CN108833794A - A shooting method and mobile terminal - Google Patents

Abstract

The invention discloses a shooting method and a mobile terminal, which aim to solve the problem that the shooting effect is poor after a photographer shoots a photographer by using a rear camera of the mobile terminal. The method is applied to a mobile terminal equipped with a front camera and a rear camera, and comprises the following steps: respectively acquiring a face image through the front camera and the rear camera; when the front camera does not acquire a target face and the rear camera acquires the target face, judging whether an image acquired by the rear camera meets a preset imaging effect or not, wherein the target face is preset in the mobile terminal; and when the acquired image meets the preset imaging effect, shooting through the rear camera.

Description

A shooting method and mobile terminal

technical field

The invention relates to the field of computers, in particular to a photographing method and a mobile terminal.

Background technique

Mobile terminals with shooting functions have become very popular. In order to adapt to different shooting scenarios, mobile terminals can usually be equipped with a front camera and a rear camera on the front and back respectively. Generally, the imaging effect of the rear camera is usually better than that of the front camera. Therefore, when the subject wants to take pictures for himself through the rear camera, another photographer is usually required to cooperate, that is, the photographer is required to take pictures for the subject through the rear camera of the mobile terminal.

However, due to the photographer's limited shooting skills, as well as the courtesy and respect for the photographer, the subject generally does not request the shooting effect, and does not take up a long time of the photographer, resulting in general satisfaction with the shooting effect not tall. Therefore, it is necessary to propose a shooting method to improve the satisfaction degree of the photographed person to the image after the photographer uses the rear camera of the mobile terminal to photograph the photographed person.

Contents of the invention

Embodiments of the present invention provide a photographing method and a mobile terminal to solve the current problem of poor photographing effect after a photographer uses a rear camera of a mobile terminal to photograph a subject.

In order to solve the problems of the technologies described above, the present invention is achieved in that:

In the first aspect, an embodiment of the present invention provides a shooting method, the method is applied to a mobile terminal equipped with a front camera and a rear camera, including:

Carry out facial image collection respectively through described front camera and described rear camera;

When the front camera does not capture the target face, and the rear camera captures the target face, it is judged whether the image captured by the rear camera satisfies the preset imaging effect, and the target person The face is pre-set in the mobile terminal;

When the collected image satisfies the preset imaging effect, it is shot by the rear camera.

In the second aspect, an embodiment of the present invention provides a mobile terminal, the mobile terminal is equipped with a front camera and a rear camera, including: a collection unit, a judgment unit, and a shooting unit, wherein,

The collection unit is used to collect face images through the front camera and the rear camera respectively;

The judging unit is configured to judge whether the image captured by the rear camera satisfies a preset requirement when the front camera does not capture the target face and the rear camera captures the target face. Imaging effect, the target face is pre-set in the mobile terminal;

The photographing unit is configured to photograph through the rear camera when the collected image satisfies a preset imaging effect.

In the third aspect, the embodiment of the present invention also provides a terminal device, the terminal device includes a processor, a memory, and a computer program stored in the memory and operable on the processor, the computer program is controlled by the The steps of implementing the above method when the above processor executes.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method are implemented.

In the embodiment of the present invention, when the mobile terminal equipped with the front camera and the rear camera enters the shooting mode, the face images are collected through the two cameras respectively. The front camera does not capture the target face, and the rear camera collects When the target face is detected, it is judged whether the image captured by the rear camera meets the preset imaging effect, and if it is satisfied, it is shot through the rear camera. That is, after the camera mode is turned on, when the mobile terminal determines that there is a non-target face (corresponding photographer) to shoot for the target face (corresponding subject) through the rear camera, it is determined whether the collected image is To achieve the preset effect, if it is achieved, it will be shot through the rear camera. According to this method, the subject can pre-set himself as the target face and pre-set the imaging effect requirements. When the mobile terminal judges that the requirements are met, it can take pictures by itself, so that after the photographer takes pictures, the shooting effect can be improved. effect, thereby improving the satisfaction of the subject with the image.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a schematic flow chart of a photographing method provided by an embodiment of the present invention;

Fig. 2 is a schematic flowchart of a shooting method provided by an embodiment of the present invention;

Fig. 3 is a structural block diagram of a mobile terminal provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a hardware structure of a mobile terminal implementing an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As mentioned above, when the subject wants to take pictures for himself through the rear camera, another photographer is usually required to cooperate. For example, the subject can be the owner of the mobile terminal. When taking pictures of buildings or natural landscapes, or wanting to take family photos for yourself and your family, you usually ask passers-by to be the photographer. At this time, the owner of the phone cannot over-demand the imaging effect, and it will not take up a long time for passers-by. That is to say, when passers-by are not familiar with the camera performance of the mobile terminal, the shooting technology is not high, and the shooting time is short, the shooting effect is generally not ideal, which makes the owner of the device not satisfied with the shooting effect.

Based on the above-mentioned defects, this embodiment provides a shooting method to solve the problem that the shooting effect is poor after the photographer uses the rear camera of the mobile terminal to shoot the subject, and to improve the shooting effect to a certain extent, thereby improving the shooting effect of the subject. satisfaction with the images. This method can be applied in mobile terminals, specifically, it can be applied in currently more popular smart mobile terminals, and the mobile terminal can be equipped with a front camera and a rear camera, and the number of front cameras and rear cameras , without limitation. Then it can be assumed that the execution subject of the method is the mobile terminal.

Fig. 1 is a schematic flow chart of a photographing method provided by an embodiment of the present invention, which may include the following steps:

Step 11: Collect face images through the front camera and the rear camera respectively.

When the person being photographed (also referred to as the target user) expects to photograph himself through (also referred to as utilizing) the mobile terminal, the shooting mode is usually turned on in the mobile terminal, for example, in currently more popular smart mobile terminals, The user can start the shooting mode by clicking on the camera or other applications used to start the shooting function, so that the camera can be used for image collection. Specifically, for example, when the shooting mode is turned on, the front camera may be used to collect images first, or the rear camera may be used to collect images first.

As mentioned above, in order to achieve a better shooting effect, the target user usually expects to shoot through the rear camera, so when the shooting mode is turned on, it is generally confirmed whether the rear camera of the mobile terminal is collecting images and displayed on the display interface middle. That is, it is confirmed whether the captured photo is an image captured by the rear camera after the shutter is triggered. Thereafter, the photographer can take pictures for the target user through the rear camera of the mobile terminal.

In this step, in order to determine whether the shooting scene is a user other than the target user and is shooting for the target user, it can be determined by using the positional relationship between the front and rear cameras of the mobile terminal. Specifically, the front camera and the rear camera are in opposite directions, and The photographer and the subject are face to face, so the face images can be collected through the front camera and the rear camera respectively, so as to determine whether the photographer and the subject meet the above shooting scene.

Step 12: When the front camera does not capture the target face and the rear camera captures the target face, determine whether the image captured by the rear camera satisfies the preset imaging effect.

Face recognition can be a kind of biometric recognition technology based on the facial feature information of people. It collects images or video streams containing faces through cameras, detects and tracks faces in the images, and then detects the detected faces. Face recognition is usually also called portrait recognition and facial recognition.

In this step, it may be determined through face recognition whether the shooting scene is a user other than the target user and is shooting for the target user. Specifically, it can be determined by recognizing the target face, and the target face can be pre-set in the mobile terminal. set. As mentioned above, after the shooting mode is turned on, the rear camera is usually used for image acquisition, but in this step, the front and rear cameras can be used for face recognition at the same time to determine whether the image captured by the front camera includes the target face , and whether the target face is included in the image collected by the rear camera. After confirming that the above shooting scene is met, it can be judged whether the image collected by the rear camera satisfies the preset imaging effect.

Further, for judging whether the shooting scene is satisfied, it can be judged first whether the front camera has captured the target face, if not, that is, the collected face does not contain the target face, then it can be judged whether the rear camera has captured If the target face is collected at this time, it can be determined that it matches the shooting scene that users other than the target user are shooting for the target user; if the target face is not collected by the rear camera, the judgment process can be re-determined, or Prompting through the display interface, for example, a prompt of "Looking for the owner" can be displayed on the display interface, so as to assist the photographer to use the rear camera to capture the target face as soon as possible. In addition, it is also possible to first determine whether the target face is captured by the rear camera. If so, it can be determined whether the target face is captured by the front camera. The shooting scene being shot for the target user.

Furthermore, the preset imaging effects may include composition effects and facial expression effects preset by the mobile terminal for the shooting mode, that is, the imaging effects may be used to characterize the effects of each element in the image. For the composition effect, it can be the position of people and scenery in the image. For example, through machine learning, people, animals, plants, buildings, natural landscapes, etc. can be identified in the collected images, so that some composition can be preset The effect, for example, can be that the person is in the lower left or lower right of the building in the image; for the facial expression effect, it can be that the facial expression is recognized as smiling, etc. These preset imaging effects can be downloaded from the server by the mobile terminal, or can be obtained through machine learning based on the user's historical shooting behavior. For this shooting mode, it may be called an AI smart mode in practical applications, that is, intelligent judgment is made by the mobile terminal.

Afterwards, it can be judged whether the image captured by the rear camera satisfies the preset imaging effect, that is, after the above-mentioned shooting scene is determined, it can be judged whether the image collected by the rear camera meets the preset imaging effect, for example It can be as described in the previous paragraph, when the buildings and people are recognized in the collected images, it can be judged whether the positional relationship between the people and the buildings in the image is that the people are at the lower left or lower right of the building; After the human face is recognized in the collected image, it can be judged whether the facial expression is in a smiling state, etc. In practical applications, real-time judgments can be made based on the images collected by the mobile terminal in real time, that is, when the collected images change, for example, after changes in the position and angle of the mobile terminal are detected, the judgment can be made in real time , or judge according to a preset time interval, such as once every second, etc.

Step 13: When the collected image satisfies the preset imaging effect, shoot it with the rear camera.

It has been introduced in the previous steps that the preset imaging effect can be the composition effect and facial expression effect of each element in the image preset by the mobile terminal for the shooting mode, and can be based on whether the collected image meets the preset Then, when it is judged that the collected image meets the preset imaging effect in this step, it will be shot through the rear camera, for example, the shutter can be automatically triggered to shoot, and the captured image will be saved in the mobile in the memory of the mobile terminal.

In practical applications, it is possible that the collected image does not meet the preset imaging effect, so in this case, in order to improve the imaging effect as much as possible, in an embodiment, the method may also include:

When the collected image does not meet the preset imaging effect, it is judged whether the collected image meets the preset image quality condition, and when the preset image condition is satisfied, continuous shooting is performed through the rear camera.

Specifically, the preset image quality may be characterized by various optical technical indicators in the image, for example, may include white balance indicators, exposure indicators, focus indicators, sensitivity indicators, and the like. For example, the server can perform machine learning on popular images to obtain a combination of optical technical indicators, and determine the combination as an image quality condition, or the mobile terminal can perform machine learning based on the favorite images selected by users to determine The image quality conditions including various optical technical indicators are presented. In practical applications, machine learning continues to evolve. For example, it can be changed according to the aesthetic trend of the public, or according to different images that users like. Therefore, the existing image quality conditions may be biased. The camera performs continuous shooting, for example, the shutter can be triggered continuously, and the shooting is performed and saved.

In one embodiment, in order to save processing resources and storage resources, the continuous shooting can be stopped after a "good enough" image is captured, so this method can also include: when there are images with a weight higher than When an image with a preset weight is selected, the shooting is stopped. Wherein, the weight value can be determined according to the pixel points of the image, and is used to represent the visual effect of the image. Specifically, machine learning can be used to extract pixels from popular images, and weights similar to evaluating visual effects can be obtained through the position, combination, and size of pixels. When the value of the image is higher than the preset weight value, it means that an image with better visual effect has been captured. At this time, the shooting can be stopped, and the image higher than the preset weight value can be stored.

That is to say, in this method, the mobile terminal can allow the photographer to take pictures unconsciously without the photographer pressing the shutter button, and store them in the memory. In practical applications, the photographer can also press the shutter button. The generated images are saved and selected by the target user.

Using the method provided by the above-mentioned embodiments of the present invention, when the mobile terminal equipped with the front camera and the rear camera enters the shooting mode, the face images are collected through the two cameras respectively, and the target face is not collected by the front camera, and When the rear camera captures the target face, it is judged whether the image captured by the rear camera satisfies the preset imaging effect, and if it is satisfied, it is shot through the rear camera. That is, after the camera mode is turned on, when the mobile terminal determines that there is a non-target face (corresponding photographer) to shoot for the target face (corresponding subject) through the rear camera, it is determined whether the collected image is To achieve the preset effect, if it is achieved, it will be shot through the rear camera. According to this method, the subject can pre-set himself as the target face and pre-set the imaging effect requirements. When the mobile terminal judges that the requirements are met, it can take pictures by itself, so that after the photographer takes pictures, the shooting effect can be improved. effect, thereby improving the satisfaction of the subject with the image.

Based on the inventive idea equivalent to the above-mentioned method embodiment, this embodiment provides another shooting method to solve the problem that the shooting effect is poor after the photographer uses the rear camera of the mobile terminal to shoot the subject, to a certain extent Improve the shooting effect, thereby improving the satisfaction of the subject with the image. It is assumed that the execution subject of this method may also be a mobile terminal.

Fig. 2 is a schematic flowchart of a shooting method provided by an embodiment of the present invention, which may include the following steps:

Step 21: Generate an image template including the positional relationship of image elements according to the collected sample image and the desired position of the person specified in the sample image.

It has been introduced in the foregoing embodiments that the imaging effect may include a composition effect, such as a composition effect obtained through machine learning. In this step, the user can set the composition effect by himself. Specifically, the user can first use the camera of the mobile terminal to collect a sample image, such as a specific building, a specific natural landscape, etc., and specify the desired position of the person in the sample image, such as the left or right side of the building , the bottom of a specific natural landscape, etc., so that the mobile terminal can generate an image template including the positional relationship of image elements according to the sample image and the expected position of the person in the sample image. For example, the image template may include a positional relationship between a person and a specific building.

Step 22: Receive a preset style effect instruction, and determine the preset style effect.

Style effects can refer to various special effects used to achieve images, such as various filter effects, or user-preset color effects on images, etc., where the filter effects can include stylization, blurring, sharpening, Rendering, etc., and mobile terminal developers can generate various style effects that are easy for users to understand based on the combination of various filter effects, such as character effects, landscape effects, motion effects, black and white effects, etc. In order to be able to capture the style effect desired by the user, in this step, after setting the positional relationship, the preset style effect instruction can also be received, thereby specifying the style effect of the image, such as receiving the preset character effect, landscape effect , motion effect, black and white effect, etc., in order to specify the style effect of the image, and it can also specify the combination of the order and degree of inclusion of various filters on the image.

It should be noted that step 21 and step 22 are executed in no particular order, that is, step 21 may be executed first and then step 22 may be executed, or step 22 may be executed first and then step 21 may be executed, or they may be executed simultaneously.

Step 23: Collect face images through the front camera and the rear camera respectively.

This step can be similar to step 11 of the aforementioned embodiment, and the face image can be collected through the front camera and the rear camera respectively, so as to determine whether the shooting scene is a user other than the target user and is shooting for the target user. I won't repeat them here.

Step 24: When the front camera does not capture the target face and the rear camera captures the target face, determine whether the matching degree between the image captured by the rear camera and the image template is greater than or equal to a preset threshold.

As mentioned above, when it is determined that the shooting scene is the above-mentioned scene, the matching degree between the image captured by the rear camera and the image template can be judged. If the matching degree is greater than or equal to the preset threshold, it indicates that each image element in the captured image The positional relationship of is close to the expected positional relationship.

Step 25: When the matching degree between the collected image and the image template is higher than the preset threshold, shoot with the rear camera.

When the positional relationship of each image element in the collected image is close to the expected positional relationship in the image template, it can be photographed by the rear camera.

Having determined the preset style effect in the foregoing steps, in order to further improve the satisfaction with the imaging effect, shooting through the rear camera may include: shooting with the preset style effect through the rear camera. Specifically, when the image is captured and the matching degree with the image template is greater than or equal to the preset threshold, the style effect can be set as the preset style effect, and then the shutter is triggered to shoot. In practical applications, the style effect can be set to Both the effect and the triggering of the shutter can be performed in the background, so that the user is not aware of it.

In practical applications, it is possible that the matching degree between the collected image and the image template is low, that is, in the collected image, the positional relationship of each image element is far from the image template set by the user. At this time, in order to improve The degree of matching between the collected image and the image template, in one embodiment, this step may also include:

When the matching degree between the collected image and the image template is less than the preset threshold, the displacement and/or rotation direction of the mobile terminal is determined according to the collected image and the image template; according to the determined displacement and/or rotation direction, by moving The terminal prompts.

In this step, when the matching degree between the collected image and the image template is low, the displacement and/or rotation direction of the mobile terminal can be determined according to the collected image and the image template, that is, the position and/or rotation direction of the mobile terminal can be determined. Orientation correction. Specifically, image matching can be used to determine the amount of displacement and rotation required by the mobile terminal. Feature extraction can be performed on the image template and the collected image first, and the feature extraction results of the two images are matched, and the position and shape of the similar features in the image are used to determine the displacement and/or rotation required by the mobile terminal direction.

After the displacement and/or rotation direction is determined, the mobile terminal can be prompted according to the determined displacement and/or rotation direction, so that when the mobile terminal is subsequently displaced or rotated, it can continue to judge whether the image captured by the rear camera is compatible with the mobile terminal. Whether the matching degree of the image template is greater than or equal to a preset threshold.

In practical applications, it is possible that due to setting errors or temporary changes, the matching degree between the collected image and the image template is less than the preset threshold. In this case, in order to improve the imaging effect as much as possible, in a In a kind of implementation mode, this method can also comprise:

When the matching degree between the collected image and the image template is less than the preset threshold, it is judged whether the collected image satisfies the preset image quality condition, and when the preset image condition is met, continuous shooting is performed through the rear camera.

When there is an image whose weight is higher than the preset weight in the continuously captured images, the shooting is stopped.

Similar to the above-mentioned embodiment, the weight is determined according to the pixel points of the image, and is used to represent the visual effect of the image, and the image quality can be used to represent various optical technical indicators in the image. The specific implementation manner may be similar to the foregoing embodiment, and details are not repeated here.

Using the method provided by the above-mentioned embodiments of the present invention, sample images can be collected, and the desired position of the person can be specified, and an image template including the positional relationship of image elements can be set. When a mobile terminal equipped with a front camera and a rear camera enters the shooting mode Finally, the face images are collected by the two cameras respectively. When the front camera does not capture the target face and the rear camera captures the target face, it is judged whether the image captured by the rear camera matches the image template. When it is higher, it is captured by the rear camera. That is, first set the image template according to the requirements, and after the camera mode is turned on, when the mobile terminal determines that there is a non-target face (corresponding photographer) to shoot for the target face (corresponding subject) through the rear camera , judge whether the collected image matches the image template, and if so, shoot through the rear camera. According to this method, the subject can pre-set himself as the target face and pre-set the image template containing the positional relationship. When the mobile terminal judges that the requirement is met, it can shoot by itself, so that after the photographer takes the photo , improve the shooting effect, thereby improving the satisfaction of the subject with the image.

Based on the inventive idea equivalent to the above-mentioned method embodiment, the embodiment of the present invention provides a mobile terminal to solve the problem of excessive time consumption and low installation efficiency when installing application programs, and shorten the time for installing application programs to a certain extent, thereby improving Installation efficiency. Fig. 3 is a structural block diagram of a mobile terminal provided by an embodiment of the present invention, the mobile terminal may include: a collection unit 31, a judging unit 32, and a photographing unit 33, wherein,

The collection unit 31 can be used to collect face images through the front camera and the rear camera respectively;

The judging unit 32 can be used to judge whether the image captured by the rear camera satisfies a preset imaging effect when the target face is not captured by the front camera and the target face is captured by the rear camera. The target face is pre-set in the mobile terminal;

The photographing unit 33 can be configured to photograph through a rear camera when the collected image meets a preset imaging effect.

In one embodiment, the mobile terminal further includes a first setting unit, which can be used for:

Before the acquisition unit 31 performs face image acquisition through the front camera and the rear camera respectively,

According to the collected sample image and the expected position of the person specified in the sample image, an image template including the positional relationship of the image elements is generated; then

The judging unit 32 may be used for:

Judging whether the matching degree between the image collected by the rear camera and the image template is greater than or equal to a preset threshold; then

The photographing unit 33 can be used for:

When the matching degree between the collected image and the image template is greater than or equal to a preset threshold, shooting is performed by a rear camera.

In one embodiment, the mobile terminal further includes a second setting unit, which can be used for:

Before the acquisition unit 31 performs face image acquisition through the front camera and the rear camera respectively,

receiving a preset style effect command to determine the preset style effect; then

The photographing unit 33 can be used for:

Shoot with the preset style effect through the rear camera.

In one embodiment, the mobile terminal further includes a determination unit and a prompt unit, wherein,

The determining unit is configured to determine the displacement and/or rotation direction of the mobile terminal according to the collected image and the image template when the matching degree between the collected image and the image template is less than a preset threshold;

The prompting unit is configured to give prompts through the mobile terminal according to the determined displacement and/or rotation direction.

In one embodiment, the judging unit 32 can also be used to:

When the collected image does not meet the preset imaging effect, it is judged whether the collected image meets the preset image quality condition;

The photographing unit 33 can also be used for:

When the preset image condition is satisfied, the rear camera is used for continuous shooting;

When there is an image with a weight higher than a preset weight among the continuously captured images, the shooting is stopped. The weight is determined according to the pixels of the image and is used to represent the visual effect of the image.

It can be seen from the above-mentioned embodiments that when the mobile terminal equipped with a front camera and a rear camera enters the shooting mode, face image acquisition is performed through the two cameras respectively. The front camera does not capture the target face, and the rear camera captures When the target face is detected, it is judged whether the image captured by the rear camera meets the preset imaging effect, and if it is satisfied, it is shot through the rear camera. That is, after the camera mode is turned on, when the mobile terminal determines that there is a non-target face (corresponding photographer) to shoot for the target face (corresponding subject) through the rear camera, it is determined whether the collected image is To achieve the preset effect, if it is achieved, it will be shot through the rear camera. According to this method, the subject can pre-set himself as the target face and pre-set the imaging effect requirements. When the mobile terminal judges that the requirements are met, it can take pictures by itself, so that after the photographer takes pictures, the shooting effect can be improved. effect, thereby improving the satisfaction of the subject with the image.

Fig. 4 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention. Various processes implemented in the method embodiment in FIG. 1 can be implemented. To avoid repetition, details are not repeated here.

The mobile terminal 400 includes but not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, an object input unit 407, an interface unit 408, a memory 409, a processor 410, and Power supply 411 and other components. Those skilled in the art can understand that the structure of the mobile terminal shown in Figure 3 does not constitute a limitation on the mobile terminal, and the mobile terminal may include more or less components than shown in the figure, or combine some components, or different components layout. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, and a pedometer.

Among them, the input unit 404 can be used to perform the following operations:

Face image acquisition is performed through the front camera and the rear camera respectively;

The processor 410 may be configured to perform the following operations:

When the front camera does not capture the target face, and the rear camera captures the target face, it is judged whether the image captured by the rear camera satisfies the preset imaging effect, and the target person The face is pre-set in the mobile terminal;

When the collected image satisfies the preset imaging effect, it is shot by the rear camera.

According to the mobile terminal provided in this embodiment, when the mobile terminal equipped with the front camera and the rear camera enters the shooting mode, the face images are collected through the two cameras respectively, and the target face is not captured by the front camera, and the rear camera When the camera captures the target face, it is judged whether the image captured by the rear camera satisfies the preset imaging effect, and if it is satisfied, it is shot through the rear camera. That is, after the camera mode is turned on, when the mobile terminal determines that there is a non-target face (corresponding photographer) to shoot for the target face (corresponding subject) through the rear camera, it is determined whether the collected image is To achieve the preset effect, if it is achieved, it will be shot through the rear camera. According to this method, the subject can pre-set himself as the target face and pre-set the imaging effect requirements. When the mobile terminal judges that the requirements are met, it can take pictures by itself, so that after the photographer takes pictures, the shooting effect can be improved. effect, thereby improving the satisfaction of the subject with the image.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 401 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 410; Uplink data is sent to the base station. Generally, the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides the subject with wireless broadband Internet access through the network module 402, such as helping the subject send and receive emails, browse web pages, and access streaming media.

The audio output unit 403 may convert audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output as sound. Also, the audio output unit 403 can also provide audio output related to a specific function performed by the mobile terminal 400 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.

The input unit 404 is used for receiving audio or video signals. The input unit 404 can include a graphics processing unit (Graphics Processing Unit, GPU) 1031 and a microphone 4042, and the graphics processing unit 4041 is used for still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frames may be displayed on the display unit 406 . The image frames processed by the graphics processor 4041 may be stored in the memory 409 (or other storage media) or sent via the radio frequency unit 401 or the network module 402 . The microphone 4042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 for output in the case of a phone call mode.

The mobile terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 4061 and the display panel 4061 when the mobile terminal 400 moves to the ear / or backlighting. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is still, and can be used to identify the posture of mobile terminals (such as horizontal and vertical screen switching, related games, etc.) , magnetometer posture calibration), vibration recognition-related functions (such as pedometer, knocking), etc.; the sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.

The display unit 406 is used to display information input by the subject or information provided to the subject. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The object input unit 407 can be used to receive input number or character information, and generate key signal input related to object setting and function control of the mobile terminal. Specifically, the object input unit 407 includes a touch panel 4071 and other input devices 4072 . The touch panel 4071, also referred to as a touch screen, can collect touch operations of an object on or near it (for example, the object uses any suitable object or accessory such as a finger, a stylus, etc. on the touch panel 4071 or near the touch panel 4071 operate). The touch panel 4071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the touch orientation of the object, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the For the processor 410, receive the command sent by the processor 410 and execute it. In addition, the touch panel 4071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 4071 , the object input unit 407 may also include other input devices 4072 . Specifically, other input devices 4072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Furthermore, the touch panel 4071 can be covered on the display panel 4061. When the touch panel 4071 detects a touch operation on or near it, it will be sent to the processor 410 to determine the type of the touch event. The type of event provides a corresponding visual output on the display panel 4061 . Although in FIG. 4, the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated. The implementation of the input and output functions of the mobile terminal is not specifically limited here.

The interface unit 408 is an interface for connecting an external device to the mobile terminal 400 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 408 can be used to receive input from an external device (for example, data information, power, etc.) transfer data between devices.

The memory 409 can be used to store software programs as well as various data. The memory 409 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The processor 410 is the control center of the mobile terminal, which uses various interfaces and lines to connect various parts of the entire mobile terminal, by running or executing software programs and/or modules stored in the memory 409, and calling data stored in the memory 409 , execute various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. The processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, object interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410 .

The mobile terminal 400 can also include a power supply 411 (such as a battery) for supplying power to various components. Preferably, the power supply 411 can be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. and other functions.

In addition, the mobile terminal 400 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention also provides a mobile terminal, including a processor 410, a memory 409, a computer program stored in the memory 409 and operable on the processor 410, when the computer program is executed by the processor 410 The various processes of the above embodiments of the photographing and photographing method can be realized, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the above-mentioned shooting method embodiment is realized, and the same technology can be achieved. Effect, in order to avoid repetition, will not repeat them here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive. Those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, all of which belong to the protection of the present invention.

Claims (11)

1. a kind of image pickup method, which is characterized in that the method is applied to be equipped with the shifting of front camera and rear camera Dynamic terminal, including：

Man face image acquiring is carried out respectively by the front camera and the rear camera；

When the front camera does not collect target face, and the rear camera collects the target face, sentence Whether the rear camera acquired image of breaking meets preset imaging effect, and the target face is in advance mobile whole It is set in end；

When the acquired image meets preset imaging effect, shot by the rear camera.

2. the method as described in claim 1, which is characterized in that described to pass through the front camera and the rear camera Before carrying out man face image acquiring respectively, the method also includes：

According to collected sample image, and the personage's desired locations specified in the sample image, generating includes image The image template of element position relationship；Then

It is described to judge whether the rear camera acquired image meets preset imaging effect, including：

It is default to judge whether the matching degree of the rear camera acquired image and described image template is more than or equal to Threshold value；Then

It is described to be shot when the acquired image meets preset imaging effect by the rear camera, packet It includes：

When the matching degree of the acquired image and described image template is more than or equal to the preset threshold, pass through institute Rear camera is stated to be shot.

3. method according to claim 2, which is characterized in that described to pass through the front camera and the rear camera Before carrying out man face image acquiring respectively, the method also includes：

Preset stylistic effects instruction is received, determines preset stylistic effects；Then

It is described to be shot by the rear camera, including：

By the rear camera, shot with the preset stylistic effects.

4. method according to claim 2, which is characterized in that the method also includes：

When the matching degree of the acquired image and described image template is less than preset threshold, according to the collected figure Picture and described image template, determine the displacement and/or rotation direction of the mobile terminal；

According to the displacement determined and/or rotation direction, prompted by the mobile terminal.

5. the method as described in claim 1, which is characterized in that the method also includes：

When the acquired image does not meet preset imaging effect, it is default to judge whether the acquired image meets Picture quality condition；

When meeting the pre-set image condition, it is continuously shot using the rear camera；

When in the image being continuously shot there are weight be higher than preset weights image when, then stop shooting, the weight is according to figure The pixel of picture determines, for characterizing the visual effect of image.

6. a kind of mobile terminal, which is characterized in that the mobile terminal is equipped with the movement of front camera and rear camera Terminal, including：Acquisition unit, judging unit and shooting unit, wherein

The acquisition unit, for carrying out man face image acquiring respectively by the front camera and the rear camera；

The judging unit, for not collecting target face when the front camera, and the rear camera collects When the target face, judge whether the rear camera acquired image meets preset imaging effect, the target Face is set in the terminal in advance；

The shooting unit, for being imaged by the postposition when the acquired image meets preset imaging effect Head is shot.

7. mobile terminal as claimed in claim 6, which is characterized in that the mobile terminal further includes the first setting unit, is used In：

Before acquisition unit execution carries out man face image acquiring respectively by the front camera and the rear camera,

According to collected sample image, and the personage's desired locations specified in the sample image, generating includes image The image template of element position relationship；Then

The judging unit, is used for：

It is default to judge whether the matching degree of the rear camera acquired image and described image template is more than or equal to Threshold value；Then

The shooting unit, is used for：

When the matching degree of the acquired image and described image template is more than or equal to the preset threshold, pass through institute Rear camera is stated to be shot.

8. mobile terminal as claimed in claim 7, which is characterized in that the mobile terminal further includes the second setting unit, is used In：

Before acquisition unit execution carries out man face image acquiring respectively by the front camera and the rear camera,

Preset stylistic effects instruction is received, determines preset stylistic effects；Then

The shooting unit, is used for：

By the rear camera, shot with the preset stylistic effects.

9. mobile terminal as claimed in claim 7, which is characterized in that the mobile terminal further includes determination unit, prompt list Member, wherein

The determination unit, for when the matching degree of the acquired image and described image template is less than preset threshold, According to the acquired image and described image template, the displacement and/or rotation direction of the mobile terminal are determined；

The prompt unit, for being mentioned by the mobile terminal according to the displacement and/or rotation direction determined Show.

10. mobile terminal as claimed in claim 6, which is characterized in that the judging unit is also used to：

When the acquired image does not meet preset imaging effect, it is default to judge whether the acquired image meets Picture quality condition；

The shooting unit, is also used to：

When meeting the pre-set image condition, it is continuously shot using the rear camera；.

When in the image being continuously shot there are weight be higher than preset weights image when, then stop shooting, the weight is according to figure The pixel of picture determines, for characterizing the visual effect of image.

11. a kind of mobile terminal, which is characterized in that including：It memory, processor and is stored on the memory and can be in institute The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is executed by the processor Any one of described in image pickup method the step of.