WO2019137535A1

WO2019137535A1 - Object distance measurement method and terminal device

Info

Publication number: WO2019137535A1
Application number: PCT/CN2019/071635
Authority: WO
Inventors: 周燎
Original assignee: 维沃移动通信有限公司
Priority date: 2018-01-15
Filing date: 2019-01-14
Publication date: 2019-07-18
Also published as: CN108317992A

Abstract

Embodiments of the present invention relate to the technical field of communications, and provide an object distance measurement method and a terminal device. The specific solution comprises: obtaining a first image acquired by an optical lens of a terminal device at a first position; obtaining, in the case that the optical lens is moved from the first position to a second position, a second image acquired by the optical lens at the second position; obtaining a first distance between the first position and the second position; obtaining a first difference; and determining a target object distance according to the first distance, the focal length of the optical lens, and the first difference, wherein the first difference is a difference between a position coordinate of a first pixel in the first image and a position coordinate of a second pixel in the second image in the case that the first image and the second image are on one plane. In the embodiments of the present invention, an object distance is obtained by a single camera, so that the camera costs can be reduced.

Description

Object distance measurement method and terminal equipment

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201810036578.0, filed on Jan. 15, 2018, the entire disclosure of which is incorporated herein by reference. In the application.

Technical field

The embodiments of the present disclosure relate to the field of communications technologies, and in particular, to an object distance measuring method and a terminal device.

Background technique

With the development of the terminal technology, the camera function of the terminal device is also continuously enhanced, for example, the camera's ranging, background blur, and the like in the terminal device.

At present, by installing two cameras on the terminal device, the depth information of the object to be photographed (ie, the spatial distance between the object to be photographed and the lens of the camera) can be acquired, thereby realizing functions such as ranging and background blurring of the terminal device. Specifically, the terminal device acquires image information of the captured object on the lens of the camera by using each of the two cameras, and calculates a difference between the acquired two image information, and then obtains a difference according to the difference. The depth information of the subject being shot.

However, in the above method, since the terminal device uses two cameras while acquiring the depth information of the object to be photographed, the cost is high.

Summary of the invention

In a first aspect, an embodiment of the present disclosure provides an object distance measuring method, which is applied to a terminal device, where the object distance measuring method includes: acquiring a first image acquired by an optical lens of a terminal device at a first position; Acquiring a second image acquired by the optical lens at the second position when the position is moved to the second position; acquiring a first distance between the first position and the second position; acquiring the first difference; according to the first distance, optical a focal length of the lens and a first difference, determining a target object distance; wherein the first difference is a position coordinate of the first pixel in the first image in a case where the first image and the second image are on the same plane a difference between position coordinates of the second pixel in the second image; a pixel point at which the second pixel is at a relative position to the first pixel.

In a second aspect, an embodiment of the present disclosure provides a terminal device, where the terminal device includes: an obtaining unit and a determining unit. The acquiring unit is configured to acquire a first image acquired by the optical lens of the terminal device at the first position. The acquiring unit is further configured to acquire the second image acquired by the optical lens at the second position in a case where the optical lens is moved from the first position to the second position. The acquiring unit is further configured to acquire a first distance between the first location and the second location. The obtaining unit is further configured to acquire the first difference. a determining unit, configured to determine a target object distance according to the first distance, the focal length of the optical lens, and the first difference. Wherein the first difference is between the position coordinates of the first pixel in the first image and the position coordinates of the second pixel in the second image in a case where the first image and the second image are located on the same plane The difference between the second pixel and the first pixel is a pixel position.

In a third aspect, an embodiment of the present disclosure provides a terminal device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is executed by the processor The steps of the object distance measuring method as described in the above first aspect.

In a fourth aspect, an embodiment of the present disclosure provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the object distance measuring method according to the first aspect described above. step.

DRAWINGS

FIG. 1 is a schematic structural diagram of an Android operating system according to an embodiment of the present disclosure;

FIG. 2 is a flowchart of a method for measuring an object distance according to an embodiment of the present disclosure;

FIG. 3 is a second flowchart of a method for measuring an object distance according to an embodiment of the present disclosure;

4 is a third flowchart of a method for measuring an object distance according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a space coordinate system according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an example of acquiring a first difference according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a position example of a first image and a second image according to an embodiment of the present disclosure;

FIG. 8 is a second schematic diagram of a position example of a first image and a second image according to an embodiment of the present disclosure;

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

FIG. 10 is a schematic structural diagram of hardware of a terminal device according to an embodiment of the present disclosure.

Detailed ways

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.

The terms "first" and "second" and the like in the specification and claims of the embodiments of the present disclosure are used to distinguish different objects, and are not intended to describe a specific order of the objects. For example, the first location and the second location, etc., are used to distinguish different locations, rather than to describe a particular order of locations. In the description of the embodiments of the present disclosure, the meaning of "a plurality" means two or more unless otherwise indicated.

The term "and/or" in this context is an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately. These three situations. The symbol "/" in this document indicates that the associated object is an OR relationship, for example, A/B represents A or B.

In the embodiments of the present disclosure, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the disclosed embodiments should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.

The following describes the object distance measuring method and some concepts involved in the terminal device provided by the embodiments of the present disclosure.

“First difference” refers to the difference between the position coordinates of two pixels in the relative positions of the two images obtained when the camera (the camera includes the optical lens and the image sensor) photographs the same subject at two different positions. value. For example, the difference between the position coordinates of the first pixel point in the first image and the position coordinates of the second pixel point in the second image in the embodiment of the present disclosure.

"The focal length of an optical lens" refers to the distance between an optical lens and an image sensor.

“Material distance” refers to the distance between the optical lens and the subject.

Embodiments of the present disclosure provide an object distance measuring method and a terminal device, which can be applied to a process in which a terminal device acquires a object distance. Specifically, it can be applied to the process that the terminal device obtains the object distance through the single camera, and can solve the problem in the prior art that the terminal device uses multiple cameras when acquiring the depth information of the object to be photographed, resulting in high cost. problem.

The terminal device in the embodiment of the present disclosure may be a terminal device having an operating system. The operating system may be an Android (Android) operating system, and may be an iOS operating system, and may also be other possible operating systems, which are not specifically limited in this embodiment.

The following uses the Android operating system as an example to introduce the software environment to which the object distance measuring method provided by the embodiment of the present disclosure is applied.

FIG. 1 is a schematic structural diagram of a possible Android operating system provided by an embodiment of the present disclosure. In Figure 1, the architecture of the Android operating system includes four layers: the application layer, the application framework layer, the system runtime layer, and the kernel layer (specifically, the Linux kernel layer).

The application layer includes various applications (including system applications and third-party applications) in the Android operating system.

The application framework layer is the framework of the application, developers can develop some applications based on the application framework layer, while adhering to the development principles of the application framework.

The system runtime layer includes libraries (also known as system libraries) and the Android operating system runtime environment. The library mainly provides the various resources required by the Android operating system. The Android operating system runtime environment is used to provide a software environment for the Android operating system.

The kernel layer is the operating system layer of the Android operating system and belongs to the lowest level of the Android operating system software layer. The kernel layer provides core system services and hardware-related drivers for the Android operating system based on the Linux kernel.

Taking the Android operating system as an example, in the embodiment of the present disclosure, the developer can develop a software program for implementing the object distance measuring method provided by the embodiment of the present disclosure based on the system architecture of the Android operating system shown in FIG. The object distance measurement method can be based on the Android operating system shown in FIG. That is, the processor or the terminal device can implement the object distance measuring method provided by the embodiment of the present disclosure by running the software program in the Android operating system.

In a first embodiment of the present disclosure, FIG. 2 illustrates an object distance measuring method provided by an embodiment of the present disclosure, and the method can be applied to a terminal device having an Android operating system as shown in FIG. 1. As shown in FIG. 2, the object distance measuring method includes steps 201-205:

Step 201: The terminal device acquires a first image acquired by the optical lens of the terminal device at the first position.

In the embodiment of the present disclosure, the terminal device may determine the first location when receiving the input of the user, and acquire the first image of the first location through the optical lens. The input is used to trigger an optical lens of the terminal device to acquire an image, where the first image is an image acquired when the optical lens is in the first position.

In the embodiment of the present disclosure, after the user opens the camera of the terminal device, the user may input on the current interface of the terminal device to trigger the optical lens of the terminal device to acquire the first image.

Exemplarily, the user may perform a first input on the shooting icon on the current interface after the camera is turned on, so that the optical lens of the terminal device captures the shooting object, and the shooting object is in the first position of the optical lens in the terminal device. The image is the first image.

Optionally, in the embodiment of the present disclosure, the input may be a click/press operation of the user on the terminal device, and the click operation may be a click, a double click, or a continuous click on a preset number of operations.

It can be understood that the user can also input the shortcut image, the preset button or the preset button combination in the terminal device to trigger the optical lens of the terminal device to acquire the first image.

Optionally, in the embodiment of the present disclosure, the first position may be an initial position of the optical lens. Specifically, in conjunction with FIG. 2, as shown in FIG. 3, before the step 201, the object distance measuring method provided by the embodiment of the present disclosure further includes step 301:

Step 301: The terminal device determines an initial position of the optical lens as the first position.

Optionally, in the embodiment of the present disclosure, the first position may be a position after the optical lens is controlled to move from the initial position along the second predetermined direction. Specifically, in conjunction with FIG. 2, as shown in FIG. 4, before the step 201, the object distance measuring method provided by the embodiment of the present disclosure further includes step 302:

Step 302: The terminal device controls the optical lens to move from the initial position of the optical lens to the first position along a second preset direction of the plane of the optical lens.

Exemplarily, the terminal device can control the optical lens to move from the initial position along the second preset direction to the first position through an Optical Image Stabilization (OIS) device in the terminal device.

Optionally, in the embodiment of the present disclosure, the second preset direction includes at least one of a first direction and a second direction, the first direction is an X-axis direction, and the second direction is a Y-axis direction.

Illustratively, as shown in FIG. 5, a spatial coordinate system is provided in an embodiment of the present disclosure. The optical lens 1 is at a position a in the spatial coordinate system as shown in FIG. 5, the plane in which the optical lens is located is a plane composed of the X-axis and the Y-axis, and the point P is a subject. The terminal device can control the optical lens 1 to move from the position a along the X axis in the space to the first position through the OIS device; or, the terminal device can control the optical lens 1 to move from the position a along the Y axis in the space to the O through the OIS device to The first position; alternatively, the terminal device can control the optical lens 1 to move from the position a along the X-axis and the Y-axis in the space to the first position through the OIS device.

Step 202: In a case where the optical lens moves from the first position to the second position, the terminal device acquires the second image acquired by the optical lens at the second position.

In the embodiment of the present disclosure, the terminal device determines the second position when detecting that the optical lens moves from the first position to the second position, and acquires the second image of the second position through the optical lens.

Optionally, in the embodiment of the present disclosure, in a case where the first position is an initial position of the optical lens, the second position may be a position after the optical lens is controlled to move from the initial position along the first preset direction. Correspondingly, in conjunction with FIG. 2, as shown in FIG. 3, before the step 202, the object distance measuring method provided by the embodiment of the present disclosure further includes step 303:

Step 303: The terminal device controls the optical lens to move from the initial position to the second position along a first preset direction of the plane of the optical lens.

Illustratively, the terminal device can control the optical lens to move from the initial position along the first predetermined direction to the second position by the OIS device.

Optionally, in the embodiment of the present disclosure, the first preset direction includes at least one of a first direction and a second direction, the first direction is an X-axis direction, and the second direction is a Y-axis direction.

Exemplarily, referring to the spatial coordinate system shown in FIG. 5, the terminal device can control the optical lens 1 to move from the position a along the X axis in the space to the second position; or, the terminal device can control the optical lens 1 from the position a The Y-axis in the space is moved to the second position; alternatively, the terminal device can control the optical lens to move from the position a along the X-axis and the Y-axis in the space to the second position through the OIS device.

For example, the first position is the initial position of the optical lens, and the spatial coordinate of the initial position is (0, 0, 0). The terminal device can control the optical lens to move from (0, 0, 0) along the X axis in the space to the second position (3, 0, 0); or, the terminal device can control the optical lens from (0, 0, 0) Moving along the Y axis in space to the second position (0, 4, 0); alternatively, the terminal device can control the optical lens to move from (0, 0, 0) along the X and Y axes in space to the second Location (3, 4, 0).

Optionally, in the embodiment of the present disclosure, in a case where the first position is a position for controlling the optical lens to move from the initial position along the second preset direction, the second position may be to control the optical lens from the first position. The position after the third preset direction is moved. Correspondingly, in conjunction with FIG. 2, as shown in FIG. 4, before the step 202, the object distance measuring method provided by the embodiment of the present disclosure further includes step 304:

Step 304: The terminal device controls the optical lens to move from the first position to the second position along a third preset direction of the plane of the optical lens.

The second preset direction is different from the third preset direction.

Optionally, in the embodiment of the present disclosure, the second preset direction includes at least one of a first direction and a second direction, the first direction is an X-axis direction, the second direction is a Y-axis direction, and the third preset direction is At least one of the first direction and the second direction is included.

Optionally, in the embodiment of the disclosure, the second preset direction and the third preset direction are opposite.

Exemplarily, referring to the spatial coordinate system shown in FIG. 5, the terminal device can control the optical lens 1 to move from the position a along the X axis in the space to the first position, and the optical lens from the first position along the space. The X axis moves to the second position; alternatively, the terminal device can control the optical lens 1 to move from the position a along the Y axis in the space to the first position, and move the optical lens from the first position along the Y axis in the space to a second position; or, the terminal device can control the optical lens to move from the position a along the X-axis and the Y-axis in the space to the first position, and the optical lens from the first position along the X-axis and the Y-axis in the space Move to the second position.

For example, assume that the position a of the optical lens is the initial position, and the spatial coordinate of the initial position is (0, 0, 0). The terminal device can control the optical lens to move from (0, 0, 0) along the X axis in the space to the first position (3, 0, 0), and the optical lens is moved from the first position (3, 0, 0) The X axis in the space moves to the second position (-3, 0, 0); or, the terminal device can control the optical lens to move from (0, 0, 0) along the Y axis in the space to the first position (0 , 4, 0), and move the optical lens from the first position (0, 4, 0) along the Y axis in space to the second position (0, -4, 0); or, the terminal device can control the optical lens Move from (0,0,0) along the X and Y axes in space to the first position (3,4,0) and move the optical lens from the first position (3,4,0) along the space The Y axis moves to the second position (-3, -4, 0).

Step 203: The terminal device acquires a first distance between the first location and the second location.

Exemplarily, after determining the first position and the second position of the optical lens, the terminal device may calculate the first distance ΔX according to the first position and the second position.

For example, assume that the spatial coordinate of the first position is (3, 0, 0) and the spatial coordinate of the second position is (-3, 0, 0). The terminal device calculates a first distance ΔX=6 based on (3, 0, 0) and (-3, 0, 0).

Step 204: The terminal device acquires the first difference.

Wherein the first difference is between the position coordinates of the first pixel in the first image and the position coordinates of the second pixel in the second image in a case where the first image and the second image are located on the same plane The difference between the second pixel and the first pixel is a pixel position.

Exemplarily, as shown in FIG. 6, if O1 is the first position where the optical lens is located, O2 is the second position where the optical lens is located, and the first distance is ΔX, assuming that the object viewed by the camera is P point, the P point The spatial coordinates are expressed as P(x _c , y _c , z _c ), and z _c can generally be regarded as the object distance of the P point, denoted by Z. The first image acquired when O1 is in the first position is P1, the position coordinate of the pixel point of P1 is P ₁ (x ₁ , y ₁ ), and the second image acquired when O2 is in the second position is P2, and P1 The position coordinates of the pixel points of the opposite positions P2 are P ₂ (x ₂ , y ₁ ); the terminal device can calculate the position coordinates P ₁ (x ₁ , y ₁ ) of the pixel points and the position coordinates P ₂ (x of the pixel points). The difference between the position coordinates of ₂ , y ₁ ), that is, the difference |x ₂ -x ₁ |=d between x ₁ and x ₂ , obtains the first difference d.

It can be understood that, in the embodiment of the present disclosure, before acquiring the first difference, the terminal device may perform compensation correction processing on the first image and the second image, such as image distortion, angle adjustment, etc., so that the first image and the first image The two images are aligned on the spatial Y-axis (and/or the X-axis) (ie, the first image and the second image are on the same plane).

Step 205: The terminal device determines the target object distance according to the first distance, the focal length of the optical lens, and the first difference.

In the embodiment of the present disclosure, the terminal device may determine the target object distance according to the first distance, the focal length of the optical lens, and the first difference according to a preset formula.

Exemplarily, the preset formula adopted by the terminal device is

As shown in FIG. 7 , Z is the target distance, P is the photographing object, the first image acquired when O1 is in the first position is P1, the second image acquired when O2 is in the second position is P2, and B is O1 and O2. The distance between them, d is the first difference, and f is the focal length of the optical lens. According to the triangle similarity principle, you can get

And calculate the formula one:

Moreover, as shown in FIG. 8, D is the width of the image sensor, Z is the target distance, and the visual difference between the first image and the second image is ΔY=Y2+ΔX-Y1, which can be obtained according to the triangle similarity principle.

According to the equivalent principle, we can know that B=ΔY, we can get formula 2:

The preset formula can be obtained from Equation 1 and Equation 2:

The terminal device can adopt the preset formula

The target object distance Z is calculated based on the acquired first distance ΔX, the focal length f of the optical lens, and the first difference d.

Compared with the prior art, since the terminal device can control the optical lens of the single camera to move to the first position and the second position, and acquire the first difference of the second image when the first image and the second position are in the first position The value does not require the plurality of cameras to acquire the first position and the second position, respectively, and the first difference between the first image and the second image, thereby reducing the cost of the camera.

An embodiment of the present disclosure provides an object distance measuring method. The terminal device may determine a target object distance according to a first distance between the first position and the second position of the optical lens, a focal length of the optical lens, and a first difference. Since the terminal device can control the optical lens of the camera to move to the first position and the second position, acquire the first distance between the first position and the second position, and acquire the first image and the second position when the first position is obtained The first difference between the second images does not require the use of a plurality of cameras to acquire the first position and the second position, and the first difference between the first image and the second image, thereby reducing the cost of the camera .

Moreover, since the embodiment of the present disclosure adopts a single camera, it solves the difference in parameters (such as lens curvature, brightness, etc.) of multiple cameras when shooting an object by using multiple cameras, thereby affecting the precision of the shooting of the terminal device, thereby The problem that affects the shooting effect of the terminal device makes the captured image more precise.

Further, the embodiment of the present disclosure provides an object distance measurement method by acquiring a target object distance to implement background blur, map, 3D, and the like.

In a second embodiment of the present disclosure, FIG. 9 is a schematic structural diagram of a terminal device involved in the embodiment of the present disclosure. As shown in FIG. 9, the terminal device 90 may include: an obtaining unit 91 and The unit 92 is determined.

The obtaining unit 91 is configured to acquire a first image acquired by the optical lens of the terminal device at the first position. The obtaining unit 91 is further configured to acquire a second image acquired by the optical lens at the second position in a case where the optical lens is moved from the first position to the second position. The obtaining unit 91 is further configured to acquire a first distance between the first location and the second location. The obtaining unit 91 is further configured to acquire the first difference. The determining unit 92 is configured to determine the target object distance according to the first distance, the focal length of the optical lens, and the first difference. Wherein the first difference is between the position coordinates of the first pixel in the first image and the position coordinates of the second pixel in the second image in a case where the first image and the second image are located on the same plane The difference between the second pixel and the first pixel is a pixel position.

In a possible implementation, the determining unit 92 is further configured to determine the initial position of the optical lens as the first position before the acquiring unit 91 acquires the first image acquired by the optical lens of the terminal device at the first position. The terminal device in the embodiment of the present disclosure further includes: a first control unit. The first control unit is configured to control the optical lens to move from the initial position along the first preset direction of the plane of the optical lens to the second position before the acquiring unit 91 acquires the second image acquired by the optical lens at the second position. .

In a possible implementation manner, the first preset direction includes at least one of a first direction and a second direction, the first direction being an X-axis direction and the second direction being a Y-axis direction.

In a possible implementation manner, the terminal device in the embodiment of the present disclosure further includes: a second control unit. The second control unit is configured to control the second preset of the optical lens from the initial position of the optical lens along the plane of the optical lens before the acquiring unit 91 acquires the first image acquired by the optical lens of the terminal device at the first position. The direction moves to the first position. The second control unit is further configured to: before the acquiring unit 91 acquires the second image acquired by the optical lens at the second position, control the optical lens to move from the first position to the second position along the third preset direction of the plane of the optical lens .

In a possible implementation manner, the second preset direction is opposite to the third preset direction.

In a possible implementation manner, the second preset direction includes at least one of a first direction and a second direction, where the first direction is an X-axis direction, and the second direction is a Y-axis direction.

In a possible implementation manner, the third preset direction includes at least one of a first direction and a second direction, the first direction being an X-axis direction, and the second direction being a Y-axis direction.

The terminal device 90 provided by the embodiment of the present disclosure can implement various processes implemented by the terminal device in the foregoing method embodiments. To avoid repetition, detailed description and beneficial effects are not described herein again.

In a third embodiment of the present disclosure, FIG. 10 is a schematic diagram of a hardware structure of a terminal device that implements various embodiments of the present disclosure, including but not limited to: a radio frequency unit 101, a network module 102, and an audio output unit. 103. Input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power source 111.

It should be noted that those skilled in the art can understand that the terminal device structure shown in FIG. 10 does not constitute a limitation on the terminal device, and the terminal device may include more or less components than the illustrated, or combine some components. , or different parts layout. In the embodiment of the present disclosure, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 110 is configured to determine, when the first input of the user is received, a first location, where the first input is used to trigger an optical lens of the terminal device to acquire a first image, where the first image is the optical lens An image acquired when the first position is detected; and when the optical lens is detected to move from the first position to the second position, determining the second position; acquiring the first position between the first position and the second position a distance obtained by a difference between an abscissa of the corresponding two pixels in the first image and the second image, wherein the second image is the second position of the optical lens The image acquired at the time; combined with the preset formula, the target object distance is determined according to the first distance, the focal length of the optical lens, and the first difference.

The terminal device 100 provided by the embodiment of the present disclosure can implement various processes implemented by the terminal device in the foregoing method embodiments. To avoid repetition, the detailed description and the beneficial effects are not described herein again.

It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 101 may be used for receiving and transmitting signals during or after receiving or transmitting information, and specifically, receiving downlink data from the base station, and then processing the data to the processor 110; The uplink data is sent to the base station. In general, radio frequency unit 101 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 101 can also communicate with the network and other devices through a wireless communication system.

The terminal device provides the user with wireless broadband Internet access through the network module 102, such as helping the user to send and receive emails, browse web pages, and access streaming media.

The audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Moreover, the audio output unit 103 can also provide audio output (eg, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal device 100. The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is for receiving an audio or video signal. The input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042 that captures still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. Image data is processed. The processed image frame can be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio unit 101 or the network module 102. The microphone 1042 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 101 in the case of a telephone call mode.

The terminal device 100 also includes at least one type of sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can close the display panel 1061 when the terminal device 100 moves to the ear. / or backlight. As a kind of motion sensor, the accelerometer sensor can detect the acceleration of each direction (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 terminal device (such as horizontal and vertical screen switching, related games). , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; sensor 105 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 106 is for displaying information input by the user or information provided to the user. The display unit 106 can include a display panel 1061. The display panel 1061 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 107 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 terminal device. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071, 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 1071 or near the touch panel 1071. operating). The touch panel 1071 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. To the processor 110, the commands sent by the processor 110 are received and executed. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Specifically, the other input devices 1072 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 1071 can be overlaid on the display panel 1061. After the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits to the processor 110 to determine the type of the touch event, and then the processor 110 according to the touch. The type of event provides a corresponding visual output on display panel 1061. Although in FIG. 10, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated. The input and output functions of the terminal device are implemented, and are not limited herein.

The interface unit 108 is an interface in which an external device is connected to the terminal device 100. 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 108 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 terminal device 100 or can be used at the terminal device 100 and externally Data is transferred between devices.

Memory 109 can be used to store software programs as well as various data. The memory 109 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 109 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 110 is a control center of the terminal device that connects various portions of the entire terminal device using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 109, and recalling data stored in the memory 109. Perform various functions and processing data of the terminal device to perform overall monitoring on the terminal device. The processor 110 may include one or more processing units; preferably, the processor 110 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 performs modulation and demodulation. The processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 110.

The terminal device 100 may further include a power source 111 (such as a battery) for supplying power to the respective components. Preferably, the power source 111 may be logically connected to the processor 110 through the power management system to manage charging, discharging, and power management through the power management system. And other functions.

In addition, the terminal device 100 includes some functional modules not shown, and details are not described herein again.

Preferably, an embodiment of the present disclosure further provides a terminal device, including a processor 110, a memory 109, a computer program stored on the memory 109 and executable on the processor 110, when the computer program is executed by the processor 110. The various processes of the foregoing method embodiments 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. The computer readable storage medium stores a computer program. When the computer program is executed by the processor, the processes of the foregoing method embodiments are implemented, and the same technical effects can be achieved. To avoid repetition, we will not repeat them 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.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present application.

The embodiments of the present application have been described above with reference to the drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the scope of the present application, many forms may be made without departing from the scope of the invention as claimed.

Claims

An object distance measuring method, the method comprising:

Obtaining a first image acquired by the optical lens of the terminal device at the first position;

Acquiring the second image acquired by the optical lens at the second position in a case where the optical lens is moved from the first position to the second position;

Obtaining a first distance between the first location and the second location;

Obtaining the first difference;

Determining a target object distance according to the first distance, a focal length of the optical lens, and the first difference;

Wherein the first difference is a position coordinate of the first pixel in the first image and the second image in a case where the first image and the second image are located on a same plane a difference between position coordinates of the second pixel; the second pixel and the first pixel are pixels of a relative position.
The method of claim 1, before the acquiring the first image of the optical lens of the terminal device in the first position, the method further comprises:

Determining an initial position of the optical lens as the first position;

Before the obtaining the second image acquired by the optical lens in the second position, the method further includes:

Controlling the optical lens to move from the initial position to the second position along a first predetermined direction of the plane of the optical lens.
The method of claim 2, the first predetermined direction comprising at least one of a first direction and a second direction, the first direction being an X-axis direction and the second direction being a Y-axis direction.
The method of claim 1, before the acquiring the first image of the optical lens of the terminal device in the first position, the method further comprises:

Controlling the optical lens to move from the initial position of the optical lens to the first position along a second predetermined direction of the plane of the optical lens;

Before the obtaining the second image acquired by the optical lens in the second position, the method further includes:

Controlling the optical lens to move from the first position to the second position along a third predetermined direction of the plane of the optical lens.
The method of claim 4, wherein the second predetermined direction and the third predetermined direction are opposite.
The method according to claim 4 or 5, wherein the second predetermined direction comprises at least one of a first direction and a second direction, the first direction being an X-axis direction and the second direction being a Y-axis a direction of the third predetermined direction including at least one of the first direction and the second direction.
A terminal device, the terminal device comprising:

An acquiring unit, configured to acquire a first image acquired by the optical lens of the terminal device at the first position;

The acquiring unit is further configured to acquire, when the optical lens is moved from the first position to the second position, a second image acquired by the optical lens at the second position;

The acquiring unit is further configured to acquire a first distance between the first location and the second location;

The obtaining unit is further configured to acquire a first difference value;

a determining unit, configured to determine a target object distance according to the first distance, a focal length of the optical lens, and the first difference;

Wherein the first difference is a position coordinate of the first pixel in the first image and the second image in a case where the first image and the second image are located on a same plane a difference between position coordinates of the second pixel; the second pixel and the first pixel are pixels of a relative position.
The terminal device according to claim 7, wherein the determining unit is further configured to: before the acquiring unit acquires the first image acquired by the optical lens of the terminal device at the first position, the initial position of the optical lens Determined to be the first location;

The terminal device further includes:

a first control unit, configured to control, before the acquiring unit acquires the second image acquired by the optical lens at the second position, the first pre-preparation of the optical lens from the initial position along a plane of the optical lens The direction is moved to the second position.
The terminal device according to claim 8, wherein the first preset direction comprises at least one of a first direction and a second direction, the first direction is an X-axis direction, and the second direction is a Y-axis direction .
The terminal device according to claim 7, further comprising:

a second control unit, configured to control the optical lens from an initial position of the optical lens along the optical lens before the acquiring unit acquires the first image acquired by the optical lens of the terminal device at the first position Moving a second preset direction of the plane to the first position;

The second control unit is further configured to control, before the acquiring unit acquires the second image acquired by the optical lens at the second position, the optical lens from the first position along a plane of the optical lens The third predetermined direction moves to the second position.
The terminal device according to claim 10, wherein the second preset direction and the third preset direction are opposite.
The terminal device according to claim 10 or 11, wherein the second preset direction comprises at least one of a first direction and a second direction, the first direction is an X-axis direction, and the second direction is Y An axial direction; the third predetermined direction includes at least one of the first direction and the second direction.
A terminal device 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 object distance measuring method described.
A computer readable storage medium storing a computer program, the computer program being executed by a processor to implement the steps of the object distance measuring method according to any one of claims 1 to 6.