CN110211233A - Earth's surface deformation analysis method based on ground control point - Google Patents
Earth's surface deformation analysis method based on ground control point Download PDFInfo
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- CN110211233A CN110211233A CN201910604598.8A CN201910604598A CN110211233A CN 110211233 A CN110211233 A CN 110211233A CN 201910604598 A CN201910604598 A CN 201910604598A CN 110211233 A CN110211233 A CN 110211233A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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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
- G06T17/05—Geographic models
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/04—Indexing scheme for image data processing or generation, in general involving 3D image data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/44—Morphing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
- G06T2219/20—Indexing scheme for editing of 3D models
- G06T2219/2021—Shape modification
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Abstract
The present invention relates to low latitude digital aerial surveying fields, disclose a kind of earth's surface deformation analysis method based on ground control point, solve the problems, such as that existing analysis method cannot reflect whole deformation body continuously dynamic deformation process.Ground control point is set around the first deformable body at the scene of the present invention, and ground control point is measured, measures the coordinate information and elevation information of ground control point；Low latitude digital photogrammetry is carried out to deformable body at times again, obtains the digitized video of deformable body deformation day part；Surface control point correspondence is recycled, each single-point different periods location information is tracked and identified addition, deformable body single-point coordinate overall process motion track is obtained, and accordingly generate deformable body scatterplot flow field figure, whole deformation process is analyzed.The present invention is suitable for earth's surface deformation analysis.
Description
Technical field
The present invention relates to low latitude digital aerial surveying fields, in particular to the earth's surface deformation point based on ground control point
Analysis method.
Background technique
Currently, it is following (software is different, and mechanism is similar) to carry out deformation analysis basic procedure to deformable body: first using three-dimensional mould
Type generates software and restores to deformation front and back site contour, and generates DEM figure.With Global Mapper software to deformation before
The DEM digital elevation model of (or different distortion period) is overlapped calculating afterwards, and superposition calculation achievement is imported surfer software
Deflection is analyzed.Such method is only capable of before and after comparing same ground point deformation, the variation degree of each point height in plane, and
Generate isogram.Though in figure can on intuitive display plane each region elevation variation degree, due to can not be in deformable body
The mobile identifiable control point of covariant body surface, lacks the corresponding relationship between different periods single-point, therefore the prior art is not
Can explain the problem of which the same increased substance of place landform come from or the substance of reduction is gone to which, cannot reflect one it is continuous
Change procedure is only capable of speculating by analysis.
From the foregoing, it will be observed that the prior art is only capable of accomplishing that the period compares, i.e. the comparison of any one or more period deformations front and back,
But due to lacking single-point deformation locus, it cannot reflect whole deformation body continuously dynamic deformation process.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of earth's surface deformation analysis method based on ground control point, solve
Certainly existing analysis method cannot reflect whole deformation body continuously dynamic deformation process the problem of.
To solve the above problems, the technical solution adopted by the present invention is that: the earth's surface deformation analysis side based on ground control point
Method includes the following steps:
A., the ground control point that will not be deformed is set around deformable body at the scene, and ground control point is measured, is surveyed
Obtain the coordinate information and elevation information of ground control point；
B. low latitude digital photogrammetry is carried out to deformable body at times, obtains the digitized video of deformable body deformation day part；
C. the digitized video of deformable body day part is imported into three-dimensional software, adds phase by different time points in three-dimensional software
Block is answered, identifies the ground control point around deformable body in each block respectively, and inputs the coordinate information and height of ground control point
Journey information calculates the threedimensional model for generating each time point deformable body, and ticks deformable body boundary line；
D. it identifies each ground control point in each threedimensional model, and is numbered in certain sequence；
E. each block is aligned by ground control point, obtains the distribution situation of all the points in same model；
F. the ground control point of undeformed place's overlapping is rejected；
G. the same ground control point of different location in model is carried out in chronological order according to the number of ground control point
Connection generates connecting line segment, exports each ground control point track line segment using the connecting line segment of each ground control point；
H. deformable body boundary line and each point deformation locus line are imported in the software that can recognize three-dimensional coordinate information, indicate rail
Mark moving direction obtains each scatterplot flow field of deformable body track, is carried out by deformable body each scatterplot flow field track to whole deformation process
Analysis.
Further, in step G, if certain ground control point is toppled after deformation, in export ground control point rail
It needs to indicate when trace segments.Because there is a kind of situation, earth's surface deformation, which is collapsed, buries ground control point, can not just be connected
It connects, but does not represent undeformed at this and put and be removed, therefore need to indicate.
Specifically, the three-dimensional software can be photoscan in step C.
Specifically, can recognize that the software of three-dimensional coordinate information can be AUTO CAD or MAPGIS in step H.
The beneficial effects of the present invention are: in order to provide more true complete data to earth's surface deformation analysis, to any list
Point is accomplished to can be traced in certain precision, and completely reflects its motion profile in deformation process, track of the present invention to each point
Analysis set, by each single-point deformation locus it can be concluded that the dynamic whole deformation process of whole deformation body, realizes whole deformation body
Continuous dynamic monitoring.The method is in the analysis of damming dam deformation using more successful.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is each block load schematic diagram of photoscan；
Fig. 3 is each ground control point reference numerals schematic diagram of single block；
Fig. 4 is same point displacement diagram after block merges；
Fig. 5 is each scatterplot flow field track schematic diagram of deformable body.
Specific embodiment
In order to solve the problems, such as that existing analysis method cannot reflect whole deformation body continuously dynamic deformation process, the present invention
Using surface control point correspondence, each single-point different periods location information is tracked and identified addition, obtains deformable body
Single-point coordinate overall process motion track, and deformable body scatterplot flow field figure is accordingly generated, whole deformation process is analyzed.Such as Fig. 1
It is shown, it is of the invention specific steps are as follows:
A., the ground control point that will not be deformed is set around deformable body at the scene, and ground control point is measured, is surveyed
Obtain the coordinate information and elevation information of ground control point；
B. low latitude digital photogrammetry is carried out to deformable body at times, obtains the digitized video of deformable body deformation day part；
C. the digitized video of deformable body day part is imported into three-dimensional software, adds phase by different time points in three-dimensional software
Block is answered, identifies the ground control point around deformable body in each block respectively, and inputs the coordinate information and height of ground control point
Journey information calculates the threedimensional model for generating each time point deformable body, and ticks deformable body boundary line；
D. it identifies each ground control point in each threedimensional model, and is numbered in certain sequence；
E. each block is aligned by ground control point, obtains the distribution situation of all the points in same model；
F. the ground control point of undeformed place's overlapping is rejected；
G. the same ground control point of different location in model is carried out in chronological order according to the number of ground control point
Connection generates connecting line segment, exports each ground control point track line segment using the connecting line segment of each ground control point；
H. deformable body boundary line and each point deformation locus line are imported in the software that can recognize three-dimensional coordinate information, indicate rail
Mark moving direction obtains each scatterplot flow field of deformable body track, is carried out by deformable body each scatterplot flow field track to whole deformation process
Analysis.
Below with reference to embodiment, the present invention will be further described.
Embodiment provides a kind of earth's surface deformation analysis method based on ground control point, and steps are as follows:
1. deformable body is all at the scene with arrangement principle at a certain distance on deformable body according to precision and concrete condition requirement
Enclose the dedicated ground control point (ground control point) that will not permanently deform of setting.Ground control point: it is called phase
Control point, be in the digital aerial surveying of low latitude, the basis of control encryption and mapping, field lay as required after first to the point
Ground survey is carried out, the later period compares with photogrammetric image, carries out the work such as coordinate verification and conversion, precision checking.
2. a pair ground control point measures, the coordinate information and elevation information of ground control point are measured.
3. carrying out low latitude digital photogrammetry to deformable body at times, the digitized video of deformable body deformation day part is obtained.
4. the digitized video of deformable body day part is imported into three-dimensional software (by taking photoscan as an example), as shown in Fig. 2,
Respective block is added by different time points in three-dimensional software, identifies the ground control point around deformable body in each block respectively, and
The coordinate information and elevation information of ground control point are inputted, calculates the threedimensional model for generating each time point deformable body, and tick change
Body boundary line.Wherein, the generation of threedimensional model and delineating for boundary line are common software function, here no longer in detail
It states.
5. each ground control point in each threedimensional model is identified, as shown in figure 3, being simultaneously numbered in certain sequence.Fig. 3 and
In Fig. 4, by taking number " 1-2 " as an example, the coding rule of embodiment are as follows: " 1 " indicates the 1st ground control point, when " 2 " indicate the 2nd
Section.
6. each block is aligned by ground control point, the distribution situation of all the points in same model is obtained.
7. rejecting the ground control point of undeformed place's overlapping.
8. as shown in figure 4, according to the number of ground control point by the same ground control point of different location in model on time
Between be sequentially attached, generate connecting line segment, the connecting line segment of each ground control point utilized to export each ground control point trajectory line
Section.Because there is a kind of situation, earth's surface deformation, which is collapsed, buries ground control point, can not just be attached, but do not represent at this not
It deforms and puts and be removed, therefore need to be indicated when exporting ground control point track line segment
9. can recognize three-dimensional coordinate information software (such as AUTO CAD, MAPGIS) in import deformable body boundary line and
Each point deformation locus line indicates track moving direction as shown in figure 5, obtaining each scatterplot flow field of deformable body track and passes through deformable body
Each scatterplot flow field track is analyzed by whole deformation process.
After above-mentioned steps, the case where deformable body whole deformation process can be reflected from figure, also divided in combination with other achievements
Analysis (such as orthography, DEM change isogram, contour map), forms complete set analytical plan.
Claims (4)
1. the earth's surface deformation analysis method based on ground control point, which comprises the steps of:
A., the ground control point that will not be deformed is set around deformable body at the scene, and ground control point is measured, measures ground
The coordinate information and elevation information at face control point；
B. low latitude digital photogrammetry is carried out to deformable body at times, obtains the digitized video of deformable body deformation day part；
C. the digitized video of deformable body day part is imported into three-dimensional software, adds respective area by different time points in three-dimensional software
Block identifies the ground control point around deformable body in each block respectively, and inputs the coordinate information and elevation letter of ground control point
Breath calculates the threedimensional model for generating each time point deformable body, and ticks deformable body boundary line；
D. it identifies each ground control point in each threedimensional model, and is numbered in certain sequence；
E. each block is aligned by ground control point, obtains the distribution situation of all the points in same model；
F. the ground control point of undeformed place's overlapping is rejected；
G. the same ground control point of different location in model is attached in chronological order according to the number of ground control point,
Connecting line segment is generated, exports each ground control point track line segment using the connecting line segment of each ground control point；
H. deformable body boundary line and each point deformation locus line are imported in the software that can recognize three-dimensional coordinate information, are indicated track and are moved
Dynamic direction, obtains each scatterplot flow field of deformable body track, is analyzed by each scatterplot flow field of deformable body track whole deformation process.
2. the earth's surface deformation analysis method based on ground control point as described in claim 1, which is characterized in that in step G, such as
Fruit ground control point is toppled after deformation, then needs to indicate when exporting ground control point track line segment.
3. the earth's surface deformation analysis method based on ground control point as described in claim 1, which is characterized in that in step C, institute
Stating three-dimensional software is photoscan.
4. the earth's surface deformation analysis method based on ground control point as described in claim 1, which is characterized in that, can in step H
The software for identifying three-dimensional coordinate information is AUTO CAD or MAPGIS.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536945A (en) * | 2020-04-16 | 2020-08-14 | 中国地质科学院水文地质环境地质研究所 | Ground deformation monitoring system and monitoring method based on continuous fiber composite section |
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| CN105758327A (en) * | 2016-05-16 | 2016-07-13 | 总装备部工程设计研究总院 | Three-dimensional photography monitoring system and method for deformation of buildings |
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| CN105806245A (en) * | 2016-05-16 | 2016-07-27 | 总装备部工程设计研究总院 | Three-dimensional photographic monitoring method of building deformation |
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| CN105783878A (en) * | 2016-03-11 | 2016-07-20 | 三峡大学 | Small unmanned aerial vehicle remote sensing-based slope deformation detection and calculation method |
| CN105758327A (en) * | 2016-05-16 | 2016-07-13 | 总装备部工程设计研究总院 | Three-dimensional photography monitoring system and method for deformation of buildings |
| CN105806245A (en) * | 2016-05-16 | 2016-07-27 | 总装备部工程设计研究总院 | Three-dimensional photographic monitoring method of building deformation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111536945A (en) * | 2020-04-16 | 2020-08-14 | 中国地质科学院水文地质环境地质研究所 | Ground deformation monitoring system and monitoring method based on continuous fiber composite section |
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Application publication date: 20190906 |