High-precision three-dimensional urban scene construction method integrating airborne LIDAR (Laser Intensity Direction And Ranging) technology and vehicle-mounted mobile laser scanning technology

A vehicle-mounted mobile and laser scanning technology, applied in 3D modeling, using optical devices, image data processing, etc., to achieve the effect of high accuracy and high precision of the plane and elevation of the building frame model

Inactive Publication Date: 2011-02-16
星际空间(天津)科技发展有限公司
View PDF0 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the various problems existing in the existing traditional surveying and mapping technology in the construction of 3D digital cities and improve work efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Integrating airborne LIDAR and vehicle-mounted mobile laser scanning measurement technology to construct a 3D digital city virtual scene is quite different from traditional technical methods, mainly reflected in:

[0021] Make full use of the original surveying and mapping results obtained by airborne LIDAR and vehicle-mounted mobile laser scanning technology for 3D urban modeling. Airborne LIDAR aerial survey technology is mainly used to construct large-scale digital elevation models, digital orthophotos and building 3D body frame models corresponding to large-scale urban 3D scenes, forming the main frame of urban 3D scenes; vehicle-mounted mobile laser scanning technology is mainly used for Obtain high-definition modeling of urban sketch elements on both sides of urban roads for fine modeling of urban detailed scenes. The advantages of the two technical means complement each other and can produce high-definition urban 3D scenes.

[0022] 1. Through the airborne LIDAR...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-precision urban three-dimensional modeling method integrating an airborne LIDAR (Laser Intensity Direction And Ranging) technology and a vehicle-mounted mobile laser scanning measurement technology, comprising the following steps of: firstly, acquiring high-precision three-dimensional laser point clouds and high-resolution digital aerial photos of a measuring region by adopting airborne LIDAR, fast extracting a high-precision digital elevation model and a digital orthoimage product, carrying out high-precision modeling on a building to make the scenes of an urban three-dimensional electronic sand table and an urban three-dimensional building body frame model; secondly, completing the acquisition of the high-density laser point clouds and high-precision digital photos of urban scenes positioned at both sides of a road of the measuring region by adopting vehicle-mounted mobile laser scanning measurement, carrying out the quality optimization of vehicle-mounted data by referring to airborne LIDAR results, and then fast carrying out three-dimensional modeling on various urban piece elements; and finally integrating three-dimensional digital model results acquired through the airborne LIDAR and the vehicle-mounted mobile laser scanning measurement, therefore the quality and the work efficiency of the urban three-dimensional modeling are greatly enhanced. The invention can greatly reduces the development cost of projects.

Description

1. Technical field [0001] The invention relates to a three-dimensional urban modeling technology in the field of three-dimensional digital city construction, in particular to a high-precision urban three-dimensional modeling method integrating airborne LIDAR and vehicle-mounted mobile laser scanning measurement technology. 2. Technical background [0002] Traditional urban 3D modeling mainly uses traditional surveying and mapping methods such as topographic maps, traditional aerial photogrammetry, satellite remote sensing images, engineering surveys, and ground laser scanning to carry out urban 3D modeling. However, the above-mentioned technologies all have their obvious disadvantages and deficiencies: [0003] (1) Modeling using topographic maps requires a large-scale digital line drawing with strong current situation in the urban area, and the building heights are obtained through visual estimation or manual measurement for modeling. This method has problems such as lack ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01B11/00
Inventor 窦华成邓世军江宇李建平王力王国飞
Owner 星际空间(天津)科技发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap