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In this paper, we design and implement a transport scheme for haptic interactions in CVEs (collaborative virtual environments). When interacting with haptic interfaces in the CVEs, network delay jitter and packet loss over the Internet may seriously degrade the user experience of haptic interactions. The existing transport schemes tailored for networked(More)
A data filtering scheme is proposed for transmission and error control of haptic events in haptic-based network virtual environments; this scheme is called as priority-based haptic event filtering. Because a high update rate of approximately 1 kHz is required for haptic rendering, sophisticated transmission rate control and reduction schemes are necessary(More)
In this paper, we propose an enhanced Access Grid (eAG) system which enables distributed collaboration among heterogeneous systems with 3D media. There have been various kinds of studies addressing distributed collaboration systems. Most systems exploit 2D display or provide no communication among heterogeneous systems. Our proposed e-AG system has the(More)
In this paper, we carry out a transparency analysis and propose a haptic synchronization scheme for force-reflecting teleoperations such as a telerobotic game over time-varying network delays. The transparency analysis quantifies the force feedback distortion caused by network delay and packet loss, and predicts the maximally allowable delay and loss for(More)
Haptic-based NVEs (networked virtual environments) with CS (client/server) communication architectures support better consistency but induce larger end-to-end delays than those with P2P (peer-to-peer) communication architectures. Unfortunately, large delay severely deteriorates the transparency (i.e., reality) of haptic interaction. To improve the haptic(More)