Image testing device of image equipment

Abstract

The utility model provides an image testing device of image equipment. The image testing device comprises a shell, a touch screen, a control module and a plurality of light sources, the touch screen is arranged at the top of the shell, and the touch screen is in communication connection with the control module; the plurality of light sources are arranged on the surface of one side of the shell, and the controlled end of each light source is connected with the control end of the control module, so that the light sources are controlled by the control module to carry out brightness adjustment; the surface of the side, provided with the light source, of the shell is further provided with an image card support used for containing a gray scale film card. According to the utility model, the gray scale film card is placed on the graphic card support, and the plurality of light sources are adopted to provide a series of different brightness, so that the technical problem that the performance of the conventional gray scale test card is easily reduced or damaged due to frequent use or improper storage can be solved; and the brightness of each light source can be independently adjusted through the control module, so that different test requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of imaging equipment testing, in particular to an image testing device for imaging equipment. Background Art

[0002] As people's requirements for the imaging quality of imaging equipment become higher and higher, the testing categories for imaging equipment are also diverse, such as imaging details, image noise, dynamic range, etc. In the prior art, grayscale test cards are usually used to test the image processing performance of imaging equipment. By providing a series of grayscale color blocks of different brightness, it helps to evaluate the performance of imaging equipment when processing images with different brightness levels. The testing scope of grayscale test cards is wide, including but not limited to: (1) Photography and videography: grayscale test cards are used to test photographic equipment to ensure that the output photos can accurately restore the grayscale when printed or digitally output, thereby maintaining the quality and details of the image; (2) Digital image processing: grayscale test cards are used to test the color management and color correction of imaging equipment to ensure that the imaging equipment can accurately display or output the grayscale of the image; (3) Image noise and dynamic range test: a specific grayscale test card (such as a 3nh noise dynamic range test card) is used to test the image noise and dynamic range of digital cameras to evaluate the imaging performance of digital cameras.

[0003] However, grayscale test charts are prone to performance degradation or damage due to frequent use or improper storage, thus affecting their effectiveness. In addition, with the advancement of testing technology, image testing methods and standards may also continue to improve. The series of grayscale color blocks of different brightness provided by grayscale test charts are fixed, making it difficult to meet ever-changing testing needs. Utility Model Content

[0004] The utility model provides an image testing device for imaging equipment. By placing a grayscale film card on a chart holder and using a plurality of light sources to provide a series of different brightnesses, the utility model can solve the technical problem that the existing grayscale test card is prone to performance degradation or damage due to frequent use or improper storage. In addition, the brightness of each light source can be individually adjusted through a control module, thereby meeting different testing requirements.

[0005] In order to solve the above technical problems, the embodiment of the present utility model provides an image testing device for an imaging device, comprising a housing, a touch screen, a control module and a plurality of light sources;

[0006] The touch screen is arranged on the top of the shell, and the touch screen is communicatively connected to the control module; a plurality of light sources are arranged on a side surface of the shell, and a controlled end of each light source is connected to a control end of the control module so that the light source is controlled by the control module to adjust the brightness; a card holder for placing a grayscale film card is also provided on the side surface of the shell where the light source is arranged.

[0007] As a preferred solution, the brightness of each light source is different, and the brightness of the light source is 0.00874cd / m 2 ~73337.40544cd / m 2 within the range.

[0008] As a preferred solution, the number of the light sources is 24, the brightness of the 24 light sources forms 24 levels of brightness, and the ratio between each level of brightness and the next level of brightness is 1 / 2.

[0009] As a preferred solution, the device further comprises a plurality of light sensors, wherein the light sensors are mounted on the light source, and the signal output ends of the light sensors are connected to the signal input ends of the control module.

[0010] As a preferred solution, the device further comprises a handle, which is arranged on the top of the shell.

[0011] As a preferred solution, the device also includes a cooling fan; fan mounting ports are provided on the opposite side surfaces of the housing, the cooling fan is installed at the fan mounting ports, and the controlled end of the cooling fan is connected to the control end of the control module.

[0012] As a preferred solution, a plurality of heat dissipation holes are further provided on two opposite side surfaces of the shell.

[0013] As a preferred solution, the device further includes a power access module and a power switch module;

[0014] A power assembly port is provided on one side of the housing near the bottom, the power access module and the power switch module are installed in the power assembly port, and the output end of the power access module is connected to the power receiving end of the control module.

[0015] As a preferred solution, a communication interface is further provided on one side surface of the housing, and a signal output end of the communication interface is connected to a signal input end of the control module.

[0016] Compared with the prior art, the beneficial effect of the embodiments of the present invention is that, by placing a grayscale film card on a chart holder and using multiple light sources to provide a series of different brightnesses, it can solve the technical problem that the existing grayscale test chart is prone to performance degradation or damage due to frequent use or improper storage. In addition, the brightness of each light source can be individually adjusted through the control module to meet different testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a front view of an image testing device for an imaging device according to an embodiment of the present invention;

[0018] Figure 2 2. It is a top view of an image testing device for an imaging device according to an embodiment of the present invention;

[0019] Figure 3 This is a left side view of the image testing device of the imaging equipment in the embodiment of the present utility model;

[0020] Figure 4 This is a right side view of the image testing device of the imaging equipment in the embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the brightness arrangement of each light source in an embodiment of the present utility model;

[0022] Among them, 1. Shell; 2. Light source; 3. Graphic card holder; 4. Touch screen; 5. Handle; 6. Cooling fan; 7. Cooling hole; 8. Communication interface; 9. Power access module; 10. Power switch module. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 , an embodiment of the utility model provides an image testing device for an imaging device, comprising a housing 1, a touch screen 4, a control module and a plurality of light sources 2;

[0025] The touch screen 4 is arranged on the top of the housing 1, and the touch screen 4 is communicatively connected to the control module; a plurality of light sources 2 are arranged on a side surface of the housing 1, and a controlled end of each light source 2 is connected to a control end of the control module so that the light source 2 is controlled by the control module for brightness adjustment; a card holder 3 for placing a grayscale film card is also provided on the side surface of the housing 1 where the light source 2 is provided.

[0026] Specifically, the touch screen 4 is used to display the brightness adjustment interface of the light source 2 to the user, receive the user's touch signal, and then send the touch signal to the control module. The control module is used to individually adjust the brightness of the corresponding light source 2 in response to the received touch signal. It is understandable that based on actual testing needs, the user can enter the required specific brightness value in the brightness adjustment interface through the touch screen 4, or select various preset brightness levels, wherein each brightness level is pre-configured with a corresponding brightness value, ensuring the flexibility of the light source brightness adjustment while better meeting different testing needs. Furthermore, a side surface of the housing 1 on which the light source 2 is provided is also provided with a chart holder 3 for placing a grayscale film card, so that when image testing is required, the user can place the grayscale film card on the chart holder 3 so that the grayscale film card is located in front of each light source 2, and then the light emitted by each light source 2 passes through the grayscale film card to form a series of grayscale light sources 2 with different brightness.

[0027] It is worth noting that the image testing device for an imaging device provided in this embodiment is used as follows: During image testing, the tester places the test device in a darkroom, adjusts the brightness of each light source 2 using the touch screen 4, and places a grayscale film card on the chart holder 3. The imaging device under test is then placed a certain distance in front of the light source 2 and photographed. The photographic results are then used to evaluate the performance of the imaging device under test when processing images at different brightness levels.

[0028] As a preferred solution, the brightness of each light source 2 is different, and the brightness of the light source 2 is 0.00874 cd / m 2 ~73337.40544cd / m 2 within the range.

[0029] It is worth noting that in order to ensure the brightness stability of the light source 2, the brightness of the light source 2 is limited to 0.00874 cd / m 2 ~73337.40544cd / m 2 Within the range of , the brightness of each light source 2 is different and can be any value within the range, which is not specifically limited in this embodiment.

[0030] As a preferred solution, the number of the light sources 2 is 24, the brightness of the 24 light sources 2 forms 24 levels of brightness, and the ratio between each level of brightness and the next level of brightness is 1 / 2.

[0031] Specifically, in order to effectively test the performance of the image device under test when processing images of different brightness levels, this embodiment is provided with a default light source brightness arrangement, from a brightness of 0.00874 cd / m 2 At the beginning, each level of brightness is twice the brightness of the previous level, until the brightness reaches 73337.40544 cd / m 2 So far, a total of 24 brightness levels can be divided. Therefore, in this embodiment, the number of light sources 2 is set to 24, and each light source 2 corresponds to one of the brightness levels, ensuring that enough brightness levels can be provided to realize image testing of the imaging device to be tested.

[0032] As an optional embodiment, the brightness levels of the light sources 2 are arranged as follows: Figure 5 The brightness values ​​corresponding to each brightness level are shown in Table 1 below:

[0033] Table 1 Brightness level and brightness value comparison table

[0034]

[0035]

[0036] As a preferred solution, the device further comprises a plurality of light sensors, which are mounted on the light source 2 , and the signal output terminals of the light sensors are connected to the signal input terminals of the control module.

[0037] Specifically, in order to ensure that the brightness of each light source 2 can be maintained at the set target brightness value, this embodiment installs a light sensor on the light source 2, so that the light sensor can be used to measure the current brightness value of each light source 2 and transmit it to the control module. The control module adjusts the brightness of each light source 2 based on the set target brightness value and the currently measured brightness value to keep it at the target brightness value, thereby realizing negative feedback adjustment of the light source brightness.

[0038] As a preferred solution, the device further includes a handle portion 5 , which is provided on the top of the housing 1 .

[0039] Specifically, this embodiment provides a handle 5 on the top of the housing 1 to facilitate carrying by the user. As an optional embodiment, a handle 5 is provided on either side of the top of the housing 1, and the distance between the two handles 5 conforms to the width of the human shoulder, thereby improving the convenience of carrying.

[0040] As a preferred embodiment, the device also includes a cooling fan 6; fan mounting ports are provided on the opposite side surfaces of the housing 1, the cooling fan 6 is installed at the fan mounting ports, and the controlled end of the cooling fan 6 is connected to the control end of the control module.

[0041] Specifically, considering that the light source 2 may gradually reduce the brightness value emitted due to excessive temperature during operation, thereby affecting the image test results of the imaging device to be tested, this embodiment is able to improve the heat dissipation performance of the image testing device by assembling cooling fans 6 on the opposite side surfaces of the shell 1, and effectively avoid the situation where the light source 2 gradually reduces the brightness value emitted due to excessive temperature during operation.

[0042] As a preferred solution, a plurality of heat dissipation holes 7 are further provided on two opposite side surfaces of the housing 1 .

[0043] Specifically, in order to further improve the heat dissipation performance of the image testing device, this embodiment also provides a plurality of heat dissipation holes 7 on the opposite side surfaces of the shell 1. It can be understood that the shape of the heat dissipation holes 7 can be regular shapes such as circles, triangles, ellipses, regular polygons, etc., and other irregular shapes can also be used. This embodiment does not make specific limitations here.

[0044] As a preferred solution, the device further includes a power access module 9 and a power switch module 10;

[0045] A power supply assembly port is provided on one side of the housing 1 near the bottom, the power access module 9 and the power switch module 10 are installed in the power supply assembly port, and the output end of the power access module 9 is connected to the power receiving end of the control module.

[0046] Specifically, this embodiment provides a power assembly port on one side surface of the shell 1 near the bottom, which can ensure safety while facilitating the routing of the power cord. When the image testing device of this embodiment needs to be used, the external power supply is inserted into the power access module 9 through the power cord, and the power switch module 10 is controlled to turn on, thereby realizing power supply to the image testing device.

[0047] As a preferred solution, a communication interface 8 is further provided on one side surface of the housing 1 , and a signal output end of the communication interface 8 is connected to a signal input end of the control module.

[0048] Specifically, this embodiment provides users with access functions for external devices such as computers and mobile phones by setting a communication interface 8 on one side surface of the shell 1, so that users can use external devices such as computers and mobile phones to send brightness adjustment instructions of each light source 2 to the control module to achieve brightness adjustment of the light source 2.

[0049] The image testing device for imaging equipment provided by the embodiment of the present invention can solve the technical problem that existing grayscale test cards are prone to performance degradation or damage due to frequent use or improper storage by placing a grayscale film card on a card holder 3 and using multiple light sources 2 to provide a series of different brightnesses. In addition, the brightness of each light source 2 can be individually adjusted through a control module to meet different testing requirements.

[0050] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An image testing device for an imaging device, characterized in that: It includes a housing, a touch screen, a control module and several light sources; The touch screen is arranged on the top of the shell, and the touch screen is communicatively connected to the control module; a plurality of light sources are arranged on a side surface of the shell, and a controlled end of each light source is connected to a control end of the control module so that the light source is controlled by the control module to adjust the brightness; a card holder for placing a grayscale film card is also provided on the side surface of the shell where the light source is arranged.

2. The image testing device for imaging equipment according to claim 1, wherein: The brightness of each light source is different, and the brightness of the light source is 0.00874cd / m 2 ~73337.40544cd / m 2 within the range.

3. The image testing device for imaging equipment according to claim 2, wherein: The number of the light sources is 24, the brightness of the 24 light sources forms 24 levels of brightness, and the ratio between each level of brightness and the next level of brightness is 1 / 2.

4. The image testing device for imaging equipment according to claim 1, wherein: The device further comprises a plurality of light sensors, which are mounted on the light source, and the signal output ends of the light sensors are connected to the signal input ends of the control module.

5. The image testing device for imaging equipment according to claim 1, wherein: The device further comprises a handle portion, which is arranged on the top of the shell.

6. The image testing device for imaging equipment according to claim 1, wherein: The device also includes a heat dissipation fan; fan mounting openings are provided on opposite side surfaces of the housing, the heat dissipation fan is mounted on the fan mounting openings, and a controlled end of the heat dissipation fan is connected to a control end of the control module.

7. The image testing device for imaging equipment according to claim 1, wherein: A plurality of heat dissipation holes are also provided on two opposite side surfaces of the shell.

8. The image testing device for imaging equipment according to claim 1, wherein: The device also includes a power access module and a power switch module; A power assembly port is provided on one side of the housing near the bottom, the power access module and the power switch module are installed in the power assembly port, and the output end of the power access module is connected to the power receiving end of the control module.

9. The image testing device for imaging equipment according to claim 1, wherein: A communication interface is further provided on one side surface of the housing, and a signal output end of the communication interface is connected to a signal input end of the control module.

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