CN107201713A - Pavement crack Defect inspection method and system - Google Patents
Pavement crack Defect inspection method and system Download PDFInfo
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- CN107201713A CN107201713A CN201610151196.3A CN201610151196A CN107201713A CN 107201713 A CN107201713 A CN 107201713A CN 201610151196 A CN201610151196 A CN 201610151196A CN 107201713 A CN107201713 A CN 107201713A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007689 inspection Methods 0.000 title claims abstract description 18
- 230000007547 defect Effects 0.000 title claims abstract description 14
- 238000003384 imaging method Methods 0.000 claims abstract description 40
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 201000010099 disease Diseases 0.000 claims abstract description 35
- 238000001228 spectrum Methods 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 28
- 230000010365 information processing Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 19
- 241000283070 Equus zebra Species 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of pavement crack Defect inspection method, comprises the following steps:Laser generator launches laser beam to track, and the bending graticule of series winding is formed on road surface to be measured；Bending graticule based on predetermined collection period IMAQ control signal control straight line laser image acquisition device series winding, obtain light spot image, information processing system carries out the LPF continuous cross-section numerical imaging that low-pass filtering treatment is obtained to light spot image, and the filtering parameter of the LPF is related to the hot spot that the bending graticule contacted is formed；The light spot image of information processing system carries out full spectrum fidelity processing and obtains composing section numerical imaging entirely, and the filtering parameter of the full spectrum fidelity processing is related to the hot spot that the bending graticule contacted is formed；The LPF continuous cross-section numerical imaging that the full spectrum section numerical imaging that full spectrum fidelity processing is obtained is obtained with low-pass filtering treatment carries out the pulse elevation numerical imaging that difference obtains pavement crack disease, improves operating efficiency.
Description
Technical field
The present invention relates to pavement detection field, in particular to a kind of road or other similar structures pavings
Crack, the measuring method and system of pit.
Background technology
At present, in pavement crack Defect inspection field, crack two dimension is damaged main using manually directly observation is sentenced
Read the crack identification method with crack two dimensional image.Compared using artificial directly observation interpretation, its master existed
It is that can not in real time be detected and influence normal traffic safety to want problem, and detection efficiency and accuracy of detection are also waited to carry
It is high.
Using the crack identification method based on crack two dimensional image, its foundation analyzed is crack in certain illumination
Under the conditions of the difference that exists in itself of light characteristics and road surface, but this is not the intrinsic propesties in crack, due to
Two dimensional image sensing principle can not thoroughly be overcome, its illumination condition in gatherer process, shade, road surface oil
The disturbing factors such as dirt, debris, the information only obtained by crack two dimensional image can not extract complete crack,
And the depth characteristic in crack can not be reflected.
A kind of three-dimensional visualization measuring system using GNSS (GLONASS) is also created in the recent period,
The system sends it to special equipment by connecting satellite system gathered data and is written and read, and can reach
More accurate measurement result, but its is expensive, is not suitable for generally substantial amounts of use.
The content of the invention
Present invention aims at provide a kind of detection efficiency and precision height to realize the completely quantitative of crack disease
The pavement crack Defect inspection method and system of automated intelligent processing.
The above-mentioned purpose of the present invention realizes that dependent claims are with another by the technical characteristic of independent claims
Choosing or favourable mode develop the technical characteristic of independent claims.
To reach above-mentioned purpose, the present invention proposes a kind of pavement crack Defect inspection method, comprised the following steps:
Laser generator 12 launches laser beam to track, in the bending graticule AB of road surface M to be measured formation series windings；
Bending graticule AB of the straight line laser image collecting device 14 based on predetermined collection period collection series winding, is obtained
Light spot image, the collection period is less than or equal to 100mm；Information processing system carries out low pass to light spot image
Filtering process, the LPF continuous cross-section numerical imaging that low-pass filtering treatment is obtained；Information processing system pair
Light spot image carries out full spectrum fidelity processing, the full spectrum section numerical imaging that full spectrum fidelity processing is obtained；It will compose entirely
The LPF continuous cross-section number that the full spectrum section numerical imaging that fidelity processing is obtained is obtained with low-pass filtering treatment
Value image carries out the pulse elevation numerical imaging that difference obtains pavement crack disease；To pulse elevation numerical imaging
Progress handles the result for obtaining pavement crack disease.
Another aspect of the present invention proposes a kind of pavement crack Defect inspection system, including：
The measurement car that can be moved along track；
Laser generator on measurement car, is arranged for launching fan beam of laser light to road surface, should
Laser generator includes multiple planar laser generators, when being provided in road surface transmitting fan beam of laser light
The bending graticule AB of series winding can be formed on road surface；
Straight line laser image collecting device, is installed on measurement car, based on described in predetermined collection period collection
The bending graticule of series winding, obtains reticle image；
Odometer, the travel distance for calculating measurement car；
Information processing system, with one or more processors, and memory, wherein：Memory is set
Put for storing for data and program module, these program modules used in one or more of processors
Including：
The straight line laser image acquisition device modulus of periodicity block is controlled based on mileage；
For to the full spectrogram of reticle image progress is as fidelity and low pass filter processing and difference obtains to be measured
The module of the pulse elevation numerical imaging on road surface, filtering parameter and the bending graticule of the LPF are formed
Hot spot is related；
The inspection that image procossing obtains pavement crack disease is carried out for the pulse elevation numerical imaging to foregoing acquisition
Survey the module of result.
From the above technical solution of the present invention shows that, the present invention is oblique to road surface by using planar laser generator
Penetrate to form series winding bending graticule, bending mark of the image collector collection based on predetermined collection period collection series winding
Line, obtains light spot image, and mileage controller control collection period carries out high pass filter to the bending graticule of series winding
Ripple, obtains pulse elevation numerical imaging, compared with prior art the beneficial effects of the present invention are：Set up with
Lines are ordinate direction Y-axis, and zebra crossing is abscissa direction X-axis, lines and zebra crossing joining
For origin, pavement disease depth direction is the pulse elevation numerical imaging of Z axis, is distinguished using to light spot image
Low-pass filtering treatment and full spectrum fidelity processing are carried out, the full spectrum section numerical imaging that full spectrum fidelity processing is obtained
The LPF continuous cross-section numerical imaging obtained with low-pass filtering treatment carries out difference and obtains pavement crack disease
Pulse elevation numerical value figure, for example easily disease is counted with classifying according to quantitative elevation and width, kept away
The missing inspection problem for narrow crack and shallow fracture occur is exempted from, has realized the automated intelligent processing of pavement disease, solve
The water mark generally existed both at home and abroad using image photographic method, the pseudo- crack problem that oil stain is produced is realized complicated
Gray scale figure automatic interpretation, collection period is less than or equal to the bending that 100mm is easy to obtain continuous road surface series winding
Reticle image.
LPF and the filtering parameter of full spectrum fidelity processing can be by the width of hot spot, length, brightness,
Intensity, contrast etc. is selected, and according to actual situation suitable filtering parameter can be selected to carry out data
Collection, enable more accurately to realize the judgement of pavement crack disease.
The travel distance of measurement car is calculated using odometer, collection period can be accurately controlled.
It should be appreciated that all combinations of aforementioned concepts and the extra design described in greater detail below are only
One of the subject matter of the disclosure is can be viewed as in the case where such design is not conflicting
Point.In addition, all combinations of theme claimed are considered as a part for the subject matter of the disclosure.
Can be more fully appreciated with from the following description with reference to accompanying drawing present invention teach that foregoing and other side
Face, embodiment and feature.The present invention other additional aspects such as illustrative embodiments feature and/or have
Beneficial effect will be obvious in the following description, or by according to present invention teach that embodiment practice
In learn.
Brief description of the drawings
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, each identical or approximate phase shown in each figure
Same part can be indicated by the same numeral.For clarity, in each figure, not each
Part is labeled.Now, by example and various aspects of the invention will be described in reference to the drawings
Embodiment, wherein：
Fig. 1 is the flow chart for realizing pavement disease detection method of the present invention.
Fig. 2 is the structural representation of one of embodiment of the invention.
Embodiment
In order to know more about the technology contents of the present invention, especially exemplified by specific embodiment and institute's accompanying drawings are coordinated to be described as follows.
Each side with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the reality of many explanations
Apply example.It is not intended to cover all aspects of the invention for embodiment of the disclosure.It should be appreciated that being situated between above
The a variety of designs continued and embodiment, and those designs described in more detail below and embodiment can be with
Any one in many ways is implemented, because design disclosed in this invention and embodiment are not limited
In any embodiment.In addition, it is disclosed by the invention some aspect can be used alone, or with the present invention
It is disclosed otherwise any appropriately combined to use.
With reference to shown in Fig. 1, Fig. 2, the invention discloses a kind of pavement crack Defect inspection method, including it is following
Step:
Laser generator 12 launches laser beam to track, in the bending graticule of road surface M to be measured formation series windings
AB；Gathered based on predetermined collection period IMAQ control signal control straight line laser image collecting device 14
The bending graticule AB of series winding, obtains light spot image, in walking of the collection period based on the measurement car 1
Process control；Information processing system 11 carries out low-pass filtering treatment to light spot image, what low-pass filtering treatment was obtained
LPF continuous cross-section numerical imaging, the bending graticule institute shape of the filtering parameter and series winding of the LPF
Into hot spot it is related；Information processing system 11 carries out full spectrum fidelity processing, full spectrum fidelity processing to light spot image
Obtain composing section numerical imaging entirely, the bending graticule AB of the filtering parameter and series winding of the full spectrum fidelity processing
The hot spot formed is related；The full spectrum section numerical imaging and low-pass filtering treatment that full spectrum fidelity processing is obtained
Obtained LPF continuous cross-section numerical imaging carries out the pulse elevation numerical value that difference obtains pavement crack disease
Image；The result for obtaining pavement crack disease is handled the numerical imaging progress of pulse elevation.
As optional embodiment, the filtering parameter of LPF and full spectrum fidelity processing can be the width of hot spot
Degree, length, brightness, intensity, contrast etc., straight line laser image collecting device 14 can be according to reality
The suitable filtering parameter of situation selection carries out the collection of data, enables more accurately to realize pavement crack disease
Harmful judgement.
The areal deformation that design road surface wheel in use is rolled, environment and internal action are produced, is produced various
Disease, continuity elevation deformation disease flatness, rut, gathers around bag and surge etc. and represents, and saltant type is high
Cheng Bianhua such as crack, pit, broken etc., make to be that the design road surface of macroscopic plane becomes complicated bent originally
Face, therefore the substantive characteristics of crack and various pavement diseases is road surface elevation pulse change-show as elevation change
The depth and width and length of change, the problem of we in embodiments of the invention will be complex-curved carry out net
Lattice member numerical fitting, sets up to design road surface as basal plane, using lines as ordinate Y, and zebra crossing is sat to be horizontal
X is marked, vertical direction is Z, the short distance track coordinate range in section is calculated in data, divided by receipt collection point
For measurement data the Mesh Point Battle.As long as can strictly measure obtain the elevation numerical value of each road member grid then can be strict
Rebuild actual complex road surface.We carry out high-pass filtering in the solution of the present invention to complex road surface spatial spectrum
Processing then obtains the signal spectrum such as pulse deformation such as crack and small pit and sedimentation faulting of slab ends.
Especially：Crackle disease especially shows as the change of elevation, and our scheme is obtained by High frequency filter
Pulse elevation numerical imaging, high fdrequency component therein includes the depth of crack disease, width and length characteristic,
The quantitative automatic Intelligent treatment of crack disease is conveniently realized, solves and generally uses image photographic method both at home and abroad
The pseudo- crack problem that the water mark of presence, oil stain are produced, complicated gray scale figure automatic interpretation.
It is a kind of pavement disease crack detection system shown in Fig. 2, including：The measurement car 1 that can be moved along track；
Laser generator 12 on measurement car 1, is arranged for launching fan beam of laser light to road surface, should
Laser generator includes multiple planar laser generators, when being provided in road surface transmitting fan beam of laser light
The bending graticule AB of series winding can be formed on road surface；Straight line laser image collecting device 14, is installed on measurement car 1
On, the bending graticule of the series winding is gathered based on predetermined collection period, reticle image is obtained；Odometer 22,
It is installed on measurement car 1, the travel distance for calculating measurement car；Information processing system 11, with one
Or multiple processors, and memory.
Memory is arranged for storage for data and program mould used in one or more of processors
Block, these program modules include：The straight line laser image acquisition device cycle is controlled based on mileage
Module；For to the full spectrogram of reticle image progress is as fidelity and low pass filter processing and difference is treated
Survey the module of the pulse elevation numerical imaging on road surface, filtering parameter and the bending graticule institute shape of the LPF
It is related into hot spot；Image procossing, which is carried out, for the pulse elevation numerical imaging to foregoing acquisition obtains pavement crack
The module of the testing result of disease.
As preferred embodiment, straight line laser image collecting device includes being installed on same beam 2 and in straight
Multigroup CCD of line distribution, multigroup CCD are located at the surface of the bending graticule of the series winding.The Liang Yi
Zigzag is configured in a little embodiments.
As optional embodiment, the planar laser and the angle on road surface that planar laser generator is sent are less than 45
Degree, bottom and the ground level of planar laser generator are more than between 300mm, and multigroup planar laser generator
Adjustable angle.
As optional embodiment, multigroup planar laser generator and straight line laser image collecting device 14 are pacified
Loaded on same beam 2, reduce and eliminate systematic error.
From the above technical solution of the present invention shows that, the present invention by using planar laser generator 12 to road surface
Oblique fire forms the bending graticule AB of series winding, and straight line laser image collecting device 14 is based on predetermined collection period
The bending graticule B of series winding is gathered, light spot image is obtained, the bending mark of 11 pairs of series windings of information processing system is utilized
Line carries out full spectrum fidelity processing, and full spectrum fidelity processing obtains composing section numerical imaging entirely；Fidelity processing will be composed entirely
The LPF continuous cross-section numerical imaging that obtained full spectrum section numerical imaging is obtained with low-pass filtering treatment enters
Row difference obtains the pulse elevation numerical imaging of pavement crack disease, and further processing obtains crack disease, with
Prior art compare the beneficial effects of the present invention are：Using lines as ordinate direction Y-axis, zebra crossing is
Abscissa direction X-axis, lines are origin with zebra crossing joining, and pavement disease depth direction is Z axis
Pulse elevation numerical imaging, is handled using low-pass filtering treatment and full spectrum fidelity is carried out respectively to light spot image,
The full spectrum section numerical imaging that full spectrum fidelity processing is obtained and the LPF that low-pass filtering treatment is obtained are continuous
Section numerical imaging carries out difference and obtains the pulse elevation numerical value figure of pavement crack disease, it is to avoid appearance is narrow to be split
The missing inspection problem of seam and shallow fracture, realizes the automated intelligent processing of pavement disease, solves and generally adopt both at home and abroad
The water mark existed with image photographic method, the pseudo- crack problem that oil stain is produced realizes that complicated gray scale figure is automatic
Interpretation, and directly obtain by computer disposal the relevant information of pavement disease, it is ensured that security, collection
Cycle is less than or equal to the bending reticle image that 100mm is easy to obtain continuous road surface series winding.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.The present invention
Those of ordinary skill in the art, it is without departing from the spirit and scope of the present invention, each when that can make
The change and retouching planted.Therefore, the scope of protection of the present invention is defined by those of the claims.
Claims (10)
1. a kind of pavement crack Defect inspection method, it is characterised in that comprise the following steps:
Step 1, laser generator launch laser beam to track, and the bending graticule of series winding is formed on road surface to be measured；
Step 2, straight line laser image collecting device controlled based on predetermined collection period IMAQ control signal
The bending graticule of series winding in acquisition step 1, obtains light spot image, and the collection period is based on the measurement
The walking mileage control of platform；
Step 3, information processing system are carried out at low-pass filtering treatment, LPF to the light spot image of step 2
Manage obtained LPF continuous cross-section numerical imaging, the bending of the filtering parameter and series winding of the LPF
The hot spot that graticule is formed is related；
Step 4, information processing system are carried out to the light spot image of step 2 at full spectrum fidelity processing, full spectrum fidelity
Reason obtains composing section numerical imaging entirely, the bending graticule institute of the filtering parameter and series winding of the full spectrum fidelity processing
The hot spot of formation is related；
It is low that step 5, full spectrum section numerical imaging and low-pass filtering treatment that full spectrum fidelity processing is obtained are obtained
Pass filter continuous cross-section numerical imaging carries out the pulse elevation numerical imaging that difference obtains pavement crack disease；
Step 6, the result for obtaining pavement crack disease is handled the pulse elevation numerical imaging progress in step 5.
2. pavement crack Defect inspection method according to claim 1, it is characterised in that the step
The filtering parameter that full spectrum fidelity processing is chosen in low-pass filtering treatment and step 4 in 3 is the width or length of hot spot
Degree.
3. pavement crack Defect inspection method according to claim 1, it is characterised in that the step
The filtering parameter that full spectrum fidelity processing is chosen in low-pass filtering treatment and step 4 in 3 is the intensity or bright of hot spot
Degree.
4. pavement crack Defect inspection method according to claim 1, it is characterised in that the step
The filtering parameter that full spectrum fidelity processing is chosen in low-pass filtering treatment and step 4 in 3 is the brightness or contrast of hot spot
Degree.
5. pavement crack Defect inspection method according to claim 1, it is characterised in that the collection
Cycle is less than or equal to 100mm.
6. pavement crack Defect inspection method according to claim 1, it is characterised in that described information
Processing system is configured to be produced using lines as the reverse Y-axis of ordinate, lateral road according to the result of high-pass filtering
Line is abscissa direction X-axis, and lines are origin with zebra crossing joining, and pavement disease depth direction is Z
The pulse elevation numerical imaging in week.
7. a kind of system of pavement crack disease, it is characterised in that including：
The measurement car that can be moved along track；
Laser generator on measurement car, is arranged for launching fan beam of laser light to road surface, should
Laser generator includes multiple planar laser generators, when being provided in road surface transmitting fan beam of laser light
The bending graticule of series winding can be formed on road surface；
Straight line laser image collecting device, is installed on measurement car, based on described in predetermined collection period collection
The bending graticule of series winding, obtains reticle image；
Odometer, is installed on measurement car, the travel distance for calculating measurement car；
Information processing system, with one or more processors, and memory, wherein：Memory is set
Put for storing for data and program module, these program modules used in one or more of processors
Including：
The straight line laser image acquisition device modulus of periodicity block is controlled based on mileage；
For to the full spectrogram of reticle image progress is as fidelity and low pass filter processing and difference obtains to be measured
The module of the pulse elevation numerical imaging on road surface, filtering parameter and the bending graticule of the LPF are formed
Hot spot is related；
The inspection that image procossing obtains pavement crack disease is carried out for the pulse elevation numerical imaging to foregoing acquisition
Survey the module of result.
8. the system of pavement crack disease according to claim 7, it is characterised in that the laser mark
Line image harvester includes being installed on same beam and linear distributing multigroup CCD, and this is multigroup CCD
In the surface of the bending graticule of the series winding.
9. the system of pavement crack disease according to claim 7, it is characterised in that the plane swashs
The planar laser and the angle on road surface that optical generator is sent are less than 45 degree, bottom and the ground of planar laser generator
Face is highly more than the adjustable angle between 300mm, and multigroup planar laser generator.
10. the system of pavement crack disease according to claim 8 or claim 9, it is characterised in that described
Beam is installed altogether for multigroup planar laser generator and straight line laser image collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151196.3A CN107201713A (en) | 2016-03-16 | 2016-03-16 | Pavement crack Defect inspection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151196.3A CN107201713A (en) | 2016-03-16 | 2016-03-16 | Pavement crack Defect inspection method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107201713A true CN107201713A (en) | 2017-09-26 |
Family
ID=59904046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610151196.3A Withdrawn CN107201713A (en) | 2016-03-16 | 2016-03-16 | Pavement crack Defect inspection method and system |
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| Country | Link |
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| CN (1) | CN107201713A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765376A (en) * | 2018-05-03 | 2018-11-06 | 武汉武大卓越科技有限责任公司 | A kind of line scanning three-dimensional pavement data component analysis method |
| CN112070756A (en) * | 2020-09-15 | 2020-12-11 | 河北工业大学 | Three-dimensional road surface disease measuring method based on unmanned aerial vehicle oblique photography |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996031655A1 (en) * | 1995-04-03 | 1996-10-10 | Greenwood Engineering Aps | Method and apparatus for non-contact measuring of the deflection of roads or rails |
| CN104131509A (en) * | 2014-06-20 | 2014-11-05 | 南京理工技术转移中心有限公司 | Laser measuring instrument for road surface texture structure and structure depth |
| CN107190621A (en) * | 2016-03-15 | 2017-09-22 | 南京理工技术转移中心有限公司 | A kind of pavement crack Defect inspection system and method |
-
2016
- 2016-03-16 CN CN201610151196.3A patent/CN107201713A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996031655A1 (en) * | 1995-04-03 | 1996-10-10 | Greenwood Engineering Aps | Method and apparatus for non-contact measuring of the deflection of roads or rails |
| CN104131509A (en) * | 2014-06-20 | 2014-11-05 | 南京理工技术转移中心有限公司 | Laser measuring instrument for road surface texture structure and structure depth |
| CN107190621A (en) * | 2016-03-15 | 2017-09-22 | 南京理工技术转移中心有限公司 | A kind of pavement crack Defect inspection system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765376A (en) * | 2018-05-03 | 2018-11-06 | 武汉武大卓越科技有限责任公司 | A kind of line scanning three-dimensional pavement data component analysis method |
| CN108765376B (en) * | 2018-05-03 | 2022-03-22 | 武汉光谷卓越科技股份有限公司 | Linear scanning three-dimensional pavement data component analysis method |
| CN112070756A (en) * | 2020-09-15 | 2020-12-11 | 河北工业大学 | Three-dimensional road surface disease measuring method based on unmanned aerial vehicle oblique photography |
| CN112070756B (en) * | 2020-09-15 | 2021-03-30 | 河北工业大学 | A Pavement Stereo-Disease Measurement Method Based on UAV Oblique Photography |
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Application publication date: 20170926 |
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