Force-feedback improves performance for steering and combined steering-targeting tasks
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
An experimental study on the role of touch in shared virtual environments
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on human-computer interaction and collaborative virtual environments
Traffic Control of Haptic Media in Networked Virtual Environments
KMN '02 Proceedings of the IEEE Workshop on Knowledge Media Networking
Improving Contact Realism through Event-Based Haptic Feedback
IEEE Transactions on Visualization and Computer Graphics
A network-adaptive transport scheme for haptic-based collaborative virtual environments
NetGames '06 Proceedings of 5th ACM SIGCOMM workshop on Network and system support for games
Proceedings of the First International Conference on Immersive Telecommunications
IEEE Transactions on Signal Processing
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In this paper we present a traffic control scheme for server to client communication in distributed haptic virtual environments (VE). We adopt a client-server architecture where the server manages the state consistency of the distributed VE, while haptic feedback is computed locally at each client. The update rate of network traffic from the server to the client is dynamically adapted by exploiting characteristics and limitations of human haptic perception. With this, an excellent trade-off between network communication efficiency and perceptually robust rendering of haptic feedback is achieved. Subjective tests with two users collaboratively manipulating a common object show a packet rate reduction of up to 99% from the server to the clients without deteriorating haptic feedback quality.