CN111330245A - Virtual archery system and method - Google Patents
Virtual archery system and method Download PDFInfo
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- CN111330245A CN111330245A CN202010116768.0A CN202010116768A CN111330245A CN 111330245 A CN111330245 A CN 111330245A CN 202010116768 A CN202010116768 A CN 202010116768A CN 111330245 A CN111330245 A CN 111330245A
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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
- A63B69/00—Training appliances or apparatus for special sports
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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
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
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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
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
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Abstract
The invention discloses a virtual archery system, comprising: the image acquisition units are used for acquiring real-time motion image information in the arrow motion process; the system comprises a preprocessing unit, a data processing unit, a rendering unit and a releasing device, wherein the preprocessing unit preprocesses the real-time motion image information acquired by the image acquisition unit to remove noise and obtain preprocessed motion image data; and the data processing unit is used for carrying out data processing on the preprocessed moving image data to obtain an initial motion parameter when the arrow leaves the bow and an end motion parameter when the arrow contacts the curtain. The motion parameter measuring system does not need to install a sensor, so that the cost is greatly reduced, and the problems of accumulative error and inaccurate measuring result of the measuring result caused by the defects of drift and the like of the sensor are solved.
Description
Technical Field
The invention relates to the field of virtual archery, in particular to a virtual archery system and a virtual archery method.
Background
Archery sports are traditional sports in China and become Olympic games nowadays. At present, archery mainly comprises two aspects of entertainment and sports.
Traditional archery sports are mainly carried out in an online archery hall. The following disadvantages mainly exist: archery sites are generally long, occupied area is large, and land space resources are wasted greatly.
Archery performance depends on the archery posture of the archer. However, the traditional archery system has no data feedback after the archer finishes shooting, cannot perform quantitative analysis, and only can be guided by a coach qualitatively, so that the archery posture of the archer or athlete cannot be improved quickly and effectively, and the goal of improving the performance of the archer scientifically and effectively cannot be achieved.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art systems for measuring the kinetic parameters of an arrow, it is an object of the present invention to provide a virtual archery system, wherein the arrow is projected through an exit bow, into an archery area, into a pre-curtain area, and into contact with a curtain, in that order, the virtual archery system comprising:
the image acquisition units are used for acquiring real-time motion image information in the arrow motion process;
the preprocessing unit is connected with the image acquisition unit and used for preprocessing the real-time motion image information acquired by the image acquisition unit so as to remove noise and obtain preprocessed motion image data;
the data processing unit is connected with the image acquisition unit and is used for carrying out data processing on the preprocessed moving image data to obtain an initial motion parameter when the arrow leaves the bow and an end motion parameter when the arrow contacts the curtain;
the rendering unit is connected with the data processing unit and renders the flight path of the arrow according to the initial motion parameter of the moment when the arrow leaves the bow and the ending motion parameter of the moment when the arrow contacts the curtain;
and the throwing equipment is connected with the rendering unit and throws the flight track of the arrow on the curtain.
According to an embodiment of the present invention, the virtual archery system further includes a matching determination unit, which determines whether the arrow is successfully ejected, and generates a determination result.
According to an embodiment of the present invention, the virtual archery system further includes a control unit, which is connected to the matching determination unit and the data processing unit, and if the determination result generated by the matching determination unit indicates that the arrow is successfully ejected, the control unit controls the preprocessing unit to preprocess the real-time motion image data acquired by the image acquisition unit.
According to an embodiment of the present invention, in the virtual archery system, the moving image data includes spatial position information, a spatial attitude, and a velocity value.
According to an embodiment of the invention, the data processing unit of the virtual archery system comprises a spatial position information processing module, a spatial attitude processing module and a velocity value processing module.
According to an embodiment of the invention, the virtual archery system further comprises an arrow recovery unit, wherein the arrow recovery unit monitors the falling of the arrow, automatically collects the arrow and conveys the arrow to a specified position.
According to an embodiment of the invention, the virtual archery system, the spatial position information processing module calculates spatial position information of the arrow at the moment of shooting according to the position coordinates of the two image acquisition units and the parallax of the arrow in the same scene shot by the two image acquisition units at the same time;
the space attitude processing module is used for acquiring a disparity map according to two viewpoint images in the same scene shot by the two image acquisition units at the same time, and obtaining the shooting instant space attitude of the arrow through three-dimensional reconstruction;
the speed value processing module selects a certain moving point on the arrow as a detection object, and obtains the moving displacement of the moving point in a certain time difference through image frame difference so as to calculate the shooting instant speed value.
Another embodiment of the present invention further provides a virtual archery method, including the following steps:
1) acquiring real-time motion image information in the motion process of a target arrow;
2) preprocessing the real-time motion image information to remove noise and obtain preprocessed real-time motion image information;
3) performing data processing on the processed real-time motion image information to obtain an initial motion parameter when the arrow leaves the bow and an ending motion parameter when the arrow contacts the curtain;
4) rendering the flight path of the arrow according to the initial motion parameter of the moment when the arrow leaves the bow and the end motion parameter of the moment when the arrow contacts the curtain;
5) and throwing the flight track of the arrow on the curtain.
According to an embodiment of the present invention, the virtual archery method further includes, after the step 1), the steps of:
and judging whether the arrow is successfully ejected or not, and if so, continuing the step 2).
According to an embodiment of the present invention, the virtual archery method further includes, after the step 5), the steps of:
6) and monitoring the arrow to land on the ground, automatically collecting and conveying to a specified position.
The invention has the following beneficial effects: according to the invention, the rear half part of the flying physical space of the arrow is replaced by the virtual space, so that the problem of large space of the archery field is well solved, and the space is greatly saved. Posture data of the archer during archery can be captured through the high-speed camera, feedback is scientifically formed, and the archer is effectively helped to improve archery posture and improve archery performance. The arrow recycling and conveying unit realizes automation of arrow recycling and solves the problem of low archery efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a virtual archery system according to an embodiment of the present invention.
Fig. 2 is a schematic view of the arrangement of the archery area and the front curtain area in the above embodiment.
FIG. 3 is a flowchart illustrating a virtual archery method in the above embodiment.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
1-3 of the drawings, a virtual archery system according to a preferred embodiment of the present invention, wherein the arrow is shot sequentially through an exit bow event, an arrow exit bow event in an archery area, an arrow front area in a curtain area, and an arrow contact curtain event in a curtain area, and wherein an exit bow and a curtain contact are a normal archery process, the motion parameter measuring system comprises: the system comprises at least two image acquisition units 1, a preprocessing unit 2, a matching judgment unit 3, a control unit 4, a data processing unit 5, a rendering unit 6, a throwing device 7 and an arrow recovery unit 8. The image acquisition unit 1 is connected with the preprocessing unit 2, the data processing unit 3 is connected with the preprocessing unit 2, the control unit 4 is connected with the matching judgment unit 3 and the data processing unit 5, the rendering unit 6 is connected with the data processing unit 5, and the delivery device 7 is connected with the rendering unit 6.
The image acquisition unit 1 acquires real-time motion image information in the arrow motion process; the matching judgment unit 3 judges whether the arrow is successfully ejected or not, and generates a judgment result. If the judgment result generated by the matching judgment unit 3 is that the arrow is successfully ejected, the control unit 4 controls the preprocessing unit 2 to preprocess the real-time moving image data acquired by the image acquisition unit 1 so as to remove noise and obtain preprocessed moving image data; then the data processing unit 3 performs data processing on the preprocessed moving image data to obtain an initial motion parameter of the arrow when the arrow leaves the bow and an end motion parameter of the arrow when the arrow contacts the curtain, the rendering unit 6 renders the flight trajectory of the arrow according to the initial motion parameter of the arrow when the arrow leaves the bow and the end motion parameter of the arrow when the arrow contacts the curtain, and the throwing device 7 throws the flight trajectory of the arrow on the curtain. If the judgment result generated by the matching judgment unit 3 is that the arrow is not successfully ejected, no measure is subsequently taken. And the arrow recovery unit 8 monitors that the arrow falls to the ground, automatically collects the arrow and conveys the arrow to a specified position.
Wherein the archery field area comprises an archery area used for standing archers and carrying out archery operation and a screen front area in front of the curtain.
Specifically, the number of the image capturing units 1 is not particularly limited, and may be 2 or more than 2, and the number of the image capturing units 1 is 2 as described below. Two image acquisition unit 1 is high-speed camera A and high-speed camera B respectively, and the two separately sets up, all is located archery region top, for example high-speed camera A is directly over the archery region, and high-speed camera B is located the upper right side in archery region, makes a video recording to the archery region simultaneously.
Specifically, the data processing unit 5 includes a spatial position information processing module 51, a spatial attitude processing module 52, and a velocity value processing module 53.
Specifically, the data processing unit 3 performs data processing on the preprocessed moving image data, specifically:
the spatial position information processing module 51 calculates spatial position information of the arrow at the moment of shooting according to the position coordinates of the two image acquisition units 1 and the parallax of the arrow in the same scene shot by the two image acquisition units 1 at the same time; the spatial position information of the arrow is the spatial coordinates of the arrow.
The spatial attitude processing module 52 obtains a disparity map by using a stereo matching algorithm according to two viewpoint images in the same scene shot by the two image acquisition units 1 at the same time, and further obtains a depth map, and obtains the shooting instant spatial attitude of the arrow through three-dimensional reconstruction;
the velocity value processing module 53 selects a moving point on the arrow as a detection object, and obtains the moving displacement of the moving point within a certain time difference through an image frame difference to calculate the shooting instant velocity value.
The invention also provides a method for measuring the motion parameters of the arrow applied to the virtual archery system, which comprises the following steps:
s1, acquiring real-time motion image information in the motion process of the target arrow;
s2, judging whether the arrow is successfully ejected, and if the arrow is successfully ejected, continuing the subsequent operation S3; if the injection is not successful, ending;
s3, preprocessing the real-time motion image information to remove noise and obtain preprocessed real-time motion image information;
and performing data processing on the processed real-time motion image information to obtain an initial motion parameter when the arrow leaves the bow and an ending motion parameter when the arrow contacts the curtain.
S4, rendering the flight path of the arrow according to the initial motion parameter of the arrow at the moment when the arrow leaves the bow and the ending motion parameter of the arrow at the moment when the arrow contacts the curtain;
and S5, putting the flight path of the arrow on a curtain.
And S6, detecting the arrow to land on the ground, automatically collecting the arrow and conveying the arrow to a specified position.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A virtual archery system, wherein the arrow in the process of being shot passes through the exit bow, the entrance archery area, the entrance in front of the screen area and the contact screen in turn, the virtual archery system comprises:
the image acquisition units are used for acquiring real-time motion image information in the arrow motion process;
the preprocessing unit is connected with the image acquisition unit and used for preprocessing the real-time motion image information acquired by the image acquisition unit so as to remove noise and obtain preprocessed motion image data;
the data processing unit is connected with the image acquisition unit and is used for carrying out data processing on the preprocessed moving image data to obtain an initial motion parameter when the arrow leaves the bow and an end motion parameter when the arrow contacts the curtain;
the rendering unit is connected with the data processing unit and renders the flight path of the arrow according to the initial motion parameter of the moment when the arrow leaves the bow and the ending motion parameter of the moment when the arrow contacts the curtain;
and the throwing equipment is connected with the rendering unit and throws the flight track of the arrow on the curtain.
2. The virtual archery system of claim 1 further comprising a match determination unit that determines whether an arrow is successfully ejected, generating a determination result.
3. The virtual archery system according to claim 2, further comprising a control unit connected to the matching judgment unit and the data processing unit, wherein if the judgment result generated by the matching judgment unit is that the arrow is successfully ejected, the control unit controls the preprocessing unit to preprocess the real-time moving image data acquired by the image acquisition unit.
4. The virtual archery system of claim 1 wherein the motion image data includes spatial position information, spatial attitude, and velocity values.
5. The virtual archery system of claim 4 wherein the data processing unit includes a spatial position information processing module, a spatial attitude processing module, and a velocity value processing module.
6. The virtual archery system of claim 5 further comprising an arrow recovery unit that monitors the landing of an arrow and automatically collects and transports the arrow to a designated location.
7. The virtual archery system according to claim 6, wherein the spatial position information processing module calculates spatial position information of the arrow at the moment of shooting according to the position coordinates of the two image acquisition units and the parallax of the arrow in the same scene shot by the two image acquisition units at the same time;
the space attitude processing module is used for acquiring a disparity map according to two viewpoint images in the same scene shot by the two image acquisition units at the same time, and obtaining the shooting instant space attitude of the arrow through three-dimensional reconstruction;
the speed value processing module selects a certain moving point on the arrow as a detection object, and obtains the moving displacement of the moving point in a certain time difference through image frame difference so as to calculate the shooting instant speed value.
8. The virtual archery method of any one of claims 1-7 including the steps of:
1) acquiring real-time motion image information in the motion process of a target arrow;
2) preprocessing the real-time motion image information to remove noise and obtain preprocessed real-time motion image information;
3) performing data processing on the processed real-time motion image information to obtain an initial motion parameter when the arrow leaves the bow and an ending motion parameter when the arrow contacts the curtain;
4) rendering the flight path of the arrow according to the initial motion parameter of the moment when the arrow leaves the bow and the end motion parameter of the moment when the arrow contacts the curtain;
5) and throwing the flight track of the arrow on the curtain.
9. The virtual archery method of claim 8 further comprising, after step 1), the steps of:
and judging whether the arrow is successfully ejected or not, and if so, continuing the step 2).
10. The virtual archery method of claim 8 further comprising, after step 5), the steps of:
6) and monitoring the arrow to land on the ground, automatically collecting and conveying to a specified position.
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| CN202010116768.0A CN111330245A (en) | 2020-02-25 | 2020-02-25 | Virtual archery system and method |
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| CN202010116768.0A CN111330245A (en) | 2020-02-25 | 2020-02-25 | Virtual archery system and method |
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| CN104548599A (en) * | 2013-10-29 | 2015-04-29 | 西安景行数创信息科技有限公司 | Game device utilizing projection technology and induction technology |
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| CN106621312A (en) * | 2016-12-30 | 2017-05-10 | 深圳游视虚拟现实技术有限公司 | Simulated gunnery method and system based on virtual reality |
| CN107545229A (en) * | 2016-06-29 | 2018-01-05 | 卡西欧计算机株式会社 | Motion evaluation device, Motion evaluation method and recording medium |
| CN108981454A (en) * | 2018-07-26 | 2018-12-11 | 北京易玖科技有限公司 | Image recognition type gunnery system and its implementation |
| KR102005876B1 (en) * | 2017-04-28 | 2019-07-31 | (주)파이빅스 | Arrow for play equipment |
| RU2698839C1 (en) * | 2018-04-11 | 2019-08-30 | Войсковая часть 13991 | Shooting simulator for computer systems with digital camera |
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2020
- 2020-02-25 CN CN202010116768.0A patent/CN111330245A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548599A (en) * | 2013-10-29 | 2015-04-29 | 西安景行数创信息科技有限公司 | Game device utilizing projection technology and induction technology |
| CN104717514A (en) * | 2015-02-04 | 2015-06-17 | 四川长虹电器股份有限公司 | Multi-viewpoint image rendering system and method |
| CN107545229A (en) * | 2016-06-29 | 2018-01-05 | 卡西欧计算机株式会社 | Motion evaluation device, Motion evaluation method and recording medium |
| CN106621312A (en) * | 2016-12-30 | 2017-05-10 | 深圳游视虚拟现实技术有限公司 | Simulated gunnery method and system based on virtual reality |
| KR102005876B1 (en) * | 2017-04-28 | 2019-07-31 | (주)파이빅스 | Arrow for play equipment |
| RU2698839C1 (en) * | 2018-04-11 | 2019-08-30 | Войсковая часть 13991 | Shooting simulator for computer systems with digital camera |
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Application publication date: 20200626 |