image by the first camera and acquiring a second preview image by the second camera.

In the embodiment of the present invention, after the startup module 306 starts the first camera and the second camera, the determining module 307 determines whether the current focus mode is the auto focus mode.

When the judging module 307 judges that the current focus mode is not the auto focus mode, the user terminal detects whether the user inputs a manual focus position setting command.

In the user terminal described in FIG. 3 and FIG. 4, when the user terminal receives the autofocus shooting instruction, the acquiring module acquires the first preview image through the first camera in response to the autofocus shooting instruction, and acquires the second preview image through the second camera. a preview image; the calculation module calculates, according to the first preview image and the second preview image, an object distance of the subject included in the first preview image and the second preview image from the user terminal; and the generating module generates at least one depth of field according to the calculated object distance a layer, the depth of field layer includes a first object of the first preview image and the second preview image or a plurality of objects having the same object distance from the user terminal; and the acquiring module corresponds to the focus position according to the preset object distance Relationship, obtain a target focus position corresponding to the depth of field layer, and focus the target focus position and take a photo by the focus module through the first camera and/or the second camera. It can be seen that, by using the embodiment of the invention, the focus position can be automatically set and the focus shooting can be performed, thereby avoiding the user manually setting the focus position and improving the user experience.

It should be noted that, in the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment may be referred to the related descriptions of other embodiments. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.

In the embodiment of the present invention, the user terminal module can be combined, divided, and deleted according to actual needs.

A person skilled in the art can understand that all or part of the steps of the foregoing embodiments can be completed by a program to instruct the user terminal device related hardware, and the program can be stored in a computer readable storage medium, the storage medium. It may include: a flash disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.

The photographing method and the user terminal disclosed in the embodiments of the present invention are described in detail above. The principles and embodiments of the present invention are described in the following. The description of the above embodiments is only for helping to understand the present invention. The method and its core idea; at the same time, those skilled in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. In summary, the contents of this specification should not be construed as Limitations of the invention.

Claims

A photographing method, characterized in that the method comprises:

Receiving the autofocus photographing instruction, acquiring the first preview image by the first camera and acquiring the second preview image by the second camera in response to the autofocus photographing instruction;

Calculating, according to the first preview image and the second preview image, an object distance of a subject included in the first preview image and the second preview image from a user terminal;

Generating at least one depth of field layer according to the calculated object distance, wherein the depth of field layer includes one of the objects or a plurality of the objects having the same object distance from the user terminal;

Acquiring a target focus position corresponding to the depth of field layer according to a preset correspondence between the object distance and the focus position;

The target focus position is focused and a photograph is taken by the first camera and/or the second camera.
The method according to claim 1, wherein the acquiring a target focus position corresponding to the depth of field layer according to a correspondence between a predetermined object distance and a focus position comprises:

Obtaining a first target depth map layer including a character from the generated depth map layer;

And acquiring a target focus position corresponding to the first target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.
The method according to claim 1, wherein the acquiring a target focus position corresponding to the depth of field layer according to a correspondence between a predetermined object distance and a focus position comprises:

Obtaining, from the generated depth of field layer, a second target depth of field layer whose object distance is less than a preset distance;

And acquiring a target focus position corresponding to the second target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.
The method according to claim 1, wherein the acquiring a target focus position corresponding to the depth of field layer according to a correspondence between a predetermined object distance and a focus position comprises:

Obtaining, from the generated depth map layer, that the number of included objects is greater than a preset number of third objects Depth of field depth layer;

And acquiring a target focus position corresponding to the third target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.
The method according to any one of claims 1 to 4, further comprising:

Receiving a camera start command;

And in response to the startup instruction, starting the first camera and the second camera;

Determine whether the current focus mode is the auto focus mode;

If the determination result is YES, the step of acquiring the first preview image by the first camera and acquiring the second preview image by the second camera in response to the auto focus shooting instruction when the auto focus shooting instruction is received is performed.
A user terminal, the user terminal comprising:

The acquiring module is configured to: when the auto focus shooting instruction is received, acquire the first preview image by using the first camera, and acquire the second preview image by using the second camera in response to the auto focus shooting instruction;

a calculation module, configured to calculate, according to the first preview image and the second preview image, an object distance of a subject included in the first preview image and the second preview image from a user terminal;

a generating module, configured to generate at least one depth of field layer according to the calculated object distance, where the depth of field layer includes one of the subject or a plurality of the objects having the same object distance from the user terminal;

The acquiring module is further configured to acquire a target focus position corresponding to the depth of field layer according to a preset correspondence between the object distance and the focus position;

a focusing module, configured to focus the target focus position and take a photo by the first camera and/or the second camera.
The user terminal according to claim 6, wherein the obtaining module is specifically configured to:

Obtaining a first target depth map layer including a character from the generated depth map layer;

Obtaining the first target depth map according to a preset correspondence between the object distance and the focus position The target focus position corresponding to the layer.
The user terminal according to claim 6, wherein the obtaining module is specifically configured to:

Obtaining, from the generated depth of field layer, a second target depth of field layer whose object distance is less than a preset distance;

And acquiring a target focus position corresponding to the second target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.
The user terminal according to claim 6, wherein the obtaining module is specifically configured to:

Obtaining, from the generated depth map layer, that the number of included objects is greater than a preset number of third target depth layers;

And acquiring a target focus position corresponding to the third target depth of field layer according to a correspondence relationship between the object distance and the focus position set in advance.
The user terminal according to any one of claims 6 to 9, wherein the user terminal further comprises:

a receiving module, configured to receive a camera startup command;

a startup module, configured to start the first camera and the second camera in response to the startup instruction;

a determining module, configured to determine whether the current focus mode is an auto focus mode, and when determining that the current focus mode is an auto focus mode, triggering the acquiring module to perform the automatic focus shooting instruction when the auto focus shooting instruction is received a step of acquiring a first preview image by the first camera and acquiring a second preview image by the second camera.