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This paper presents the design and evaluation of "Game Over!", which is the world's first universally inaccessible game (i.e., a game that can be played by no one). The game is meant to be used as an educational tool for disseminating and teaching game accessibility guidelines. This is achieved by providing game developers a first-hand (frustrating)(More)
This paper presents a system that supports the exploration of digital representations of large-scale museum ar-tifacts 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(More)
Today, computer games are one of the major sources of entertainment. Computer games are usually far more demanding than typical interactive applications in terms of motor and sensory skills needed for interaction control, due to special-purpose input devices, complicated interaction techniques, and the primary emphasis on visual control and attention. This(More)
A frequent need of museums is to provide visitors with context-sensitive information about exhibits in the form of maps, or scale models. This paper suggests an augmented-reality approach for supplementing physical surfaces with digital information, through the use of pieces of plain paper that act as personal, location-aware, interactive screens. The(More)
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(More)