CN103053243A - Corn ear testing device based on key quality point control - Google Patents
Corn ear testing device based on key quality point control Download PDFInfo
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- CN103053243A CN103053243A CN2013100155243A CN201310015524A CN103053243A CN 103053243 A CN103053243 A CN 103053243A CN 2013100155243 A CN2013100155243 A CN 2013100155243A CN 201310015524 A CN201310015524 A CN 201310015524A CN 103053243 A CN103053243 A CN 103053243A
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Abstract
The invention discloses a corn ear testing device based on key quality point control. The corn ear testing device comprises a plurality of corn ear carrying platforms, an image collection unit, a light supplementing unit and an image processing unit, wherein the color of an object carrying face of each corn ear carrying platform is different from the color of corn ears so that noise data of a corn ear image collected by the image collection unit is reduced, and distortion correction regions are further arranged on the peripheries of the corn ear carrying platforms. The corn ear testing device disclosed by the invention is provided with the plurality of corn ear carrying platforms to test a plurality of corn ears at the same time so that the testing efficiency is greatly improved. Furthermore, the background of each corn ear carrying platform has the color which is obviously different from the color of the corn ears so that light reflection apertures and shades are reduced and noises of a collected image are eliminated; and the corn ear carrying platforms are provided with the distortion correction regions so as to eliminate image distortion of corn ear images which are far away from the image collection unit and improve the testing precision.
Description
Technical field
The present invention relates to the corn seed investigating technical field, espespecially a kind of corn ear seed investigating device based on crucial quality point control.
Background technology
The corn scientific research personnel is in order to set up the corn resources storehouse, to carry out corn assistant breeding experiment, and wherein an important link is that corn ear material proterties obtained namely corn ear species test.The basic proterties of corn ear comprises: tassel row number, a row grain number, grain number per spike, spike length, fringe diameter, prominent point length, cob length, cob diameter, fruit ear volume, cob volume, fringe is heavy, cob is heavy, seed coat color, seed length, seed width, seed are thick, 100-grain weight, seed type etc. reach 20 indexs.Generally, carry out the Maize Sciences experiment, need to carry out species test to up to ten thousand parts corn ear material.Need the corn material quantity of species test, the index number that will measure and to the requirement of index precision, so that the corn ear species test is a system engineering of wasting time and energy.
At present, common species test mode has two kinds: artificial species test and utilize the seed investigating device species test.Generally take artificial species test as main, but artificial species test has a lot of drawbacks for the small-scale species test, as: measuring process can't be monitored, the species test index too many, the species test operation is numerous and diverse, cost of labor is too high, species test standard disunity etc.For extensive species test, the corn scientific research personnel generally selects the seed investigating device species test.The corn ear seed investigating device is to utilize Digital image technology and sensor technology that each index of corn ear is measured.By camera collection corn ear, cob, seed view data, measure morphological index by image processing techniques, obtain weight indicator by weight sensor equipment.
Along with carrying out of the large tracts of land scientific experiments such as corn inbred line experiment, corn hybridization experiment, so that corn variety various, come in every shape, dividing with color has yellow maize, white maize, yellowish-white corn, jet rice, Qarnet rice, mixes kernel corn (yellow, white, black, purple combination); The corn ear size also is not quite similar, and the shortest has about 5cm, the longest 50cm that truly has; In addition, the regularity of corn ear also is not quite similar, and the seed on the inbred line kind corn ear is mainly with mixed and disorderly distribution.Thereby propose higher requirement for machine species test Machine Design and image calculation algorithm.
At present, the image-based seed investigating device does not have universality to the crucial quality point control in the species test, and the putting position of the color of fruit ear, size, regularity and fruit ear all can restrict the species test precision of seed investigating device.Simultaneously, be subjected to illumination effect and the collection background noise that produces, the pattern distortion that produces causes tassel row number to be out of one's reckoning by the imperfect information that gathers image and all brings error to image-based species test measurement by putting arbitrarily.In addition, existing image-based seed investigating device generally can only carry out species test to a corn ear, and species test efficient is low.
Summary of the invention
Problem for prior art exists the object of the present invention is to provide a kind of corn ear seed investigating device that can improve simultaneously species test efficient and species test precision.
For achieving the above object, the corn ear seed investigating device based on crucial quality point control of the present invention comprises a plurality of corn ear microscope carriers, image acquisition units, light filling unit and graphics processing unit; Described corn ear microscope carrier is used for carrying and the corn ear to be measured of weighing; Described image acquisition units is used for gathering the corn ear image to be measured on a plurality of corn ear microscope carriers; Described light filling unit is used to the IMAQ illumination; Described graphics processing unit is used for receiving and processing the corn ear image that described image acquisition units gathers; Loading surface color and the corn ear color of described corn ear microscope carrier distinguish, and the noise data of the corn ear image of image acquisition units collection is reduced, and also be provided with the distortion correction district around the corn ear microscope carrier.
Further, a plurality of described corn ear microscope carriers interval in one line arranges, described image acquisition units be arranged on described a plurality of corn ear microscope carriers middle part directly over, described corn ear microscope carrier is the rectangle pallet, and described distortion correction district is the black enclosure zone that is arranged on the rectangle pallet four edges.
Further, the loading surface of described corn ear microscope carrier is provided with navy blue shooting background cloth.
Further, described noise data is reflective aperture and shade.
Further, the corn ear that also is provided with on the loading surface of described corn ear microscope carrier traverse on it carries out spacing positioner.
Further, described positioner is to be arranged on four jiaos of described corn ear microscope carriers and four locating dowels centered by the weight sensor that arranges on the corn ear microscope carrier, and the spacing between locating dowel is set so that corn ear is positioned at wherein according to the size of corn ear.
Further, described corn ear seed investigating device also is provided with the corn kernel microscope carrier for carrying and the corn kernel of weighing, and described corn kernel microscope carrier is the rectangle pallet, is provided with the standard seed in this rectangle pallet and puts district and special-shaped seed mark zone.
Further, described graphics processing unit can calculate according to the weight data of the image of image acquisition units collection and described corn ear microscope carrier and the collection of described corn kernel microscope carrier the basic proterties of corn ear.
Further, the basic proterties of described corn ear comprises tassel row number, row grain number, grain number per spike, spike length, fringe diameter, prominent point length, cob length, cob diameter, fruit ear volume, cob volume, fringe weight, cob weight, seed coat color, seed length, seed width, seed is thick and 100-grain weight.
Further, described tassel row number calculates by following formula:
Total number of corncob line number=corn kernel/row grain number, total number of corn kernel=(100 * seed gross weight)/100-grain weight.
Corn ear seed investigating device of the present invention is provided with a plurality of corn ear microscope carriers, can carry out species test to a plurality of corn ears simultaneously, has greatly improved species test efficient.In addition, the background of corn ear microscope carrier is and the corn ear color color that there were significant differences, to reduce reflective aperture and shade, for the image that gathers is eliminated noise; Also be provided with the distortion correction district on the corn ear microscope carrier, to eliminate the pattern distortion away from the corn ear image of image acquisition units, improve the species test precision.
Description of drawings
Fig. 1 is the schematic diagram of corn ear seed investigating device of the present invention;
Fig. 2 is the stereogram of corn ear microscope carrier of the present invention;
Fig. 3 is the vertical view of corn ear microscope carrier of the present invention;
Fig. 4 is the schematic diagram of corn kernel microscope carrier of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but do not limit the scope of the invention.
As shown in Figure 1, the corn ear seed investigating device based on the control of crucial quality point of the present invention comprises shell 1, and 1 is provided with corn ear microscope carrier 2, industrial camera 4 and two LED light compensating lamps 5 and image processor (not shown) in the shell; A plurality of corn ear microscope carriers 2 shell 1 bottoms that are disposed in one line, industrial camera 4 is arranged on shell 1 top, be positioned at directly over a plurality of corn ear microscope carriers 2 places row's the middle part, its setting height(from bottom) and lateral attitude in shell 1 can be pre-set according to the quantity of shell 1 bottom corn ear microscope carrier 2, needs to guarantee that industrial camera 4 can photograph the corn ear to be measured on each corn ear microscope carrier 2; Two LED light compensating lamps 5 industrial camera 4 both sides that are placed in; Corn ear microscope carrier 2 is used for carrying and the corn ear to be measured of weighing; Industrial camera 4 is used for gathering the corn ear image to be measured on the corn ear microscope carrier 2; LED light compensating lamp 5 is used to the IMAQ illumination; Described graphics processing unit is for the corn ear image on each the corn ear microscope carrier 2 that receives and process industrial camera 4 collections; For the ease of distinguishing the corn ear to be measured on the loading surface, the loading surface color of corn ear microscope carrier 2 and corn ear color to be measured distinguish, and the noise data of the corn ear image of industrial camera 4 collections is reduced.Since fruit ear mainly by yellow, white, black, purple four kinds of colors with and combined colors form, require the objective table background color must be outside this; Analyze from the surround lighting aspect, be radiated on the fruit ear by LED light compensating lamp 5, can produce two kinds of noise datas: reflective aperture and shade, for reducing this two kinds of noises, should adopt shooting background cloth as the pallet background, the color combining requirement adopts navy blue shooting background cloth as the loading surface background.In addition, the present invention is for the consideration of species test efficient, be provided with a plurality of corn ear microscope carriers 2 in the seed investigating device, industrial camera 4 can gather the image of corn ear to be measured on each corn ear microscope carrier simultaneously, yet the fruit ear image away from the industrial camera 4 corn ear microscope carriers that industrial camera 4 collects can produce the pattern distortion effect, affect certainty of measurement, by the distortion correction district is set, for distortion correction provides the basis around corn ear microscope carrier 2.
When gathering image with ccd video camera, owing to be subjected to scenery object and ccd video camera three dimensions relative position relation, the impact of the factors such as optical lens distortion and ccd video camera quality, spatial relationship in the image of its collection between the pixel can change, namely image has produced geometric distortion or geometric distortion in IMAQ and measurement, with a standard pattern as uncalibrated image, collection contains the image of this standard calibration pattern and calculates the image picture elements number of this standard calibration pattern, because the real area of standard pattern is known, so can calculate the calibration coefficient (being length equivalent and the area equivalent of each pixel) in this position, utilize the length of standard calibration piece and width be an invariant as a comparison criterion image is carried out distortion correction, in the process of distortion correction, must settle the standard by edge detection method and calibrate the edge of piece, then could criterion calibrate the distortion degree that piece occurs in the image that gathers, wherein the accurate location of marginal position has a great impact high-acruracy survey image tool.The distortion correction district that arranges around the corn ear microscope carrier in this seed investigating device is the standard calibration piece.
Shown in Fig. 2 and 3, corn ear microscope carrier 2 is the rectangle pallet, and as the distortion correction object of reference, closed four edges 21 is set to ater with the four edges 21 of rectangle pallet in described distortion correction district, and the long limit that pallet is proofreaied and correct in definition is 30cm, and broadside is 10cm.Image for the single face collection, the fruit ear that gathers is very large in the face of the parameter impact, the more regular face of species test personnel selection carries out species test and measures, namely do not have large-area scarce grain, walk randomly, for being disposed across on the fruit ear pallet, can arbitrarily not move corn ear, at the fruit ear pallet four locating dowels 22 are installed, four locating dowels 22 are arranged on four jiaos on fruit ear pallet and centered by the weight sensor that arranges on the fruit ear pallet, the spacing that locating dowel is 22 is set so that corn ear is positioned at wherein according to the size of corn ear.
As shown in figs. 1 and 4, also be provided with the corn kernel microscope carrier 3 for carrying and the corn kernel of weighing in the shell 1, corn kernel microscope carrier 3 is positioned at the top of corn ear microscope carrier 2, this corn kernel microscope carrier 3 also is the rectangle pallet, corn kernel pallet 3 is hinged on shell one side inwall, when gathering the corn ear image, corn kernel pallet 3 can be dug, when gathering the corn kernel image, corn kernel pallet 3 is kept flat.Be provided with the standard seed in the corn kernel pallet and put district 32 and special-shaped seed mark zone 31, abnormity seed mark zone 31 can surround also by the black surround of four closures and can arrange by other means, generally the length of seed is greater than width, but opposite for some corn variety, put upside down the error that causes for fear of seed length and width index measurement, the special-shaped seed that the seed length and width are put upside down is put to special-shaped seed mark zone 31 in advance according to unified rule, namely laterally indulging to growing principle for seed for seed, can arbitrarily be placed in the standard seed for the seed of length and width standard and put and distinguish 32.
The image information imperfection that causes based on one-sided image and the boundary error that is caused by the multiaspect Image Mosaics, namely appear on two sides with delegation's seed, the capital causes the tassel row number scale error larger, the corn ear tassel row number is the characteristic of even number, has further amplified error coefficient, is the corn ear of 16 row for tassel row number, if there is error, minimum error is 2, and error rate is far longer than error effective range 3% up to 12.5%.Graphics processing unit of the present invention can utilize the error of model constrained method control tassel row number measurement index, and it is to utilize effective measurement index derivation tassel row number index.Measure fruit ear weight, cob weight according to weight sensor, thereby can obtain all kernel weights; The graphics processing unit image-based technique obtains row grain number, seed number easily.Measure the seed 100-grain weight by weight sensor; The so kernal number of corn ear (total grain number)=(100 * seed gross weight)/100-grain weight, so corncob line number=total grain number/row number.
Seed investigating device of the present invention can carry out species test to a plurality of corn ears simultaneously, and the several crucial quality point based on image technique and sensing technology corn seed investigating system species test measuring process is retrained control, guarantee that the species test process carries out under strict quality control, make all measurement parameters within error band.
Claims (10)
1. based on the corn ear seed investigating device of crucial quality point control, it is characterized in that, comprise a plurality of corn ear microscope carriers, image acquisition units, light filling unit and graphics processing unit; Described corn ear microscope carrier is used for carrying and the corn ear to be measured of weighing; Described image acquisition units is used for gathering the corn ear image to be measured on a plurality of corn ear microscope carriers; Described light filling unit is used to the IMAQ illumination; Described graphics processing unit is used for receiving and processing the corn ear image that described image acquisition units gathers; Loading surface color and the corn ear color of described corn ear microscope carrier distinguish, and the noise data of the corn ear image of image acquisition units collection is reduced, and also be provided with the distortion correction district around the corn ear microscope carrier.
2. corn ear seed investigating device according to claim 1, it is characterized in that, described a plurality of corn ear microscope carrier interval in one line arranges, described image acquisition units be arranged on described a plurality of corn ear microscope carriers middle part directly over, described corn ear microscope carrier is the rectangle pallet, and described distortion correction district is the black enclosure zone that is arranged on the rectangle pallet four edges.
3. corn ear seed investigating device according to claim 1 is characterized in that, the loading surface of described corn ear microscope carrier is provided with navy blue shooting background cloth.
4. corn ear seed investigating device according to claim 1 is characterized in that, described noise data is reflective aperture and shade.
5. corn ear seed investigating device according to claim 1 is characterized in that, the corn ear that also is provided with on the loading surface of described corn ear microscope carrier traverse on it carries out spacing positioner.
6. corn ear seed investigating device according to claim 5, it is characterized in that, described positioner is to be arranged on four jiaos of described corn ear microscope carriers and four locating dowels centered by the weight sensor that arranges on the corn ear microscope carrier, and the spacing between locating dowel is set so that corn ear is positioned at wherein according to the size of corn ear.
7. corn ear seed investigating device according to claim 1, it is characterized in that, described corn ear seed investigating device also is provided with the corn kernel microscope carrier for carrying and the corn kernel of weighing, described corn kernel microscope carrier is the rectangle pallet, is provided with the standard seed in this rectangle pallet and puts district and special-shaped seed mark zone.
8. corn ear seed investigating device according to claim 1, it is characterized in that described graphics processing unit can calculate according to the weight data of the image of image acquisition units collection and described corn ear microscope carrier and the collection of described corn kernel microscope carrier the basic proterties of corn ear.
9. corn ear seed investigating device according to claim 8, it is characterized in that the basic proterties of described corn ear comprises tassel row number, row grain number, grain number per spike, spike length, fringe diameter, prominent point length, cob length, cob diameter, fruit ear volume, cob volume, fringe weight, cob weight, seed coat color, seed length, seed width, seed is thick and 100-grain weight.
10. corn ear seed investigating device according to claim 9 is characterized in that, described tassel row number calculates by following formula:
Total number of corncob line number=corn kernel/row grain number, total number of corn kernel=(100 * seed gross weight)/100-grain weight.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103355026A (en) * | 2013-07-02 | 2013-10-23 | 北京农业信息技术研究中心 | High-throughput corn test production line device and method |
| CN108593548A (en) * | 2018-03-07 | 2018-09-28 | 四川杰莱美科技有限公司 | A kind of species test calibration pallet |
| CN111652156A (en) * | 2020-06-04 | 2020-09-11 | 杭州岚达科技有限公司 | Portable field maize species examination instrument |
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| US7123750B2 (en) * | 2002-01-29 | 2006-10-17 | Pioneer Hi-Bred International, Inc. | Automated plant analysis method, apparatus, and system using imaging technologies |
| CN101933417A (en) * | 2010-07-06 | 2011-01-05 | 北京农业智能装备技术研究中心 | Corn seed investigating device based on machine vision |
| US8031910B2 (en) * | 2003-09-17 | 2011-10-04 | Syngenta Participations Ag | Method and apparatus for analyzing quality traits of grain or seed |
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2013
- 2013-01-16 CN CN201310015524.3A patent/CN103053243B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123750B2 (en) * | 2002-01-29 | 2006-10-17 | Pioneer Hi-Bred International, Inc. | Automated plant analysis method, apparatus, and system using imaging technologies |
| US8031910B2 (en) * | 2003-09-17 | 2011-10-04 | Syngenta Participations Ag | Method and apparatus for analyzing quality traits of grain or seed |
| CN101933417A (en) * | 2010-07-06 | 2011-01-05 | 北京农业智能装备技术研究中心 | Corn seed investigating device based on machine vision |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103355026A (en) * | 2013-07-02 | 2013-10-23 | 北京农业信息技术研究中心 | High-throughput corn test production line device and method |
| CN103355026B (en) * | 2013-07-02 | 2014-09-03 | 北京农业信息技术研究中心 | High-throughput corn test production line device and method |
| CN108593548A (en) * | 2018-03-07 | 2018-09-28 | 四川杰莱美科技有限公司 | A kind of species test calibration pallet |
| CN111652156A (en) * | 2020-06-04 | 2020-09-11 | 杭州岚达科技有限公司 | Portable field maize species examination instrument |
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| CN103053243B (en) | 2014-05-07 |
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