Hannah Slay

Augmented Reality Chinese Checkers

This paper presents an application, Augmented Reality Chinese Checkers that we created to investigate user interface issues for table top projected augmented reality entertainment applications. A new tangible interaction device, the wireless button enhanced fiducial, is introduced to support selection tasks in mixed reality environments. The Augmented Reality Chinese Checkers game is built on a framework which can be used to create other computer supported collaborative games. The system is built using the Passive Detection Framework to track the 6 degrees of freedom position in real time of marked objects in the environment. The game supports up to six players at a time.

Using ARToolkit for passive tracking and presentation in ubiquitous workspaces

This paper presents new infrastructure for future work environments. These environments support a variety of display and interaction modalities for use by multiple users. To be able to interact in such environments, a mechanism must exist to track devices, displays, etc. We present a passive detection framework that uses ARToolkit and fiducial markers to track marked objects in a workspace. To solve for occlusion of targets, we propose the use of multiple cameras monitoring a work environment form multiple angles. A key advantage of this approach is that it allows the tracking cards to be used for both control and display of ambient information.

A Rapidly Adaptive Collaborative Ubiquitous Computing Environment to Allow Passive Detection of Marked Objects

This paper presents a tool to support the rapid and adaptive deployment of a collaborative, ubiquitous computing environment. A key tool for the configuration and deployment of this environment is a calibration tool to quickly and efficiently calculate the positions of cameras in a dynamic environment. This tool has been incorporated into our current Passive Detection Framework. The paper describes the context where our rapidly adaptive collaborative ubiquitous computing environment would be deployed. The results of a study to test the accuracy of the calibration tool are also presented. This study found that the calibration tool can calculate the position of cameras to within 25 mm for all lighting conditions examined.

Interaction and visualisation across multiple displays in ubiquitous computing environments

This paper describes the Universal Interaction Controller (UIC), a user interface framework and device designed to support interactions in ubiquitous computing environments, and the in-situ visualisation of ambient information in environments equipped with multiple heterogeneous displays. We describe the device and the infrastructure we have created to support it. We present the use of augmented reality to display information that is outside the bounds of traditional display surfaces.