JPS62286389A - Video signal recording and reproducing device - Google Patents

Abstract

PURPOSE:To easily judge the amount of the moving of a reproduced object- image based on an axis line displayed together with the object-image by providing to a reproducing device an axis line generating means that outputs an axis line disposition pattern signal in synchronism with the reading of a video data. CONSTITUTION:If a reproduction switch SW 2 is depressed, a video data is read out from an image memory 10, and respective axis line disposition pattern signals are read out from a vertical axis line disposition pattern ROM 16 and a leteral axis line disposition pattern ROM 18 both forming the axis line generating means, in synchronism with the said reading of video data in accordance with an address designation from an address generation circuit 14, the signals are supplied to an analog switch 20 via diodes D1-D5 and D5-D8. At this time, the kind of axis line is specified by means of an axis line specifying switch SW4. Based on this specifying, the axis line disposition pattern signal passes through the switch 20 by a gate controlling signal supplied to an analog switch 20 from a CPU 8 and superposed to a video signal read out from the image memory 10 and displayed on a monitor television 24.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a video signal recording/reproducing device, and in particular:
The present invention relates to a video signal recording and reproducing device that continuously records and reproduces video signals of a continuously moving subject, and also displays a reproduced image with an axis line superimposed on it to facilitate confirmation of the amount of movement of the subject.

<Prior art> Conventionally, a device has been proposed that can correct the ball hitting form by continuously recording the ball hitting form such as golf swing or bat swing when hitting a ball placed at the center position, and viewing the playback image. has been done. Such a video signal recording/reproducing device extracts video data of an appropriate screen from video data of continuous screens obtained from a video input device, and records this in an image memory. Then, the video data recorded in the image memory is retrieved in the order in which it was recorded and output to the monitor television or printer, so that the subject image is continuously reproduced and displayed on the monitor television or printer.

<Problems to be Solved by the Invention> By the way, when looking at the reproduced image obtained as described above and attempting to correct the batted ball form, etc., the subject, for example 1. It is important to know how the amount of body movement changes with the ball-striking motion. However, since there is no standard for determining the amount of movement of the subject in reproduced images obtained by conventional devices, it is difficult to determine this.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a video signal recording/reproducing device that allows the amount of movement of a subject to be easily determined from a reproduced image.

Means for Solving the Problems> In order to achieve the above object, the present invention has the following configuration.

That is, the present invention includes a video input device, an image memory for storing multiple screens of video data input from the video human power device, a control means for controlling writing to and reading from the image memory, and a control means for controlling writing and reading from the image memory. A video signal recording/reproducing device comprising a display means for displaying a reproduced image based on the output video data, and an axis generation means for outputting an axis arrangement pattern signal in synchronization with reading out the video data. It is characterized by the fact that it is equipped with

Effects> When the axis arrangement Bakun signal is output in synchronization with the reading of the video data, the axis pattern is displayed on the display means superimposed on the reproduced image of the subject.

The operator can easily confirm the amount of movement of the subject by comparing this axis line pattern with the reproduced image.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram schematically showing the configuration of a video signal recording/reproducing apparatus according to an embodiment, and particularly shows an apparatus for recording/reproducing golf swings.

A video signal output from a video camera 2 serving as a video input device is provided to an A/D converter 4 and a synchronization separation circuit 6. Video data obtained by A/D converting the video signal is given to the CPU 8 as a control means. The CPU 8 controls writing and reading of video data to and from the image memory 10 . The image memory 1o has a capacity to store video data for 32 screens. C.P.
U8 includes a pole detector 12 and a detection lever switch SW.
Signals are given from I, reproduction switch SW2, printer switch SW3, and axis line designation switch SW4. The functions of the above-mentioned switches etc. will be made clear in the explanation of the operation described below.

On the other hand, in the synchronization separation circuit 6, the horizontal synchronization signal H3 and the vertical synchronization signal S extracted from the video signal are sent to the CPU 8.
and address generation circuit 14. The address generation circuit 14 counts the horizontal synchronization signal H8 and the vertical synchronization signal VS to provide write/read addresses to the image memory 10, and also uses a vertical axis line arrangement pattern ROM16 and a horizontal axis line arrangement pattern RO as axis line generation means.
Give the read address to M l 8.

The vertical axis arrangement pattern ROM 16 stores axis arrangement patterns in the vertical direction on the screen. For example, it stores four types of axis arrangement pattern signals such that the number of axes displayed on the screen is 1, 2, 4, and 8. Output. On the other hand, the horizontal axis arrangement pattern ROM18 stores the horizontal axis arrangement pattern on the screen, and the vertical axis arrangement pattern ROM1
Outputs four types of axis arrangement pattern signals similar to No. 6.

Each output signal of the vertical axis arrangement pattern ROM16 and the horizontal axis arrangement pattern ROM18 is applied to the analog switch 2o via diodes D1 to D4 and diodes D5 to D8, respectively.

The analog switch 20 is controlled by the CPU 8 to pass any one of the four types of axis arrangement pattern signals.

By the way, the video data read out from the image memory 10 is given to the D/A converter 22 via the CPU 8 and converted into D/A converter 22.
/A conversion and then provided to the monitor television 24 and printer 26. On the other hand, the axis arrangement pattern signal that has passed through the analog switch 20 is transmitted through the variable grinding resistor iVR.
A monitor television 24 and a printer 26 are provided.

FIG. 2 is a perspective view showing the appearance of the video signal recording/reproducing apparatus described above.

In the figure, reference numeral 1 indicates a main recording/reproducing device according to this embodiment. A video camera 2 is attached to the upper end of a support rod 28 that stands substantially perpendicular to the floor. This video camera 2 is set at an angle such that it can photograph the golf swing of an operator 50 standing in front of this recording/reproducing device 1. A monitor television 24 is installed below the video camera 2. The recorded golf swing of the operator 50 is displayed on the monitor television 24. A ball detector 12 is provided at the base of the support rod 28 for detecting the presence or absence of a golf ball 52 placed at a predetermined position. Ball detector 12
The golf ball 52 is composed of a light illumination section (not shown) for irradiating light onto the golf ball 52 placed at the set position, and a light receiving section (not shown) for receiving the reflected light.

Alongside the ball detector 12, a blue lamp 30 and a red lamp 32 are provided to indicate the operating status of the device 1. A detection lever switch SWI for detecting the completion of the cent of the golf ball 52 is provided on the side surface of the box in which these lamps are installed. After the operator 50 places the golf ball 52 in the set position, the detection lever switch SWI is turned on, for example.
Recording is started by pressing with the golf club 54.

On the other hand, below the monitor television 24, there is a control box 34 housing a CPU 8, an image memory 10, etc. for processing video signals obtained from the video camera 2, and a printer 26 for printing recorded images. installed. Further, the control box 34 is attached with a reproduction switch SW2, a printer switch SW3, an axis line designation switch SW4, and the like. Axis line designation switch S
W4 is constituted by a changeover switch for selecting an arbitrary arrangement pattern from the four types of axis arrangement patterns.

Next, the operation of the above-mentioned device will be explained.

When the golf ball 52 placed at a predetermined position is detected by the ball detector 12, the CPU 8 turns on the red lamp 3.
2 and the blue lamp 30 to notify the operator 50 that recording preparations are complete. and,
When the operator 50 presses the detection lever switch SWI, only the red lamp 32 is extinguished and recording is started.

As a result, a video signal is output from the video camera 2. In the synchronization separation circuit 6, horizontal and vertical synchronization signals H3 and VS separated from the video signal are applied to an address generation circuit 14. The address generation circuit 14 specifies an address for storing video data converted into a digital signal in the image memory 10. As a result, the video data is sequentially stored in the image memory 10. Here, the image memory 10 reduces the required memory capacity by storing video data of consecutive screens every few frames. The timing for recording at intervals of several frames is given by the CPU 8 which receives the vertical synchronization signal VS from the synchronization separation circuit 6. When the video data is written to all of the image memory 10, the process returns to the first memory area and new video data is sequentially overwritten from the memory area.

When the golf ball 52 is hit and disappears from the predetermined position, this is detected by the ball detector 12. Based on this detection signal, the CPU 8 writes video data for a predetermined number of frames from the time of ball hitting into the image memory 10, and then stops the video data writing operation.

By performing such a writing operation, the golf swing before and after hitting the ball is continuously recorded.

Next, the operation when reproducing the video data written in the image memory 10 will be explained.

When the operator 50 presses the playback switch SW2, the CPU 8 sequentially reads video data from the image memory 10 based on this and outputs the data to the D/A converter 22.

The video signal obtained by D/A conversion in the D/A converter 22 is given to a monitor television 24, and recorded images are continuously played back. In addition, this playback switch SW2+
Although the above description has been made for continuous playback of recorded images, the playback switch may also include a frame-by-frame playback switch that advances the screen frame by frame each time the playback switch is pressed. On the other hand, when the printer switch SW3 is pressed, the printer 26 extracts, for example, eight images from the 32 recorded images and prints them continuously.

Next, the operation when displaying an axis line on a reproduced image will be explained.

When the playback switch SW2 is pressed, the video data is read out from the image memory 10 as described above, and the vertical axis line arrangement pattern ROM16 and the horizontal axis line arrangement pattern ROM1 are read out according to the address specification from the address generation circuit 14.
Each axis arrangement pattern signal is read out from B in synchronization with the reading of video data. Each read axis arrangement pattern signal is sent to the diodes D1 to D4. It is applied to the analog switch 20 via D5 to D8. At this time, when the type of axis is designated by the axis designation switch SW4, the CPU 8 sends the analog switch 20 based on this.
A gate control signal is given to. In response to this gate control signal, a specified axis arrangement pattern signal passes through analog switch 20 and is applied to monitor television 24 and printer 26 via variable resistor VR. As a result, the video signal read from the image memory 10 and the specified axis arrangement pattern signal are displayed on the monitor television 24 in a superimposed manner. At this time, when the printer switch SW3 is pressed, the reproduced image with the axis line displayed is printed. FIG. 3 shows an example of a reproduced image displayed along an axis. In the figure, A indicates a subject image, VL indicates a vertical axis, and HL indicates a horizontal axis. Note that by changing the resistance value of the variable resistor VR connected to the output side of the analog switch 20, the brightness of the displayed axis lines VL and HL can be freely changed.

Note that the format of the axis line display is not limited to that of the above-mentioned embodiment, and various changes can be made. For example, the axis line display may be displayed only on a monitor television and not printed, or vice versa. Furthermore, the axis may be either a vertical axis or a horizontal axis, other than the folded axis described in the embodiment.

Furthermore, it is also possible to reduce the number of axis lines when displaying on a monitor television and increase the number of axis lines when printing, or vice versa.

Further, in the description of the embodiments, an example was given of a device for recording and reproducing golf swings, but it goes without saying that the present invention can be applied to various other uses such as recording and reproducing bat swings. Nor.

<Effects of the Invention> As is clear from the above description, the video signal recording/reproducing device according to the present invention is equipped with an axis generation means that outputs an axis arrangement pattern signal in synchronization with reading out video data. This is very convenient because the amount of movement of the reproduced subject image can be easily determined based on the axis displayed together with the subject image.

[Brief explanation of the drawing]

FIG. 1 is a block diagram schematically showing the configuration of a video signal recording/reproducing device according to an embodiment of the present invention, FIG. 2 is an external perspective view of the device according to the embodiment, and FIG. 3 is an axis line representation. An example of a reproduced image is shown. 2... Video camera, 8... CPU, 10... Image memory, 14... Address generation circuit, 16... Vertical axis line arrangement pattern ROM, 18... Horizontal axis line heavy duty pattern ROM, 24. ...Monitor TV, 26...Printer.

Claims (1)

[Scope of Claims] A video input device, an image memory for storing video data of a plurality of screens inputted from the video input device, a control means for controlling writing to and reading from the image memory, and a control means for controlling writing to and reading from the image memory; Video signal recording and display means for displaying a reproduced image based on the output video data.
What is claimed is: 1. A reproducing apparatus for recording and reproducing video signals, characterized in that the apparatus comprises an axis generating means for outputting an axis arrangement pattern signal in synchronization with reading of the video data.