Sciweavers

VR
2008
IEEE
169views Virtual Reality» more  VR 2008»
13 years 11 months ago
Conversational Pointing Gestures for Virtual Reality Interaction: Implications from an Empirical Study
Interaction in conversational interfaces strongly relies on the system’s capability to interpret the user’s references to objects via deictic expressions. Deictic gestures, es...
Thies Pfeiffer, Marc Erich Latoschik, Ipke Wachsmu...
VR
2008
IEEE
129views Virtual Reality» more  VR 2008»
13 years 11 months ago
Object-Capability Security in Virtual Environments
Access control is an important aspect of shared virtual environments. Resource access may not only depend on prior authorization, but also on context of usage such as distance or ...
Martin Scheffler, Jan P. Springer, Bernd Froehlich
VR
2008
IEEE
128views Virtual Reality» more  VR 2008»
13 years 11 months ago
Showing Users the Way: Signs in Virtual Worlds
In this paper, we report the results of a pilot study designed to evaluate the impact of signs as navigation aids in virtual worlds. Test subjects were divided into three groups (...
Daniel C. Cliburn, Stacy Rilea
VR
2008
IEEE
139views Virtual Reality» more  VR 2008»
13 years 11 months ago
Psychophysical Influence on Tactual Impression by Mixed-Reality Visual Stimulation
This paper describes the influence of visual stimulation on the tactual sense in a mixed-reality environment; i.e., how a tactual impression of a real object is affected by seeing...
Akiko Iesaki, Akihiro Somada, Asako Kimura, Fumihi...
VR
2008
IEEE
228views Virtual Reality» more  VR 2008»
13 years 11 months ago
Creating a Speech Enabled Avatar from a Single Photograph
This paper presents a complete framework for creating a speechenabled avatar from a single image of a person. Our approach uses a generic facial motion model which represents defo...
Dmitri Bitouk, Shree K. Nayar
VR
2008
IEEE
127views Virtual Reality» more  VR 2008»
13 years 11 months ago
A Load Simulation and Metrics Framework for Distributed Virtual Reality
We describe a simple load-measure-model method for analyzing the scalability of Distributed Virtual Environments (DVEs). We use a load simulator and three metrics to measure a DVE...
H. Lally Singh, Denis Gracanin, Kresimir Matkovic
VR
2008
IEEE
136views Virtual Reality» more  VR 2008»
13 years 11 months ago
Uncertainty Boundaries for Complex Objects in Augmented Reality
Registration errors between the physical world and computergenerated objects are a central problem in Augmented Reality (AR) systems. Some existing AR systems have demonstrated ho...
Jiajian Chen, Blair MacIntyre
VR
2008
IEEE
158views Virtual Reality» more  VR 2008»
13 years 11 months ago
Inexpensive Immersive Projection
Most projector-based immersive displays have numerous problems relating to complexity, space, and cost. We present a technique for rendering perspectively correct images using a c...
Nancy P. Y. Yuen, William C. Thibault
VR
2008
IEEE
233views Virtual Reality» more  VR 2008»
13 years 11 months ago
Advanced Multi-Frame Rate Rendering Techniques
Multi-frame rate rendering is a parallel rendering technique that renders interactive parts of the scene on one graphics card while the rest of the scene is rendered asynchronousl...
Jan P. Springer, Christopher Lux, Dirk Reiners, Be...
VR
2008
IEEE
188views Virtual Reality» more  VR 2008»
13 years 11 months ago
A Universal Virtual Locomotion System: Supporting Generic Redirected Walking and Dynamic Passive Haptics within Legacy 3D Graphi
In this paper we introduce a virtual locomotion system that allows navigation within any large-scale virtual environment (VE) by real walking. In contrast to [5] we have developed...
Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus...