A target plate for image fusion registration accuracy test

Abstract

The utility model belongs to the image fusion precision detection and outfield test technical field, concretely relates to a kind of for image fusion registration precision test target plate, including target plate bottom plate and four target plate baffle, target plate bottom plate is square, and the middle of target plate bottom plate is etched with openwork cross line, four corners of target plate bottom plate are evenly laid out with four mounting hole groups, every mounting hole group includes two mounting holes, and the extension line of connecting line between two mounting holes passes through the center of openwork cross line;Four target plate baffles are all square, and the area of target plate baffle is less than the area of target plate bottom plate, four target plate baffles are respectively arranged on four corners of target plate bottom plate, and the inclined slot corresponding with corresponding mounting hole group is respectively set on every target plate baffle.This device has the characteristics of adjustable line width, easy disassembly, suitable for indoor and outdoor, etc., can satisfy different precision test needs, especially suitable for the precision detection of low-light and infrared image fusion, and is convenient for outfield test carrying.

Description

Technical Field

[0001] This utility model belongs to the field of image fusion accuracy detection and field test technology, specifically relating to a target plate for testing image fusion registration accuracy. Background Technology

[0002] Low-light images perform excellently in low-light environments, while infrared images can penetrate interference such as fog and smoke, demonstrating strong penetrating power in completely dark environments. By fusing these two technologies, night vision devices can provide comprehensive and clear visual information in any complex environment. Whether in forests, deserts, or cities, the surrounding environment can be clearly observed, targets identified, and accurate judgments made. During the night vision device's fusion process, the image fusion registration accuracy needs to be tested.

[0003] Therefore, there is an urgent need for a target plate for testing the accuracy of image fusion registration that is highly applicable, has an adjustable test baseline width, and is easy to disassemble. Utility Model Content

[0004] To address the aforementioned deficiencies in existing technologies, this utility model provides a target plate for testing image fusion registration accuracy, comprising a target plate base plate and four target plate baffles. The target plate base plate is square, with a hollow crosshair etched in the center. Four mounting hole groups are evenly distributed at the four corners of the target plate base plate, each mounting hole group including two mounting holes, and the extension line connecting the two mounting holes passes through the center of the hollow crosshair. Simultaneously, the two mounting holes in each group are located on the angle bisectors of the four corners of the square target plate base plate.

[0005] All four target plate baffles are square, and the area of ​​each target plate baffle is smaller than the area of ​​the target plate base plate. The four target plate baffles are respectively set at the four corners of the target plate base plate. Each target plate baffle has a slanted groove corresponding to the corresponding mounting hole group. The slanted groove has an inclination angle of 45°. The target plate baffles can be fixed to the target plate base plate by mounting bolts and wing nuts, which facilitates disassembly, assembly and position adjustment. Optionally, the target plate base is made of aluminum plate with a thickness of 3-5mm.

[0006] Optionally, the target plate baffle is made of aluminum plate with a thickness of 1~3mm and a groove width of 8~10mm.

[0007] Optionally, multiple scale lines are provided in the four directions of the hollow cross, namely the top, bottom, left, and right, with a scale division of 10mm.

[0008] Specifically, the maximum range of the scale line is 250mm. Depending on the line width requirements of different hollow cross lines, the four target plate baffles can be tightened or extended simultaneously along the 45° inclined groove direction to change the line width of the hollow cross lines. The line width control range is 20~250mm to meet different precision requirements.

[0009] Optionally, a bracket is fixed below the target plate base. Multiple positioning screw holes are symmetrically arranged on the left and right sides of the top of the bracket. The target plate base can be fixedly connected to the positioning screw holes of the bracket by fixing bolts, so as to adjust the height of the target plate base.

[0010] Optionally, a base is fixed to the bottom of the bracket, and a support is fixed to the middle of the bracket.

[0011] Specifically, the support base serves to reinforce the support structure. For example, in the event of windy and sandy weather during field tests, heavy objects can be placed on the base and support base to ensure that the test target plate is not blown over by the wind.

[0012] This invention also includes other components that enable the target plate used for image fusion registration accuracy testing to function properly, all of which are conventional techniques in the field. Furthermore, any devices or components not specified in this invention employ conventional techniques in the field.

[0013] The beneficial effects of this utility model are: (1) Functional expansion: Compared with traditional paper and cloth target plates, this utility model adds the function of precision detection of low light and infrared fusion images, and has stronger adaptability. (2) Adjustable line width: It breaks away from the traditional design concept of fixed line width target plate. By sliding the target plate baffle, the line width of the hollow cross line can be adjusted within the range of 20~250mm to meet the test requirements of different precision. (3) Good portability: The target plate is detachable and can be disassembled without tools (disc nut design), making it easy to carry for field tests. (4) Strong wind resistance: The bracket, support seat and base are fastened together. In windy and sandy weather, heavy objects can be placed on the base and support seat to ensure that the target plate does not tip over. It is suitable for outdoor environments. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the target plate base of this utility model.

[0017] Figure 3 This is a schematic diagram of the target plate baffle of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of a target plate for testing image fusion registration accuracy provided in this embodiment of the present invention during actual use.

[0019] In the diagram: 1. Target plate base plate, 2. Target plate baffle, 3. Hollow cross line, 4. Mounting hole, 5. Slanted groove, 6. Scale line, 7. Bracket, 8. Positioning screw hole, 9. Base, 10. Support seat. Detailed Implementation

[0020] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0021] Example like Figure 1-4 As shown, this utility model embodiment provides a target plate for testing image fusion registration accuracy, including a target plate base plate 1 and four target plate baffles 2. The target plate base plate 1 is square and made of aluminum plate with a thickness of 4mm. A hollow cross line 3 is etched in the middle of the target plate base plate 1. Four mounting hole groups are evenly distributed at the four corners of the target plate base plate 1. Each mounting hole group includes two mounting holes 4, and the extension line of the line connecting the two mounting holes 4 passes through the center of the hollow cross line 3. At the same time, the two mounting holes 4 in each group are respectively located on the angle bisectors of the four corners of the square target plate base plate 1.

[0022] All four target plate baffles 2 are square, and the area of ​​the target plate baffle 2 is smaller than the area of ​​the target plate base plate 1. The target plate baffles 2 are made of aluminum plate and have a thickness of 2mm. The four target plate baffles 2 are respectively set at the four corners of the target plate base plate 1. Each target plate baffle 2 has a groove 5 corresponding to the corresponding mounting hole group. The inclination angle of the groove 5 is 45° and the width of the groove 5 is 9mm. The target plate baffle 2 can be fixed to the target plate base plate 1 by mounting bolts and wing nuts, which facilitates disassembly, assembly and position adjustment. In addition, multiple scale lines 6 are provided in the four directions of the hollow cross 3: top, bottom, left, and right. The scale line 6 has a graduation value of 10mm and a maximum range of 250mm. According to the different line width requirements of the hollow cross 3, the four target plate baffles 2 can be tightened or extended simultaneously along the 45° inclined groove 5 to change the line width of the hollow cross 3. The line width control range is 20~250mm to meet different precision requirements.

[0023] In addition, a bracket 7 is fixed below the target plate base 1. Multiple positioning screw holes 8 are symmetrically arranged on the left and right sides of the top of the bracket 7. The target plate base 1 and the positioning screw holes 8 of the bracket 7 can be fixed together by fixing bolts, thus adjusting the height of the target plate base 1. A base 9 is fixed to the bottom of the bracket 7, and a support seat 10 is fixed to the middle of the bracket 7. The support seat 10 serves to reinforce the bracket 7. If windy and sandy weather occurs during field testing, heavy objects can be placed on the base 9 and the support seat 10 to ensure that the test target plate is not blown over by the wind.

[0024] The working principle of this utility model is as follows: First, the carrier is assembled: the bracket 7, support seat 10 and base 9 are fastened together with screws. The support seat 10 reinforces the bracket 7, thus completing the assembly of the basic carrier of the device.

[0025] Next, the target plate is assembled: the target plate base plate 1 is placed on the bracket 7, and two fixing bolts are inserted into the positioning screw holes 8 at the same height on both sides of the bracket 7. The fixing bolts support the weight of the target plate base plate 1, thereby fixing the target plate base plate 1. Then, the four target plate baffles 2 are respectively placed in the four directions of the target plate base plate 1. The mounting bolts are passed through the mounting holes 4 of the target plate base plate 1 and the corresponding inclined grooves 5 of the target plate baffles 2, and the baffles are fixed on the target plate base plate 1 by using wing nuts for positioning.

[0026] Next, the line width is adjusted: according to the line width test requirements of different hollow cross lines 3, the four target plate baffles 2 are tightened or extended simultaneously along the 45° inclined groove 5 of the target plate baffle 2, and the line width of the hollow cross line 3 is measured through the scale line 6 on the target plate base plate 1 until the required line width is adjusted.

[0027] Subsequently, the height is adjusted: according to the test scenario requirements, the positioning screw holes 8 of the fixing bolts inserted into the bracket 7 are adjusted (different height holes are selected) to change the height of the target plate base plate 1 to meet the test requirements of different observation distances.

[0028] Finally, it can be moved to the field for use: If there is windy and sandy weather during the field test, place heavy objects (such as sandbags) on the base 9 and support 10 to prevent the target plate from tipping over; during transportation, the target plate base plate 1 and target plate baffle 2 can be removed from the bracket 7 and transported separately. After arriving at the field, they can be reassembled for use.

[0029] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A target plate for testing image fusion registration accuracy, comprising a target plate base plate and four target plate baffles, characterized in that: The target plate base is square, with a hollow cross line etched in the middle. Four mounting hole groups are evenly distributed at the four corners of the target plate base. Each mounting hole group includes two mounting holes, and the extension line of the line connecting the two mounting holes passes through the center of the hollow cross line. All four target plate baffles are square, and the area of ​​each target plate baffle is smaller than the area of ​​the target plate base plate. The four target plate baffles are respectively set at the four corners of the target plate base plate, and each target plate baffle is provided with an inclined groove corresponding to the corresponding mounting hole group.

2. The target plate for testing image fusion registration accuracy according to claim 1, characterized in that: The target plate base is made of aluminum plate, and the thickness of the target plate base is 3~5mm.

3. The target plate for testing image fusion registration accuracy according to claim 1, characterized in that: The target plate baffle is made of aluminum plate with a thickness of 1~3mm and a groove width of 8~10mm.

4. The target plate for testing image fusion registration accuracy according to claim 1, characterized in that: The hollow crosshair has multiple scale lines in the four directions of top, bottom, left, and right, with each scale line having a graduation value of 10mm.

5. The target plate for testing image fusion registration accuracy according to claim 1, characterized in that: A bracket is fixed below the target plate base, and multiple positioning screw holes are symmetrically arranged on the left and right sides of the top of the bracket.

6. The target plate for testing image fusion registration accuracy according to claim 5, characterized in that: The bottom of the bracket is fixed with a base, and the middle of the bracket is fixed with a support.

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