System and method for testing field angle of camera

Abstract

The invention provides a camera field angle test system and method. The test system comprises a hemispherical shell, a camera support and a processing device. A plurality of concentric circles are arranged on the inner wall of the hemispherical shell; the camera bracket is used for fixing a camera to be tested; the processing device is used for controlling the camera bracket to drive the camera to move to a target position to shoot the inner wall of the hemispherical shell, acquiring a target image shot by the camera, and determining a field angle of the camera according to a concentric circle of an edge position in the target image; wherein the target position is a position where the optical axis of the camera passes through the sphere center of the hemispherical shell.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the field of testing technologies, and more particularly, to a testing system and method for the field of view angle of a camera. Background Art

[0002] The field of view angle of a camera refers to the maximum angular range that the camera can capture. Testing the field of view angle helps to evaluate the capture range and performance of the camera.

[0003] In the prior art, for the testing method of the camera field of view angle, a planar test screen with a standard grid is set up in an open, flat and light-uniform space; the camera to be tested is installed at a fixed position to ensure that the optical axis of the camera is perpendicular to the test screen, and the height and position of the camera can completely capture the test screen; the camera is used to capture the test screen to obtain a target image containing the grid; in the captured target image, the edges and corners of the grid are observed, and by measuring the deformation of the grid in the target image and the range of the grid that can be completely displayed, the field of view angle of the camera in the horizontal and vertical directions is calculated.

[0004] However, the existing testing methods for the camera field of view angle not only increase the testing time, but also are prone to measurement errors, resulting in inaccurate test results for the field of view angle of the camera. Summary of the Invention

[0005] An object of the embodiments of the present disclosure is to provide a testing system and method for the field of view angle of a camera.

[0006] According to a first aspect of the embodiments of the present disclosure, a testing system for the field of view angle of a camera is provided, including a hemispherical housing, a camera bracket, and a processing device; a plurality of concentric circles are provided on the inner wall of the hemispherical housing; the camera bracket is used to fix the camera to be tested;

[0007] The processing device is used to control the camera bracket to drive the camera to move to a target position to capture the inner wall of the hemispherical housing, obtain the target image captured by the camera, and determine the field of view angle of the camera according to the concentric circles at the edge position in the target image;

[0008] Wherein, the target position is a position where the optical axis of the camera passes through the center of the sphere of the hemispherical housing.

[0009] Optionally, the testing system further includes a housing bracket, the hemispherical housing is fixed on the housing bracket, and a track cooperating with the camera bracket is further provided on the housing bracket, so that the camera bracket moves along the track, and the track is arranged at a position where the optical axis of the camera passes through the center of the sphere of the hemispherical housing.

[0010] Optionally, the test system further includes a motor, and the processing device is configured to control the rotation of the motor so that the motor drives the camera bracket to move along the track.

[0011] Optionally, the target position is the center of the spherical shell.

[0012] Optionally, the test system further includes a distance detection device disposed on the edge of the hemispherical shell, and the distance detection device is configured to detect the distance between itself and the camera; the control device is configured to control the camera bracket to stop moving when determining that the camera moves to the target position according to the distance.

[0013] Optionally, the control device is further configured to turn off the distance detection device when determining that the camera moves to the target position.

[0014] The test system further includes a reminder device, and the reminder device is configured to send a reminder message to remove the lens cap of the camera when the distance detection device is turned off.

[0015] Optionally, the processing device is configured to control the camera to turn on the automatic exposure mode so that the camera performs shooting in the automatic exposure mode.

[0016] Optionally, the processing device is configured to obtain camera parameters matching the camera and control the camera to perform shooting according to the camera parameters, where the camera parameters are parameters affecting the brightness and clarity of the target image.

[0017] Optionally, the test system further includes a connection device, and the connection device is connected to the processing device and the camera so that the processing device and the camera communicate through the connection device.

[0018] According to a second aspect of the present disclosure, there is provided a method for testing the field of view angle of a camera, including:

[0019] Controlling the camera to be tested to move to a target position; wherein the target position is a position where the optical axis of the camera passes through the center of the spherical shell;

[0020] Controlling the camera to shoot the inner wall of the hemispherical shell to obtain a target image; wherein a plurality of concentric circles are provided on the inner wall of the hemispherical shell;

[0021] Determining the field of view angle of the camera according to the concentric circles at the edge position in the target image.

[0022] Through the embodiments of the present disclosure, the field of view angle of a camera can be accurately detected, which is convenient for user operation and reduces the test time.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0025] Figure 1 is a block diagram of a test system for the field of view angle of a camera according to an embodiment of the present disclosure;

[0026] Figure 2 is a schematic structural diagram of a test system for the field of view angle of a camera according to an embodiment of the present disclosure;

[0027] Figure 3 is a flowchart of a test method for the field of view angle of a camera according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation on the present invention, its application, or its use.

[0030] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be considered as part of the specification.

[0031] In all examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0032] It should be noted that: like reference numerals and letters in the following drawings denote like items, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] <System>

[0034] The present disclosure provides a test system 1000 for the field of view angle of a camera, as Figure 1As shown, the test system 1000 includes a hemispherical housing 1100, a camera bracket 1200, and a processing device 1300.

[0035] As Figure 1 shown, multiple concentric circles are provided on the inner wall of the hemispherical housing. The camera bracket 1200 is used to fix the camera to be tested. The processing device 1300 is used to control the camera bracket 1200 to drive the camera to move to a target position to capture the inner wall of the hemispherical housing, obtain the target image captured by the camera, and determine the field of view angle of the camera according to the concentric circles at the edge position in the target image.

[0036] Among them, the target position is the position where the optical axis of the camera passes through the center of the sphere of the hemispherical housing.

[0037] In some embodiments, each concentric circle on the inner wall of the hemispherical housing has a corresponding angle value, and the position of each concentric circle on the inner wall of the hemispherical housing can be the position of the edge of the target image obtained by the camera with the corresponding field of view angle capturing the inner wall of the hemispherical housing at the target position.

[0038] In some embodiments, the angle value corresponding to the concentric circle can be pre-identified on the inner wall of the hemispherical housing to identify each concentric circle. For example, the angle value can be identified on the corresponding concentric circle or on the inner side of the corresponding concentric circle.

[0039] Specifically, the angle value corresponding to the largest concentric circle can be 180 degrees, and the angle value corresponding to the smallest concentric circle can be 1 degree. The difference in the angle values corresponding to adjacent concentric circles can be equal. For example, the difference in the angle values corresponding to adjacent concentric circles can be 1 degree or 2 degrees.

[0040] Furthermore, the difference in the radii of adjacent concentric circles can be unequal.

[0041] In some embodiments, it can be the mapping data that pre-sets the mapping relationship between the angle value and the radius. According to this mapping data and the angle value corresponding to the concentric circle, the radius of the concentric circle is determined, and then the concentric circle is set on the inner wall of the hemispherical housing according to the angle value and radius corresponding to the concentric circle.

[0042] In some embodiments, to determine the field of view angle of the camera according to the concentric circles at the edge position in the target image, the angle value corresponding to the concentric circles at the edge position in the target image can be used as the field of view angle of the camera.

[0043] In some embodiments, the target image captured by the camera may be a rectangular image. Then, the angular value corresponding to the concentric circle at the outermost edge position of the target image in the first direction can be determined as the field of view angle of the camera in the first direction; the angular value corresponding to the concentric circle at the outermost edge position of the target image in the second direction can be determined as the field of view angle of the camera in the second direction. Wherein, the first direction may be the length direction of the target image, the second direction may be the height direction of the target image, and the first direction and the second direction are perpendicular to each other.

[0044] Furthermore, the angular value corresponding to the concentric circle at the outermost edge position of the target image in the third direction can also be determined as the field of view angle of the camera in the third direction. Wherein, the included angles between the third direction and the first direction and the second direction are equal, and can both be 45 degrees.

[0045] In some embodiments, a crosshair may also be provided on the inner wall of the hemispherical housing. The crosshair includes a horizontal center line, a vertical center line, and two diagonal lines. In the target image captured by the camera, the horizontal center line is parallel to the length direction of the target image, and the vertical center line is parallel to the height direction of the target image.

[0046] Based on this embodiment, the outermost edge position of the target image in the first direction is the intersection of the horizontal center line of the crosshair in the target image and the outermost concentric circle; the outermost edge position of the target image in the second direction is the intersection of the vertical center line of the crosshair in the target image and the outermost concentric circle; the outermost edge position of the target image in the third direction is the intersection of the diagonal line of the crosshair in the target image and the outermost concentric circle.

[0047] In some embodiments, the processing device 1300 may first control the camera bracket 1200 that does not fix the camera to be tested to move to a position far from the hemispherical housing 1100, so as to facilitate the user to fix the camera to be tested on the camera bracket 1200. Then, the processing device 1300 controls the camera bracket 1200 to drive the camera to move in the direction close to the hemispherical housing 1100 until the camera is located at the target position.

[0048] Through the embodiments of the present disclosure, the field of view angle of the camera can be accurately detected, which is convenient for the user to operate and reduces the test time.

[0049] In some embodiments, as Figure 2 shown, the test system 1000 further includes a housing bracket 1400. The hemispherical housing 1100 is fixed on the housing bracket 1400. A track 1500 that cooperates with the camera bracket is also provided on the housing bracket 1400, so that the camera bracket 1200 can move along the track 1500, and the setting position of the track 1500 enables the optical axis of the camera to pass through the center of the sphere of the hemispherical housing 1100.

[0050] Through this embodiment, during the process of the camera bracket 1200 driving the camera to move, the optical axis of the camera can always pass through the center of the spherical shell 1100, so as to move the camera to the target position.

[0051] In some embodiments, the test system 1000 further includes a motor (not shown in the figure), and the processing device 1300 is configured to control the rotation of the motor so that the motor drives the camera bracket to move along the track.

[0052] Specifically, the processing device 1300 includes a driving circuit of the motor. The driving circuit can output a first driving signal to make the motor rotate in the clockwise direction to drive the camera bracket 1200 to move towards the direction close to the spherical shell 1100; the driving circuit can also output a second driving signal to make the motor rotate in the counterclockwise direction to drive the camera bracket 1200 to move away from the spherical shell 1100.

[0053] Through this embodiment, it is convenient for the processing device to control the camera bracket to drive the camera to the target position to accurately detect the field of view angle of the camera.

[0054] In some embodiments, the target position is the center of the spherical shell 1100.

[0055] In this embodiment, the maximum field of view angle of the camera is 180 degrees. Setting the target position as the center of the spherical shell 1100 can more accurately detect the field of view angle of any camera and improve the applicability of the test system.

[0056] In some embodiments, as Figure 2 shown, the test system 1000 further includes a distance detection device 1600. The distance detection device 1600 is arranged at the edge of the spherical shell 1100, and the distance detection device 1600 is used to detect the distance between itself and the camera; the control device 1300 is configured to control the camera bracket 1200 to stop moving according to the distance when the camera moves to the target position.

[0057] In this embodiment, when the user installs the camera on the camera bracket 1200, the distance between the camera bracket 1200 and the spherical shell 1100 is the first distance, and when the camera is at the target position, the distance between the camera bracket 1200 and the spherical shell 1100 is the second distance, and the first distance is greater than the second distance.

[0058] Further, when the camera is at the target position, the distance between the camera and the distance detection device 1600 is a set distance.

[0059] On this basis, after the user fixes the camera to be tested on the camera bracket 1200, the processing device 1300 controls the camera bracket 1200 to drive the camera to move in the direction close to the hemispherical housing 1100. Then, the distance detected by the distance detection device 1600 gradually decreases. When the distance detected by the distance detection device 1600 is the set distance, it can be determined that the camera is located at the target position, and then the movement of the camera bracket 1200 can be controlled to stop, so that the camera is stationary at the target position for shooting, ensuring the accuracy of the test result of the camera field of view.

[0060] In some embodiments, the distance detection device 1600 may include a laser rangefinder. To avoid the excessive energy of the laser rangefinder from burning out the camera to be tested, when fixing the camera on the camera bracket 1200, the camera can be covered with a lens cap.

[0061] In this embodiment, the lens cap must be removed when the camera is shooting. To avoid burning out the camera during shooting, the control device 1300 can turn off the distance detection device 1600 when it determines that the camera has moved to the target position.

[0062] In this embodiment, turning off the distance detection device 1600 can be to stop supplying power to the distance detection device 1600 or to control the distance detection device 1600 to shut down.

[0063] Further, the test system 1000 further includes a reminder device, which is used to send a reminder message to remove the lens cap of the camera when the distance detection device 1600 is turned off. The reminder message can include any one or more of text information, sound information, and light information.

[0064] In this embodiment, the reminder device can be provided by the host computer.

[0065] Further, at least some function modules in the processing device can also be provided by the host computer.

[0066] In some embodiments, the processing device 1300 is used to control the camera to turn on the automatic exposure mode, so that the camera shoots in the automatic exposure mode.

[0067] When the camera shoots in the automatic exposure mode, the brightness and clarity of the obtained target image can accurately distinguish the concentric circles at the edge position, and then the field of view of the camera can be accurately obtained.

[0068] In some embodiments, the processing device 1300 can be used to obtain camera parameters matching the camera and control the camera to shoot according to the camera parameters, where the camera parameters are parameters affecting the brightness and clarity of the target image.

[0069] In one embodiment, the user can set the camera parameters according to the camera to be tested.

[0070] In another embodiment, it is also possible to pre-set the camera parameters corresponding to multiple types of cameras, and obtain the camera parameters of the camera to be tested according to the type of the camera to be tested.

[0071] In this embodiment, the camera parameters may include parameters such as aperture, sensitivity, exposure, and automatic gain.

[0072] In some embodiments, the test system further includes a connection device, and the connection device is connected to the processing device and the camera, so that the processing device and the camera communicate through the connection device.

[0073] In this embodiment, the connection device may include interfaces for various types of cameras, so that the camera communicates with the processing device, and then the field of view angle of the camera is tested, improving the applicability of the test system for the field of view angle of the camera.

[0074] <Method Embodiment>

[0075] The present disclosure provides a method for testing the field of view angle of a camera, and the method for testing the field of view angle of the camera may be implemented by a processing device in a test system for the field of view angle of the camera.

[0076] Figure 3 It is a flowchart of the method for testing the field of view angle of a camera according to an embodiment of the present disclosure.

[0077] As Figure 3 shown, the method includes steps S3100 to S3300 as follows:

[0078] Step S3100, controlling the camera to be tested to move to a target position; wherein, the target position is a position where the optical axis of the camera passes through the center of the spherical shell, and a plurality of concentric circles are provided on the inner wall of the spherical shell.

[0079] Step S3200, controlling the camera to capture the inner wall of the spherical shell to obtain a target image.

[0080] Step S3300, determining the field of view angle of the camera according to the concentric circles at the edge position in the target image.

[0081] Through the embodiments of the present disclosure, the field of view angle of the camera can be accurately detected, and it is convenient for the user to operate and reduces the test time.

[0082] In some embodiments, before performing step S3100, the method may include: controlling the camera bracket of the camera to be fixed to move to a position away from the hemispherical housing 1100, and sending a reminder message to fix the camera to be tested on the moving bracket and cover the lens of the camera to be tested with a lens cap, to remind the user to fix the camera to be tested on the moving bracket and cover the lens of the camera to be tested with a lens cap.

[0083] In some embodiments, controlling the camera to be tested to move to a target position includes: controlling the camera bracket to drive the camera to be tested to move towards the target position, and detecting the distance between the camera and the edge of the hemispherical housing. When the distance is equal to the set distance, it is determined that the camera has moved to the target position.

[0084] In some embodiments, after performing step S3100 and before performing step S3200, the method may include: stopping detecting the distance between the camera and the edge of the hemispherical housing, and then sending a reminder message to remove the lens cap of the camera, to remind the user to remove the lens cap covering the camera lens.

[0085] In some embodiments, controlling the camera to capture the inner wall of the hemispherical housing may include: controlling the camera to capture in the automatic exposure mode.

[0086] In some embodiments, controlling the camera to capture the inner wall of the hemispherical housing may include: obtaining camera parameters matching the camera, and controlling the camera to capture according to the camera parameters.

[0087] In some embodiments, the method may further include: when the field of view angle of the camera cannot be determined based on the obtained target image, a reminder message to modify the camera parameters may be sent to enable the user to modify the camera parameters.

[0088] In some embodiments, after performing step S3300, the method further includes: associatively storing the target image and the field of view angle of the camera for later traceability.

[0089] <Readable storage medium embodiment>

[0090] This embodiment provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the method described in any method embodiment of the present disclosure is executed.

[0091] The present invention may be a system, a method, and / or a computer program product. The computer program product may include a computer-readable storage medium having thereon computer-readable program instructions for causing a processor to implement various aspects of the present invention.

[0092] A computer-readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. A computer-readable storage medium may be, for example—but not limited to—an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device, such as a punched card or raised structures in grooves storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage medium used herein is not construed as an instantaneous signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated through a waveguide or other transmission medium (e.g., an optical pulse through an optical fiber cable), or an electrical signal transmitted through a wire.

[0093] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing / processing devices, or downloaded to an external computer or external storage device through a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network may include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing / processing device.

[0094] The computer program instructions for carrying out the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state-setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider). In some embodiments, by using the state information of the computer-readable program instructions to customize an electronic circuit, such as a programmable logic circuit, a field-programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit can execute the computer-readable program instructions to implement various aspects of the present invention.

[0095] Aspects of the present invention are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0096] These computer-readable program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, when executed by the processor of the computer or other programmable data processing apparatus, create a means for implementing the functions / acts specified in one or more blocks of the flowchart illustrations and / or block diagrams. These computer-readable program instructions may also be stored in a computer-readable storage medium that causes a computer, a programmable data processing apparatus, and / or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises a manufacture including instructions for implementing various aspects of the functions / acts specified in one or more blocks of the flowchart illustrations and / or block diagrams.

[0097] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device, causing a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process such that the instructions executed on the computer, other programmable data processing apparatus, or other device implement the functions / acts specified in one or more boxes of the flowchart and / or block diagram.

[0098] The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a portion of an instruction, which contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two consecutive blocks may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block of the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or acts, or by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are equivalent.

[0099] The embodiments of the present invention have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the market, or to enable other ordinary skilled persons in the technical field to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A test system for the field of view angle of a camera, characterized in that It includes a hemispherical housing, a camera bracket, and a processing device; multiple concentric circles are provided on the inner wall of the hemispherical housing; the camera bracket is used to fix the camera to be tested; The processing device is used to control the camera bracket to drive the camera to move to a target position to capture the inner wall of the hemispherical housing, obtain the target image captured by the camera, and determine the field of view angle of the camera according to the concentric circles at the edge position in the target image; Wherein, the target position is the position where the optical axis of the camera passes through the center of the sphere of the hemispherical housing.

2. The test system according to claim 1, characterized in that The test system further includes a housing bracket, the hemispherical housing is fixed on the housing bracket, and a track for cooperating with the camera bracket is also provided on the housing bracket, so that the camera bracket moves along the track, and the position of the track is set such that the optical axis of the camera passes through the center of the sphere of the hemispherical housing.

3. The test system according to claim 2, wherein, The test system further includes a motor, and the processing device is used to control the motor to rotate, so that the motor drives the camera bracket to move along the track.

4. The test system according to claim 1, characterized in that The target position is the center of the sphere of the hemispherical housing.

5. The test system according to claim 4, characterized in that The test system further includes a distance detection device, the distance detection device is arranged on the edge of the hemispherical housing, and the distance detection device is used to detect the distance between itself and the camera; the control device is used to control the camera bracket to stop moving according to the distance when the camera moves to the target position.

6. The test system according to claim 5, characterized in that, The control device is further used to turn off the distance detection device when it is determined that the camera has moved to the target position; The test system further includes a reminder device, and the reminder device is used to send a reminder message to remove the lens cap of the camera when the distance detection device is turned off.

7. The test system according to claim 1, characterized in that, The processing device is used to control the camera to turn on the automatic exposure mode, so that the camera captures images in the automatic exposure mode.

8. The test system according to claim 1, characterized in that, The processing device is used to obtain camera parameters matching the camera, and control the camera to capture images according to the camera parameters, wherein the camera parameters are parameters affecting the brightness and clarity of the target image.

9. The test system according to claim 1, characterized in that, The test system further includes a connection device, and the connection device is connected to the processing device and the camera, so that the processing device and the camera communicate through the connection device.

10. A method for testing the field of view angle of a camera, characterized in that, It includes: Controlling the camera to be tested to move to a target position; wherein, the target position is the position where the optical axis of the camera passes through the center of the sphere of the hemispherical housing; Controlling the camera to capture the inner wall of the hemispherical housing to obtain a target image; wherein, multiple concentric circles are provided on the inner wall of the hemispherical housing; Determining the field of view angle of the camera according to the concentric circles at the edge position in the target image.

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