A computer vision test device

Abstract

The utility model discloses a computer vision test device belongs to computer vision technical field, including base, vision camera and test piece, the surface of base one end is provided with horizontal shift subassembly, and the horizontal shift subassembly is slidably installed with the slide table, and the surface of slide table is provided with test subassembly, and the surface of base other end is equipped with the support, and vision camera fixed mounting is in the support top, the utility model discloses through setting horizontal shift subassembly and test subassembly, through the rotation adjustment test piece and vision camera's distance of screw rod, and the article is fixed with the clamping plate through the positioning hole, the insert block to the article board, ensures test piece and camera vertical, and test piece is stereoscopic object, more close real vision camera's application scene, has improved the accuracy of test parameter, can control atomizing glass transparency through the current of adjusting power supply, thereby can test vision camera under the target detection and image processing performance of clear or fuzzy image.

Description

Technical Field

[0001] This utility model relates to the field of computer vision technology, and in particular to a computer vision experimental device. Background Technology

[0002] Computer vision uses computers to simulate human vision, extract information from images, process and understand it, and ultimately use it for actual detection, measurement and control. Computer vision equipment needs to be tested with experimental devices to test the performance of computer vision in target detection, image generation and other functions before use.

[0003] Existing computer vision testing devices mostly use calibration boards for testing. Calibration boards are two-dimensional objects, but computer vision devices need to process three-dimensional objects in actual applications, which leads to inconsistencies between the test objects and actual applications, and the test parameters may not be applicable.

[0004] If vision cameras are used in autonomous driving, their ability to handle blurred objects must also be considered to avoid missed detections due to blurred imaging when working in foggy or hot environments. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing computer vision testing devices, such as the inconsistency between the test objects and the actual applications, and the inability to test the ability to process blurry objects. Therefore, this invention proposes a computer vision testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A computer vision testing device includes a base, a vision camera, and a test piece. A transverse component is provided on the surface of one end of the base, a slide table is slidably installed in the transverse component, and a test piece is provided on the surface of the slide table. A bracket is provided on the surface of the other end of the base, and the vision camera is fixedly installed on the top of the bracket.

[0008] The test assembly includes a housing, which contains a test compartment and a circuit compartment. A fixing plate is fixedly installed in the test compartment, and the fixing plate has a sliding hole and a positioning hole on the side facing the vision camera. A power supply is fixedly installed in the circuit compartment.

[0009] Preferably, the transverse component includes slide rails, a lead screw is disposed between the slide rails, a drive motor is connected to the input end of the lead screw, the slide rails are slidably connected to the slide table, and the lead screw is threadedly connected to the slide table.

[0010] Preferably, a frosting glass is fixedly installed on the side of the housing facing the vision camera, and the input end of the frosting glass is located in the circuit compartment and is electrically connected to the power supply.

[0011] Preferably, a pair of sliding rods are slidably connected inside the sliding hole. A clamp is fixedly connected to the end of the sliding rod closer to the vision camera, and an operation plate is fixedly connected to the end of the sliding rod away from the vision camera. A fixing spring matching the sliding rod is fixedly connected to the side of the operation plate facing the sliding rod.

[0012] Preferably, the clamping plate is fixedly connected to a plug aligned with the positioning hole on the side facing the fixing plate.

[0013] Preferably, a shelf is provided between the clamping plate and the fixing plate, and a positioning block with a matching positioning hole is provided on one side of the shelf, and an insertion hole with a matching insertion block is provided on the other side of the shelf.

[0014] Preferably, the test piece is adhered to the side of the placement plate facing the vision camera.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model sets up a transverse component and a test component. The distance between the test piece and the vision camera is adjusted by rotating the lead screw. The placement plate is fixed to the clamp plate through positioning holes and inserts to ensure that the test piece is perpendicular to the camera. At the same time, the test piece is a three-dimensional object, which is closer to the application scenario of a real vision camera and improves the accuracy of the test parameters.

[0017] 2. This utility model can control the transparency of the frosted glass by adjusting the power supply current, thereby enabling the testing of the target detection and image processing performance of a visual camera under clear or blurry images. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a computer vision experimental device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the test component in a computer vision test device proposed in this utility model;

[0020] Figure 3 This is a rear structural assembly diagram of the test components in a computer vision test device proposed in this utility model;

[0021] Figure 4 This is a front structural assembly diagram of the test components in a computer vision test device proposed in this utility model;

[0022] Figure 5 This is a cross-sectional view of the structure of the placement plate in a computer vision experimental device proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Vision camera; 3. Test piece; 4. Slide table; 5. Bracket; 6. Box; 7. Test compartment; 8. Circuit compartment; 9. Fixing plate; 10. Sliding hole; 11. Positioning hole; 12. Power supply; 13. Slide rail; 14. Lead screw; 15. Drive motor; 16. Atomizing glass; 17. Slide rod; 18. Clamping plate; 19. Operation panel; 20. Fixing spring; 21. Insert block; 22. Shelf plate; 23. Positioning block; 24. Socket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1-5 A computer vision testing device includes a base 1, a vision camera 2 and a test piece 3. A transverse component is provided on the surface of one end of the base 1, a slide table 4 is slidably installed in the transverse component, and a test component is provided on the surface of the slide table 4. A bracket 5 is provided on the surface of the other end of the base 1, and the vision camera 2 is fixedly installed on the top of the bracket 5.

[0026] The test assembly includes a housing 6, which contains a test compartment 7 and a circuit compartment 8. A fixing plate 9 is fixedly installed in the test compartment 7. The fixing plate 9 has a sliding hole 10 and a positioning hole 11 on the side facing the vision camera 2. A power supply 12 is fixedly installed in the circuit compartment 8.

[0027] Furthermore, the transverse component includes a slide rail 13, a lead screw 14 is disposed between the slide rails 13, a drive motor 15 is connected to the input end of the lead screw 14, the slide rail 13 is slidably connected to the slide table 4, and the lead screw 14 is threadedly connected to the slide table 4.

[0028] Furthermore, a frosting glass 16 is fixedly installed on the side of the housing 6 facing the vision camera 2. The input terminal of the frosting glass 16 is located in the circuit compartment 8 and is electrically connected to the power supply 12.

[0029] It should be noted that: In its natural state, the liquid crystal molecules of the atomized glass 16 are randomly arranged, resulting in the glass being milky white and opaque. After being energized, the liquid crystal molecules are arranged in an orderly manner, making the glass transparent. This is existing technology and will not be elaborated on further.

[0030] The further advantage of the above is that after the power supply 12 powers the atomized glass 16, the atomized glass 16 becomes transparent. At this time, the performance of the vision camera 2 in target detection and image generation at different object distances can be tested. By reducing the current output of the power supply 12, the atomized glass 16 becomes semi-transparent. At this time, the vision camera 2 can only obtain a blurred image of the test piece 3 through the atomized glass 16, which realizes the function of simulating different imaging clarity scenes. Thus, the target detection and image processing performance of the vision camera 2 under clear or blurred images can be tested.

[0031] Furthermore, a pair of slide rods 17 are slidably connected inside the slide hole 10. A clamping plate 18 is fixedly connected to the end of the slide rod 17 closer to the vision camera 2, and an operation plate 19 is fixedly connected to the end of the slide rod 17 away from the vision camera 2. A fixing spring 20 matching the slide rod 17 is fixedly connected to the side of the operation plate 19 facing the slide rod 17.

[0032] Furthermore, a plug 21 aligned with the positioning hole 11 is fixedly connected to the side of the clamping plate 18 facing the fixing plate 9.

[0033] Furthermore, a shelf 22 is provided between the clamping plate 18 and the fixing plate 9. A positioning block 23 matching the positioning hole 11 is provided on one side of the shelf 22, and an insertion hole 24 matching the insertion block 21 is provided on the other side of the shelf 22. The test piece 3 is bonded to the side of the shelf 22 facing the vision camera 2.

[0034] The further advantage of adopting the above method is that after the placement plate 22 is fixed to the surface of the fixing plate 9 by the clamp 18, the test piece 3 is perpendicular to the vision camera 2. Since the test piece 3 is a three-dimensional object, it is closer to the actual application scenario of the vision camera 2, thereby improving the accuracy of the test parameters.

[0035] When using this utility model, the user opens the box 6 from the top, then pushes the operating plate 19. The operating plate 19 pushes the slide bar 17 to slide, so that the clamping plate 18 moves away from the fixed plate 9, providing the space required to place the shelf 22. At the same time, the fixing spring 20 is squeezed. Then, the shelf 22 is inserted into the positioning hole 11 through the positioning block 23 for initial fixation. Finally, the operating plate 19 is reset. During the reset of the operating plate 19, the clamping plate 18 is inserted into the insertion hole 24 through the insertion block 21 and fixed. After the operating plate 19 is reset, the elastic force of the fixing spring 20 pushes the operating plate 19 in the opposite direction, so that the clamping plate 18 squeezes the shelf 22 to achieve a fastening effect.

[0036] Before conducting the test, turn on the vision camera 2, and then power the frosted glass 16 through the power supply 12 to make it transparent.

[0037] During testing, the drive motor 15 drives the lead screw 14 to rotate, causing the lead screw 14 to move the slide table 4 along the slide rail 13 to a suitable position. Then, the vision camera 2 detects the test piece 3 at the current distance and generates an image. Because the test piece 3 is a three-dimensional object, it is closer to the actual application scenario of the vision camera 2, so the accuracy of the test parameters can be improved after the test is completed.

[0038] By reducing the current output of power supply 12, the frosted glass 16 becomes semi-transparent. At this time, the vision camera 2 can only obtain a blurred image of the test piece 3 through the frosted glass 16, thereby testing the target detection and image processing performance of the vision camera 2 under clear or blurred images.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A computer vision testing device, comprising a base (1), a vision camera (2), and a test piece (3), characterized in that, A transverse component is provided on the surface of one end of the base (1), a slide table (4) is slidably installed in the transverse component, a test component is provided on the surface of the slide table (4), a bracket (5) is provided on the surface of the other end of the base (1), and the vision camera (2) is fixedly installed on the top of the bracket (5). The test assembly includes a housing (6), which contains a test compartment (7) and a circuit compartment (8). A fixing plate (9) is fixedly installed in the test compartment (7). The fixing plate (9) has a sliding hole (10) and a positioning hole (11) on the side facing the vision camera (2). A power supply (12) is fixedly installed in the circuit compartment (8).

2. The computer vision experimental device according to claim 1, characterized in that: The transverse component includes a slide rail (13), a lead screw (14) is provided between the slide rails (13), the input end of the lead screw (14) is connected to a drive motor (15), the slide rail (13) is slidably connected to the slide table (4), and the lead screw (14) is threadedly connected to the slide table (4).

3. The computer vision experimental device according to claim 1, characterized in that: A frosting glass (16) is fixedly installed on the side of the housing (6) facing the vision camera (2). The input end of the frosting glass (16) is located in the circuit compartment (8) and is electrically connected to the power supply (12).

4. The computer vision experimental device according to claim 1, characterized in that: The sliding hole (10) is slidably connected with sliding rods (17) arranged in pairs. The end of the sliding rod (17) closer to the vision camera (2) is fixedly connected with a clamp (18), and the end of the sliding rod (17) away from the vision camera (2) is fixedly connected with an operation plate (19). The side of the operation plate (19) facing the sliding rod (17) is fixedly connected with a fixing spring (20) matching the sliding rod (17).

5. The computer vision experimental device according to claim 4, characterized in that: The clamp (18) is fixedly connected to the side facing the fixing plate (9) with an insert (21) aligned with the positioning hole (11).

6. The computer vision experimental device according to claim 5, characterized in that: A shelf (22) is provided between the clamp (18) and the fixing plate (9). A positioning block (23) with a matching positioning hole (11) is provided on one side of the shelf (22), and an insertion hole (24) with a matching insertion block (21) is provided on the other side of the shelf (22).

7. The computer vision experimental device according to claim 6, characterized in that: The test piece (3) is bonded to the side of the placement plate (22) facing the vision camera (2).

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