Publications


Exploration of large-scale museum artifacts through non-instrumented, location-based, multi-user interaction

Zabulis, X., Grammenos, D., Sarmis, T., Tzevanidis, K., Argyros, A.A. (2010) Exploration of large-scale museum artifacts through non-instrumented, location-based, multi-user interaction In Proceedings of the 11th VAST International Symposium on Virtual Reality, Archaeology and Cultural Heritage, VAST’2010, Palais du Louvre, Paris, France, 21-24 September 2010, 155-162.

Abstract

This paper presents a system that supports the exploration of digital representations of large-scale museum artifacts in through non-instrumented, location-based interaction. The system employs a state-of-the-art computer vision system, which localizes and tracks multiple visitors. The artifact is presented in a wall-sized projection screen and it is visually annotated with text and images according to the location as well as walkthrough trajectories of the tracked visitors. The system is evaluated in terms of computational performance, localization accuracy, tracking robustness and usability.

Building a multi-touch display based on computer vision techniques

Michel, D., Argyros, A. A., Grammenos, D., Zabulis, X. C., & Sarmis, T. (2009) Building a multi-touch display based on computer vision techniques In Proceedings of the IAPR Conference on Machine Vision and Applications (MVAΆ09), Hiyoshi Campus, Keio University, Japan. 74-77.

Abstract

We present the development of a multi-touch display based on computer vision techniques. The developed system is built upon low cost, off-the-shelf hardware components and a careful selection of computer vision techniques. The resulting system is capable of detecting and tracking several objects that may move freely on the surface of a wide projection screen. It also provides additional information regarding the detected and tracked objects, such as their orientation, their full contour, etc. All of the above are achieved robustly, in real time and regardless of the visual appearance of what may be independently projected on the projection screen. We also present indicative results from the exploitation of the developed system in three application scenarios and discuss directions for further research.

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