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In this paper, we present an algorithm to haptically render point clouds without first building a corresponding polygonal mesh. Our algorithm deduces necessary surface information, which is inherently unavailable in point clouds, by building neighborhood knowledge into each surface point, and also by using bounding boxes to imply surfaces in place of the voids found between neighboring points in the...
We consider the problem of maximizing the multicast lifetime in wireless ad hoc networks with directional antennas. By a simulation study, we have discovered that the existing distributed algorithm for such optimization problem may generate considerable number of control messages to build up a longest-lived multicast tree in large-scale networks. This may prohibit them from being used directly in...
In this paper, we present a collision detection algorithm for use in hapto-visual virtual environments containing highly- detailed, rigid, and dynamic models that are manipulated with probe-like haptic devices. Our approach is primarily motivated by the observation that highly detailed virtual models are typically represented by dense point clouds (specifically those that result from high-resolution...
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