A target reporting system and method based on image processing

Abstract

The application discloses a target reporting system and method based on image processing, and the system comprises a target plate, a base, an image acquisition device and a data processing device. The target plate is provided with a target paper, and the target plate is slidably arranged on the base. The image acquisition device is used for acquiring a pre-firing image and a post-firing image of the target paper. The data processing device is used for analyzing the difference between the pre-firing image and the post-firing image, determining whether a firing trace is recognized, and if not, controlling the target plate to move forward and backward on the base, acquiring a moving image of the target plate by the image acquisition device, recognizing the firing trace in the moving image, determining the position of the firing trace on the target paper, and finally obtaining the corresponding ring number. The target plate is moved forward and backward quickly, the range of cracks of the target paper on the target plate is expanded under the blowing of air flow, so that the cracks can be accurately recognized, and the recognition accuracy can be greatly improved when the firing trace in the form of cracks exists.

Description

Technical Field

[0001] This application relates to the field of military training equipment technology, and in particular to a target reporting system and method based on image processing. Background Technology

[0002] In the daily military training of the troops, target practice is the most basic training subject. Target practice can effectively maintain or even improve shooting ability, thereby improving the combat effectiveness of military personnel.

[0003] Generally, target practice involves using firearms to shoot at target paper, leaving firing marks on the paper. The score is determined by identifying the location of these marks. Traditional target reporting relies primarily on manual observation. After shooting, personnel approach or use binoculars from a distance to observe the firing marks on the target paper and report the ring number corresponding to the location of the marks. This manual reporting method is inefficient; the reporting time is often several times, or even ten times, the shooting time, resulting in a prolonged overall training period. To address this issue, various automated target reporting technologies have been proposed, one of which is image-based automated target reporting, such as CN115690408A. These technologies analyze images of the target paper before and after shooting to quickly and relatively accurately determine the shooting score.

[0004] However, there are many possibilities for the shooting marks left on the target paper after shooting. One of them is that the target paper is penetrated by the bullet and only has cracks. The target paper around these cracks will naturally close up after the bullet passes through, making it difficult to observe such shooting marks. Therefore, this type of shooting mark cannot be effectively identified, resulting in a decrease in the accuracy of target reporting. Summary of the Invention

[0005] This application provides an image processing-based target reporting system and method to solve the problem that shot marks in the form of cracks cannot be accurately identified in the prior art.

[0006] On one hand, embodiments of this application provide an image processing-based target reporting system, including:

[0007] Target plate, with target paper set on it;

[0008] The base is located below the target plate, and the target plate is horizontally slidably mounted on the base.

[0009] An image acquisition device is positioned directly in front of the target board. The image acquisition device is used to acquire images of the target board before and after firing.

[0010] The data processing device is electrically connected with the image acquisition device and the base respectively, the data processing device analyzes the difference between the pre-firing image and the post-firing image, determines whether the shooting trace is recognized, if not, the data processing device controls the target plate to move forward and backward on the base, the image acquisition device acquires the moving image of the target plate, the data processing device recognizes the shooting trace in the moving image, determines the position of the shooting trace on the target paper, and finally obtains the corresponding ring number.

[0011] In a possible implementation, the data processing device compares the pre-firing image and the moving image, if there is a difference between the pre-firing image and the moving image, the data processing device extracts the difference area in the moving image and determines the center position of the difference area, and determines the ring number according to the position of the center position on the target paper.

[0012] In a possible implementation, the data processing device compares the pre-firing image and the post-firing image, determines whether there is a difference between the pre-firing image and the post-firing image, if not, the shooting trace is not recognized, if there is a difference, the data processing device extracts the difference area in the post-firing image and determines the center position of the difference area, and determines the corresponding ring number according to the position of the center position on the target paper.

[0013] In a possible implementation, the base comprises: a shell; a lead screw horizontally arranged inside the shell, the target plate has a stand column at the bottom, and a driving block at the bottom of the stand column is inserted into the inside of the shell and screwed on the lead screw; and a driving device for driving the lead screw to rotate.

[0014] In a possible implementation, one end of the lead screw is provided with a driven wheel, and a driving wheel is arranged on the rotating shaft of the driving device, and the driving wheel and the driven wheel are in transmission connection.

[0015] In a possible implementation, the data processing device is electrically connected with a display device, and the data processing device controls the display device to display the ring number after obtaining the ring number.

[0016] In a possible implementation, the data processing device is further electrically connected with a trigger switch, the trigger switch sends an acquisition instruction to the data processing device after being triggered, and the data processing device acquires the post-firing image under the control of the acquisition instruction.

[0017] On the other hand, the embodiment of the application also provides a target reporting method based on image processing, comprising:

[0018] acquiring the pre-firing image and the post-firing image of the target paper;

[0019] analyzing the difference between the pre-firing image and the post-firing image, determining whether the shooting trace is recognized, and controlling the target plate to move forward and backward on the base if the shooting trace is not recognized;

[0020] Collecting moving images of the target plate;

[0021] Identifying the shooting traces in the moving images, determining the positions of the shooting traces on the target paper, and finally obtaining the corresponding ring numbers.

[0022] The image processing-based target reporting system and method provided in the present application have the following advantages:

[0023] By quickly moving the target plate forward and backward, the range of the cracks in the target paper on the target plate is expanded under the blowing of the air flow, so that the cracks can be accurately identified, and the identification accuracy when the shooting traces in the form of cracks exist can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0025] Figure 1 A schematic diagram of the composition of an image processing-based target reporting system provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure inside the base provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the closed state of the cracks on the target paper provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the open state of the cracks on the target paper provided in an embodiment of the present application;

[0029] Figure 5 A flowchart of an image processing-based target reporting method provided in an embodiment of the present application.

[0030] Explanation of reference numerals: 100-target plate, 101-target paper, 102-crack, 110-stand, 111-driving block, 120-base, 121-housing, 122-screw rod, 123-driven wheel, 124-driving device, 125-driving wheel, 126-mounting plate, 200-image collecting device, 300-data processing device. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Figure 1 This is a schematic diagram illustrating the composition of an image processing-based target reporting system provided in an embodiment of this application. This application provides an image processing-based target reporting system, including:

[0033] Target plate 100, on which target paper 101 is provided;

[0034] The base 120 is located below the target plate 100, and the target plate 100 is horizontally slidably mounted on the base 120.

[0035] The image acquisition device 200 is positioned directly in front of the target plate 100. The image acquisition device 200 is used to acquire images of the target paper 101 before and after firing.

[0036] The data processing device 300 is electrically connected to the image acquisition device 200 and the base 120 respectively. The data processing device 300 analyzes the difference between the pre-shooting image and the post-shooting image to determine whether the shooting marks are identified. If no shooting marks are identified, the data processing device 300 controls the target plate 100 to move back and forth on the base 120. The image acquisition device 200 acquires the moving image of the target plate 100. The data processing device 300 identifies the shooting marks in the moving image, determines the position of the shooting marks on the target paper 101, and finally obtains the corresponding ring number.

[0037] For example, the target plate 100 can adopt a frame structure on which the target paper 101 can be removably set by means of adhesive, clamping or other means, that is, there are no other obstructions behind the target paper 101 in the shooting area, so that when the target plate 100 moves the target paper 101 back and forth quickly, air can impact most of the area of ​​the target paper 101 in front and behind.

[0038] In the embodiments of this application, such as Figure 2As shown, the bottom of the target plate 100 is provided with a column 110, and the bottom end of the column 110 is provided with a driving block 111. The base 120 comprises a housing 121, a screw rod 122 horizontally arranged inside the housing 121, the driving block 111 is inserted into the housing 121 and screwed on the screw rod 122, and a driving device 124 for driving the screw rod 122 to rotate. Therefore, when the driving device 124 works, the screw rod 122 can be driven to rotate, and since the driving block 111 is screwed on the screw rod 122, the screw rod 122 can drive the driving block 111 to move along the axial direction when the screw rod 122 rotates, thereby moving the target plate 100 and the target paper 101 back and forth.

[0039] Further, the top surface of the housing 121 is provided with a strip-shaped through hole parallel to the axial direction of the screw rod 122, and the width of the through hole is equivalent to the width of the driving block 111, so that the driving block 111 is inserted into the housing 121 through the through hole and finally screwed on the screw rod 122. It can be seen that the driving block 111 will be limited by the two sides of the through hole and will not rotate with the screw rod 122, and will move back and forth under the drive of the screw rod 122.

[0040] One end of the screw rod 122 is provided with a driven wheel 123, and the driving shaft of the driving device 124 is provided with a driving wheel 125, and the driving wheel 125 and the driven wheel 123 are in transmission connection. The transmission connection can adopt gear meshing transmission or belt transmission. Moreover, the inner wall of the housing 121 is provided with a horizontal mounting plate 126, and the driving device 124 such as a stepping motor, a servo motor or the like is mounted on the mounting plate 126. The driving device 124 comprises a driving body and a driving plate, and the driving plate is electrically connected with a data processing device 300, and after the data processing device 300 sends a control instruction to the driving plate, the driving plate drives the driving body to work under the control of the control instruction, thereby making the driving body rotate forward and reverse, and finally making the target plate 100 move back and forth.

[0041] Preferably, the driven wheel 123 and the driving wheel 125 can have a large gear ratio, and when the high-speed driving device 124 outputs rotation, the driven wheel 123 and the driving wheel 125 in transmission connection can slow down the rotation speed, thereby driving the target plate 100 to move back and forth at a high speed. In the process of moving back and forth, the cracks 102 on the target paper 101 caused by bullet shooting will be impacted by air, and when the impact of air is large enough, i.e. the moving speed of the target paper 101 is fast enough, the cracks 102 will be stretched, as shown in Figure 3 and 4 At this time, the cracks 102 can be easily observed, i.e. the characteristics of the cracks 102 in the collected moving image can be easily identified, so that the accuracy of the target shooting can be greatly improved.

[0042] In a possible embodiment, the data processing apparatus 300 compares the pre-firing image and the moving image, if there is a difference between the pre-firing image and the moving image, the data processing apparatus 300 extracts the difference area in the moving image, and determines the center position of the difference area, and determines the ring number according to the position of the center position on the target paper.

[0043] Exemplarily, the crack 102 on the target paper 101 is stretched due to the forward and backward movement of the target plate 100, and the stretched crack 102 forms an obvious difference with the pre-firing image. After the data processing apparatus 300 extracts the difference area where the obvious difference is located, a coordinate system of the entire target paper 101 is established, which can take the center of the target paper 101 as the origin, determine the coordinates of the center position of the difference area, calculate the distance between the coordinates and the origin of the coordinate system, and determine the ring number based on the distance.

[0044] In a possible embodiment, the data processing apparatus 300 compares the pre-firing image and the post-firing image, and determines whether there is a difference between the pre-firing image and the post-firing image. If there is no difference, the shooting trace is not identified. If there is a difference, the data processing apparatus 300 extracts the difference area in the post-firing image, and determines the center position of the difference area, and determines the corresponding ring number according to the position of the center position on the target paper.

[0045] Exemplarily, if the shooting causes the target paper 101 to break, the hole formed by the break will form an obvious difference with the pre-firing image. The area where the obvious difference is located is the difference area. After the data processing apparatus 300 extracts the difference area, a coordinate system of the entire target paper 101 is established, which can take the center of the target paper 101 as the origin, determine the coordinates of the center position of the difference area, calculate the distance between the coordinates and the origin of the coordinate system, and determine the ring number based on the distance.

[0046] In a possible embodiment, the data processing apparatus 300 is electrically connected with a display device. After the data processing apparatus 300 obtains the ring number, the data processing apparatus 300 controls the display device to display the ring number.

[0047] Exemplarily, the display device can be arranged behind the shooting person, i.e. near the target reporting person. Correspondingly, an audio playing device can also be electrically connected with the data processing apparatus 300. After the data processing apparatus 300 controls the display device to display the ring number, the data processing apparatus 300 can also control the audio playing device to report the ring number in the form of voice.

[0048] In a possible embodiment, the data processing apparatus 300 is also electrically connected with a trigger switch. After the trigger switch is triggered, the trigger switch sends a collection instruction to the data processing apparatus 300. The data processing apparatus 300 collects the post-firing image under the control of the collection instruction.

[0049] Exemplarily, the trigger switch can be manually controlled by the target reporter. When the shooter finishes a shot, the target reporter triggers the trigger switch by pressing or touching, thereby obtaining a post-shot image after the shot. When the target reporting system of the present application is powered on as a whole, the image acquisition device 200 can automatically obtain a pre-shot image.

[0050] The embodiment of the present application also provides a target reporting method based on image processing. As shown in the figure, the method comprises the following steps: Figure 5

[0051] S400, acquiring a pre-shot image and a post-shot image of the target paper 101;

[0052] S410, analyzing the difference between the pre-shot image and the post-shot image, determining whether the shot trace is recognized, and controlling the target plate 100 to move forward and backward on the base 120 if the shot trace is not recognized;

[0053] S420, acquiring a moving image of the target plate 100;

[0054] S430, recognizing the shot trace in the moving image, determining the position of the shot trace on the target paper 101, and finally obtaining the corresponding ring number.

[0055] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0056] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.​

Claims

1. An image processing based target reporting system, characterized in that, The application relates to a shooting target plate, which comprises the following parts: a target plate (100) in a frame structure, wherein target paper (101) is arranged on the target plate (100) in a removable manner through adhesion or clamping; a base (120) located below the target plate (100), wherein the target plate (100) is horizontally slidably arranged on the base (120); an image acquisition device (200) arranged in front of the target plate (100), wherein the image acquisition device (200) is used for acquiring a pre-shooting image and a post-shooting image of the target paper (101); and a data processing device (300) electrically connected with the image acquisition device (200) and the base (120) respectively, wherein the data processing device (300) analyzes the difference between the pre-shooting image and the post-shooting image, determines whether a shooting trace is recognized, and if not, controls the target plate (100) to move forward and backward on the base (120) so that a crack (102) on the target paper (101) caused by bullet shooting is stretched, a moving image of the target plate (100) is acquired by the image acquisition device (200), the data processing device (300) recognizes the shooting trace after the crack (102) is stretched in the moving image, determines the position of the shooting trace on the target paper (101), and finally obtains corresponding ring numbers. The base (120) comprises a housing (121), a lead screw (122) horizontally arranged inside the housing (121), a stand column (110) arranged at the bottom of the target plate (100), a driving block (111) arranged at the bottom of the stand column (110) and inserted into the housing (121) and screwed on the lead screw (122), a driving device (124) used for driving the lead screw (122) to rotate, a driven wheel (123) arranged at one end of the lead screw (122), a driving wheel (125) arranged on the rotating shaft of the driving device (124), and transmission connection between the driving wheel (125) and the driven wheel (123). The data processing device (300) compares the pre-shooting image and the moving image, extracts a difference area in the moving image if there is a difference between the pre-shooting image and the moving image, determines the center position of the difference area, and determines the ring numbers according to the position of the center position on the target paper. The data processing device (300) compares the pre-shooting image and the post-shooting image, determines whether there is a difference between the pre-shooting image and the post-shooting image, does not recognize the shooting trace if there is no difference, extracts a difference area in the post-shooting image if there is a difference, determines the center position of the difference area, and determines corresponding ring numbers according to the position of the center position on the target paper. The data processing device (300) is electrically connected with a display device, and the data processing device (300) controls the display device to display the ring numbers after the ring numbers are obtained. ​ ​ ​ ​ ​ 2. The image processing based target reporting system according to claim 1, wherein, ​ 3. The image processing based target reporting system according to claim 1, wherein, ​ 4. The image processing based target reporting system according to claim 1, wherein, ​ 5. The image processing based target reporting system according to claim 1, wherein, The data processing device (300) is also electrically connected with a trigger switch, which sends a collection instruction to the data processing device (300) after being triggered, and the data processing device (300) collects the post-firing image under the control of the collection instruction.

6. A method for reporting a target applied to the image processing-based target reporting system of claim 1, characterized in that, It comprises: Collecting pre-firing and post-firing images of the target paper (101); Analyzing the difference between the pre-firing and post-firing images to determine whether the shooting trace is identified, and if the shooting trace is not identified, controlling the target plate (100) to move forward and backward on the base (120); Collecting moving images of the target plate (100); Identifying the shooting trace in the moving image to determine the position of the shooting trace on the target paper (101), and finally obtaining the corresponding ring number.

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