CN103053243B - 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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- CN103053243B CN103053243B CN201310015524.3A CN201310015524A CN103053243B CN 103053243 B CN103053243 B CN 103053243B CN 201310015524 A CN201310015524 A CN 201310015524A CN 103053243 B CN103053243 B CN 103053243B
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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 corn seed investigating technical field, espespecially a kind of corn ear seed investigating device based on crucial quality point control.
Background technology
Corn scientific research personnel in order to set up corn resources storehouse, carry out the experiment of corn assistant breeding, wherein an important link is to the obtaining of corn ear material proterties, 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.Under normal circumstances, carry out Maize Sciences experiment, need to carry out species test to the corn ear material of up to ten thousand parts.Need the corn material quantity of species test, the index number that measure and the requirement to index precision, making 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 seed investigating device species test.For small-scale species test, generally take artificial species test as main, but artificial species test has a lot of drawbacks, as: measuring process cannot be monitored, species test index too many, species test operation is numerous and diverse, cost of labor is too high, species test standard disunity etc.For extensive species test, corn scientific research personnel generally selects seed investigating device species test.Corn ear seed investigating device is to utilize Digital image technology and sensor technology to measure the each index of corn ear.By camera collection corn ear, cob, seed view data, by image processing techniques, measure morphological index, by weight sensor equipment, obtain weight indicator.
Along with carrying out of the large area scientific experiments such as corn inbred line experiment, corn hybridization experiment, make corn variety various, come in every shape, with color, dividing has yellow maize, white maize, yellowish-white corn, jet rice, Qarnet rice, mixes kernel corn (yellow, white, black, purple combination); Corn ear size is also not quite similar, and the shortest have a 5cm left and right, the longest 50cm that truly has; In addition, the regularity of corn ear is also not quite similar, and the seed on inbred line kind corn ear is mainly with mixed and disorderly distribution.Thereby propose higher requirement to machine species test Machine Design and image calculation algorithm.
At present, the seed investigating device based on image does not have universality to the crucial quality point control in species test, and the putting position of color, size, regularity and the fruit ear of fruit ear all can restrict the species test precision of seed investigating device.Meanwhile, be subject to illumination effect and the collection background noise that produces, by putting arbitrarily, the pattern distortion producing causes tassel row number to be out of one's reckoning by the imperfect information that gathers image and all to the species test measurement based on image, brings error.In addition, the existing seed investigating device based on image generally can only carry out species test to a corn ear, and species test efficiency is low.
Summary of the invention
The problem existing for prior art, the object of the present invention is to provide a kind of corn ear seed investigating device that can simultaneously improve species test efficiency 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 multiple corn ear microscope carriers, image acquisition units, light filling unit and graphics processing unit; Described corn ear microscope carrier is for carrying and weigh corn ear to be measured; Described image acquisition units is for gathering the corn ear image to be measured on multiple corn ear microscope carriers; Described light filling unit is used to IMAQ illumination; The corn ear image that described graphics processing unit gathers for receiving and process described image acquisition units; 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 corn ear microscope carrier surrounding are also provided with distortion correction district.
Further, multiple described corn ear microscope carriers interval in one line arranges, described image acquisition units be arranged on described multiple corn ear microscope carriers middle part directly over, described corn ear microscope carrier is rectangle pallet, and described distortion correction district is the black enclosure region being arranged on 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, on the loading surface of described corn ear microscope carrier, be also provided with the corn ear of traverse on it is carried out to spacing positioner.
Further, described positioner be arranged on four jiaos of described corn ear microscope carriers and the weight sensor that arranges on corn ear microscope carrier centered by four locating dowels, 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 is also provided with for carrying and the corn kernel microscope carrier of the corn kernel of weighing, and described corn kernel microscope carrier is rectangle pallet, is provided with standard seed and puts district and special-shaped seed mark zone in this rectangle pallet.
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 the thick and 100-grain weight of 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 weight, cob weight, seed coat color, seed length, seed width, seed.
Further, described tassel row number calculates by following formula:
Total number/row grain number of corncob line number=corn kernel, total number=(100 × seed gross weight)/100-grain weight of corn kernel.
Corn ear seed investigating device of the present invention is provided with multiple corn ear microscope carriers, can to multiple corn ears, carry out species test simultaneously, has greatly improved species test efficiency.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 gathering is eliminated noise; On corn ear microscope carrier, be also provided with distortion correction district, to eliminate the pattern distortion away from the corn ear image of image acquisition units, improve species test precision.
Accompanying drawing explanation
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 illustrating 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 crucial quality point control 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 shell; Multiple corn ear microscope carriers 2 shell 1 bottom that is disposed in one line, industrial camera 4 is arranged on shell 1 top, be positioned at directly over multiple corn ear microscope carrier 2 place rows' 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, need 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 for carrying and weigh corn ear to be measured; Industrial camera 4 is for gathering the corn ear image to be measured on corn ear microscope carrier 2; LED light compensating lamp 5 is used to IMAQ illumination; Described graphics processing unit is for receiving and process the corn ear image on each corn ear microscope carrier 2 that industrial camera 4 gathers; For the ease of distinguishing the corn ear to be measured on loading surface, the loading surface color of corn ear microscope carrier 2 and corn ear color to be measured distinguish, and make the noise data minimizing of the corn ear image that industrial camera 4 gathers.Due to 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; From surround lighting aspect, analyze, by LED light compensating lamp 5, be radiated on fruit ear, can produce two kinds of noise datas: reflective aperture and shade, for reducing this two kinds of noises, should adopt shooting background cloth as pallet background, color combining requirement, adopts navy blue shooting background cloth as loading surface background.In addition, the present invention is for the consideration of species test efficiency, in seed investigating device, be provided with multiple corn ear microscope carriers 2, industrial camera 4 can gather the image of corn ear to be measured on each corn ear microscope carrier simultaneously, but the fruit ear image away from industrial camera 4 corn ear microscope carriers that industrial camera 4 collects can produce pattern distortion effect, affect certainty of measurement, by corn ear microscope carrier 2 surroundings, distortion correction district being set, for distortion correction provides basis.
When gathering image with ccd video camera, owing to being subject 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 pixel can change, in IMAQ and measurement, image has produced geometric distortion or geometric distortion, with a standard pattern as uncalibrated image, gather the image that contains this standard calibration pattern the image picture elements number that calculates this standard calibration pattern, because the real area of standard pattern is known, therefore 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 to distortion correction, in the process of distortion correction, must settle the standard and calibrate the edge of piece by edge detection method, then could criterion calibrate the distortion degree that piece occurs in gathered image, wherein the accurate location of marginal position has a great impact high-acruracy survey image tool.In this seed investigating device, the distortion correction district of corn ear microscope carrier surrounding setting is standard calibration piece.
As shown in Figures 2 and 3, corn ear microscope carrier 2 is rectangle pallet, and described distortion correction district is using the four edges 21 of rectangle pallet as distortion correction object of reference, and closed four edges 21 is set to ater, and the long limit that pallet is proofreaied and correct in definition is 30cm, and broadside is 10cm.The image gathering for one side, it is very large that the fruit ear gathering is faced parameter impact, the more regular face of species test personnel selection carries out species test measurement, there is no large-area scarce grain, walk randomly, for being disposed across on fruit ear pallet, can arbitrarily not move corn ear, four locating dowels 22 are installed on fruit ear pallet, four locating dowels 22 be arranged on four jiaos, fruit ear pallet and the weight sensor that arranges on fruit ear pallet centered by, 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, in shell 1, be also provided with for carrying and the corn kernel microscope carrier 3 of the corn kernel of weighing, corn kernel microscope carrier 3 is positioned at the top of corn ear microscope carrier 2, this corn kernel microscope carrier 3 is also rectangle pallet, corn kernel pallet 3 is hinged on shell one side inwall, when gathering corn ear image, corn kernel pallet 3 can be dug, when gathering corn kernel image, corn kernel pallet 3 is kept flat.In corn kernel pallet, be provided with standard seed and put district 32 and special-shaped seed mark zone 31, abnormity seed mark zone 31 can be surrounded also and can be arranged by other means by four closed black surrounds, the length of seed is greater than width under normal circumstances, but contrary for some corn variety, for fear of seed length and width index measurement, put upside down the error causing, the special-shaped seed that seed length and width are put upside down is put to special-shaped seed mark zone 31 in advance according to unified rule, take laterally as seed is indulged to as the long principle of seed, for the seed of length and width standard, can arbitrarily be placed in standard seed and put district 32.
The image information imperfection causing based on one-sided image and the boundary error being caused by multiaspect Image Mosaics, with a line seed, appear on two sides, capital causes tassel row number scale error larger, 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, up to 12.5%, is far longer than error effective range 3%.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.According to weight sensor, measure fruit ear weight, cob weight, thereby can obtain all kernel weights; The technology of graphics processing unit based on image easily obtained row grain number, seed number.By weight sensor, measure seed 100-grain weight; The kernal number of corn ear (total grain number)=(100 × seed gross weight)/100-grain weight so, corncob line number so=total grain number/row grain number.
Seed investigating device of the present invention can carry out species test to multiple 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 to control, guarantee that species test process carries out under strict quality control, make all measurement parameters within error band.
Claims (9)
1. the corn ear seed investigating device based on crucial quality point control, is characterized in that, comprises multiple corn ear microscope carriers, image acquisition units, light filling unit and graphics processing unit; Described corn ear microscope carrier is for carrying and weigh corn ear to be measured; Described image acquisition units is for gathering the corn ear image to be measured on multiple corn ear microscope carriers; Described light filling unit is used to IMAQ illumination; The corn ear image that described graphics processing unit gathers for receiving and process described image acquisition units; 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 corn ear microscope carrier surrounding are also provided with distortion correction district;
Described multiple corn ear microscope carrier interval in one line arranges, described image acquisition units be arranged on described multiple corn ear microscope carriers middle part directly over, described corn ear microscope carrier is rectangle pallet, and described distortion correction district is the black enclosure region being arranged on rectangle pallet four edges.
2. 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.
3. corn ear seed investigating device according to claim 1, is characterized in that, described noise data is reflective aperture and shade.
4. corn ear seed investigating device according to claim 1, is characterized in that, on the loading surface of described corn ear microscope carrier, is also provided with the corn ear of traverse on it is carried out to spacing positioner.
5. corn ear seed investigating device according to claim 4, it is characterized in that, described positioner be arranged on four jiaos of described corn ear microscope carriers and the weight sensor that arranges on corn ear microscope carrier centered by four locating dowels, the spacing between locating dowel is set so that corn ear is positioned at wherein according to the size of corn ear.
6. corn ear seed investigating device according to claim 1, it is characterized in that, described corn ear seed investigating device is also provided with for carrying and the corn kernel microscope carrier of the corn kernel of weighing, described corn kernel microscope carrier is rectangle pallet, is provided with standard seed and puts district and special-shaped seed mark zone in this rectangle pallet.
7. 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.
8. corn ear seed investigating device according to claim 7, it is characterized in that, the basic proterties of described corn ear comprises the thick and 100-grain weight of 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 weight, cob weight, seed coat color, seed length, seed width, seed.
9. corn ear seed investigating device according to claim 8, is characterized in that, described tassel row number calculates by following formula:
Total number/row grain number of corncob line number=corn kernel, total number=(100 × seed gross weight)/100-grain weight of corn kernel.
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| 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 |
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 |
| 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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| 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 |
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