Development of Wide-Area Tracking System for Augmented Reality

Abstract

Abstract. In this study, two types of marker-based tracking systems for Augmented Reality were developed: a tracking system using line markers and a tracking system using circular markers. Both markers were designed for use inside buildings such as nuclear power plants, which are very complicated and in which it is difficult to paste many large markers. To enlarge the area in which tracking is available using only a limited number of markers, a hybrid tracking method and a two-layer tracking method were also developed. The experimental evaluation shows that both methods can increase the available area compared to legacy methods such as single-camera tracking and simple square markers.

Development and Evaluation of a Temporary Placement and Conveyance Operation Simulation System Using Augmented Reality

“…10 shows a circular marker applied in this study. Compared with other markers, it has the advantage that it is useful in both long-distance (>3 m) and short-distance (<3 m) tracking [9]. Every circular marker is designed with a unique ID.…”

“…However, if the initial guess of the matrix is too far from the real value, then the algorithm might produce an incorrect result. To solve this problem, a camera tracking technology [9] is applied. By capturing markers, it estimates the position and orientation of a camera based on the world coordinate system.…”

“…The position and orientation of the superimposed model is changed following the movement of the dice marker. Using the camera tracking technology [9] (as described in Section 3.2), the position and orientation of the camera are estimated in real time by capturing the markers pasted in the environment in advance. The relative position and orientation between the dice marker and the camera can also be calculated when the dice marker is captured by the camera.…”