JPH07204306A - Image processor for analyzing golf swing - Google Patents

Abstract

PURPOSE:To realize the lowering of utilization cost by enabling to obtain a specified number of frames of image signals automatically for a series of swing actions from a take-back to a follow-through of a golf club by a player without labor. CONSTITUTION:A CCD camera 1 performs a photographing covering areas containing a player who hits a golf ball set on a tee 30 frames per second. An impact sensor 2 detects the moment of hitting a golf ball with a golf club to generate a trigger signal St. With a primary processing circuit 7, an image signal from the CCD camera 1 is updated and stored into a buffer memory 7a for five min. each while in the outputting of the trigger signal St, only specified 10 frames are extracted within a range going back by 5 second from the inputting timing. At the same time, only the specified 6 frames of the signals within a range after a specified time passes are extracted and transferred to a second transfer buffer 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf swing analysis image processing apparatus useful for checking a golf swing.

[0002]

2. Description of the Related Art When a golf player checks his or her golf swing, it is common to photograph the swing state with a video camera and analyze the photographed result while monitoring it. However, with such a means, the screen displayed on the monitor is a moving image, so that it is difficult to sufficiently perform the swing check. In order to deal with such a situation, it is possible to use the stop motion function (image pause function) provided in the image reproduction device, but the operation of temporarily suspending the image at appropriate timing is troublesome. There was a problem such as becoming.

In recent years, in order to solve the above-mentioned problems, a series of swings from a state in which a golf player starts taking back a golf club to a follow-through through a backswing and a downswing by an image pickup means. A golf swing in which the operation is continuously photographed at a predetermined number of frames (for example, 16 frames) at a relatively high shutter speed, and the photographed results are arranged in time series and output to a monitor device or a printer. An image processing device for analysis has been embodied, and such a device is installed in a golf driving range or a golf equipment store and used for a fee.

[0004]

In the above-mentioned device, it is necessary to start the operation of the image pickup means at the timing when the golf player starts the takeback, but it is impossible for the golf player to perform the start operation. Therefore, in reality, an operator who operates the imaging means is required. Therefore, there is a problem that the cost of using the device is high, which is an unsolved problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to manually generate image signals for a predetermined number of frames for a series of swing motions from takeback of a golf club by a player to follow through. It is an object of the present invention to provide a golf swing analysis image processing device that has effects such as being able to obtain automatically without intervention and reducing the cost of use.

[0006]

In order to achieve the above object, an image processing apparatus for golf swing analysis according to the present invention hits a golf ball or a golf ball-like object set in a predetermined position with a golf club. An image pickup means for shooting an area including a player at a rate of a predetermined number of frames per second and sequentially outputting image signals of the respective frames, and an image signal from the image pickup means are provided so as to be able to be stored for a predetermined time. Image storage means for sequentially storing the new image signal while erasing the oldest image signal each time a different image signal is input, and detecting the moment when the golf ball or golf ball-like object is hit by a golf club. And a detection means for generating a trigger signal, and a trigger signal from the detection means are input to the image storage means. A signal for extracting the stored image signal for a predetermined number of frames within a range traced back by a predetermined time from the input timing of the trigger signal and for extracting for a predetermined number of frames within a range elapsed by a predetermined time from the input timing. It is characterized in that it includes a processing means and an output means for arranging and outputting the image signals extracted from the signal processing means in the order of generation (claim 1).

In this case, when the trigger signal is input, the signal processing means extracts the image signal at the time of input as a reference image signal from the image storage means, and traces back a predetermined time from the reference image signal. It is also possible to extract the image signals for the predetermined number of frames within the specified range and to extract the image signals for the predetermined number of frames within the range when a predetermined time has elapsed from the reference image signal (claim 2).

Further, the signal processing means may be so constructed that each timing of extracting the image signals of a predetermined number of frames from the image storage means can be adjusted by an external operation (claim 3). .

[0009]

In the image processing apparatus for golf swing analysis according to claim 1, the image of the area including the player who hits the golf ball or the golf ball-like object set at the predetermined position by the golf club by the image pickup means is displayed every second. Images are taken at a rate of a predetermined number of frames, and the image signal of each frame is sequentially output. Such an image signal is sequentially updated in the image storage means by the number of frames corresponding to the latest fixed period. Will be remembered. When the player hits the golf ball or a golf ball-like object with a golf club, the detecting means generates a trigger signal at the moment of hitting, and the trigger signal is input to the signal processing means. Then, in the signal processing means, the image signal stored in the image storage means is extracted by a predetermined number of frames within a range traced back by a predetermined time from the input timing of the trigger signal, and from the input timing. Only a predetermined number of frames within a range after a lapse of a predetermined time are extracted, and the image signals extracted as described above are output in a state of being arranged in the order of occurrence.

As a result, the image signals corresponding to the predetermined number of frames are time-series signals indicating the swing state of the player in a predetermined period before and after the golf ball or the golf ball-like object is hit. It becomes possible to automatically obtain an image signal for a predetermined number of frames for a series of swing motions from a player's takeback to follow-through of a golf club without human intervention, and to obtain image data based on the image signal. The golf swing can be effectively checked based on the golf swing.

In the golf swing analysis image processing apparatus according to the present invention, when the trigger signal is generated, the signal processing means that receives the trigger signal uses the image signal at the time of input as a reference image signal from the image storage means. An image signal for a predetermined number of frames within a range that is extracted and traced back for a predetermined time from the reference image signal is extracted, and an image signal for a predetermined number of frames within a range that has elapsed for a predetermined time from the reference image signal is extracted. Like As a result, the image signals of the respective frames output from the output means in the state of being arranged in the order of occurrence are developed back and forth around the reference image signal closest to the image at the moment when the golf ball or the golf ball-like object is hit. As a result, the golf swing can be checked more effectively.

In the golf swing analysis image processing apparatus according to the present invention, each timing for extracting the image signals of a predetermined number of frames from the image storage means in the signal processing means is adjustable by an external operation. The image signal of each frame can be reliably set to a state corresponding to a series of swing motions from the takeback of the golf club to the follow through by the player, and the image signal of each frame stored in the image storage means is wasted. There is an advantage that it can be utilized without any.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an electric configuration of the image processing apparatus for golf swing analysis by combining functional blocks. In FIG. 1, a CCD camera 1 as an image pickup means is provided so as to photograph an area including a player who hits a golf ball set on a tee, which is a predetermined position, from the front side direction of the player. For example, the image signal of each frame taken at 30 frames per second is sequentially output. The scanning time for one image by the CCD camera 1 (corresponding to the shutter speed in the camera)
Is set as short as possible. Also, here, the area including the player is shot from the front side direction,
It is also possible to have a configuration in which it is possible to arbitrarily switch to each state of shooting from other directions (a back side direction of the player, a head side direction, a front side direction, a back side direction, etc.). The image signal as described above may be either color or monochrome, but in this embodiment, it is assumed that it is a color image signal.

The impact sensor 2 as a detection means is
This is for detecting the moment when the golf ball is hit by a golf club and for generating a trigger signal St through the trigger output unit 3 at the time of detection, for example, a microphone for detecting a hitting sound, a golf ball from the top of the tee. It is possible to use means for optically or mechanically detecting the lost state, means for optically or magnetically detecting the state where the golf club has passed on the tee or immediately before the tee, and these means are also available. It may be realized by combining.

The speed sensor 4 generates a speed signal Sv indicating the head speed (swing speed of the golf club). The speed sensor 4 is a means utilizing the Doppler effect such as ultrasonic waves, or the moving time of the golf club between fixed points is optically determined. And the CC
It can also be realized by utilizing an image signal from the D camera 1. Although not shown, such a speed sensor 4
In addition, means for detecting the face angle when the club head hits the golf ball is provided, and the property of the hit ball (slice, hook or straight ball type) is judged based on the detection result. It is like this.

The image signal from the CCD camera 1 is passed through the input processing section 5 to the primary processing circuit 7 in the primary processing device 6.
(Corresponding to the signal processing means in the present invention) and to the switcher circuit 9 in the output control device 8 (corresponding to the output means in the present invention). The primary processing circuit 7 outputs the image signal given every 1/30 seconds for a predetermined time, for example, 5 seconds (that is, 150 frames).
A buffer memory 7a (corresponding to the image storage means in the present invention) capable of storing over the entire memory, and erases the oldest image signal every time a new image signal is input to the buffer memory 7a. However, the new image signal is sequentially stored.

Further, the primary processing circuit 7 is adapted to receive the output from the trigger output section 3, and when the trigger signal St is inputted, the buffer memory 7a.
The image signal stored in (1) is transferred to the first transmission buffer 10 and the second transmission buffer 11 as follows.

That is, for the first transmission buffer 10, the image signals of all the frames within a range traced back by a predetermined time (for example, 5 seconds) from the input timing of the trigger signal St, and a predetermined time (the predetermined time from the input timing). For example, the image signals of all the frames within a range of 2 seconds have been transferred, and therefore, the first transmission buffer 10 includes 7 seconds (210 frames) including the input time of the trigger signal St. Min) image signals will be stored. In order to complete the transfer operation of such an image signal, the trigger signal S
It will take at least 2 seconds after the input of t.

For the second transmission buffer 11, a predetermined number of frames (eg, 1) within a range traced back by a predetermined time (eg, 5 seconds) from the input timing of the trigger signal St.
It is configured to extract and transfer only 0 frames) and extract and transfer only a predetermined number of frames (for example, 6 frames) within a range when a predetermined time (for example, 2 seconds) has elapsed from the input timing. , Therefore the second transmission buffer 11
In this case, a total of 16 frames of image signals will be stored. In addition, in order to complete such an image signal extraction and transfer operation, it takes a maximum of 2 seconds after the input of the trigger signal St.

The extraction of image signals for 16 frames by the primary processing circuit 7 as described above is specifically carried out at the timing shown in FIG. That is, FIG. 3 shows the relationship between the output timing of the trigger signal St and the extraction timing of the image signal. The primary processing circuit 7 uses the image signal immediately before the input of the trigger signal St, for example, as the reference image. The signal is extracted as a signal (this is referred to as a frame number “0”), and the image signal at each timing (frame number “−3”, which is traced back from this reference image signal by, for example, 1/10 second four times)
"-6", "-9", "-12") and 1/5 from here
Seconds (3/5 seconds from the reference image signal), the reference image signal (frame number "-18") at the timing, and the image signal (frame) at each timing 4/5 seconds further from here The numbers "-42", "-66", "-90",
"-114") and are extracted.

Further, the primary processing circuit 7 outputs image signals at respective timings (frame number "3", frame number "3", for example, 1/10 second four times after the reference image signal of frame number "0").
"6", "9", "12"), the reference image signal (frame number "18") at a timing of 1/5 second (3/5 second from the reference image signal) from here, and from here Further, the image signal (frame number “30”) at the timing when 2/5 seconds (1 second from the reference image signal) has elapsed is extracted.

The above-mentioned image signal extraction timing in the primary processing circuit 7 can be adjusted by an external operation through the setting means 12. in this case,
The setting means 12 has a configuration in which the extraction timing of the image signal of each frame can be arbitrarily adjusted, or the swing speed of the golf club is large or small (for example, distinction between male and female).
It is possible to adopt a configuration in which a selection pattern is selected from among predetermined extraction patterns according to the above.

On the other hand, the first monitor memory 13 cumulatively stores a maximum of, for example, about 10 image signal groups each time the storage of image signals for 210 frames in the first transmission buffer 10 is completed. The image signal groups thus stored can be selectively output to the switcher circuit 9 in the output control device 8 for each group. When outputting such an image signal group, the image signals of each frame are output in order of 1/30 second from the oldest one. Further, the image signal for 210 frames stored in the first monitor memory 13 may be directly transferred from the buffer memory 7a to the first monitor memory 13 without using the transmission buffer 10. Is.

The second monitor memory 14 cumulatively stores a maximum of, for example, about 10 image signal groups each time 16 frames of image signals are completely stored in the second transmission buffer 11. The image signal group thus stored can be selectively output to the switcher circuit 9 for each group. When outputting such an image signal group, the image signals of each frame are sequentially output from the oldest one. The 16-frame image signal stored in the second monitor memory 14 may be directly transferred from the buffer memory 7a to the second monitor memory 14 without using the transmission buffer 11. is there.

In the output control device 8, the switcher circuit 9 selects either one or two of the image signals from the CCD camera 1 and the image signals from the first and second monitor memories 13 and 14. It is provided to the mixing circuit 15 and the selection operation is performed by a command from the output control unit 16.

The mixing circuit 15 mixes the image signal from the switcher circuit 9 with the superimposing image signal supplied from the output control section 16, and supplies the mixed image signal to the output circuit 17. .

The output circuit 17 includes a mixing circuit 15
An image signal from the color monitor 18 including a CRT color display or a liquid crystal color display,
This is for selectively giving to a recording device 20 including a monochrome printer 19 (a color printer is also possible) and a video recorder, and the selection operation is performed by the output control unit 1.
It is performed by the command from 6.

The output control unit 16 includes the monitor memories 1
By providing a selection signal to 3 and 14, the image signal group output from the monitor memories 13 and 14 to the switcher circuit 9 is selected. The operation signal of is given.

As shown in FIG. 2, the operation section 21 has a key switch 21a for inputting the type of club used.
Group, "normal playback" key switch 21b, "frame shot"
Key switch 21c, "print" key switch 2
1d, a "recording" key switch 21e, a manual switch 21f for selecting a manual mode, a clear switch 21g for initializing the input contents, and a display panel 21h including a liquid crystal display, for example.

In this case, the group of key switches 21a is composed of illuminated switches, and includes "wood", "iron",
"0" to "9", "SW" (abbreviation of sand wedge),
The type of golf club to be used can be input depending on the operating state of each key switch 21a provided with "PW" (abbreviation of pitching wedge), and the input data is used to create the image signal for superimposing. Be served.

The "normal reproduction" key switch 21b and the "frame-shooting" key switch 21c are also illumination type switches, and the kind of reproduced image, specifically, the first
Normal reproduction mode for reproducing continuous images based on the image signal stored in the monitor memory 13 and time-lapse reproduction for reproducing a decomposed image by time-lapse recording based on the image signal stored in the second monitor memory 14. This is for instructing any one of the modes, and either one is configured to be exclusively turned on.

The "print" key switch 21d and the "record" key switch 21e are also composed of illumination type switches, and a pudding mode for instructing the printing of a decomposed image by time-lapse photography and a recording command for a replay image are respectively provided. It is provided to select the recording mode to be performed, and is configured to be turned on independently.

The display panel 21h is provided for displaying the current operation mode of the golf swing analysis image processing apparatus, and for example, "while the time-lapse monitor is in progress,
A display such as "<current shot>" or "time-lapse printing <first shot>" is displayed.

Although not shown in FIG. 1, the power source of the image processing apparatus for golf swing analysis as described above may be configured to be started up in response to, for example, the input of money of a certain amount or more. It is desirable to promote

The output control section 16 receives the trigger signal St from the trigger output section 3 and the speed signal Sv from the speed sensor 4 in addition to the operation signal from the operation section 21 as described above. The following control is performed based on those input signals and data transfer with the storage unit 22 and a preset control program.

That is, in FIG. 4 and FIG. 5, the output control unit 16
The main part of the control contents is shown below, and this will be described below together with related operations. In FIG. 4, when the execution of the control program is started in response to turning on the power,
After executing the predetermined initialization step A1, the initial image output routine A2 is executed. In this routine A2, the switcher circuit 9 is instructed to give the image signal from the CCD camera 1 to the mixing circuit 15, and
The output circuit 17 is instructed to apply the image signal from the mixing circuit 15 to the color monitor 18. As a result, the image captured by the CCD camera 1 is displayed on the color monitor 18 in real time.

After the execution of the initial image output routine A2, the operation mode setting step A3 for updating and storing the operation content indicated by the operation signal from the operation unit 21 in the storage unit 22 as the operation mode is executed. Specifically, in step A3, the type of golf club used, which is input by the key switch group 21a, "normal reproduction"
Type of reproduction image input by the key switch 21b for reproduction and the key switch 21c for "time-lapse photography", "print"
Key switch 21d and "recording" key switch 21
The print command and the recording command by e are stored.

After that, it is judged whether or not the manual switch 21f of the operation section 21 is turned on (step A4), and when it is turned on, it is judged as the manual mode selection state and shown in FIG. Each step is executed, but if it is not turned on, this is determined to be the auto mode selection state.

When the auto mode is selected, it is judged whether or not the clear switch 21g is turned on (step A5). If the clear switch 21g is turned on, the first and second steps are performed.
Step A for clearing the monitor memories 13 and 14 of
6. Step A7 for initializing the operation mode stored in the storage unit 22 in the operation mode setting step A3 is sequentially executed, and the process returns to step A2.

In the state where the clear switch 21g is not turned on ("NO" in step A5), it is determined whether or not the trigger signal St is input (step A8), and if it is not input, the process returns to step A3. If it is input, that is, if the golf ball set on the tee is hit by the golf club, step A9 for creating a superimposing image signal is executed.

Specifically, in step A9, data indicating how many times the trigger signal St has been input (ie, hitting the golf ball) and the type of club to be used based on the operation signal from the key switch 21a group are selected. A superimposing image signal including data indicating the head speed based on the speed signal Sv and data indicating the type of sphere (slice, hook or straight) determined based on the detection result of the face angle detecting means (not shown). In step A10, the image signal for superimposing is output to the mixing circuit 15.

After the execution of step A10, either the normal reproduction mode in response to the "normal reproduction" key switch 21b being turned on or the time-lapse reproduction mode in response to the "time-lapse" key switch 21c being turned on is selected. It is determined whether or not it has been performed (steps A11 and A12).

When the normal reproduction mode has been selected, the first monitor memory 13 for the switcher circuit 9 is selected.
Step A13 for instructing the first monitor memory 13 to output the latest image signal group, and the output circuit 17 for outputting the image signal from the mixing circuit 15 to the color monitor. The monitor continuous image output routine A14 instructing to give 18 is sequentially executed.

As a result, the color monitor 18 has the first
210 frames stored in the monitor memory 13 (7
Second minute) image signal, that is, the latest image signal including before and after the moment when the golf ball is hit by the golf club is displayed as a continuous image, and by the superimposing image signal created in step A9. The data shown is what is projected. It should be noted that FIG. 6 schematically shows a display example of the color monitor 18 in this case, and “5I” in the superimposing image in FIG. 6 means the 5th iron.

If the time-lapse playback mode is selected ("YES" in step A12), step A15 for instructing the switcher circuit 9 to connect to the second monitor memory 14, the second step is executed. A monitor time-lapse image output routine for instructing the monitor memory 14 to output the latest image signal group and for instructing the output circuit 17 to apply the image signal from the mixing circuit 15 to the color monitor 18. A16 is sequentially executed.

As a result, the color monitor 18 displays the second
The image signals for 16 frames stored in the monitor memory 14 are displayed, that is, the latest ones of the time-lapse image signal group at the moment when the golf ball is hit by the golf club and at a predetermined timing before and after that are displayed. The data indicated by the superimposing image signal created in step A9 is displayed. Incidentally, FIG. 7 schematically shows a display example of the color monitor 18 in this case, and in this example, the image signals of the respective frames are collectively displayed. However, it goes without saying that the image signal for each frame may be sequentially displayed, or a predetermined number of images may be sequentially displayed. still,
In FIG. 7, each frame number (see FIG. 3) is displayed for each image signal for reference, but such display may be performed as needed.

The monitor continuous image output routine A14 and the monitor time-lapse image output routine A16 as described above.
After executing any of the above, the selection state of the print mode and the recording mode is judged based on the ON state of the "print" key switch 21d and the "recording" key switch 21e (steps A17, A18). If neither is selected, the process returns to the operation mode setting step A3.

When the print mode is selected ("YES" in step A17), it is determined whether or not the time-lapse reproduction mode corresponding to the "time-lapse" key switch 21c being turned on is selected (step S17). Step A19).

When the time-lapse reproduction mode is selected, that is, when the step A15 and the monitor time-lapse image output routine A16 are executed, the image signal from the mixing circuit 15 is output to the output circuit 17. After executing the time-lapse image output routine for printing A20 for instructing the black-and-white printer 19 to give the following, the process proceeds to step A18.

As a result, the monochrome printer 19 indicates the latest 16-frame image signal stored in the second monitor memory 14 by the superimposing image signal created in step A9. It will be printed out with the data.

If the time-lapse playback mode is not selected in the print mode selected (step A)
19 to “NO”), the second to switcher circuit 9
After execution of step A21 for instructing to connect to the monitor memory 14 and step A22 for instructing to output the latest image signal group to the second monitor memory 14, the above-mentioned time-lapse image output for printing is executed. The routine A20 is executed. Therefore, in this case as well, the monochrome printer 19 performs the above-described printout.

When the recording mode is selected ("YES" in step A18), it is determined whether or not the normal reproduction mode corresponding to the "normal reproduction" key switch 21b being turned on is selected (step S18). A23).

When the normal reproduction mode is selected, that is, when the step A13 and the monitor continuous image output routine A14 are executed, the image signal from the mixing circuit 15 is recorded to the output circuit 17. Recording image output routine A for instructing the device 20
After executing 24, the process returns to the operation mode setting step A3.

As a result, the recording device 20 uses the latest image signal of 210 frames stored in the first monitor memory 13 as the data indicated by the image signal for superimposing created in step A9. With that, it will be recorded as a continuous image.

If the normal reproduction mode is not selected in the recording mode selected state (“NO” in step A23), the switcher circuit 9 is instructed to connect to the first monitor memory 13. Step A2
5. After executing step A26 for instructing the first monitor memory 14 to output the latest image signal group, the recording image output routine A24 is executed. Therefore, in this case, Also, the above-described recording is performed in the recording device 20.

On the other hand, in FIG. 5, at step A4, "Y
The control contents when the "ES" is determined, that is, when the manual mode is selected are shown, which will be described below. That is, when it is determined to be "YES" in step A4, it is sequentially determined whether the "normal reproduction" key switch 21b, the "frame shot" key switch 21c, and the "print" key switch 21d are turned on (step A2).
7 to A29) and when none of the key switches 21b to 21d are turned on, the process returns to step A3.

When the "normal reproduction" key switch 21b is turned on, of the image signal groups stored in the first monitor memory 13, the image signal group related to the ball hitting operation is reproduced. In order to request the operator (player) whether or not the key switch 21
Guidance for urging the player to input the number of the ball hitting operation is displayed by using the number keys of the group a (step A30). Such guidance display is continued for a period until a number for hitting a ball is input through the group of key switches 21a or until a fixed time (about 5 to 10 seconds) elapses (steps A31 and A32). When the fixed time has elapsed without inputting the number, the process proceeds to step A28.

On the other hand, if a number is input before the elapse of the certain time, the image signal group corresponding to the number input as described above is stored in the first monitor memory 13. It is determined whether or not there is data (step A33), and if there is no data, the process proceeds to step A28. In such a case, a guidance such as "Please start over from the beginning" may be displayed on the display panel 21h.

If "YES" is determined in the step A33, the superimposing image signal related to the image signal group corresponding to the input number is output to the mixing circuit 15 (step A34). Then
Step A35 instructing the switcher circuit 9 to connect to the first monitor memory 13, and instructing the first monitor memory 13 to output the image signal group corresponding to the input number, Output circuit 17
On the other hand, the monitor continuous image output routine A36 for instructing the color monitor 18 to be supplied with the image signal from the mixing circuit 15 is sequentially executed, and then the process proceeds to step A29.

As a result, the color monitor 18 displays the first
210 frames stored in the monitor memory 13 (7
Seconds) image signal group, that is, the image signal group including the front and back of the moment when the golf ball is hit by the golf club, which corresponds to the input number is displayed as a continuous image and the super image corresponding to that image is displayed. Data corresponding to the image signal for imposing is displayed.

Also, the "time-lapse" key switch 21c
When is turned on (“YES” in step A28), it is operated which of the image signal groups stored in the second monitor memory 14 the image signal group related to the ball hitting motion is reproduced. In order to make a request to the player (player), guidance is displayed on the display panel 21h to prompt the user to input the number of the ball hitting operation using the numeric keys of the key switch 21a group (step A37). Such guidance display continues for a period until a number for hitting a ball is input through the group of key switches 21a or until a fixed time (about 5 to 10 seconds) elapses (steps A38, A39). When a certain time has elapsed without inputting a number, the process proceeds to step A29.

On the other hand, if a number is input before the elapse of a certain time, the data of the image signal group corresponding to the number input as described above in the second monitor memory 14. It is judged whether or not there is (step A
40) If there is no data, the process proceeds to step A29. Even in such a case, guidance such as "Please start over from the beginning" may be displayed on the display panel 21h.

If "YES" is determined in step A40, the superimposing image signal related to the image signal group corresponding to the input number is output to the mixing circuit 15 (step A41). Then
Step A42 instructing the switcher circuit 9 to connect to the second monitor memory 14, instructing the second monitor memory 14 to output the image signal group corresponding to the input number, and Output circuit 17
In response to step S29, a time-lapse image output routine for monitoring A43 for instructing the image signal from the mixing circuit 15 to the color monitor 18 is sequentially executed.
Move to.

As a result, the color monitor 18 displays the second
The image signal group for 16 frames stored in the monitor memory 14 of the above, that is, the input number of the time-lapse image signal group at a predetermined timing before and after the golf ball is hit by the golf club. The object is displayed, and the data corresponding to the image signal for superimposing corresponding to the image is displayed.

Further, the "print" key switch 21
If d is turned on (“YES” in step A29), the image signal group related to the ball hitting operation among the image signal groups stored in the second monitor memory 14 is to be printed out. In order to request the operator (player) to press the display panel 21h, the key switch 21a is pressed.
Guidance for prompting the input of the number for the ball hitting operation is displayed by using the numerical keys of the group (step A44). Such a guidance display is displayed until a number for hitting a ball is input through the group of key switches 21a, or until a certain time (5
It continues for a period of time (about 10 seconds) (steps A45, A46). When the fixed time has elapsed without inputting the number, the process returns to step A3.

On the other hand, if a number is input before the elapse of a certain time, the data of the image signal group corresponding to the number input as described above in the second monitor memory 14. It is judged whether or not there is (step A
47), if there is no data, return to step A3.
Even in such a case, guidance such as "Please start over from the beginning" may be displayed on the display panel 21h.

If "YES" is determined in the step A47, the superimposing image signal related to the image signal group corresponding to the input number is output to the mixing circuit 15 (step A48). Then
Step A49 instructing the switcher circuit 9 to connect to the second monitor memory 14, instructing the second monitor memory 14 to output the image signal group corresponding to the input number, and Output circuit 17
On the other hand, after executing a time-lapse image output routine for printing A50 for instructing the monochrome printer 19 to receive the image signal from the mixing circuit 15, step A is executed.
Return to 3.

As a result, the monochrome printer 19 causes the image signal group for 16 frames stored in the second monitor memory 14, that is, the frame at the moment when the golf ball is hit by the golf club and at a predetermined timing before and after the golf ball. The captured image signal group corresponding to the input number is printed out together with the data indicated by the superimposing image signal corresponding to the image signal.

In short, according to the golf swing analysis image processing apparatus of the above-described embodiment, when the CCD camera 1 hits a golf ball set on the tee with a golf club, the player is included. 30 shots per second of the area are stored for a predetermined period before and after striking, and from among the images of many frames over such a predetermined period, the frame shot image at the moment of striking and the moment Time-lapse images of multiple frames (9 frames) at a predetermined timing within a range traced back for 5 seconds,
In addition, a plurality of frames (five frames) of frame-taken images at a predetermined timing within a range of 2 seconds from the above moment can be automatically extracted and reproduced or printed out as a total of 16 frames of divided images.

As a result, the 16-frame divided image becomes a state in which the player's swing state in a predetermined period before and after the golf ball is hit is chronologically represented, and the player's take-back of the golf club is followed through. 16 about a series of swing motions up to
It is possible to automatically obtain a reproduced video or printed matter showing images for each frame without human intervention, and it is possible to effectively check a golf swing based on the reproduced video or printed matter. Of course, according to the apparatus of the present embodiment, an operator, which has been necessary in the past, is unnecessary, so that it is possible to realize a reduction in utilization cost. Moreover, since the image of the golf ball can be reproduced as a continuous image for a total of 7 seconds from 5 seconds before the hit of the golf ball to 2 seconds after the hit, the golf swing is checked based on the reproduced video. It becomes very convenient in practical use.

Since the above-described 16-frame divided image is developed back and forth around the reference image signal closest to the image at the moment of hitting the golf ball, it is better to check the golf swing. It can be done more effectively. Furthermore, in obtaining the divided images as described above, one of the images of a large number of frames over a predetermined period is
Each timing for extracting the images of 6 frames is set by the setting means 12
The image of each frame can be reliably set to a state corresponding to a series of swing movements from the takeback of the golf club to the follow-through by the player. Even if there are players having different swing speeds (such as distinction between male and female), it is possible to sufficiently deal with this, and it is possible to utilize the images of a large number of frames that have been stored without waste. .

In the above embodiment, the golf ball set on the tee is hit, but a golf ball-like object may be hit.

A second embodiment of the present invention is shown in FIGS. 8 to 13, and only the parts different from the first embodiment will be described below. That is, in the second embodiment, based on the image signal group for each 210 frames stored in the first monitor memory 13, a frame-taken image at an arbitrary timing during each ball hitting operation of the golf ball, for example, 16 The feature is that the frames can be extracted and edited.

For this reason, as shown in FIG.
A key switch 21i for "editing" is added, and an editing monitor device 23 is installed. This editing monitor device sets a 16-divided time-lapse image display area 24a and an editor area 24b in a monitor screen 24 composed of a liquid crystal panel or a CRT display, and also "←", "→", " The operation unit display areas 24c to 24h of "cancel", "set", "print", and "end" are set, and further, the respective time-lapse image display areas 24a and the operation unit display areas 24c to 24h are independently set. A transparent touch switch (not shown) is provided. The operation signal of the touch switch group is input to the output control unit 16 of the output control device 8 (see FIG. 1).

FIG. 9 shows the internal structure of the output circuit 17. In FIG. 9, the controller 25 in the output circuit 17 receives an image signal from the mixing circuit 9 (see FIG. 1) and a command signal from the output control section 16, and receives a color monitor 18, a monochrome printer 19 and a recording device 2.
In addition to the function of outputting an image signal to 0, the output control unit 1
6, a function of exchanging signals with the buffer memory 26, the display frame register 27, and the finalizing memory 28 in the output circuit 17, and display control of the monitor screen 24 in the editing monitor device 23. It has a function to do.

10 to 13 show the contents of the control routine of the portion related to the present embodiment among the control contents of the output control section 16, which will be described below. That is, this control routine is executed when the “edit” key switch 21i of the operation unit 21 is turned on. First, as shown in FIG. 10, the control routine is stored in the first monitor memory 13. In order to request the operator (player) to edit the image signal group related to the number of hitting motions of the image signal group being displayed, the display panel 21h of the operation unit 21 is operated by a group of key switches 21a. Guidance prompting the user to input a number for hitting the ball is displayed using the numeric keys (step B1). Such guidance display is
It continues for a period until the number of the ball hitting operation is input through the group of key switches 21a or until a fixed time (about 5 to 10 seconds) elapses (step B2,
B3). When a certain time has passed without inputting a number, the process returns to the main program.

On the other hand, if a number is input before the elapse of the certain period of time, the image signal group corresponding to the number input as described above is stored in the first monitor memory 13. It is judged whether or not there is data (step B4), and if there is no data, the process directly returns. Incidentally, at the time of such a return, the display panel 21h
On the other hand, for example, guidance such as "Please start over" may be displayed.

If "YES" is determined in the step B4, the superimposing image signal related to the image signal group corresponding to the input number is output to the mixing circuit 15 and the switcher circuit 9 is output.
Step B6 for instructing to connect to the first monitor memory 13, and instructing the first monitor memory 13 to output the image signal group (210 frames) corresponding to the input number. After step B7 and step B8 for instructing the output circuit 17 to store the image signals of 210 frames from the mixing circuit 15 in the buffer memory 26 are sequentially executed, the process proceeds to the initial screen display step B9.

When the image signals are stored in the buffer memory 26, for example, the frame numbers in the order of occurrence are added to each image signal, and the image immediately before the trigger signal St is generated is added. The corresponding reference image signal has a flag (mark) indicating that effect.

In the initial screen display step B9, of the 210 frame image signals stored in the buffer memory 26 in step B8, the flagged reference image signal is displayed in the editor area 24b as an initial screen. The frame number of the image signal thus displayed is stored in the display frame register 27. The image displayed as the initial screen may be the first one or the last one of the image signals for 210 frames, or the image signal in the middle.

Then, the operation state of the touch switch on the operation portion display areas 24c and 24d where "←" and "→" are displayed is judged (step B10), and when it is operated, the frame advance processing routine B11 is executed. Run. The contents of this frame advance processing routine B11 are shown in FIG.

That is, in FIG. 11, in the frame advance processing routine B11, based on the frame number of the image signal being displayed in the editor area 24b and the type of the touch switch operated, the image signal to be displayed next is selected. The frame number is determined (step C1). Next, the display frame register 27
The frame number stored in is updated to the frame number of the next display image signal determined as described above (step C2),
The display screen of the editor area 24b is switched to the one corresponding to the image signal of the updated frame number (step C
3) Then return.

Returning to FIG. 10, after execution of the frame advance processing routine B11 and at step B10, "N"
When it is determined to be "O", the operation state of the touch switch on the operation portion display area 24f where "set" is displayed is determined (step B12), and when it is operated, the set processing routine B13 is executed. The contents of this set processing routine B13 are shown in FIG.

That is, in the set processing routine B13 in FIG. 12, first, whether or not the image being displayed in the editor area 24b is confirmed, that is, the image signal and its frame number are stored in the confirmation memory 28. It is determined whether or not there is (step D1). Here, when "YES" is determined, the process is returned as it is to prevent double confirmation, and when "NO" is determined,
The image signal being displayed in the editor area 24b is stored in the fixed memory 28 together with the frame number (step D
2).

Next, step D3 for rearranging the image signals stored in the finalizing memory 28 in the ascending order of frame numbers (however, if the number of stored image signals is one, the rearrangement is not substantially performed), and the finalizing memory 28. After executing step D4 for displaying all the image signals stored in the above step 1 in the frame-by-frame image display area 24a in order of frame number, the process returns.

Returning to FIG. 10, after the execution of the set processing routine B13 and at the step B12, "NO" is returned.
If it is determined that the operation state of the touch switch on the operation unit display area 24e in which "Cancel" is displayed is determined (step B14), the cancel processing routine B15 is executed. The contents of the cancel processing routine B15 are shown in FIG.

That is, in FIG. 13, in the cancel processing routine B15, first, the time-lapse image display area 24 is displayed.
In order to request the operator to cancel which of the images displayed in a, the display panel 21 of the operation unit 21
For h, a guidance for urging the user to press the image to be canceled with a finger (corresponding to operating a touch switch corresponding to the time-lapse image display area 24a) is displayed (step E1). Such guidance display continues for a period until the pressing operation is performed or until a fixed time (about 5 to 10 seconds) elapses (steps E2 and E3). When the fixed time has elapsed, the process returns to the main program.

On the other hand, when the touch switch corresponding to the time-lapse image display area 24a is operated before the elapse of the predetermined time, the image displayed in the time-lapse image display area 24a is displayed. Step E4 of deleting the image signal and the frame number corresponding to the above from the finalizing memory 28, Step E5 of rearranging the image signals stored in the finalizing memory 28 in ascending order of the frame number, and all the image signals stored in the finalizing memory 28. After executing step E6 for displaying the images in the frame-by-frame image display area 24a in order of frame numbers, the process returns.

Returning to FIG. 10, after execution of the cancel processing routine B15 and at the step B14, "N"
If "O" is determined, the operation state of the touch switch on the operation unit display area 24g in which "Print" is displayed is determined (step B16), and if it is operated, the print output processing routine B17 is executed. . This routine 1
In No. 7, the image signal stored in the decision memory 28 is printed out through the monochrome printer 19, and the print layout is performed in the layout displayed in the time-lapse image display area 24a.

Such a print output processing routine B1
7, and when it is determined to be “NO” in step B16, the on-operation state of the “edit” key switch 21i and the touch switch on the operation unit display area 24h in which “end” is displayed are displayed. The operation state is judged (steps B18 and B19), and if neither is operated, the process returns to step B10.

When the key switch 21i is turned on, step B20 for clearing the contents stored in the buffer memory 26 is executed and the process returns to step B1, whereby the control after step B1 is performed again. Will be done. Further, when the touch switch on the operation unit display area 24h displaying "END" is operated, step B21 for clearing the stored contents of the buffer memory 26 is executed and the process returns.

In summary, according to the present embodiment, the desired 16 frames (of course belonging to the same image signal group) are selected from the 210 frame image signal groups stored in the first monitor memory 13. Object) can be extracted and edited, and the edited result can be printed out through the monochrome printer 19. As a result, 16 frames of images of a series of swing actions from the takeback of the golf club to the follow through by the player can be obtained in a state most suitable for the analysis of the swing, and the printout result is obtained. The golf swing can be efficiently checked based on this.

When the time-lapse image editing function is provided as in the second embodiment, the second transmission buffer 11 is used.
The function of automatically extracting the image signals for 16 frames using the second monitor memory 14 may be provided if necessary.

FIG. 14 shows a third embodiment of the present invention, and only the portions different from the first and second embodiments will be described below. That is, in the third embodiment, of the image signal group for each 16 frames stored in the second monitor memory 14, the desired 16 image signals are temporarily displayed in the time-lapse image display area 24a. , Those display images are stored in the first monitor memory 13
By replacing the image signal selected from the image signal group including the 16 frames displayed as described above in the image signal group of 10 frames each, the image of 16 frames at the time of each hitting operation of the golf ball is obtained. It has a feature that it can be edited.

FIG. 14 shows the content of the control routine of the portion related to the present embodiment in the control content of the output control section 16, which will be described below. That is, this control routine is performed by the "edit" key switch 2 of the operation unit 21.
This is executed when 1i is turned on. First, of the image signal groups of 16 frames each stored in the second monitor memory 14, the image signal group related to the ball hitting operation. In order to request the operator (player) to edit the
Using the numeric keys of the key switch 21a group, a guidance prompting the user to input a number for hitting the ball is displayed (step F
1). Such a guidance display is displayed by the key switch 21.
It continues for a period until the number of hitting motion is input through the group a or until a fixed time (about 5 to 10 seconds) elapses (steps F2 and F3). When a certain time has passed without inputting a number, the process returns to the main program.

On the other hand, if a number is input before the elapse of the certain period of time, the image signal group corresponding to the number input as described above is input to the second monitor memory 14. It is judged whether or not there is data (step F4), and if there is no data, the process directly returns. Incidentally, at the time of such a return, the display panel 21h
On the other hand, for example, guidance such as "Please start over" may be displayed.

If "YES" is determined in step F4, step F5 of outputting the superimposing image signal related to the image signal group corresponding to the input number to the mixing circuit 15, the switcher circuit 9
To the first monitor memory 13 and the second monitor memory 14 in step F6, an image signal group of 210 frames corresponding to the input number to both monitor memories 13 and 14 and Step F for instructing to output image signals for 16 frames respectively
After executing 7, the first processing routine F8 is executed.

In this initial processing routine F8, the output circuit 17 is instructed to store the image signals of 210 frames from the mixing circuit 15 in the buffer memory 26, and at the same time 16 frames from the mixing circuit 15 are stored. The image signal is instructed to be stored in the finalizing memory 28 in the state in which the frame numbers are arranged in ascending order. In response to this, the image signals for 16 frames stored in the finalizing memory 28 are stored in The images are displayed in the photographed image display area 24a in the order of frame numbers.

In the first processing routine F8, when the image signals for 210 frames are stored in the buffer memory 26 as described above, each image signal is stored in the second monitor memory 14. The frame number of the same form as the image signal for 16 frames, that is, the frame number of the reference image signal is set to "0", the older frame number is a minus sign, and the newer frame number is a plus sign. It is attached. It should be noted that, of the image signals for these 210 frames, a predetermined image signal is displayed in the editor area 24b as an initial screen. In such a display state,
The frame number of the display image signal is stored in the display frame register 27.

Next, the operation state of the touch switch on the operation portion display areas 24c and 24d where "←" and "→" are displayed is judged (step F9), and when it is operated, the frame advance processing routine F10 is executed. Run. The content of this frame advance processing routine F10 is similar to that of the frame advance processing routine B11 in the second embodiment, and is based on the frame number of the image signal being displayed in the editor area 24b and the type of touch switch operated. Then, the frame number of the image signal to be displayed next is determined, and the frame number stored in the display frame register 27 is updated to the frame number of the next display image signal determined as described above. Control is performed to switch the display screen of 24b to a screen corresponding to the image signal of the updated frame number.

After execution of the frame advance processing routine F10, and when "NO" is determined in the above step F9, the operation state of the touch switch corresponding to the time-lapse image display area 24a is determined (step F11). When operated, the frame switching processing routine F12 is executed.

In the frame switching processing routine F12, the same image signal as the image signal displayed in the framed image display area 24a corresponding to the operated touch switch is called from the buffer memory 26 to call the editor area 24.
At the same time, the stored frame number of the display frame register 27 is updated to that corresponding to the new display image signal. In the frame switching processing routine F12, the brightness of the time-lapse image display area 24a corresponding to the operated touch switch is lowered, and the display area 24a is displayed.
It is also possible to adopt a configuration in which a message indicating that is selected is displayed.

After the frame switching process routine F12 is executed, and when "NO" is determined in the step F11, the operation section display area 24 in which "SET" is displayed is displayed.
The operation state of the touch switch on f and the touch switch on the operation unit display area 24e in which "Cancel" is displayed is determined (step F13), and if it is operated, the confirmation processing routine F14 is executed.

In the confirmation processing routine F14, whether or not the image displayed in the editor area 24b is confirmed when the touch switch on the operation portion display area 24f where "SET" is displayed is operated, That is, it is determined whether or not the image signal and its frame number are stored in the confirmation memory 28. If the image signal and the frame number are confirmed, the process is returned as it is to prevent double confirmation. In the non-confirmed state, the image signal being displayed in the editor area 24b is stored in the confirmation memory 28 together with the frame number, and the image signals stored in the confirmation memory 28 are rearranged in ascending order of frame numbers. . When the touch switch on the operation unit display area 24e in which "Cancel" is displayed is operated, the state before the frame switching processing routine F12 is performed is returned to.

After execution of such a confirmation processing routine F14 and when "NO" is determined in the above step F13, "print" is displayed on the operation portion display area 2
The operation state of the touch switch on 4g is judged (step F15), and when it is operated, the print output processing routine F16 is executed. In this routine 16, the image signal stored in the fixed memory 28 is transferred to the monochrome printer 1
The print layout is performed through 9, and the print layout is performed in the arrangement displayed in the time-lapse image display area 24a.

Such a print output processing routine F1
After execution of step 6 and when it is determined to be “NO” in step F15, the on-operation state of the “edit” key switch 21i and the touch switch on the operation unit display area 24h in which “end” is displayed are displayed. The operation state is judged (steps F17 and F18), and if neither is operated, the process returns to step F9.

When the key switch 21i is turned on, a step F19 for clearing the contents stored in the buffer memory 26 is executed and the process returns to the step F1, whereby the control after the step F1 is performed again. It will be. In addition, when the touch switch on the operation unit display area 24h in which “End” is displayed is operated,
Step F for clearing the contents stored in the buffer memory 26
Execute 20 and return.

In summary, according to the present embodiment, a desired one of the image signal groups of 16 frame sentences stored in the second monitor memory 13 is dividedly displayed in the framed image display area 24a, while Among the image signal groups of 210 frames each stored in the monitor memory 13 of 1, each image signal of the image signal group including 16 frames displayed as described above is selectively displayed in the editor area 24b, By replacing the display image in the time-lapsed image display area 24a with the light display image, it is possible to edit the image of 16 frames at each ball hitting operation of the golf ball, and the edited result is displayed through the monochrome printer 19. It is designed to be printed out. As a result, it is possible to easily correct an image of 16 frames automatically obtained for a series of swing actions from the takeback of the golf club to the follow through by the player to a state most suitable for the analysis of the swing. .

[0109]

As is apparent from the above description, according to the first aspect of the invention, an image of a region including a player who hits a golf ball or a golf ball-like object set on a tee with a golf club. Is provided with an image pickup means for sequentially outputting image signals obtained by shooting a predetermined number of frames per second, and an image storage means for sequentially updating and storing such image signals by the number of frames corresponding to the latest fixed period, When a player hits a golf ball or a golf ball-like object with a golf club, the image storage means is used to extract and output image signals for a predetermined number of frames in a predetermined period before and after the moment of hitting. Therefore, a series of swing motions from the takeback of the golf club to the follow through by the player An image signal of a predetermined frame number of of stomach can enable the automatic getting without human intervention, it is intended to achieve the beneficial effects of such can be achieved a reduction in the use cost.

According to the second aspect of the present invention, the above-described image signal extraction is performed with the reference image signal closest to the image at the moment when the golf ball or golf ball-like object is hit as the center. Therefore, the golf swing can be checked more effectively.

According to the third aspect of the present invention, each timing for extracting the image signals of a predetermined number of frames from the image storage means can be adjusted by an external operation. Therefore, the image signal of each frame can be adjusted by the player. This makes it possible to surely set the state corresponding to a series of swing operations from the takeback to the follow through of the golf club, and to utilize the image signals of each frame stored in the image storage means without waste.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an electrical configuration of a first embodiment of the present invention.

FIG. 2 is a front view of an operation unit

FIG. 3 is a diagram showing an image signal extraction timing.

FIG. 4 is a flowchart showing control contents, part 1

FIG. 5 is a flowchart 2 showing the control contents.

FIG. 6 is a diagram showing a display example 1

FIG. 7 is a diagram showing a display example 2

FIG. 8 is a front view of an operation unit and an editing monitor device according to a second embodiment of the present invention.

FIG. 9 is a functional block diagram showing an electrical configuration of a main part.

FIG. 10 is a flowchart 1 showing control contents.

FIG. 11 is a flowchart 2 showing control contents.

FIG. 12 is a flowchart 3 showing control contents.

FIG. 13 is a flowchart showing the control contents, part 4

FIG. 14 is a flowchart showing the control contents of the third embodiment of the present invention.

[Explanation of symbols]

In the drawing, 1 is a CCD camera (imaging means), 2 is an impact sensor (detection means), 4 is a speed sensor, 6 is a primary processing device, 7 is a primary processing circuit (signal processing means), and 7a is a buffer memory (image storage). Means), 8 is an output control device (output means), 9 is a switcher circuit, 12 is setting means,
13 is a first monitor memory, 14 is a second monitor memory, 16 is an output control unit, 17 is an output circuit, 18 is a color monitor, 19 is a monochrome printer, 20 is a recording device, 2
Reference numeral 1 is an operation unit, 23 is an editing monitor device, and 24 is a monitor screen.

Claims (3)

[Claims] 1. An area including a player hitting a golf ball or a golf ball-like object set at a predetermined position with a golf club is photographed at a rate of a predetermined number of frames per second, and image signals of the respective frames are sequentially output. And an image pickup means for storing the image signal from the image pickup means for a predetermined time, and the new image signal is stored while the oldest image signal is deleted every time a new image signal is input. Image storage means for sequentially storing, detection means for generating a trigger signal by detecting a moment when the golf ball or golf ball-like object is hit by a golf club, and a trigger signal from the detection means is inputted. An image signal stored in the image storage means is provided in a predetermined range within a range of a predetermined time from the input timing of the trigger signal. A signal processing means for extracting only the number of frames and a predetermined number of frames within a range of a predetermined time from the input timing, and an output means for arranging and outputting the image signals extracted from the signal processing means in the order of generation. An image processing apparatus for golf swing analysis, comprising: 2. The signal processing means, when the trigger signal is input, extracts the image signal at the time of input as a reference image signal from the image storage means, and traces back a predetermined time from the reference image signal. The image signal for a predetermined number of frames within the range is extracted, and the image signal for a predetermined number of frames within a range after a predetermined time has elapsed from the reference image signal is extracted. The image processing device for golf swing analysis described. 3. The golf according to claim 1, wherein the signal processing means is provided so that each timing for extracting the image signals of a predetermined number of frames from the image storage means can be adjusted by an external operation. Image processing device for swing analysis.