JPS61290879A - Image deciding device - Google Patents

Abstract

PURPOSE:To execute quickly and easily deciding work by providing a line sensor cameral, the first and the second converting means, a storage means for storing successively picture element data by a plural picture portion, a selecting means for selecting a desired picture, a read-out means, and a display means. CONSTITUTION:The titled device is provided with a line sensor camera having a line scan image sensor for scanning and inputting along a reference line an object image of moving object passing through a prescribed reference line, the first converting means for converting successively its image output signal to the picture element data, a storage means for storing successively the picture element data of a plural picture portion, and a selecting means for selecting a desired picture from in plural pictures. Also, this device is provided with a read-out means for reading out a picture element data corresponding to the picture which has been selected by the selecting means from in the picture element data of the plural picture portion which has been written in the storage means, the second converting means for converting the read-out picture element data to a video signal, and a display means for displaying an image, based on the video signal supplied from the second converting means. In this way, at the time point when an input of the object image of the moving object has been ended, the deciding work can be executed immediately.

Description

Detailed Description of the Invention "Field of Industrial Application" This invention is applicable to video judgment used for determining the finishing order in horse races, bicycle races, boat races, auto races, etc., and for determining the shape of objects moving at high speed and reading characters. Regarding equipment.

“Prior Art” For example, slit-type cameras are widely used to determine the finishing order in horse races, bicycle races, and the like. The schematic configuration of this slit type camera is as shown in FIG.

In this figure, 1 is a lens, 2 is a slit plate having a slit 2a, and 3 is a film, which are housed in a camera case C. And goal line 4
The film 3 is arranged so that the image of the object above is formed on the film 3 through the lens l and the slit 2a, and the film 3 is attached to a moving object (in this case, a racehorse) 5 passing over the goal line 4.
By moving and rewinding the film at a speed corresponding to the movement direction of the moving object 5 and in the opposite direction to the moving direction of the moving object 5, only images of the moving object that have passed over the goal line 4 are continuously imprinted on the film 3 over time. . In this case, goal line 4
The image of the stationary object above (e.g. background) is always in slit 2a
Since it passes through the film 3 and reaches the film 3, it is imprinted in a band shape along the moving direction of the film 3, and is not imprinted as an actual shape. Here, the judge visually checks the developed film 3 and judges the order of arrival of the plurality of moving objects 5 that have passed over the goal line 4.

``Problems to be Solved by the Invention'' By the way, in horse racing, bicycle racing, etc., it is desired to quickly determine the finish order. However, in the method of determining the finish order using the slit camera described above, the slit camera is placed at the finish line.
After all the moving objects 5 have passed the goal line 4, the film 3 must be taken out from the slit camera and developed, and the developed film 3 must be placed on the line of sight M. It must be handed over to the judge as a judgment document. Therefore, after all the moving objects 5 have reached the goal, the developed film 3 that will be used as the judgment material
Even if a film 3 capable of high-speed development processing is used, a certain amount of time is required for the film to reach the hands of the judge, which has been an impediment to speeding up the judgment work. In addition, the judge has to find the part necessary for the judgment from the developed long film 3 and judge the arrival order of the moving objects 5, making the judgment work complicated.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a video judgment device that can perform judgment work quickly and easily.

"Means for Solving the Problems" The present invention provides a line sensor camera having a line scan image sensor that scans and captures an object image of a moving object passing a predetermined reference line along the reference line; a first conversion means for sequentially converting a video output signal of a line sensor camera into pixel data; a storage means for sequentially storing pixel data supplied from the first conversion means for a plurality of screens; a selection means for selecting a desired screen; a reading means for sequentially reading out pixel data corresponding to the screen selected by the selection means from pixel data for a plurality of sides written in the storage means; It is characterized by comprising a second conversion means for converting read pixel data into a video signal, and a display means for displaying an image based on the video signal supplied from the second conversion means.

"Operation" At the same time as the moving object passes the reference line, pixel data corresponding to the object image of this moving object is sequentially stored in the storage means. Furthermore, pixel data corresponding to a desired screen selected by the selection means is read out of the pixel data for a plurality of surfaces once taken into the storage means, and is displayed by the display means.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an image judgment device according to an embodiment of the present invention, and the image judgment device shown in this figure is roughly divided into a line sensor camera 6, an image storage device 7, and a control box 8. and a monitor television 9, the line sensor camera 6 is placed on a line of sight M parallel to the goal line 4, and the other image storage device 7, control box 8, and monitor television 9.
is installed in a place where it is easy for judges to make judgments, such as inside a building. The line sensor camera 6 has a lens IO and a CCD
(Charge Coupled Device;
charge-coupled device) line scan image sensor (hereinafter simply referred to as line sensor) 11 and output amplification 312
It is composed of. The line sensor 11 is composed of a photoelectric conversion section 13 having a photosensitive element for 512 pixels, and an output shift register section 14, and the goal line 4
It is arranged to scan vertically. The object image of the moving object 5 passing over the goal line 4 is formed on the photoelectric conversion unit 13 via the lens 10, and after being converted into an electrical signal in the photoelectric conversion unit 13, it is supplied from the outside. Each pixel is transferred to the output shift register section 14 in synchronization with the scan timing signal STS, and further transferred to the output shift register section 1 in synchronization with the scan timing signal STS.
4 to the output amplifier 12, and this output amplifier 12
is amplified by and output as a vertical scanning video signal vVS.

Next, in the image storage device 7, 21 is an analog vertical scanning video signal vS supplied from the line sensor camera 6.
S, 6 b corresponding to the shading (brightness) of each pixel
22 is a video memory that sequentially stores pixel data PD outputted from the A/D converter 21 under the control of a control circuit 23, which will be described later. and
It has a storage capacity capable of storing 16 frames (screens) of 6-bit pixel data PD, which is 64-gradation grayscale information for one pixel. In this case, when writing, 1 frame is 512 dots in the horizontal direction x 5 dots in the vertical direction.
It consists of 12 dots. 23 is video memory 22
The address data AD is supplied to the pixel data PD.
This is a control circuit that controls writing and reading of the data. In this case, at the time of reading, the l frame consists of 512 dots in the horizontal direction x 489 dots in the vertical direction. 24 converts the horizontal read pixel data HPD read out from the video memory 22 by the control circuit 23 into a video signal S
D/A (digital/analog) converter that converts into
25 is a video synchronization synthesis circuit that combines the video signal VS with a composite synchronization signal 5YNC and a scale signal SS and outputs a composite video signal CVS; 26 generates a composite synchronization signal 5YNC and a synchronization signal DS corresponding to this composite synchronization signal 5YNC. A synchronization signal generation circuit 27 generates a scale signal SS based on a scale setting signal SSS supplied from the control circuit 23.
28 is a timer 28a.
This is a time data generation circuit that generates elapsed time data TD based on a timer control signal TCS supplied from the control circuit 23. Also, monitor TV 9
is configured with a CRT (cathode ray tube) display device 29.

Next, the control box 8 instructs the control circuit 23 to perform various operations, and is configured as shown in FIG. 2. In this figure, 3I is a line scan time changeover switch that changes the scan speed for each line of the line sensor 11 in the line sensor camera 6, and is 2 m5ec (0.51 [Hz), 1 m5ec
(1KHz), 0.5o+5ec (2KIIz), 0.
It is possible to switch to any one of 25m5ec (4KIlz).

32 is a still switch; this still switch 32
When is pressed, the light mode is activated, and the video memory 22 stores the pixel data PD converted by the A/D converter 21.
Writing to is started. If you press the still switch 32 during this write mode, writing will be temporarily interrupted, and if you press the still switch 32 again, it will return to the write mode, and when writing for 16 frames is completed, this write mode will be canceled. Ru. This still switch 32 is provided with display lamps 32a and 32b.The display lamp 32a is lit during the light mode, and the display lamp 32b is lit during the light mode, and the display lamp 32b is lit during the light mode. It lights up during the period when data PD is being written. During this light mode period, other switch on/off operations are disabled. Reference numeral 33 denotes an indicator lamp that indicates that a still signal changeover switch (not shown) has been switched to the external side. When lit, the light mode is switched on by an external still signal ESS supplied from the outside in place of the still switch 32 described above. Become. 'F=, Ft・
...F Ill is a screen selection switch for selecting an arbitrary screen to be displayed on the display screen of the monitor television 9 from among the plurality of screens temporarily stored in the video memory 22;
+, Lt...Lll+ are screen display lamps that display the number of the screen that is being written or read.

34 is a select mode switch, and this switch 3
When 4 is pressed and turned on, the select mode is entered and the display lamp 34a lights up. In this select mode, it is possible to select a screen using the screen selection switches F1 to Fill. In this case, when the above-mentioned still switch 32 is pressed to enter the light mode, the mode is automatically initialized to the select mode. 35 is a scroll mode switch, and when this switch 35 is pressed and turned on, the scroll mode is entered and the display lamp 35a lights up. In this scroll mode, scrolling is possible from the screen selected by the screen selection switch FI-F18. in this case,
After the switch 35 is turned on and the scroll mode is entered, the on/off operation of the screen selection switch F l-F +8 is disabled, and the screen cannot be selected. 36 and 37 are scroll direction designation switches that designate the direction of scrolling, and when the scroll direction designation switch 36 is pressed, the display lamp 36
a lights up and the screen movement direction is specified to the right, and when the scroll direction designation switch 37 is pressed, the display lamp 37a lights up and the screen movement direction is specified to the left. Reference numeral 38 denotes a scroll/VTr (switch) that instructs to start or stop these operations in the scroll mode and the VTR (video tape recorder) recording mode, which will be described later. When this switch 38 is pressed and turned on, the display lamp 38a lights up.Then, when you press the scroll direction designation switch 36 or 37 and then press the scroll/VTR switch 38, the screen moves in the specified direction and is displayed on the display screen of the monitor television 9.This screen The moving speed is set by the scroll speed setting volume 39. 40 is a VTR mode switch, and when this switch 40 is pressed and turned on, the VTR recording mode is entered, and the display lamp 40
a lights up. And scroll/VTR switch 3
8 is pressed and turned on, the screen automatically scrolls sequentially from the first screen corresponding to the screen selection switch F1 at the movement speed set by the scroll speed setting volume 39, and this scrolling After finishing,
The screen remains blank for a predetermined period of time, the display lamp 38a goes out, and one cycle of the VTR recording mode ends. This VTR recording mode! During the cycle period, the on/off operation of the scroll/VTR switch 38 is disabled. Furthermore, in this VTR recording mode, if the composite video signal CVS output from the image storage device 7 is supplied to the video signal input terminal of the VTR, the above-mentioned scroll screen will be recorded on the VTR. 41 is a time start switch, and when this switch 41 is pressed and turned on, the timer 28a in the time data generation circuit 28 starts timing operation, and the time data generation circuit 28 starts measuring time every 1000 seconds. The time data TD is supplied to the elapsed time indicator 42 of the control box 8 and the A/D converter 21, and the display lamp 41a lights up while the timer 28a is in the timing operation. 43 is a time on/off switch, and when this switch 43 is pressed and turned on, the display lamp 43a lights up, and in the light mode, the elapsed time data TD output from the time data generation circuit 28 is displayed on the A/D. In the converter 21, pixel data P
D and written into the video memory 22.

44 is a time reset switch, and this switch 4
When 4 is pressed, the timer 28a is reset.

45 is an indicator lamp that indicates that the time start signal changeover switch (not shown) has been switched to the external side;
While the light is on, the timer 28a starts timing operation by an external time start signal ETS supplied from the outside in place of the flat time start switch 41. The time counting operation of the timer 28a stops when the write mode ends. 46 is a video out scale on/off switch, and when this switch 46 is pressed and turned on, the display lamp 46a lights up, and the scale signal SS generated by the scale signal generation circuit 27 is output to the video synchronization synthesis circuit 25. It is superimposed on the signal VS, and a vertical video scale line is displayed on the display screen of the monitor television 9. In this case, a setting value set by the video scale position setting volume 47 and corresponding to the horizontal position of the scale line, and a setting value corresponding to the number of scale lines set by the video scale line number setting volume 48 are used for the scale setting. The signal SSS is supplied to the scale signal generation circuit 27 via the control circuit 23. 49 is video out position/
This is a negative changeover switch, and when this switch 49 is pressed and the indicator lamp 49a is lit, the control circuit 23
The inverted signal IS is supplied to the video synchronous synthesis circuit 25 via the video synchronous synthesis circuit 25, where the composite video signal CvS is inverted and a negative screen is displayed on the display screen of the monitor television 9. When the switch 49 is pressed again, the display lamp 49a goes out and the normal positive screen is displayed.

Reference numeral 50 denotes a video erase switch, and when this switch 50 is pressed and turned on, the display lamp °50a lights up, and the erase signal ES is supplied to the video synchronization synthesis circuit 25 via the control circuit 23, and this video synchronization synthesis is performed. circuit 2
5, the composite video signal CVS is made into a blank signal. A video signal level meter 51 displays the peak value of the vertical scanning video signal VvS output from the line sensor camera 6, and is used when setting the aperture value of the lens lO of the line sensor camera 6. 52 is a right/left changeover switch, and the moving object 5 is a line sensor camera 6.
If you want to move the front of the camera from right to left, set it to the right side, and if you want to move it in front of it from right to left, set it to the left side. As a result, the order in which addresses are specified when writing pixel data PD to the video memory 22 is changed, and the moving object image is displayed on the display screen of the monitor television 9 in the same direction as the moving direction of the actual moving object 5. .

Next, a procedure for determining the finishing order of a horse race using the video determining device configured as described above will be described.

First, the line scan time changeover switch 31 is operated to set the scan speed of the line sensor 11 according to the approximate movement speed of the racehorse (moving object 5). This is compared to the moving speed of the racehorse.
If the scanning speed of This is because an object image that has shrunk in the direction is written into the video memory 22. Next, the line sensor camera 6 photographs the white object, and the level meter 5
The aperture value of the line sensor camera 6 is adjusted so that the pointer 1 does not exceed a predetermined value, and the line sensor camera 6 is placed on the line of sight M of the goal line 4. Further, the right/left selector switch 52 is switched depending on the direction of movement of the racehorse, and the time on/off switch 43 is turned on when it is desired to capture the elapsed time since the horse race started along with the object image. Also, confirm that the display lamps 33 and 45 are turned off and that the still signal changeover switch and the time start signal changeover switch are not switched to the external side.

Next, when the racehorse starts, the time start switch 41 is turned on. As a result, the elapsed time since the start is sequentially displayed on the elapsed time display 42 in units of 1710 seconds. Then, just before the leading racehorse passes the finish line 4, the still switch 32 is turned on. As a result, the light mode is set, and the vertical scanning video signal vvS supplied from the line sensor camera 6 is
The pixel data PD is converted into pixel data PD by the /D converter 21, and this pixel data PD is sequentially written into the video memory 22. In this case, the pixel data PD converted by the A/D converter 21 is stored in the video memory 2 as shown in FIG.
Screen selection switch F in 2.

from the first storage area A1 corresponding to the arrow V direction (
vertically). Then, when the pixel data PD is written up to the 16th storage area Age corresponding to the screen selection switch F18 in the video memory 22, the write mode is canceled. At this time, if the time on/off switch 43 is turned on, a time display reference line TSL, a time display T indicating the elapsed time from the start of the horse race to this time display reference line TSL,
1/10 seconds from the time display reference line TSL (1/100 seconds if the scan speed is 0.25m5ec)
Each time the time elapses, a time display line TL indicating this time is written into the video memory 22 together with the object image.

Next, after the race is over, the judge selects the screen selection switch Fl.
-F1. Select and press the screen selection switch F+-Fz+ corresponding to the desired screen from among them to display the desired screen on the display screen of the monitor television 9 and determine the order of arrival. In this case, for example, when screen selection switch F is selected, the third
As shown in the figure, from the first storage area A in the video memory 22, 512 dots in the horizontal direction x 489 dots in the vertical direction
Pixel data PD for a dot is read out in the direction of arrow H (horizontal direction) and supplied to the D/A converter 24 as horizontal read pixel data HPD. Next, the horizontal read pixel data HPD is converted into a video signal vS in the D/A converter 24.
This video signal vS is sent to the video synchronization synthesis circuit 25.
The composite video signal CVS is then supplied to the monitor television 9. As a result, the first screen corresponding to the screen selection switch F is displayed on the display screen of the monitor television 9.

Also, after pressing the scroll mode switch 35 to set the scroll mode, press the desired screen selection switch F, ~F'.
Pressing ta enables scrolling from the selected screen, then specifying the scrolling direction with the scroll direction designation switch 36 or 37, and pressing the scroll/VTR switch 38 allows scrolling in the specified direction and scrolling speed. The screen scrolls at the moving speed set by the setting volume 39. It is also possible to determine the order of arrival while looking at this scroll screen.

According to the embodiment described above, after all the racehorses have crossed the finish line, the finishing order can be immediately determined on the display screen of the monitor television 9. In addition, for example, the racehorse that crossed the finish line first can The desired screen can be selected from the screen showing the race horse that finished last to the screen showing the race horse that finished the race and displayed on the display screen of the monitor television 9, making the judgment work quick and easy. It is possible to do so.

"Effects of the Invention" As explained above, according to the present invention, a line sensor camera includes a line scan image sensor that scans and captures an object image of a moving object passing a predetermined reference line along the reference line. a first conversion means for sequentially converting the video output signal of the line sensor camera into pixel data; and a storage means for sequentially storing pixel data for a plurality of both sides.
a selection means for selecting a desired screen from among the plurality of screens; and a reading means for reading out pixel data corresponding to the screen selected by the selection means from pixel data for a plurality of sides written in the storage means. , a second converting means for converting the pixel data read out by the reading means into a video signal, and a display means for displaying an image based on the video signal supplied from the second converting means. , it is possible to perform the judgment work immediately after capturing the object image of the moving object, and it is also possible to select and display the desired screen from among multiple screens, thus making the judgment work quick and easy. The effect can be achieved easily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a plan view showing the external configuration of the control box 8 in the same embodiment, FIG. 3 is a diagram for explaining an image displayed on the monitor television 9 in the same embodiment, and FIG.
The figure is a schematic configuration diagram showing the configuration of a conventional slit type camera. 4...Goal line (reference line), 5...
・Moving object, 6... Line sensor camera, 7.
... Image storage device, 8 ... Control box, 9 ... Monitor television (display means),
11...CCD line scan image sensor, 21...A/D converter (first conversion means), 22...video memory (storage means), 2
3... Control circuit, 24... D/A converter (second conversion means), F, ~Fra...
Screen selection switch (selection means). Applicant Yamaguchi Cinema Co., Ltd., Yoi-11-1,6-A

Claims (1)

[Claims] A line sensor camera having a line scan image sensor that scans and captures an object image of a moving object passing a predetermined reference line along the reference line; and a line sensor camera that sequentially converts the video output signal of the line sensor camera into pixel data. a first conversion means; a storage means for sequentially storing pixel data for a plurality of screens supplied from the first conversion means; a selection means for selecting a desired screen from the plurality of screens; a readout unit that sequentially reads out pixel data corresponding to the screen selected by the selection unit from among the written pixel data for a plurality of screens; and a second unit that converts the pixel data read out by the readout unit into a video signal. 1. A video determination device comprising: a converting means; and a display means for displaying an image based on a video signal supplied from the second converting means.