CN113018830A - Automatic scoring device and scoring method for sports competition - Google Patents
Automatic scoring device and scoring method for sports competition Download PDFInfo
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- CN113018830A CN113018830A CN202110273535.6A CN202110273535A CN113018830A CN 113018830 A CN113018830 A CN 113018830A CN 202110273535 A CN202110273535 A CN 202110273535A CN 113018830 A CN113018830 A CN 113018830A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0605—Decision makers and devices using detection means facilitating arbitration
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B65/00—Implements for throwing ; Mechanical projectors, e.g. using spring force
- A63B65/08—Boomerangs ; Throwing apparatus therefor
Abstract
The invention belongs to the technical field of sports and sports, and particularly relates to an automatic scoring device for sports events, which comprises a shell, a chassis and a dart target, wherein the chassis is fixedly connected to the front side wall of the shell, the dart target is correspondingly connected to the outer side wall of the chassis, four supporting blocks are uniformly distributed and connected to the side wall of the shell outside the dart target, arc-shaped bent rods are fixedly connected between every two adjacent supporting blocks, the four arc-shaped bent rods are in one-to-one correspondence with four quadrants of the dart target, a moving block is sleeved on the outer side wall of each arc-shaped bent rod in a sliding manner, a control mechanism connected with the moving block is arranged on the side wall of each supporting block, a camera head opposite to the dart target is fixedly connected to the side wall of each moving block, and a connecting rod is fixedly connected to the. The four cameras are adopted to surround the outer side of the dart target and respectively correspond to the four quadrants of the dart target, so that the cameras can accurately acquire the positions of dart points.
Description
Technical Field
The invention relates to the technical field of sports, in particular to an automatic scoring device and method for sports competitions.
Background
Conventional dart games are conducted using dartboards, each contestant throwing three metal-tipped darts in turn, and the dartboards may be inspected according to rules of the game to determine their score. Scoring is traditionally done manually using a blackboard or electronic device such as a smartphone or tablet, which not only leaves the scorer at a hassle, but also reduces the speed of the game because scoring often cannot keep up with the speed at which players throw darts.
Through retrieval, the Chinese patent application No. CN201610001342.4, published as 2019-02-19, discloses an automatic scoring dart target device and an automatic scoring method of darts thereof. The device comprises a dart target, a plurality of camera units, a back screen and a processing module. The dart target is used for projecting darts. The camera unit and the dart target are arranged on the same plane, and a plurality of images are respectively captured in a way that the capturing directions are intersected. The back screen is arranged relative to the camera unit for the camera unit to generate background data. The processing module calculates the score value of the dart according to the background data and the darts of the two images. By this, the present invention can automatically calculate the score of a dart under the condition of using a conventional dart target.
The above documents still have a problem in use, the image pickup device in the counting device is in a constant position, and if the positions of multiple darts coincide with each other or are shielded, the image pickup device will make a large error in the shooting of the dart point, and it is not easy to accurately locate the dart.
Therefore, we propose an automatic scoring device and method for sports events to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an automatic scoring device and a scoring method for sports events.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic scoring device for sports events comprises a shell, a chassis and a dart target, wherein the chassis is fixedly connected to the front side wall of the shell, the dart target is correspondingly connected to the outer side wall of the chassis, four supporting blocks are uniformly distributed and connected to the side wall of the shell outside the dart target, an arc-shaped bent rod is fixedly connected between every two adjacent supporting blocks, the four arc-shaped bent rods are in one-to-one correspondence with four quadrants of the dart target, a moving block is sleeved on the outer side wall of each arc-shaped bent rod in a sliding mode, a control mechanism connected with the moving block is arranged on the side wall of each supporting block, a camera opposite to the dart target is fixedly connected to the side wall of each moving block, a connecting rod is fixedly connected to the side wall opposite to the shell, one end, far away from the moving block, of the connecting rod extends into the shell, and an arc-shaped opening, the multifunctional electric bicycle is characterized in that a driving mechanism connected with four connecting rods is arranged in the shell, mounting mechanisms connected with an external wall body are arranged on the left side wall and the right side wall of the shell, and a display used for scoring is fixedly connected to the upper end of the shell.
In foretell sports match automatic counting device, control mechanism includes the touch switch of fixed connection on the supporting shoe lateral wall, touch switch and actuating mechanism electric connection.
In foretell sports match automatic counting device, actuating mechanism includes fixed connection arc piece on the connecting rod lateral wall, four equal fixedly connected with branch on the relative lateral wall of arc piece, and four branches keep away from the same round plate of one end fixedly connected with of arc piece, fixedly connected with driving motor on the shells inner wall, the fixed cover of round plate is in driving motor's the drive shaft outside, driving motor and touch switch electric connection.
In foretell sports match automatic counting device, installation mechanism includes the bending plate of fixed connection on the casing lateral wall, the one end that the casing was kept away from to the bending plate is the level setting, and offers the mounting hole with outside wall connection on the lateral wall of bending plate.
In foretell sports match automatic counting device, be provided with the computer with camera electric connection in the casing, and be provided with treater and memory in the computer, its characterized in that, the output of treater is connected with image acquisition module, image processing module, feature identification module and feature generation module respectively, and one-way connection in proper order between image acquisition module, image processing module, feature identification module and the feature generation module, the one-way connection of output of feature generation module has the feature output module, one-way connection between feature output module and the memory.
In the automatic sports match counting device, the image acquisition module is used for acquiring image frames acquired by the network camera; the image processing module is used for separating the action area of the target image in the image frame to obtain an intermediate image; the characteristic identification module is used for inputting the intermediate image into the action identification model to identify key points and identifying actions corresponding to the action key points by adopting a density track method; the characteristic generating module is used for generating the classified action characteristic information into a three-dimensional virtual object; the characteristic output module is used for determining the action characteristics and outputting the action characteristic information to the memory.
An automatic scoring method for sports games comprises the following steps:
s1, in the process of competition, the participants can throw darts in sequence, and the darts stay on the dartboard after throwing;
s2, after each throwing is finished, the driving motor is started by the controller to enable the circular plate to rotate, the moving block is enabled to do circular motion on the outer side of the arc-shaped bent rod under the transmission of the connecting rod, and the driving motor is turned off after the moving block is attached to the touch switch on the supporting block;
s3, images in four quadrants of the dart target can be obtained through the cameras on the side walls of the four moving blocks, and the images are obtained based on the cameras and stored in storage equipment of the cameras;
s4, establishing the mapping relationship between the coordinate positions a1(u1, v1), a2(u2, v2), a3(u3, v3), a4(u4, v4) and the spatial coordinates a (X, Y, Z) of the dart points in the three-dimensional scene by using the camera, i.e. determining the positions of the dart points and transmitting the score data of the area to the display.
In the above automatic scoring method for sports games, the specific operations of the camera in step S4 to determine the location of the dart point are as follows:
1) motion time domain segmentation, wherein a camera can acquire images of a plurality of dart points, and segments the images into a plurality of clips and marks the clips as clip 1, clip 2 and clip 3.. clip n, and the step is based on that an automatic encoder independently judges the type of motion on each frame of a video sequence;
2) extracting the features in the clip 1, the clip 2 and the clip 3. the clip n, and extracting and identifying the features by a density track-based method;
3) and outputting the characteristics, namely outputting the characteristics into a memory of the computer.
In the above automatic scoring method for sports events, the density track method in step 2) further comprises the following steps:
A) removing background light flow caused by camera motion;
B) a characteristic normalization mode;
C) and (5) feature coding.
In the above automatic scoring method for sports events, the step a) further comprises the following operations:
a. matching the matching point pairs of the front frame and the rear frame by using a SURF (speeded up robust features) characteristic algorithm, wherein human body detection is used for eliminating the matching points of the human body region, so that the motion amount is large and the influence is large;
b. calculating a matching point pair by using an optical flow algorithm, and removing the matching point pair of the human body region;
c. combining the SURF matching point pairs and the optical flow matching point pairs, and estimating a homographic projection transformation matrix H of the front frame and the rear frame by using a RANSAC random sampling sequence consistency algorithm;
d. calculating to obtain the state I' of the current frame without the camera motion by using the inverse matrix of the matrix H;
e. calculating the optical flow of the frame I' after the camera movement is removed;
f. the optical flow algorithm Ft.
Compared with the prior art, the automatic scoring device and the scoring method for the sports competition have the advantages that:
1. in the invention, four cameras are adopted to surround the outer side of the dart target, and the four cameras respectively correspond to four quadrants of the dart target, namely, the cameras can accurately acquire the positions of dart points.
2. The cameras are connected through the driving mechanism, so that the positions of dart points can be acquired after one-time dart throwing, and data can be rapidly transmitted to the display, so that an artificial scoring mode is avoided, and the scoring efficiency is improved.
Drawings
FIG. 1 is a schematic external structural diagram of an automatic scoring device and method for sports events according to the present invention;
FIG. 2 is a schematic back view of an automatic scoring device and method for sports events according to the present invention;
FIG. 3 is a front view of an automatic scoring device and method for sports events according to the present invention;
FIG. 4 is a sectional view of the inside of the housing of the automatic scoring device and the scoring method for sports events according to the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 1;
FIG. 6 is a diagram of a structure of a camera used to collect images for an automatic scoring device and method for sports events according to the present invention;
fig. 7 is a method structure diagram of an automatic scoring device and scoring method for sports events according to the present invention.
In the figure, 1 shell, 2 chassis, 3 dart target, 4 supporting blocks, 5 arc-shaped bent rods, 6 moving blocks, 7 cameras, 8 connecting rods, 9 displays, 10 arc-shaped blocks, 11 supporting rods, 12 circular plates, 13 driving motors, 14 bending plates and 15 arc-shaped openings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples
Referring to fig. 1-6, an automatic scoring device for sports competition, including casing 1, chassis 2 and dartboard 3, chassis 2 fixed connection is on the preceding lateral wall of casing 1, and dartboard 3 corresponds and connects on the lateral wall of chassis 2, equipartition is connected with four supporting shoes 4 on the casing 1 lateral wall in the dartboard 3 outside, and equal fixedly connected with arc knee 5 between two adjacent supporting shoes 4, four arc knee 5 and four quadrants one-to-one of dartboard 3, sliding sleeve has the movable block 6 on the lateral wall of arc knee 5, be provided with the control mechanism who is connected with movable block 6 on the lateral wall of supporting shoe 4, control mechanism includes the touch switch of fixed connection on the lateral wall of supporting shoe 4, touch switch and actuating mechanism electric connection.
Wherein, the side wall of the moving block 6 is fixedly connected with a camera 7 opposite to the dart target 3, the side wall of the moving block 6 opposite to the shell 1 is fixedly connected with a connecting rod 8, one end of the connecting rod 8 far away from the moving block 6 extends into the shell 1, the side wall of the shell 1 is provided with an arc opening 15 corresponding to the connecting rod 8, a driving mechanism connected with four connecting rods 8 is arranged in the shell 1, the driving mechanism comprises arc blocks 10 fixedly connected on the side wall of the connecting rod 8, the side walls opposite to the four arc blocks 10 are all fixedly connected with supporting rods 11, one end of each supporting rod 11 far away from the arc block 10 is fixedly connected with the same circular plate 12, the inner wall of the shell 1 is fixedly connected with a driving motor 13, the circular plate 12 is fixedly sleeved outside the driving shaft of the driving motor 13, the driving motor 13 is electrically connected with a touch switch, the driving, the mobile block 6 can be contacted with the touch switches on two sides, so that a single camera 7 only moves in a corresponding quadrant, and the use stability is improved, furthermore, a computer electrically connected with the camera 7 is arranged in the shell 1, and a processor and a memory are arranged in the computer, the mobile terminal is characterized in that the output end of the processor is respectively connected with an image acquisition module, an image processing module, a feature recognition module and a feature generation module, the image acquisition module, the image processing module, the feature recognition module and the feature generation module are sequentially and unidirectionally connected, the output end of the feature generation module is unidirectionally connected with a feature output module, the feature output module is unidirectionally connected with the memory, and particularly, the image acquisition module is used for acquiring image frames acquired in the network camera; the image processing module is used for separating the action area of the target image in the image frame to obtain an intermediate image; the characteristic identification module is used for inputting the intermediate image into the action identification model to identify key points and identifying actions corresponding to the action key points by adopting a density track method; the characteristic generating module is used for generating the classified action characteristic information into a three-dimensional virtual object; the characteristic output module is used for determining the action characteristics and outputting the action characteristic information to the memory.
Wherein, all be provided with the installation mechanism of being connected with outside wall body about casing 1 on the lateral wall, installation mechanism includes bending plate 14 of fixed connection on casing 1 lateral wall, and bending plate 14 keeps away from the one end of casing 1 and is the level setting, and sets up the mounting hole of being connected with outside wall body on bending plate 14's the lateral wall, the dismouting of casing 1 and outside wall body of being convenient for, the upper end fixedly connected with of casing 1 is used for the display 9 of score.
Referring to fig. 7, an automatic scoring method for a sports game includes the following steps:
s1, in the process of competition, the participants can throw darts in sequence, and the darts stay on the dartboard after throwing;
s2, after each throwing is finished, the driving motor is started by the controller to enable the circular plate to rotate, the moving block is enabled to do circular motion on the outer side of the arc-shaped bent rod under the transmission of the connecting rod, and the driving motor is turned off after the moving block is attached to the touch switch on the supporting block;
s3, images in four quadrants of the dart target can be obtained through the cameras on the side walls of the four moving blocks, and the images are obtained based on the cameras and stored in storage equipment of the cameras;
s4, establishing the mapping relationship between the coordinate positions a1(u1, v1), a2(u2, v2), a3(u3, v3), a4(u4, v4) and the spatial coordinates a (X, Y, Z) of the dart points in the three-dimensional scene by using the camera, i.e. determining the positions of the dart points and transmitting the score data of the area to the display.
The specific operation of the camera in step S4 for determining the position of the dart point is:
1) motion time domain segmentation, wherein a camera can acquire images of a plurality of dart points, and segments the images into a plurality of clips and marks the clips as clip 1, clip 2 and clip 3.. clip n, and the step is based on that an automatic encoder independently judges the type of motion on each frame of a video sequence;
2) extracting the features in the clip 1, the clip 2 and the clip 3. the clip n, and extracting and identifying the features by a density track-based method;
3) and outputting the characteristics, namely outputting the characteristics into a memory of the computer.
Further, the density tracing method in step 2) further comprises the following steps:
A) removing background light flow caused by camera motion;
B) a characteristic normalization mode;
C) and (5) feature coding.
Further, the step a) further comprises the following operations:
a. matching the matching point pairs of the front frame and the rear frame by using a SURF (speeded up robust features) characteristic algorithm, wherein human body detection is used for eliminating the matching points of the human body region, so that the motion amount is large and the influence is large;
b. calculating a matching point pair by using an optical flow algorithm, and removing the matching point pair of the human body region;
c. combining the SURF matching point pairs and the optical flow matching point pairs, and estimating a homographic projection transformation matrix H of the front frame and the rear frame by using a RANSAC random sampling sequence consistency algorithm;
d. calculating to obtain the state I' of the current frame without the camera motion by using the inverse matrix of the matrix H;
e. calculating the optical flow of the frame I' after the camera movement is removed;
f. the optical flow algorithm Ft.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An automatic scoring device for sports games comprises a shell (1), a chassis (2) and a dart target (3), wherein the chassis (2) is fixedly connected to the front side wall of the shell (1), and the dart target (3) is correspondingly connected to the outer side wall of the chassis (2), and is characterized in that four supporting blocks (4) are uniformly distributed and connected to the side wall of the shell (1) outside the dart target (3), an arc-shaped bent rod (5) is fixedly connected between two adjacent supporting blocks (4), the four arc-shaped bent rods (5) are in one-to-one correspondence with four quadrants of the dart target (3), a moving block (6) is sleeved on the outer side wall of the arc-shaped bent rod (5) in a sliding manner, a control mechanism connected with the moving block (6) is arranged on the side wall of the supporting blocks (4), and a camera (7) opposite to the dart target (3) is fixedly connected to the side wall of the moving block (6), the movable block (6) is fixedly connected with a connecting rod (8) on the side wall opposite to the shell (1), one end, far away from the movable block (6), of the connecting rod (8) extends into the shell (1), an arc-shaped opening (15) corresponding to the connecting rod (8) is formed in the side wall of the shell (1), a driving mechanism connected with the four connecting rods (8) is arranged in the shell (1), mounting mechanisms connected with an external wall are arranged on the left side wall and the right side wall of the shell (1), and a display (9) used for scoring is fixedly connected to the upper end of the shell (1).
2. An automatic scoring device for sporting events according to claim 1 wherein the control mechanism comprises a touch switch fixedly attached to a side wall of the support block (4), the touch switch being electrically connected to the drive mechanism.
3. An automatic scoring device for sports events according to claim 2, wherein the driving mechanism comprises arc-shaped blocks (10) fixedly connected to the side walls of the connecting rod (8), four supporting rods (11) are fixedly connected to the opposite side walls of the arc-shaped blocks (10), one end of each supporting rod (11) far away from the corresponding arc-shaped block (10) is fixedly connected with the same circular plate (12), a driving motor (13) is fixedly connected to the inner wall of the casing (1), the circular plate (12) is fixedly sleeved outside the driving shaft of the driving motor (13), and the driving motor (13) is electrically connected with the touch switch.
4. An automatic scoring device for sports events according to claim 1, wherein the mounting mechanism comprises a bending plate (14) fixedly connected to the side wall of the housing (1), one end of the bending plate (14) far from the housing (1) is horizontally arranged, and the side wall of the bending plate (14) is provided with a mounting hole connected with an external wall.
5. An automatic scoring device for sports events according to claim 1, wherein a computer electrically connected with the camera (7) is arranged in the casing (1), and a processor and a memory are arranged in the computer, wherein the output end of the processor is respectively connected with the image acquisition module, the image processing module, the feature recognition module and the feature generation module, and the image acquisition module, the image processing module, the feature recognition module and the feature generation module are sequentially and unidirectionally connected with each other, the output end of the feature generation module is unidirectionally connected with the feature output module, and the feature output module is unidirectionally connected with the memory.
6. An automatic scoring method for sports events according to claim 5, wherein said image acquisition module is used for acquiring image frames collected by network cameras; the image processing module is used for separating the action area of the target image in the image frame to obtain an intermediate image; the characteristic identification module is used for inputting the intermediate image into the action identification model to identify key points and identifying actions corresponding to the action key points by adopting a density track method; the characteristic generating module is used for generating the classified action characteristic information into a three-dimensional virtual object; the characteristic output module is used for determining the action characteristics and outputting the action characteristic information to the memory.
7. An automatic scoring method for sports events, which is characterized by comprising the following steps:
s1, in the process of competition, the participants can throw darts in sequence, and the darts stay on the dartboard after throwing;
s2, after each throwing is finished, the driving motor is started by the controller to enable the circular plate to rotate, the moving block is enabled to do circular motion on the outer side of the arc-shaped bent rod under the transmission of the connecting rod, and the driving motor is turned off after the moving block is attached to the touch switch on the supporting block;
s3, images in four quadrants of the dart target can be obtained through the cameras on the side walls of the four moving blocks, and the images are obtained based on the cameras and stored in storage equipment of the cameras;
s4, establishing the mapping relationship between the coordinate positions a1(u1, v1), a2(u2, v2), a3(u3, v3), a4(u4, v4) and the spatial coordinates a (X, Y, Z) of the dart points in the three-dimensional scene by using the camera, i.e. determining the positions of the dart points and transmitting the score data of the area to the display.
8. The automatic scoring method for sports events according to claim 7, wherein the specific operations of the camera to determine the dart point position in step S4 are as follows:
1) motion time domain segmentation, wherein a camera can acquire images of a plurality of dart points, and segments the images into a plurality of clips and marks the clips as clip 1, clip 2 and clip 3.. clip n, and the step is based on that an automatic encoder independently judges the type of motion on each frame of a video sequence;
2) extracting the features in the clip 1, the clip 2 and the clip 3. the clip n, and extracting and identifying the features by a density track-based method;
3) and outputting the characteristics, namely outputting the characteristics into a memory of the computer.
9. An automatic scoring method for sports events according to claim 8, wherein the density trace method in step 2) further comprises the steps of:
A) removing background light flow caused by camera motion;
B) a characteristic normalization mode;
C) and (5) feature coding.
10. An automatic scoring method for sports events according to claim 9, further comprising the following operations in step a):
a. matching the matching point pairs of the front frame and the rear frame by using a SURF (speeded up robust features) characteristic algorithm, wherein human body detection is used for eliminating the matching points of the human body region, so that the motion amount is large and the influence is large;
b. calculating a matching point pair by using an optical flow algorithm, and removing the matching point pair of the human body region;
c. combining the SURF matching point pairs and the optical flow matching point pairs, and estimating a homographic projection transformation matrix H of the front frame and the rear frame by using a RANSAC random sampling sequence consistency algorithm;
d. calculating to obtain the state I' of the current frame without the camera motion by using the inverse matrix of the matrix H;
e. calculating the optical flow of the frame I' after the camera movement is removed;
f. the optical flow algorithm Ft.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247113A (en) * | 2021-10-26 | 2022-03-29 | 深圳创想电子技术有限公司 | Intelligent dart machine with distance measuring and scoring functions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247113A (en) * | 2021-10-26 | 2022-03-29 | 深圳创想电子技术有限公司 | Intelligent dart machine with distance measuring and scoring functions |
| CN114247113B (en) * | 2021-10-26 | 2022-11-15 | 深圳创想电子技术有限公司 | Intelligent dart machine with distance measuring and scoring functions |
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