KR102567199B1 - golf simulation system using 3D information - Google Patents

Abstract

The present invention relates to a golf simulation method using three-dimensional information. The second step of recognizing the X, Y coordinates of the ball flying in the air by analyzing the direction in which the ball's shadow moved in The third step of calculating the Z coordinate value, the fourth step of measuring and storing the 3D coordinates of the ball flying in the air by repeatedly performing steps 1 to 3 above, and the time of each image frame captured by the camera. A fifth step of calculating the azimuth and launch angle of the ball using the gap and the position difference of the ball in each image. In the image taken by the camera, comparing neighboring frames to check whether there is a change in the position of the pixel, The 6th step of estimating the ball's hitting and the club's direction, the 7th step of simulating the sidespin of the ball based on the difference between the club's direction and the ball's azimuth, and preset data. An eighth step of simulating the backspin of the ball based on the set data; and a ninth step of calculating the ball's trajectory based on the ball's backspin, sidespin, azimuth and launch angle, and displaying it on the screen.

Description

Golf simulation system using 3D information

The present invention relates to a golf simulation system using 3-dimensional information, and more particularly, the 3-dimensional data of a ball including the direction (angle), side spin, and back spin of a golf club obtained from an image captured by a single camera. A golf simulation system using 3D information capable of accurately realizing a golf ball trajectory simulation in a virtual golf course by calculating a golf ball trajectory based on the information.

Recently, various devices that allow users to enjoy popular sports games such as baseball, soccer, basketball, and golf in the form of an interactive sports game through simulation indoors or in a specific place have been actively developed. are losing

In particular, recently, a so-called screen golf system has appeared, and when a user swings a golf club with a golf club and hits a ball placed on a hitting mat, a sensing device detects this and extracts the physical characteristics of the moving golf ball, based on which a virtual golf ball is played. A technology is being developed to enable users to enjoy golf in virtual reality by simulating a trajectory of a ball on a golf course.

In such an interactive sports game, research and development on various sensing systems for accurately detecting physical information about the motion of a ball in motion is being actively conducted in order to simulate sports using balls such as golf balls. .
As a result, a number of patent applications have been made and have already been published in the related technology field. Among them, Patent No. 10-1963090 (registration announcement on March 27, 2019), 'virtual composite play method using simulated golf clubs' As described in claim 1, the 'golf simulation device' includes a screen displaying a virtual golf course and a virtual golf ball; and a control unit for calculating the motion of the virtual golf ball in the virtual golf course; and, since a complex play method is provided, the user can play in any one of first and second play modes, wherein the In the first play mode, the user hits a real golf ball placed on a hitting plate, and the control unit calculates the motion of the virtual golf ball based on the hitting result for the real golf ball, and the second play mode. In this mode, the user swings only the golf club without hitting an actual golf ball, and the control unit calculates the motion of the virtual golf ball based on a swing result of the golf club.
In addition, as described in Claims 1, 10 and 13, 'Virtual Golf Simulation Device and Sensing Device and Sensing Method Used in It' of Patent No. 10-1048089 (registration announcement on July 8, 2011), the sensing device , A sensing device used in a virtual golf simulation device, comprising: at least one sensor unit that continuously acquires images of a predetermined shooting range in which hitting is performed; a grabber for obtaining and storing an image from the sensor unit; a shot detector for receiving and processing the image transmitted from the grabber to detect whether a hit is ready and whether a hit has been made by the user; and an image processor configured to extract physical characteristic information of a moving ball by processing an image thereof when a hit is detected by the shot detector,
The simulation device includes a camera unit that continuously acquires images for a certain shooting range in which a hit occurs; and a grabber that obtains and stores an image from the camera unit, a shot detector that receives and processes the image transmitted from the grabber, and detects whether or not a hit is ready and whether a hit is made by the user, and the shot detector When a hit is detected, a sensing device including a sensing processing unit including an image processing unit that extracts physical characteristic information of a moving ball by processing an image thereof, and a trajectory of the ball according to the information extracted from the sensing processing unit It is configured to include an image implementation unit that implements a simulation image for
The sensing method, in the sensing method for virtual golf simulation, continuously acquires images for a certain shooting range in which hitting occurs; receiving and storing the continuously obtained images; detecting whether preparation for hitting is completed by receiving the stored image and processing the image; detecting whether or not a hit has been made by the user when the preparation for the hit is completed; and extracting physical characteristic information of a moving ball by processing an image thereof when the hit is sensed.
In addition, Patent No. 10-1729746 (registration announcement on April 25, 2017) 'network golf system using golf ball detection sensor', as described in claim 4, detects golf ball position and direction It includes a sensor, calculates the speed according to the position and direction of the golf ball, calculates the flight distance based on the wind direction and humidity information, and controls the golf practice machine and golf game provided in other driving ranges or other at-bats through the network. , a golf practice machine provided in the indoor; and a golf practice relay server relaying a golf practice or a golf game between the golf exerciser and a golf exerciser provided at a different golf course or at another table, wherein the golf exerciser detects the position and direction of the golf ball. sensor; a camera for filming the golfer; a wind vane that measures wind direction; Hygrometer to measure humidity; It calculates the flight distance by applying the measured wind direction and humidity information to the detected location and direction information of the golf ball, and controls the storage and display of golf game information generated according to the calculated flight distance and speed information and the detected location and direction information. and a control unit for controlling transmission of the golf game information, wherein the control unit includes a speed calculator for calculating a speed based on the detected position information of the golf ball; a direction calculation unit that calculates the position and direction information detected by the golf ball detection sensor as golf ball direction information; a flight distance calculating unit that calculates a flight distance by applying wind direction and humidity information to the speed and direction information; It includes an image processing unit that processes the image acquired by the camera.
In the prior art including the above prior art documents, various sensing methods such as a sensing device using an infrared sensor, a sensing device using a laser sensor, a sensing device using an acoustic sensor, and a sensing device using a camera sensor have appeared, and movement In order to accurately detect the state of a ball in motion, research on a camera sensor type sensing device that acquires and analyzes an image of a ball in motion is being actively conducted.

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In addition, the conventional IR sensor golf system uses a halogen bulb as lighting and uses only two IR sensor modules arranged in two rows in front of the ball, that is, in front of the ball facing the screen, to prevent flying through the air due to hitting. The ball is sensed and recognized, but in this case, the flight of the ball is detected only twice with two IR sensor modules arranged in two rows, so the ball flight is not detected continuously and repeatedly. There is a problem with low accuracy.

In particular, since the resolution of the IR sensor module is low, there is a problem in that information about the direction of movement of the club or ball, the speed of the ball, and rotation based on the information detected by the IR sensor module is also low in accuracy.

In order to solve the above problems of the prior art, the present invention increases the resolution of a video image of a golf ball flying in the air due to a hit and acquires precise information to accurately calculate the trajectory of a golf ball in a virtual golf course. Its purpose is to provide a golf simulation system using 3D information.

An object of the present invention as described above is a first step of photographing a ball flying in the air from a reference point (tee) due to a hit and a shadow of the ball formed on the floor with light from a lamp; A second step of recognizing the X and Y coordinates of the ball flying in the air by analyzing the direction in which the shadow of the ball has moved in the captured video image; A third step of calculating the Z coordinate value of the ball by triangulating the position coordinate value of the ball and its shadow based on the coordinates of the camera and the coordinates of the lamp; a fourth step of repeatedly performing the first to third steps to measure and store the three-dimensional coordinates of the ball flying in the air; a fifth step of calculating the azimuth and launch angle of the ball using the time interval of each image frame captured by the camera and the position difference of the ball in each image; A sixth step of estimating the hitting of the ball and the moving direction (angle) of the club by checking whether there is a change in the location of a pixel by comparing neighboring captured frames in the image captured by the camera; A seventh step of simulating sidespin of the ball based on the difference between the club's traveling direction and the ball's azimuth, and preset data; An eighth step of simulating backspin of the ball based on the vertical angle of the ball and preset data; and a ninth step of calculating the trajectory of the ball based on the backspin, sidespin, azimuth, and launch angle of the ball and displaying it on a screen.

According to one aspect of the present invention, the first step is characterized in that it is configured to further include the step of correcting the image of the hit area captured in a diamond shape in the captured image into a rectangular image.

According to another aspect of the present invention, the fourth step is characterized in that it is configured to further include the step of correcting the three-dimensional coordinates of the ball to be a straight line.

According to another aspect of the present invention, the sixth step may include comparing the first and second frames in the image captured by the camera with neighboring frames, detecting and recording pixels having differences; and calculating the direction (angle) of the ball hitting and club moving by analyzing the pixel difference in the above step.

According to another aspect of the present invention, it is characterized in that it is configured to further include the step of inputting positional information about the camera and the lamp with the starting position (tee) of the ball as a reference point before the first step.

According to another aspect of the present invention, the step may include inputting X, Y, and Z coordinate values for the position of the camera with the starting position (tee) of the ball as a reference point; inputting X, Y, and Z coordinate values for the position of the lamp with the starting position of the ball as a reference point; With the camera pointing at the starting position of the ball, making a rectangle corresponding to the hitting area using the starting position as a reference point, checking the reference point through the camera, and inputting horizontal and vertical values of the hitting area; and obtaining values for correcting the reference position of the camera, the viewing angle, and the curvature of the lens based on the starting position of the ball and the corner position of the hitting area.

Another object of the present invention is an image input unit for inputting an image of a ball flying in the air from a tee due to a hit taken by a camera and a shadow of the ball formed on the floor by light of a lamp; a ball X and Y coordinate recognizing unit for recognizing the X and Y coordinates of a ball flying in the air by analyzing the direction in which the ball's shadow moves in the video image input through the video input unit; a ball Z-coordinate recognizing unit calculating a Z-coordinate value of the ball by triangulating positional coordinates of the ball and its shadow based on the coordinates of the camera and the coordinates of the lamp; a 3D coordinate measurement unit for continuously recognizing and calculating the X, Y, and Z coordinates of the ball and measuring and storing the 3D coordinates of the ball flying in the air; a flight information calculation unit that calculates flight information of the ball including the azimuth and launch angle of the ball using the time interval of each image frame of the video input through the video input unit and the position difference of the ball in each image; a batting and club moving direction checking unit for estimating the ball hitting and club moving direction by comparing adjacent captured frames in the image input through the image input unit to check whether there is a change in pixel position; a sidespin simulation unit for simulating sidespin of the ball based on the difference between the club's traveling direction and the ball's azimuth, and preset data; a backspin simulation unit simulating backspin of the ball based on the vertical angle of the ball and preset data; and a golf ball trajectory calculation unit that calculates the ball's trajectory based on the ball's backspin, sidespin, azimuth, and launch angle, and displays it on a screen via a project drive control unit. A golf simulation system using three-dimensional information. is achieved by

According to one aspect of the present invention, the image input unit is characterized in that it is configured to further include an image correction processing unit for correcting the image of the hit area captured in the shape of a lozenge to a rectangular image.

According to another aspect of the present invention, it is characterized in that it is configured to further include a three-dimensional coordinate correction unit for correcting the three-dimensional coordinates of the ball to be a straight line.

According to another aspect of the present invention, the hitting and club moving direction confirmation unit compares the first and second frames in the image input through the image input unit with neighboring frames, and changes the position of a pixel having a difference. a pixel position change detector for detecting and recording; and an analysis calculation unit that analyzes the difference in position change of the pixel in the pixel position change detection unit and calculates the strike of the ball and the moving direction of the club.

According to another aspect of the present invention, it is characterized in that it is configured to further include an input unit for inputting positional information about the camera and the lamp with the starting position (tee) of the ball as a reference point.

According to another aspect of the present invention, the input unit may include: a camera location information input unit for inputting X, Y, and Z coordinate values for the location of the camera with the starting position (tee) of the ball as a reference point; a lamp location information input unit for inputting X, Y, and Z coordinate values for the location of the lamp using the starting location of the ball as a reference point; a hitting area information input unit for making a rectangle corresponding to a hitting area with the starting position of the ball as a reference point while the camera is pointing at the starting position of the ball, confirming the reference point through the camera, and inputting horizontal and vertical values of the hitting area; and a correction unit for obtaining values for correcting the reference position of the camera, the viewing angle, and the curvature of the lens based on the starting position of the ball and the corner position of the hitting area.

According to the present invention, the golf ball trajectory simulation is performed by calculating the trajectory of the golf ball based on the three-dimensional information of the ball including the direction of movement of the golf club and the sidespin and backspin obtained from the image taken by the high-resolution camera. By implementing it, there is an effect of obtaining high-precision information and accurately calculating the trajectory of a golf ball in a virtual golf course.

1A is a configuration diagram of a golf simulation system using 3D information according to an embodiment of the present invention.
Figure 1b is a view showing the installation state of the camera and lights disclosed in Figure 1a.
2 is a detailed configuration diagram of the input unit disclosed in FIG. 1A.
3 is a detailed configuration diagram of the golf ball trajectory simulation unit disclosed in FIG. 1A.
4A and 4B are flowcharts showing a simulation process of a golf ball trajectory in a virtual golf course by the golf simulation system using the 3D information of FIG. 1A.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a configuration diagram of a golf simulation system using 3D information according to an embodiment of the present invention, and FIG. 1B is a diagram showing an installation state of a camera and lights disclosed in FIG. 1A.

1A and 1B, the golf simulation system using three-dimensional information according to an embodiment of the present invention includes a high-resolution camera 100 located on the ceiling and photographing a flying ball, and a halogen lamp 200 with high illumination. The input unit 300 for inputting location information about the camera 100 and the lamp 200 with the starting position (tee) of the ball as a reference point, analyzing the images of the golf club and the ball captured by the camera 100 , a golf ball trajectory simulation unit 400 that calculates ball trajectory data for golf simulation in a virtual golf course, a project driving control unit 500 that controls driving of a project to display the virtual golf course and the trajectory of a ball, and a screen 600 displaying the golf virtual course and the motion of the golf ball.

In the above embodiment, the image input unit 410 may further include an image correction processing unit 411 that corrects an image of a hit area captured in a lozenge shape in a captured image into a rectangular image.

In addition, in the embodiment according to the present invention, a lamp 200 such as a halogen is disposed on the ceiling of the vertical top of the golf ball 1 placed at the starting position of the golf mat 2, and the golf ball trajectory simulation unit 400 A camera 100 connected to a kiosk including a lamp 200 is disposed at regular intervals.

2 is a detailed configuration diagram of the input unit disclosed in FIG. 1A.

Referring to FIG. 2 , the input unit 300 disclosed in FIG. 1A is a camera location information input unit 310 that inputs X, Y, and Z coordinate values for the position of the camera 100 with the starting position (tee) of the ball as a reference point. , the light location information input unit 320 inputting the X, Y, and Z coordinate values for the position of the light 200 with the starting position of the ball as a reference point, and the starting position of the ball as the ball in a state where the camera 100 is directed. Using the starting position as a reference point, a rectangle corresponding to the hitting area is created, and the reference point is confirmed through the camera 100. The hitting area information input unit 330 inputs the horizontal and vertical values of the hitting area, and the starting position of the ball and the hitting area It consists of a correction unit 340 that obtains values for correcting the reference position of the camera, the angle of view, and the curvature of the lens based on the corner position.

3 is a detailed configuration diagram of the golf ball trajectory simulation unit disclosed in FIG. 1A.

Referring to FIG. 3 , the golf ball trajectory simulation unit 400 disclosed in FIG. 1A shows a ball flying in the air from a reference point (tee) due to a hit photographed by the camera 100 and a light from the lamp 200 on the floor. An image input unit 410 for inputting an image of the shadow of the formed ball, and an X, Y coordinate of the ball flying in the air are recognized by analyzing the direction in which the shadow of the ball moves in the video image input through the video input unit 410 Ball Z coordinate recognition that calculates the Z coordinate value of the ball by triangulating the position coordinate values of the ball and ball shadow based on the coordinates of the ball X, Y coordinate recognizing unit 420, the camera 100 and the lamp 200. The unit 430 continuously recognizes and calculates the X, Y, and Z coordinates of the ball and measures and stores the 3D coordinates of the ball flying in the air through the 3D coordinate measurement unit 440 and the image input unit 410. A flight information calculation unit 450 and an image input unit 410 that calculate flight information of the ball including speed, azimuth, and launch angle of the ball using the time interval of each image frame of the input video and the position difference of the ball in each image. ), the hitting and club moving direction confirmation unit 460 that checks the ball hitting and club moving direction by comparing neighboring captured frames to check whether there is a change in pixel position, A sidespin simulation unit 470 that simulates the sidespin of the ball based on the direction of travel, the difference in the azimuth of the ball, and preset data, and the backspin of the ball based on the vertical angle of the ball and preset data The backspin simulation unit 480 that simulates, and the ball's backspin, sidespin, azimuth and launch angle calculate the trajectory of the ball, and display it on the screen 600 through the project drive control unit 500 It is composed of a golf ball trajectory calculation unit 490.

In the above embodiment, a 3D coordinate correction unit 441 correcting the 3D coordinates of the ball to be a straight line may be further included.

In the above embodiment, the batting and club moving direction confirmation unit 460 compares the first and second frames in the image input through the image input unit 410 with neighboring frames, and determines the number of pixels with a difference. A pixel position change detector 461 that detects and records the position change and an analysis calculator 462 that analyzes the difference in position change of the pixel in the pixel position change detector 461 to calculate the hit of the ball and the moving direction of the club ).

4A and 4B are flowcharts showing a simulation process of a golf ball trajectory in a virtual golf course by the golf simulation system using 3D information disclosed in FIG. 1A.

4A and 4B, prior to executing virtual screen golf, that is, golf ball trajectory simulation on a golf virtual course, the user places a ball (golf ball) at a starting position (tee) on a golf mat (S1 ).

Next, the user places the camera 100 on the upper side (ceiling) of the ball based on the starting position (tee) of the ball (S2). It may be placed on the top of the rear side (ceiling) instead of the top of the side mentioned in the above embodiment, or it may be placed in a kiosk including the golf ball simulation unit 400 . At this time, the distance from the halogen lamp 200 mentioned at the bottom is variable according to the lens mounted on the camera 100. In the embodiment of the present invention, the distance between the camera 100 and the lamp 200 is described as 1 meter as an example. . In addition, the halogen lamp 200 (or LED bulb with strong infrared rays) is placed directly above the ball, that is, on the ceiling at a height of approximately 3 meters (S3).

After arranging the camera 100 and the halogen lamp 200, the user inputs X (left and right), Y (front and back), and Z (up and down) coordinate values for the position of the camera 100 with the starting position of the ball as a reference point. (S4). In addition, the user inputs X (left and right), Y (front and back), and Z (up and down) coordinate values for the position of the halogen lamp 200 together with the position coordinates of the camera 100 (S5).

With the camera 100 located on the ceiling adjusted to point at the ball, the user creates a rectangle corresponding to the hitting area, that is, the hitting mat, with the ball, confirms the reference point through the camera 100 and inputs the horizontal value of the rectangle. and vertical values are input (S6). Here, the rectangle may have a distance of approximately 20 cm in the front, rear, left, and right directions with the position of the ball as a reference point.

At this time, the golf ball trajectory simulation unit 400 uses the starting position of the ball and the hitting area, that is, each corner of the hitting mat as reference points to obtain values for correcting the reference position of the camera 100, the angle of view, and the curvature of the lens. (S7).

The camera 100 located on the ceiling transmits the image of the ball flying in the air from the reference point (tee) due to the blow and the image of the shadow of the ball formed on the floor with the light of the lamp 200 through the image input unit 410. Through this, the ball X, Y coordinates are input to the recognizing unit 420, the flight information calculation unit 450, and the batting and club moving direction confirmation unit 460, respectively (S8).

At this time, in the image captured by the camera 100, the hitting area is captured in a diamond shape according to the perspective and angle of view. By correcting this into a rectangular image through image processing (S9), the image input to the rear is directly above the ground It can be seen as if it was shot from the direction.

Subsequently, the ball X, Y coordinate recognizing unit 420 analyzes the direction in which the shadow of the ball has moved in the video image through the video input unit 410 to recognize the X and Y coordinates of the ball flying in the air (S10), and The Z coordinate recognizing unit 430 calculates the Z coordinate value of the ball by triangulating the location coordinate values of the ball and its shadow based on the coordinates of the camera 100 and the lamp 200 (S11).

The ball 3-dimensional coordinate measurement unit 400, to which the result of repeatedly performing the above steps S8 to S11 is supplied, measures and stores the 3-dimensional coordinates of the ball flying in the air (S12). At this time, the ball 3D coordinate measuring unit 400 corrects the 3D coordinates of the ball to be a straight line (S13).

Subsequently, the flight information calculator 450, in which the image captured by the camera 100 is input through the image input unit 410, uses the time interval of each image frame of the image and the difference in the position change of the ball in each image The azimuth and launch angle of the ball are calculated (S14). In addition, the batting and club moving direction checking unit 460 compares the adjacent captured frames in the image captured by the camera 100 to check whether there is a change in pixel position, and determines the hitting of the ball and the moving direction of the club. Estimate (S15).

In more detail, the hitting and club moving direction confirmation unit 460 compares the first and second frames in the image taken by the camera 100 with neighboring frames, detects and records pixels with differences, , And by analyzing the difference between the recorded pixels, the hit of the ball and the moving direction of the club are estimated.

Next, the sidespin simulation unit 470 simulates the sidespin of the ball based on the difference between the club's traveling direction and the ball's azimuth, and preset data (S16), and the backspin simulation unit 480 simulates the ball's sidespin. The backspin of the ball is simulated (S17) based on the upper and lower angles of and preset data.

Then, the golf ball trajectory calculation unit 490 calculates the trajectory data of the ball based on the ball's backspin, sidespin, azimuth and launch angle, and displays virtual golf on the screen 600 through the project drive control unit 500. The trajectory of the ball is displayed along with the course (S18).

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and is common in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modified implementations are possible by those with knowledge of, and these modified structures should not be understood as departing from the technical spirit of the present invention.

100: camera 200: light
300: input unit 400: golf ball trajectory simulation unit
410: video input unit 411: image correction processing unit
420: Ball X, Y coordinate recognition unit 430: Ball Z coordinate recognition unit
440: Ball 3D coordinate measurement unit 450: Flight information calculation unit
460: hitting and club direction confirmation unit 470: side spin simulation unit
480: backspin simulation unit 490: golf ball trajectory calculation unit
500: Project driving control unit 600: Screen

Claims (12)

A first step of photographing a ball flying into the air from a tee due to a hit and a shadow of the ball formed on the floor with light from an electric lamp;
A second step of recognizing the X and Y coordinates of the ball flying in the air by analyzing the direction in which the shadow of the ball has moved in the captured video image;
A third step of calculating the Z coordinate value of the ball by triangulating the position coordinate value of the ball and its shadow based on the coordinates of the camera and the coordinates of the lamp;
a fourth step of repeatedly performing the first to third steps to measure and store the three-dimensional coordinates of the ball flying in the air;
a fifth step of calculating the azimuth and launch angle of the ball using the time interval of each image frame captured by the camera and the position difference of the ball in each image;
A sixth step of estimating the hit of the ball and the moving direction of the club by comparing neighboring captured frames in the image captured by the camera to check whether there is a change in pixel position;
A seventh step of simulating sidespin of the ball based on the difference between the club's traveling direction and the ball's azimuth and preset data;
An eighth step of simulating backspin of the ball based on the vertical angle of the ball and preset data; and
A ninth step of calculating the ball's trajectory based on the ball's backspin, sidespin, azimuth and launch angle, and displaying it on the screen
Consisting of, golf simulation method using three-dimensional information. According to claim 1,
The first step is
A golf simulation method using three-dimensional information, characterized in that it further comprises the step of correcting the image of the hitting area captured in the form of a lozenge in the captured image into a rectangular image. According to claim 1,
The fourth step further comprises correcting the three-dimensional coordinates of the ball so that they become straight lines. According to claim 1,
The sixth step,
detecting and recording a pixel having a difference by comparing a first frame and a second frame in an image captured by the camera with neighboring frames; and
A golf simulation method using three-dimensional information, characterized in that it comprises the step of calculating the ball hitting and club moving direction by analyzing the pixel difference in the step. According to claim 1,
Golf simulation method using three-dimensional information, characterized in that it further comprises the step of inputting positional information about the camera and lights with the starting position (tee) of the ball as a reference point prior to the first step. According to claim 5,
The step is
inputting X, Y, and Z coordinate values of the camera position using the starting position (tee) of the ball as a reference point;
inputting X, Y, and Z coordinate values for the position of the lamp with the starting position of the ball as a reference point;
With the camera pointing at the starting position of the ball, making a rectangle corresponding to the hitting area using the starting position as a reference point, checking the reference point through the camera, and inputting horizontal and vertical values of the hitting area; and
The step of obtaining values to correct the reference position of the camera, angle of view, and curvature of the lens based on the starting position of the ball and the position of the edge of the hitting area
A golf simulation method using three-dimensional information, characterized in that it is configured to include. An image input unit 410 for inputting an image of a ball flying in the air from a reference point (tee) due to a hit photographed by the camera 100 and a shadow of the ball formed on the floor by the light of the lamp 200;
a ball X, Y coordinate recognizing unit 420 for recognizing the X and Y coordinates of a ball flying in the air by analyzing the direction in which the ball's shadow moves in the video image input through the video input unit 410;
a ball Z coordinate recognizing unit 430 that calculates a Z coordinate value of the ball by triangulating the position coordinate values of the ball and its shadow based on the coordinates of the camera 100 and the lamp 200;
a 3D coordinate measurement unit 440 that continuously recognizes and calculates the X, Y, and Z coordinates of the ball and measures and stores the 3D coordinates of the ball flying in the air;
A flight information calculation unit 450 that calculates flight information of the ball including the azimuth and launch angle of the ball using the time interval of each image frame of the image input through the image input unit 410 and the position difference of the ball in each image. );
In the image input through the image input unit 410, a hitting and club moving direction checking unit 460 checks whether there is a change in pixel position by comparing neighboring captured frames to check the hitting of the ball and the moving direction of the club. );
a sidespin simulation unit 470 simulating sidespin of the ball based on the difference between the direction of the club and the azimuth of the ball and preset data;
a backspin simulation unit 480 simulating backspin of the ball based on the vertical angle of the ball and preset data; and
A golf ball trajectory calculator 490 that calculates the ball's trajectory based on the ball's backspin, sidespin, azimuth and launch angle, and displays it on the screen 600 via the project drive control unit 500
Consisting of, golf simulation system using three-dimensional information. According to claim 7,
The video input unit 410,
A golf simulation system using three-dimensional information, characterized in that it is configured to further include an image correction processing unit 411 for correcting and processing an image of a hitting area captured in a lozenge shape in a captured image into a rectangular image. According to claim 7,
A golf simulation system using 3-dimensional information, characterized in that it further comprises a 3-dimensional coordinate correction unit 441 for correcting the 3-dimensional coordinates of the ball so that they become straight lines. According to claim 7,
The hitting and club traveling direction confirmation unit 460,
a pixel position change detection unit 461 that compares the first and second frames in the image input through the image input unit 410 with neighboring frames and detects and records a position change of a pixel having a difference; and
Characterized in that it comprises an analysis calculation unit 462 that analyzes the difference in the position change of the pixel in the pixel position change detection unit 461 to calculate the hitting of the ball and the moving direction of the club. A golf simulation system using According to claim 7,
A golf simulation system using three-dimensional information, characterized in that it is configured to further include an input unit 300 for inputting location information about the camera 100 and the lamp 200 with the starting location (tee) of the ball as a reference point. According to claim 11,
The input unit 300,
a camera location information input unit 310 for inputting X, Y, and Z coordinate values of the location of the camera 100 with the starting location (tee) of the ball as a reference point;
a lamp location information input unit 320 inputting X, Y, and Z coordinate values for the location of the lamp 200 using the starting location of the ball as a reference point;
With the camera 100 pointing at the starting position of the ball, a rectangle corresponding to the hitting area is created using the starting position of the ball as a reference point, and the reference point is checked through the camera 100, and the horizontal and vertical values of the hitting area are input. a hitting area information input unit 330; and
A correction unit 340 that obtains values for correcting the reference position of the camera, the viewing angle, and the curvature of the lens based on the starting position of the ball and the corner position of the hitting area
A golf simulation system using three-dimensional information, characterized in that it is configured to include.