JPS6121777A - Fish-body picture inputting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to the input of images in automatic fish dorsal and ventral one-tail recognition processing, and in particular inputs the posture of a fish moving at high speed as a still image. Regarding equipment.

(B) Conventional technology Regarding devices for processing input fish body images, there has already been a fish processing system (Japanese Patent Application No. 57-229480), a fish direction identification device (Japanese Patent Application No. 57-1'04745), and a fish body dorsal and ventral identification system. A circuit (Japanese Patent Application No. 57-167380) has been proposed.

However, in any of these devices, (al
Regarding the input of the fish body image, in order to prevent image blurring of the photoelectric conversion unit, the fish body is stopped once, positioned, the photoelectric conversion unit image is captured, and then the fish body is started again (bl). Even if photoelectric conversion is performed, there is no notice regarding means for preventing image blurring or specific means for detecting when a fish has arrived within the imaging range.

(c) Problems to be solved by the invention Related to item ta1 above, if the fish body is stopped once and then started running again after capturing the image, it takes time to start and stop the fish body, and the processing sequence per time is The number decreases.

In other words, high-speed processing cannot be expected.

Regarding fb1 above, even if you capture images while the fish is moving, the fish will continue to move forward while recognizing the fish's posture and setting the selection gates, so photoelectric conversion will occur. An idle interval between the fish and the gates installed afterwards is required, resulting in an increase in the size of the device.

The present invention solves the problems of the apparatus shown in the above-mentioned prior application.

(d) Means for solving the problem To this end, the present invention provides a fish body image input device for obtaining individual fish body images of supplied fish, in which each fish is separated and fed to a fish body imaging position. a detection means for detecting the presence of a fish at the fish imaging position; a light emitting means for emitting light toward the fish imaging position based on the output of the detection means; means for photoelectrically converting an image obtained by performing an imaging operation on the fish; a means for cleaning the fish body imaging position; and a means for intermittently discharging the fish at the fish body imaging position created subsequent to the photoelectric conversion means. It is characterized by having an intermittent feeding means.

(e) Effect According to the present invention, the following effects are achieved.

(i) Since the fish are fed into the tray by means of separating the fish one by one, when capturing images of the fish with a TV camera, there is no overlap between the fish, and the image of the ray (background) is placed around the fish. will surely come. In other words, the illuminated image exists within the tray image, making it easier to distinguish between the background and the illuminated image.

Therefore, patent application No. 57-229480. Special application 1987-
104745. Patent application 1987-167380, patent application 1982
Even if the recognition processing method described in -32930 is used, the fish body can be easily extracted from the background.

(ii) A still image without image blur can be obtained while the fish is running by using the light projecting means with a short light emission time and the means for detecting the arrival of the fish, and the apparatus becomes simple without requiring a mechanism for starting and stopping the fish. Furthermore, since there is no mechanism to start or stop the camera, the images captured by the TV camera are clear and concise, making it easy to pick out the highlights even with good sense.

(iii) Means for supplying water to the trays to clean the trays and facilitate the movement of the fish. The background of images captured by a TV camera will be less dirty.

Embodiment FIG. 1 shows an embodiment of the fish body image input device of the present invention.

1 is a vibration trough. It is supported by plate springs 2, and when the eccentric crank 3 rotates, the vibration trough 1 reciprocates left and right. The vibrating trough I has 4, and the punching handle 4 has a lattice with the burr side facing up.

When the vibrating trough 1 moves back and forth, the fish 5 and the punching plate 4
Due to the frictional force between the fish and the rabbit, the fish 5 moves only in the rabbit's direction (to the right in this figure). Since the direction of the fish is directional, the fish does not move in the direction of its tail.

8 is a spike drum having a plurality of pins 8-1 raised on its circumferential surface. 9 is way 1-roller, and shaft 9-
It is supported by 1.

The size of the hole 9-2 in the weight roller 9 is larger than the outer diameter of the shaft 9-1, so when the weight roller 9 is pushed from below with a force greater than its own weight, the weight roller 9 closes in the hole 9-2. It can be lifted up to a distance corresponding to the gap between the shaft 9-1 and the shaft 9-1. 10 is a plate. As shown in FIG. 2, the receiver has a groove 10-1 cut into the center of the plate 10, and when the spike drum 8 rotates, the pin 8-1 moves between the grooves 10-1. The pin 8-1 is arranged so that the receiver protrudes above the bottom of the plate 10.

Figures 3 and 4 show the feeding of one fish 5. As shown in FIG. 3, when the weight roller 9 is lowered by its own weight, the distance between the weight roller 9 and the tray 10 is set to be smaller than the thickness of the fish 5. The fish 5 fed from the vibrating trough 1 are caught between the tray 10 and the weight roller 9 and cannot move forward.

As shown in FIG. 4, the spike drum 8 rotates and the pin 8-
When fish 1 is near the top, pin 8-1 hooks the crocodile of fish 5 and moves fish 5 forward. The fish 5 hooked to the pin 8-1 receives a force that forces it to move forward, so it pushes up the weight roller 9 and moves forward. The weight of the weight roller 9 is applied to the fish 5 from above, so the spike drum 8 is pinned.

The explanation will be given by returning to FIG. 1 again. 11 is a tray with a concave center.

12 is a feather brush, which rotates counterclockwise to accelerate the fish coming out from the weight roller 9. 19 blows out water onto the tray 11 with a shower pipe.

The water blown out from the shower pipe 19 flows inside the tray 11, and when the fish moves on the tray 11, the water flows through the tray 11.
Reduce frictional resistance.

Further, dirt inside the tray 11 is washed away.

I3 and 14 are a pair of sensors, for example, 13 is a light emitting sensor and 14 is a light receiving sensor. A light beam is irradiated from the light emitting sensor 13 to the light receiving sensor 14 through the holes 13-1, 14 to 1 made in the tray 11.
It is possible to detect the passing of a fish and the position of the fish within the imaging range of the television camera based on changes in the electrical output of the camera.

I6 is a television camera, which is attached to the holder 18 with the lens facing downward. 17 is a strobe, which is attached to the boulder 18 with the light projection window facing downward.

A fish 5-1 pushed out by pins 8 to 1 of the spike drum 8 and exiting the weight roller 9 is accelerated by the feather brush 12, and moreover, by the water in the shower pipe 19 /E? 'fj
t and travels within the tray 11 at a speed of 1 m/sec or more. The sensor pair 13 and 14 detect the position of the fish, and several milliseconds later, through a control circuit (not shown), an instruction is given to the stoshikopo 17 to emit light, and an instruction to the television camera 16 to take an image is given. Since the light emitting time of the robots 1 to 17 is as short as several tens of microseconds, the posture of the fish 5-1 can be imaged without image blurring while the fish 5-1 is running. Since there is no need to temporarily stop the fish 5-1 on the tray 11 and start it up again for imaging, the number of times images can be taken per unit time can be increased, and high-speed processing is possible. .

108 is a spike drum, 108-1 is a pin.

109 is a weight roller, 109-1 is a Φ mountain, and IIO is a tray. These operations are the same as 8, 8-1.9.1-L 10 in the population of tray 11, but
-It's not the function of the tail itself that is the issue. 108 used here. '108-1゜109.109-1.
The role of 110 is to make the fish pause and create waiting time. This will be explained below.

The present invention is an image input device that does not put into practical use the above-mentioned prior application. The above-mentioned prior applications perform recognition processing using the video output of the television camera already mentioned in the present invention, and identify the dorsal and ventral areas of one animal.
Distinguish the tail. In the recognition processing of the above-mentioned prior application, video output from a television camera is used, and it takes some time (hereinafter referred to as recognition time) to obtain the results of the dorsal, ventral, and tail.

Further, as shown in Japanese Patent Application No. 57-229480, it takes some time (hereinafter referred to as setting time) to design the selection gate ta in a specified direction based on the recognition result. For example, the total time of recognition time and setting time is several hundred milliseconds.

As mentioned above, the fish 5-1 moves in the tray 1 at a speed of 1 m/s or more, and it takes several hundred milliseconds to complete the setting of the sensor pair 13,1 selection gate. After the fish 5-1 crosses the sensor pair 13.14, it will travel several hundred millimeters (several tens of centimeters) or more.

Therefore, the distance between the sensor pair 13.14 and the selection gates (idle distance) is several hundred millimeters or more, and the fish 5-1
Taking into account the size of , an idle interval of about 1 m is required. It is necessary to provide an idle interval to keep the fish 5-1 waiting until the recognition process and setting process are completed, but from the point of view of miniaturizing the device, this idle interval should be short. preferable.

The explanation will be given again using FIGS. 3 and 4. When the weight roller 1-09 is hanging down due to its own weight, the catch is on the plate 1.
10 and the weight roller 109 is set to be smaller than the thickness of the fish. The fish 5-1 that ran inside the I-ray 11 and crossed the sensor is caught by the tray 110 and the weight roller 10.
I get stuck between 9 and can't move forward. As shown in FIG. 4, the spike drum 108 rotates, the fish 5-1 is stopped until the bin 108-1 hooks the crocodile and sends the fish 5-1. Therefore, the fish 5-1 can be given a waiting time. Furthermore, the time required for the fish to travel through the tray 11 varies depending on the size of the fish. However, since the fish are driven out by the pin 108-1, the variation can be eliminated.

The spike drum 8 and the spike drum 108 have the same diameter and are driven at the same rotation period, and the spike pin 8-1
By appropriately setting the mutual phase angle of the spike pin 10B-1 and the spike pin 10B-1, the required waiting time is obtained. In an embodiment of the invention,
Since the diameter of the spike drum 108 is about 200 mm for a fish with a body length of 200 to 600 mm, the required waiting time can be obtained and the device can be made smaller.

(g) Effects of the invention According to the invention, there is no image blurring, and the cutout of the illuminated image is
It is possible to realize a fish body image input device that is easy, small, and high-speed.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing a means for separating and supplying fish one by one. FIG. 3 is a sectional view of FIG. 2, and FIG. 4 is a sectional view showing the relationship between the spike pin and the fish. In the figure, 1 is a vibration trough, 5.5-1 is a fish, 8 is a spike drum, 8-1 is a spike pin, 9 is a weight roller,
10 is a tray, 11 is a tray, 13 is a light projector, 14 is a light receiver, and 16 is a television camera. 17 is a strobe, 19 is a shower pipe, 108 is a spike drum, and 108-1 is a spike pin.

Claims (1)

[Claims] In a fish body image input device for obtaining individual fish body images for supplied fish, means for separating the fish one by one and supplying the fish to a fish body imaging position, and a detection means for detecting the presence of a fish at the fish body imaging position. a light emitting device that emits light toward the fish imaging position based on the output of the detection device; a device that performs an imaging operation on the fish at the fish imaging position illuminated by the light emitting device and photoelectrically converts the obtained image; A fish body image input device comprising a means for cleaning a fish body image position, and an intermittent feeding means for intermittently discharging the fish at the fish body image position, which is provided subsequent to the photoelectric conversion means.