WO2020140976A1

WO2020140976A1 - Image acquisition method, device, point-reading device, electronic device and storage medium

Info

Publication number: WO2020140976A1
Application number: PCT/CN2020/070297
Authority: WO
Inventors: 刘鑫
Original assignee: 北京字节跳动网络技术有限公司
Priority date: 2019-01-03
Filing date: 2020-01-03
Publication date: 2020-07-09
Also published as: CN111405173A; CN111405173B

Abstract

Disclosed herein are an image acquisition method, device, point-reading device, electronic device and storage medium. The method comprises: acquiring information about the plane in which an object to be photographed is located; if the difference between the included angle between the optical axis of a camera and the plane in which the object to be photographed is located and a preset angle is greater than an error threshold, adjusting the difference between said included angle and the preset angle to be less than or equal to the error threshold; and acquiring an image of the object to be photographed by means of the camera.

Description

Image acquisition method, device, point reading device, electronic device and storage medium

This application requires the priority of the Chinese patent application with the application number 201910005048.4 filed by the China Patent Office on January 3, 2019. The entire contents of this application are incorporated by reference in this application.

Technical field

Embodiments of the present disclosure relate to image acquisition technology, for example, to an image acquisition method, device, point reading device, electronic device, and storage medium.

Background technique

In the related art, when shooting with an electronic device with a camera, because the position of the camera is fixed, when the position of the electronic device is also fixed, the area shot by the camera is limited. For the edge area of the shot area, the camera is difficult to focus. Image clarity is not high.

For the edge area of the photographed area, if a high-definition image is to be obtained, it is realized by moving the electronic device, and the position to which the electronic device moves requires continuous debugging by the user, and the process is cumbersome and complicated.

Summary of the invention

The present disclosure provides an image acquisition method, device, point reading device, electronic device, and storage medium, to solve the problem in the related art that it is difficult to focus when the user manually moves the position of the electronic device to change the shooting angle.

In an embodiment, an embodiment of the present disclosure provides an image acquisition method. The method includes:

Obtain the information of the plane where the object to be shot is located

When the difference between the angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to The error threshold

Obtain the image of the object to be photographed through the camera.

In an embodiment, an embodiment of the present disclosure provides an image acquisition device, which includes:

The plane information acquisition module is set to obtain the information of the plane where the object to be photographed is located;

The adjustment module is configured to adjust the difference between the included angle and the preset angle when the difference between the included angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold The value is less than or equal to the error threshold;

The image acquisition module is configured to acquire the image of the object to be photographed through the camera.

In an embodiment, an embodiment of the present disclosure provides a point reading device including a main body, a controller located in the main body, and a camera located on the main body, the main body being mounted on the object to be photographed On the carrier where it is located, an image acquisition device according to any embodiment of the present disclosure is provided in the controller.

In an embodiment, an embodiment of the present disclosure provides an electronic device. The electronic device includes:

One or more processors;

Memory, set to store one or more programs;

The one or more programs are executed by the one or more processors, so that the one or more processors implement the image acquisition method according to any embodiment of the present disclosure.

In an embodiment, an embodiment of the present disclosure provides a computer-readable storage medium that stores a computer program on the computer-readable storage medium, and when the computer program is executed by a processor, implemented as any embodiment of the present disclosure The image acquisition method described above.

BRIEF DESCRIPTION

1 is a flowchart of an image acquisition method provided in Embodiment 1 of the present disclosure;

2a is a flowchart of an image acquisition method provided in Embodiment 2 of the present disclosure;

2b is a schematic structural diagram of a point reading device according to Embodiment 2 of the present disclosure;

2c is a schematic structural diagram of a camera provided by Embodiment 2 of the present disclosure;

3 is a schematic structural diagram of an image acquisition device provided in Embodiment 3 of the present disclosure;

4 is a schematic structural diagram of a point reading device according to Embodiment 4 of the present disclosure;

5 is a schematic structural diagram of an electronic device according to Embodiment 5 of the present disclosure.

detailed description

The disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used for explaining the present disclosure, rather than limiting the present disclosure. For ease of description, only some parts but not all structures related to the present disclosure are shown in the drawings.

In the following multiple embodiments, each embodiment also provides optional features and examples. The multiple features described in the embodiments can be combined to form multiple optional solutions. Each numbered embodiment should not be Only regarded as a technical solution.

Example one

FIG. 1 is a flowchart of an image acquisition method according to Embodiment 1 of the present disclosure. This embodiment can be applied to a method for acquiring an image when there is a difference between the angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle. In the case of photographing an object image, the method may be performed by an image acquisition device, which may be composed of hardware and/or software, and may be integrated in electronic devices such as mobile phones, tablets, and computers. The image acquisition method includes the following steps:

S110: Obtain information about the plane where the object to be photographed is located.

The object to be photographed may be, for example, a book, a newspaper, or a picture book, and the plane on which the object to be photographed may be, for example, the desktop where the book is located. Optionally, the object to be photographed may be used as a point-to-point reading material for the point-reading device to perform point-reading. Exemplarily, acquiring the information of the plane where the object to be shot includes taking an image of the plane through a camera, and extracting the outline of the plane. The information of the plane may further include position information of the plane in the three-dimensional space, and the position information may be, for example, angle information between the plane and the horizontal direction and the vertical direction, respectively.

S120: Determine whether the difference between the included angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold.

S130. If the difference between the angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to the error Threshold.

When the angle between the optical axis of the camera and the plane of the object to be photographed is the preset angle, the distance between the camera and the different regions of the object to be photographed is the same, and different regions of the object to be photographed can be simultaneously focused to ensure that a clear object is obtained Subject image. When the angle between the optical axis of the camera and the plane of the object to be photographed is different from the preset angle, the distance between the different regions of the object to be photographed and the camera is different, so it is difficult to achieve simultaneous focusing on different regions of the object to be photographed Therefore, the angle between the optical axis of the camera and the plane of the object to be photographed is adjusted so that the adjusted angle is the preset angle. When the angle between the optical axis of the camera and the plane where the object is to be captured is different from the preset angle, it can be determined by the difference between the included angle and the preset angle. When the difference is greater than the error threshold, the included angle can be determined The deviation from the preset angle is larger, and the included angle is adjusted so that the included angle is equal to the preset angle. In the process of adjusting the included angle, the difference between the included angle and the preset angle can be referred to. When the difference is less than or equal to the error threshold, the adjustment can be completed.

Exemplarily, the preset angle is 90°.

Optionally, when adjusting the included angle, it can be achieved by adjusting the angle of the optical axis of the camera, or by adjusting the angle of the plane of the object to be photographed, or by adjusting the angle of the optical axis of the camera and the angle of the plane of the object to be photographed achieve.

Taking the adjustment of the optical axis angle of the camera as an example, the adjustment of the difference between the included angle and the preset angle is less than or equal to the error threshold includes: generating an angle adjustment instruction of the camera, and the angle adjustment instruction includes The tilt angle of the adjusted camera, and the difference between the angle between the optical axis of the adjusted camera and the plane where the object is to be captured and the preset angle is less than or equal to the error threshold. The tilting of the camera according to the tilting angle can realize the tilting of the optical axis of the camera, so that the angle between the optical axis and the plane of the object to be photographed can be adjusted, the different areas of the object to be photographed can be simultaneously focused, and the image clarity of the object to be photographed can be improved. The optical axis of the camera is perpendicular to the complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor (CMOS) sensor) in the camera. Optionally, the angle adjustment of the camera can be achieved by adjusting the tilt angle of the CMOS sensor of the camera.

Optionally, the generating the angle adjustment instruction of the camera includes: determining the adjusted camera tilt angle according to the mapping relationship between the included angle and the tilt angle, and the preset angle; according to the determined adjusted The tilt angle of the camera generates an angle adjustment instruction of the camera.

Exemplarily, the mapping relationship may be a mutual relationship, for example, the included angle is 30°, the tilt angle is a clockwise tilt of 60°, the preset angle is 90°, and the CMOS sensor is tilted according to the tilt angle so that the included angle The difference between the angle and the preset angle is less than or equal to the error threshold. Exemplarily, the mapping relationship may also be an equal relationship, for example, the included angle is 30°, the tilt angle is counterclockwise tilted by 30°, the preset angle is 90°, and the CMOS sensor is tilted according to the tilt angle so that the included angle The difference between the angle and the preset angle is less than or equal to the error threshold. The mapping relationship is not specifically limited here, as long as the camera is tilted according to the tilt angle so that the difference between the included angle and the preset angle is less than or equal to the error threshold. The mapping relationship between the included angle and the tilt angle can increase the adjustment rate of the camera tilt, thereby improving the efficiency of acquiring the image of the object to be shot.

If the difference between the angle between the optical axis of the camera and the plane of the object to be photographed and the preset angle is less than or equal to the error threshold, you can directly perform S140 without adjusting the tilt angle of the camera.

S140. Acquire an image of the object to be shot through the camera.

According to the method of this embodiment, the camera can simultaneously focus on different areas of the object to be photographed, thereby improving the clarity of the image of the object to be photographed by the camera.

The image acquisition method provided by the embodiment of the present disclosure obtains the information of the plane of the object to be photographed; when the difference between the angle between the optical axis of the camera and the plane of the object to be photographed and the preset angle is greater than the error threshold, the included angle is adjusted The difference between the angle and the preset angle is less than or equal to the error threshold, and the angle between the optical axis of the camera and the plane of the object to be photographed can be adjusted to prevent the camera from being fixed at a certain angle between the camera and the plane of the object to be photographed When the distance between different shooting areas of the object to be shot and the camera is different, the entire object to be shot cannot be focused at the same time, resulting in the problem of low image clarity. The embodiments of the present disclosure can achieve simultaneous focusing of different shooting areas of the object to be achieved. Focusing automation improves the image clarity of the object to be shot and improves the user experience.

Example 2

The second embodiment of the present disclosure takes a spot-reading scenario as an example, and FIG. 2a is a schematic flowchart of an image acquisition method provided by the second embodiment of the present disclosure. This embodiment is embodied on the basis of multiple optional solutions in the above embodiments. The image acquisition method includes the following steps:

S210. Acquire the information of the plane where the point reading material is located.

The point-reading material is a book, for example, and the plane on which the point-reading material is located may be, for example, a desktop. Obtain the image data of the book through the camera, and the point reading device analyzes the image data to obtain the image content, such as text, and convert it into voice data to realize point reading. 2b is a schematic diagram of the structure of the point reading device, which includes the point reading material 21, the desktop 22 where the point reading material 21 is located, the camera 23 for point reading, and the point reading device 24.

S220. When the difference between the angle between the optical axis of the camera and the plane where the spot reading material is located and the preset angle is greater than the error threshold, generate an angle adjustment instruction for the camera, the angle adjustment instruction includes the adjusted The tilt angle of the camera, the difference between the angle between the adjusted optical axis of the camera and the plane where the spot reading material is located and the preset angle is less than or equal to the error threshold.

As shown in FIG. 2b, the angle between the optical axis of the camera 23 and the plane where the spot reading material 21 is located is α, and the included angle is an acute angle, and the size range is 0°≤α≤90°. Taking the preset angle of 90° as an example, the error threshold β may be 10°, for example, when the absolute value of the difference between the included angle and the preset angle is greater than the error threshold β, that is

It can be obtained that 0°≤α<80°. When the included angle angle α satisfies 0°≤α<80°, an angle adjustment command is generated, and the angle adjustment command makes the difference between the included angle angle and the preset angle less than or equal to the error threshold, that is

Therefore, the corresponding included angle in the angle adjustment instruction satisfies:

As shown in FIG. 2b, the tilt angle of the camera 23 is γ, and γ is the included angle between the optical axis of the camera and the vertical direction, then the mapping relationship between the included angle and the tilt angle of the camera is complementary, and the tilt angle of the camera 23

When the tilt angle of the camera 23 is γ which is the angle between the optical axis of the camera 23 and the horizontal direction, the mapping relationship between the angle and the tilt angle of the camera 23 is equal, and the tilt angle of the camera 23 is γ=α. According to the tilt angle of the camera 23, the camera 23 is tilted so that the difference between the included angle and the preset angle is less than the error threshold, and the included angle between the optical axis of the camera 23 and the plane where the point reading material 21 is located is 90°. 21 The upper and lower areas are at equal distances from the camera 23, which can achieve simultaneous focusing, ensure the clarity of the image of the point reading material 21 acquired by the camera, and improve the accuracy of point reading.

As shown in FIG. 2c, it is a schematic structural diagram of a camera provided by an embodiment of the present disclosure. The camera 23 includes a CMOS sensor 25 provided inside the camera 23. The tilt of the camera 23 is realized by the CMOS sensor 25 in the camera 23, and the CMOS sensor can be tilted in the vertical direction at an angle of γ.

S230. Acquire an image of the point reading material through the camera.

After the camera is tilted, the image of the point reading material is acquired through the camera, the text is recognized on the image, and the text is converted into voice to realize the point reading of the point reading material.

The image acquisition method provided by the embodiment of the present disclosure can achieve simultaneous focusing on different areas of the point reading material, ensure the clarity of the image of the point reading material acquired by the camera, and improve the accuracy of the point reading.

Example Three

FIG. 3 is a schematic structural diagram of an image acquisition device according to Embodiment 3 of the present disclosure. Referring to FIG. 3, the image acquisition device includes: a plane information acquisition module 310, an adjustment module 320, and an image acquisition module 330, and each module will be described in detail below.

The plane information obtaining module 310 is set to obtain the information of the plane where the object to be photographed is located;

The adjustment module 320 is configured to adjust the difference between the included angle and the preset angle when the difference between the included angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold Less than or equal to the error threshold;

The image acquisition module 330 is configured to acquire the image of the object to be photographed through the camera.

The image acquisition device provided by this embodiment realizes simultaneous focusing of different shooting areas of a subject, realizes automation of focusing, improves the image clarity of the subject, and improves the user experience.

Optionally, the adjustment module includes:

The angle adjustment instruction generating unit is configured to generate an angle adjustment instruction of the camera, the angle adjustment instruction includes the adjusted camera tilt angle, and the clamp between the adjusted optical axis of the camera and the plane where the object to be photographed is located The difference between the angle angle and the preset angle is less than or equal to the error threshold.

Optionally, the angle adjustment instruction generating unit is set to:

Determine the adjusted camera tilt angle according to the mapping relationship between the included angle and the tilt angle, and the preset angle;

The angle adjustment instruction of the camera is generated according to the determined tilt angle of the adjusted camera.

Optionally, the preset angle is 90°.

The image acquisition device provided by the present disclosure can execute the image acquisition method provided by any embodiment of the present disclosure, and has corresponding function modules and effects for performing the image acquisition method.

Example 4

4 is a schematic structural diagram of a point reading device according to Embodiment 3 of the present disclosure. Referring to FIG. 4, the point reading device includes a main body 41, a controller 42 located in the main body 41, and a camera 43 located on the main body 41. The main body 41 is mounted on a carrier 45 where the object 44 to be photographed is located, and the controller 42 An image acquisition device as provided by an embodiment of the present disclosure is provided.

The point reading device may be, for example, a computer with a camera, a tablet or a mobile phone. The object 44 to be photographed is material to be read, such as books, newspapers or picture books. Exemplarily, the carrier 45 on which the object 44 is to be located is a desktop, the main body 41 of the point reading device is installed on the desktop, and the controller 42 is provided with an image acquisition device provided in an embodiment of the present disclosure. The image acquisition device can implement the present disclosure Examples provide image acquisition methods. Through the image acquisition method provided by the embodiment of the present disclosure, the point reading device can adjust the tilt angle of the camera 43 to achieve focusing on different areas of the point reading material, improve the clear picture of the acquired image of the point reading material, and ensure the point reading Accuracy and improve user experience.

Optionally, the camera includes a CMOS sensor and a lens connected to the CMOS sensor; wherein, the angle between the CMOS sensor and the body is adjustable. The angle of the optical axis of the camera can be adjusted through the adjustable connection between the CMOS sensor and the main body, and then the angle between the optical axis and the plane where the reading material is located can be adjusted to ensure that the difference between the angle and the preset angle is less than or equal to the error Threshold.

The point reading device provided in this embodiment realizes simultaneous focusing of different shooting areas of a subject, realizes automation of focusing, improves the image clarity of the subject, and improves the user experience.

Example 5

The following refers to FIG. 5, which shows a schematic structural diagram of an electronic device 500 suitable for implementing embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, for example, mobile phones, notebook computers, digital broadcast receivers, personal digital assistants (Personal Digital Assistant (PDA), tablet computers (Portable Android Device, PAD), portable multimedia players (Portable Media Player, PMP), mobile terminals such as in-vehicle terminals (such as car navigation terminals), and fixed terminals such as digital television (Television, TV), desktop computers, and so on. The electronic device shown in FIG. 5 is only an example.

As shown in FIG. 5, the electronic device 500 may include a processing device (such as a central processing unit, a graphics processor, etc.) 501, which may be stored in a read-only memory (Read-Only Memory, ROM) 502 program or from a storage device 508 loads the program in random access memory (Random Access Memory, RAM) 503 to perform various appropriate actions and processes. In the RAM 503, various programs and data necessary for the operation of the electronic device 500 are also stored. The processing device 501, ROM 502, and RAM 503 are connected to each other via a bus 504. An input/output (Input/Output, I/O) interface 505 is also connected to the bus 504.

Generally, the following devices can be connected to the I/O interface 505: including an input device 506 such as a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, and/or gyroscope, etc.; including, for example, a liquid crystal display (Liquid Crystal Display), (LCD), an output device 507 of a speaker and/or a vibrator, etc.; a storage device 508 including, for example, magnetic tape and/or a hard disk, etc.; and a communication device 509. The communication device 509 may allow the electronic device 500 to perform wireless or wired communication with other devices to exchange data. Although FIG. 5 shows an electronic device 500 having various devices, it should be understood that it is not required to implement or have all the devices shown. More or fewer devices may be implemented or provided instead.

According to an embodiment of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product that includes a computer program carried on a computer-readable medium, the computer program containing program code for performing the method shown in the flowchart. In such an embodiment, the computer program may be downloaded and installed from the network through the communication device 509, or from the storage device 508, or from the ROM 502. When the computer program is executed by the processing device 501, the above-mentioned functions defined in the method of the embodiments of the present disclosure are executed.

The computer-readable medium in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination of the above. Computer-readable storage media may include: electrical connection with one or more wires, portable computer disk, hard disk, RAM, ROM, erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM) or flash memory, optical fiber , Portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above. In the present disclosure, the computer-readable storage medium may be a variety of tangible media containing or storing a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device. In this disclosure, the computer-readable signal medium may include a data signal that is propagated in baseband or as part of a carrier wave, in which computer-readable program code is carried. This propagated data signal can take many forms, including electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be a variety of computer-readable media other than computer-readable storage media, and the computer-readable signal medium may be sent, propagated, or transmitted for use by or in conjunction with an instruction execution system, apparatus, or device program. The program code contained on the computer-readable medium may be transmitted using a variety of suitable media, including: electric wires, optical cables, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the foregoing.

The computer-readable medium may be included in the electronic device; or may exist alone without being assembled into the electronic device.

The computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device is caused to: obtain information on the plane of the object to be photographed; if the optical axis of the camera and the If the difference between the included angle and the preset angle of the plane where the object is located is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to the error threshold; obtain the to-be-photographed through the camera Images of objects.

Alternatively, the computer-readable medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device is caused to: obtain information on the plane of the object to be photographed; if the optical axis of the camera is If the difference between the included angle and the preset angle of the plane where the object is to be captured is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to the error threshold; The image of the object to be shot.

The computer program code for performing the operations of the present disclosure can be written in one or more programming languages or a combination thereof. The above programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional Procedural programming language-such as "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as an independent software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In situations involving remote computers, the remote computer can be connected to the user's computer through any kind of network, including a local area network (Local Area Network, LAN) or wide area network (Wide Area Network, WAN), or it can be connected to an external computer ( (For example, using an Internet service provider to connect through the Internet).

The flowchart and block diagrams in the drawings illustrate the possible implementation architecture, functions, and operations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of code that contains one or more logic functions Executable instructions. In some alternative implementations, the functions marked in the blocks may also occur in an order different from that marked in the drawings. For example, two blocks shown in succession may actually be executed in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented with dedicated hardware-based systems that perform specified functions or operations, or can be implemented with dedicated hardware It is implemented in combination with computer instructions.

The units described in the embodiments of the present disclosure may be implemented in software or hardware. In some cases, the name of the unit does not constitute a limitation on the unit itself. For example, the adjustment module can also be described as a "difference adjustment module."

Example Six

Embodiment 6 of the present disclosure also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by an image acquisition device, an image acquisition method as provided in Embodiment 1 of the present disclosure is implemented. The method includes:

Obtain the information of the plane where the object to be shot is located;

If the difference between the angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to the error threshold;

Obtain the image of the object to be photographed through the camera.

Of course, a computer-readable storage medium provided by an embodiment of the present disclosure, when a computer program stored on it is executed, is not limited to implementing the method operations described above, and may also implement the image acquisition method provided by any embodiment of the present disclosure Related operations in.

Through the above description of the embodiments, those skilled in the art can clearly understand that the present disclosure can be implemented by software and general hardware, or by hardware. Based on this understanding, the technical solution of the present disclosure can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a computer floppy disk, ROM, RAM, flash memory (FLASH), hard disk, or optical disk Etc., including multiple instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the image acquisition methods described in various embodiments of the present disclosure.

In the above embodiment of the image acquisition device, the multiple units and modules included are only divided according to the functional logic, but it is not limited to the above division, as long as the corresponding functions can be realized; in addition, the multiple functional units The specific names are only for the purpose of distinguishing each other, and are not used to limit the protection scope of the present disclosure.

Claims

An image acquisition method, including:

Obtain the information of the plane where the object to be shot is located

When the difference between the angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold, adjust the difference between the included angle and the preset angle to be less than or equal to The error threshold

Obtain the image of the object to be photographed through the camera.
The method according to claim 1, wherein the difference between adjusting the included angle and the preset angle is less than or equal to the error threshold, including:

Generating an angle adjustment instruction of the camera, the angle adjustment instruction including the adjusted camera tilt angle, the angle between the optical axis of the adjusted camera and the plane of the object to be photographed, and the preset angle The difference is less than or equal to the error threshold.
The method according to claim 2, wherein the generating the angle adjustment instruction of the camera includes:

Determine the adjusted camera tilt angle according to the mapping relationship between the included angle and the tilt angle, and the preset angle;

The angle adjustment instruction of the camera is generated according to the determined tilt angle of the adjusted camera.
The method according to claim 1, wherein the preset angle is 90°.
An image acquisition device, including:

The plane information acquisition module is set to obtain the information of the plane where the object to be photographed is located;

The adjustment module is configured to adjust the difference between the included angle and the preset angle when the difference between the included angle between the optical axis of the camera and the plane where the object is to be captured and the preset angle is greater than the error threshold The value is less than or equal to the error threshold;

The image acquisition module is configured to acquire the image of the object to be photographed through the camera.
The apparatus according to claim 5, wherein the adjustment module comprises:

The angle adjustment instruction generating unit is configured to generate an angle adjustment instruction of the camera, the angle adjustment instruction includes the adjusted camera tilt angle, and the clamp between the adjusted optical axis of the camera and the plane where the object to be photographed is located The difference between the angle and the preset angle is less than or equal to the error threshold.
A point reading device, comprising a main body, a controller located in the main body and a camera located on the main body, the main body is mounted on the carrier where the object to be photographed is located, and the controller is provided in claims 5-6 The device of any one of the.
The apparatus according to claim 7, wherein the camera includes a complementary metal oxide semiconductor CMOS sensor, and a lens connected to the CMOS sensor; wherein the CMOS sensor is connected to the body at an adjustable angle.
An electronic device, including:

One or more processors;

Memory, set to store one or more programs;

The one or more programs are executed by the one or more processors, so that the one or more processors implement the method according to any one of claims 1-4.
A computer-readable storage medium storing a computer program on the computer-readable storage medium, the computer program being executed by a processor to implement the method according to any one of claims 1-4.