JP2779993B2 - Method for detecting remaining pins in computer bowling - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of detecting remaining pins in a computer bowling, and more particularly to a method of detecting remaining pins in a computer bowling which can reliably detect a remaining pin deviating from a proper position to prevent erroneous determination of strike or spare. It relates to the detection method.

[0002]

2. Description of the Related Art In computer bowling, it is necessary to detect remaining pins after pitching in order to perform scoring automatically, and the following remaining pin detection method is generally used.

[0003] That is, the pins after pitching are imaged from obliquely above by a CCD camera or the like installed on the lane, and among the image data obtained by this, each pin in the case where all pins are standing at the normal position. Based on the image data within the image processing range set at the top of the pin image, the image processing means determines the presence or absence of remaining pins standing at the normal position of each pin, thereby detecting the number and position of remaining pins. ing.

[0004]

If the above-described remaining pin detection method is adopted, it is theoretically possible to score reliably. However, in actual bowling, the remaining pins are shifted from the regular set position after the pitch. In some cases, there is a deviation, and when the deviation is large, it is out of the image processing range and the remaining pins cannot be detected.

[0005] For this reason, there is a case where a strike or a spare is erroneously determined in spite of the fact that the strike or spare is not actually performed. In particular, in the case of a strike or a spare, the score of the next frame is added. Has a very large effect on the score.

In the case of the first shot, the pin setter pie descends to grasp and lift the remaining pins in order to remove the fallen pins by the sweeper. Since the pie abuts on the remaining pin and cannot descend to the predetermined position, the player enters the second throw with the fallen pin remaining on the lane. Therefore, the information that the pie cannot be lowered can be used for detecting the remaining pin that is displaced.

However, since it is determined whether or not there is a remaining pin that has been displaced only after the pie has dropped, there is a considerable time delay compared to the automatic scoring, during which time the volatilizer etc. arbitrarily corrects the score. Inconvenience occurs.

In the case of the second shot, the sweeper immediately removes the pin that has fallen over and the remaining pin and shifts to the next frame. Therefore, it is impossible to detect the remaining pin that is displaced by the above method, and the spare Misjudgment cannot be prevented.

In addition, if a strike or a spare occurs in 10 frames, the ball can be thrown three times. In other cases, the ball can be thrown only twice, and the game proceeds to the next game as it is. In addition, there is also a problem that a difference between the score and the actual game occurs when a strike or an erroneous determination of a spare occurs.

An object of the present invention is to provide a remaining pin detection method capable of reliably detecting a remaining pin that has been displaced in order to prevent strikes and erroneous determination of spares that greatly affect the score.

[0011]

Means for Solving the Problems] To solve the above problems, the present invention is a pin on the lane after pitching, a first step of imaging from diagonally above over the entire width of the lane by the imaging means, the second In the image data obtained by the step 1 , based on image data within an image processing range individually set above each pin image when all pins are standing at the normal position, The remaining pins standing at the position are individually detected, and the remaining pins are detected here.
When a pin is detected, the number of remaining pins
The second step of performing the alling and the second step
In the case where no remaining pins are detected in the image data, the image data within the image processing range set over the entire width of the lane in the area including all the pin images that are upright and not including the pin image that has fallen out of the image data. Based on the detection of the presence or absence of a remaining pin standing at any position on the lane ,
Here, when it is detected that the remaining pin is present, the remaining pin is uniformly set to one.
While the remaining pins are detected as no
Scoring according to strike or spare
And a third step of detecting the remaining pins in computer bowling.

[0012]

When the remaining pins standing at any position on the lane are detected in a state where the remaining pins standing at the regular position on the lane are not detected, that is, in a state where it can be determined that the pin is a strike or a spare. , The presence of a remaining pin that is displaced from the normal position can be recognized, and the score is corrected accordingly.

[0013]

Embodiments will be described below with reference to the drawings.

As shown in FIG. 1, in computer bowling, a scoring computer 11 is provided for each lane.
Are installed, and each scoring computer 11 is connected to a front computer 12 by a communication line.

The scoring computer 11 calculates a score for each frame according to the progress of the game,
It has a function to output the result to the CRT 17 installed for each lane and to the front computer 12.

Accordingly, the scoring computer 11 includes, as various information necessary for calculating the score, a tweezer signal from the pin setter 13 for setting the pin 14 at a predetermined position in the lane, and a ball passage sensor installed immediately before the tweezer position. A ball passing signal from the camera 16 and image data from a CCD camera 15 which captures the state of a pin after pitching, which is installed for each lane, from obliquely above are input.

As shown in FIG. 2, the operation of each frame is performed by first setting ten pins 14 by the pin setter.
Is set at a predetermined position on the lane (step S1)
Along with the information from the scoring computer 11
And waits for the first pitch. When the bowler pitches the first pitch (step S2), the ball is detected by the ball passing sensor 16, a ball passing signal is output to the scoring computer 11, and the pin state after the pitch is set by the CCD camera 15. The image data is taken and the scoring computer 1
1 and the scoring computer 11 performs the first scoring based on the various information (step S3).

In the next step S4, the pinsetter 1
3 falls, and when it is determined that there is no remaining pin, that is, when it is determined that there is a strike, the falling pin 14 is removed by the sweeper (step S8), and the process proceeds to the next frame.

On the other hand, if it is determined that there is a remaining pin, the pie grasps the remaining pin and lifts it up, and at the same time, the sweeper removes the falling pin 14 and the remaining pin 14 is set again at a predetermined position on the lane ( Step S5), and waits for the second pitch. Also at this time, a tweezers signal is output to the scoring computer 11 as in the case of the first throw.

Here, when the bowler pitches the second pitch (step S6), the ball passing signal and the image data of the pin state after the pitch are output to the scoring computer 11 as in the first pitch, and the two pitches are output. Eye scoring is performed (step S7).

Then, the falling pin and the remaining pin are immediately removed by the sweeper (step S8), and the process shifts to the next frame.

In the case of strikes or spares for the 10 frames, the third pitch can be pitched. However, there is no difference in that scoring is performed after each pitch. Is omitted.

Next, the scoring performed in steps S3 and S7 will be described in detail with reference to FIG.

First, the state of the pin after the pitch is determined by the CCD camera 1.
5 (step S11), and the obtained image data is input to the scoring computer 11.

The scoring computer 11 performs image processing based on each image data within the separately set image processing range among the image data to detect the number of remaining pins at the normal position (step S12). The detection of the presence or absence of the remaining pin on the lane (step S13) is performed in parallel.

Here, the image processing range 22 used for detecting the remaining pin at the normal position is represented by a two-dot chain line in FIG.
The coordinates are set at the top of each pin image 21 (portion indicated by a broken line) when all 10 pins are standing at the normal positions, and the three coordinate positions set for each pin within the range By binarizing the luminance data of the pixel at 23 (indicated by a cross in the figure), it is determined whether or not a pin is standing at that position.

On the other hand, the image processing range 24 used for detecting the remaining pins on the lane includes, as shown by the chain line in FIG. Is set over the entire width of the lane, and within this range, the brightness of the pixel at the coordinate position 25 (shown by a circle in the figure) set on a straight line at regular intervals from one side of the lane to the other side By binarizing the data, it is determined whether a pin is standing on the lane. Therefore, the coordinate interval is defined on one pin image as
It is necessary to set the interval shorter than the narrowest part.

As described above, since the image processing is not performed on all the image data within the predetermined image processing range but is performed only on the specific coordinate position within the predetermined range, the processing time is short, and Thus, the remaining pin detection can be performed.

Then, in the next step S14, it is confirmed whether or not the remaining pin is detected at the normal position in the step S12, and if it is detected, the remaining pin number n is scored (step S16). .

On the other hand, if no remaining pin is detected at the normal position in step S12, it means a strike or spare for the time being.
Then, it is confirmed whether or not the remaining pin is detected on the lane in the step S13.

Here, when no remaining pins are detected, it is found that all pins on the lane have fallen over without fail, and the first shot becomes a strike and the second shot becomes a spare. Scoring is performed (step S17).

On the other hand, if a remaining pin is detected in step S15, it is considered that the remaining pin is standing up in a state of being displaced from the normal position.
(Step S18). If this is the first shot, marking is performed on the score of the second shot to indicate that the remaining pins have been displaced.

It should be noted that whether the scoring performed is for the first shot or for the second shot is determined.
This is performed by the tweezers signal and the ball passing signal.

[0034]

As described above, according to the present invention, not only the number of remaining pins standing at the regular position but also the number In addition, since the presence or absence of the remaining pin standing at any position on the lane is detected, the detection of the remaining pin which is displaced can be performed in a short time. Spare misjudgment of spares can be reliably prevented. That is, the second step
When the remaining pins standing at the correct position of each pin are detected
Score the number of remaining pins
If not, in the next third step the lane
Detects the presence or absence of remaining pins standing at any of the positions above
And scoring, stand up in the correct position
If any remaining pins are detected,
Ordinary computer bowling to score numbers
While the same processing as that of the
If no remaining pin is detected, the next third
Check that there is a remaining pin
Is detected, so not only strikes but
It is possible to surely prevent possible misjudgment of spares.
Heterogeneous and distinctive effects can be obtained. Also,
In the third step, the image data obtained in the first step is obtained.
Standing somewhere on the lane based on the data
The presence of remaining pins is detected.
In the case where the score is
On the other hand, if no remaining pin is detected,
Because scoring is performed according to
And the third step itself can be performed in a short time.
Become.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a computer bowling system for implementing a remaining pin detection method according to the present invention.

FIG. 2 is a flowchart showing an operation during a frame.

FIG. 3 is a flowchart illustrating a scoring method.

FIG. 4 is a diagram showing an image processing range and image processing points.

[Explanation of symbols]

 11 Scoring computer 12 Front computer 13 Pin setter 14 Pin 15 CCD camera 16 Ball passage sensor 17 CRT 21, 26, 27 Pin image 22, 24 Image processing range 23, 25 Coordinate position

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A63D 5/04

Claims (1)

(57) [Claims] 1. A first step in which pins on a lane after pitching are imaged from obliquely above the entire width of the lane by an imaging means, and all pins of image data obtained in the first step are Based on the image data within the image processing range individually set at the top of each pin image when standing at the regular position, the remaining pins standing at the regular position of each pin are individually detected, and the remaining pins are detected here. If it is detected,
A second step of scoring the number of remaining pins
And no remaining pin is detected in the second step.
In the image data, in an area that does not include the pin image that has fallen down and that includes all the pin images that stand up, based on image data within the image processing range that is set over the entire width of the lane, The presence or absence of a remaining pin standing at the position is detected, and the presence of the remaining pin is detected here.
Scoring with the remaining pin as 1
On the other hand, if no remaining pin is detected,
And a third step of performing scoring according to (a) . A method of detecting remaining pins in computer bowling.