WO2019179413A1

WO2019179413A1 - Depth-of-field image generating method and mobile terminal

Info

Publication number: WO2019179413A1
Application number: PCT/CN2019/078635
Authority: WO
Inventors: 王鹏; 黎冠英
Original assignee: 维沃移动通信有限公司
Priority date: 2018-03-21
Filing date: 2019-03-19
Publication date: 2019-09-26
Also published as: CN108259727A

Abstract

Provided in the present disclosure are a depth-of-field image generating method and a mobile terminal, the mobile terminal comprising a lens, an imaging chip, and a motor, and the method comprising: controlling the motor to drive the lens to move in a target plane, the target plane being parallel to the photosensitive surface of the imaging chip; when the lens is positioned in each target position in the target plane, acquiring a target image collected by the imaging chip in each target position, there being at least two target positions; and obtaining a depth-of-field image on the basis of the target images.

Description

Depth of field image generation method and mobile terminal

Cross-reference to related applications

The present application claims the priority of the Chinese Patent Application No. 20110123419, the entire disclosure of which is incorporated herein by reference.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a depth of field image generating method and a mobile terminal.

Background technique

With the application of the camera on the mobile terminal, after the human being meets the basic functional requirements of the smart product, the experience of the electronic consumer product is also required to be higher and higher, especially the photographing demand; not only requires clearer and richer, but also has more A good visual experience, with the background blur effect of the SLR camera. Professional cameras can achieve different depth of field effects by adjusting the aperture size. When shooting macros and portraits, the subject can be highlighted from the background to form a good visual effect. However, as a mobile terminal of a portable device, it is apparent that there is not enough space to satisfy the aperture conversion like a professional camera lens, and a fixed aperture cannot achieve a specific depth of field conversion.

In the mobile terminal in the related art, in order to obtain a depth of field image, a dual camera is usually provided in the mobile terminal or a dual-pixel autofocus sensor is provided in the single camera. In this way, the cost of the mobile terminal will be higher.

Summary of the invention

Embodiments of the present disclosure provide a depth of field image generation method and a mobile terminal to solve the problem of high cost of the mobile terminal.

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

In a first aspect, an embodiment of the present disclosure provides a method for generating a depth of field image, which is applied to a mobile terminal, where the mobile terminal includes a lens, an image chip, and a motor, and the method includes:

Controlling the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

Obtaining, at each target position in the target plane, the target image acquired by the image chip at each of the target positions, where the target position is at least two;

A depth of field image is obtained based on the target image.

In a second aspect, an embodiment of the present disclosure further provides a mobile terminal, where the mobile terminal includes a lens, an image chip, and a motor, and the mobile terminal further includes:

a control module, configured to control the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

An acquiring module, configured to acquire, at each target position in the target plane, a target image acquired by the image chip at each of the target locations, where the target position is at least two;

And a processing module, configured to obtain a depth image according to the target image.

In an embodiment of the present disclosure, controlling the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip; when the lens is located at each target position in the target plane And acquiring, by the image chip, a target image acquired at each of the target locations, where the target location is at least two; and obtaining a depth of field image according to the target image. Since the lens is moved by the motor and the image taken at at least two different positions is captured, a depth of field image is obtained. In this way, it is not necessary to provide a dual camera or a single camera in the mobile terminal to set a dual pixel auto focus sensor, thereby reducing the cost of the mobile terminal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments of the present disclosure will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

FIG. 1 is a flowchart of a depth image generation method according to an embodiment of the present disclosure;

2 is an exploded structural diagram of an OIS module applied to a depth image generation method according to an embodiment of the present disclosure;

3 is a structural diagram of a motor in an OIS module to which a depth image generation method according to an embodiment of the present disclosure is applied;

4 is a positional display diagram of a lens in an OIS module applied to a depth image generation method according to an embodiment of the present disclosure;

5 is a second position display diagram of a lens in an OIS module applied to a depth image generation method according to an embodiment of the present disclosure;

6 is a third position display diagram of a lens in an OIS module applied to a depth image generation method according to an embodiment of the present disclosure;

7 is a fourth position display diagram of a lens in an OIS module applied to a depth image generation method according to an embodiment of the present disclosure;

FIG. 8 is a fifth diagram of a position display diagram of a lens in an OIS module applied to a depth image generation method according to an embodiment of the present disclosure; FIG.

FIG. 9 is a structural diagram of a mobile terminal according to an embodiment of the present disclosure;

FIG. 10 is a second structural diagram of a mobile terminal according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

Referring to FIG. 1 , FIG. 1 is a flowchart of a method for generating a depth of field image according to an embodiment of the present disclosure. The method for generating a depth of field image is applied to a mobile terminal for controlling generation of a depth of field image. Specifically, as shown in FIG. 2, the mobile terminal includes an OIS module, and the OIS module includes a lens 201, a motor 202, a filter 203, a bracket 204, an image chip 205, a circuit board 206, a connector 207, and a resistor and capacitor. 208 and driver IC 209 (Integrated Circuit). As shown in FIG. 1, the depth of field image generation method includes the following steps:

Step 101, controlling the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

In this step, the depth of field image may be generated in an application scenario such as taking a picture or capturing a video. For example, when the camera takes a photo, if the mobile terminal receives the camera instruction, the depth of field image may be generated first, and then the generated depth image is used as a late stage. Image blurring. When a video is captured, if the mobile terminal receives a video capture command, a depth of field image can be generated, and then the generated depth image is subjected to post-3D or image blurring processing. Specifically, the process of generating a late 3D or image blurring process according to the depth of field image is not further limited herein.

In this embodiment, the processor of the mobile terminal may output a control signal to control the motor to drive the lens to move in the target plane. Specifically, the processor may output a control signal to the driving IC 209 when receiving the photographing instruction or the video capturing instruction, and control the operation of the motor 202 through the driving IC 209 to drive the lens 201 to move in the target plane. As shown in FIG. 3, the motor 202 can drive the lens 201 to move in a target plane (XY plane) formed by the X-axis and the Y-axis.

Step 102: Acquire a target image acquired by the image chip at each of the target locations when the lens is located at each target position in the target plane, where the target location is at least two;

It should be understood that the specific position and the number of the above-mentioned target positions may be set according to actual needs. For example, in the embodiment, the target position includes the first position and the first obtained after the lens 201 moves in the first axial direction. a second position; or, the target position includes a first position and a second position obtained by moving the lens 201 in the first axial direction, and a third position and a fourth obtained after moving in the second axial direction position. Wherein, the first axial direction may be an axial direction of the X axis, and the second axial direction may be an axial direction of the Y axis, and of course may be other axial directions, for example, may be rotated clockwise or counterclockwise with respect to the X axis. The rear axial direction is not limited to one step here. In this embodiment, since the control lens 201 is moved in the plane in the axial direction to obtain two or four target positions, the movement realization manner is simple, and the difficulty in generating the depth of field image can be reduced.

It should be noted that the specific positions of the first position, the second position, the third position, and the fourth position may be set according to actual needs. For example, in the embodiment, the first position and the second position are the lens. The first axially movable region is centrally symmetrically disposed, and the third and fourth positions are centrally symmetrically disposed in the second axially movable region of the lens. Further, in order to obtain a better depth image and avoid shallower and inaccurate depth information, the distance between the first position and the second position may be maximized, and the distance between the third position and the fourth position may be maximized. That is, in the embodiment, the first position and the second position are extreme positions at which the lens is movable in the first axial direction; the third position and the fourth position are The limit position that can be moved in two axial directions. Specifically, the process in which the motor 202 can drive the lens 201 to move in the target plane is not further limited herein, which will be described in detail below.

As shown in FIG. 4, the movable area of the lens 201 is the area 401. In the case where the uncontrolled lens 201 is moved, the lens 201 is at the center of the area 401, which is the origin of the X-axis and the Y-axis. The direction in which the first axial direction is the X-axis direction and the second axial direction is the Y-axis direction will be described as an example. Specifically, if the target position is two, the lens 201 can be driven by the motor 202 to move in the negative direction of the X-axis, thereby reaching the boundary of the region 401, and the lens 201 is in the first position (as shown in FIG. 5); The lens 201 is driven by the motor 202 to move in the positive direction of the X-axis to reach the boundary of the region 401, at which time the lens 201 is in the second position (as shown in FIG. 6). If the target position is four, after moving to the first position and the second position respectively, the lens 201 can be driven to return to the origin by the motor 202, and then the lens 201 is driven by the motor 202 to move in the negative direction of the Y-axis, thereby reaching the area 401. The boundary of the lens 201 is at the third position (as shown in Figure 7). The lens 201 is then driven by the motor 202 to move in the positive direction of the Y-axis to reach the boundary of the region 401, at which time the lens 201 is in the fourth position (as shown in Fig. 8).

Since in the present embodiment, the first position and the second position are set as the limit positions of the first axial movement, the center distance between the first position and the second position is large, and the generated depth image is blurred. better. In addition, taking pictures at the first position, the second position, the third position, and the fourth position at the same time, the object to be photographed can be positioned to achieve a 3D effect. Specifically, the OIS motor in the related art is adopted, wherein the displacement between the first position and the second position can reach 0.5 mm, and the center distance of the photograph is much larger than the Dual pixel, which can be used for the depth of field application, and the effect is more than that of the Dual pixel. it is good.

Step 103: Obtain a depth of field image according to the target image.

In this embodiment, digital signal processing (DSP) can be performed on the target image to obtain a depth of field image. Specifically, by calculating a disparity map (ie, a disparity map) of the difference between the two target images, the disparity map represents the displacement difference of the same point of the two images, but due to the displacement difference in the triangulation It is proportional to the target distance (the distance between the subject and the lens), so the disparity map is often used directly as a depth of field map. Most of the time, this graph is stored in the form of a grayscale image.

In an embodiment of the present disclosure, controlling the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip; when the lens is located at each target position in the target plane And acquiring, by the image chip, a target image acquired at each of the target locations, where the target location is at least two; and obtaining a depth of field image according to the target image. A depth of field image is obtained by driving the lens through the motor and taking an image taken at at least two different positions. In this way, it is not necessary to provide a dual camera or a single camera in the mobile terminal to set a dual pixel auto focus sensor, thereby reducing the cost of the mobile terminal.

It should be noted that the structure of the above-mentioned motor 202 can be set according to actual needs. For example, in the embodiment, the motor 202 can adopt an optical image stabilizer (OIS) motor in the related art. Specifically, the OIS motor includes an AF direction coil, two oppositely disposed first magnets, and two oppositely disposed second magnets. Wherein the first magnet is for controlling movement of the lens in a first direction of the target plane; the second magnet is for controlling movement of the lens in a second direction of the target plane, the second direction is The first direction is vertical, and the AF direction coil is used to control the lens to move in a third direction perpendicular to the target plane to perform AF focusing. The AF direction is the Z-axis direction and is perpendicular to the target plane.

The first direction is a direction of the X axis, and the second direction is a direction of the Y axis.

Based on the above-described scheme, the motor 202 may be an OIS motor or a motor with a structural improvement of the OIS motor as long as the control lens 201 can be moved in the target plane. In the present embodiment, the structure of the motor 202 adopts the following four cases.

In the first case, the motor 202 is an OIS motor, that is, the motor 202 includes an AF direction coil, two oppositely disposed first magnets, and two oppositely disposed second magnets. Since the OIS motor in the related art is adopted, there is no need to improve the structure of the mobile terminal itself, and the scope of application is wide.

The second case: the motor 202 is an OIS motor that removes the second magnet, that is, the motor 202 includes an AF direction coil and two oppositely disposed first magnets. Since the design of the second magnet is removed, the volume of the motor 202 can be reduced while the cost of the mobile terminal can be further reduced.

In the third case, the motor 202 is an OIS motor that removes the AF direction coil, that is, the motor 202 includes two oppositely disposed first magnets and two oppositely disposed second magnets. Since the design of the AF direction coil is removed, the volume of the motor 202 can be reduced, and the cost of the mobile terminal can be further reduced.

In the fourth case, the motor 202 is an OIS motor that removes the AF direction coil and the second magnet, that is, the motor 202 includes two oppositely disposed first magnets. Since the design of the AF direction coil and the second magnet is removed, the volume of the motor 202 can be reduced, and the cost of the mobile terminal can be further reduced.

It should be noted that the various optional embodiments described in the embodiments of the present disclosure may be implemented in combination with each other, or may be implemented separately, and the embodiments of the present disclosure are not limited thereto.

Referring to FIG. 9, FIG. 9 is a structural diagram of a mobile terminal according to an embodiment of the present disclosure. The mobile terminal provided by the embodiment of the present disclosure includes a lens, an image chip, and a motor. As shown in FIG. 9, the mobile terminal further includes:

a control module 901, configured to control the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

The acquiring module 902 is configured to acquire, when the lens is located at each target position in the target plane, a target image acquired by the image chip at each of the target locations, where the target location is at least two;

The processing module 903 is configured to obtain a depth image according to the target image.

Optionally, the target position includes a first position and a second position obtained after the lens is moved in the first axial direction; or the target position includes the lens after moving in the first axial direction The obtained first position and second position, and the third position and the fourth position obtained after moving in the second axial direction.

Optionally, the first position and the second position are limit positions in which the lens is movable in a first axial direction; the third position and the fourth position are that the lens is movable in a second axial direction The extreme position.

Optionally, the first axial direction is perpendicular to the second axial direction.

Optionally, the motor includes two opposite first magnets, and the first magnet is configured to control movement of the lens in a first direction of the target plane.

Optionally, the motor further includes an AF direction coil and/or two oppositely disposed second magnets, wherein the second magnet is configured to control movement of the lens in a second direction of the target plane, the second The direction is perpendicular to the first direction, and the AF direction coil is used to control the lens to move in a third direction perpendicular to the target plane for AF focusing.

The mobile terminal provided by the embodiment of the present disclosure can implement various processes implemented by the mobile terminal in the method embodiment of FIG. 1 to FIG. 8. To avoid repetition, details are not described herein again. Since the lens is moved by the motor and the image taken at at least two different positions is captured, a depth of field image is obtained. In this way, it is not necessary to provide a dual camera or a single camera in the mobile terminal to set a dual pixel auto focus sensor, thereby reducing the cost of the mobile terminal.

FIG. 10 is a schematic diagram of a hardware structure of a mobile terminal that implements 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, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply. 1011, lens, video chip, and motor components. It will be understood by those skilled in the art that the mobile terminal structure shown in FIG. 10 does not constitute a limitation of the mobile terminal, and the mobile terminal may include more or less components than those illustrated, or combine some components, or different components. Arrangement. In the embodiments of the present disclosure, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle terminal, a wearable device, a pedometer, and the like.

The processor 1010 is configured to control the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip; and each target in the target plane of the lens In the position, the target image acquired by the image chip at each of the target positions is acquired, and the target position is at least two; and the depth image is obtained according to the target image.

It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 1001 can be used for receiving and transmitting signals during and after receiving or transmitting information or a call, and specifically, after receiving downlink data from the base station, processing the processor 1010; The uplink data is sent to the base station. In general, 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 unit 1001 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides wireless broadband Internet access to the user through the network module 1002, such as helping the user 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 an audio signal and output as a sound. Moreover, the audio output unit 1003 may also provide audio output (eg, call signal reception sound, message reception sound, etc.) related to a specific function performed by the mobile terminal 1000. The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1004 is for receiving an audio or video signal. The input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 images an still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The data is processed. The processed image frame can be displayed on the display unit 1006. The image frames processed by the graphics processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. The microphone 10042 can receive sound and can process such sound as audio data. The processed audio data can be converted to a format output that can be transmitted to the mobile communication base station via the radio unit 1001 in the case of a telephone call mode.

The mobile terminal 1000 also includes at least one type of sensor 1005, such as a light sensor, 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 10061 according to the brightness of the ambient light, and the proximity sensor can close the display panel 10061 when the mobile terminal 1000 moves to the ear. / or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the attitude of the mobile terminal (such as horizontal and vertical screen switching, related games). , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; sensor 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, Infrared sensors and the like are not described here.

The display unit 1006 is for displaying information input by the user or information provided to the user. The display unit 1006 can include a display panel 10061. The display panel 10061 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 1007 can be configured to receive input numeric or character information and to generate key signal inputs 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 referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 10071 or near the touch panel 10071. operating). The touch panel 10071 may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a 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 the touch information into contact coordinates, and sends the touch information. The processor 1010 receives the commands from the processor 1010 and executes them. In addition, the touch panel 10071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 10071, the user input unit 1007 may also include other input devices 10072. Specifically, the other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 10071 can be overlaid on the display panel 10061. After the touch panel 10071 detects a touch operation thereon or nearby, the touch panel 10071 transmits to the processor 1010 to determine the type of the touch event, and then the processor 1010 according to the touch. The type of event provides a corresponding visual output on display panel 10061. Although 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 FIG. 10, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated. The input and output functions of the mobile terminal are implemented, and are not limited herein.

The interface unit 1008 is an interface in which an external device is connected to the mobile terminal 1000. For example, the 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 having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more. The interface unit 1008 can be configured to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within the mobile terminal 1000 or can be used at the mobile terminal 1000 and externally Data is transferred between devices.

The memory 1009 can be used to store software programs as well as various data. The memory 1009 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Further, the memory 1009 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1010 is a control center of the mobile terminal that connects various portions of the entire mobile terminal using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 1009, and recalling data stored in the memory 1009. The mobile terminal performs various functions and processing data to perform overall monitoring on the mobile terminal. The processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application, etc., and a modulation solution The processor mainly handles wireless communication. It will be appreciated that the above described modem processor may also not be integrated into the processor 1010.

The mobile terminal 1000 may further include a power source 1011 (such as a battery) for supplying power to various components. Alternatively, the power source 1011 may be logically connected to the processor 1010 through a power management system 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, and details are not described herein again.

Optionally, an embodiment of the present disclosure further provides a mobile terminal, including a processor 1010, a memory 1009, a computer program stored on the memory 1009 and executable on the processor 1010, and the computer program is executed by the processor 1010. The various processes of the foregoing method for generating the depth of field image are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

The embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, implements various processes of the foregoing depth image generation method embodiment, and can achieve the same Technical effects, to avoid repetition, will not be repeated here. The computer readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.

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

The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the disclosure. It should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosure should be determined by the scope of the claims.

Claims

A depth of field image generating method is applied to a mobile terminal, the mobile terminal comprising a lens, an image chip and a motor, the method comprising:

Controlling the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

Obtaining, at each target position in the target plane, the target image acquired by the image chip at each of the target positions, where the target position is at least two;

A depth of field image is obtained based on the target image.
The method of claim 1, wherein the target position comprises a first position and a second position obtained after the lens is moved in a first axial direction; or the target position comprises the lens in the a first position and a second position obtained after the first axial movement, and a third position and a fourth position obtained after moving in the second axial direction.
The method of claim 2, wherein the first position and the second position are extreme positions at which the lens is movable in a first axial direction; the third position and the fourth position are The second axially movable limit position.
The method of claim 2 wherein said first axial direction is perpendicular to said second axial direction.
The method of claim 1 wherein said motor includes two opposing first magnets for controlling movement of said lens in a first direction of said target plane.
The method according to claim 5, wherein said motor further comprises an AF direction coil and/or two oppositely disposed second magnets, said second magnet for controlling said lens in a second direction of said target plane Moving upward, the second direction is perpendicular to the first direction, and the AF direction coil is used to control the lens to move in a third direction perpendicular to the target plane for AF focusing.
A mobile terminal includes a lens, an image chip, and a motor, wherein the mobile terminal further includes:

a control module, configured to control the motor to drive the lens to move in a target plane, the target plane being parallel to a photosensitive surface of the image chip;

An acquiring module, configured to acquire, at each target position in the target plane, a target image acquired by the image chip at each of the target locations, where the target position is at least two;

And a processing module, configured to obtain a depth image according to the target image.
The mobile terminal of claim 7, wherein the target position comprises a first position and a second position obtained after the lens is moved in the first axial direction; or the target position comprises the lens in the The first position and the second position obtained after the first axial movement are performed, and the third position and the fourth position obtained after moving in the second axial direction.
The mobile terminal of claim 8, wherein the first position and the second position are extreme positions at which the lens is movable in a first axial direction; the third position and the fourth position are the lens An extreme position that is movable in the second axial direction.
The mobile terminal of claim 8, wherein the first axial direction is perpendicular to the second axial direction.
The mobile terminal of claim 7, wherein the motor comprises two oppositely disposed first magnets for controlling movement of the lens in a first direction of the target plane.
The mobile terminal of claim 11, wherein the motor further comprises an AF direction coil and/or two oppositely disposed second magnets, the second magnet for controlling the second lens of the lens in the target plane Moving in a direction, the second direction is perpendicular to the first direction, and the AF direction coil is used to control the lens to move in a third direction perpendicular to the target plane for AF focusing.
A mobile terminal comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being executed by the processor to implement any of claims 1 to 6 A step of the depth of field image generation method described.
A computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the steps of the depth of field image generating method of any one of claims 1-6.