JPH10271426A - Video recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the video recording and reproducing device that is able to display a presentation video image which is used for comparison/diagnosis of golf swing motions by golf coaches and golf trainees. SOLUTION: In the transition to a reproduction, a CPU section 1 applies DMA transfer of digital video data stored in a main memory section 10 to an image data processing section 8, where the image data are expanded and stored in a buffer memory section 9. The image data processing section 8 expands the oldest digital video data at an upper left extreme position and stores digital video data by one image pattern consisting of 16 sets of still image data in the order of older image pickup time. In the case of the interlace NTSC, each still image is reproduced every 1/60 second so as to allow 16 still images with a time difference of 1/60 second to be displayed as time-varying images on a display section 7 in a form of a multi-screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording / reproducing apparatus, and more particularly, to storing a series of continuously photographed still images such as a golf swing and continuously reproducing the still images. The present invention relates to a video recording / reproducing apparatus for simultaneously displaying a moving image group including at least two moving images on the same screen.

[0002]

2. Description of the Related Art Conventionally, as a video recording / reproducing apparatus of this kind, a golf swing print apparatus (Japanese Patent Laid-Open No. 5-1562) has been known.
No. 7) and a golf swing form reproducing device (Japanese Patent Laid-Open No. 6-39070) are known. In these devices, a golf swing form is photographed by a video camera, and the video is recorded in a semiconductor memory. A series of operations of a golf swing is reproduced by dividing and displaying a still image on a monitor.

[0003]

However, in the conventional video recording / reproducing apparatus, since a series of operations of the golf swing divided and displayed on the monitor is reproduced as a still image, the swing motion is more accurate than a moving image. Not only can not be reproduced in, but when comparing and diagnosing golf swings,
This is insufficient as a presentation video to a golf practicer, and as a result, there is a problem in that even when pointing out a defect of the golf swing, the golfer lacks persuasive power.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to display a presentation image that can be used for comparison and diagnosis of a golf swing to a golf coach or a golf practitioner. An object of the present invention is to provide a video recording / reproducing device.

[0005]

According to a first aspect of the present invention, there is provided a video recording / reproducing apparatus which stores a series of continuously shot still image data and achieves the still image data. In a video recording / reproducing apparatus that simultaneously displays a moving image group composed of at least two or more moving images on the same screen by continuously reproducing image data, information relating to a shooting time of the series of still image data A reproduction control unit that controls reproduction of a moving image so that an arbitrary time difference occurs between the moving images in the moving image group based on the moving image.

According to a second aspect of the present invention, there is provided a video recording / reproducing apparatus according to the first aspect, wherein the video recording / reproducing apparatus comprises a screen dividing means for dividing a display screen for displaying the moving image group into at least two or more. A playback position defining unit that defines a playback position of each moving image in the moving image group. The reproduction position of the moving image is defined so that each moving image in the moving image group is displayed on the right side in order from the upper left display screen.

According to a third aspect of the present invention, in the video recording / reproducing apparatus according to the second aspect, the reproducing position specifying means specifies a reproducing position of each moving image in the moving image group. In this case, when the screen division unit reaches the rightmost of the divided display screens, the respective moving images in the moving image group are sequentially displayed on the right from the leftmost display screen at the bottom of the display screen. In this case, the playback position of the moving image is defined.

According to a fourth aspect of the present invention, in the video recording / reproducing apparatus according to any one of the first to third aspects, the video recording / reproducing apparatus according to any one of the first to third aspects is provided with all the moving images simultaneously displayed on the same screen. A still image creating means for creating a still image with an arbitrary time difference based on the image data. The video recording / reproducing device of the present invention according to claim 5 is
The video recording / reproducing apparatus according to claim 4, further comprising a still image display unit that displays the still image created by the still image creation unit.

According to a sixth aspect of the present invention, there is provided a video recording / reproducing apparatus according to the fourth or fifth aspect, wherein the still image printing means prints the still image created by the still image creating means. It is characterized by having.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a basic configuration of a video recording / reproducing apparatus according to the present invention. 1 is CPU
RAM having a ROM 1a for storing a control program and a plurality of flag areas required for control in addition to the microprocessor, and for temporarily storing data and the like.
1b for controlling various input / output devices,
Performs memory management and data processing.

Reference numeral 2 denotes an operation unit. An operator operates various input keys and switches to input necessary information to the CPU unit 1. Reference numeral 3 denotes a camera unit, which outputs an analog video signal of a shot golf swing or the like to a display unit 7 via a video decoder 4, a switch 5, and an on-screen display controller 6 described later.

Reference numeral 4 denotes a video decoder.
In accordance with the instruction, the analog video signal input from the camera unit 3 is converted into digital video data. Reference numeral 8 denotes an image data processing unit which temporarily stores the digital video data input from the video decoder 4 in the buffer memory unit 9 and further compresses (eg, motion JPEG) the digital video data into a main memory unit. 1
0 is stored. Further, the image data processing unit 8 reads out the digital video data after the image compression stored in the main memory unit 10 and temporarily stores the digital video data in the buffer memory unit 9, and further decompresses and outputs the digital video data.

Reference numeral 11 denotes a video encoder which converts digital video data input from the image data processing unit 8 into an analog video signal and outputs it. Reference numeral 12 denotes a video printer, which prints a still image based on an analog video signal input from the video encoder 11. Reference numeral 5 denotes a switch, which selectively switches and outputs an analog video signal input from the camera unit 3 and an analog video signal input from the video encoder in accordance with a command from the CPU unit 1.

6 is an on-screen display.
A controller (hereinafter referred to as “OSD”)
In accordance with a command from the U unit 1, video information such as necessary characters is superimposed on an analog video signal input via the switch 5 and output. Reference numeral 7 denotes a display unit that displays an image based on an analog image signal input from the OSD 6.

Next, the standby operation and the recording / reproducing operation of the video recording / reproducing apparatus according to the present invention configured as described above will be described in detail. Standby operation: When an operator turns on a power switch (not shown) included in the operation unit 2, the CPU unit 1
In accordance with the self-diagnosis program, it is determined whether or not all the function blocks operate normally. If the function blocks are normal, the standby state is set.
To be displayed.

When the CPU unit 1 enters the standby state,
By switching the switch 5, the analog video signal output from the camera unit 3 is output to the display unit 7 via the OSD 6, and the video is displayed. Recording / reproducing operation: The recording / reproducing operation includes a normal recording / reproducing operation and a divided recording / reproducing operation, and each of them will be described.

(1) Normal Recording / Reproducing Operation Prior to a golf swing, when an operator operates an operation key (not shown) included in the operating unit 2 to set a normal recording / reproducing mode, the CPU unit 1 , A normal conversion command is sent to the video decoder 4. Upon receiving the normal conversion command, the video decoder 4 converts the entire effective area of the analog video signal output from the camera unit 3 into digital video data, and outputs the digital video data to the image data processing unit 8. Also CPU
The unit 1 sends an image compression command to the image data processing unit 8.

Upon receiving the image compression command from the CPU 1, the image data processor 8 temporarily stores the digital video data input from the video decoder 4 in the buffer memory 9 and sequentially stores the stored digital video data. The image is compressed and stored in the main memory unit 10 by DMA transfer. The main memory unit 10 has a storage capacity capable of storing a maximum of 600 images of digital video data image-compressed based on the analog video signal input from the camera unit 3. When digital video data is stored in an area, the latest digital video data is always stored by overwriting the oldest digital video data with the latest digital video data.

In the case of the NTSC interlaced system, since the analog video signal input from the camera unit 3 is 60 frames per second, a moving image of up to 10 seconds is reproduced in the main memory unit 10. The digital video data of the still image required for this purpose can be stored. When the operator operates the operation keys (not shown) included in the operation unit 2 after finishing the golf swing to set the recording end mode,
The CPU section 1 terminates the image compression operation by sending a compression end command to the image data processing section 8.

Next, when the CPU 1 completes the recording operation, it immediately shifts to the reproducing operation. When the CPU 1 shifts to the reproduction operation, the CPU 1 sends the image-compressed digital video data stored in the main memory 10 to the image data processor 8 as a DM.
A transfer. The image data processing unit 8 stores the transferred digital video data in the buffer memory unit 9, sequentially expands the stored digital video data, and temporarily stores the image in the buffer memory unit 9. Then, the image data processing unit 8 stores digital video data for one screen to be displayed on the display unit 7, and then outputs the digital video data to the video encoder 11.

The video encoder 11 converts the input digital video data into an analog video signal and outputs it. The CPU unit 1 switches the switch 5 so that the analog video signal from the camera unit 3 does not flow to the OSD 6,
An analog video signal output from the video encoder 11 is input to the OSD 6, necessary character information is superimposed and output to the display unit 7, thereby displaying one still image on the display unit 7.

Also, in the case of the NTSC interlace system, by reproducing digital video data stored in the main memory unit 10 at 60 frames per second, a moving image for 10 seconds can be displayed on the display unit 7. Has become.
Further, since the CPU 1 displays the digital video data cyclically, after the latest video is displayed,
Returning to the oldest video, the moving image is displayed on the display unit 7.

When an operator operates an operation key (not shown) included in the operation unit 2 to select a desired still image in the still image display mode while displaying the moving image, the CPU The unit 1 stops displaying the moving image and displays the selected still image on the display unit 7. In this state,
When an operator operates an operation key (not shown) included in the operation unit 2 to set a still image print mode, the CPU unit 1 sends a print command to the video printer 12, and the video printer 12 Print a still image.

(2) Divided Recording / Reproducing Operation Prior to a golf swing, when an operator operates an operation key (not shown) included in the operation unit 2 to set a divided recording / reproducing mode, the CPU unit 1 , And sends a division conversion command to the video decoder 4. Upon receiving the division conversion command, the video decoder 4 converts an analog video signal output from the camera unit 3 into digital video data, and further performs a thinning process (hereinafter referred to as “scaling”) to an image size specified by the division conversion command. ) And outputs it to the image data processing unit 8. Further, the CPU unit 1 sends an image compression command to the image data processing unit 8.

FIG. 2 is an image diagram of an analog video signal and scaled digital video data. The video decoder 4 scales the analog video signal shown in FIG. 2A by thinning out pixels at a predetermined ratio in the vertical and horizontal directions while passing through a low-pass filter. Create video data. In this case, it is shown that digital video data having a size of 1/16 is created by scaling to 1/4 in the vertical and horizontal directions. Similarly, the digital video data of a quarter size is scaled down by a factor of 2 and the digital video data of a quarter size is further scaled down by a third. Data can be created.

When the image data processing unit 8 receives the image compression command from the CPU unit 1, the image data processing unit 8 temporarily stores the digital image data input from the video decoder 4 in the buffer memory unit 9, and sequentially stores the stored digital image data. The image is compressed and stored in the main memory unit 10 by DMA transfer. The main memory unit 10 stores digital video data scaled based on an analog video signal input from the camera unit 3 (in this embodiment,
(A data amount of 1/16 in the case where no scaling is performed) up to 9600 images, and the digital video data is stored in all the storage areas in the same manner as described above. The latest digital video data is always stored by overwriting the oldest digital video data with the latest digital video data.

Also, in the case of the NTSC interlace system, since the analog video signal inputted from the camera section 3 is 60 frames per second, a moving image of up to 160 seconds is reproduced in the main memory section 10. The digital video data of the still image required for this purpose can be stored. When the operator operates the operation keys (not shown) included in the operation unit 2 to set the recording end mode after finishing the golf swing, the CPU unit 1 sends a compression end command to the image data processing unit 8. This ends the image compression operation.

Upon completion of the recording operation, the CPU section 1 immediately shifts to the reproducing operation. When the CPU 1 shifts to the reproducing operation, the image-compressed digital video data stored in the main memory 10 is DMA-transferred to the image data processor 8. The image data processing unit 8 stores the transferred digital video data in the buffer memory unit 9, sequentially expands the stored digital video data, and temporarily stores the image in the buffer memory unit 9.

FIG. 3 is a conceptual diagram showing the digital video data developed in the buffer memory unit 9, and the video is displayed on the display unit 7 as shown in the image of FIG. The digital video data is D000,
D001... D959 exist as 960 still image data. First, the image data processing unit 8
As shown in (A), D000, which is the oldest digital video data, is expanded to the upper left position under the instruction of the CPU unit 1, and D00 is displayed on the right side of the image data in descending order of shooting time.
1, D002 and D003 are successively developed, but since only four still image data can be displayed at the top, the next D004 is developed at the leftmost position immediately below, and
Similarly to the above, D005, D006, and D007 are sequentially developed on the right side of the photographing time in the order of the oldest photographing time, and
The digital video data for one screen including 16 still image data up to 015 is stored. Then, the image data processing unit 8 outputs the digital video data to the video encoder 11.

The video encoder 11 converts the input digital video data into an analog video signal and outputs it. The CPU unit 1 switches the switch 5 so that the analog video signal from the camera unit 3 does not flow to the OSD 6,
An analog video signal output from the video encoder 11 is input to the OSD 6, necessary character information is superimposed and output to the display unit 7, thereby displaying one still image on the display unit 7.

Next, the image data processing unit 8
As shown in (B), under the instruction of the CPU unit 1, D00
The digital video data is sequentially moved, such as D001 at position 0, D002 at position D001, and D015.
D016 is developed at the position of, and digital video data for one screen composed of 16 still image data from D001 to D016 is stored. Then, the image data processing unit 8
Outputs the digital video data to the video encoder 11 and displays one still image in the display unit 7 in the same manner as described above.
Are displayed one after another.

In the case of the NTSC interlace system, a still image created as described above is reproduced every 1/60 second, so that a moving image of 160 seconds can be displayed on the display unit 7. it can. In this case, 6
A 16-screen moving image with a time difference of 1/0 second is divided and displayed. However, this time difference can be arbitrarily changed by operating an operation key (not shown) included in the operation unit 2.

Further, as shown in FIG. 3C, the CPU section 1 displays the digital video data cyclically, so that after the latest video (D959) is displayed, the digital video data shown in FIG. Returning to the oldest video (D000), the moving image is displayed on the display unit 7. When the operator operates an operation key (not shown) included in the operation unit 2 to select a desired still image in the still image display mode while displaying the moving image, the CPU unit 1 The moving image display is stopped, and the selected still image (for example, FIG.
(B) is displayed on the display unit 7.

Further, in this state, when the operator operates an operation key (not shown) included in the operation unit 2 to set the still image print mode, the CPU unit 1 sends a print command to the video printer 12. The video printer 12 prints a still image being displayed (for example, the still image shown in FIG. 2B).

[0035]

As described above, according to the present invention, a plurality of moving images with an arbitrary time difference are displayed on the same screen. It is possible to provide a presentation video that can be used for comparison and diagnosis of swings.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a video recording / reproducing apparatus according to the present invention.

FIG. 2 is an image diagram of an analog video signal subjected to a thinning process.

FIG. 3 is a conceptual diagram showing digital video data image-expanded in a buffer memory unit 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU part 2 Operation part 3 Camera part 4 Video decoder 7 Display part 8 Image data processing part 9 Buffer memory part 10 Main memory part 11 Video encoder 12 Video printer

Claims (6)

[Claims] 1. A series of still images that are continuously photographed are stored, and the still image data is continuously reproduced to form a moving image group including at least two moving images on the same screen. In the video recording / reproducing apparatus for simultaneously displaying, based on information relating to the photographing time of the series of still image data, the moving image reproduction is controlled so that an arbitrary time difference occurs between the moving images in the moving image group. A video recording / reproducing apparatus, comprising: reproduction control means. 2. The video recording / reproducing apparatus according to claim 1, wherein a screen dividing unit divides a display screen for displaying the moving image group into at least two or more, and reproduces each moving image in the moving image group. A playback position defining means for defining a position, wherein the playback position defining means sequentially moves the moving image to the right from the upper left display screen among the display screens divided by the screen dividing means in accordance with the chronological order. A video recording / reproducing apparatus, wherein a reproduction position of a moving image is defined so as to display each moving image in an image group. 3. The video recording / reproducing apparatus according to claim 2, wherein the reproduction position defining means defines a display position of each moving image in the moving image group, and the display screen divided by the screen dividing means. When the image reaches the rightmost one of the display images, the reproduction position of the moving image is defined so that each moving image in the moving image group is displayed on the right side in order from the leftmost display screen in the lower part of the display screen. A video recording / reproducing apparatus, 4. The video recording / reproducing apparatus according to claim 1, wherein a still image having an arbitrary time difference is generated based on all the moving images simultaneously displayed on the same screen. A video recording / reproducing apparatus, comprising: 5. The video recording / reproducing apparatus according to claim 4, further comprising: a still image display unit that displays a still image created by the still image creating unit. 6. The video recording / reproducing apparatus according to claim 4, further comprising: a still image printing unit that prints the still image created by the still image creating unit. apparatus.