CN107132245A - Crop root quick nondestructive three-dimensional reconstruction apparatus and method based on nmr imaging technique - Google Patents
Crop root quick nondestructive three-dimensional reconstruction apparatus and method based on nmr imaging technique Download PDFInfo
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- CN107132245A CN107132245A CN201710431090.3A CN201710431090A CN107132245A CN 107132245 A CN107132245 A CN 107132245A CN 201710431090 A CN201710431090 A CN 201710431090A CN 107132245 A CN107132245 A CN 107132245A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012258 culturing Methods 0.000 claims description 5
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002361 compost Substances 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 108090000723 Insulin-Like Growth Factor I Proteins 0.000 description 1
- 102000013275 Somatomedins Human genes 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 235000021231 nutrient uptake Nutrition 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002786 root growth Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/04—Indexing scheme for image data processing or generation, in general involving 3D image data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/08—Indexing scheme for image data processing or generation, in general involving all processing steps from image acquisition to 3D model generation
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Abstract
The present invention discloses a kind of crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique, including NMR imaging device；Described NMR imaging device includes apparatus main body, lifting platform provided with vertical lift in described device main body and with the synchronization-moving radio-frequency coil of the lifting platform and signal receiver；The entrance conveyor being connected respectively with the bottom and top of described device main body and output transmission belt are installed；And provided with a mechanical arm, for the crop sample being placed on crop sample in the entrance conveyor and on crawl output transmission belt；Also include a computer, receive the data of the signal receiver output, and generate crop root three-dimensional reconstruction image.Invention additionally discloses the crop root quick nondestructive three-dimensional rebuilding method realized using said apparatus.The present invention uses full-automatic operation, and efficiency high can quickly realize the extensive continuous detection of crop root.
Description
Technical field
The present invention relates to technical field of agricultural information, more particularly, to a kind of root of the crop based on nmr imaging technique
It is quick nondestructive three-dimensional reconstruction apparatus and method.
Background technology
Root system is the vitals that crop obtains various nutrients and moisture from somatomedin, due in plant growth medium
The distribution of various nutrients and moisture is typically highly uniform, and absorption of the crop to various nutrients and moisture depends on the sky of root system
Between distribution situation, such as corn, rape crop, its root void situation can effectively reflect its water and nutrient information.And root of the crop
System is mostly grown in soil, and soil is non-transparent medium again, and this research to crop root causes difficulty.Traditional root system
Research method includes mining method, soil drilling method, root room method, mini-rhizotron method and isotope method etc., has destructiveness mostly, can be to crop
Grow and bring certain influence.
Magnetic resonance imaging is made in object by applying the radio-frequency pulse of certain specific frequency to the object in magnetostatic field
Hydrogen Proton is activated and occurs electromagnetic induction phenomenon.After stop pulse, proton produces MR signals in relaxation process.By to MR
Signal carries out the processing such as data receiver, space encoding and image reconstruction, can carry out three-dimensional reconstruction to the space structure of object.Grind
Nmr phenomena can be produced by studying carefully the hydrogen atom in discovery, hydrone, and crop root moisture can be obtained using this phenomenon
The information of son distribution, so that crop root structure in accurate Drawing soil.Therefore, using nmr imaging technique, Ke Yishi
Now to the quick nondestructive three-dimensional reconstruction of crop root, effective reference is provided to crop root growth and nutrient uptake and utilization.
The content of the invention
It is an object of the invention to provide a kind of three-dimensional to crop root progress quick nondestructive using nmr imaging technique
Reconstructing device and method, to make up the deficiency of prior art.
The technical problems to be solved by the invention are：Traditional root system research method not only has destructiveness, and operation
Numerous and diverse, efficiency is low, it is difficult to large-scale continuous detection is carried out to crop root.Think that nuclear-magnetism is total to through analyzing and researching for a long time
The imaging technique that shakes can solve the above problems well, thus be necessary to design a kind of crop based on nmr imaging technique
Root system quick nondestructive three-dimensional reconstruction apparatus and method.
Concrete technical scheme of the present invention is as follows：
A kind of crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique, including nuclear magnetic resonance into
As device；
Described NMR imaging device includes the lifting platform provided with vertical lift in apparatus main body, described device main body
And with the synchronization-moving radio-frequency coil of the lifting platform and signal receiver；
The entrance conveyor being connected respectively with the bottom and top of described device main body and output transmission belt are installed；
And provided with a mechanical arm, for being placed in the entrance conveyor and capturing output transmission belt by crop sample
Crop sample；
Also include a computer, receive the data of the signal receiver output, and generate crop root three-dimensional reconstruction figure
Picture.
Wherein, main magnet is provided with described device main body, external magnetic field is provided for whole NMR imaging device.
As preferred, described device main body includes bucking coil, to balance what is brought by main magnet magnetic field inequality
Error.
As preferred, described device main body includes gradient coil, for producing uniform gradient magnetic.
It is connected as preferred, described radio-frequency coil with a radiofrequency launcher, for energy excitation, makes atomic nucleus by low
Energy level transition is to high level.
It is additionally operable to mark the putting position of crop sample as preferred, described computer, and controls described machinery
Arm is captured.
In the present invention, whole detection process is full-automatic, includes crawl, the in real time speed of service of conveyer belt, the inspection of sample
Visual feedback of measurement information etc., by computer program control.Realized automatically in addition, writing experimental arrangement using computer
Cycle detection, imaging data is automatically credited computer and carries out online data analysis.
According to described crop root quick nondestructive three-dimensional reconstruction apparatus, crop root quick nondestructive Three-dimensional Gravity of the invention
Construction method, including：
1) using the crop seedling in culturing room as sample, crop sample is placed into entrance conveyor using mechanical arm；
2) crop sample is conveyed using entrance conveyor to enter in the apparatus main body of NMR imaging device；
3) crop sample is gradually risen with lifting platform, and radio-frequency coil is moved upwardly together with sample, and transmits to pulse
Signal, signal receiver obtains data；
4) computer is connected with signal receiver, receives detection data in real time and generates crop root three-dimensional reconstruction image；
5) at the top of apparatus main body, crop sample is exported by output transmission belt, and culture is put back to by mechanical arm crawl
It is indoor.
As preferred, the control of compost volumetric water content is in 23-27% in the crop sample, to strengthen nuclear magnetic resonance
The signal intensity of imaging technique.
The present invention uses full-automatic operation, and efficiency high can quickly realize the extensive continuous detection of crop root.
Brief description of the drawings
Fig. 1 is the crop root quick nondestructive three-dimensional reconstruction apparatus figure based on nmr imaging technique；
Fig. 2 is apparatus main body operating diagram.
Embodiment
Describe the present invention in detail with reference to embodiment and accompanying drawing, but the present invention is not limited to this.
As shown in figure 1, the dress of the crop root quick nondestructive three-dimensional reconstruction based on nmr imaging technique in the present invention
Put including：Apparatus main body 1, radiofrequency launcher 2, computer 3, crop sample 4, exit conveyor 5, mechanical arm 6.Wherein, device
Main body 1 includes main magnet 11, bucking coil 12, signal receiver 13, radio-frequency coil 14, lifting platform 15, gradient coil 16 and defeated
Enter conveyer belt 17.
Mechanical arm 6 grabs works sample 4 in entrance conveyor 17, through entrance conveyor 17 by sample feeder master
In body 1.As shown in Fig. 2 apparatus main body 1 is by main magnet 11, bucking coil 12, radio-frequency coil 14, signal receiver 13, lifting platform
15 and gradient coil 16 constitute.Wherein, main magnet 11 provides external magnetic field for whole device, and bucking coil 12 is to balance because of main magnetic
The error that body magnetic field inequality is brought, gradient coil 16 can produce uniform gradient magnetic, and radio-frequency coil 14 swashs for energy
Hair, makes atomic nucleus transit to high level by low-lying level.After sample enters apparatus main body 1 of Magnetic resonance imaging, crop sample 4
Gradually rise on lifting platform and therewith, radiofrequency launcher 2 is moved upwardly together with sample, and transmit to pulse signal,
Signal receiver obtains data in opposite side.Data handling machine 3 is connected with signal receiver 13, real-time detector data warp
After computer programs process can in-time generatin crop root three-dimensional reconstruction image, according to the length of the previous detection time of sample 4, meter
Calculation machine 3 can automatically adjust the speed of exit conveyor 5 and entrance conveyor 17, in good time by another sample feeder main body 1, make
Thing sample 4 is finally transferred in culturing room by mechanical arm 6.
The above-mentioned specific detection method bag of crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique
Include following steps：
1) using the crop seedling in the unified sample cultivated as sample, sample is placed on conveyer belt using mechanical arm；
2) using input transmission belt make crop sample enter Magnetic resonance imaging apparatus main body in, according to previous sample examine
The length of survey time, can automatically adjust the speed of entrance conveyor；
3) after sample enters apparatus main body, sample is located on lifting platform and gradually risen therewith, and radio-frequency coil is with sample
Move upwardly together, and transmit to pulse signal, signal receiver obtains data.
4) data handling machine is connected with signal receiver, and real-time detector data can be instant after being handled through computer program
Generate crop root condition diagram picture；
5) computer is by controlling line speed, by another sample feeder main body, and sample is finally turned by mechanical arm
Move in culturing room.
6) repeat step 1)~step 5), you can realize the quick nondestructive three-dimensional reconstruction to crop root.
The foregoing is only the preferable implementation example of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique, including Magnetic resonance imaging
Device, it is characterised in that：
Described NMR imaging device includes apparatus main body, lifting platform provided with vertical lift in described device main body and
With the synchronization-moving radio-frequency coil of the lifting platform and signal receiver；
The entrance conveyor being connected respectively with the bottom and top of described device main body and output transmission belt are installed；
And provided with a mechanical arm, for the work being placed on crop sample in the entrance conveyor and on crawl output transmission belt
Thing sample；
Also include a computer, receive the data of the signal receiver output, and generate crop root three-dimensional reconstruction image.
2. crop root quick nondestructive three-dimensional reconstruction apparatus as claimed in claim 1, it is characterised in that in described device main body
Provided with main magnet, external magnetic field is provided for whole NMR imaging device.
3. crop root quick nondestructive three-dimensional reconstruction apparatus as claimed in claim 2, it is characterised in that described device main body bag
Containing bucking coil, to balance because of the error that main magnet magnetic field inequality is brought.
4. crop root quick nondestructive three-dimensional reconstruction apparatus as claimed in claim 3, it is characterised in that described device main body bag
Containing gradient coil, for producing uniform gradient magnetic.
5. crop root quick nondestructive three-dimensional reconstruction apparatus as claimed in claim 1, it is characterised in that described radio-frequency coil
It is connected with a radiofrequency launcher, for energy excitation, atomic nucleus is transitted to high level by low-lying level.
6. crop root quick nondestructive three-dimensional reconstruction apparatus as claimed in claim 1, it is characterised in that described computer is also
Putting position for marking crop sample, and control described mechanical arm crawl.
7. a kind of crop root based on any one of the claim 1~6 crop root quick nondestructive three-dimensional reconstruction apparatus is fast
The lossless three-dimensional rebuilding method of speed, it is characterised in that including：
1) using the crop seedling in culturing room as sample, crop sample is placed into entrance conveyor using mechanical arm；
2) crop sample is conveyed using entrance conveyor to enter in the apparatus main body of NMR imaging device；
3) crop sample is gradually risen with lifting platform, and radio-frequency coil is moved upwardly together with sample, and transmits to pulse signal,
Signal receiver obtains data；
4) computer is connected with signal receiver, receives detection data in real time and generates crop root three-dimensional reconstruction image；
5) at the top of apparatus main body, crop sample is exported by output transmission belt, and put back to by mechanical arm crawl in culturing room.
8. crop root quick nondestructive three-dimensional rebuilding method as claimed in claim 7, it is characterised in that in the crop sample
Compost volumetric water content is controlled in 23-27%.
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| CN201710431090.3A CN107132245A (en) | 2017-06-06 | 2017-06-06 | Crop root quick nondestructive three-dimensional reconstruction apparatus and method based on nmr imaging technique |
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| CN201710431090.3A CN107132245A (en) | 2017-06-06 | 2017-06-06 | Crop root quick nondestructive three-dimensional reconstruction apparatus and method based on nmr imaging technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389718A (en) * | 2017-06-06 | 2017-11-24 | 浙江大学 | A kind of celery cabbage clubroot early stage Rapid non-destructive testing device based on nmr imaging technique |
| WO2021130006A1 (en) * | 2019-12-23 | 2021-07-01 | Robert Bosch Gmbh | Detection device for a conveying system |
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|---|---|---|---|---|
| CN101297211A (en) * | 2005-10-28 | 2008-10-29 | 皇家飞利浦电子股份有限公司 | Non-cylindrical RF coil for MRI |
| CN103983798A (en) * | 2014-05-27 | 2014-08-13 | 北京农业信息技术研究中心 | Crop detecting system |
| CN106447782A (en) * | 2016-08-02 | 2017-02-22 | 浙江工业大学 | Face skin three-dimensional reconstruction method based on nuclear magnetic resonance image |
| CN207215735U (en) * | 2017-06-06 | 2018-04-10 | 浙江大学 | Crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique |
-
2017
- 2017-06-06 CN CN201710431090.3A patent/CN107132245A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297211A (en) * | 2005-10-28 | 2008-10-29 | 皇家飞利浦电子股份有限公司 | Non-cylindrical RF coil for MRI |
| CN103983798A (en) * | 2014-05-27 | 2014-08-13 | 北京农业信息技术研究中心 | Crop detecting system |
| CN106447782A (en) * | 2016-08-02 | 2017-02-22 | 浙江工业大学 | Face skin three-dimensional reconstruction method based on nuclear magnetic resonance image |
| CN207215735U (en) * | 2017-06-06 | 2018-04-10 | 浙江大学 | Crop root quick nondestructive three-dimensional reconstruction apparatus based on nmr imaging technique |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389718A (en) * | 2017-06-06 | 2017-11-24 | 浙江大学 | A kind of celery cabbage clubroot early stage Rapid non-destructive testing device based on nmr imaging technique |
| WO2021130006A1 (en) * | 2019-12-23 | 2021-07-01 | Robert Bosch Gmbh | Detection device for a conveying system |
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