Gernot Goebbels

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We present a framework for the design and evaluation of distributed, collaborative 3D interaction focussing on projection based systems. We discuss the issues of collaborative 3D interaction using audio/video for face-to-face communication and the differences in using rear projection based Virtual Environments. Further, we explore how the use of(More)
In this paper a 3D tracking system for Virtual Environments is presented which utilizes infrared (IR) laser technology. Invisible laser patterns are projected from the user(s) to the screen via the input device Sceptre or the appending headtracking device. IR-sensible cameras which are placed near the projectors in a backprojection setup recognize the(More)
Simulation of an object's elastic deformation is an important feature in applications where three-dimensional object behavior is explored. In addition, the benefits of user-object interactions are best realized in interactive environments which require the rapid computation of deformations. In this paper we present a prototype of a system for the simulation(More)
Collaborative virtual environments (CVEs) allow a number of users to share a common virtual space, where they may interact with one another and the environment. Immersive Telepresence involves the use of Video and Audio communication in projection-based CVEs, to support collaboration over distance as if face-to-face. Such approaches include the Office of(More)
Recent studies have shown that through a careful combination of multiple sensory channels, so called multisensory binding effects can be achieved that can be beneficial for collision detection and texture recognition feedback. During the design of a new pen-input device called Tactylus, specific focus was put on exploring multisensory effects of(More)
In this report we are presenting the development of a novel Augmented Reality System for intra-operative navigation in reconstructive, maxillofacial surgery. At the moment the system is installed in the Center of advanced studies in cranio-maxillofacial surgery (HFZ) at Technical University of Munich. The ARSyS-Tricorder system is driven by low-cost PC(More)
We present a Virtual Reality application enabling interactive , physically correct simulation of tube-like flexible objects. Our objective was to describe flexible objects by a set of parameters (length, diameter and material constants) instead of rigid geometry (triangle meshes) and to give the user the possibility to add, delete and manipulate those(More)