CN108051459A - A kind of Micro-CT scanning Multi-example test processing method - Google Patents
A kind of Micro-CT scanning Multi-example test processing method Download PDFInfo
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- CN108051459A CN108051459A CN201711281008.XA CN201711281008A CN108051459A CN 108051459 A CN108051459 A CN 108051459A CN 201711281008 A CN201711281008 A CN 201711281008A CN 108051459 A CN108051459 A CN 108051459A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/401—Imaging image processing
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Abstract
The present invention is a kind of Micro-CT scanning Multi-example test processing method, it is characterized in that the little several samples of physical property difference are put on a specimen holder by this method is carried out at the same time scanning, run-down obtains the sequence fluoroscopy images of multiple samples, then the sequence fluoroscopy images comprising multiple sample messages are carried out with three-dimensionalreconstruction and digital slicing treatment, obtain the sequence cross-sectional image of multiple samples together, the cross-sectional image of each sample is individually extracted by image segmentation software again, individually composition sequence image carries out the analysis and processing of next step.The present invention can greatly improve testing efficiency, and not influence picture quality.
Description
Technical field
The present invention relates to a kind of sample test processing methods, and in particular to a kind of Micro-CT scanning Multi-example test processing method.
Background technology
Micro-CT scanning（Micro-Computed Tomography）, it is also referred to as X-ray microfault photography.Refer to space point
Resolution can reach the CT of lum or so.The main composition of Micro-CT scanning includes X radiographic sources, specimen rotating holder and high-resolution and visits
Survey three parts of device.X-ray source and detector are fixed, and sample rotates between X radiographic sources and detector, are connected by X radiographic sources
The continuous X beams for generating taper penetrate sample to be tested, are imaged on X-ray detector.By rate at an angle to sample
Product are rotated, and obtain x-ray perspective view of the sample in different angle.By corresponding computer software, by each angle
Projected image be reconstructed, be reduced into the analyzable 3D rendering in computer.The image resolution ratio of Micro-CT scanning is high, image clearly
Degree requirement is also high, in order to reach higher resolution and accuracy, it is necessary to adjust tube current, voltage and focus voltage repeatedly, often
A angle all gathers multiple images and carries out image co-registration and correction, so the parameter testing of Micro-CT scanning and image acquisition time are all very
It is long.In daily microscopic CT scanning analysis, if only making a sample every time, scan efficiency is very low, frequently switch on ray with
Sample door, it is also bigger to the loss of instrument.So in order to save the time, testing efficiency is improved, is badly in need of finding a kind of micro-
CT is efficiently tested and processing method.
The content of the invention
The present invention provides a kind of Micro-CT scanning Multi-example test processing method, several samples of this method by physical property difference less
It is put on a specimen holder and is carried out at the same time scanning, run-down obtains the sequence fluoroscopy images of multiple samples, then to comprising more
The sequence fluoroscopy images of a sample message carry out three-dimensionalreconstruction and digital slicing treatment, obtain the sequence of multiple samples together and cut
The cross-sectional image of each sample further by image segmentation software is individually extracted, individually forms sequence by face image
Row image carries out the analysis and processing of next step.It is as follows：
1. testing needs according to Micro-CT scanning, multiple samples are processed into suitable size, concentration is put on Micro-CT scanning specimen holder, sample
Between leave appropriate gap or separated with materials of low density；
2. multiple samples made from step 1 are put into Micro-CT scanning, test scanning is carried out, it is saturating to obtain the sequence of multiple samples together
Visible image；
3. the sequence fluoroscopy images that step 2 obtains are carried out three-dimensionalreconstruction and digital slicing treatment by reconstruction software, obtain more
The sequence cross-sectional image of a sample together；
4. the cross-sectional image of each sample is individually extracted from the cross-sectional image that step 3 obtains by image segmentation software
Come, the cross-sectional image of each sample is individually composed sequence image；
5. the sequence cross-sectional image of pair each sample carries out three-dimensionalreconstruction, independent three-dimensionalreconstruction body is obtained.
Advantageous effect
The present invention several samples little to physical property difference are carried out at the same time scanning, once obtain the sequence perspective view of multiple samples
Picture then by Digital Image Processing, obtains the section sequence image of each sample, testing efficiency is greatly improved, due to selected
Sample physical property difference is little, and to the absorption coefficient of X-ray, also difference is little, and gap or lightweight partage are also left between sample,
So not influenced mutually between sample, picture quality is higher.
Description of the drawings：
Fig. 1 is the sequence fluoroscopy images obtained in embodiment 1（Wherein one）
Fig. 2 is the sequence cross-sectional image obtained in embodiment 1（Wherein one）
Fig. 3 is that image splits schematic diagram in embodiment 1（It is partitioned into a sample in cross section）
Fig. 4 is the three-dimensionalreconstruction body of a sample independence in embodiment 1（Packaging carton）
Fig. 5 is the sequence fluoroscopy images obtained in embodiment 2（Wherein one）
Fig. 6 is the sequence cross-sectional image obtained in embodiment 2（Wherein one）
Fig. 7 is the cross-sectional image of one of sample after image segmentation in embodiment 2
Fig. 8 is the three-dimensionalreconstruction body of a sample independence in embodiment 2（Ox-hide crust leather）
Specific embodiment
The present invention is further elaborated with reference to embodiment, but institute's protection domain of the present invention is without being limited thereto.
Specific embodiment 1
The embodiment of the present invention provides a kind of Micro-CT scanning to 5 pattern product while test processing method, and this method will be to five kinds of samples
It is put on a specimen holder and is carried out at the same time scanning, run-down obtains the sequence fluoroscopy images of 5 samples, and then sequence is had an X-rayed
Image carries out three-dimensionalreconstruction and digital slicing treatment, obtains the sequence cross-sectional image of 5 samples together, further passes through image
Segmentation software individually extracts the cross-sectional image of each sample, individually composition sequence image, carries out point of next step
Analysis and processing.5 pattern product are common print paper, newspaper, toilet paper, rice paper and packaging carton, resolution requirement 700nm,
It is as follows：
1. testing needs according to Micro-CT scanning, 5 samples are processed into the sample of about 3mm*5mm sizes, pass through the U.S. between sample
Parafilm M paraffinic base sealed membranes are separated, are put into vertically together on Micro-CT scanning specimen holder；
2. 5 pattern product made from step 1 are put into Micro-CT scanning, test scanning is carried out, it is saturating to obtain the sequence of 5 samples together
Visible image, wherein one as shown in Figure 1；
3. the sequence fluoroscopy images that step 2 obtains are carried out three-dimensionalreconstruction and digital slicing treatment by reconstruction software, 5 are obtained
The sequence cross-sectional image of a sample together, wherein one as shown in Figure 2；
4. the cross-sectional image of each pattern product is individually extracted from the cross-sectional image that step 3 obtains by image segmentation software
Come, the cross-sectional image of each sample is individually composed sequence image, and software segmentation interface is as shown in Figure 3；
5. the sequence cross-sectional image of pair each pattern product carries out three-dimensionalreconstruction, independent three-dimensionalreconstruction body, one of sample are obtained
The three-dimensionalreconstruction body of product is as shown in Figure 4.
Sample made from above method is put into after being scanned on Micro-CT scanning, obtains the sequence cross-sectional image of 5 samples, wherein
One cross-sectional image is as shown in Figure 2.It can be seen that the clear internal structure of 5 kinds of paper, each sample are contained in a pictures
Between due to there is the isolation of sealed membrane, can clearly distinguish between each other, and the absorption of sealed membrane is very weak, can pass through
Image procossing is omitted.
Specific embodiment 2
The embodiment of the present invention provides a kind of Micro-CT scanning to 3 leather samples test processing method simultaneously, and this method is by three samples
It is put on a specimen holder and is carried out at the same time scanning, run-down obtains the sequence fluoroscopy images of 3 samples, and then sequence is had an X-rayed
Image carries out three-dimensionalreconstruction and digital slicing treatment, obtains the sequence cross-sectional image of 3 samples together, further passes through image
Segmentation software individually extracts the cross-sectional image of each sample, individually composition sequence image, carries out point of next step
Analysis and processing.3 leather samples are ox-hide crust leather, red resultant Leather and black resultant Leather, resolution requirement are 1.5 μm, specifically
Step is as follows：
1. testing needs according to Micro-CT scanning, 3 samples are processed into the sample of about 4mm*3mm*5mm sizes, are put into together micro-
On CT specimen holders, it is ensured that gap is left between sample, sample does not contact each other；
2. sample made from step 1 is put into Micro-CT scanning, test scanning is carried out, obtains the sequence perspective view of 3 samples together
Picture, wherein one as shown in Figure 5；
3. the sequence fluoroscopy images that step 2 obtains are carried out three-dimensionalreconstruction and digital slicing treatment by reconstruction software, 3 are obtained
The sequence cross-sectional image of a sample together, wherein one as shown in Figure 6；
4. the cross-sectional image of each leather sample is individually extracted from the cross-sectional image that step 3 obtains by image segmentation software
Out, the cross-sectional image of each sample is individually composed sequence image, and a cross-sectional image of one of sample is as shown in Figure 7；
5. the sequence cross-sectional image of pair each sample carries out three-dimensionalreconstruction, independent three-dimensionalreconstruction body, one of sample are obtained
Three-dimensionalreconstruction body it is as shown in Figure 8.
Above example is merely to illustrate the present invention and is used rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalent
Technical solution should also belong to scope of the invention, should be limited by each claim.
Claims (2)
1. a kind of Micro-CT scanning Multi-example test processing method, it is characterised in that this method puts the little several samples of physical property difference
Scanning is carried out at the same time on to a specimen holder, run-down obtains the sequence fluoroscopy images of multiple samples, then to comprising multiple
The sequence fluoroscopy images of sample message carry out three-dimensionalreconstruction and digital slicing treatment, obtain the sequence section of multiple samples together
Image, then individually extracted the cross-sectional image of each sample by image segmentation software, individually composition sequence image,
Carry out the analysis and processing of next step.
2. a kind of Micro-CT scanning Multi-example test processing method as described in claim 1, which is characterized in that be as follows：
Step 1. tests needs according to Micro-CT scanning, multiple samples is processed into suitable size, concentration is put into Micro-CT scanning specimen holder
On, appropriate gap or separated with materials of low density is left between sample；
Multiple samples made from step 1 are put into Micro-CT scanning by step 2., carry out test scanning, obtain multiple samples together
Sequence fluoroscopy images；
The sequence fluoroscopy images that step 2 obtains are carried out three-dimensionalreconstruction and digital slicing treatment by step 3. by reconstruction software, are obtained
To the sequence cross-sectional image of multiple samples together；
Step 4. is individually carried the cross-sectional image of each sample from the cross-sectional image that step 3 obtains by image segmentation software
It takes out, the cross-sectional image of each sample is individually composed sequence image；
Step 5. carries out three-dimensionalreconstruction to the sequence cross-sectional image of each sample, obtains independent three-dimensionalreconstruction body.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113470185A (en) * | 2021-06-28 | 2021-10-01 | 平湖莱顿光学仪器制造有限公司 | Method and equipment for presenting three-dimensional microscopic image |
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| CN104792804A (en) * | 2015-03-27 | 2015-07-22 | 江苏大学 | Method for diagnosing internal damage of cereal grains based on micro-CT (computed tomography) technology |
| CN105466921A (en) * | 2015-11-23 | 2016-04-06 | 北京普析通用仪器有限责任公司 | Simultaneous detection method of many samples |
| CN105785462A (en) * | 2014-06-25 | 2016-07-20 | 同方威视技术股份有限公司 | Method for locating target in three-dimensional CT image and security check CT system |
| CN106503121A (en) * | 2016-10-19 | 2017-03-15 | 公安部第三研究所 | A kind of description method of X-ray safety check image and system |
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Patent Citations (6)
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| US7170966B2 (en) * | 2003-08-05 | 2007-01-30 | Gioietta Kuo-Petravic | Practical implementation of a CT cone beam algorithm for 3-D image reconstruction as applied to nondestructive inspection of baggage, live laboratory animal and any solid materials |
| CN101819679A (en) * | 2010-04-19 | 2010-09-01 | 李楚雅 | Three-dimensional medical image segmentation method |
| CN105785462A (en) * | 2014-06-25 | 2016-07-20 | 同方威视技术股份有限公司 | Method for locating target in three-dimensional CT image and security check CT system |
| CN104792804A (en) * | 2015-03-27 | 2015-07-22 | 江苏大学 | Method for diagnosing internal damage of cereal grains based on micro-CT (computed tomography) technology |
| CN105466921A (en) * | 2015-11-23 | 2016-04-06 | 北京普析通用仪器有限责任公司 | Simultaneous detection method of many samples |
| CN106503121A (en) * | 2016-10-19 | 2017-03-15 | 公安部第三研究所 | A kind of description method of X-ray safety check image and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113470185A (en) * | 2021-06-28 | 2021-10-01 | 平湖莱顿光学仪器制造有限公司 | Method and equipment for presenting three-dimensional microscopic image |
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