JPS61290880A - Image deciding device - Google Patents

Abstract

PURPOSE:To execute quickly deciding work, and also to cope immediately with a moving object whose moving speed is different, by providing a line sensor camera, a scanning speed switching means, the first and the second converting means, a storage means, a selecting means, 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, a scanning speed switching means for switching a scanning speed of the line scan sensor, the first converting means for converting successively an image output signal of the line sensor camera to 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 the plural pictures. Also, this device is provided with a read-out means for reading out a picture element data corresponding to the picture selected 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, the deciding work can be executed quickly, and also it is possible to cope immediately with a moving object whose moving speed is different.

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 3 having a slit 2a, and these 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 rewinding the film while moving at a speed corresponding to , and in a direction opposite 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 onto 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 will be released.
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, in the slit type camera mentioned above,
The moving speed of the film 3 must be set according to the moving speed of the moving object 5. For example, if the moving speed of the film 3 is too fast compared to the moving speed of the moving object 5, an object image extending in the horizontal direction (movement direction of the film 3) than the actual object image of the moving object 5 appears on the film 3. Imprinted, on the contrary,
If the moving speed of the film 3 is too slow, a horizontally contracted object image will be imprinted on the film 3. Therefore,
For example, if you want to use a slit camera that has been used to determine the finish order in horse races to determine the finish order in bicycle races, the moving speed of the film 3 must be changed, and therefore, the moving speed of the film 3 must be changed. It was not possible to respond immediately to the object 5, and it lacked versatility.

This invention has been made in view of the above-mentioned circumstances, and provides a highly versatile video judgment device that can perform judgment work quickly and can immediately respond to moving objects with different moving speeds. It is intended to.

"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; scanning speed switching means for switching the scanning speed of the line scan image sensor; first conversion means for sequentially converting the video output signal of the line sensor camera into pixel data; and a memory for sequentially storing pixel data for a plurality of screens.
means, selection means for selecting a desired screen from the plurality of screens, and pixel data corresponding to the screen selected by the selection means from among the pixel data for the plurality of screens written in the storage means. a readout means for reading, a second conversion means for converting the pixel data read by the readout means into a video signal, and a display means for displaying an image based on the video signal supplied from the second conversion means; It is characterized by having the following.

"Operation" At the same time as the moving object passes the reference line, pixel data corresponding to the object image of the moving object is sequentially stored in the storage means at a scanning speed corresponding to the moving speed of the moving object. Furthermore, pixel data corresponding to a desired screen selected by the selection means is read out of the pixel data for a plurality of screens once taken into the storage means, and 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) It is composed of a line scan image sensor (hereinafter simply referred to as a line sensor) 11 and an output amplifier r2. Line sensor 1! is composed of a photoelectric conversion section 13 having a photosensitive element for 512 pixels, and an output shift register section 14, and is arranged so as to vertically scan the goal line 4. Then, the object image of the moving object 5 passing on the goal line 4 is formed on the photoelectric conversion unit 13 via the lens lO.
After being converted into an electrical signal in step 3, it is transferred to the output shift register section 14 for each pixel in synchronization with the scanning timing signal STS supplied from the outside, and then transferred to the output shift register section 14 in synchronization with the scanning timing signal STS. Part 14
The signal is output from the output amplifier 12, amplified by the output amplifier 12, 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-level 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 and 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 vS.
D/A (digital/analog) converter that converts into
Reference numeral 25 denotes a video synchronization synthesis circuit which combines the video signal vS with a composite synchronization signal 5YNC and a scale signal SS and outputs a composite video signal CVS, and 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 TC9 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, 31 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;
c (lKHz), 0.5asec (2KHz), 0.2
It is possible to switch to any one of 5m5ec (4KHz).

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 the data PD is being written.During this write mode, on/off operations of other switches are disabled.33 is a still image (not shown). This is an indicator lamp that indicates that the signal changeover switch has been switched to the external side, and when it is lit, it enters the light mode by the external still signal ESS supplied from the outside instead of the still switch 32 described above.
,...F+a is a screen selection switch for selecting an arbitrary screen to be displayed on the display screen of the monitor television 9 from among a plurality of screens temporarily stored in the video memory 22;
,, L ffi...L, @ is a screen display lamp that displays the number of the screen that is being written or read. 3
4 is a select mode switch, and this switch 34
When is pressed and turned on, the select mode is entered and the display lamp 34a lights up. During this selection mode, the screen selection switches F1 to F. The screen can be selected by 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 switches F1 to F+e. In this case, after the switch 35 is turned on and the scroll mode is entered, the on/off operations of the screen selection switches F1 to F+a are disabled and screens cannot be selected. 36 and 37 are scroll direction designation switches that designate the direction of scrolling; when the scroll direction designation switch 36 is pressed, the display lamp 36a lights up and the screen movement direction is designated to the right; When 37 is pressed, the display lamp 37a
lights up and the direction of screen movement is specified to the left. 38
is a scroll/VTR switch that instructs to start or stop these operations in scroll mode and VTR (video tape recorder) recording mode, which will be described later. When this switch 38 is pressed and turned on, a display lamp 38a lights up. do. Then, press the scroll direction designation switch 36 or 37, and then press the scroll/VT
When the R switch 38 is pressed, the screen is displayed on the display screen of the monitor television 9 while moving in the designated direction. The moving speed of this screen is set by the scroll speed setting volume 3.
Set by 9. 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 40a lights up. When the scroll/VTR switch 38 is pressed and turned on, the screen selection switch F is moved at the moving speed set by the scroll speed setting volume 39.
The screen automatically scrolls sequentially from the first screen corresponding to 1, and after this scrolling is completed, the screen becomes blank for a predetermined period of time, the display lamp 38a turns off, and the VTR
One cycle of recording mode ends. During the 1 cycle period of this VTR recording mode, the scroll/V
The ON/OFF operation of the TR switch 38 is disabled. Also, in this VTR recording mode, the composite video signal CV output from the image storage device 7
If S is supplied to the video signal input terminal of ■, TI (), the scroll screen mentioned above will be recorded on the VTR. 41 is a time start switch, and this switch 41 is pressed and turned on. At this point, the timer 28a in the time data generation circuit 2B starts a timing operation, and the elapsed time data TD is sent from the time data generation circuit 28 to the elapsed time display 42 of the control box 8 and the A/IQ second unit. are respectively supplied to the D converter 21,
Further, while the timer 28a is in the timing operation, the display lamp 41a lights up. 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. 4
4 is a time reset switch, and this switch 44
When is pressed, the timer 28a is reset.

Reference numeral 45 is a display panel that indicates that the time start signal changeover switch (not shown) has been switched to the external side;
While the light is on, an external time start signal ETS is supplied from the outside instead of the time start switch 41 described above.
Accordingly, the timer 28a starts timing operation. 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 generation circuit 2
The scale signal SS generated by 7 is superimposed on the video signal VS by the video synchronization synthesis circuit 25, 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 a video out positive/negative changeover switch, and when this switch 49 is pressed and the indicator lamp 49a is lit, an inversion signal is sent via the control circuit 23! S is supplied to the video synchronization 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 allot 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 circuit At step 25, 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 VS output from the line sensor camera 6, and is used when setting the aperture value of the lens 10 of the line sensor camera 6. 5
2 is a right/left changeover switch, which is set to the right side when the moving object 5 moves in front of the line sensor camera 6 from right to left; otherwise, it is set 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). Next, take a picture of the white object with the line sensor camera 6, adjust the aperture value of the line sensor camera 6 so that the pointer on the level meter 5 does not exceed a predetermined value, and use the line sensor camera 6 to view the goal line 4. Place it on line M.

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 1/10 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 ■vS supplied from the line sensor camera 6 becomes A.
/D converter 2! The pixel data PD is converted into pixel data PD, and this pixel data PD is sequentially written into the video memory 22. In this case, as shown in FIG. direction). Then, when the pixel and elementary data PD are written up to the 16th storage area A+a corresponding to the 16th screen pHl of the video memory 22, the write mode is canceled. At this time, if the time on/off switch 43 is turned on, the time display reference line TSL, the time display T indicating the elapsed time from the start of the horse race to this time display reference line TSL, and the time display A time display line TL that indicates this every time 1/10 seconds (however, 17100 seconds if the scan speed is 0.251+15ec) elapses from the reference line TSL.
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 F1.
~F. Select and press the screen selection switch F+-F+* 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. Also, after pressing the scroll mode switch 35 to enter the scroll mode, press the desired screen selection switch F, ~F, etc.

When you press , scrolling is enabled from the screen selected by the screen selection switch Fl"-Fl@, and then when you specify the scroll direction using the scroll direction designation switch 36 or 37 and press the scroll/VTR switch 38, , the screen scrolls in the designated direction and at the moving speed set by the scroll speed 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. In addition, after using it for determining the finishing order in horse racing, if you want to judge the finishing order in bicycle racing, for example, you only need to change the scan speed of the line sensor 11 as appropriate with the line scan time changeover switch 31. It is also possible to respond immediately when determining the order of finish in a race or the like.

"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 scanning speed switching means for switching the scanning speed of the line scan image sensor; a first converting means for sequentially converting the video output signal of the line sensor camera into pixel data; and a first converting means for sequentially storing pixel data for a plurality of screens. storage means, selection means for selecting a desired screen from the plurality of screens, and pixel data corresponding to the screen selected by the selection means from among the pixel data for the plurality of screens written in the storage means. a readout means for reading, a second conversion means for converting the pixel data read by the readout means into a video signal, and a display means for displaying an image based on the video signal supplied from the second conversion means; Since this is provided, it is possible to perform the determination work quickly, and it is possible to achieve the effect of improving the versatility of moving at different moving speeds.

[Brief explanation of drawings]

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), 31...Line scan time changeover switch (scanning speed changeover means),
F, ~F18...Screen selection switch (selection means).

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 scanning speed switching means for switching the scanning speed of the line scan image sensor. , a first conversion means for sequentially converting the video output signal of the line sensor camera into pixel data, a storage means for sequentially storing pixel data for a plurality of screens, and a selection for selecting a desired screen from the plurality of screens. means, reading means for sequentially reading out pixel data corresponding to the screen selected by the selection means from among the pixel data for a plurality of screens written in the storage means, and pixel data read out by the reading means; A video determination device comprising: second conversion means for converting into a video signal; and display means for displaying an image based on the video signal supplied from the second conversion means.