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GEUINF: Real-Time Visualization of Indoor Facilities Using Mixed Reality
David Jurado1, Juan M Jurado2, Lidia Ortega2
1Computing and Numerical Analysis Department, University of Córdoba, 14071 Córdoba, Spain.
Sensors (Basel, Switzerland)
|February 10, 2021
Summary
This study introduces a smartphone app for visualizing hidden indoor infrastructure using mixed reality. It enables accurate, markerless 3D mapping and real-time visualization for facility management.
Area of Science:
- Computer Vision
- Augmented Reality
- Geographic Information Systems (GIS)
Background:
- Mixed Reality (MR) offers advanced visualization of virtual objects within real-world contexts, incorporating physical constraints.
- Ubiquitous systems like smartphones have advanced 3D capturing through sensor fusion, enabling real-time environment scanning and visualization.
- Assessing and maintaining hidden indoor infrastructure (e.g., pipes, electrical lines) is challenging due to their occlusion behind walls.
Purpose of the Study:
- To develop a novel smartphone application (GEUINF) for assessing indoor infrastructure status.
- To enable real-time visualization and interaction with digitized facility networks onsite.
- To provide a markerless approach for accurate 3D data capture and user localization.
Main Methods:
- Utilized smartphones with depth-sensing capabilities for capturing 3D data of the real environment.
- Developed a markerless approach based on scanning and geometrically aligning real-world planar surfaces with virtual 3D models.
- Employed the ARCore library for real-time tracking and alignment between virtual facility networks and the physical environment.
Main Results:
- Achieved centimeter-level accuracy in estimating user position and orientation without fixed markers.
- Enabled real-time visualization, navigation, and interaction with virtual facility networks overlaid on the real environment.
- Successfully aligned 3D planes of the real world with their corresponding virtual entities.
Conclusions:
- The GEUINF application offers a disruptive solution for the tedious and inefficient tasks of indoor infrastructure assessment and maintenance.
- The markerless, real-time visualization capability significantly enhances onsite understanding of hidden facilities.
- The method has potential applications for facility management by private companies and public institutions, and for integration with indoor navigation systems.
