KR20170052969A - A trajectory analysis device of a golf ball for a screen golf system - Google Patents
A trajectory analysis device of a golf ball for a screen golf system Download PDFInfo
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- KR20170052969A KR20170052969A KR1020150155140A KR20150155140A KR20170052969A KR 20170052969 A KR20170052969 A KR 20170052969A KR 1020150155140 A KR1020150155140 A KR 1020150155140A KR 20150155140 A KR20150155140 A KR 20150155140A KR 20170052969 A KR20170052969 A KR 20170052969A
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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
- A63B69/36—Training appliances or apparatus for special sports for golf
- A63B69/3658—Means associated with the ball for indicating or measuring, e.g. speed, direction
-
- 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
-
- 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
- A63B71/0686—Timers, rhythm indicators or pacing apparatus using electric or electronic means
-
- 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
- A63B2024/0028—Tracking the path of an object, e.g. a ball inside a soccer pitch
-
- 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
- A63B2024/0028—Tracking the path of an object, e.g. a ball inside a soccer pitch
- A63B2024/0031—Tracking the path of an object, e.g. a ball inside a soccer pitch at the starting point
-
- 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
- A63B2071/0675—Input for modifying training controls during workout
- A63B2071/0677—Input by image recognition, e.g. video signals
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Studio Devices (AREA)
Abstract
An apparatus for analyzing a golf ball trajectory of a screen golf system is disclosed. A golf ball trajectory analyzer includes: a ball trigger signal generator for sensing movement of a golf ball at an initial position and generating a ball trigger signal at a moving time; A plurality of image sensors for detecting a change in the position of the golf ball and photographing a predetermined region in the progress direction at an initial position of the golf ball according to the ball trigger signal to generate one image frame; And a processor for analyzing the flying distance and the flying direction of the golf ball based on the plurality of image frames generated by the plurality of image sensors of the ball sensing unit. The golf ball trajectory analyzing apparatus according to the present invention can satisfy a golf screen operator and a player by detecting a precise and wide range while replacing a high speed image sensor by applying a plurality of image sensors of low price.
Description
The present invention relates to an apparatus for analyzing a golf ball trajectory of a screen golf system.
Screen golf records the golf ball in the indoor area with a high-speed measuring camera in a specific section, analyzes the horizontal change, vertical change, speed, and spin amount of the golf ball, analyzes the trajectory of the golf ball, and virtually displays it on the screen. The high-speed measurement camera can analyze the trajectory of the golf ball so that the player can shoot the high-speed golf ball at a very high speed so as to obtain at least two or more image frames within a short time within a short interval. The ultra high-speed measurement camera capable of high-speed shooting as described above is considerably expensive and occupies a large portion of the total installation cost of the screen golf system, which is a considerable impediment to the expansion of the screen golf business.
In addition, when an ultra-high-speed measurement camera is photographed in a room with low illumination, the measurement accuracy may be degraded due to an insufficient amount of light.
In addition, since the ultra-high-speed measuring camera can detect only a short region in front of the initial position of the golf ball, it is not possible to detect a miss shot that deviates from the measurement range, or a wrong detection result may occur.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for analyzing a golf ball trajectory of a screen golf system to solve the above-described conventional problems.
It is an object of the present invention to provide an apparatus for analyzing a golf ball trajectory of a screen golf system which not only improves performance but also can be lowered from a manufacturing site.
It is another object of the present invention to provide an apparatus for analyzing a golf ball trajectory of a screen golf system capable of accurately detecting a clear image even in a low illuminance.
It is still another object of the present invention to provide an apparatus for analyzing a golf ball trajectory of a screen golf system which realizes realistic and accurate detection by providing a wide sensing area.
According to another aspect of the present invention, there is provided an apparatus for analyzing a golf ball trajectory of a screen golf system, comprising: a ball trigger signal generator for sensing a golf ball movement at an initial position and generating a ball trigger signal at a moving time; A plurality of image sensors for detecting a change in the position of the golf ball and photographing a predetermined region in the progress direction at an initial position of the golf ball according to the ball trigger signal to generate one image frame; And a processor for analyzing the flying distance and the flying direction of the golf ball based on at least two image frames generated by the plurality of image sensors of the ball sensing unit.
A plurality of image sensors are installed on a ceiling and each photographs a progressive golf ball from above. The processor senses a horizontal change using a difference in golf ball positions of the at least two image frames, The vertical change of the golf ball can be detected using the size difference of the golf ball.
The plurality of image sensors are installed to protrude from the ground, and each photographs the progressive golf ball on the side. The processor senses a vertical change using at least two image frames using a golf ball position difference, The horizontal change of the golf ball can be detected using the difference in size of the golf ball.
Wherein the ball sensing unit senses a horizontal position change of the golf ball and captures a horizontal region in a horizontal traveling direction at an initial position of the golf ball according to the ball trigger signal to generate a plurality of horizontal image frames, And a plurality of vertical images, each of which generates a vertical image frame in a vertical direction in the vertical direction of the golf ball at the initial position of the golf ball according to the ball trigger signal, Wherein the processor comprises at least two horizontal image frames generated by the plurality of horizontal image sensors of the horizontal sensing unit and at least two vertical image frames generated by the plurality of vertical image sensors of the vertical sensing unit, The distance and the flight direction of the golf ball can be analyzed.
The plurality of horizontal image sensors are disposed along the vertical direction of the golf ball target direction, and they can photograph the same area.
Wherein the plurality of horizontal image sensors and the plurality of vertical image sensors are disposed along a target direction of a golf ball, respectively, the plurality of horizontal image sensors photograph regions of different sizes, and the plurality of vertical image sensors have different sizes Can be photographed.
The shooting region may at least partially overlap.
One of the plurality of horizontal image sensors may sense an initial position of the golf ball.
The horizontal sensing unit and the vertical sensing unit may include a horizontal digital signal processor and a vertical digital signal processor, respectively.
The horizontal sensing unit and the vertical sensing unit may include a horizontal frame buffer and a vertical frame buffer, respectively.
According to embodiments of the present invention, a screen golf system capable of improving the performance and lowering the manufacturing cost by generating and analyzing two or more image frames required for trajectory analysis by capturing only one image of a plurality of horizontal and vertical image sensors of each channel, Can be provided.
In addition, since the plurality of sensors constituting the horizontal and vertical sensor channels can be set to have different shooting regions, a wide area can be detected.
In addition, since each of the plurality of sensing sensors captures only one image frame, providing a sufficient aperture opening time allows a clear image to be obtained even at low illumination, thereby improving the accuracy of analysis.
1 is a view showing an arrangement structure of a screen golf system according to a first embodiment of the present invention;
Fig. 2 is a block diagram showing the configuration of the screen golf system of Fig. 1,
3 is a diagram illustrating the configuration of the horizontal sensing unit according to the first embodiment,
FIG. 4 is a view showing an imaging region of the horizontal sensing unit according to the first embodiment,
5 is a diagram illustrating an imaging region of a vertical sensing unit according to an embodiment,
6 is a diagram showing an imaging region of the horizontal sensing unit according to the second embodiment,
7 is a block diagram showing a configuration of a screen golf system according to a third embodiment of the present invention, and Fig.
FIG. 8 is a view showing an imaging region of the ball sensing unit of the golf ball trajectory analysis apparatus of FIG. 7;
Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that it is not intended to be limited to the particular embodiments of the invention but includes various modifications, equivalents, and / or alternatives of the embodiments of the invention. In connection with the description of the drawings, like reference numerals may be used for similar components.
The terminology used herein is for the purpose of describing particular embodiments only and may not be intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present disclosure. Commonly used predefined terms may be interpreted in the same or similar sense as the contextual meanings of the related art and are not to be construed as ideal or overly formal in nature unless explicitly defined herein. Optionally, terms defined herein may not be construed to exclude embodiments of the present disclosure.
1 and 2 show a
The swinging
The
The
The ball
2, the
As shown in FIG. 3, the first to fourth
As shown in FIG. 4, the first to fourth
5 shows a sensing area of a horizontal sensor module according to a second embodiment of the present invention. The first to fourth
The first
The second
The third
The fourth
As a result, the moving distance, the moving time, and the moving direction of the first to third horizontal directions measured by the first, second, and fourth
As shown in Fig. 5, it is preferable that the first to fourth horizontal regions H1 to H4 are partially overlapped with each other at least. This is to prevent the occurrence of a shooting blind spot between each photographing area to increase the reliability of detection. Optionally, one of the four
The
The
A horizontal digital signal processor (DSP) 370 analyzes the image frames stored in the horizontal sensor memory. That is, the horizontal movement distance, the horizontal movement time, the horizontal movement direction, the horizontal rotation direction, and the horizontal rotation amount of the
2, the
Each of the first to third
The first
The second
The third
As a result, the moving time, moving distance, moving direction, and rotation amount of the first through third golf balls measured by the first through third
As shown in Fig. 6, it is preferable that the first to third vertical regions overlap at least partially with each other. This is to prevent the occurrence of a shooting blind spot between each photographing area to increase the reliability of detection.
The first through third
The vertical
The
A vertical digital signal processor (DSP) 460 analyzes the image frames stored in the
The golf ball
The golf ball
7 is a block diagram showing the configuration of the
The ball trigger signal generator 200 'is disposed in the vertical image sensor installation structure 130 protruding from the front surface of the
As shown in FIG. 7, the ball sensing module 300 'includes a first to fourth image sensors 310', 320 ', 330', and 340 'that are disposed on the ceiling and shoot toward the ground, 350 ', and a sensor digital signal processor (DSP) 360'.
The first to fourth image sensors 310 ', 320', 330 ', and 340' are provided on the ceiling in the vertical direction (x direction) of the target direction (y axis direction) Are arranged side by side. Each of the first to fourth image sensors 310 ', 320', 330 ', and 340' may be implemented as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
As shown in FIG. 8, the first to fourth image sensors 310 ', 320', 330 ', and 340' photograph the same preset sensing areas H1 to H4, respectively. At this time, the first to fourth image sensors 310 ', 320', 330 ', and 340' capture one image frame in response to the ball trigger signal transmitted from the ball trigger signal generator 200 ' . The first to fourth image sensors 310 ', 320', 330 ', and 340' are not simultaneously photographed in accordance with the ball trigger signal, but sequentially take image capturing . The first to fourth image sensors 310 ', 320', 330 ', and 340' photograph the first to fourth image frames H1 to H4, respectively. As a result, the position of the golf ball photographed in the first image frame H1 is (x1, y1), the position of the golf ball photographed in the second image frame H2 is (x2, y2) The position of the golf ball photographed in the image frame H3 is (x3, y3), and the position of the golf ball photographed in the fourth image frame H4 is (x4, y4). The horizontal positional change of the golf ball can be calculated using the first image frame H1 and the fourth image frame H4 among the four image frames H1 to H4. That is, the golf ball horizontal change can be found using the golf ball position (x4, y4) of the fourth image frame H4 at the golf ball position (x1, y1) of the first image frame H1. When all of the first to fourth image frames H1 to H4 capture a golf ball, two image frames, preferably a first image frame H1 and a fourth image frame H4, . The golf ball is photographed in at least two image frames among the first to fourth image frames H1 to H4, but the horizontal position change can be calculated. However, when only one of the first to fourth video frames H1 to H4 is shot, the horizontal position change may be calculated using the initial position (x0, y0). If none of the first to fourth video frames H1 to H4 has been shot, the ball is processed as an error and initialized. The first to fourth image sensors 310 ', 320', 330 ', and 340' photograph one image frame (H1 to H4) for the same shooting region corresponding to one ball trigger signal, Since the movement change of the golf ball, which is an object in at least two image frames, is used, it is possible to provide a better resolution and a wider sensing area in a low luminance environment without using an expensive high speed image sensor for high speed continuous shooting.
The vertical change of the golf ball can be determined by comparing the size variation of each golf ball photographed in the first to fourth image frames H1 to H4. That is, when comparing the size of the golf ball in the initial position with the size of the golf ball photographed in the fourth image frame H4, there is no vertical change when proceeding without vertical change, and there is a vertical change when the size increases. As a result, the vertical height from the floor can be calculated based on the distance from the floor to the image sensor and the change in golf ball size.
The image sensors 310 ', 320', 330 'and 340' of the first to fourth embodiments protrude from the bottom to form a line connecting the golf ball in the target direction (y-axis direction) And may be arranged side by side on the vertical line. In this case, the first to fourth image frames 310 ', 320', 330 ', and 340' of the first to fourth image sensors recognize the vertical position change of the golf ball using the positional change of the golf ball photographed And the change in the size of the golf ball can be used to determine the horizontal change.
Although the first to fourth image sensors 310 ', 320', 330 ', and 340' in FIG. 8 have been described as capturing the same sensing area, they may be designed to capture different sensing areas as needed It is possible.
The horizontal sensor controller 350 'may be embodied as a semiconductor processor such as, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC). The horizontal sensor control unit 350 'captures the regions defined by the first to fourth image sensors at a predetermined time using an ultra-high speed timer switch (not shown) according to the ball trigger signal received from the ball trigger signal generating unit 200' A photographing command is transmitted. The sensor control unit 350 'stores the image frames captured by the first to fourth image sensors in the sensor memory 360'. The sensor control unit 350 'reads the image frame stored in the sensor memory 360' and transmits it to the digital signal processor (DSP) 370 '.
The sensor memory 360 'stores image frames captured by the first to fourth image sensors as frame memories, and other unlimited data. The sensor memory 360 'may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) A disk, and / or an optical disk.
A digital signal processor (DSP) 370 'analyzes the image frames stored in the sensor memory. That is, the horizontal movement distance, the horizontal movement time, the horizontal movement direction, the horizontal rotation direction, and the horizontal rotation amount of the
The golf ball trajectory simulation apparatus 700 'is implemented by a personal computer or a server including a central processing unit (CPU), an image processing apparatus, an operating system (OS) such as an MS window, a golf ball trajectory simulation program running on the operating system . The golf ball trajectory simulation apparatus 700 'has data such as a horizontal movement distance, a horizontal movement time, a horizontal movement direction, a horizontal rotation direction, and a horizontal rotation amount analyzed by the ball detection module 300' Based on the vertical data such as the vertical movement distance, the vertical movement time, the vertical movement direction, the vertical rotation direction, and the vertical rotation amount analyzed using the size data of the golf ball as the object, the vector values (horizontal and vertical directions, , Angle) as well as the spin value to reproduce the change due to aerodynamics and friction. The golf ball trajectory simulation apparatus 700 'calculates the final arrival point by predicting the overall moving distance and the traveling direction of the
The golf ball trajectory simulation apparatus 700 'senses the
As described above, a plurality of image sensors each capture only one image frame and use at least two of the captured image frames to provide a wide sensing area and accurate sensing capability, Can be obtained.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention as defined by the appended claims. Modifications and modifications are possible.
Operations according to embodiments of the present invention may be implemented by single or multiple processors. In this case, program instructions for performing various computer-implemented operations may be recorded on a computer-readable medium. The computer-determinable medium may include program instructions, data files, data structures, etc., alone or in combination. The program instructions may be those specially designed and constructed for the present invention or may be available to those skilled in the art. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs or DVDs, magneto-optical media such as floppy disks and ROMs, , Random access memory (RAM), flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. When all or a part of the base station or relay described in the present invention is implemented as a computer program, the computer readable recording medium storing the computer program is also included in the present invention.
Therefore, the scope of the present invention should not be limited by the exemplary embodiments described, but should be determined by the scope of the appended claims, as well as the appended claims.
1: Screen golf system
100: Swing part
110: swing plate
120: Tea box
200: a ball trigger signal generator
300: Horizontal sensor module
400: Vertical sensor module
500: Screen
600: Projector
700: Golf ball trajectory simulation device
Claims (10)
A ball trigger signal generator for sensing movement of a golf ball at an initial position and generating a ball trigger signal at a movement time;
A plurality of image sensors for detecting a change in the position of the golf ball and photographing a predetermined region in the progress direction at an initial position of the golf ball according to the ball trigger signal to generate one image frame;
And a processor for analyzing the flying distance and the flying direction of the golf ball based on at least two image frames generated by the plurality of image sensors of the ball detection unit.
A plurality of image sensors are installed on the ceiling, and each of the image sensors captures an ongoing golf ball from above,
The processor senses the horizontal change using the golf ball position difference of the at least two image frames and detects the vertical change of the golf ball using the difference in size of the golf ball photographed in at least two image frames A golf ball trajectory analyzing apparatus of a screen golf system.
The plurality of image sensors are provided so as to protrude from the ground,
Wherein the processor senses a vertical change using at least two image frames using a golf ball position difference and senses a horizontal change of the golf ball using a difference in size of the golf ball photographed in at least two image frames An apparatus for analyzing a golf ball trajectory of a screen golf system.
The ball-
A horizontal sensing unit having a plurality of horizontal image sensors for sensing a horizontal position change of the golf ball and photographing a horizontal region in a horizontal traveling direction at an initial position of the golf ball according to the ball trigger signal to generate one horizontal image frame, And a vertical sensing unit having a plurality of vertical image sensors for sensing a vertical position of the golf ball in a vertical direction in the initial position of the golf ball according to the ball trigger signal to generate one vertical image frame, ≪ / RTI >
Wherein the processor is configured to determine at least two vertical image frames generated by the horizontal image sensors of the horizontal sensing unit and at least two vertical image frames generated by the plurality of vertical image sensors of the vertical sensing unit, And analyzing the flying direction of the golf ball.
Wherein the plurality of horizontal image sensors are arranged along a vertical direction of a golf ball target direction and each photographs the same area.
The plurality of horizontal image sensors and the plurality of vertical image sensors are disposed along the target direction of the golf ball, respectively
Wherein the plurality of horizontal image sensors capture regions of different sizes,
Wherein the plurality of vertical image sensors capture regions of different sizes.
Wherein the shooting region is at least partially overlapped.
Wherein one of the plurality of horizontal image sensors senses an initial position of the golf ball.
Wherein the horizontal sensing unit and the vertical sensing unit each include a horizontal digital signal processor and a vertical digital signal processor.
Wherein the horizontal sensing unit and the vertical sensing unit include a horizontal frame buffer and a vertical frame buffer, respectively.
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KR1020150155140A KR20170052969A (en) | 2015-11-05 | 2015-11-05 | A trajectory analysis device of a golf ball for a screen golf system |
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KR1020150155140A KR20170052969A (en) | 2015-11-05 | 2015-11-05 | A trajectory analysis device of a golf ball for a screen golf system |
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KR1020180010523A Division KR20180014141A (en) | 2018-01-29 | 2018-01-29 | A trajectory analysis device of a golf ball for a screen golf system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190091917A (en) | 2018-01-30 | 2019-08-07 | 한상천 | Sensor calibrating system and method of screen golf |
CN111330248A (en) * | 2020-02-19 | 2020-06-26 | 梵高夫科技控股(深圳)有限公司 | Golf entertainment system and golf game method |
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2015
- 2015-11-05 KR KR1020150155140A patent/KR20170052969A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190091917A (en) | 2018-01-30 | 2019-08-07 | 한상천 | Sensor calibrating system and method of screen golf |
CN111330248A (en) * | 2020-02-19 | 2020-06-26 | 梵高夫科技控股(深圳)有限公司 | Golf entertainment system and golf game method |
CN111330248B (en) * | 2020-02-19 | 2021-11-09 | 梵高夫科技控股(深圳)有限公司 | Golf entertainment system and golf game method |
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