Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Indoor and Outdoor Integrated Organization of Urban 3D Scene Data

A 3D scene, indoor and outdoor technology, which is applied in the field of indoor and outdoor integrated organization of urban 3D scene data, can solve problems that affect the efficiency of 3D visualization, lack of coherence, and cannot meet the requirements of dynamic scheduling of massive indoor and outdoor 3D scene data visualization. , to achieve the effect of improving the efficiency of visual drawing

Active Publication Date: 2016-09-14
WUHAN UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different visual organization of indoor and outdoor scene data, there is a lack of effective coherence in the process of roaming and switching between indoor and outdoor scenes. It is often necessary to rebuild the 3D rendering scene, including rendering data update and coordinate system conversion, which seriously affects the efficiency of 3D visualization.
The integrated organization technology of indoor and outdoor scene data is not very mature at present, and cannot meet the requirements of visual dynamic scheduling of massive indoor and outdoor 3D scene data

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method for Indoor and Outdoor Integrated Organization of Urban 3D Scene Data
  • A Method for Indoor and Outdoor Integrated Organization of Urban 3D Scene Data
  • A Method for Indoor and Outdoor Integrated Organization of Urban 3D Scene Data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0022] please see figure 1 , figure 2 , the technical scheme adopted in the present invention is: a kind of indoor and outdoor integrated organization method of city three-dimensional scene data, at first define:

[0023] Entity: defined as an object, representing relatively independent 3D model monomers such as tables, chairs, and computers;

[0024] Region: Defined as a region, it represents the semantic division of rooms, corridors, and halls based on affiliation and the collection of model monomers contained in it. The Region that belongs to the indoor...

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 an indoor and outdoor integrated organization method for urban three-dimensional scene data. The method comprises the following steps: at first, extracting object data of Entity, Region and Portal from indoor three-dimensional model data, and performing 'Region-Entity' correlation and 'Region-Portal' correlation on the data to finally form an indoor three-dimensional scene data organization structure in a complete 'Entity-Region-Portal' organization form; afterwards, depending on a geographic position of a building model, correlating corresponding leaf node data in outdoor three-dimensional scene data organized in a quad-tree form, processing a leaf node into a Region object and connecting to indoor Region through a corresponding Portal object, thus realizing integrated organization of indoor and outdoor three-dimensional scene data. When being applied to indoor and outdoor integrated visualization of urban three-dimensional scenes, the method disclosed by the invention guarantees continuity of scene rendering, reduces data volume of real-time drawing and dynamic loading on each frame, and can obviously improve the three-dimensional rendering efficiency of a system.

Description

technical field [0001] The invention belongs to the field of computer applications, and mainly relates to an indoor and outdoor integrated organization method of urban three-dimensional scene data. Background technique [0002] With the continuous deepening of the construction and application of smart cities, indoor navigation and positioning applications are becoming more and more practical, and the large-scale outdoor roaming based on the three-dimensional city model is gradually developing towards the direction of indoor and outdoor integrated roaming. The scene data is organized in an integrated way to meet the requirements of overall data scheduling in the process of indoor and outdoor visualization, and to achieve efficient real-time 3D visualization. [0003] At present, the outdoor scene data mainly adopts the organization technology based on the quadtree, and the organization technology based on the BSP tree partition is used indoors. Due to the different visual or...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06F17/27
Inventor 熊汉江戴雪峰朱泽洲郭胜
Owner WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com