CN208187400U - A kind of long measuring device of Fish based on machine vision - Google Patents
A kind of long measuring device of Fish based on machine vision Download PDFInfo
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- CN208187400U CN208187400U CN201820603975.7U CN201820603975U CN208187400U CN 208187400 U CN208187400 U CN 208187400U CN 201820603975 U CN201820603975 U CN 201820603975U CN 208187400 U CN208187400 U CN 208187400U
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Abstract
The utility model provides a kind of long measuring device of the Fish based on machine vision, and device includes underwater water-proof CCD camera, upper and lower slide rail, first motor, input unit and controller；The output of input unit connects the input of controller, and the output of controller connects first motor, and first motor connects glidepath, and controller and water-proof CCD camera are bi-directionally connected, and water-proof CCD camera is on upper and lower slide rail.Underwater water-proof CCD camera receives the first position of the first shooting instruction sent in water according to controller and shoots to fish body, obtain the first fish body image, first motor receives the instruction control upper and lower slide rail that moves up and down sent according to controller and moves up and down the second position stopped after pre-determined distance in water, the camera receives the second position of the second shooting instruction sent in water according to controller and shoots to fish body, the second fish body image is obtained, controller is long according to two fish body images calculating fish body bodies.The utility model risk of damage is low, time-consuming short, high-efficient.
Description
Technical field
The utility model relates to fields of measurement, more particularly, to a kind of long measurement dress of Fish based on machine vision
It sets.
Background technique
As Fisheries Development big country, fish culture plant layout is huge in China.Fish growth DATA REASONING is in breeding process
In it is essential, be related to enterprise fish fry is launched, the feeding of feed, disease control, harvest fishing etc..
Traditional Fish length measuring method, i.e., will by tools such as vernier caliper, measured body weight devices mainly by manual measurement
Live fish is salvaged to assess body weight gain, but this method takes a long time, labour intensive, low efficiency, tends to have omission, and gives fish
Body causes stress, increases the risk of damage or reduces the feeding rate of fish and inhibit its growth.
Utility model content
The utility model provide it is a kind of overcome the above problem or at least be partially solved the above problem based on machine regard
The long measuring device of the Fish of feel.
In a first aspect, the utility model provides a kind of long measuring device of the Fish based on machine vision, comprising: underwater anti-
Water camera, upper and lower slide rail, first motor, input unit and controller；
The output of the input unit connects the input of the controller, the output connection of the controller first electricity
Machine, the first motor connect the upper and lower slide rail, and the controller and the water-proof CCD camera are bi-directionally connected, and the waterproof is taken the photograph
As head is mounted on the upper and lower slide rail.
Preferably, further includes: left and right sliding rail and the second motor；
Second motor connects the left and right sliding rail, and the upper and lower slide rail is mounted on the left and right sliding rail, the control
The output of device processed connects second motor.
Preferably, further includes: drive control device；
The output of the controller connects the input of the drive control device, described in the output connection of the drive control device
First motor and second motor.
Preferably, further includes: USB converter；
The output of the controller connects the input of the USB converter, and the output of the USB converter connects the drive
The input of movement controller.
Preferably, the first motor and second motor are stepper motor.
Preferably, the camera lens of the underwater water-proof CCD camera be can 360 degree rotation CCD camera lens.
Preferably, the underwater water-proof CCD camera connects the controller by AV1 Interface Video line.
Preferably, further includes: display device；
The output of the controller connects the display device.
Preferably, the input unit and the display device become one.
Preferably, the input unit and the display device are integrated into touch display screen.
As shown from the above technical solution, the utility model exports the defeated of the connection controller due to the input unit
Enter, the output of the controller connects the first motor, and the first motor connects the upper and lower slide rail, the controller and
The water-proof CCD camera is bi-directionally connected, and the water-proof CCD camera is mounted on the upper and lower slide rail, and controller can pass through control the
One motor control upper and lower slide rail moves up and down, and shoots the fish of two positions before and after movement respectively by underwater water-proof CCD camera
Body image, long further according to the fish body image calculating fish body body of two positions, fish body does not have to be detached from pond, will not cause to press to fish body
Power can be such that fish body grows under conditions of stabilization, reduce the risk of damage, will not inhibit it because of the feeding rate for reducing fish
Growth, it is time-consuming short, high-efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the long measuring device of the Fish based on machine vision of an embodiment of the present invention；
Fig. 2 is the flow chart for the Fish length measuring method that an embodiment of the present invention provides；
Fig. 3 is the schematic diagram at the interface for the touch display screen that an embodiment of the present invention provides.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Fig. 1 is the structural schematic diagram of the long measuring device of the Fish based on machine vision of an embodiment of the present invention.
A kind of long measuring device of Fish based on machine vision as shown in Figure 1, comprising: underwater water-proof CCD camera 5, on
Glidepath 4, first motor 3, input unit and controller 2；
The output of the input unit connects the input of the controller 2, the output connection described first of the controller 2
Motor 3, the first motor 3 connect the upper and lower slide rail 4, and the controller 2 and the water-proof CCD camera are bi-directionally connected, described
Water-proof CCD camera is mounted on the upper and lower slide rail 4.
It is understood that the input unit, for receiving the first shooting instruction, moving up and down instruction and the second shooting
Instruction, and by first shooting instruction, it is described move up and down instruction and second shooting instruction be sent to the controller
2；
The controller 2, it is described underwater anti-for first shooting instruction and second shooting instruction to be sent to
Water camera 5 moves up and down described instruction and is sent to the first motor 3, according to the first fish body image and the second fish body figure
It is long as calculating fish body body；
The first motor 3 is moved down on the upper and lower slide rail 4 for moving up and down instruction operation according to controlling
The second position in water is stopped after dynamic pre-determined distance；
The underwater water-proof CCD camera 5, for according to first shooting instruction first position in water to fish body into
Row shooting, is sent to the controller 2 after obtaining the first fish body image, according to the second of second shooting instruction in water
It sets and fish body is shot, be sent to the controller 2 after obtaining the second fish body image.
It is worth noting that the fish body image in the present embodiment is color image, it is the same below.
It is worth noting that described device further includes power supply 1, the power supply 1 connects the controller 2, is the control
Device 2 provides electric energy.
In a specific embodiment, the camera lens of the underwater water-proof CCD camera 5 can for can 360 degree rotation CCD camera lens.
Underwater water-proof CCD camera 5 can connect the controller 2 by AV1 Interface Video line.
The utility model connects the input of the controller 2 due to the output of the input unit, the controller 2 it is defeated
The first motor 3 is connected out, and the first motor 3 connects the upper and lower slide rail 4, the controller 2 and waterproof camera shooting
Head is bi-directionally connected, and the water-proof CCD camera is mounted on the upper and lower slide rail 4, and controller 2 can be controlled by control first motor 3
Upper and lower slide rail 4 moves up and down, and shoots the fish body image for moving two positions of front and back respectively by underwater water-proof CCD camera 5,
Long further according to the fish body image calculating fish body body of two positions, fish body does not have to be detached from pond, will not cause stress, can make to fish body
Fish body is grown under conditions of stabilization, reduces the risk of damage, will not be inhibited its growth because of the feeding rate for reducing fish, be consumed
When it is short, high-efficient.
Can also according to above-mentioned multiple data of acquisition be farm establish fish body growth parameter(s) database, to the mechanism that feeds,
Supervision of epidemic disease, shoal of fish analysis, abnormal behaviour etc. carry out data support.User can realize long-range monitoring fish body growing state, to life
Long data, which are analyzed and established, preferably feeds mechanism and harvest time, reaches optimal economic income state.
As a kind of preferred embodiment, further includes: left and right sliding rail 6 and the second motor；
Second motor connects the left and right sliding rail 6, and the upper and lower slide rail 4 is mounted on the left and right sliding rail 6, described
The output of controller 2 connects second motor.
It is worth noting that the input unit, it is also used to receive and moves left and right instruction and stopping moves left and right instruction, and
Instruction is moved left and right and stopping moves left and right instruction and is sent to the controller 2 for described；
The controller 2, be also used to by it is described move left and right instruction and the stopping move left and right instruction be sent to it is described
Second motor；
Second motor is moved left and right, root for moving left and right instruction operation according to controlling left and right sliding rail 6
It is out of service that instruction is moved left and right according to the stopping, being moved left and right with controlling the stopping of left and right sliding rail 6, and is rested on described first
It sets.
Location A is rested on it should be noted that setting before setting the movement of left and right sliding rail 6, the present embodiment is directed to location A shooting
Bad less than the fish body or shooting to be measured, therefore, described structure control or so sliding rail 6 is moved to through this embodiment
First position, and first position can take the fish body to be measured.Certainly, if location A can take the fish body to be measured,
Mobile left and right sliding rail 6 is not needed then.
It is worth noting that described device may also include display device, the output of the controller 2 connects the display dress
It sets, for showing the fish body that underwater water-proof CCD camera 5 is irradiated to and the fish body image taken.The input unit and described
Display device can become one, and such as be integrated into touch display screen.
In the present embodiment, the fish body that underwater water-proof CCD camera 5 is irradiated to is shown by display device, by display device
Upper observation determines the need for moving left and right underwater water-proof CCD camera 5, and when current shooting position is bad, input moves left and right finger
It enables, when determination can take best fish body image, input stops moving left and right instruction, makes underwater water-proof CCD camera 5 can be with
Optimum position is rested on, finally guarantees available optimal fish body image, i.e. the present embodiment can be by adjusting left and right sliding rail 6
Position adjusts the position of underwater water-proof CCD camera 5, so as to obtain optimal fish body image.
As a kind of preferred embodiment, further includes: drive control device；
The output of the controller connects the input of the drive control device, described in the output connection of the drive control device
First motor and second motor.
The controller 2 connects the first motor 3 and the second motor by drive control device 2, and connection relationship can adopt
With existing connection relationship, details are not described herein.
It is worth noting that described device may also include that USB turns if the data-interface of drive control device 2 is USB port
Parallel operation；
The output of the controller connects the input of the USB converter, and the output of the USB converter connects the drive
The input of movement controller.
In a specific embodiment, the first motor 3 and the second motor can be stepper motor.
It is worth noting that the input unit can be realized by hardware device, such as touch display screen etc., but not office
It is limited to this, can be also realized by input circuit.C470 controller 2 or C490 controller 2 etc. can be used in the controller 2, but simultaneously
It is not limited to this, it will not enumerate in the present embodiment.
The above-mentioned apparatus embodiment of the utility model is only section Example, and those skilled in the art are real in above-mentioned each device
Available various modifications are within the protection scope of the present utility model on the basis of applying example.
Fig. 2 is the flow chart for the Fish length measuring method that an embodiment of the present invention provides.
The long measurement of a kind of Fish based on the long measuring device of the Fish based on machine vision as shown in Figure 2
Method, comprising:
S201, the input unit receive the first shooting instruction, and first shooting instruction are sent to the control
First shooting instruction is sent to the underwater water-proof CCD camera, the underwater water-proof CCD camera root by device, the controller
Fish body is shot according to the first position of first shooting instruction in water, is sent to after the first fish body image of acquisition described
Controller；
S202, input unit reception move up and down instruction, and move up and down instruction by described and be sent to the control
Device, the controller move up and down described instruction and are sent to the first motor, and the first motor is moved down according on described
Dynamic instruction operation moves up and down the second position stopped after pre-determined distance in water to control the upper and lower slide rail；
S203, the input unit receive the second shooting instruction, and second shooting instruction are sent to the control
Second shooting instruction is sent to the underwater water-proof CCD camera, the underwater water-proof CCD camera root by device, the controller
Fish body is shot according to the second position of second shooting instruction in water, is sent to after the second fish body image of acquisition described
Controller；
S204, the controller are long according to the first fish body image and the second fish body image calculating fish body body.
The utility model controller can control upper and lower slide rail by control first motor and move up and down, and pass through underwater waterproof
Camera shoots the fish body image of two positions of mobile front and back respectively, calculates fish body body further according to the fish body image of two positions
Long, fish body does not have to be detached from pond, will not cause stress to fish body, fish body can be made to grow under conditions of stabilization, reduce damage
Risk will not inhibit its growth because of the feeding rate for reducing fish, time-consuming short, high-efficient.
As a kind of preferred embodiment, the step S204, comprising:
Length of the fish body in the first fish body image is calculated according to the first fish body image；
Length of the fish body in the second fish body image is calculated according to the second fish body image；
According to the fish body in the length of length and fish body in the second fish body image in the first fish body image, fish is calculated
Body body is long.
As a kind of preferred embodiment, length of the fish body in the first fish body image is calculated according to the first fish body image
Degree, comprising:
The binary image of the first fish body image is obtained according to the first fish body image；
It is understood that collected first fish body image is carried out gray processing；
It is worth noting that by the colored image of shooting be converted to the process of gray level image the gray processing of image at
It manages, the color of each pixel has tri- components of R, G, B to determine in color image, and each component has 255 intermediate values can use, and gray scale
Image is a kind of identical rainbow image of tri- components of RGB, so after collecting fish image, using following formula (one)
Three components are weighted, gray level image is obtained.
F (i, j)=0.30R (i, j)+0.59G (i, j)+0.11B (i, j) (one)
Wherein, it is i that f (i, j), which is horizontal pixel coordinate points, and longitudinal pixel coordinate point is the color of the pixel of the pixel of j,
R (i, j) is that horizontal pixel coordinate points are i, and longitudinal pixel coordinate point is the R component of the pixel of j, and G (i, j) is horizontal pixel seat
Punctuate is i, and longitudinal pixel coordinate point is the G component of the pixel of j, and B (i, j) is that horizontal pixel coordinate points are i, and longitudinal pixel is sat
Punctuate is the B component of the pixel of j.
In order to enable convenience of calculation, obtained gray level image is handled by maximum variance between clusters after gray processing,
Obtain binary image.
This step specifically includes: 0 (black) and 255 (whites) are set by the gray value of each pixel in image,
Allow whole image that only black and white effect is presented.After fish body image gray processing, binaryzation is executed, program is by calculating figure
As in pixel matrix the gray value of all pixels point average value, then allow each pixel to be compared with average value
Compared with being set as 0 less than average value, be set as 255 greater than average value, obtain binary image.
The binary image is corrected by the way of median filtering；
If there is white noise around obtained binary image, denoising point button is clicked, it will using median filter
Picture element matrix traverses one time, and the pixel that the difference of transference surrounding pixel gray value is bigger changes to take the value close with surrounding pixel values,
Eliminate isolated noise spot.
The contour images of fish body in the first fish body image are obtained according to the binary image；
This step specifically includes: carrying out contours extract to the binary image using canny algorithm, the profile is obtained
Image, and be shown in interface (such as touch display screen).The interface of touch display screen is as shown in Figure 3.According to the fish body
Contour images obtain the coordinate value of the corresponding each pixel of profile of fish body；
According to the coordinate value of the corresponding each pixel of the profile of the fish body, length of the fish body in the first fish body image is calculated
Degree.
It is understood that the method for calculating length of the fish body in the second fish body image according to the second fish body image
It is identical as the embodiment, it repeats no more.
It is described below and calculates the specific of length of the fish body in fish body image according to the contour images of fish body in fish body image
Step, comprising:
It traverses each white pixel point coordinate value (x, y) on profile and is stored in Vector Groups, finding length direction (can people
To set which direction as length direction) on min coordinates point (x1,y1) and maximum coordinates point (x2,y2) (coordinate points are picture
Vegetarian refreshments, similarly hereinafter), following formula (two) are utilized to calculate the distance between two pixels | dis |, the as length of fish body in the picture
Degree.
As a kind of preferred embodiment, according to length of the fish body in the first fish body image and fish body in the second fish body
It is long to calculate fish body body for length in image, comprising:
According to the fish body in the length of length and fish body in the second fish body image in the first fish body image, pass through public affairs
Formula (three), (four), (five) calculating fish body body are long
L=a/u1+bp1(3)
u1=f-km/ (k-1) (four)
K=p2/p1(5)
Wherein, L is that fish body body is long, p1For length of the fish body in the first fish body image, p2It is fish body in the second fish body image
In length, a, b are constant, and f is the focal length of underwater water-proof CCD camera, and for precognition value, m is the pre-determined distance.
As a kind of preferred embodiment, before the input unit in the step S201 receives the first shooting instruction,
The method also includes:
Input unit reception moves left and right instruction, and moves left and right instruction by described and be sent to the controller, institute
It states controller to move left and right instruction by described and be sent to the second motor, second motor moves left and right instruction fortune according to
Row, is moved left and right with controlling left and right sliding rail；
The input unit, which receives, stops moving left and right instruction, and the stopping is moved left and right instruction and is sent to the control
The stopping is moved left and right instruction and is sent to second motor by device processed, the controller, and second motor is according to
It is out of service that stopping moves left and right instruction, is moved left and right with controlling the stopping of left and right sliding rail, and rests on the first position.
According to the introduction of Installation practice it is found that in the present embodiment, water is shown by display device connected to the controller
The fish body that lower water-proof CCD camera is irradiated to determines the need for moving left and right underwater waterproof camera shooting by observing on the display apparatus
Head, when current shooting position is bad, input moves left and right instruction, when determination can take best fish body image, input
Stopping moves left and right instruction, so that underwater water-proof CCD camera is rested on optimum position, finally guarantees available optimal fish
Body image, i.e. the present embodiment can adjust the position of underwater water-proof CCD camera by adjusting the position of left and right sliding rail, so as to
To optimal fish body image.
As a kind of preferred embodiment, before the input unit in the step S201 receives the first shooting instruction,
The method also includes:
The input unit receives rotation instruction, and rotation instruction is sent to the controller, the controller
The rotation instruction is sent to the rotating electric machine of the underwater water-proof CCD camera, the rotating electric machine is instructed according to the rotation
Rotation；
The input unit receives instruction of stopping rotating, and the instruction of stopping rotating is sent to the controller, described
The instruction of stopping rotating is sent to the rotating electric machine by controller, and rotating electric machine instruction of stopping rotating according to stops
Spin-ended turn.
It is worth noting that rotation instruction is manually entered in the case where fish head and fish tail cannot be seen clearly on the display apparatus,
And instruction of stopping rotating is manually entered in the case where fish head and fish tail can be seen clearly, it thereby may be ensured that and take best fish body figure
Picture.In actual use, first two are controlled upper and lower slide rail respectively and the stepper motor arrangement of left and right sliding rail sliding is slided in corresponding
On rail, underwater water-proof CCD camera is connected with controller by AV data line, and is installed on upper and lower slide rail, sliding rail is placed in feeding
It grows in the pond of fish body, machinery is converted electrical energy by controller control stepper motor and underwater water-proof CCD camera, stepper motor
Upper and lower slide rail and left and right sliding rail can be driven to slide up and down so that underwater water-proof CCD camera different distances (herein not
Same distance refers mainly to different water depth) under shoot the movable image of fish body, be stored in the memory card of inside modules, operator is being controlled
The fish body that device interface (such as touch display screen) processed selection needs to measure, and outpoured image transmitting with mouse circle come, memory card extremely
Data processing module and the long computing module of body (the two modules are the different function modules in controller), data processing module root
Relevant parameter is obtained according to image and is sent to the long computing module of body.It is long that the long computing module of body according to relevant parameter calculates fish body body
It is shown on the screen (screen can be touch display screen) of controller, and is recorded in memory card.Between the settable shooting of controller
Every after shooting, controller sends sleep signal, and underwater water-proof CCD camera returns to initial position, and enters dormant state.
The data that controller will receive, are classified with image capturing time, are associated with fish body individual growth data, video image
Data establish fish body growth parameter(s) database, and are uploaded to server.
The above method embodiment of the utility model is only section Example, and those skilled in the art are real in above-mentioned each method
Available various modifications are within the protection scope of the present utility model on the basis of applying example.
It should be noted that in all parts of the device of the utility model, according to the function that it to be realized to it
In component carried out logical partitioning, still, the utility model is not only restricted to this, can according to need to all parts carry out weight
It is new to divide or combine, for example, can be single component by some component combinations, or some components can further be decomposed
For more subassemblies.
The utility model is limited it should be noted that above-described embodiment illustrates rather than the utility model,
And those skilled in the art can be designed alternative embodiment without departing from the scope of the appended claims.Word
" comprising " does not exclude the presence of element or step not listed in the claims.The utility model can by means of include it is several not
It is realized with the hardware of element and by means of properly programmed computer.If in the unit claim for listing equipment for drying
In, several in these devices, which can be, to be embodied by the same item of hardware.
Embodiment of above is only suitable for illustrating the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is defined by the claims.
Claims (10)
1. a kind of long measuring device of Fish based on machine vision characterized by comprising underwater water-proof CCD camera, up and down
Sliding rail, first motor, input unit and controller；
The output of the input unit connects the input of the controller, and the output of the controller connects the first motor,
The first motor connects the upper and lower slide rail, and the controller and the water-proof CCD camera are bi-directionally connected, the waterproof camera shooting
Head is mounted on the upper and lower slide rail.
2. the apparatus according to claim 1, which is characterized in that further include: left and right sliding rail and the second motor；
Second motor connects the left and right sliding rail, and the upper and lower slide rail is mounted on the left and right sliding rail, the controller
Output connect second motor.
3. the apparatus of claim 2, which is characterized in that further include: drive control device；
The output of the controller connects the input of the drive control device, the output connection described first of the drive control device
Motor and second motor.
4. device according to claim 3, which is characterized in that further include: USB converter；
The output of the controller connects the input of the USB converter, and the output of the USB converter connects the driving control
The input of device processed.
5. the apparatus of claim 2, which is characterized in that the first motor and second motor are stepping electricity
Machine.
6. the apparatus according to claim 1, which is characterized in that the camera lens of the underwater water-proof CCD camera is can 360 degree of rotations
The CCD camera lens turned.
7. the apparatus according to claim 1, which is characterized in that the underwater water-proof CCD camera passes through AV1 Interface Video line
Connect the controller.
8. the apparatus according to claim 1, which is characterized in that further include: display device；
The output of the controller connects the display device.
9. device according to claim 8, which is characterized in that the input unit and the display device are integrated into one
Body.
10. device according to claim 9, which is characterized in that the input unit and the display device are integrated into touching
Touch display screen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603975.7U CN208187400U (en) | 2018-04-25 | 2018-04-25 | A kind of long measuring device of Fish based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603975.7U CN208187400U (en) | 2018-04-25 | 2018-04-25 | A kind of long measuring device of Fish based on machine vision |
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| CN208187400U true CN208187400U (en) | 2018-12-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267122A (en) * | 2018-04-25 | 2018-07-10 | 北京农业信息技术研究中心 | A kind of long measuring device of underwater Fish and measuring method based on machine vision |
| CN110298856A (en) * | 2019-06-19 | 2019-10-01 | 江苏农林职业技术学院 | A kind of contactless evaluation method of length of fish body |
| CN112232978A (en) * | 2020-10-20 | 2021-01-15 | 青岛丰禾星普科技有限公司 | Aquatic product length and weight detection method, terminal equipment and storage medium |
-
2018
- 2018-04-25 CN CN201820603975.7U patent/CN208187400U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267122A (en) * | 2018-04-25 | 2018-07-10 | 北京农业信息技术研究中心 | A kind of long measuring device of underwater Fish and measuring method based on machine vision |
| CN110298856A (en) * | 2019-06-19 | 2019-10-01 | 江苏农林职业技术学院 | A kind of contactless evaluation method of length of fish body |
| CN112232978A (en) * | 2020-10-20 | 2021-01-15 | 青岛丰禾星普科技有限公司 | Aquatic product length and weight detection method, terminal equipment and storage medium |
| CN112232978B (en) * | 2020-10-20 | 2022-11-04 | 青岛丰禾星普科技有限公司 | Aquatic product length and weight detection method, terminal equipment and storage medium |
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