CN110426021A - Utilize the map surveying method and system of photogrammetric threedimensional model - Google Patents
Utilize the map surveying method and system of photogrammetric threedimensional model Download PDFInfo
- Publication number
- CN110426021A CN110426021A CN201910750500.XA CN201910750500A CN110426021A CN 110426021 A CN110426021 A CN 110426021A CN 201910750500 A CN201910750500 A CN 201910750500A CN 110426021 A CN110426021 A CN 110426021A
- Authority
- CN
- China
- Prior art keywords
- aerial
- carried out
- photogrammetric
- triangulation
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01C11/04—Interpretation of pictures
- G01C11/30—Interpretation of pictures by triangulation
- G01C11/34—Aerial triangulation
Abstract
The invention discloses a kind of map surveying method and system using photogrammetric threedimensional model, are related to geography information mapping, the Aerial photography image on ground is directed to including obtaining；Aerial triangulation is carried out based on Aerial photography image；Carry out the acquisition of ground elevation vector data；Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.Using the filmed image for obtaining ground of taking photo by plane, manual labor amount is saved, shooting efficiency is high.Aerial triangulation is carried out based on Aerial photography image later, according to photogrammetry principles, control point encryption is carried out indoors, acquires elevation and the plan-position of pass point, acquires data for subsequent three-dimensional modeling.Building roof vector data is obtained, orthography data are corrected using this data, eliminates building height displacement.
Description
Technical field
The present invention relates to geography information mappings, more specifically, it relates to a kind of ground using photogrammetric threedimensional model
Shape figure measurement method and system.
Background technique
With the continuous propulsion of urban informationization, digital city as urban development infrastructure just by more and more
Attention, be increasingly becoming urban planning, the indispensable basic data of management is relied on.And it is embodied as digital city core
Three-dimensional city information model, it is considered to be the mankind grasp the best mode of urban information so far, its outlet makes the mankind
Primary leap is obtained describing and analyzing on the transaction information of city space --- from the breakthrough of 2 d-to-3 d.Three-dimensional city is built
Mould has become one of the core content of digital city spatial frame data, many cities carried out successively cybercity construction and
Using work, threedimensional model construction in city also develops from the starting stage both in depth and in breadth.
In recent years, " digital city " and " smart city " investment was continuously increased with country, " digital city " construction
Paces are constantly accelerated.The three-dimensionalization realization in city is the important component of " smart city " construction, and three-dimensional city
It is the three-dimensional modeling in city that, which there is a big chunk task in city, and traditional three-dimensional modeling mainly includes following approach: manually being built
Mould (using modeling tool), photogrammetric modeling and laser scanning modeling.
Traditional three-dimensional modeling has their own advantages and disadvantage, artificial modeling using modeling tool (such as: 3DMax etc.) carry out
Three-dimensional modeling, the disadvantage is that cost of investment is high, needs a large amount of manpower and material resources its advantage is that three-dimensional scenic is beautiful；It is photogrammetric
Modeling is the rapid build that threedimensional model is carried out using photogrammetric technology, its advantage is that single model construction ratio is very fast, disadvantage
It is also obvious that the threedimensional model built needs the later period to carry out artificial treatment, it is also desirable to a large amount of manpower and material resources；Laser scanning modeling
It is that point cloud model is generated using laser scanner technique, its advantage is that model construction ratio is faster, the disadvantage is that data volume is bigger, swashs
Optical scanning less than place have the blind area of modeling, such as the roof in house.
Summary of the invention
In view of the deficienciess of the prior art, the first object of the present invention is to provide a kind of photogrammetric three-dimensional mould of utilization
The map surveying method of type has the advantages that modeling speed is fast and artificial treatment amount is few.
To achieve the above object, the present invention provides the following technical scheme that
A kind of map surveying method using photogrammetric threedimensional model, including
Obtain the Aerial photography image for being directed to ground；
Aerial triangulation is carried out based on Aerial photography image；
Carry out the acquisition of ground elevation vector data；
Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；
In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
By adopting the above technical scheme, using the filmed image for obtaining ground of taking photo by plane, manual labor amount, shooting efficiency are saved
It is high.Aerial triangulation is carried out based on Aerial photography image later, according to photogrammetry principles, control point is carried out indoors and adds
It is close, elevation and the plan-position of pass point are acquired, acquires data for subsequent three-dimensional modeling.Acquire building roof vector number
According to, orthography data are corrected using this data, eliminate building height displacement.Later according to aerial triangulation result
And ground elevation vector data establishes earth's surface three-D profile, then in conjunction with Aerial photography image, assigns to earth's surface three-D profile
Image information then establishes threedimensional model.
Further, the aerial triangulation includes:
The relative orientation result determined according to digital aerial imagery；
IMU/DGPS/GPS data and photo control point coordinate are combined to carry out absolute orientation later；
Aerial triangulation result is calculated according to absolute orientation result.
Further, further include
In the sky when triangulation, DEM acquisition is carried out；
Based on DEM collection result, DOM production is carried out；
According to MOM and ground elevation vector data, TDOM production is carried out；
DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
Further, when establishing earth's surface three-D profile, data are acquired herein in connection with DEM.
In view of the deficienciess of the prior art, the second object of the present invention is to provide a kind of photogrammetric three-dimensional mould of utilization
The map surveying system of type has the advantages that modeling speed is fast and artificial treatment amount is few.
To achieve the above object, the present invention provides the following technical scheme that
A kind of map surveying system using photogrammetric threedimensional model, including processor and memory, the memory are deposited
Instruction set is contained to call for the processor to implement function such as:
Obtain the Aerial photography image for being directed to ground；
Aerial triangulation is carried out based on Aerial photography image；
Carry out the acquisition of ground elevation vector data；
Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；
In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
By adopting the above technical scheme, using the filmed image for obtaining ground of taking photo by plane, manual labor amount, shooting efficiency are saved
It is high.Aerial triangulation is carried out based on Aerial photography image later, according to photogrammetry principles, control point is carried out indoors and adds
It is close, elevation and the plan-position of pass point are acquired, acquires data for subsequent three-dimensional modeling.Acquire building roof vector number
According to, orthography data are corrected using this data, eliminate building height displacement.Later according to aerial triangulation result
And ground elevation vector data establishes earth's surface three-D profile, then in conjunction with Aerial photography image, assigns to earth's surface three-D profile
Image information then establishes threedimensional model.
Further, described instruction collection is also called for the processor to implement function such as:
The relative orientation result determined according to digital aerial imagery；
IMU/DGPS/GPS data and photo control point coordinate are combined to carry out absolute orientation later；
Aerial triangulation result is calculated according to absolute orientation result.
Further, described instruction collection is also called for the processor to implement function such as:
In the sky when triangulation, DEM acquisition is carried out；
Based on DEM collection result, DOM production is carried out；
According to MOM and ground elevation vector data, TDOM production is carried out；
DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
Further, described instruction collection is also called for the processor to implement function such as:
When establishing earth's surface three-D profile, data are acquired herein in connection with DEM.
In conclusion the invention has the following advantages:
1. obtaining the filmed image on ground using taking photo by plane, manual labor amount is saved, shooting efficiency is high；
2. carrying out aerial triangulation based on Aerial photography image, according to photogrammetry principles, control point encryption is carried out indoors,
Elevation and the plan-position of pass point are acquired, acquires data for subsequent three-dimensional modeling；
3. acquiring building roof vector data, orthography data are corrected using this data, eliminate building projection
Difference.
Detailed description of the invention
Fig. 1 is that the flow diagram of the map surveying method of photogrammetric threedimensional model is utilized in the present invention；
Fig. 2 is that the functional block diagram of the map surveying system of photogrammetric threedimensional model is utilized in the present invention.
In figure: 1, processor；2, memory.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention will be described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Embodiment 1
A kind of map surveying method using photogrammetric threedimensional model, referring to Fig.1, including step S101 to step S105.
Step S101: the Aerial photography image for being directed to ground is obtained.
Obtaining and being directed to the Aerial photography image on ground includes that aircraft is taken photo by plane, satellite remote sensing is shot, can be according to the big of survey area
Small reasonable selection, or the two is combined.
Step S102: aerial triangulation is carried out based on Aerial photography image.
Aerial triangulation includes: the relative orientation result determined according to digital aerial imagery；IMU/DGPS/ is combined later
GPS data and photo control point coordinate carry out absolute orientation；Aerial triangulation result is calculated according to absolute orientation result.
Specifically, aerial triangulation is, according to photogrammetry principles, to be carried out control point by a small amount of field control point and added
It is close, elevation and the plan-position of pass point are acquired, and the elements of exterior orientation of every image is calculated simultaneously.
Step S103: the acquisition of ground elevation vector data is carried out.
Using full digital photogrammetric system, building geometrical characteristic information is acquired under steric environment, obtains building
Geometric vector data correct orthography data using this data, eliminate building height displacement.
Step S104: earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data.
Using professional three-dimensional building object Software for producing, it is based on triangulation result and ground elevation vector data, automatically
Generate earth's surface three-D profile.
Step S105: in conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
In conjunction with Aerial photography image, the toning of earth's surface three-D profile, feature refinement, shape amendment and shadow are handled, shape
At it is final be three-dimensional model diagram.
Aerial triangulation is carried out based on Aerial photography image, empty three encryption is exactly to determine the entire positioning for surveying area and determine
Appearance is a step process particularly important in full digital photogrammetric to obtain the absolute coordinate for surveying arbitrary point in area.
In the sky when triangulation, DEM acquisition is carried out；Based on DEM collection result, DOM production is carried out；According to MOM and
Ground elevation vector data carries out TDOM production；DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
When establishing earth's surface three-D profile, data are acquired herein in connection with DEM.It is obtained for guarantee and meets precision is asked in a flat iron plate for making cakes 1:
The orthography of 1000 scale bars need to make the DEM for meeting and just penetrating and correcting rank.In manufacturing process, Auto-matching elevational point
Three-dimensional editor is carried out to each Grid DEM by defined mesh spacing, all grid points is made to cut quasi- ground.Elevational point editor passes through
Three-dimensional model, is directly viewable whether DEM solid grid points elevation is close on view stereoscopic model, for single grid point height into
The accurate adjustment of row.
Embodiment 2
A kind of map surveying system using photogrammetric threedimensional model is deposited referring to Fig. 2, including processor 1 and memory 2
Reservoir 2 is stored with instruction set and calls for processor 1 to implement function such as:
Obtain the Aerial photography image for being directed to ground；
Aerial triangulation is carried out based on Aerial photography image；
Carry out the acquisition of ground elevation vector data；
Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；
In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
The relative orientation result determined according to digital aerial imagery；
IMU/DGPS/GPS data and photo control point coordinate are combined to carry out absolute orientation later；
Aerial triangulation result is calculated according to absolute orientation result.
In the sky when triangulation, DEM acquisition is carried out；
Based on DEM collection result, DOM production is carried out；
According to MOM and ground elevation vector data, TDOM production is carried out；
DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
When establishing earth's surface three-D profile, data are acquired herein in connection with DEM.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of map surveying method using photogrammetric threedimensional model, it is characterised in that: including
Obtain the Aerial photography image for being directed to ground；
Aerial triangulation is carried out based on Aerial photography image；
Carry out the acquisition of ground elevation vector data；
Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；
In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
2. the map surveying method according to claim 1 using photogrammetric threedimensional model, it is characterised in that: described
Aerial triangulation includes:
The relative orientation result determined according to digital aerial imagery；
IMU/DGPS/GPS data and photo control point coordinate are combined to carry out absolute orientation later；
Aerial triangulation result is calculated according to absolute orientation result.
3. the map surveying method according to claim 1 using photogrammetric threedimensional model, it is characterised in that: also wrap
It includes
In the sky when triangulation, DEM acquisition is carried out；
Based on DEM collection result, DOM production is carried out；
According to MOM and ground elevation vector data, TDOM production is carried out；
DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
4. the map surveying method according to claim 4 using photogrammetric threedimensional model, it is characterised in that: building
On the spot when table three-D profile, data are acquired herein in connection with DEM.
5. a kind of map surveying system using photogrammetric threedimensional model, it is characterised in that: including processor (1) and storage
Device (2), the memory (2) are stored with instruction set and call for the processor (1) to implement function such as:
Obtain the Aerial photography image for being directed to ground；
Aerial triangulation is carried out based on Aerial photography image；
Carry out the acquisition of ground elevation vector data；
Earth's surface three-D profile is established according to aerial triangulation result and ground elevation vector data；
In conjunction with Aerial photography image, earth's surface three-D profile imparting image information is established into three-dimensional model diagram.
6. the map surveying system according to claim 5 using photogrammetric threedimensional model, it is characterised in that: described
Instruction set also supplies the processor (1) to call to implement function such as:
The relative orientation result determined according to digital aerial imagery；
IMU/DGPS/GPS data and photo control point coordinate are combined to carry out absolute orientation later；
Aerial triangulation result is calculated according to absolute orientation result.
7. the map surveying system according to claim 5 using photogrammetric threedimensional model, it is characterised in that: described
Instruction set also supplies the processor (1) to call to implement function such as:
In the sky when triangulation, DEM acquisition is carried out；
Based on DEM collection result, DOM production is carried out；
According to MOM and ground elevation vector data, TDOM production is carried out；
DEM, TDOM are superimposed to three-dimensional model diagram, construct three-dimensional land map.
8. the map surveying system according to claim 7 using photogrammetric threedimensional model, it is characterised in that: described
Instruction set also supplies the processor (1) to call to implement function such as:
When establishing earth's surface three-D profile, data are acquired herein in connection with DEM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750500.XA CN110426021A (en) | 2019-08-14 | 2019-08-14 | Utilize the map surveying method and system of photogrammetric threedimensional model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750500.XA CN110426021A (en) | 2019-08-14 | 2019-08-14 | Utilize the map surveying method and system of photogrammetric threedimensional model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110426021A true CN110426021A (en) | 2019-11-08 |
Family
ID=68414745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910750500.XA Pending CN110426021A (en) | 2019-08-14 | 2019-08-14 | Utilize the map surveying method and system of photogrammetric threedimensional model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426021A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853142A (en) * | 2019-11-20 | 2020-02-28 | 中国民航科学技术研究院 | Airport clearance three-dimensional model construction method and device based on unmanned aerial vehicle shooting |
| CN111105456A (en) * | 2019-12-17 | 2020-05-05 | 厦门天海图汇信息科技有限公司 | Method for extracting four-to-four photos of house and constructing cadastral map four-to-four photos |
| CN112529498A (en) * | 2020-12-08 | 2021-03-19 | 牟茹月 | Warehouse logistics management method and system |
| CN113758468A (en) * | 2021-09-27 | 2021-12-07 | 福州鹏翔勘测设计有限公司 | Acquisition and processing method based on three-dimensional topographic mapping data |
| CN114332382A (en) * | 2022-03-10 | 2022-04-12 | 烟台市地理信息中心 | Three-dimensional model manufacturing method based on unmanned aerial vehicle proximity photogrammetry |
| CN116681873A (en) * | 2023-07-31 | 2023-09-01 | 山东省国土测绘院 | Image orthorectification method and system based on rapid updating of digital elevation model |
| CN117216039A (en) * | 2023-10-31 | 2023-12-12 | 重庆市规划和自然资源信息中心 | Method for building three-dimensional base of building based on three-dimensional cadastral database |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884321A (en) * | 2014-04-17 | 2014-06-25 | 西安煤航信息产业有限公司 | Remote-sensing image mapping process |
| CN104637370A (en) * | 2014-12-23 | 2015-05-20 | 河南城建学院 | Photogrammetry and remote sensing comprehensive teaching method and system |
| EP3098563A2 (en) * | 2015-05-29 | 2016-11-30 | Nikolaus Kreuzhermes | System and method for recording image data of a surface of an object |
| CN106327573A (en) * | 2016-08-25 | 2017-01-11 | 成都慧途科技有限公司 | Real scene three-dimensional modeling method for urban building |
| CN107607090A (en) * | 2017-09-12 | 2018-01-19 | 中煤航测遥感集团有限公司 | Building projects method and device for correcting |
-
2019
- 2019-08-14 CN CN201910750500.XA patent/CN110426021A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884321A (en) * | 2014-04-17 | 2014-06-25 | 西安煤航信息产业有限公司 | Remote-sensing image mapping process |
| CN104637370A (en) * | 2014-12-23 | 2015-05-20 | 河南城建学院 | Photogrammetry and remote sensing comprehensive teaching method and system |
| EP3098563A2 (en) * | 2015-05-29 | 2016-11-30 | Nikolaus Kreuzhermes | System and method for recording image data of a surface of an object |
| CN106327573A (en) * | 2016-08-25 | 2017-01-11 | 成都慧途科技有限公司 | Real scene three-dimensional modeling method for urban building |
| CN107607090A (en) * | 2017-09-12 | 2018-01-19 | 中煤航测遥感集团有限公司 | Building projects method and device for correcting |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853142A (en) * | 2019-11-20 | 2020-02-28 | 中国民航科学技术研究院 | Airport clearance three-dimensional model construction method and device based on unmanned aerial vehicle shooting |
| CN111105456A (en) * | 2019-12-17 | 2020-05-05 | 厦门天海图汇信息科技有限公司 | Method for extracting four-to-four photos of house and constructing cadastral map four-to-four photos |
| CN112529498A (en) * | 2020-12-08 | 2021-03-19 | 牟茹月 | Warehouse logistics management method and system |
| CN112529498B (en) * | 2020-12-08 | 2024-03-15 | 山东简策网络科技有限公司 | Warehouse logistics management method and system |
| CN113758468A (en) * | 2021-09-27 | 2021-12-07 | 福州鹏翔勘测设计有限公司 | Acquisition and processing method based on three-dimensional topographic mapping data |
| CN114332382A (en) * | 2022-03-10 | 2022-04-12 | 烟台市地理信息中心 | Three-dimensional model manufacturing method based on unmanned aerial vehicle proximity photogrammetry |
| CN114332382B (en) * | 2022-03-10 | 2022-06-07 | 烟台市地理信息中心 | Three-dimensional model manufacturing method based on unmanned aerial vehicle proximity photogrammetry |
| CN116681873A (en) * | 2023-07-31 | 2023-09-01 | 山东省国土测绘院 | Image orthorectification method and system based on rapid updating of digital elevation model |
| CN116681873B (en) * | 2023-07-31 | 2023-10-27 | 山东省国土测绘院 | Image orthorectification method and system based on rapid updating of digital elevation model |
| CN117216039A (en) * | 2023-10-31 | 2023-12-12 | 重庆市规划和自然资源信息中心 | Method for building three-dimensional base of building based on three-dimensional cadastral database |
| CN117216039B (en) * | 2023-10-31 | 2024-04-09 | 重庆市规划和自然资源信息中心 | Method for constructing three-dimensional base of building based on three-dimensional cadastral database |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110426021A (en) | Utilize the map surveying method and system of photogrammetric threedimensional model | |
| WO2020156273A1 (en) | Method for digital surveying and mapping and three-dimensional visualization in garden space | |
| Balsa-Barreiro et al. | Generation of visually aesthetic and detailed 3D models of historical cities by using laser scanning and digital photogrammetry | |
| CN111724477A (en) | Method for constructing multi-level three-dimensional terrain model through multi-source data fusion | |
| TW565810B (en) | Three-dimensional electronic map information generation method | |
| CN102506824B (en) | Method for generating digital orthophoto map (DOM) by urban low altitude unmanned aerial vehicle | |
| CN108168521A (en) | One kind realizes landscape three-dimensional visualization method based on unmanned plane | |
| CN105976426B (en) | A kind of quick three-dimensional atural object model building method | |
| CN109472865B (en) | Free measurable panoramic reproduction method based on image model drawing | |
| CN106611441B (en) | The treating method and apparatus of three-dimensional map | |
| CN109584364A (en) | A kind of generation method and device of the 2.5 dimension electronic maps based on inclination threedimensional model | |
| CN110765542A (en) | Lightweight method of high-precision digital elevation model | |
| CN116086411B (en) | Digital topography generation method, device, equipment and readable storage medium | |
| CN112150629A (en) | Vision-based coal inventory system and method | |
| CN113032977A (en) | Method for measuring and calculating earth and rock volume based on unmanned aerial vehicle inverse modeling technology | |
| CN111667569A (en) | Three-dimensional real-scene earthwork visual accurate measuring and calculating method based on Rhino and Grasshopper | |
| CN110415289A (en) | A kind of generation method and device of threedimensional model | |
| Wu et al. | Application analysis of three-dimensional real scene modeling of substation site based on UAV tilt photography | |
| Bitelli et al. | Low-height aerial imagery and digital photogrammetrical processing for archaeological mapping | |
| Dursun et al. | 3D city modelling of Istanbul historic peninsula by combination of aerial images and terrestrial laser scanning data | |
| CN114396920A (en) | Topographic map space element obtaining method based on oblique photography | |
| CN114972672A (en) | Method, device and equipment for constructing power transmission line live-action three-dimensional model and storage medium | |
| Yijing et al. | Construction and analysis of 3D scene model of landscape space based on UAV oblique photography and 3D laser scanner | |
| Piech et al. | Generating of building facades orthophotoplans with UAV and terrestrial photos | |
| CN111986320B (en) | Smart city application-oriented DEM and oblique photography model space fitting optimization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215000 room 2701, building 1, Zhongyin Huilong building, Suzhou Industrial Park, Jiangsu Province Applicant after: Boyada survey, planning and Design Group Co., Ltd Address before: 215000 room 2701, building 1, Zhongyin Huilong building, Suzhou Industrial Park, Jiangsu Province Applicant before: Suzhou boyada survey, planning and Design Group Co., Ltd |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191108 |
|
| RJ01 | Rejection of invention patent application after publication |