Dimitris Grammenos

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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)
For a number of years, the primary medium for propagating human factors input to interactive system development has been paper-based guideline reference manuals. However, in the recent past, a number of tools for working with guidelines have emerged to ease the tasks of: (i) accessing and retrieving guidelines, (ii) applying recommendations to design(More)
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(More)
„In the past few years, the accessibility of electronic applications and services by disabled people has become a topic of paramount importance at an international level zseveral governments and international political bodies have adopted legislative and policy measures for application software and Web accessibility „ One of the basic needs of most people,(More)
The research in the area of game accessibility has grown significantly since the last time it was examined in 2005. This paper examines the body of work between 2005 and 2010. We selected a set of papers on topics we felt represented the scope of the field, but were not able to include all papers on the subject. A summary of the research we examined is(More)
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)
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)
This paper presents a computer vision system that supports non-instrumented, location-based interaction of multiple users with digital representations of large-scale artifacts. The proposed system is based on a camera network that observes multiple humans in front of a very large display. The acquired views are used to volumetrically reconstruct and track(More)