De la tomographie à l’interaction 3Den eXtented Reality

Abstract

Computed tomography, an X-ray based medical imaging technique, is increasingly used in archeology. However, its use is most often limited to the production of 2D or 3D images. Beyond these data visualization modes, it is necessary to question the possible interactions, contexts and uses that it is possible to implement. Augmented reality and virtual reality, or XR for eXtented Reality, make it possible to envisage natural and complex interactions with digital 3D environments based on data from computed tomography, by giving access to their internal structure. The operator can understand these physical, tangible or haptic interactions - from the Greek haptikós, tactile -, through different modalities and metaphors, associated with procedures or gestures that allow him to act on the virtual environment, made up of a set of information. The methodology and concepts presented in this article illustrate different interactive contexts in the XR environment. They are the result of a collaboration between Inrap, the Center for Research in Archeology, Archeosciences, History (CReAAH) and the Institute for Research in Computer Science and Random Systems (IRISA).

Keywords

• tomography
• virtual reality
• augmented reality
• interaction
• immersion
• eXtented Reality