Exploiting Context-Awareness in Augmented Reality Applications

In this paper, we study how to exploit the context-awareness in augmented reality (AR) applications to take advantage of the context in both the high-level and low-level processing. We propose an AR system architecture that works with a context-awareness framework. In the system, both the preliminary and the final context is provided to the process that needs the context. We provide two scenarios that exploit the context in AR applications in the low-level processing and show implementation results with the proposed system. In the first scenario, we adopt a light sensor to enhance the marker detection performance under the varying lighting condition. In the second scenario, we exploit the context in the marker recognition stage where a single color marker is recognized as several different sub-markers based on the context. By adopting the context in the low-level processing, it is possible to address the problems that are hard to be solved by the computer vision techniques only.