CN202632352U - Machine vision-based rapid measurement apparatus for the number of core kernels of each row of corn ear - Google Patents
Machine vision-based rapid measurement apparatus for the number of core kernels of each row of corn ear Download PDFInfo
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- CN202632352U CN202632352U CN 201220185342 CN201220185342U CN202632352U CN 202632352 U CN202632352 U CN 202632352U CN 201220185342 CN201220185342 CN 201220185342 CN 201220185342 U CN201220185342 U CN 201220185342U CN 202632352 U CN202632352 U CN 202632352U
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Abstract
The utility model discloses a machine vision-based rapid measurement apparatus for the number of core kernels of each row of a corn ear. The rapid measurement apparatus comprises: multiple groups of image acquisition units, which are uniformly distributed at a same circumference formed by using a measured corn ear as a center; and an image processing and analyzing unit, which is respectively connected with the multiple groups of image acquisition units and is used for carrying out processing and analyzing on measured corn ear images obtained by the multiple groups of image acquisition units so as to obtain the number of the core kernels of each row of the measured corn ear. According to the utility model, the number of core kernels of each row of a corn ear can be measured under the premise that there is no damage and no contact, thereby reducing the manpower investment during the seed investigation process. Moreover, the apparatus has advantages of compact structure and high measurement efficiency.
Description
Technical field
The utility model relates to corn ear formalness parameter measuring technical field, relates in particular to the capable grain of a kind of corn ear based on machine vision and counts rapid measurement device.
Background technology
The external morphology index of corn ear; The quantity of every capable seed on the fruit ear particularly; Be to survey the important indicator that institute will investigate when producing species test with breeding of new variety, measuring method in the past is many carries out with manual type, and human cost input height, personal error are difficult to removal.Machine vision technique is widely used in the measurement links in fields such as machine manufacturing, materials processing with characteristics such as it are harmless, quick, accurate; In the disclosed at home and abroad patent; Patent CN101933417A discloses a kind of device that uses machine vision metrology corn ear external morphology; Can measure spike length, grain number per spike, the tassel row number of corn ear, the indexs such as grain number, bald sharp length of going; The light projection device that is comprised in the device of its design, specular-reflection unit are too complicated loaded down with trivial details, precision and stability that influence is measured.Patent CN101881598A discloses a kind of device that uses machine vision metrology corn ear external morphology; It adopts the method for stepper motor rotation corn ear to replace specular-reflection unit; Simplify to some extent on the structure; But need fruit ear be fixed on the step motor shaft in its measuring process, this performance constraint the efficient of measurement mechanism.
The utility model content
The technical matters that (one) will solve
The technical matters that the utility model will solve is the defective that overcomes above-mentioned prior art, improves precision and efficient that the capable grain number of corn ear is measured.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides the capable grain of a kind of corn ear based on machine vision to count rapid measurement device, and it comprises: the multiple series of images collecting unit, and being evenly distributed on tested corn ear is on the formed same circumference in center; The image processing and analyzing unit links to each other with said multiple series of images collecting unit respectively, and the tested corn ear image that said multiple series of images collecting unit is obtained carries out Treatment Analysis, obtains the capable grain number of tested corn ear.
Wherein, said image acquisition units comprises four lens cameras and is arranged on the lighting source of one of which side.
Wherein, the bracing frame that also comprises said image acquisition units of support fixation and tested corn ear.
Wherein, Support frame as described above comprises underframe and the vertical rack that is provided with perpendicular to underframe; The supported center that is arranged on said underframe of tested corn ear; The center that said vertical rack is evenly distributed on said underframe is that said image acquisition units is installed on the said vertical rack on the formed same circumference in the center of circle.
Wherein, the center of said underframe is provided with round table-like fruit ear and carries cup, the tested corn ear of its inner vertically placement.
Wherein, said fruit ear carrying cup is processed by transparent resin material.
Wherein, also comprise acquisition controller, link to each other with said multiple series of images collecting unit respectively, with the duty of control image acquisition units.
Wherein, said image acquisition units has four.
(3) beneficial effect
The capable grain of the corn ear based on machine vision that technique scheme provided is counted rapid measurement device; Can under harmless, noncontact prerequisite, measure the grain number of every row on the corn ear; Reduce the manual work input in the corn ear species test process, and apparatus structure is compact, efficiency of measurement is high.
Description of drawings
Fig. 1 is the structural representation that the capable grain of the corn ear based on machine vision of the utility model embodiment is counted rapid measurement device.
Wherein, 1, four lens cameras, 2, lighting source, 3, acquisition controller, 4, fruit ear carries cup, 5, bracing frame.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
The measurement mechanism of present embodiment comprises that a plurality of to be evenly distributed on tested corn ear be the image acquisition units on the formed same circumference in center; And the image processing and analyzing unit that links to each other respectively with the multiple series of images collecting unit; Image acquisition units collects after the image of tested corn ear; Institute's images acquired is sent to the image processing and analyzing unit, the tested corn ear image that is obtained is carried out Treatment Analysis, obtain the capable grain number of tested corn ear by it.
The capable grain of the corn ear based on machine vision that Fig. 1 shows present embodiment is counted a kind of structural representation of rapid measurement device.With reference to diagram, provided the example of four picture groups as collecting unit, every picture group comprises four lens cameras 1 as collecting unit and is arranged on the lighting source 2 of one of which side.Image acquisition units and tested corn ear all are supported and fixed on the illustrated bracing frame 5; The vertical rack (not indicating among the figure) that bracing frame 5 specifically comprises underframe (not indicating among the figure) and is provided with perpendicular to underframe; The supported center that is arranged on underframe of tested corn ear; The center that vertical rack is evenly distributed on underframe is on the formed same circumference in the center of circle, and every picture group is installed on its corresponding vertical rack with lighting source 2 as four lens cameras 1 of collecting unit.
In the present embodiment; Four lens cameras 1 are selected four identical industrial high-definition digital cameras compositions of model for use, and (model: the little MVC1000SAM-GE30ST4 of looking in Beijing), resolution of video camera is set at the 1280x1024 pixel, and camera lens uses 8.5mm PENTAX tight shot; Aperture is set to 2; Time shutter transfers to 1.5ms, and IMAQ frame speed is 30FPS, and video camera is equipped with external pulse signal shutter trigger interface.Bracing frame 5 is made up of the alloy material of two orthogonal rectangle transversal section, is divided into four branches in the four corners of the world, the long 40cm of each branch, wide 10cm, thick 5cm.Four lens cameras 1 are installed on bracing frame 5 four corners of the world four directions through vertical rack, and each camera and tested corn ear are apart from 35cm, apart from underframe 15cm.Lighting source 2 is made up of four identical MVRM-141W white light (150lux) face matrix LED pointolites of model, and the pointolite number is 3x10, and employed power supply is the dc constant voltage constant current source, and the stable nothing of radiation source becomes frequently.Lighting source 2 is fixed on 3cm place, four lens cameras, 1 top, and direction is parallel with camera lens.
The underframe center is provided with fruit ear and carries cup 4, the tested corn ear of its inner vertically placement.It is transparent resin material that fruit ear carries cup 4, and cup is truncated conical shape, bottom surface diameter 3cm, and rim of a cup diameter 8cm, the high 25cm of cup when carrying out the fruit ear measurement, puts into fruit ear down with the fruit ear top and carries cup 4.
Also be provided with acquisition controller 3 in the present embodiment, link to each other with the multiple series of images collecting unit respectively, with the duty of control image acquisition units; Acquisition controller 3 is connected with main control computer through Ethernet interface, converts the control signal of main control computer into pulse signal, 2 switchings of driving lighting source; Trigger the shutter of four lens cameras 1; To the raw image data compression, upload to main control computer through Ethernet interface, message transmission rate is 1Gbps.Particularly, lighting source 2 is connected with acquisition controller 3 through data line, and the pulse signal that receives acquisition controller 3 is accomplished the shutoff operation of opening of light source; Be connected through data line between four lens cameras 1 and the acquisition controller 3, receive the pulse signal of acquisition controller 3, the view data that transmission is gathered is to acquisition controller 3.
Use the measurement mechanism of present embodiment to carry out the capable grain number of corn ear when measuring; At first fruit ear is put on tested corn ear top down and carried cup 4; Main control computer sends control signal; Open east side lighting source 2 and trigger this side four lens cameras 1 photographic images, close east side lighting source 2 after image taking finishes, successively the lighting source 2 and four lens cameras 1 of southern side, west side, north side are carried out aforesaid operations in the direction of the clock; The image that obtains is sent on the main control computer by acquisition controller 3, and follow-up image analysis processing operation is accomplished by the image processing and analyzing unit on the main control computer.
Can find out that by above embodiment the utility model can be measured the grain number of every row on the corn ear under harmless, noncontact prerequisite, reduce the manual work input in the corn ear species test process, and apparatus structure is compact, efficiency of measurement is high; All drawbacks that the manual measurement mode in the past of not only having solved exists reduce the human cost input, increase automaticity, have also improved a series of problems such as existing measurement mechanism hardware configuration is complicated, operating process is loaded down with trivial details simultaneously.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (8)
1. the capable grain of the corn ear based on machine vision is counted rapid measurement device, it is characterized in that, comprising: the multiple series of images collecting unit, and being evenly distributed on tested corn ear is on the formed same circumference in center; The image processing and analyzing unit links to each other with said multiple series of images collecting unit respectively, and the tested corn ear image that said multiple series of images collecting unit is obtained carries out Treatment Analysis, obtains the capable grain number of tested corn ear.
2. the capable grain of the corn ear based on machine vision as claimed in claim 1 is counted rapid measurement device, it is characterized in that, said image acquisition units comprises four lens cameras and is arranged on the lighting source of one of which side.
3. the capable grain of the corn ear based on machine vision as claimed in claim 1 is counted rapid measurement device, it is characterized in that, also comprises the bracing frame of said image acquisition units of support fixation and tested corn ear.
4. the capable grain of the corn ear based on machine vision as claimed in claim 3 is counted rapid measurement device; It is characterized in that; Support frame as described above comprises underframe and the vertical rack that is provided with perpendicular to underframe; The center that the supported center that is arranged on said underframe of tested corn ear, said vertical rack are evenly distributed on said underframe is that said image acquisition units is installed on the said vertical rack on the formed same circumference in the center of circle.
5. the capable grain of the corn ear based on machine vision as claimed in claim 4 is counted rapid measurement device, it is characterized in that, the center of said underframe is provided with round table-like fruit ear and carries cup, the tested corn ear of its inner vertically placement.
6. the capable grain of the corn ear based on machine vision as claimed in claim 5 is counted rapid measurement device, it is characterized in that, said fruit ear carries cup to be processed by transparent resin material.
7. the capable grain of the corn ear based on machine vision as claimed in claim 1 is counted rapid measurement device, it is characterized in that, also comprises acquisition controller, links to each other with said multiple series of images collecting unit respectively, with the duty of control image acquisition units.
8. the capable grain of the corn ear based on machine vision as claimed in claim 1 is counted rapid measurement device, it is characterized in that, said image acquisition units has four.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220185342 CN202632352U (en) | 2012-04-26 | 2012-04-26 | Machine vision-based rapid measurement apparatus for the number of core kernels of each row of corn ear |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220185342 CN202632352U (en) | 2012-04-26 | 2012-04-26 | Machine vision-based rapid measurement apparatus for the number of core kernels of each row of corn ear |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190224A (en) * | 2013-03-26 | 2013-07-10 | 中国农业大学 | Computer vision technique-based corn ear species test method, system and device |
| CN103210716A (en) * | 2013-04-24 | 2013-07-24 | 北京农业信息技术研究中心 | Corn ear test method |
| CN105830580A (en) * | 2016-03-22 | 2016-08-10 | 北京农业信息技术研究中心 | Ear image information acquisition device and method |
| CN113418466A (en) * | 2021-06-15 | 2021-09-21 | 浙江大学 | Four-eye stereoscopic vision measuring device with adjustable camera position and posture |
-
2012
- 2012-04-26 CN CN 201220185342 patent/CN202632352U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190224A (en) * | 2013-03-26 | 2013-07-10 | 中国农业大学 | Computer vision technique-based corn ear species test method, system and device |
| CN103190224B (en) * | 2013-03-26 | 2015-02-18 | 中国农业大学 | Computer vision technique-based corn ear species test method, system and device |
| CN103210716A (en) * | 2013-04-24 | 2013-07-24 | 北京农业信息技术研究中心 | Corn ear test method |
| CN103210716B (en) * | 2013-04-24 | 2014-12-17 | 北京农业信息技术研究中心 | Corn ear test method |
| CN105830580A (en) * | 2016-03-22 | 2016-08-10 | 北京农业信息技术研究中心 | Ear image information acquisition device and method |
| CN105830580B (en) * | 2016-03-22 | 2018-07-06 | 北京农业信息技术研究中心 | A kind of fruit ear image information acquisition device and method |
| CN113418466A (en) * | 2021-06-15 | 2021-09-21 | 浙江大学 | Four-eye stereoscopic vision measuring device with adjustable camera position and posture |
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Granted publication date: 20121226 |