GHAR: GeoPose-based Handheld Augmented Reality for Architectural Positioning, Manipulation and Visual Exploration
Sabahat Israr, Dawar Khan, Zhanglin Cheng, Mukhtaj Khan, Kiyoshi Kiyokawa

TL;DR
This paper introduces GHAR, a markerless GeoPose-based handheld AR system for architectural visualization and manipulation, demonstrating improved usability and flexibility over traditional marker-based AR in construction planning.
Contribution
The paper presents a novel markerless HAR framework using GeoPose tracking for architectural modeling, enhancing ease of use and manipulation capabilities.
Findings
Significant usability improvement over marker-based HAR
Effective manipulation of architectural models with 7 DOF
Positive user study results supporting markerless approach
Abstract
Handheld Augmented Reality (HAR) is revolutionizing the civil infrastructure application domain. The current trend in HAR relies on marker tracking technology. However, marker-based systems have several limitations, such as difficulty in use and installation, sensitivity to light, and marker design. In this paper, we propose a markerless HAR framework with GeoPose-based tracking. We use different gestures for manipulation and achieve 7 DOF (3 DOF each for translation and rotation, and 1 DOF for scaling). The proposed framework, called GHAR, is implemented for architectural building models. It augments virtual CAD models of buildings on the ground, enabling users to manipulate and visualize an architectural model before actual construction. The system offers a quick view of the building infrastructure, playing a vital role in requirement analysis and planning in construction technology.…
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Taxonomy
TopicsAugmented Reality Applications · 3D Modeling in Geospatial Applications · 3D Surveying and Cultural Heritage
