WO2020220973A1

WO2020220973A1 - Photographing method and mobile terminal

Info

Publication number: WO2020220973A1
Application number: PCT/CN2020/084225
Authority: WO
Inventors: 徐伟
Original assignee: 维沃移动通信有限公司
Priority date: 2019-04-29
Filing date: 2020-04-10
Publication date: 2020-11-05
Also published as: CN110049221B; CN110049221A

Abstract

Provided are a photographing method and a mobile terminal. The photographing method of the present disclosure comprises: when it is detected that a view finding camera extends out of a shell through an opening, determining a photographed object; acquiring a target angle between the position of the photographed object and a preset position of an image sensor within a preset time period before a target moment, wherein the target moment is a moment when each image frame is generated according to the photographed object; and when the target angle is different from a preset angle, adjusting the target angle to the preset angle by controlling the view finding camera to rotate; and photographing the photographed object to generate the image frame.

Description

Shooting method and mobile terminal

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910355129.7 filed in China on April 29, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of communication applications, and in particular, to a shooting method and a mobile terminal.

Background technique

With the development and progress of smart phones, mobile phones have more and more functions. With the diversification of mobile phone functions, users have higher and higher requirements for the size of the mobile phone display; the increase in the size of the display has led to an increase in the size of the mobile phone, which has reached the limit size of a human hand, and then increase the size The size will affect the user experience. Therefore, on the basis of a certain external size, increasing the proportion of the display screen has become a development trend to increase the display size.

Among the various functions of mobile phones, the camera function is used very frequently. In order to realize the Selfie function, the front of the mobile phone must have a camera shooting window. To increase the proportion of the display screen on the upper and lower narrow sides, it is necessary to solve the contradiction of the Selfie camera occupying the display area. A lift camera becomes a better solution to this problem.

However, it is difficult for the lifting camera in the related technology to automatically track the image. When the user shoots a short video, the cooperation of other people is required to complete the shooting; while some short video shooting is relatively private, the user needs to shoot alone, so it is difficult Meet the user's shooting needs.

Summary of the invention

The purpose of the present disclosure is to provide a photographing method and a mobile terminal to solve the problem that the elevating camera in the related art is difficult to automatically track images.

In order to solve the above technical problems, the present disclosure is implemented as follows:

In the first aspect, the embodiments of the present disclosure provide a shooting method applied to a mobile terminal. The mobile terminal includes a housing, a viewfinder lens, and an image sensor. The housing is provided with an opening, and the viewfinder lens is movably Is arranged in the housing to extend or retract from the opening, and the viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used to The light rays entering the viewfinder lens are projected to the image sensor, and the shooting method includes:

When it is detected that the viewfinder lens protrudes from the housing through the opening, determining a shooting object;

Acquiring a target angle between the position of the shooting object and the preset position of the image sensor in a preset time period before the target time, where the target time is the time at which each image frame is generated according to the shooting object;

When the target angle is different from the preset angle, adjusting the target angle to the preset angle by controlling the rotation of the viewfinder lens;

The image frame is generated by shooting the subject.

In a second aspect, an embodiment of the present disclosure also provides a mobile terminal, including a housing, a viewfinder lens, and an image sensor, the housing is provided with an opening, and the viewfinder lens is movably disposed on the housing to view The opening extends or retracts, and the viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used to shoot into the viewfinder lens The light is projected to the image sensor, and the mobile terminal further includes:

A determining module, configured to determine a shooting object when detecting that the viewfinder lens protrudes from the housing through the opening;

The acquiring module is configured to acquire the target angle between the position of the photographing object and the preset position of the image sensor within a preset time period before the target moment, and the target time is to generate each image according to the photographing object Moment of frame

An adjustment module, configured to adjust the target angle to the preset angle by controlling the rotation of the viewfinder lens when the target angle is different from the preset angle;

The processing module is configured to photograph the subject to generate the image frame.

In a third aspect, the embodiments of the present disclosure also provide a mobile terminal, including a processor, a memory, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor. When executed, the steps of the above-mentioned shooting method are realized.

In a fourth aspect, the embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the shooting method described above are implemented.

The embodiments of the present disclosure have the following beneficial effects:

The above-mentioned technical solutions of the embodiments of the present disclosure ensure that the target angle between the position of the shooting object and the preset position of the image sensor is the preset angle by rotating the viewfinder lens so as to achieve the target angle Real-time tracking.

Description of the drawings

FIG. 1 is a schematic diagram of imaging through a viewfinder lens and a camera in an embodiment of the disclosure;

2 is a schematic diagram of the first light path during imaging in an embodiment of the disclosure;

3 is a schematic diagram of a second light path during imaging in an embodiment of the disclosure;

4 is a schematic flowchart of a shooting method according to an embodiment of the disclosure;

FIG. 5 is a schematic diagram of the driving motor rotating in an embodiment of the disclosure;

6 is a schematic diagram of the relationship between the difference α between the target angle and the preset angle and the number of image frames;

Figure 7 is a schematic diagram of the rotation curve corresponding to the uniform rotation and the non-uniform rotation of the motor;

FIG. 8 is one of schematic diagrams of modules of a mobile terminal provided by an embodiment of the disclosure;

FIG. 9 is a second schematic diagram of modules of a mobile terminal provided by an embodiment of the disclosure;

FIG. 10 is a structural block diagram of a mobile terminal provided by an embodiment of the disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The shooting method of the embodiment of the present disclosure is applied to a mobile terminal. The mobile terminal includes a housing, a viewfinder lens, and an image sensor, the housing is provided with an opening, and the viewfinder lens is movably provided on the housing to Extend or retract from the opening, and the viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used to shoot into the viewfinder lens The above-mentioned viewfinder lens may be specifically a mirror or a reflective lens. Further, the mobile terminal of the embodiment of the present disclosure further includes a camera lens arranged inside the housing and connected to the image sensor, As shown in FIG. 1, when the viewfinder lens 3 extends from the housing through the opening, the incident light passes through the viewfinder lens 3 to convert horizontal light into vertical light, and then illuminates the camera 21, and then the image The image is formed on the sensor 22 (Complementary Metal Oxide Semiconductor (CMOS) or Charge Coupled Device (CCD)). The image sensor converts the resulting image into binary data and passes through the terminal processor (Central The image information processor (Image Signal Processor, ISP) in the Processing Unit (CPU) converts it into display data and displays it on the display screen, so that the user can see the captured image.

As shown in Figure 2, when the subject is at point A, the image formed by the subject on the image sensor is A', when the subject is at point A1, the image formed by the subject on the image sensor is A1', and the subject is at A2 When you click, the image of the subject on the image sensor is A2'.

When the shooting target moves from point A to point A1, it corresponds to the image sensor moving from A'to A1'; at this time, the angle of the object relative to the camera is α1, and the angle corresponding to the image sensor is α3. Figure 3 shows that α1=α3, where the O point in Figure 2 and Figure 3 represents the center position of the camera lens;

In the same way, when the subject moves from point A to point A2, the corresponding to the image sensor is A'move to A2'; at this time, the angle of the subject relative to the camera is α2, and the angle corresponding to the movement on the image sensor is α4 , It can be seen from Figure 3 that α2=α4;

For the convenience of calculation, assume that A'is at the center of the image sensor; the horizontal distance from A'to A1' is x, and the vertical distance from the image sensor to the camera lens is d, then α3=arctan(x/d), and α1=α3, so α1=α3=arctan(x/d); x can be positive or negative, assuming the definition: when the image formed on the image sensor is on the left, x is positive, and the image formed is When the right side is negative, when x is positive, α1=α3 is positive, and when x is negative, α1=α3 is negative.

The frame rate of the camera shooting preview is generally 30 frames. By comparing the images of two adjacent frames, the horizontal distance x of the subject moving on the image sensor can be obtained, and each frame of image can be obtained through the Hall device on the closed loop motor. The distance d from the middle image sensor to the camera lens is used to obtain the moving angle of the object relative to the camera in two adjacent frames, so that the angle of the object moving relative to the camera can be obtained in real time. Based on the above principle, it can be obtained that the purpose of tracking shooting is to keep the shooting object at a specific position of the image sensor (for example, the middle position of the image sensor) for imaging.

Based on this, as shown in FIG. 4, an embodiment of the present disclosure provides a shooting method, including:

Step 401: When it is detected that the viewfinder lens protrudes from the housing through the opening, determine the shooting object.

In the specific embodiment of the present disclosure, when the user clicks on the camera icon or a third-party application needs to call the camera module, the processor controls the viewfinder lens to extend out of the housing through the opening. When the viewfinder lens fully extends out of the housing, The camera module is activated, and the camera determines the shooting target selected by the user as the shooting object. The subject can be a human face. The camera recognizes the image of the photographed object and collects feature points, so that the photographed object can be tracked and photographed later.

Step 402: Acquire a target angle between the position of the photographic subject and the preset position of the image sensor within a preset period of time before the target moment, and the target moment is the value of each image frame generated according to the photographic subject time.

Here, the target angle specifically refers to the angle by which the current position of the photographing object deviates from the preset position of the image sensor. Before each image frame is generated, the target angle between the position of the photographing object and the preset position of the image sensor is obtained. In order to control the rotation of the viewfinder lens according to the target angle, thereby ensuring that the image formed by the subject on the image sensor is always located at the preset position of the image sensor.

As an optional implementation manner, the preset position of the image sensor is the center position of the image sensor.

Determining the preset position of the image sensor as the center position of the image sensor ensures that the image formed by the subject on the image sensor is always located at the center position of the image sensor, which conforms to the user's shooting habits.

Step 403: When the target angle is different from the preset angle, adjust the target angle to the preset angle by controlling the rotation of the viewfinder lens.

The preset angle can be specifically set to 0 degrees. When the angle between the position of the shooting object and the preset position of the image sensor is not 0, the viewfinder lens is controlled to rotate to ensure the position of the shooting object and the preset position of the image sensor The angle between is 0 degrees, that is, to ensure that the image formed by the subject on the image sensor is always at the center of the image sensor.

Step 404: Take a picture of the subject to generate the image frame.

Specifically, the image frame is generated by controlling the camera to shoot the subject.

According to the shooting method of the embodiment of the present disclosure, when it is detected that the viewfinder lens extends from the housing through the opening, the shooting object is determined; the position and the position of the shooting object are acquired within a preset time period before the target time. The target angle between the preset positions of the image sensor, the target moment is the moment when each image frame is generated according to the photographing object; when the target angle is different from the preset angle, by controlling the rotation of the viewfinder lens, The target angle is adjusted to the preset angle; and the image frame is generated by shooting the subject. In the embodiments of the present disclosure, the viewfinder lens is rotated to ensure that the target angle between the position of the subject and the preset position of the image sensor is the preset angle when each image frame is taken, so that real-time tracking of the subject is achieved .

Further, the preset time period is a time period corresponding to shooting one image frame.

Assuming that in the embodiment of the present disclosure, the time corresponding to shooting an image frame is n milliseconds, that is, when an image frame is generated at time n, time 2n, time 3n, ..., then it is in 0-n, n-2n, 2n -3n..., acquire the target angle between the position of the subject and the preset position of the image sensor. For example, the frame rate of the camera is 30 frames, and the time period corresponding to shooting an image frame is 33.3ms, specifically in the time period of 0-33.3ms, the time period of 33.3-66.6,..., the position and image of the subject are acquired The target angle between the preset positions of the sensor.

It should be noted that the target angle obtained in the 0-n time period is the angle between the object and the image sensor at time 0, and the target angle obtained in the n-2n time period is the angle between the object and the image sensor at time n The angle between is the angle between the subject and the image sensor when the target angle is acquired in the time period of 2n-3n.

In the embodiments of the present disclosure, within the time period corresponding to each image frame, the target angle between the position of the shooting object and the preset position of the image sensor is obtained to ensure that when each image frame is generated, the shooting object is in the image The image formed on the sensor is always close to the center of the image sensor, that is, tracking shooting is realized.

Further, the mobile terminal further includes a camera lens, and the camera lens is arranged in the housing and connected with the image sensor;

The acquiring the target angle between the current position of the shooting object and the preset position of the image sensor includes:

Acquire a first distance and a second distance; wherein, the first distance is the distance between the image formed by the subject on the image sensor and the preset position of the image sensor, and the second distance Is the distance between the image sensor and the camera lens;

According to the first distance and the second distance, the target angle is obtained.

Assuming that the above-mentioned first distance is x and the above-mentioned second distance is d, it can be known from the above Fig. 2 and Fig. 3 that the target angle is equal to arctan(x/d).

The above-mentioned first distance can be obtained by counting pixels by the processor, and the above-mentioned second distance can be obtained by a Hall device on a closed-loop motor.

Further, the mobile terminal further includes: a motor connected to the viewfinder lens;

The adjusting the target angle to the preset angle by controlling the rotation of the viewfinder lens includes:

Determine the first angle of rotation of the viewfinder lens according to the target angle and the preset angle;

Determine the second angle of rotation of the motor according to the first angle;

Controlling the motor to rotate the second angle within the preset time period.

Here, there is a corresponding relationship between the angle of the motor rotation and the angle of the viewfinder lens. According to the above-mentioned target angle and the preset angle, the first angle of the viewfinder lens rotation can be calculated. Specifically, the first angle is the above-mentioned target angle and The difference between the preset angles, and according to the corresponding relationship between the angle of rotation of the motor and the angle of rotation of the viewfinder lens, the second angle of motor rotation is obtained, and then the processor controls the motor to rotate the second angle within a preset period of time angle.

Specifically, as shown in Figure 5, first, power supplies power to the motor driver, the processor sends an instruction EN to enable the motor driver, and selects the drive mode (subdivision drive level) of the motor driver through the MODE pin. The motor driver modulates according to pulse width The number of pulses (Pulse-Width Modulation, PWM) determines how many steps the motor takes to achieve precise control of the motor.

Further, the difference between the rotation speed of the motor at the last moment of the preset time period and zero is less than a preset threshold.

Here, the motor can rotate in a way that the speed gradually decreases within a preset time period, or it can rotate at a uniform speed first, and then rotate in a way that the speed gradually decreases, that is to ensure that the motor speed approaches 0 at the last moment. .

In the embodiments of the present disclosure, the purpose of tracking and shooting is to always keep the subject in the middle of the image sensor, that is, after reaching a steady state, the value of α (the difference between the target angle and the preset angle) tends to be as close as possible. In order to achieve the expected tracking and shooting effect, the error of the motor needs to be taken into account. The error of the motor mainly comes from the inertia after completing the number of steps given by the motor driver, and the inertia will continue to move forward, and this inertia is directly related to the motor speed. Related, there may be a situation as shown in Figure 6 (assuming that the shooting target is fixed and the mobile phone is also fixed).

When the subject and the mobile terminal are both stationary, because of the inertia of the motor, it takes multiple frames to place the subject in the middle position (as shown in Figure 6, it takes 8 frames to place the subject in the middle position); if Superimposed on the movement of the subject and the movement of the mobile terminal itself, this adjustment process will be longer. Obviously, this adjustment effect is not ideal. You cannot simply operate the motor to rotate the same angle according to α, and at the same time as the motor works for a long time. Increase will cause wear and increase the above error; therefore, this error needs to be converged, which can be optimized by algorithm. For motor B, a closed-loop feedback system can be added to monitor the angle of rotation of the motor in real time.

As shown in Figure 7, if the motor keeps rotating at a constant speed, within the same time t; after the motor rotation angle reaches α, the motor driver stops output, the motor will still continue to rotate under the inertia, and it will actually turn more when it stops slowly. The angle of δ.

After the closed-loop control is added, the motor rotates at a non-uniform speed, first fast and then slow within time t. When the angle of rotation of the motor is detected close to α, the speed of motor B is also close to 0, eliminating the influence of inertia.

In addition, assuming that the frame rate of the camera is 30 frames, the time of each frame is about 33.3ms. In order to achieve the effect of tracking and shooting, the motor must meet the time of one frame (33.3ms) and be able to run the angle of α. α also needs to meet: -0.5FOV<α<0.5FOV; FOV is the field of view of the camera. Obviously, when α exceeds this range, the camera will not be able to capture the target picture in the next frame of picture and cannot track and shoot.

In the shooting method of the embodiment of the present disclosure, by rotating the viewfinder lens, when each image frame is shot, it can be ensured that the target angle between the position of the shooting object and the preset position of the image sensor is the preset angle, so as to realize the control of the shooting object. Real-time tracking.

An embodiment of the present disclosure also provides a mobile terminal, including a housing, a viewfinder lens, and an image sensor. The housing is provided with an opening, and the viewfinder lens is movably disposed on the housing to extend from the opening. The viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used to project the light that enters the viewfinder lens to all The image sensor, as shown in FIG. 8, the mobile terminal 800 further includes:

The determining module 801 is configured to determine the shooting object when detecting that the viewfinder lens extends from the housing through the opening;

The obtaining module 802 is configured to obtain a target angle between the position of the photographing object and the preset position of the image sensor within a preset period of time before the target time, and the target time is to generate each object according to the photographing object. The moment of the image frame;

The adjustment module 803 is configured to adjust the target angle to the preset angle by controlling the rotation of the viewfinder lens when the target angle is different from the preset angle;

The processing module 804 is configured to photograph the subject to generate the image frame.

Optionally, the preset time period is a time period corresponding to the shooting of one image frame.

Optionally, the mobile terminal of the embodiment of the present disclosure further includes a camera lens, the camera lens is arranged in the housing and connected to the image sensor; as shown in FIG. 9, the acquisition module 802 includes:

The first acquisition sub-module 8021 is used to acquire a first distance and a second distance; wherein, the first distance is the difference between the image formed by the subject on the image sensor and the preset position of the image sensor The second distance is the distance between the image sensor and the camera lens;

The second obtaining submodule 8022 is configured to obtain the target angle according to the first distance and the second distance.

Optionally, the mobile terminal of the embodiment of the present disclosure further includes: a motor connected to the viewfinder lens;

The adjustment module 803 includes:

The first determining submodule 8031 is configured to determine the first angle of rotation of the viewfinder lens according to the target angle and the preset angle;

The second determining sub-module 8032 is configured to determine a second angle of rotation of the motor according to the first angle;

The control sub-module 8033 is configured to control the motor to rotate the second angle within the preset time period.

In the mobile terminal of the embodiment of the present disclosure, the difference between the rotation speed of the motor at the last moment of the preset time period and zero is less than a preset threshold.

In the mobile terminal of the embodiment of the present disclosure, the preset position of the image sensor is the center position of the image sensor.

The mobile terminal of the embodiment of the present disclosure can ensure that the target angle between the position of the object and the preset position of the image sensor is the preset angle by rotating the viewfinder lens when shooting each image frame. Real-time tracking.

It should be noted that the mobile terminal is a mobile terminal corresponding to the foregoing method embodiment, and all implementation manners in the foregoing method embodiment are applicable to the embodiment of the mobile terminal, and the same technical effect can also be achieved.

FIG. 10 is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of the present disclosure. The mobile terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, and a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, a power supply 1011 and other components. Those skilled in the art can understand that the structure of the mobile terminal shown in FIG. 10 does not constitute a limitation on the terminal. The mobile terminal may include more or less components than those shown in the figure, or combine certain components, or different component arrangements. . In the embodiments of the present disclosure, mobile terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

The mobile terminal also includes a housing, a viewfinder lens, and an image sensor. The housing is provided with an opening, and the viewfinder lens is movably provided on the housing to extend or retract from the opening, and The viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used for projecting the light incident on the viewfinder lens to the image sensor.

Wherein, the processor 1010 is configured to detect that the viewfinder lens protrudes from the housing through the opening, and determine the shooting object;

The image frame is generated by shooting the subject.

It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 1001 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 1010; Uplink data is sent to the base station. Generally, the radio frequency unit 1001 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 1001 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides users with wireless broadband Internet access through the network module 1002, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 1003 can convert the audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into audio signals and output them as sounds. Moreover, the audio output unit 1003 may also provide audio output related to a specific function performed by the mobile terminal 1000 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1004 is used to receive audio or video signals. The input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frame can be displayed on the display unit 1006. The image frame processed by the graphics processor 10041 may be stored in the memory 1009 (or other storage medium) or sent via the radio frequency unit 1001 or the network module 1002. The microphone 10042 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 1001 in the case of a telephone call mode for output.

The mobile terminal 1000 also includes at least one sensor 1005, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 10061 according to the brightness of the ambient light. The proximity sensor can close the display panel 10061 and the display panel 10061 when the mobile terminal 1000 is moved to the ear. / Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 1005 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 1006 is used to display information input by the user or information provided to the user. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 1007 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the mobile terminal. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071, also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 10071 or near the touch panel 10071. operating). The touch panel 10071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, 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 then sends it The processor 1010 receives and executes the command sent by the processor 1010. In addition, the touch panel 10071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 may also include other input devices 10072. Specifically, other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 10071 can be overlaid on the display panel 10061. When the touch panel 10071 detects a touch operation on or near it, it transmits it to the processor 1010 to determine the type of the touch event, and then the processor 1010 determines the type of touch event according to the touch. The type of event provides corresponding visual output on the display panel 10061. Although in FIG. 10, the touch panel 10071 and the display panel 10061 are used as two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated The implementation of the input and output functions of the mobile terminal is not specifically limited here.

The interface unit 1008 is an interface for connecting an external device with the mobile terminal 1000. For example, the external device may include a wired or wireless headset port, an external power source (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 (input/output, I/O) port, video I/O port, headphone port, etc. The interface unit 1008 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the mobile terminal 1000 or can be used to connect to the mobile terminal 1000 and external Transfer data between devices.

The memory 1009 can be used to store software programs and various data. The memory 1009 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 1009 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, a flash memory device, or other volatile solid-state storage devices.

The processor 1010 is the control center of the mobile terminal. It uses various interfaces and lines to connect the various parts of the entire mobile terminal, runs or executes software programs and/or modules stored in the memory 1009, and calls data stored in the memory 1009 , Perform various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. The processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc. The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1010.

The mobile terminal 1000 may also include a power supply 1011 (such as a battery) for supplying power to various components. Optionally, the power supply 1011 may be logically connected to the processor 1010 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.

In addition, the mobile terminal 1000 includes some functional modules not shown, which will not be repeated here.

Optionally, an embodiment of the present disclosure further provides a mobile terminal, including a processor, a memory, and a computer program stored in the memory and running on the processor. The computer program is executed by the processor to implement the aforementioned shooting method Each process of the embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here.

The embodiments of the present disclosure also provide a computer-readable storage medium, and 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 technical effect can be achieved To avoid repetition, I won’t repeat it here. Among them, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the present disclosure.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

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

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

In addition, the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

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

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by controlling the relevant hardware through a computer program. The program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

It can be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, and sub-units can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSP Device, DSPD) ), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to implement Described functions in other electronic units or combinations thereof.

For software implementation, the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.

The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims

A photographing method applied to a mobile terminal, wherein the mobile terminal includes a housing, a viewfinder lens, and an image sensor, the housing is provided with an opening, and the viewfinder lens is movably arranged on the housing for viewing The opening is extended or retracted, and the viewfinder lens is rotatable around the axis of the opening, the image sensor is arranged inside the housing, and the viewfinder lens is used to shoot into the viewfinder lens The light is projected to the image sensor, and the shooting method includes:

When it is detected that the viewfinder lens protrudes from the housing through the opening, determining a shooting object;

Acquiring a target angle between the position of the shooting object and the preset position of the image sensor in a preset time period before the target time, where the target time is the time at which each image frame is generated according to the shooting object;

When the target angle is different from the preset angle, adjusting the target angle to the preset angle by controlling the rotation of the viewfinder lens;

The image frame is generated by shooting the subject.
The shooting method according to claim 1, wherein the preset time period is a time period corresponding to shooting one image frame.
The shooting method according to claim 1, wherein the mobile terminal further comprises a camera lens, the camera lens is arranged in the housing and connected with the image sensor;

The acquiring the target angle between the current position of the shooting object and the preset position of the image sensor includes:

Acquire a first distance and a second distance; wherein, the first distance is the distance between the image formed by the subject on the image sensor and the preset position of the image sensor, and the second distance Is the distance between the image sensor and the camera lens;

According to the first distance and the second distance, the target angle is obtained.
The shooting method according to claim 1, wherein the mobile terminal further comprises: a motor connected with the viewfinder lens;

The adjusting the target angle to the preset angle by controlling the rotation of the viewfinder lens includes:

Determine the first angle of rotation of the viewfinder lens according to the target angle and the preset angle;

Determine the second angle of rotation of the motor according to the first angle;

Controlling the motor to rotate the second angle within the preset time period.
4. The photographing method according to claim 4, wherein the difference between the rotation speed of the motor at the last moment of the preset time period and zero is less than a preset threshold.
The shooting method according to claim 1, wherein the preset position of the image sensor is a center position of the image sensor.
A mobile terminal includes a housing, a viewfinder lens, and an image sensor. The housing is provided with an opening, and the viewfinder lens is movably provided on the housing to extend or retract from the opening, and The viewfinder lens is rotatable around the axis of the opening, the image sensor is disposed inside the housing, and the viewfinder lens is used to project the light that enters the viewfinder lens onto the image sensor. The terminal also includes:

A determining module, configured to determine a shooting object when detecting that the viewfinder lens protrudes from the housing through the opening;

The acquiring module is configured to acquire the target angle between the position of the photographing object and the preset position of the image sensor within a preset time period before the target moment, and the target time is to generate each image according to the photographing object Moment of frame

An adjustment module, configured to adjust the target angle to the preset angle by controlling the rotation of the viewfinder lens when the target angle is different from the preset angle;

The processing module is configured to photograph the subject to generate the image frame.
The mobile terminal according to claim 7, wherein the preset time period is a time period corresponding to shooting one image frame.
The mobile terminal according to claim 7, further comprising a camera lens, the camera lens is arranged in the housing and connected with the image sensor;

The acquisition module includes:

The first acquisition sub-module is used to acquire a first distance and a second distance; wherein the first distance is between the image formed by the subject on the image sensor and the preset position of the image sensor The second distance is the distance between the image sensor and the camera lens;

The second obtaining submodule is configured to obtain the target angle according to the first distance and the second distance.
The mobile terminal according to claim 7, further comprising: a motor connected to the viewfinder lens;

The adjustment module includes:

A first determining submodule, configured to determine a first angle of rotation of the viewfinder lens according to the target angle and the preset angle;

A second determining submodule, configured to determine a second angle of rotation of the motor according to the first angle;

The control sub-module is configured to control the motor to rotate the second angle within the preset time period.
The mobile terminal according to claim 10, wherein the difference between the rotation speed of the motor at the last moment of the preset time period and zero is less than a preset threshold.
The mobile terminal according to claim 7, wherein the preset position of the image sensor is a center position of the image sensor.
A mobile terminal comprising a processor, a memory, and a computer program stored on the memory and capable of running on the processor. The computer program is executed by the processor to implement any of claims 1 to 6 One of the steps of the shooting method.
A computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the photographing method according to any one of claims 1 to 6 are realized.