CN109509176A - The recognition methods and voidage calculation method of effective connectivity gap in porous pavement - Google Patents
The recognition methods and voidage calculation method of effective connectivity gap in porous pavement Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000004364 calculation method Methods 0.000 title claims abstract description 12
- 238000002591 computed tomography Methods 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000011800 void material Substances 0.000 claims description 22
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- 238000012545 processing Methods 0.000 claims description 10
- 239000002352 surface water Substances 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000011156 evaluation Methods 0.000 description 8
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- 239000000463 material Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The invention discloses the recognition methods and voidage calculation method of connectivity gap effective in porous pavement, wherein the recognition methods of effective connectivity gap includes the following steps: the CT scan image for obtaining several cross sections of porous pavement sample in porous pavement；Binary conversion treatment is carried out to CT scan image, generates several gap binary maps of porous pavement sample；Unlabelled gap by the gap with intersection labeled as the active porosity in corresponding gap binary map, and is deleted in the successively gap in more adjacent two gap binary maps；Using the active porosity in last gap binary map as effective connectivity gap of porous pavement.By successively comparing the adjacent gap binary map of porous pavement sample, when the gap in adjacent two gap binary maps has intersection, two gaps with intersection are connected, belong to active porosity, marked and retained, can by porous pavement effective connectivity gap and invalid connectivity gap be distinguished.
Description
Technical field
The present invention relates to a kind of identifications of connectivity gap effective in technical field of road engineering more particularly to porous pavement
Method, the voidage calculation method of porous pavement, the effective gap of the identification device of connectivity gap, porous pavement in porous pavement
Rate computing device, road surface water penetration valuator device and computer readable storage medium.
Background technique
According to traditional road design theory, highways and urban roads road surface has many characteristics, such as closely knit, smooth, wear-resisting, antiskid,
Surface material is mostly used closely knit asphalt, cement concrete etc., although having impermeability, when rainfall is larger or row
When waterpipe blocks, impermeability road surface can cause surface gathered water problem because drainage speed is inadequate.In recent years, China is answered recently
Water-permeable pavement belongs to novel pavement form, it changes the defect of traditional impermeability surface gathered water, has the rainy day can
Rapid discharge path table ponding, multi-pore structure reduce driving noise, rainwater permeates the ground recharge of groundwater, it is oxygen-containing to increase soil
The advantages that measuring, being conducive to ecology.
In water-permeable pavement, rainwater enters road surface by the gap that it is in communication with the outside, then passes through the gap in road surface
It permeates the ground, therefore, the voidage in porous pavement is to evaluate the important indicator of the water penetration of water-permeable pavement.But it is true
Upper and not all connectivity gap all has a significant effect to the water permeability of material, and part connectivity gap only has one end and the external world even
Logical, the other end is closed end, and although extraneous water flow is able to enter these gaps, but can not flow freely, i.e., these gaps are to material
The water permeability of material belongs to invalid connectivity gap almost without contribution, and the only gap that is all in communication with the outside of both ends is just to permeable
The permeability performance of property paving material plays decisive role, belongs to effective connectivity gap.Therefore, in order to make according to porous pavement
Voidage can accurate evaluation porous pavement water penetration, need by water-permeable pavement effective connectivity gap be connected in vain
Gap is distinguished.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing effective connectivity gap identification side in a kind of porous pavement
Effective connectivity gap in water-permeable pavement is distinguished by method with invalid connectivity gap.
For this purpose, according in a first aspect, being wrapped the present invention provides a kind of recognition methods of connectivity gap effective in porous pavement
It includes following steps: obtaining the CT scan image in several cross sections of porous pavement sample；Binaryzation is carried out to CT scan image
Processing generates several gap binary maps of porous pavement sample；The successively gap in more adjacent two gap binary maps, will
Unlabelled gap is deleted labeled as the active porosity in corresponding gap binary map in gap with intersection；It will most
Effective connectivity gap of the active porosity as porous pavement in latter gap binary map.
Optionally, the successively gap in more adjacent two gap binary maps, the gap with intersection is labeled as
Active porosity in the binary map of corresponding gap, and unlabelled gap is deleted, include the following steps: to read i-th and i-th
+ 1 gap binary map；Compare the gap in i-th gap binary map and i+1 gap binary map；If i-th gap two
The a certain gap being worth in a certain gap in figure and i+1 gap binary map has intersection, then by i-th gap two-value
A certain gap in figure is labeled as the active porosity in i-th gap binary map, by a certain sky in i+1 gap binary map
Gap is labeled as the active porosity in i+1 gap binary map；Delete i-th gap binary map and i+1 gap two-value
The gap not being labeled in figure；Judge whether i+1 gap binary map is last gap binary map；When i+1 sky
When gap binary map is last gap binary map, terminate process；When i+1 gap binary map is not last gap two
When value figure, i+1 gap binary map as i-th gap binary map and is continued gap and compared, until i+1 sky
Gap binary map is last gap binary map.
Optionally, i-th gap binary map is the cross section being located above i+1 gap binary map in porous pavement
The binary picture of CT scan image；Alternatively, i-th gap binary map is located under i+1 gap binary map in porous pavement
The binary picture of the CT scan image in the cross section of side.
Optionally, the gray value of the void area in the binary map of gap is 0, and the gray value of non-void area is 255, or
Person, the gray value of the void area in the binary map of gap are 255, and the gray value of non-void area is 0.
According to second aspect, the present invention provides a kind of voidage calculation methods of porous pavement, include the following steps: to make
With effective connectivity gap in all or part of recognition methods identification porous pavement sample of above-mentioned first aspect；Calculating effectively connects
The volume in logical gap accounts for the ratio of the volume of porous pavement sample, obtains the voidage of porous pavement.
According to the third aspect, the present invention provides a kind of identification devices of connectivity gap effective in porous pavement, comprising: figure
As obtaining module, the CT scan image in several cross sections for obtaining porous pavement sample；Image processing module, for pair
CT scan image carries out binary conversion treatment, generates several gap binary maps of porous pavement sample；Gap mark module, is used for
Gap with intersection is labeled as corresponding gap binary map by the successively gap in more adjacent two gap binary maps
In active porosity, and delete unlabelled gap；Effective connectivity gap identification module, is used for last gap binary map
In effective connectivity gap of the active porosity as porous pavement.
Optionally, gap mark module includes: image reading unit, for reading i-th and i+1 gap two-value
Figure；Gap comparing unit, for comparing the gap in i-th gap binary map and i+1 gap binary map；Gap label is single
Member is overlapped if had for a certain gap in i-th gap binary map with a certain gap in i+1 gap binary map
Part, then by a certain gap in i-th gap binary map labeled as the active porosity in i-th gap binary map, by i+1
The a certain gap in the binary map of gap is opened labeled as the active porosity in i+1 gap binary map；Unit is deleted in gap, is used for
Delete the gap not being labeled in i-th gap binary map and i+1 gap binary map；Judging unit, for judging i-th
Whether+1 gap binary map is last gap binary map；Process end unit, for terminating process；Assignment unit is used
As i-th gap binary map and continue gap in using i+1 gap binary map and compare, until i+1 gap two
Being worth figure is last gap binary map.
According to fourth aspect, the present invention provides a kind of voidage computing devices of porous pavement, comprising: effectively connection is empty
Gap identification module, for effectively connecting in all or part of recognition methods identification porous pavement sample using above-mentioned first aspect
Logical gap；Voidage computing module, the volume for calculating effective connectivity gap account for the ratio of the volume of porous pavement sample, obtain
To the voidage of porous pavement.
According to the 5th aspect, the present invention provides a kind of road surface water penetration valuator devices, comprising: at least one processor；
And the memory being connect at least one processor communication；Wherein, memory is stored with the finger that can be executed by a processor
It enables, instruction is executed by least one processor, so that at least one processor executes all or part side of above-mentioned first aspect
Method, or execute all or part of method of above-mentioned second aspect.
According to the 6th aspect, the present invention provides a kind of computer readable storage mediums, are stored thereon with computer instruction,
The step of all or part of method of above-mentioned first aspect, is realized in the instruction when being executed by processor, or realizes above-mentioned second party
The step of all or part of method in face.Technical solution provided in an embodiment of the present invention, has the advantages that
1, in porous pavement provided by the invention effective connectivity gap recognition methods, include the following steps: to obtain permeable
The CT scan image in several cross sections of road surface sample；Binary conversion treatment is carried out to CT scan image, generates porous pavement sample
This several gap binary maps；The successively gap in more adjacent two gap binary maps, by the gap with intersection
Labeled as the active porosity in corresponding gap binary map, and delete unlabelled gap；It will be in last gap binary map
Effective connectivity gap of the active porosity as porous pavement.It is obtained by successively more adjacent two to after porous pavement CT scan
The gap binary map of the CT scan image arrived has weight when the gap in adjacent two gap binary maps has intersection
Two gaps for closing part are connected, and belong to active porosity, are marked and retained, then when the comparison for completing all gap binary maps
When, it marks in last gap binary map and the active porosity retained is to play certainly in the porous pavement to its permeability performance
Effective connectivity gap of qualitative effect, i.e., the recognition methods of effective connectivity gap can will be in porous pavement in the porous pavement
Effective connectivity gap and invalid connectivity gap are distinguished, so as to improve the voidage according to porous pavement sample to permeable
Road surface carries out evaluation accuracy when water penetration evaluation.
2. the voidage calculation method of porous pavement provided by the invention, includes the following steps: using above-mentioned first aspect
All or part of recognition methods identification porous pavement sample in effective connectivity gap；The volume for calculating effective connectivity gap accounts for
The ratio of the volume of porous pavement sample obtains the voidage of porous pavement.By using connectivity gap effective in porous pavement
Recognition methods identification porous pavement sample in effective connectivity gap, and porous pavement is accounted for according to the volume of effective connectivity gap
The ratio calculation of the volume of sample obtains the voidage of porous pavement sample, and (voidage of the porous pavement sample is permeable road
The voidage in face), it is able to solve the effective connectivity gap and invalid connectivity gap for not distinguishing porous pavement sample, directly according to thoroughly
The volume of water route face sample void (including effective connectivity gap and invalid connectivity gap) accounts for the volume of porous pavement sample
The lower problem of the accuracy of the water penetration for the voidage evaluation porous pavement that ratio obtains.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
The method flow diagram of the recognition methods of effective connectivity gap in the porous pavement that Fig. 1 provides for embodiment 1；
Fig. 2 is the specific example figure of 1 void binary map of embodiment；
Fig. 3 is the specific method flow chart of step S30 in Fig. 1；
Fig. 4 is that the active porosity in embodiment 1 marks schematic diagram；
Fig. 5 is the method flow diagram of the voidage calculation method for the porous pavement that embodiment 2 provides；
The structural schematic diagram of the identification device of effective connectivity gap in the porous pavement that Fig. 6 provides for embodiment 3；
Fig. 7 is the hardware structural diagram for the road surface water penetration valuator device that embodiment 5 provides.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
Embodiment 1
The effectively recognition methods of connectivity gap in a kind of porous pavement is present embodiments provided, as shown in Figure 1.It needs to illustrate
, step shown in the flowchart of the accompanying drawings can hold in a computer system such as a set of computer executable instructions
Row, although also, logical order is shown in flow charts, and it in some cases, can be to be different from sequence herein
Execute shown or described step.The process includes the following steps:
Step S10 obtains the CT scan image in several cross sections of porous pavement sample.In the present embodiment, several
The CT scan image for opening cross section is to carry out several sectioning images that a CT scan generates to porous pavement sample.
Step S20 carries out binary conversion treatment to CT scan image, generates several gap two-values of porous pavement sample
Figure.In the present embodiment, the gray value of the void area in the binary map of gap is 0, and the gray value of non-void area is 255, or
Person, the gray value of the void area in the binary map of gap are 255, and the gray value of non-void area is 0.Specifically, with gap two
The gray value for being worth the void area in figure is 0, and for the gray value of non-void area is 255, CT scan figure is by binaryzation
Gap binary map shown in Fig. 2 can be obtained after reason, the white area in Fig. 2 is void area, and black region is non-interstice coverage
Domain.
Step S30, successively the gap in more adjacent two gap binary maps, the gap with intersection is labeled as
Active porosity in the binary map of corresponding gap, and delete unlabelled gap.
In a particular embodiment, as shown in figure 3, step S30 includes the following steps:
Step S31 reads i-th and i+1 gap binary map.
Step S32 compares the gap in i-th gap binary map and i+1 gap binary map.
Step S33, if a certain sky in the binary map of gap is opened in a certain gap and i+1 in i-th gap binary map
Gap has intersection, then by a certain gap in i-th gap binary map labeled as effective sky in i-th gap binary map
Gap, by a certain gap in i+1 gap binary map labeled as the active porosity in i+1 gap binary map.In this reality
It applies in example, it is assumed that gap A is a gap in i-th gap binary map, gap B is i+1 gap two
It is worth a gap in figure, and gap A and gap B has intersection C, then gap A is labeled as i-th gap binary map
In active porosity, by gap B labeled as the active porosity in i+1 gap binary map.
Step S34 deletes the gap not being labeled in i-th gap binary map and i+1 gap binary map.
Step S35 judges whether i+1 gap two-value is last gap binary map.In the present embodiment, when
When i+1 gap two-values are last gap binary map, step S36 is executed；When i+1 gap two-value is not last
It when the binary map of gap, executes step S37 and repeats step S31~step S35, until i+1 gap binary map is most
Latter gap binary map.
Step S36 terminates process.
Step S37, using i+1 gap binary map as i-th gap binary map.
Step S40, using the active porosity in last gap binary map as effective connectivity gap of porous pavement.
The recognition methods of effective connectivity gap in porous pavement provided in this embodiment, passes through successively more adjacent two pairs
The gap binary map of the CT scan image obtained after porous pavement CT scan, when the gap in adjacent two gap binary maps has
When intersection, two gaps with intersection are connected, and belong to active porosity, are marked and retained, then when completion institute
When having the comparison of gap binary map, the active porosity for marking and retaining in last gap binary map is in the porous pavement
Effective connectivity gap of decisive role is played to its permeability performance, i.e., the recognition methods of effective connectivity gap in the porous pavement
Can by porous pavement effective connectivity gap and invalid connectivity gap be distinguished, so as to improve according to porous pavement
The voidage of sample carries out evaluation accuracy when water penetration evaluation to porous pavement.
In an alternate embodiment of the invention, i-th gap binary map is located above i+1 gap binary map in porous pavement
Cross section CT scan image binary picture；Alternatively, i-th gap binary map is to be located at i+1 sky in porous pavement
The binary picture of the CT scan image in the cross section below gap binary map.Can according to from the top of porous pavement sample to
The direction of the bottom of porous pavement sample is successively compared adjacent gap binary map, or according to from porous pavement
The bottom of sample is successively compared adjacent gap binary map to the direction of the top of porous pavement sample.It is preferred that
Ground, can also be first according to from the top of porous pavement sample to the direction of the bottom of porous pavement sample, successively to adjacent
Gap binary map be compared, according still further to the bottom from porous pavement sample to the side of the top of porous pavement sample
To being successively compared to adjacent gap binary map；Alternatively, first according to from the bottom of porous pavement sample to porous pavement
The direction of the top of sample is successively compared adjacent gap binary map, according still further to from the most upper of porous pavement sample
The direction of the bottom of direction porous pavement sample is successively compared adjacent gap binary map, effectively connects to improve
The identification accuracy in logical gap.
Embodiment 2
A kind of voidage calculation method of porous pavement is present embodiments provided, as shown in Figure 5.It should be noted that
The step of process of attached drawing illustrates can execute in a computer system such as a set of computer executable instructions, also,
It, in some cases, can be to be different from shown in sequence execution herein although logical order is shown in flow charts
The step of out or describing.The process includes the following steps:
Step S100, using effective in all or part of recognition methods identification porous pavement sample of above-described embodiment 1
Connectivity gap.
Step S200, calculate effective connectivity gap volume account for porous pavement sample volume ratio, obtain permeable road
The voidage in face.In the present embodiment, the body of the effective connectivity gap of virtual measurement functional measurement of mimics software can be used
Long-pending and porous pavement sample volume, it is of course also possible to which other measurement methods complete cubing, herein with no restrictions.
The voidage calculation method of porous pavement provided in this embodiment, by using connectivity gap effective in porous pavement
Recognition methods identification porous pavement sample in effective connectivity gap, and porous pavement is accounted for according to the volume of effective connectivity gap
The ratio calculation of the volume of sample obtains the voidage of porous pavement sample, and (voidage of the porous pavement sample is permeable road
The voidage in face), it is able to solve the effective connectivity gap and invalid connectivity gap for not distinguishing porous pavement sample, directly according to thoroughly
The volume of water route face sample void (including effective connectivity gap and invalid connectivity gap) accounts for the volume of porous pavement sample
The lower problem of the accuracy of the water penetration for the voidage evaluation porous pavement that ratio obtains.
Embodiment 3
Provide in a kind of porous pavement the effectively identification device of connectivity gap in the present embodiment, the device for realizing
Above-described embodiment 1 and its preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " mould
The combination of the software and/or hardware of predetermined function may be implemented in block ".Although device described in following embodiment is preferably with soft
Part is realized, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
The present embodiment provides a kind of identification devices of connectivity gap effective in porous pavement, as shown in Figure 6, comprising: image
Obtain module 10, image processing module 20, gap mark module 30 and effective connectivity gap identification module 40.
Wherein, image collection module 10 is used to obtain the CT scan image in several cross sections of porous pavement sample；Figure
As processing module 20 is used to carry out CT scan image binary conversion treatment, several gap two-values of generation porous pavement sample
Figure；Gap mark module 30 is for the gap in successively more adjacent two gap binary maps, by the gap with intersection
Labeled as the active porosity in corresponding gap binary map, and delete unlabelled gap；Effective connectivity gap identification module 40
For using the active porosity in last gap binary map as effective connectivity gap of porous pavement.
In the present embodiment, the gray value of the void area in the binary map of gap is 0, and the gray value of non-void area is
255, alternatively, the gray value of the void area in the binary map of gap is 255, the gray value of non-void area is 0.
In an alternate embodiment of the invention, gap mark module 30 includes: image reading unit, gap marking unit, gap mark
Remember unit, unit, judging unit, process end unit and assignment unit are deleted in gap.
Wherein, image reading unit is for reading i-th and i+1 gap binary map；Gap comparing unit is used for
Compare the gap in i-th gap binary map and i+1 gap binary map；If gap marking unit is used for i-th gap
The a certain gap in the gap binary map of a certain gap and i+1 in binary map has intersection, then by i-th gap two
It is worth a certain gap in figure labeled as the active porosity in i-th gap binary map, it will be a certain in i+1 gap binary map
Gap is labeled as the active porosity in i+1 gap binary map；Gap delete unit for delete i-th gap binary map with
And the gap not being labeled in i+1 gap binary map；Whether judging unit is most for judging i+1 gap binary map
Latter gap binary map；Process end unit is for terminating process；Assignment unit be used for using i+1 gap binary map as
I-th gap binary map simultaneously continues gap and compares, until i+1 gap binary map is last gap binary map.
In the present embodiment, i-th gap binary map is the cross being located above i+1 gap binary map in porous pavement
The binary picture of the CT scan image of section；Alternatively, i-th gap binary map is to be located at i+1 gap two in porous pavement
The binary picture of the CT scan image in the cross section of value figure lower section.
Embodiment 4
A kind of voidage computing device of porous pavement is provided in the present embodiment, and the device is for realizing above-mentioned implementation
Example 2 and its preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " can be real
The combination of the software and/or hardware of existing predetermined function.Although device described in following embodiment is preferably realized with software,
But the realization of the combination of hardware or software and hardware is also that may and be contemplated.
The present embodiment provides a kind of voidage computing devices of porous pavement, comprising: effective connectivity gap identification module and
Voidage computing module.Wherein, effective connectivity gap identification module is used for all or part of identification side using above-described embodiment 1
Method identifies effective connectivity gap in porous pavement sample；The volume that voidage computing module is used to calculate effective connectivity gap accounts for
The ratio of the volume of porous pavement sample obtains the voidage of porous pavement.
Embodiment 5
The embodiment of the invention provides a kind of road surface water penetration valuator devices, as shown in fig. 7, road surface water penetration evaluation is set
Standby may include: at least one processor 701, such as CPU (Central Processing Unit, central processing unit), at least
One communication interface 703, memory 704, at least one communication bus 702.Wherein, communication bus 702 is for realizing these groups
Connection communication between part.Wherein, communication interface 703 may include display screen (Display), keyboard (Keyboard), optional
Communication interface 703 can also include standard wireline interface and wireless interface.Memory 704 can be high speed RAM memory
(Random Access Memory, effumability random access memory), is also possible to non-labile memory (non-
Volatile memory), a for example, at least magnetic disk storage.It is remote that memory 704 optionally can also be that at least one is located at
Storage device from aforementioned processor 701.Application program is wherein stored in memory 704, and processor 701 calls memory
The program code stored in 704, it is with for either executing in embodiment 1 or embodiment 2 method step, i.e., following for executing
Operation:
Obtain the CT scan image in several cross sections of porous pavement sample；CT scan image is carried out at binaryzation
Reason generates several gap binary maps of porous pavement sample；The successively gap in more adjacent two gap binary maps, will have
There is the gap of intersection labeled as the active porosity in corresponding gap binary map, and deletes unlabelled gap；It will be last
Effective connectivity gap of the active porosity as porous pavement in one gap binary map.
In the embodiment of the present invention, processor 701 calls the program code in memory 704, is also used to execute following operation:
Read i-th and i+1 gap binary map；Compare the sky in i-th gap binary map and i+1 gap binary map
Gap；If a certain gap in the gap binary map of a certain gap and i+1 in i-th gap binary map has coincidence part
Point, then by a certain gap in i-th gap binary map labeled as the active porosity in i-th gap binary map, by i+1
A certain gap in the binary map of gap is labeled as the active porosity in i+1 gap binary map；Delete i-th gap binary map
And the gap not being labeled in i+1 gap binary map；Judge whether i+1 gap binary map is last gap
Binary map；When i+1 gap binary map is last gap binary map, terminate process；When i+1 gap binary map
When not being last gap binary map, i+1 gap binary map as i-th gap binary map and is continued into gap
Compare, until i+1 gap binary map is last gap binary map.
In the embodiment of the present invention, processor 701 calls the program code in memory 704, is also used to execute following operation:
Use effective connectivity gap in all or part of recognition methods identification porous pavement sample of embodiment 1；Calculate effectively connection
The volume in gap accounts for the ratio of the volume of porous pavement sample, obtains the voidage of porous pavement.
Wherein, communication bus 702 can be Peripheral Component Interconnect standard (peripheral component
Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (extended industry standard
Architecture, abbreviation EISA) bus etc..Communication bus 702 can be divided into address bus, data/address bus, control bus etc..
Only to be indicated with a line in Fig. 7, it is not intended that an only bus or a type of bus convenient for indicating.
Wherein, memory 704 may include volatile memory (English: volatile memory), such as arbitrary access
Memory (English: random-access memory, abbreviation: RAM)；Memory also may include nonvolatile memory (English
Text: non-volatile memory), for example, flash memory (English: flash memory), hard disk (English: hard disk
Drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD)；Memory 704 can also wrap
Include the combination of the memory of mentioned kind.
Wherein, processor 701 can be central processing unit (English: central processing unit, abbreviation:
CPU), the combination of network processing unit (English: network processor, abbreviation: NP) or CPU and NP.
Wherein, processor 701 can further include hardware chip.Above-mentioned hardware chip can be specific integrated circuit
(English: application-specific integrated circuit, abbreviation: ASIC), programmable logic device (English:
Programmable logic device, abbreviation: PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices
(English: complex programmable logic device, abbreviation: CPLD), field programmable gate array (English:
Field-programmable gate array, abbreviation: FPGA), Universal Array Logic (English: generic array
Logic, abbreviation: GAL) or any combination thereof.
Embodiment 6
The embodiment of the invention also provides a kind of non-transient computer storage medium, the computer storage medium is stored with
Either embodiment 1 or embodiment 2 method step can be performed in computer executable instructions, the computer executable instructions.Wherein,
The storage medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM), random access memory
(Random Access Memory, RAM), flash memory (Flash Memory), hard disk (Hard Disk Drive, contracting
Write: HDD) or solid state hard disk (Solid-State Drive, SSD) etc.；The storage medium can also include depositing for mentioned kind
The combination of reservoir.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. the recognition methods of effective connectivity gap in a kind of porous pavement, which comprises the steps of:
Obtain the CT scan image in several cross sections of the porous pavement sample；
Binary conversion treatment is carried out to the CT scan image, generates several gap binary maps of the porous pavement sample；
Gap with intersection is labeled as corresponding institute by the successively gap in the more adjacent two gap binary maps
The active porosity in the binary map of gap is stated, and deletes unlabelled gap；
Using the active porosity in last described gap binary map as effective connectivity gap of the porous pavement.
2. the recognition methods of effective connectivity gap in porous pavement according to claim 1, which is characterized in that successively compare
Gap with intersection is labeled as the corresponding gap binary map by the gap in adjacent two gap binary maps
In active porosity, and delete unlabelled gap, include the following steps:
Read i-th and i+1 Zhang Suoshu gap binary map；
Compare the gap in i-th gap binary map and the i+1 gap binary map；
If a certain gap in the gap binary map of a certain gap and the i+1 in i-th gap binary map has
There is intersection, then by a certain gap in i-th gap binary map labeled as having in i-th gap binary map
Gap is imitated, by a certain gap in the i+1 gap binary map labeled as effective in the i+1 gap binary map
Gap；
Delete the gap not being labeled in i-th gap binary map and the i+1 gap binary map；
Judge whether the i+1 gap binary map is last gap binary map；
When the i+1 gap binary map is last gap binary map, terminate process；
When the i+1 gap binary map is not last gap binary map, the i+1 gap binary map is made
For i-th gap binary map and continue gap and compare, until the i+1 gap binary map is last gap two
Value figure.
3. the recognition methods of effective connectivity gap in porous pavement according to claim 2, which is characterized in that described i-th
Opening gap binary map is the CT scan image for being located at the cross section above the i+1 gap binary map in the porous pavement
Binary picture；Alternatively,
I-th gap binary map is the cross section being located at below the i+1 gap binary map in the porous pavement
CT scan image binary picture.
4. the recognition methods of effective connectivity gap in porous pavement according to claim 1, which is characterized in that gap two-value
The gray value of void area in figure is 0, and the gray value of non-void area is 255, alternatively, the gap in the gap binary map
The gray value in region is 255, and the gray value of non-void area is 0.
5. a kind of voidage calculation method of porous pavement, which comprises the steps of:
Effective connectivity gap in the porous pavement sample is identified using the described in any item recognition methods of claim 1-4；
Calculate effective connectivity gap volume account for the porous pavement sample volume ratio, obtain the porous pavement
Voidage.
6. the identification device of effective connectivity gap in a kind of porous pavement characterized by comprising
Image collection module, the CT scan image in several cross sections for obtaining the porous pavement sample；
Image processing module, for carrying out binary conversion treatment to the CT scan image, if generating the porous pavement sample
Dry gap binary map；
Gap mark module will be with intersection for the gap in the successively more adjacent two gap binary maps
Gap is labeled as the active porosity in the corresponding gap binary map, and deletes unlabelled gap；
Effective connectivity gap identification module, for using the active porosity in last described gap binary map as described permeable
Effective connectivity gap on road surface.
7. the identification device of effective connectivity gap in porous pavement according to claim 6, which is characterized in that the gap
Mark module includes:
Image reading unit, for reading i-th and i+1 Zhang Suoshu gap binary map；
Gap comparing unit, for the gap in i-th gap binary map and the i+1 gap binary map；
Gap marking unit, if gap two-value is opened with the i+1 in a certain gap in i-th gap binary map
A certain gap in figure has intersection, then a certain gap in i-th gap binary map is labeled as described i-th
Active porosity in the binary map of gap, by a certain gap in the i+1 gap binary map labeled as the i+1 sky
Active porosity in gap binary map；
Unit is deleted in gap, is not marked for deleting in i-th gap binary map and the i+1 gap binary map
The gap of note；
Judging unit, for judging whether the i+1 gap binary map is last gap binary map；
Process end unit, for terminating process；
Assignment unit, for the i+1 gap binary map as i-th gap binary map and to be continued void ratio
Compared with until the i+1 gap binary map is last gap binary map.
8. a kind of voidage computing device of porous pavement characterized by comprising
Effective connectivity gap identification module, it is described permeable for being identified using the described in any item recognition methods of claim 1-4
Effective connectivity gap in the sample of road surface；
Voidage computing module, the volume for calculating effective connectivity gap account for the ratio of the volume of the porous pavement sample
Rate obtains the voidage of the porous pavement.
9. a kind of road surface water penetration valuator device characterized by comprising at least one processor；And with described at least one
The memory of a processor communication connection；Wherein, the memory is stored with the instruction that can be executed by one processor, institute
It states instruction to be executed by least one described processor, appoint so that at least one described processor executes in the claims 1-4
Method described in one, or execute method described in the claims 5.
10. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the instruction is by processor
The step of any the method in the claims 1-4 is realized when execution, or realize 5 the method for the claims
Step.
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