CN110322501A - A kind of three-dimensionalreconstruction model building method divided based on X-CT and figure - Google Patents
A kind of three-dimensionalreconstruction model building method divided based on X-CT and figure Download PDFInfo
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- CN110322501A CN110322501A CN201910589004.0A CN201910589004A CN110322501A CN 110322501 A CN110322501 A CN 110322501A CN 201910589004 A CN201910589004 A CN 201910589004A CN 110322501 A CN110322501 A CN 110322501A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002591 computed tomography Methods 0.000 claims abstract description 5
- 230000011218 segmentation Effects 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 13
- 239000003245 coal Substances 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 4
- 238000003709 image segmentation Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
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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
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/55—Depth or shape recovery from multiple images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
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- Computer Vision & Pattern Recognition (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention provides it is a kind of new based on P- wave velocity of wave, X-CT scanning, Three Dimensional Reconfiguration, figure cutting techniques three-dimensionalreconstruction model meshes construction method, lead to bring error without representativeness, three-dimensionalreconstruction sample model internal structure inconsistency for solving use X-CT scanning, Three Dimensional Reconfiguration to construct in the method based on authentic sample X-CT scanned sample in the past.The present invention screens X-CT scanned sample by P- wave velocity of wave, carries out X-CT scanning to choose aliquot part；Later, with image Segmentation Technology, volume of sample after reconstruct is split, and then obtains greater number of three-dimensionalreconstruction model meshes, leads to bring error to solve X-CT scanned sample and not have representative, three-dimensionalreconstruction sample model internal structure inconsistency.
Description
Technical field
The present invention relates to a kind of three-dimensionalreconstruction model meshes constructing technologies based on X-CT scanning and figure cutting techniques
Numerical model modeling method.
Background technique
X-CT (Computerized Tomography), i.e. X ray computer Tomography technology, are a kind of nothings
Detection means is damaged, article internal structure distribution characteristics can be obtained in the case where not damaging article internal structure.Numerical value point
Analysis is the important supplement to laboratory test and on-the-spot test means, which solve the not reproducible problem of Rock Mechanics Test,
It eliminates because of specimen size, the inconsistent bring error of mechanical property, compensates for the limitation of research method, and saved experiment
Research cost and time.Therefore, in rock mechanics field, by X-CT scanning technique and numerical simulation means in conjunction with and the number that generates
Value analogy method is just becoming more and more extensive.
In rock mechanics field, the numerical simulation side of the three-dimensionalreconstruction model meshes constructing technology based on X-CT scanning technique
The usual form of expression of method are as follows: firstly, the coal obtained according to X-CT scanning, rock sample inner structural features, in conjunction with computer technology,
To coal, rock sample internal structure is reconstructed and grid dividing, establishes the three-dimensionalreconstruction based on true coal, rock sample internal structure
Model meshes；Later, the coal scanned to X-CT, rock sample carry out mechanical test；After the completion, mechanical test result pair is reapplied
The three-dimensionalreconstruction model meshes obtained after reconstruct are verified；Finally, carrying out it using the three-dimensionalreconstruction model meshes after verifying
He studies.
Three-dimensionalreconstruction model meshes constructing technology and method for numerical simulation based on X-CT technology were solved according to day in the past
The problem of right coal, rock internal structure establish numerical model, for providing convenience property of problem in science of analyzing and researching.But the shape of coal, rock
It determines that it is internal with natural heterogeneity at process, there is coal, rock sample internal structure and mechanical property significant
Otherness.And X-CT scanning costly, in research carries out X-CT scanned sample quantity every time and is extremely limited (general 1 in reality
To 2).Since X-CT scans and constructs the finiteness of three-dimensionalreconstruction model sample quantities, significant difference between coal, rock sample
Property, it selects under-represented coal sample to carry out the modeling of three-dimensionalreconstruction model sample, certain error can be brought to researching and analysing；Together
When, the finiteness of three-dimensionalreconstruction model sample quantities also prevents result of study from caused by balancing sample internal structure otherness
Error.Therefore, under the two collective effect, the three-dimensionalreconstruction modeling method based on X-CT technology will affect result of study in the past
Accuracy.Therefore it is necessary to be improved to the technology so that the research method is more representative, research achievement accuracy more
It is high.
Summary of the invention
The present invention screens X-CT scanned sample by using P- wave velocity of wave, carries out X-CT to choose aliquot part
Scanning；Later, with image Segmentation Technology, volume of sample after reconstruct is split, to obtain greater number of three-dimensionalreconstruction
Model meshes, with error caused by balance reconstruct typical sample and sample internal structure inconsistency.
A kind of three-dimensionalreconstruction model meshes construction method based on X-CT scanning and figure segmentation, is primarily characterized in that packet
Containing following steps:
(1) using P- wave velocity of wave as selecting index aliquot part, coal, rock of each group axial direction P- wave velocity of wave close to mean value are chosen
Sample carries out X-CT scanning；
(2) it obtains all X-CT images after scanning X-CT all to import in three-dimensionalreconstruction software, according to reconstruct sample institute
Size, shape, quantity etc. are needed, the different zones for needing to reconstruct in same sample are selected, carries out figure segmentation；
(3) it to the graphics field after segmentation, is reconstructed respectively and grid dividing, it is soft according to used sunykatuib analysis
Part, three-dimensionalreconstruction model meshes needed for exporting.
The invention has the following advantages that
The present invention provides a kind of new methods, solve and reconstruct the model based on authentic sample using X-CT scanning technique
It is ground caused by representativeness in method since X-CT scanning and three-dimensionalreconstruction model meshes lazy weight and selection sample do not have
Study carefully error, provides the error balance method researched and analysed during problem based on X-CT scanning three-dimensionalreconstruction sample.
Detailed description of the invention
A kind of three-dimensionalreconstruction model meshes schematic diagram of construction method based on X-CT scanning and figure segmentation of Fig. 1.
Specific embodiment
It is a kind of it is improved based on X-CT scanning and figure segmentation three-dimensionalreconstruction model meshes construction method it includes processing
Sample and figure segmentation 3-D view 5, again after good sample 1, P- wave wave speed measurement 2, aliquot part 3, X-CT image 4, reconstruct
Sample and figure segmentation side view 6, figure obtain each model meshes 8, upper left side segmentation after being partitioned into each sample 7, reconstruct after structure
Sample 11 is divided in sample 9, lower left side segmentation sample 10, upper right side, and specific implementation process is as follows:
(1) sample 1 will be processed and carry out P- wave wave speed measurement 2, it is equal close to each sample P- wave velocity of wave to select P- wave velocity of wave
The aliquot part 3 of value；
(2) X-CT scanning is carried out to aliquot part 3, obtains X-CT image 4；
(3) the X-CT image 4 that scanning obtains is imported into three-dimensionalreconstruction software and carries out figure segmentation, sample after being reconstructed
And sample and figure divide side view 6 after figure segmentation 3-D view 5, reconstruct；
(4) divide to obtain upper left side segmentation sample 9, lower left side segmentation sample 10, upper right side segmentation sample 11 for figure to divide
Not carry out three-dimensionalreconstruction, obtain figure and be partitioned into each sample 7；
(5) each sample 7 is partitioned into figure to carry out obtaining each model meshes 8 after grid dividing is reconstructed respectively.
Claims (1)
1. a kind of three-dimensionalreconstruction model building method divided based on X-CT and figure, is primarily characterized in that comprising following step
It is rapid:
(1) using P- wave velocity of wave as selecting index aliquot part, coal, rock sample of each group axial direction P- wave velocity of wave close to mean value are chosen
Carry out X-CT scanning.
(2) it obtains all X-CT images after scanning X-CT all to import in three-dimensionalreconstruction software, according to ruler needed for reconstruct sample
Very little, shape, quantity etc. select the different zones for needing to reconstruct in same sample, carry out figure segmentation.
(3) it to the graphics field after segmentation, is reconstructed respectively and grid dividing is led according to used simulation-analysis software
Required three-dimensionalreconstruction model meshes out.
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| CN201910589004.0A CN110322501A (en) | 2019-07-02 | 2019-07-02 | A kind of three-dimensionalreconstruction model building method divided based on X-CT and figure |
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| CN201910589004.0A CN110322501A (en) | 2019-07-02 | 2019-07-02 | A kind of three-dimensionalreconstruction model building method divided based on X-CT and figure |
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| CN110322501A true CN110322501A (en) | 2019-10-11 |
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| CN201910589004.0A Pending CN110322501A (en) | 2019-07-02 | 2019-07-02 | A kind of three-dimensionalreconstruction model building method divided based on X-CT and figure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183875A (en) * | 2023-04-21 | 2023-05-30 | 煤炭科学研究总院有限公司 | Rock mass wave velocity determination method and device and electronic equipment |
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|---|---|---|---|---|
| CN1924571A (en) * | 2006-09-21 | 2007-03-07 | 浙江建设职业技术学院 | Ultrasonic determination method of light-weight soil wave speed characteristic root |
| CN103558094A (en) * | 2013-09-23 | 2014-02-05 | 绍兴文理学院 | Method for representatively sampling subsize rock model structural surface sample sampled based on layering probability |
| CN104502453A (en) * | 2014-12-17 | 2015-04-08 | 河南理工大学 | Longitudinal wave test device of gas-containing coal rock test sample |
| CN105160050A (en) * | 2015-07-01 | 2015-12-16 | 中国矿业大学(北京) | Loaded coal and rock damage constitutive equation building method based on CT scanning |
| CN106092694A (en) * | 2016-08-05 | 2016-11-09 | 成都理工大学 | A kind of shale mechanics parameter test sample |
| CN208476863U (en) * | 2018-06-07 | 2019-02-05 | 河北中核岩土工程有限责任公司 | A kind of experimental rig measuring core sample shear wave velocity |
-
2019
- 2019-07-02 CN CN201910589004.0A patent/CN110322501A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924571A (en) * | 2006-09-21 | 2007-03-07 | 浙江建设职业技术学院 | Ultrasonic determination method of light-weight soil wave speed characteristic root |
| CN103558094A (en) * | 2013-09-23 | 2014-02-05 | 绍兴文理学院 | Method for representatively sampling subsize rock model structural surface sample sampled based on layering probability |
| CN104502453A (en) * | 2014-12-17 | 2015-04-08 | 河南理工大学 | Longitudinal wave test device of gas-containing coal rock test sample |
| CN105160050A (en) * | 2015-07-01 | 2015-12-16 | 中国矿业大学(北京) | Loaded coal and rock damage constitutive equation building method based on CT scanning |
| CN106092694A (en) * | 2016-08-05 | 2016-11-09 | 成都理工大学 | A kind of shale mechanics parameter test sample |
| CN208476863U (en) * | 2018-06-07 | 2019-02-05 | 河北中核岩土工程有限责任公司 | A kind of experimental rig measuring core sample shear wave velocity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116183875A (en) * | 2023-04-21 | 2023-05-30 | 煤炭科学研究总院有限公司 | Rock mass wave velocity determination method and device and electronic equipment |
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