A camera detection device and a detection method for contrast detection probability

Abstract

The present application discloses a camera detection device and a detection method for contrast detection probability. The camera detection device at least includes: a box body, a telescopic component, two first support components, two second support components, two first light box components and two first detection components; the two first light box components are respectively arranged in the box body through a first support component; one end of the two second support components are respectively connected to the two first light box components, and the other end is connected to the telescopic component; the two first detection components are respectively arranged on the light-emitting surfaces of the two first light box components. The camera detection device proposed in the present application can acquire data for contrast detection probability test, blur test, flicker test and high dynamic range test, integrates the four tests into one, and simplifies the test space and test process. The contrast detection probability detection method proposed in the present application can effectively reduce the interference caused by distortion for wide-angle lenses.

Description

Technical Field

[0001] The present application belongs to the field of camera detection technology, and specifically relates to a camera detection device and a detection method for contrast detection probability. Background Art

[0002] With the continuous development of automated driving assistance systems, the safety and effectiveness tests of the camera systems of Advanced Driving Assistance Systems (ADAS) have become extremely important. If they fail to meet the standards, it will lead to misjudgment, causing driving dangers and bringing safety hazards to users. The relevant test items include contrast detection probability (CDP) test, blur test, flicker test and high dynamic range test. The camera system is evaluated through the above four tests to ensure the quality of the camera system.

[0003] In the field of automotive cameras, the field of view (FOV) of the camera is often relatively large, up to 190 degrees, which can easily cause distortion when taking pictures. This distortion will interfere with the CDP test, so it needs to be removed as much as possible during the test. Summary of the invention

[0004] In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the present application is to provide a camera detection device and a detection method for contrast detection probability.

[0005] To solve the above technical problems, this application is implemented through the following technical solutions:

[0006] The present application proposes a camera detection device, which at least includes: a box body, a telescopic component, two first support components, two second support components, two first light box components and two first detection components; the two first light box components are respectively arranged in the box body through one first support component; one end of the two second support components are respectively connected to the two first light box components, and the other end is connected to the telescopic component; the two first detection components are respectively arranged on the light-emitting surfaces of the two first light box components.

[0007] Furthermore, in the above-mentioned camera detection device, the first supporting assembly includes: a first movable part, a slider and a sliding rod; the first movable part is connected to the box body, the first movable part is connected to the sliding rod through the slider, and the sliding rod is connected to the first light box assembly.

[0008] Furthermore, in the above-mentioned camera detection device, the second supporting assembly includes: a second movable member and a connecting rod; one end of the second movable member is connected to the first light box assembly, the other end of the second movable member is connected to the connecting rod, and the connecting rod is connected to the telescopic assembly.

[0009] Furthermore, in the above-mentioned camera detection device, the telescopic component includes: a connecting plate, a screw rod, a reducer and a motor; the connecting plate is connected to the connecting rod, the screw rod is connected to the connecting plate, the reducer is sleeved on the screw rod, and the motor is connected to the reducer.

[0010] Furthermore, in the above-mentioned camera detection device, the first detection component includes: a grayscale block gradient plate.

[0011] Furthermore, the above-mentioned camera detection device further includes: a calibration piece, which is arranged opposite to the first detection piece.

[0012] Furthermore, in the above-mentioned camera detection device, the calibration component includes: a brightness detection board.

[0013] Furthermore, the above-mentioned camera detection device, among others, also includes: a second light box assembly, a rotating assembly, a second detection member, a third detection member, a first sliding assembly, a second sliding assembly and a light-emitting plate; the second light box assembly is arranged on the box body; the second detection member is arranged on the first sliding assembly, the first sliding assembly is arranged in the box body, and is located on the light-emitting surface side of the first light box assembly; the light-emitting plate is arranged on the second sliding assembly, the second sliding assembly is arranged in the box body, and is located between the first sliding assembly and the first light box assembly; the rotating assembly is arranged in the box body, and is located between the first light box assembly and the second sliding assembly; the third detection member is arranged on the rotating assembly.

[0014] Furthermore, the above-mentioned camera detection device, among others, also includes: a third light box assembly, a fourth light box assembly and a control assembly; the third light box assembly, the fourth light box assembly and the control assembly are all arranged between the first sliding assembly and the second sliding assembly through a support frame.

[0015] Furthermore, in the above-mentioned camera detection device, the third light box component includes: a flashing light box.

[0016] Furthermore, in the above-mentioned camera detection device, the fourth light box component includes: a DC light box.

[0017] This application also proposes a contrast detection probability detection method, comprising the following steps:

[0018] Coarse adjustment: the camera to be detected is arranged in the housing of the camera detection device and arranged opposite to the first light box assembly; the telescopic assembly is adjusted according to the field of view of the camera to be detected, so as to deflect the first light box assembly to reduce the distortion effect of the camera to be detected;

[0019] Fine adjustment: photograph the first inspection piece with the camera to be inspected, and import the photographed image into the analysis system. When the analysis system determines that the photographed image is still distorted, further adjust the telescopic component until the analysis system determines that the photographed image is consistent with the fit of the first inspection piece;

[0020] Detection: Use the camera to be detected to shoot the first test piece, import the captured image into the analysis system, analyze its contrast detection probability, and output the detection result.

[0021] Furthermore, in the above-mentioned detection method of contrast detection probability, the consistency of the degree of fit means that the captured image and the first detection element are gridded and compared respectively, and when the grid coordinates of the two are consistent, the degrees of fit of the two are consistent.

[0022] Compared with the prior art, this application has the following technical effects:

[0023] The present application proposes a camera detection device, wherein a first support component is connected to a first light box component, and the first light box component is movably arranged in a box body; a second support component is connected to the first light box component, and both are connected to a telescopic component; a first detection component is arranged on the light-emitting surface of the first light box component; a camera to be detected is arranged in the box body, and is arranged opposite to the first detection component, through the above arrangement, so that the camera to be detected can complete a high dynamic range test; the two first light box components move relative to the box body under the drive of the telescopic component, and the whole can form an arc surface structure, so that the spherical tangent of the camera to be detected is as parallel as possible to the light-emitting surface of the first light box, thereby reducing the distortion effect of the camera to be detected due to the excessive field of view angle, so that the camera to be detected can complete the CDP test;

[0024] The camera detection device of the present application is also provided with a second light box assembly, a rotating assembly, a second detection member, a third detection member, a first sliding assembly, a second sliding assembly and a light emitting plate; the second light box assembly is arranged on the box body; the second detection member is arranged on the first sliding assembly, the first sliding assembly is arranged in the box body and is located on the light-emitting surface side of the first light box assembly; the light emitting plate is arranged on the second sliding assembly, the second sliding assembly is arranged in the box body and is located between the first sliding assembly and the first light box assembly; the rotating assembly is arranged in the box body and is located between the first light box assembly and the second sliding assembly; the third detection member is arranged on the rotating assembly; the camera to be detected is arranged in the box body and is arranged opposite to the second detection member. Through the above arrangement, the camera to be detected can complete the fuzziness test;

[0025] The camera detection device of the present application is also provided with a third light box assembly, a fourth light box assembly and a control assembly; the third light box assembly, the fourth light box assembly and the control assembly are all arranged between the first sliding assembly and the second sliding assembly through a support frame; the camera to be detected is arranged in the box body and is arranged relative to the third light box assembly, the fourth light box assembly and the control assembly. Through the above arrangement, the camera to be detected can complete the Flicker test;

[0026] The present application also proposes a detection method for contrast detection probability, which can effectively reduce the interference caused by distortion for wide-angle lenses and improve detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 : A schematic diagram of the structure of a camera detection device according to an embodiment of the present application;

[0029] Figure 2 : A schematic diagram of the structure of a camera detection device according to an embodiment of the present application;

[0030] Figure 3 : A schematic diagram of the structure of a camera detection device according to an embodiment of the present application;

[0031] Figure 4 :like Figure 1 a front view of the structure shown;

[0032] Figure 5 : Schematic diagram of a camera detection device according to an embodiment of the present application for reducing the effect of distortion;

[0033] Figure 6 : A schematic diagram of the application of the first supporting assembly in one embodiment of the present application;

[0034] Figure 7 : A schematic diagram of the application of the second supporting assembly in one embodiment of the present application;

[0035] Figure 8 : A schematic diagram of the application of the second supporting assembly in one embodiment of the present application;

[0036] Fig. 9 : A schematic diagram of a telescopic component in an application in an embodiment of the present application;

[0037] Fig.10 : A schematic diagram of a telescopic component in an application in an embodiment of the present application;

[0038] Fig.11: A schematic diagram of a first detection element in an embodiment of the present application;

[0039] Fig.12 : A schematic diagram of a structure in which a calibration piece is arranged in a box in one embodiment of the present application;

[0040] Fig.13 : A schematic diagram of the structure of a camera detection device in one embodiment of the present application;

[0041] Fig.14 : A schematic diagram of a rotating assembly in an application in an embodiment of the present application;

[0042] Fig.15 : A schematic diagram of the structure of a camera detection device according to an embodiment of the present application;

[0043] Fig.16 : A schematic diagram of the application of the second detection member and the first sliding component in one embodiment of the present application;

[0044] Fig.17 : A schematic diagram of a third detection element in an embodiment of the present application;

[0045] Fig.18 : A schematic diagram of the structure of a camera detection device according to an embodiment of the present application;

[0046] Fig.19 : Schematic diagram of the third light box assembly, the fourth light box assembly and the control assembly in application in one embodiment of the present application;

[0047] Fig. 20 : Schematic diagram of the third light box assembly, the fourth light box assembly and the control assembly in application in one embodiment of the present application;

[0048] Fig.21 : A schematic diagram of an analysis system in an embodiment of the present application;

[0049] In the figure: box 1, operation window 101, movable frame 102, crossbeam 103, bracket 104, shielding cavity 105, handle 106, telescopic component 2, connecting plate 201, screw 202, reducer 203, motor 204, coupling 205, first support component 3, first movable part 301, slider 302, slide rod 303, second support component 4, second movable part 401, connecting rod 402, first light box component 5, first detection component 6, calibration component 7, second light box component 8, rotating component 9, second detection component 10, third detection component 11, first sliding component 12, second sliding component 13, light averaging plate 14, third light box component 15, fourth light box component 16, control component 17, support frame 18, chassis 19, data receiving module 20, interference data analysis module 21, detection data analysis module 22 and result output module 23. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] like Figures 1 to 4 As shown, one of the embodiments of the present application, a camera detection device, comprises at least: a box body 1, a telescopic component 2, two first supporting components 3, two second supporting components 4, two first light box components 5 and two first detection components 6; the two first light box components 5 are respectively arranged in the box body 1 through one of the first supporting components 3; one end of the two second supporting components 4 are respectively connected to the two first light box components 5, and the other end are both connected to the telescopic component 2; the two first detection components 6 are respectively and correspondingly arranged on the light-emitting surfaces of the two first light box components 5.

[0052] In this embodiment, the number of first light box assemblies 5 is set to four, the number of first support assemblies 3 is set to four, the number of second support assemblies 4 is set to four, and the number of first detection members 6 is set to four. Those skilled in the art are motivated to adaptively increase or decrease the number. The four first support assemblies 3 are respectively connected to a first light box assembly 5, and the four first light box assemblies 5 are movably arranged in the box body 1; the four second support assemblies 4 are respectively connected to a first light box assembly 5, and are all connected to the telescopic assembly 2; the four first detection members 6 are respectively arranged on the light-emitting surfaces of the four first light box assemblies 5. The camera to be detected is arranged in the box body 1, and is arranged opposite to the first detection member 6. Through the above arrangement, the four first light box assemblies 5 move relative to the box body 1 driven by the telescopic assembly 2, and the whole can form a curved surface structure, such as Figure 5 As shown, the spherical tangent of the camera to be tested is made as parallel as possible to the light-emitting surface of the first light box, thereby reducing the distortion effect of the camera to be tested caused by the excessive field angle, so that the camera to be tested can complete the CDP test.

[0053] Preferably, the box body 1 is a closed structure to ensure that the detection environment is not disturbed by external light.

[0054] Optionally, an operation window 101 is provided on the box body 1, and the operation window 101 is provided with a door leaf with a handle 106 for manual operation.

[0055] Optionally, a movable frame 102 is provided at the bottom of the box body 1 to facilitate the displacement of the camera detection device.

[0056] like Figure 6 As shown, the first supporting assembly 3 includes: a first movable part 301, a slider 302 and a slide rod 303; the first movable part 301 is connected to the box body 1, the first movable part 301 is connected to the slide rod 303 through the slider 302, and the slide rod 303 is connected to the first light box assembly 5.

[0057] In this embodiment, the first movable member 301 is rotatably connected to the crossbeam 103 inside the box body 1, the first movable member 301 is connected to the slide bar 303 through the slider 302, and one end of the slide bar 303 is fixedly connected to the first light box assembly 5. Through the above arrangement, the first support assembly 3 can provide a reliable connection for the linear motion and angular deflection of the first light box assembly 5 in the box body 1.

[0058] like Figure 7 and Figure 8 As shown, the second supporting assembly 4 includes: a second movable part 401 and a connecting rod 402; one end of the second movable part 401 is connected to the first light box assembly 5, and the other end of the second movable part 401 is connected to the connecting rod 402, and the connecting rod 402 is connected to the telescopic assembly 2.

[0059] In this embodiment, one end of the second movable member 401 is fixedly connected to the first light box assembly 5, the other end of the second movable member 401 is movably connected to one end of the connecting rod 402, and the other end of the connecting rod 402 is fixedly connected to the telescopic assembly 2. Through the above arrangement, the telescopic assembly 2 drives the connecting rod 402 to move the first light box assembly 5 in the box body 1.

[0060] like Fig. 9 and Fig.10 As shown, the telescopic assembly 2 includes: a connecting plate 201, a screw rod 202, a reducer 203 and a motor 204; the connecting plate 201 is connected to the connecting rod 402, the screw rod 202 is connected to the connecting plate 201, the reducer 203 is sleeved on the screw rod 202, and the motor 204 is connected to the reducer 203.

[0061] In this embodiment, the screw rod 202 is connected to the connecting plate 201, the reducer 203 is sleeved on the screw rod 202, the motor 204 is connected to the reducer 203 through the coupling 205, and the first light box assembly 5 is connected to the connecting plate 201 through the second support assembly 4. Through the above configuration, the motor 204 drives the screw rod 202 to move through the reducer 203, so that the four first light box assemblies 5 connected to one connecting plate 201 move, and then the four first light box assemblies 5 form a curved surface structure as a whole, so as to reduce the distortion effect caused by the large field of view of the camera to be detected.

[0062] like Fig.11As shown, the first detection member 6 includes but is not limited to a gray scale block gradient plate.

[0063] In this embodiment, the first detection member 6 is a grayscale block gradient plate with 63 blocks. Those skilled in the art are motivated to adjust the number and style of the blocks of the first detection member 6 as needed.

[0064] like Fig.12 As shown, the camera detection device further includes: a calibration component 7, and the calibration component 7 is arranged opposite to the first detection component 6.

[0065] Optionally, the calibration component 7 includes but is not limited to a brightness detection board.

[0066] In this embodiment, the first light box assembly 5 and the box body 1 are both provided with a bracket 104 for placing the first detection member 6. When the camera detection device starts to detect the camera to be detected, the brightness of the first detection member 6 is first detected, and the same number of calibration members 7 as the first detection member 6 is set, that is, four calibration members 7 are set, and 63 brightness detectors are set on each calibration member 7 to match 63 blocks, and the brightness of each block is measured to ensure the accuracy of the final detection result of the camera to be detected. After the calibration member 7 has tested the brightness of the first detection member 6, the calibration member 7 is set on the bracket 104 in the box body 1 for easy access next time.

[0067] like Fig.13 As shown, in this embodiment, the above settings can also assist in implementing a high dynamic range test of the camera to be tested, and the specific operations are as follows:

[0068] 1) The camera to be detected is arranged in the box 1 and arranged opposite to the four first light box components 5;

[0069] 2) Turn on the four first light box assemblies 5 and set the four first light box assemblies 5 to different brightness;

[0070] 3) The camera to be inspected photographs the four first inspection pieces 6 to obtain photographed images for analysis.

[0071] Of course, when conducting a high dynamic range test, only one first light box assembly 5 may be set up, and the camera to be tested may be used to test the first light box assembly 5. After each shot, the brightness of the first light box assembly 5 may be adjusted to achieve the test effect of this embodiment.

[0072] like Figures 14 to 16As shown, the camera detection device also includes: a second light box component 8, a rotating component 9, a second detection component 10, a third detection component 11, a first sliding component 12, a second sliding component 13 and a light-emitting plate 14; the second light box component 8 is arranged on the box body 1; the second detection component 10 is arranged on the first sliding component 12, the first sliding component 12 is arranged in the box body 1, and is located on the light-emitting surface side of the first light box component 5; the light-emitting plate 14 is arranged on the second sliding component 13, the second sliding component 13 is arranged in the box body 1, and is located between the first sliding component 12 and the first light box component 5; the rotating component 9 is arranged in the box body 1, and is located between the first light box component 5 and the second sliding component 13; the third detection component 11 is arranged on the rotating component 9.

[0073] In this embodiment, the second light box assembly 8 is arranged on the top surface of the box body 1; the second detection member 10 is slidably arranged on the first sliding assembly 12, the first sliding assembly 12 is arranged in the box body 1 and is located on the light-emitting surface side of the first light box assembly 5; the number of the light-dispersing plates 14 is set to two, and the two light-dispersing plates 14 are slidably arranged in parallel on the second sliding assembly 13, the second sliding assembly 13 is arranged in the box body 1 and is located between the first sliding assembly 12 and the first light box assembly 5; the rotating assembly 9 is arranged in the box body 1 and is located between the first light box assembly 5 and the second sliding assembly 13; the third detection member 11 is arranged on the rotating assembly 9. Through the above settings, the blur test of the camera to be detected is assisted, and the specific operations are as follows:

[0074] 1) Close the first light box assembly 5;

[0075] 2) The two light-diffusing plates 14 are closed;

[0076] 3) Open the second light box assembly 8 and adjust the light according to the detection requirements;

[0077] 4) The camera to be detected is arranged in the box 1 and is arranged opposite to the light averaging plate 14;

[0078] 5) The second detection member 10 slides on the first sliding component 12;

[0079] 6) The camera to be inspected shoots the second inspection member 10 in motion to obtain an image for analysis;

[0080] 7) Opening the light-diffusing plates 14, that is, the two light-diffusing plates 14 move apart on the second sliding assembly 13;

[0081] 8) The camera to be inspected photographs the third inspection member 11 rotating with the rotating assembly to obtain the photographed image for analysis.

[0082] Optionally, the second detection member 10 includes but is not limited to a drawing board with an image, so as to facilitate the camera to be detected to analyze texture details.

[0083] Optionally, the first sliding assembly 12 and the second sliding assembly 13 include: a slide rail.

[0084] In this embodiment, the length of the slide rail is 2300 mm, and the effective stroke is 1700 mm; the first sliding assembly 12 can drive the second detection member 10 to move at a speed below 3 m / s. Of course, those skilled in the art are motivated to adjust its parameters adaptively.

[0085] Optionally, the rotating assembly 9 includes: a turntable, and the third detection member 11 is arranged on the turntable.

[0086] In this embodiment, the diameter of the turntable is 250 mm, and the rotation speed thereof is less than or equal to 360 r / min. Those skilled in the art are motivated to make adaptive adjustments to the above parameters.

[0087] like Fig.17 As shown, the third detection element 11 includes but is not limited to a grayscale block gradient plate of a four-level block, so as to facilitate the grayscale analysis of the camera to be detected.

[0088] Optionally, the second light box assembly 8 includes but is not limited to an LED (Light-Emitting Diode) lamp, that is, a light source capable of providing a variety of color temperatures and continuously adjustable brightness to provide supplementary light for the moving first detection element 6 .

[0089] Optionally, the second light box assembly 8 further includes a touch screen to facilitate the user to adjust the color temperature and brightness.

[0090] In this embodiment, the LED lamp simulates the ambient light to change. When the color temperature is 5000K, the maximum illumination at the bottom is about 8000lux, and the minimum illumination is within 10lux; the color temperature can be continuously adjusted between 2300K-10000K, the color rendering index of the light source is above 94, and it contains two-band infrared light sources of near-infrared 850nm and 940nm, which are adjustable in 1000 levels and can achieve mixed light of infrared and visible light; the luminous surface of the light source is 600mm*1200mm, and its uniformity is greater than 90%.

[0091] like Figures 18 to 20 As shown, the camera detection device also includes: a third light box assembly 15, a fourth light box assembly 16 and a control assembly 17; the third light box assembly 15, the fourth light box assembly 16 and the control assembly 17 are all arranged between the first sliding assembly 12 and the second sliding assembly 13 through a support frame 18.

[0092] In this embodiment, the third light box assembly 15, the fourth light box assembly 16 and the control assembly 17 are sequentially arranged in parallel on the same support frame 18, and those skilled in the art are motivated to adaptively adjust the number and positional relationship of the third light box assembly 15, the fourth light box assembly 16 and the control assembly 17. The support frame 18 of this embodiment is fixedly arranged between the second sliding assembly 13 and the first light box assembly 5, and the light scattering plate 14 is provided with an avoidance position of the support frame 18, so that the third light box assembly 15, the fourth light box assembly 16 and the control assembly 17 are located between the first sliding assembly 12 and the second sliding assembly 13. Through the above arrangement, the Flicker test of the camera to be tested is assisted, and the specific operation is as follows:

[0093] 1) Close the first light box assembly 5 and the second light box assembly 8;

[0094] 2) The two light-diffusing plates 14 are closed;

[0095] 3) Move the first detection member 6 into the shielding cavity 105 of the box body 1;

[0096] 4) The camera to be detected is arranged in the box 1 and is arranged opposite to the light averaging plate 14;

[0097] 5) Open the third light box assembly 15 and the fourth light box assembly 16;

[0098] 6) The camera to be tested captures the flashing third light box assembly 15, the always-on fourth light box assembly 16 and the control assembly 17 to obtain captured images for analysis.

[0099] Optionally, the third light box assembly 15 includes but is not limited to a flashing light box to provide a flashing light source, including: a light source that flickers and a light source that flashes continuously.

[0100] Optionally, the fourth light box assembly 16 includes but is not limited to a DC light box to provide a long-bright light source, that is, a light source that does not flicker.

[0101] Optionally, the contrast component 17 includes but is not limited to a light box shell to provide a non-luminous contrast.

[0102] Optionally, the camera detection device also includes a chassis 19, which is connected to the first light box assembly 5, the second light box assembly 8, the third light box assembly 15, the fourth light box assembly 16, the rotating assembly 9, the first sliding assembly 12 and the second sliding assembly 13, and the chassis 19 is arranged on the mobile frame 102.

[0103] On the other hand, the present application also proposes a method for detecting contrast detection probability, comprising the following steps:

[0104] Coarse adjustment: the camera to be detected is arranged in the housing 1 of the camera detection device and arranged opposite to the first light box assembly 5; the telescopic assembly 2 is adjusted according to the field of view of the camera to be detected, so that the four first light box assemblies 5 are deflected to reduce the distortion effect of the camera to be detected;

[0105] Fine adjustment: photograph the four first detection members 6 with the camera to be inspected, and import the photographed images into the analysis system. When the analysis system determines that the photographed images are still distorted, further adjust the telescopic component 2 until the analysis system determines that the photographed images are consistent with the fit of the first detection members 6;

[0106] Detection: Use the camera to be detected to shoot the first detection part 6, import the captured image into the analysis system, and analyze its contrast detection probability. In this embodiment, the contrast detection probability of each grayscale block on the grayscale block gradient plate of each 63-level block captured at different brightness is analyzed, and the detection result is output.

[0107] In this embodiment, the detection method of contrast detection probability can effectively reduce the interference caused by distortion of the wide-angle lens and improve the detection accuracy.

[0108] like Fig.21 As shown, the analysis system includes: a data receiving module 20, an interference data analysis module 21, a detection data analysis module 22 and a result output module 23; the data receiving module 20 is connected to the interference data analysis module 21 and transmits the received captured image data to the interference data analysis module 21, the interference data analysis module 21 is connected to the result output module 23 and transmits the interference result information to the result output module 23; the data receiving module 20 is connected to the detection data analysis module 22 and transmits the received captured image data to the detection data analysis module 22, the detection data analysis module 22 is connected to the result output module 23 and transmits the detection result information to the result output module 23.

[0109] Specifically, the consistency of the degree of fit means that the captured image and the first detection member 6 are respectively gridded and compared, and when the grid coordinates of the two are consistent, the degrees of fit of the two are consistent.

[0110] Those skilled in the art are motivated to adjust the grid density according to the accuracy requirements. The denser the grid, the more coordinate reference points there are, and the higher the fitting accuracy.

[0111] Specifically, the interference result information refers to information on whether the degree of fit is consistent or not.

[0112] Specifically, the detection result information refers to: contrast detection probability.

[0113] The camera detection device proposed in this application can acquire data for the contrast detection probability test, blur test, flicker test and high dynamic range test of the camera to be detected, integrating the four tests into one, streamlining the test space and test process, and saving manpower and material resources. The contrast detection probability detection method proposed in this application can effectively reduce the interference caused by distortion for wide-angle lenses and improve detection accuracy.

[0114] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0115] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0116] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0117] The above embodiments are only used to illustrate the technical solution of the present application but not to limit it. The present application is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A camera detection device, characterized in that: At least: A box body, a telescopic assembly, four first supporting assemblies, four second supporting assemblies, four first light box assemblies and four first detection components; The four first light box components are respectively arranged in the box body through one first support component; the first support component includes: a first movable member, a slider and a slide bar; the first movable member is connected to the box body, the first movable member is connected to the slide bar through the slider, and the slide bar is connected to the first light box component; One end of the four second supporting components is connected to the four first light box components respectively, and the other end is connected to the telescopic component; the four first detecting members are respectively arranged on the light-emitting surfaces of the four first light box components; the second supporting component includes: a second movable member and a connecting rod; one end of the second movable member is connected to the first light box component, the other end of the second movable member is connected to the connecting rod, and the connecting rod is connected to the telescopic component; The telescopic assembly includes: a connecting plate, a screw rod, a reducer and a motor; the connecting plate is connected to the connecting rod, the screw rod is connected to the connecting plate, the reducer is sleeved on the screw rod, and the motor is connected to the reducer through a coupling; the motor drives the screw rod to move through the reducer, so that the four first light box assemblies connected to one of the connecting plates move and form an arc surface structure.

2. The camera detection device according to claim 1, characterized in that: The first detection component includes: a gray scale block gradient plate.

3. The camera detection device according to claim 1, characterized in that: Also includes: A calibration piece, wherein the calibration piece is arranged opposite to the first detection piece.

4. The camera detection device according to claim 3, characterized in that: The calibration component includes: a brightness detection board.

5. The camera detection device according to claim 1, characterized in that: Also includes: A second light box assembly, a rotating assembly, a second detection member, a third detection member, a first sliding assembly, a second sliding assembly and a light emitting plate; the second light box assembly is arranged on the box body; the second detection member is arranged on the first sliding assembly, the first sliding assembly is arranged in the box body and is located on the light emitting surface side of the first light box assembly; the light emitting plate is arranged on the second sliding assembly, the second sliding assembly is arranged in the box body and is located between the first sliding assembly and the first light box assembly; the rotating assembly is arranged in the box body and is located between the first light box assembly and the second sliding assembly; the third detection member is arranged on the rotating assembly; The second detection component includes: a drawing board with an image; the third detection component includes: a grayscale block gradient plate of a four-level block.

6. The camera detection device according to claim 5, characterized in that: Also includes: A third light box assembly, a fourth light box assembly and a contrast assembly; the third light box assembly, the fourth light box assembly and the contrast assembly are all arranged between the first sliding assembly and the second sliding assembly through a supporting frame.

7. The camera detection device according to claim 6, characterized in that: The third light box assembly includes: a flashing light box.

8. The camera detection device according to claim 6, characterized in that: The fourth light box assembly includes: a DC light box.

9. A method for detecting contrast detection probability, characterized in that: The steps include: Coarse adjustment: the camera to be detected is arranged in the box of the camera detection device according to any one of claims 1 to 8 and is arranged opposite to the first light box component; the telescopic component is adjusted according to the field of view of the camera to be detected, so that the first light box component is deflected to reduce the distortion effect of the camera to be detected; Fine adjustment: photograph the first inspection piece with the camera to be inspected, and import the photographed image into the analysis system. When the analysis system determines that the photographed image is still distorted, further adjust the telescopic component until the analysis system determines that the photographed image is consistent with the fit of the first inspection piece; Detection: Use the camera to be detected to shoot the first test piece, import the captured image into the analysis system, analyze the contrast detection probability of each grayscale block gradient plate of the first test piece at different brightness, and output the detection result.

10. The method for detecting contrast detection probability according to claim 9, characterized in that: The consistency of the degree of fit means that the captured image and the first detection member are respectively gridded and compared, and when the grid coordinates of the two are consistent, the degrees of fit of the two are consistent.

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