CN105758386B - A kind of 3 d modeling of building method that laser point cloud is integrated with aviation image - Google Patents
A kind of 3 d modeling of building method that laser point cloud is integrated with aviation image Download PDFInfo
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- CN105758386B CN105758386B CN201410777683.1A CN201410777683A CN105758386B CN 105758386 B CN105758386 B CN 105758386B CN 201410777683 A CN201410777683 A CN 201410777683A CN 105758386 B CN105758386 B CN 105758386B
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Abstract
The invention discloses a kind of 3 d modeling of building methods that laser point cloud and aviation image integrate, the laser point cloud and aviation image of building are obtained using airborne laser equipment, make high-precision digital complex demodulation and digital orthoimage DOM product, carry out the fine modeling of building, make building three-dimensional electronic sand table and said three-dimensional body frame model, vehicle-mounted data quality optimization is carried out again, the three-dimensional modeling of element is carried out using airborne laser equipment, finally carry out the integrated of the three-dimensional digital model achievement of airborne laser equipment and the measurement acquisition of vehicle-mounted mobile laser equipment.The present invention makes full use of and merges advanced laser point cloud technology and aviation image technology, three-dimensional panorama laser scanning efficiently can be carried out to building and modeled, obtain clearly, the actual configuration three-dimensional data of high-precision building, greatly improve the collecting efficiency and quality of data, the high degree of automation of data processing improves the whole production efficiency of three-dimensional modeling.
Description
Technical field
The present invention relates to 3 d modeling of building field, specifically a kind of laser point cloud building integrated with aviation image
Three-dimensional modeling method.
Background technique
With the development of science and technology, model and realize that the demand of building virtual reality is more and more to three-dimensional building object, three
The realization for tieing up virtual building will be unprecedented to the generation of the prospect of the numerous areas such as computer science and Earth Information Science
Tremendous influence, as three-dimensional virtual city, intelligent robot navigation, guided missile intelligence are led, vehicle assistant drive, building simulation shows, are flown
Row simulation, medical simulation, virtual museum and virtual artistic exhibition hall etc..
Three-dimensional modeling generally directly uses d-making software, such as computer-assisted mapping design software, three at present
The modeling such as design softwares such as animation, this method energy realistic representation urban structure and material feature are tieed up, especially for those
Natural object and irregular building effect are preferable, but large-scale region is modeled, not only time-consuming and laborious, also without
Ji.
Summary of the invention
The purpose of the present invention is to provide the low laser point cloud of a kind of high degree of automation, production cost and aviation image collection
At 3 d modeling of building method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of 3 d modeling of building method that laser point cloud is integrated with aviation image, the specific steps are as follows:
(1) laser point cloud and aviation image of building are obtained using airborne laser equipment；
(2) it is based on the high-precision digital complex demodulation of airborne laser equipment making and digital orthoimage DOM product,
And the respective advantage of laser point cloud and aviation image carries out the fine modeling of building in integrated airborne laser equipment, production is built
Build object three-dimensional electronic sand table；
(3) by carrying out accurate calibration and empty three encryptions of aviation image to airborne laser equipment, laser point cloud is realized
It is matched with the high-precision of aviation image, by aviation image with reference to the optimization on implementation model boundary and the modification of model detail, system
Make to complete building said three-dimensional body frame model；
(4) the highly dense laser point cloud and high-resolution of building two sides environment are obtained using vehicle-mounted mobile Laser Scanning Equipment
The aviation image of rate carries out vehicle-mounted data quality optimization with reference to airborne laser equipment achievement；
(5) three-dimensional measuring is carried out using latitude and longitude coordinates of the airborne laser equipment to building, it is special to airborne laser equipment
It is not the accurate calibration of digital camera progress of taking photo by plane, realizes the accurate matching of aviation image and laser point cloud；After precise classification
Laser point cloud, using elevation differential technique carry out element laser point cloud classify, determine latitude and longitude coordinates and the position of building；
With reference to accurate matched aviation image, identifying and judgeing for laser point cloud entity elements is carried out；Reference pair answers laser point cloud, passes through
The mode of section performance shows position and the three-dimensional configuration of building, carries out three-dimensional modeling；
(6) collection of the three-dimensional digital model achievement of airborne laser equipment and the measurement acquisition of vehicle-mounted mobile laser equipment is carried out
At.
As a further solution of the present invention: the airborne laser equipment includes first laser scanner, digital phase of taking photo by plane
Machine, the first host computer, the first data processor, inertial navigation unit and GPS device.
As a further solution of the present invention: the vehicle-mounted mobile Laser Scanning Equipment includes second laser scanner, number
Code camera, the second host computer and the second data processor.
As further scheme of the invention: first data processor and the second data processor are installed in electricity
On sub- wiring board, it is respectively connected with the first data transmitter-receiver set on the first data processor and the second data processor, described first
The second data transmitter-receiver set, first data processor and the second data processing are respectively connected on host computer and the second host computer
Device is carried out with the first host computer and the second host computer two-way respectively by the first data transmitter-receiver set and the second data transmitter-receiver set
Communication.
Compared with prior art, the beneficial effects of the present invention are:
The present invention makes full use of and merges advanced laser point cloud technology and aviation image technology, can be efficiently to building
Object carry out three-dimensional panorama laser scanning simultaneously model, obtain clearly, the actual configuration three-dimensional data of high-precision building, design
Reasonable and easy to use, using effect is good, greatly improves the collecting efficiency and quality of data, the automation of data processing
Degree is high, improves the whole production efficiency of three-dimensional modeling.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
A kind of 3 d modeling of building method that laser point cloud is integrated with aviation image, the specific steps are as follows:
(1) laser point cloud and aviation image of building, the sidelapping of laser point cloud are obtained using airborne laser equipment
Degree should reach 30%, and the ship's control of aviation image should reach 60%, and sidelapping degree should reach 30%；
(2) it is based on the high-precision digital complex demodulation of airborne laser equipment making and digital orthoimage DOM product,
And the respective advantage of laser point cloud and aviation image carries out the fine modeling of building in integrated airborne laser equipment, production is built
Build object three-dimensional electronic sand table；Digital complex demodulation is the laser point cloud data according to acquisition, using the rule based on elevation features
Then grid points cloud filtered classification method extracts the laser point cloud of ground noodles, carries out Triangulation Network Model building, is formed after interpolation
's；
(3) by carrying out accurate calibration and empty three encryptions of aviation image to airborne laser equipment, laser point cloud is realized
It is matched with the high-precision of aviation image, by aviation image with reference to the optimization on implementation model boundary and the modification of model detail, system
Make to complete building said three-dimensional body frame model；
(4) the highly dense laser point cloud and high-resolution of building two sides environment are obtained using vehicle-mounted mobile Laser Scanning Equipment
The aviation image of rate carries out vehicle-mounted data quality optimization with reference to airborne laser equipment achievement；
(5) three-dimensional measuring is carried out using latitude and longitude coordinates of the airborne laser equipment to building, it is special to airborne laser equipment
It is not the accurate calibration of digital camera progress of taking photo by plane, realizes the accurate matching of aviation image and laser point cloud；After precise classification
Laser point cloud, using elevation differential technique carry out element laser point cloud classify, determine latitude and longitude coordinates and the position of building；
With reference to accurate matched aviation image, identifying and judgeing for laser point cloud entity elements is carried out；Reference pair answers laser point cloud, passes through
The mode of section performance shows position and the three-dimensional configuration of building, carries out three-dimensional modeling；
(6) collection of the three-dimensional digital model achievement of airborne laser equipment and the measurement acquisition of vehicle-mounted mobile laser equipment is carried out
At.
Airborne laser equipment includes first laser scanner, digital camera of taking photo by plane, the first host computer, the first data processing
Device, inertial navigation unit and GPS device, the first data processor is by first laser scanner cloud point data obtained and takes photo by plane
Into the first host computer, inertial navigation unit connects digital camera aviation image data synchronized upload obtained with GPS device
Host computer, first laser scanner need three calibration angle of drift, roll angle and pitch angle parameters, and digital camera of taking photo by plane needs calibration to navigate
Drift angle, roll angle, pitch angle and camera distortion parameter；Vehicle-mounted mobile Laser Scanning Equipment includes second laser scanner, number
Code camera, the second host computer and the second data processor, the second data processor is by second laser scanner cloud point obtained
Data and digital camera aviation image data synchronized upload obtained is taken photo by plane into the second host computer.
First data processor and the second data processor are installed on electronic circuit board, the first data processor and
It is respectively connected with the first data transmitter-receiver set on two data processors, the second number is respectively connected on the first host computer and the second host computer
According to R-T unit, the first data processor and the second data processor are filled by the first data transmitter-receiver set and the second data transmit-receive
It sets and carries out two-way communication with the first host computer and the second host computer respectively.
The present invention makes full use of and merges advanced laser point cloud technology and aviation image technology, can be efficiently to building
Object carry out three-dimensional panorama laser scanning simultaneously model, obtain clearly, the actual configuration three-dimensional data of high-precision building, design
Reasonable and easy to use, using effect is good, greatly improves the collecting efficiency and quality of data, the automation of data processing
Degree is high, improves the whole production efficiency of three-dimensional modeling.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (1)
1. a kind of 3 d modeling of building method that laser point cloud and aviation image integrate, which is characterized in that specific step is as follows:
(1) laser point cloud and aviation image of building are obtained using airborne laser equipment；
(2) the high-precision digital complex demodulation of airborne laser equipment making and digital orthoimage DOM product, union are based on
The fine modeling that building is carried out at the respective advantage of laser point cloud in airborne laser equipment and aviation image, makes building
Three-dimensional electronic sand table；
(3) by carrying out accurate calibration and empty three encryptions of aviation image to airborne laser equipment, laser point cloud and boat are realized
The high-precision of empty image matches, and by aviation image with reference to the optimization on implementation model boundary and the modification of model detail, has made
At building said three-dimensional body frame model；
(4) the highly dense laser point cloud of building two sides environment and high-resolution is obtained using vehicle-mounted mobile Laser Scanning Equipment
Aviation image carries out vehicle-mounted data quality optimization with reference to airborne laser equipment achievement；
(5) three-dimensional measuring is carried out to the latitude and longitude coordinates of building using airborne laser equipment, to taking photo by plane in airborne laser equipment
Digital camera carries out accurate calibration, realizes the accurate matching of aviation image and laser point cloud；With reference to airborne sharp after precise classification
Laser point cloud in light device carries out laser point cloud in the airborne laser equipment of element using elevation differential technique and classifies, determines building
The latitude and longitude coordinates of object and position；With reference to accurate matched aviation image, carries out laser point cloud entity in airborne laser equipment and want
Element identifies and judges；Reference pair answers laser point cloud in airborne laser equipment, shows building in such a way that section shows
Position and three-dimensional configuration carry out three-dimensional modeling；
(6) the integrated of the three-dimensional digital model achievement of airborne laser equipment and the measurement acquisition of vehicle-mounted mobile laser equipment is carried out；
The airborne laser equipment includes first laser scanner, digital camera of taking photo by plane, the first host computer, the first data processing
Device, inertial navigation unit and GPS device；
The vehicle-mounted mobile Laser Scanning Equipment includes second laser scanner, digital camera, the second host computer and the second data
Processor；
First data processor and the second data processor are installed on electronic circuit board, the first data processor and
It is respectively connected with the first data transmitter-receiver set on two data processors, is respectively connected on first host computer and the second host computer
Two data transmitter-receiver sets, first data processor and the second data processor pass through the first data transmitter-receiver set and the second number
Two-way communication is carried out with the first host computer and the second host computer respectively according to R-T unit.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106683167B (en) * | 2016-07-19 | 2020-03-03 | 谢鸿宇 | Automatic modeling method for high-precision model of complex building |
| CN107505289A (en) * | 2017-06-20 | 2017-12-22 | 北京师范大学 | A kind of measuring method of the mountain region directional reflectance based on topographic sand table |
| CN109556529B (en) * | 2018-12-14 | 2020-11-17 | 中铁隧道局集团有限公司 | Tunnel deformation monitoring and analyzing method based on grid projection point cloud processing technology |
| DE102019202304B4 (en) * | 2019-02-20 | 2021-01-28 | Siemens Schweiz Ag | Method and arrangement for creating a digital building model |
| CN110807830A (en) * | 2019-11-12 | 2020-02-18 | 武汉称象科技有限公司 | Laser point cloud automatic processing system for actual measurement actual quantity of building |
| CN112233056B (en) * | 2020-10-16 | 2024-03-12 | 北京恒华伟业科技股份有限公司 | Point cloud fusion method and device for multi-source data and storage medium |
| CN113223167B (en) * | 2021-05-24 | 2021-11-23 | 中国气象局气象探测中心 | Three-dimensional weather sand table building method and system |
| CN113256813B (en) * | 2021-07-01 | 2021-09-17 | 西南石油大学 | Constrained building facade orthophoto map extraction method |
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| CN101976467A (en) * | 2010-09-13 | 2011-02-16 | 天津市星际空间地理信息工程有限公司 | High-precision three-dimensional urban scene construction method integrating airborne LIDAR (Laser Intensity Direction And Ranging) technology and vehicle-mounted mobile laser scanning technology |
| CN102074047B (en) * | 2011-01-06 | 2012-08-08 | 天津市星际空间地理信息工程有限公司 | High-fineness urban three-dimensional modeling method |
| CN102411778B (en) * | 2011-07-28 | 2013-08-14 | 武汉大学 | Automatic registration method of airborne laser point cloud and aerial image |
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Denomination of invention: A 3D building modeling method based on the integration of laser point cloud and aerial image Effective date of registration: 20210414 Granted publication date: 20181204 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Tianhe branch Pledgor: GUANGZHOU LANTU GEOGRAPHIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000125 |
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Date of cancellation: 20220602 Granted publication date: 20181204 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Tianhe branch Pledgor: GUANGZHOU LANTU GEOGRAPHIC INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000125 |
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