Continuous acquisition method for three-dimensional information of indoor environment

An indoor environment and three-dimensional space technology, applied in the field of photogrammetry and three-dimensional laser, can solve the problems such as the inability to guarantee the accuracy of positioning and attitude determination, the inability to integrate information, and the lack of GPS signals.

Active Publication Date: 2017-02-08
WUHAN HI TARGET DIGITAL CLOUD TECH CO LTD
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the indoor environment, due to the lack and unreliability of GPS signals, the accuracy of basic positioning and attitude determination cannot be guaranteed, and the subsequent informa

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
  • Continuous acquisition method for three-dimensional information of indoor environment
  • Continuous acquisition method for three-dimensional information of indoor environment
  • Continuous acquisition method for three-dimensional information of indoor environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of indoor environment three-dimensional space information continuous acquisition method proposed by the present invention, its operation steps are as follows figure 1 shown. The specific operation is: first, use the indoor mobile measurement system to collect data in the indoor environment. The data collection process is carried out while the carrier is moving forward. The line-scan laser scanner is used to obtain point cloud data for rough matching. The ground three-dimensional The laser scanner performs three-dimensional scanning to obtain three-dimensional point cloud data when the carrier stops briefly, and at the same time, records and stores the collected time information. Define the carrier coordinate system in the indoor mobile measurement system, take the center of the line-scan laser scanner as the origin of the coordinate system, the direction in which the carrier travels is the positive direction of the Y-axis, the vertical upward direct...

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 relates to a continuous acquisition method for the three-dimensional information of an indoor environment. The method comprises the following operation steps: acquiring point cloud data by using an indoor mobile measuring system; selecting point clouds of line scanning of adjacent time quanta, carrying out feature searching and rough matching and calculating a relative geometrical relationship; constructing the relative positional relationship of all the line scanning point clouds in the whole acquisition time quantum; calculating the precise relative positional relationship of three-dimensional laser point clouds according to time and the roughly matched relative positional relationship; correcting the roughly matched relationship in the whole time quantum according to the precise positional relationship; comparing whether the relative relationship value of rough matching and precise matching is less than a threshold and checking whether all the data has been rectified; and repeating precise matching and correction if not, or otherwise, finishing acquisition of the three-dimensional information of space. The method has the advantages of a high degree of automation, rapidness and high efficiency.

Description

technical field [0001] The invention relates to a method for continuously collecting three-dimensional space information of an indoor environment, and belongs to the technical fields of photogrammetry and three-dimensional laser. Background technique [0002] As a new means of spatial information collection, the mobile measurement system is gradually being widely used in various industries. In the outdoor environment, the mobile measurement system uses the POS system for positioning and posture determination, and then combines various sensors equipped on the system, such as 3D laser scanners and high-definition panoramic cameras, to collect and acquire spatial 3D information. However, in the indoor environment, due to the lack and unreliability of GPS signals, the accuracy of basic positioning and attitude determination cannot be guaranteed, and the subsequent information cannot be fused. As a result, it is impossible to directly use the mobile measurement system available i...

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): G01C11/02
CPCG01C11/025
Inventor 危迟余建伟姚立
Owner WUHAN HI TARGET DIGITAL CLOUD TECH CO LTD
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