CN109631849A - A kind of high gradient slope crag measurement method based on oblique photograph - Google Patents
A kind of high gradient slope crag measurement method based on oblique photograph Download PDFInfo
- Publication number
- CN109631849A CN109631849A CN201811538988.1A CN201811538988A CN109631849A CN 109631849 A CN109631849 A CN 109631849A CN 201811538988 A CN201811538988 A CN 201811538988A CN 109631849 A CN109631849 A CN 109631849A
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- China
- Prior art keywords
- oblique photograph
- crag
- high gradient
- massif
- gradient slope
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Classifications
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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
Abstract
A kind of high gradient slope crag measurement method based on oblique photograph, to adapt to high gradient slope crag crack measurement request.Include the following steps: that oblique photograph is navigated and flies data prediction；Oblique photograph aerial triangulation and the setting of engineering coordinate system；Ground control-point survey；Massif full angle outdoor scene three-dimension modeling；It is measured based on outdoor scene threedimensional model crag.The present invention obtains high gradient slope all angles image using oblique photograph technology, pass through the aerial triangulation and control point measurement under engineering coordinate system, establish the high gradient slope massif outdoor scene threedimensional model for having true coordinate, massif can be measured from all angles, be drawn, to solve massif side crag measurement difficult problem；This method is easily operated, and compared with traditional manual measurement, operating efficiency is high.
Description
Technical field
The present invention relates to Mapping remote sensing technology field, in particular to the crag measurement method of a kind of high gradient slope.
Background technique
With the progress of aerophotogrammetry technology and enriching for data obtaining means, oblique photograph measurement is international mapping
The new and high technology that field grew up in recent years, it has overturned the office that previous orthography can only be shot from vertical angle
Limit, by carrying more sensors on same flying platform, while from five different angles such as vertical, four inclinations
Acquire image, comprehensive displaying atural object situation that can be visual and clear.
Traditional massif crag crack area multidigit Yushan Hill body side surface, traditional aeroplane photography means are difficult to obtain, lean on mostly
It manually measures, operating efficiency and safety can not ensure.By oblique photograph technology can comprehensive acquisition massif it is each
The image of angle, and true three-dimensional live model is generated, model has true coordinate, directly can measure and draw, for obtaining
Crag crack entity is taken, is used for subsequent design.
Summary of the invention
The high gradient slope crag measurement method based on oblique photograph that technical problem to be solved by the invention is to provide a kind of,
To adapt to high gradient slope crag crack measurement request.
It is as follows that the present invention solves the technical solution that above-mentioned technical problem is taken:
A kind of high gradient slope crag measurement method based on oblique photograph of the invention, includes the following steps:
1. oblique photograph, which is navigated, flies data prediction；
2. oblique photograph aerial triangulation and the setting of engineering coordinate system；
3. ground control-point survey；
4. massif full angle outdoor scene three-dimension modeling；
5. being measured based on outdoor scene threedimensional model crag.
The invention has the advantages that obtaining high gradient slope all angles image using oblique photograph technology, pass through engineering
Aerial triangulation and control point under coordinate system measure, and establish the high gradient slope massif outdoor scene three-dimensional for having true coordinate
Model can measure massif from all angles, be drawn, to solve massif side crag measurement difficult problem；The party
Method is easily operated, and compared with traditional manual measurement, operating efficiency is high.
Detailed description of the invention
This specification includes following three width attached drawing:
Fig. 1 oblique photograph schematic diagram；
Fig. 2 control points layout schematic diagram；
Fig. 3 is crag crack schematic diagram；
Specific embodiment
The invention will be further described with sample is implemented with reference to the accompanying drawing.
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of high gradient slope crag measurement method based on oblique photograph of the invention, including
Following steps:
1. oblique photograph, which is navigated, flies data prediction；
2. oblique photograph aerial triangulation and the setting of engineering coordinate system, faced by oblique photograph acquisition massif,
Five side view, lower view angle images.Each lens video is divided into one group, camera parameter is set, POS data is introduced and engineering is only
Vertical coordinate system, carries out aerial triangulation；
3. ground control-point survey.After checking that aerial triangulation is qualified, control point measurement is carried out, with traditional aeroplane photography
Measurement is different, and control point measurement the piece number is The more the better, and precision of control point is checked after adjustment；
4. massif full angle outdoor scene three-dimension modeling, according to aerial triangulation achievement, piecemeal carries out massif full angle
Outdoor scene threedimensional model generates, and the model of generation has accurate spatial information；
5. based on outdoor scene threedimensional model crag measure, the step 5. in, by threedimensional model import stereoplotting software (such as
Tie up EPS in Tsing-Hua University mountain) in, accurate coordinate information is directly measured and drawn out, massif all directions crag processed is directly surveyed wherein, splits
Seam, and export as the general * .dwg format graphics of design.
Personnel can be obtained the present invention is based on oblique photograph technology to be difficult to reach high massif all-around video information, for passing
System boat, which takes the photograph the massif side grain that can not reflect, clearly to be shown, crag, crack measurement are provided.Massif outdoor scene threedimensional model is sat
Mark system is the engineering independent coordinate system that achievement needs, and does not need any transformational relation, and the crag crack for measuring and drawing is straight
Fill sufficient engineering design needs.It measures and survey work directly carries out on massif three-dimensional entity model, the achievement of acquisition is direct
It is three-dimensional true coordinate, does not need measurement in space work.
Claims (5)
1. a kind of high gradient slope crag measurement method based on oblique photograph, includes the following steps:
1. oblique photograph, which is navigated, flies data prediction；
2. oblique photograph aerial triangulation and the setting of engineering coordinate system；
3. ground control-point survey；
4. massif full angle outdoor scene three-dimension modeling；
5. being measured based on outdoor scene threedimensional model crag.
2. a kind of high gradient slope crag measurement method based on oblique photograph as described in claim 1, it is characterized in that: the step
Suddenly 2. in, by oblique photograph obtain massif face, five side view, lower view angle images；Each lens video is divided into one group,
Camera parameter is set, POS data and engineering independent coordinate system are introduced, carries out aerial triangulation.
3. a kind of high gradient slope crag measurement method based on oblique photograph as described in claim 1, it is characterized in that: the step
Suddenly 3. in, check and carry out ground control-point survey after aerial triangulation is qualified, control point checks control point after measuring piece adjustment
Precision.
4. a kind of high gradient slope crag measurement method based on oblique photograph as described in claim 1, it is characterized in that: the step
Suddenly 4. in, according to aerial triangulation achievement, piecemeal carries out massif full angle outdoor scene threedimensional model and generates, and the model of generation has
Accurate spatial information.
5. a kind of high gradient slope crag measurement method based on oblique photograph as described in claim 1, it is characterized in that: the step
Suddenly 5. in, by threedimensional model import stereoplotting software in, directly measure and draw out accurate coordinate information, wherein directly survey
Massif all directions crag processed, crack, and export as design general format figure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538988.1A CN109631849A (en) | 2018-12-17 | 2018-12-17 | A kind of high gradient slope crag measurement method based on oblique photograph |
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| CN201811538988.1A CN109631849A (en) | 2018-12-17 | 2018-12-17 | A kind of high gradient slope crag measurement method based on oblique photograph |
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| CN109631849A true CN109631849A (en) | 2019-04-16 |
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| CN201811538988.1A Pending CN109631849A (en) | 2018-12-17 | 2018-12-17 | A kind of high gradient slope crag measurement method based on oblique photograph |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455256A (en) * | 2019-07-30 | 2019-11-15 | 西安科技大学 | Ground settlement observation method based on unmanned plane oblique photograph measurement |
| CN113393577A (en) * | 2021-05-28 | 2021-09-14 | 中铁二院工程集团有限责任公司 | Oblique photography terrain reconstruction method |
| CN113946982A (en) * | 2021-11-19 | 2022-01-18 | 中铁二院工程集团有限责任公司 | Method for acquiring dangerous rock body topographic profile |
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| CN110455256A (en) * | 2019-07-30 | 2019-11-15 | 西安科技大学 | Ground settlement observation method based on unmanned plane oblique photograph measurement |
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Application publication date: 20190416 |